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authorwdenk <wdenk>2003-07-16 21:53:01 +0000
committerwdenk <wdenk>2003-07-16 21:53:01 +0000
commit945af8d723a29e9b6289d84250745ed0dc16fc81 (patch)
tree6798d0b717c05b01742df0c410038c702b8a1979 /cpu/mpc5xxx
parentcb4dbb7bbc271f988e14ec353a5e86d7f10e1da0 (diff)
* Add support for IceCube board (with MGT5100 and MPC5200 CPUs)U-Boot-0_4_4
* Add support for MGT5100 and MPC5200 processors
Diffstat (limited to 'cpu/mpc5xxx')
-rw-r--r--cpu/mpc5xxx/Makefile45
-rw-r--r--cpu/mpc5xxx/config.mk27
-rw-r--r--cpu/mpc5xxx/cpu.c103
-rw-r--r--cpu/mpc5xxx/cpu_init.c185
-rw-r--r--cpu/mpc5xxx/fec.c944
-rw-r--r--cpu/mpc5xxx/fec.h286
-rw-r--r--cpu/mpc5xxx/firmware_sc_task.impl.S364
-rw-r--r--cpu/mpc5xxx/firmware_sc_task_bestcomm.impl.S363
-rw-r--r--cpu/mpc5xxx/interrupts.c180
-rw-r--r--cpu/mpc5xxx/io.S128
-rw-r--r--cpu/mpc5xxx/loadtask.c76
-rw-r--r--cpu/mpc5xxx/sdma.h93
-rw-r--r--cpu/mpc5xxx/serial.c165
-rw-r--r--cpu/mpc5xxx/speed.c93
-rw-r--r--cpu/mpc5xxx/start.S817
-rw-r--r--cpu/mpc5xxx/traps.c246
16 files changed, 4115 insertions, 0 deletions
diff --git a/cpu/mpc5xxx/Makefile b/cpu/mpc5xxx/Makefile
new file mode 100644
index 00000000000..2688ee62b57
--- /dev/null
+++ b/cpu/mpc5xxx/Makefile
@@ -0,0 +1,45 @@
+#
+# (C) Copyright 2003
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+
+include $(TOPDIR)/config.mk
+
+LIB = lib$(CPU).a
+
+START = start.o
+ASOBJS = io.o firmware_sc_task_bestcomm.impl.o firmware_sc_task.impl.o
+OBJS = traps.o cpu.o cpu_init.o speed.o interrupts.o serial.o \
+ loadtask.o fec.o
+
+all: .depend $(START) $(ASOBJS) $(LIB)
+
+$(LIB): $(OBJS)
+ $(AR) crv $@ $(ASOBJS) $(OBJS)
+
+#########################################################################
+
+.depend: Makefile $(START:.o=.S) $(OBJS:.o=.c)
+ $(CC) -M $(CFLAGS) $(START:.o=.S) $(ASOBJS:.o=.S) $(OBJS:.o=.c) > $@
+
+sinclude .depend
+
+#########################################################################
diff --git a/cpu/mpc5xxx/config.mk b/cpu/mpc5xxx/config.mk
new file mode 100644
index 00000000000..f84b098cae2
--- /dev/null
+++ b/cpu/mpc5xxx/config.mk
@@ -0,0 +1,27 @@
+#
+# (C) Copyright 2003
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+
+PLATFORM_RELFLAGS += -mrelocatable -ffixed-r14 -meabi
+
+PLATFORM_CPPFLAGS += -DCONFIG_MPC5XXX -ffixed-r2 -ffixed-r29 \
+ -mstring -mcpu=603e -mmultiple
diff --git a/cpu/mpc5xxx/cpu.c b/cpu/mpc5xxx/cpu.c
new file mode 100644
index 00000000000..7d95d2f9c3f
--- /dev/null
+++ b/cpu/mpc5xxx/cpu.c
@@ -0,0 +1,103 @@
+/*
+ * (C) Copyright 2000-2003
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+/*
+ * CPU specific code for the MPC5xxx CPUs
+ */
+
+#include <common.h>
+#include <watchdog.h>
+#include <command.h>
+#include <mpc5xxx.h>
+#include <asm/processor.h>
+
+int checkcpu (void)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+
+ ulong clock = gd->cpu_clk;
+ char buf[32];
+
+ puts ("CPU: ");
+
+ printf (CPU_ID_STR);
+
+ printf (" (JTAG ID %08lx)", *(vu_long *)MPC5XXX_CDM_JTAGID);
+
+ printf (" at %s MHz\n", strmhz (buf, clock));
+
+ return 0;
+}
+
+/* ------------------------------------------------------------------------- */
+
+int
+do_reset (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+{
+ ulong msr, addr;
+
+ *(vu_long *)MPC5XXX_CDM_SRESET &= ~(1 << 16); /* Checkstop Reset enable */
+
+ /* Interrupts and MMU off */
+ __asm__ __volatile__ ("mfmsr %0":"=r" (msr):);
+
+ msr &= ~(MSR_ME | MSR_EE | MSR_IR | MSR_DR);
+ __asm__ __volatile__ ("mtmsr %0"::"r" (msr));
+
+ /*
+ * Trying to execute the next instruction at a non-existing address
+ * should cause a machine check, resulting in reset
+ */
+#ifdef CFG_RESET_ADDRESS
+ addr = CFG_RESET_ADDRESS;
+#else
+ /*
+ * note: when CFG_MONITOR_BASE points to a RAM address, CFG_MONITOR_BASE
+ * - sizeof (ulong) is usually a valid address. Better pick an address
+ * known to be invalid on your system and assign it to CFG_RESET_ADDRESS.
+ */
+ addr = CFG_MONITOR_BASE - sizeof (ulong);
+#endif
+ ((void (*)(void)) addr) ();
+ return 1;
+
+}
+
+/* ------------------------------------------------------------------------- */
+
+/*
+ * Get timebase clock frequency (like cpu_clk in Hz)
+ *
+ */
+unsigned long get_tbclk (void)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+
+ ulong tbclk;
+
+ tbclk = (gd->bus_clk + 3L) / 4L;
+
+ return (tbclk);
+}
+
+/* ------------------------------------------------------------------------- */
diff --git a/cpu/mpc5xxx/cpu_init.c b/cpu/mpc5xxx/cpu_init.c
new file mode 100644
index 00000000000..7322027e8b2
--- /dev/null
+++ b/cpu/mpc5xxx/cpu_init.c
@@ -0,0 +1,185 @@
+/*
+ * (C) Copyright 2000-2003
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <mpc5xxx.h>
+
+#if defined(CONFIG_MGT5100)
+#define START_REG(start) ((start) >> 15)
+#define STOP_REG(start, size) (((start) + (size) - 1) >> 15)
+#elif defined(CONFIG_MPC5200)
+#define START_REG(start) ((start) >> 16)
+#define STOP_REG(start, size) (((start) + (size) - 1) >> 16)
+#endif
+
+/*
+ * Breath some life into the CPU...
+ *
+ * Set up the memory map,
+ * initialize a bunch of registers.
+ */
+void cpu_init_f (void)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+
+ unsigned long addecr = (1 << 25); /* Boot_CS */
+#if defined(CFG_RAMBOOT) && defined(CONFIG_MGT5100)
+ addecr |= (1 << 22); /* SDRAM enable */
+#endif
+ /* Pointer is writable since we allocated a register for it */
+ gd = (gd_t *) (CFG_INIT_RAM_ADDR + CFG_GBL_DATA_OFFSET);
+
+ /* Clear initial global data */
+ memset ((void *) gd, 0, sizeof (gd_t));
+
+ /*
+ * Memory Controller: configure chip selects and enable them
+ */
+#if defined(CFG_BOOTCS_START) && defined(CFG_BOOTCS_SIZE)
+ *(vu_long *)MPC5XXX_BOOTCS_START = START_REG(CFG_BOOTCS_START);
+ *(vu_long *)MPC5XXX_BOOTCS_STOP = STOP_REG(CFG_BOOTCS_START,
+ CFG_BOOTCS_SIZE);
+#endif
+#if defined(CFG_BOOTCS_CFG)
+ *(vu_long *)MPC5XXX_BOOTCS_CFG = CFG_BOOTCS_CFG;
+#endif
+
+#if defined(CFG_CS0_START) && defined(CFG_CS0_SIZE)
+ *(vu_long *)MPC5XXX_CS0_START = START_REG(CFG_CS0_START);
+ *(vu_long *)MPC5XXX_CS0_STOP = STOP_REG(CFG_CS0_START, CFG_CS0_SIZE);
+ /* CS0 and BOOT_CS cannot be enabled at once. */
+ /* addecr |= (1 << 16); */
+#endif
+#if defined(CFG_CS0_CFG)
+ *(vu_long *)MPC5XXX_CS0_CFG = CFG_CS0_CFG;
+#endif
+
+#if defined(CFG_CS1_START) && defined(CFG_CS1_SIZE)
+ *(vu_long *)MPC5XXX_CS1_START = START_REG(CFG_CS1_START);
+ *(vu_long *)MPC5XXX_CS1_STOP = STOP_REG(CFG_CS1_START, CFG_CS1_SIZE);
+ addecr |= (1 << 17);
+#endif
+#if defined(CFG_CS1_CFG)
+ *(vu_long *)MPC5XXX_CS1_CFG = CFG_CS1_CFG;
+#endif
+
+#if defined(CFG_CS2_START) && defined(CFG_CS2_SIZE)
+ *(vu_long *)MPC5XXX_CS2_START = START_REG(CFG_CS2_START);
+ *(vu_long *)MPC5XXX_CS2_STOP = STOP_REG(CFG_CS2_START, CFG_CS2_SIZE);
+ addecr |= (1 << 18);
+#endif
+#if defined(CFG_CS2_CFG)
+ *(vu_long *)MPC5XXX_CS2_CFG = CFG_CS2_CFG;
+#endif
+
+#if defined(CFG_CS3_START) && defined(CFG_CS3_SIZE)
+ *(vu_long *)MPC5XXX_CS3_START = START_REG(CFG_CS3_START);
+ *(vu_long *)MPC5XXX_CS3_STOP = STOP_REG(CFG_CS3_START, CFG_CS3_SIZE);
+ addecr |= (1 << 19);
+#endif
+#if defined(CFG_CS3_CFG)
+ *(vu_long *)MPC5XXX_CS3_CFG = CFG_CS3_CFG;
+#endif
+
+#if defined(CFG_CS4_START) && defined(CFG_CS4_SIZE)
+ *(vu_long *)MPC5XXX_CS4_START = START_REG(CFG_CS4_START);
+ *(vu_long *)MPC5XXX_CS4_STOP = STOP_REG(CFG_CS4_START, CFG_CS4_SIZE);
+ addecr |= (1 << 20);
+#endif
+#if defined(CFG_CS4_CFG)
+ *(vu_long *)MPC5XXX_CS4_CFG = CFG_CS4_CFG;
+#endif
+
+#if defined(CFG_CS5_START) && defined(CFG_CS5_SIZE)
+ *(vu_long *)MPC5XXX_CS5_START = START_REG(CFG_CS5_START);
+ *(vu_long *)MPC5XXX_CS5_STOP = STOP_REG(CFG_CS5_START, CFG_CS5_SIZE);
+ addecr |= (1 << 21);
+#endif
+#if defined(CFG_CS5_CFG)
+ *(vu_long *)MPC5XXX_CS5_CFG = CFG_CS5_CFG;
+#endif
+
+#if defined(CONFIG_MPC5200)
+ addecr |= 1;
+#if defined(CFG_CS6_START) && defined(CFG_CS6_SIZE)
+ *(vu_long *)MPC5XXX_CS6_START = START_REG(CFG_CS6_START);
+ *(vu_long *)MPC5XXX_CS6_STOP = STOP_REG(CFG_CS6_START, CFG_CS6_SIZE);
+ addecr |= (1 << 26);
+#endif
+#if defined(CFG_CS6_CFG)
+ *(vu_long *)MPC5XXX_CS6_CFG = CFG_CS6_CFG;
+#endif
+
+#if defined(CFG_CS7_START) && defined(CFG_CS7_SIZE)
+ *(vu_long *)MPC5XXX_CS7_START = START_REG(CFG_CS5_START);
+ *(vu_long *)MPC5XXX_CS7_STOP = STOP_REG(CFG_CS7_START, CFG_CS7_SIZE);
+ addecr |= (1 << 27);
+#endif
+#if defined(CFG_CS7_CFG)
+ *(vu_long *)MPC5XXX_CS7_CFG = CFG_CS7_CFG;
+#endif
+
+#if defined(CFG_CS_BURST)
+ *(vu_long *)MPC5XXX_CS_BURST = CFG_CS_BURST;
+#endif
+#if defined(CFG_CS_DEADCYCLE)
+ *(vu_long *)MPC5XXX_CS_DEADCYCLE = CFG_CS_DEADCYCLE;
+#endif
+#endif /* CONFIG_MPC5200 */
+
+ /* Enable chip selects */
+ *(vu_long *)MPC5XXX_ADDECR = addecr;
+ *(vu_long *)MPC5XXX_CS_CTRL = (1 << 24);
+
+ /* Setup pin multiplexing */
+#if defined(CFG_GPS_PORT_CONFIG)
+ *(vu_long *)MPC5XXX_GPS_PORT_CONFIG = CFG_GPS_PORT_CONFIG;
+#endif
+}
+
+/*
+ * initialize higher level parts of CPU like time base and timers
+ */
+int cpu_init_r (void)
+{
+ /* mask all interrupts */
+#if defined(CONFIG_MGT5100)
+ *(vu_long *)MPC5XXX_ICTL_PER_MASK = 0xfffffc00;
+#elif defined(CONFIG_MPC5200)
+ *(vu_long *)MPC5XXX_ICTL_PER_MASK = 0xffffff00;
+#endif
+ *(vu_long *)MPC5XXX_ICTL_CRIT |= 0x0001ffff;
+ *(vu_long *)MPC5XXX_ICTL_EXT &= ~0x00000f00;
+
+#if defined(CONFIG_MPC5200)
+ /* enable timebase */
+ *(vu_long *)(MPC5XXX_XLBARB + 0x40) |= (1 << 13);
+#endif
+
+#if (CONFIG_COMMANDS & CFG_CMD_NET) && defined(CONFIG_MPC5XXX_FEC)
+ /* load FEC microcode */
+ loadtask(0, 2);
+#endif
+
+ return (0);
+}
diff --git a/cpu/mpc5xxx/fec.c b/cpu/mpc5xxx/fec.c
new file mode 100644
index 00000000000..b8e2560cf7c
--- /dev/null
+++ b/cpu/mpc5xxx/fec.c
@@ -0,0 +1,944 @@
+/*
+ * (C) Copyright 2003
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * This file is based on mpc4200fec.c,
+ * (C) Copyright Motorola, Inc., 2000
+ */
+
+#include <common.h>
+#include <mpc5xxx.h>
+#include <malloc.h>
+#include <net.h>
+#include <miiphy.h>
+#include "sdma.h"
+#include "fec.h"
+
+#define DEBUG 0x8
+
+#if (CONFIG_COMMANDS & CFG_CMD_NET) && defined(CONFIG_NET_MULTI) && \
+ defined(CONFIG_MPC5XXX_FEC)
+
+#if (DEBUG & 0x60)
+static void tfifo_print(mpc5xxx_fec_priv *fec);
+static void rfifo_print(mpc5xxx_fec_priv *fec);
+#endif /* DEBUG */
+
+#if (DEBUG & 0x40)
+static uint32 local_crc32(char *string, unsigned int crc_value, int len);
+#endif
+
+/********************************************************************/
+static int mpc5xxx_fec_rbd_init(mpc5xxx_fec_priv *fec)
+{
+ int ix;
+ char *data;
+
+ /*
+ * the receive ring is located right after the transmit one
+ */
+ for (ix = 0; ix < FEC_RBD_NUM; ix++) {
+ data = (char *)malloc(FEC_MAX_PKT_SIZE);
+ if (data == NULL) {
+ printf ("RBD INIT FAILED\n");
+ return -1;
+ }
+ fec->rbdBase[ix].status = FEC_RBD_EMPTY;
+ fec->rbdBase[ix].dataLength = 0;
+ fec->rbdBase[ix].dataPointer = (uint32)data;
+ }
+
+ /*
+ * have the last RBD to close the ring
+ */
+ fec->rbdBase[ix - 1].status |= FEC_RBD_WRAP;
+ fec->rbdIndex = 0;
+
+ return 0;
+}
+
+/********************************************************************/
+static void mpc5xxx_fec_tbd_init(mpc5xxx_fec_priv *fec)
+{
+ int ix;
+
+ for (ix = 0; ix < FEC_TBD_NUM; ix++) {
+ fec->tbdBase[ix].status = 0;
+ }
+
+ /*
+ * Have the last TBD to close the ring
+ */
+ fec->tbdBase[ix - 1].status |= FEC_TBD_WRAP;
+
+ /*
+ * Initialize some indices
+ */
+ fec->tbdIndex = 0;
+ fec->usedTbdIndex = 0;
+ fec->cleanTbdNum = FEC_TBD_NUM;
+}
+
+/********************************************************************/
+static void mpc5xxx_fec_rbd_clean(mpc5xxx_fec_priv *fec, FEC_RBD * pRbd)
+{
+ /*
+ * Reset buffer descriptor as empty
+ */
+ if ((fec->rbdIndex) == (FEC_RBD_NUM - 1))
+ pRbd->status = (FEC_RBD_WRAP | FEC_RBD_EMPTY);
+ else
+ pRbd->status = FEC_RBD_EMPTY;
+
+ pRbd->dataLength = 0;
+
+ /*
+ * Now, we have an empty RxBD, restart the SmartDMA receive task
+ */
+ SDMA_TASK_ENABLE(FEC_RECV_TASK_NO);
+
+ /*
+ * Increment BD count
+ */
+ fec->rbdIndex = (fec->rbdIndex + 1) % FEC_RBD_NUM;
+}
+
+/********************************************************************/
+static void mpc5xxx_fec_tbd_scrub(mpc5xxx_fec_priv *fec)
+{
+ FEC_TBD *pUsedTbd;
+
+#if (DEBUG & 0x1)
+ printf ("tbd_scrub: fec->cleanTbdNum = %d, fec->usedTbdIndex = %d\n",
+ fec->cleanTbdNum, fec->usedTbdIndex);
+#endif
+
+ /*
+ * process all the consumed TBDs
+ */
+ while (fec->cleanTbdNum < FEC_TBD_NUM) {
+ pUsedTbd = &fec->tbdBase[fec->usedTbdIndex];
+ if (pUsedTbd->status & FEC_TBD_READY) {
+#if (DEBUG & 0x20)
+ printf("Cannot clean TBD %d, in use\n", fec->cleanTbdNum);
+#endif
+ return;
+ }
+
+ /*
+ * clean this buffer descriptor
+ */
+ if (fec->usedTbdIndex == (FEC_TBD_NUM - 1))
+ pUsedTbd->status = FEC_TBD_WRAP;
+ else
+ pUsedTbd->status = 0;
+
+ /*
+ * update some indeces for a correct handling of the TBD ring
+ */
+ fec->cleanTbdNum++;
+ fec->usedTbdIndex = (fec->usedTbdIndex + 1) % FEC_TBD_NUM;
+ }
+}
+
+/********************************************************************/
+static void mpc5xxx_fec_set_hwaddr(mpc5xxx_fec_priv *fec, char *mac)
+{
+ uint8 currByte; /* byte for which to compute the CRC */
+ int byte; /* loop - counter */
+ int bit; /* loop - counter */
+ uint32 crc = 0xffffffff; /* initial value */
+
+ /*
+ * The algorithm used is the following:
+ * we loop on each of the six bytes of the provided address,
+ * and we compute the CRC by left-shifting the previous
+ * value by one position, so that each bit in the current
+ * byte of the address may contribute the calculation. If
+ * the latter and the MSB in the CRC are different, then
+ * the CRC value so computed is also ex-ored with the
+ * "polynomium generator". The current byte of the address
+ * is also shifted right by one bit at each iteration.
+ * This is because the CRC generatore in hardware is implemented
+ * as a shift-register with as many ex-ores as the radixes
+ * in the polynomium. This suggests that we represent the
+ * polynomiumm itself as a 32-bit constant.
+ */
+ for (byte = 0; byte < 6; byte++) {
+ currByte = mac[byte];
+ for (bit = 0; bit < 8; bit++) {
+ if ((currByte & 0x01) ^ (crc & 0x01)) {
+ crc >>= 1;
+ crc = crc ^ 0xedb88320;
+ } else {
+ crc >>= 1;
+ }
+ currByte >>= 1;
+ }
+ }
+
+ crc = crc >> 26;
+
+ /*
+ * Set individual hash table register
+ */
+ if (crc >= 32) {
+ fec->eth->iaddr1 = (1 << (crc - 32));
+ fec->eth->iaddr2 = 0;
+ } else {
+ fec->eth->iaddr1 = 0;
+ fec->eth->iaddr2 = (1 << crc);
+ }
+
+ /*
+ * Set physical address
+ */
+ fec->eth->paddr1 = (mac[0] << 24) + (mac[1] << 16) + (mac[2] << 8) + mac[3];
+ fec->eth->paddr2 = (mac[4] << 24) + (mac[5] << 16) + 0x8808;
+}
+
+/********************************************************************/
+static int mpc5xxx_fec_init(struct eth_device *dev, bd_t * bis)
+{
+ mpc5xxx_fec_priv *fec = (mpc5xxx_fec_priv *)dev->priv;
+ struct mpc5xxx_sdma *sdma = (struct mpc5xxx_sdma *)MPC5XXX_SDMA;
+ const uint8 phyAddr = 0; /* Only one PHY */
+
+#if (DEBUG & 0x1)
+ printf ("mpc5xxx_fec_init... Begin\n");
+#endif
+
+ /*
+ * Initialize RxBD/TxBD rings
+ */
+ mpc5xxx_fec_rbd_init(fec);
+ mpc5xxx_fec_tbd_init(fec);
+
+ /*
+ * Initialize GPIO pins
+ */
+ if (fec->xcv_type == SEVENWIRE) {
+ /* 10MBit with 7-wire operation */
+ *(vu_long *)MPC5XXX_GPS_PORT_CONFIG |= 0x00020000;
+ } else {
+ /* 100MBit with MD operation */
+ *(vu_long *)MPC5XXX_GPS_PORT_CONFIG |= 0x00050000;
+ }
+
+ /*
+ * Clear FEC-Lite interrupt event register(IEVENT)
+ */
+ fec->eth->ievent = 0xffffffff;
+
+ /*
+ * Set interrupt mask register
+ */
+ fec->eth->imask = 0x00000000;
+
+ /*
+ * Set FEC-Lite receive control register(R_CNTRL):
+ */
+ if (fec->xcv_type == SEVENWIRE) {
+ /*
+ * Frame length=1518; 7-wire mode
+ */
+ fec->eth->r_cntrl = 0x05ee0020; /*0x05ee0000;FIXME */
+ } else {
+ /*
+ * Frame length=1518; MII mode;
+ */
+ fec->eth->r_cntrl = 0x05ee0024; /*0x05ee0004;FIXME */
+ }
+
+ if (fec->xcv_type == SEVENWIRE) {
+ /*
+ * Set FEC-Lite transmit control register(X_CNTRL):
+ */
+ /*fec->eth->x_cntrl = 0x00000002; */ /* half-duplex, heartbeat */
+ fec->eth->x_cntrl = 0x00000000; /* half-duplex, heartbeat disabled */
+ } else {
+ /*fec->eth->x_cntrl = 0x00000006; */ /* full-duplex, heartbeat */
+ fec->eth->x_cntrl = 0x00000004; /* full-duplex, heartbeat disabled */
+
+ /*
+ * Set MII_SPEED = (1/(mii_speed * 2)) * System Clock(25Mhz)
+ * and do not drop the Preamble.
+ */
+ fec->eth->mii_speed = (0x5 << 1); /* No MII for 7-wire mode */
+ }
+
+ /*
+ * Set Opcode/Pause Duration Register
+ */
+ fec->eth->op_pause = 0x00010020; /*FIXME0xffff0020; */
+
+ /*
+ * Set Rx FIFO alarm and granularity value
+ */
+ fec->eth->rfifo_cntrl = 0x0c000000;
+ fec->eth->rfifo_alarm = 0x0000030c;
+#if (DEBUG & 0x22)
+ if (fec->eth->rfifo_status & 0x00700000 ) {
+ printf("mpc5xxx_fec_init() RFIFO error\n");
+ }
+#endif
+
+ /*
+ * Set Tx FIFO granularity value
+ */
+ fec->eth->tfifo_cntrl = 0x0c000000;
+#if (DEBUG & 0x2)
+ printf("tfifo_status: 0x%08x\n", fec->eth->tfifo_status);
+ printf("tfifo_alarm: 0x%08x\n", fec->eth->tfifo_alarm);
+#endif
+
+ /*
+ * Set transmit fifo watermark register(X_WMRK), default = 64
+ */
+ fec->eth->tfifo_alarm = 0x00000080;
+ fec->eth->x_wmrk = 0x2;
+
+ /*
+ * Set individual address filter for unicast address
+ * and set physical address registers.
+ */
+ mpc5xxx_fec_set_hwaddr(fec, dev->enetaddr);
+
+ /*
+ * Set multicast address filter
+ */
+ fec->eth->gaddr1 = 0x00000000;
+ fec->eth->gaddr2 = 0x00000000;
+
+ /*
+ * Turn ON cheater FSM: ????
+ */
+ fec->eth->xmit_fsm = 0x03000000;
+
+#if defined(CONFIG_MPC5200)
+ /*
+ * Turn off COMM bus prefetch in the MGT5200 BestComm. It doesn't
+ * work w/ the current receive task.
+ */
+ sdma->PtdCntrl |= 0x00000001;
+#endif
+
+ /*
+ * Set priority of different initiators
+ */
+ sdma->IPR0 = 7; /* always */
+ sdma->IPR3 = 6; /* Eth RX */
+ sdma->IPR4 = 5; /* Eth Tx */
+
+ /*
+ * Clear SmartDMA task interrupt pending bits
+ */
+ SDMA_CLEAR_IEVENT(FEC_RECV_TASK_NO);
+
+ /*
+ * Set SmartDMA intMask register to enable SmartDMA task interrupts
+ */
+ SDMA_INT_ENABLE(FEC_RECV_TASK_NO);
+
+ /*
+ * Initialize SmartDMA parameters stored in SRAM
+ */
+ *(int *)FEC_TBD_BASE = (int)fec->tbdBase;
+ *(int *)FEC_RBD_BASE = (int)fec->rbdBase;
+ *(int *)FEC_TBD_NEXT = (int)fec->tbdBase;
+ *(int *)FEC_RBD_NEXT = (int)fec->rbdBase;
+
+ if (fec->xcv_type != SEVENWIRE) {
+ /*
+ * Initialize PHY(LXT971A):
+ *
+ * Generally, on power up, the LXT971A reads its configuration
+ * pins to check for forced operation, If not cofigured for
+ * forced operation, it uses auto-negotiation/parallel detection
+ * to automatically determine line operating conditions.
+ * If the PHY device on the other side of the link supports
+ * auto-negotiation, the LXT971A auto-negotiates with it
+ * using Fast Link Pulse(FLP) Bursts. If the PHY partner does not
+ * support auto-negotiation, the LXT971A automatically detects
+ * the presence of either link pulses(10Mbps PHY) or Idle
+ * symbols(100Mbps) and sets its operating conditions accordingly.
+ *
+ * When auto-negotiation is controlled by software, the following
+ * steps are recommended.
+ *
+ * Note:
+ * The physical address is dependent on hardware configuration.
+ *
+ */
+ int timeout = 1;
+ uint16 phyStatus;
+
+ /*
+ * Reset PHY, then delay 300ns
+ */
+ miiphy_write(phyAddr, 0x0, 0x8000);
+ udelay(1000);
+
+ if (fec->xcv_type == MII10) {
+ /*
+ * Force 10Base-T, FDX operation
+ */
+ printf("Forcing 10 Mbps ethernet link... ");
+ miiphy_read(phyAddr, 0x1, &phyStatus);
+ /*
+ miiphy_write(fec, phyAddr, 0x0, 0x0100);
+ */
+ miiphy_write(phyAddr, 0x0, 0x0180);
+
+ timeout = 20;
+ do { /* wait for link status to go down */
+ udelay(10000);
+ if ((timeout--) == 0) {
+#if (DEBUG & 0x2)
+ printf("hmmm, should not have waited...");
+#endif
+ break;
+ }
+ miiphy_read(phyAddr, 0x1, &phyStatus);
+#if (DEBUG & 0x2)
+ printf("=");
+#endif
+ } while ((phyStatus & 0x0004)); /* !link up */
+
+ timeout = 1000;
+ do { /* wait for link status to come back up */
+ udelay(10000);
+ if ((timeout--) == 0) {
+ printf("failed. Link is down.\n");
+ break;
+ }
+ miiphy_read(phyAddr, 0x1, &phyStatus);
+#if (DEBUG & 0x2)
+ printf("+");
+#endif
+ } while (!(phyStatus & 0x0004)); /* !link up */
+
+ printf ("done.\n");
+ } else { /* MII100 */
+ /*
+ * Set the auto-negotiation advertisement register bits
+ */
+ miiphy_write(phyAddr, 0x4, 0x01e1);
+
+ /*
+ * Set MDIO bit 0.12 = 1(&& bit 0.9=1?) to enable auto-negotiation
+ */
+ miiphy_write(phyAddr, 0x0, 0x1200);
+
+ /*
+ * Wait for AN completion
+ */
+ timeout = 5000;
+ do {
+ udelay(1000);
+
+ if ((timeout--) == 0) {
+#if (DEBUG & 0x2)
+ printf("PHY auto neg 0 failed...\n");
+#endif
+ return -1;
+ }
+
+ if (miiphy_read(phyAddr, 0x1, &phyStatus) != 0) {
+#if (DEBUG & 0x2)
+ printf("PHY auto neg 1 failed 0x%04x...\n", phyStatus);
+#endif
+ return -1;
+ }
+ } while ((phyStatus & 0x0020) != 0x0020);
+
+#if (DEBUG & 0x2)
+ printf("PHY auto neg complete! \n");
+#endif
+ }
+
+ }
+
+ /*
+ * Enable FEC-Lite controller
+ */
+ fec->eth->ecntrl |= 0x00000006;
+
+ if (fec->xcv_type != SEVENWIRE) {
+#if (DEBUG & 0x2)
+ uint16 phyStatus, i;
+ uint8 phyAddr = 0;
+
+ for (i = 0; i < 9; i++) {
+ miiphy_read(phyAddr, i, &phyStatus);
+ printf("Mii reg %d: 0x%04x\n", i, phyStatus);
+ }
+ for (i = 16; i < 21; i++) {
+ miiphy_read(phyAddr, i, &phyStatus);
+ printf("Mii reg %d: 0x%04x\n", i, phyStatus);
+ }
+#endif
+ }
+ /*
+ * Enable SmartDMA receive task
+ */
+ SDMA_TASK_ENABLE(FEC_RECV_TASK_NO);
+
+#if (DEBUG & 0x1)
+ printf("mpc5xxx_fec_init... Done \n");
+#endif
+
+ return 0;
+}
+
+/********************************************************************/
+static void mpc5xxx_fec_halt(struct eth_device *dev)
+{
+ mpc5xxx_fec_priv *fec = (mpc5xxx_fec_priv *)dev->priv;
+ struct mpc5xxx_sdma *sdma = (struct mpc5xxx_sdma *)MPC5XXX_SDMA;
+ int counter = 0xffff;
+
+#if (DEBUG & 0x2)
+ if (fec->xcv_type != SEVENWIRE) {
+ uint16 phyStatus, i;
+ uint8 phyAddr = 0;
+
+ for (i = 0; i < 9; i++) {
+ miiphy_read(phyAddr, i, &phyStatus);
+ printf("Mii reg %d: 0x%04x\n", i, phyStatus);
+ }
+ for (i = 16; i < 21; i++) {
+ miiphy_read(phyAddr, i, &phyStatus);
+ printf ("Mii reg %d: 0x%04x\n", i, phyStatus);
+ }
+ }
+#endif
+
+
+ /*
+ * mask FEC chip interrupts
+ */
+ fec->eth->imask = 0;
+
+ /*
+ * issue graceful stop command to the FEC transmitter if necessary
+ */
+ fec->eth->x_cntrl |= 0x00000001;
+
+ /*
+ * wait for graceful stop to register
+ */
+ while ((counter--) && (!(fec->eth->ievent & 0x10000000))) ;
+
+ SDMA_INT_DISABLE (FEC_RECV_TASK_NO);
+
+ /*
+ * Disable SmartDMA tasks
+ */
+ SDMA_TASK_DISABLE (FEC_XMIT_TASK_NO);
+ SDMA_TASK_DISABLE (FEC_RECV_TASK_NO);
+
+#if defined(CONFIG_MPC5200)
+ /*
+ * Turn on COMM bus prefetch in the MGT5200 BestComm after we're
+ * done. It doesn't work w/ the current receive task.
+ */
+ sdma->PtdCntrl &= ~0x00000001;
+#endif
+
+ /*
+ * Disable the Ethernet Controller
+ */
+ fec->eth->ecntrl &= 0xfffffffd;
+
+ /*
+ * Clear FIFO status registers
+ */
+ fec->eth->rfifo_status &= 0x00700000;
+ fec->eth->tfifo_status &= 0x00700000;
+
+ fec->eth->reset_cntrl = 0x01000000;
+
+ /*
+ * Issue a reset command to the FEC chip
+ */
+ fec->eth->ecntrl |= 0x1;
+
+ /*
+ * wait at least 16 clock cycles
+ */
+ udelay(10);
+
+#if (DEBUG & 0x3)
+ printf("Ethernet task stopped\n");
+#endif
+}
+
+#if (DEBUG & 0x60)
+/********************************************************************/
+
+static void tfifo_print(mpc5xxx_fec_priv *fec)
+{
+ uint16 phyAddr = 0;
+ uint16 phyStatus;
+
+ if ((fec->eth->tfifo_lrf_ptr != fec->eth->tfifo_lwf_ptr)
+ || (fec->eth->tfifo_rdptr != fec->eth->tfifo_wrptr)) {
+
+ miiphy_read(phyAddr, 0x1, &phyStatus);
+ printf("\nphyStatus: 0x%04x\n", phyStatus);
+ printf("ecntrl: 0x%08x\n", fec->eth->ecntrl);
+ printf("ievent: 0x%08x\n", fec->eth->ievent);
+ printf("x_status: 0x%08x\n", fec->eth->x_status);
+ printf("tfifo: status 0x%08x\n", fec->eth->tfifo_status);
+
+ printf(" control 0x%08x\n", fec->eth->tfifo_cntrl);
+ printf(" lrfp 0x%08x\n", fec->eth->tfifo_lrf_ptr);
+ printf(" lwfp 0x%08x\n", fec->eth->tfifo_lwf_ptr);
+ printf(" alarm 0x%08x\n", fec->eth->tfifo_alarm);
+ printf(" readptr 0x%08x\n", fec->eth->tfifo_rdptr);
+ printf(" writptr 0x%08x\n", fec->eth->tfifo_wrptr);
+ }
+}
+
+static void rfifo_print(mpc5xxx_fec_priv *fec)
+{
+ uint16 phyAddr = 0;
+ uint16 phyStatus;
+
+ if ((fec->eth->rfifo_lrf_ptr != fec->eth->rfifo_lwf_ptr)
+ || (fec->eth->rfifo_rdptr != fec->eth->rfifo_wrptr)) {
+
+ miiphy_read(phyAddr, 0x1, &phyStatus);
+ printf("\nphyStatus: 0x%04x\n", phyStatus);
+ printf("ecntrl: 0x%08x\n", fec->eth->ecntrl);
+ printf("ievent: 0x%08x\n", fec->eth->ievent);
+ printf("x_status: 0x%08x\n", fec->eth->x_status);
+ printf("rfifo: status 0x%08x\n", fec->eth->rfifo_status);
+
+ printf(" control 0x%08x\n", fec->eth->rfifo_cntrl);
+ printf(" lrfp 0x%08x\n", fec->eth->rfifo_lrf_ptr);
+ printf(" lwfp 0x%08x\n", fec->eth->rfifo_lwf_ptr);
+ printf(" alarm 0x%08x\n", fec->eth->rfifo_alarm);
+ printf(" readptr 0x%08x\n", fec->eth->rfifo_rdptr);
+ printf(" writptr 0x%08x\n", fec->eth->rfifo_wrptr);
+ }
+}
+#endif /* DEBUG */
+
+/********************************************************************/
+
+static int mpc5xxx_fec_send(struct eth_device *dev, volatile void *eth_data,
+ int data_length)
+{
+ /*
+ * This routine transmits one frame. This routine only accepts
+ * 6-byte Ethernet addresses.
+ */
+ mpc5xxx_fec_priv *fec = (mpc5xxx_fec_priv *)dev->priv;
+ FEC_TBD *pTbd;
+
+#if (DEBUG & 0x20)
+ printf("tbd status: 0x%04x\n", fec->tbdBase[0].status);
+ tfifo_print(fec);
+#endif
+
+ /*
+ * Clear Tx BD ring at first
+ */
+ mpc5xxx_fec_tbd_scrub(fec);
+
+ /*
+ * Check for valid length of data.
+ */
+ if ((data_length > 1500) || (data_length <= 0)) {
+ return -1;
+ }
+
+ /*
+ * Check the number of vacant TxBDs.
+ */
+ if (fec->cleanTbdNum < 1) {
+#if (DEBUG & 0x20)
+ printf("No available TxBDs ...\n");
+#endif
+ return -1;
+ }
+
+ /*
+ * Get the first TxBD to send the mac header
+ */
+ pTbd = &fec->tbdBase[fec->tbdIndex];
+ pTbd->dataLength = data_length;
+ pTbd->dataPointer = (uint32)eth_data;
+ pTbd->status |= FEC_TBD_READY;
+ fec->tbdIndex = (fec->tbdIndex + 1) % FEC_TBD_NUM;
+
+#if (DEBUG & 0x100)
+ printf("SDMA_TASK_ENABLE, fec->tbdIndex = %d \n", fec->tbdIndex);
+#endif
+
+ /*
+ * Kick the MII i/f
+ */
+ if (fec->xcv_type != SEVENWIRE) {
+ uint16 phyStatus;
+ miiphy_read(0, 0x1, &phyStatus);
+ }
+
+ /*
+ * Enable SmartDMA transmit task
+ */
+
+#if (DEBUG & 0x20)
+ tfifo_print(fec);
+#endif
+ SDMA_TASK_ENABLE (FEC_XMIT_TASK_NO);
+#if (DEBUG & 0x20)
+ tfifo_print(fec);
+#endif
+#if (DEBUG & 0x8)
+ printf( "+" );
+#endif
+
+ fec->cleanTbdNum -= 1;
+
+#if (DEBUG & 0x129) && (DEBUG & 0x80000000)
+ printf ("smartDMA ethernet Tx task enabled\n");
+#endif
+ /*
+ * wait until frame is sent .
+ */
+ while (pTbd->status & FEC_TBD_READY) {
+ udelay(10);
+#if (DEBUG & 0x8)
+ printf ("TDB status = %04x\n", pTbd->status);
+#endif
+ }
+
+ return 0;
+}
+
+
+/********************************************************************/
+static int mpc5xxx_fec_recv(struct eth_device *dev)
+{
+ /*
+ * This command pulls one frame from the card
+ */
+ mpc5xxx_fec_priv *fec = (mpc5xxx_fec_priv *)dev->priv;
+ FEC_RBD *pRbd = &fec->rbdBase[fec->rbdIndex];
+ unsigned long ievent;
+ int frame_length;
+ char *frame;
+
+#if (DEBUG & 0x1)
+ printf ("mpc5xxx_fec_recv %d Start...\n", fec->rbdIndex);
+#endif
+#if (DEBUG & 0x8)
+ printf( "-" );
+#endif
+
+ /*
+ * Check if any critical events have happened
+ */
+ ievent = fec->eth->ievent;
+ fec->eth->ievent = ievent;
+ if (ievent & 0x20060000) {
+ /* BABT, Rx/Tx FIFO errors */
+ mpc5xxx_fec_halt(dev);
+ mpc5xxx_fec_init(dev, NULL);
+ return 0;
+ }
+ if (ievent & 0x80000000) {
+ /* Heartbeat error */
+ fec->eth->x_cntrl |= 0x00000001;
+ }
+ if (ievent & 0x10000000) {
+ /* Graceful stop complete */
+ if (fec->eth->x_cntrl & 0x00000001) {
+ mpc5xxx_fec_halt(dev);
+ fec->eth->x_cntrl &= ~0x00000001;
+ mpc5xxx_fec_init(dev, NULL);
+ }
+ }
+
+ /*
+ * Do we have data in Rx FIFO?
+ */
+ if ((pRbd->status & FEC_RBD_EMPTY) || !(pRbd->status & FEC_RBD_LAST)){
+ return 0;
+ }
+
+ /*
+ * Pass the packet up only if reception was Ok
+ */
+ if ((pRbd->dataLength <= 14) || (pRbd->status & FEC_RBD_ERR)) {
+ mpc5xxx_fec_rbd_clean(fec, pRbd);
+#if (DEBUG & 0x8)
+ printf( "X0" );
+#endif
+ return 0;
+ }
+
+ /*
+ * Get buffer address and size
+ */
+ frame = (char *)pRbd->dataPointer;
+ frame_length = pRbd->dataLength;
+
+ /*
+ * Pass the buffer to upper layers
+ */
+ NetReceive(frame, frame_length);
+
+ /*
+ * Reset buffer descriptor as empty
+ */
+ mpc5xxx_fec_rbd_clean(fec, pRbd);
+
+ return frame_length;
+}
+
+
+/********************************************************************/
+int mpc5xxx_fec_initialize(bd_t * bis)
+{
+ mpc5xxx_fec_priv *fec;
+ struct eth_device *dev;
+
+ fec = (mpc5xxx_fec_priv *)malloc(sizeof(*fec));
+ dev = (struct eth_device *)malloc(sizeof(*dev));
+
+ fec->eth = (ethernet_regs *)MPC5XXX_FEC;
+ fec->tbdBase = (FEC_TBD *)FEC_BD_BASE;
+ fec->rbdBase = (FEC_RBD *)(FEC_BD_BASE + FEC_TBD_NUM * sizeof(FEC_TBD));
+#ifdef CONFIG_ICECUBE
+ fec->xcv_type = MII100;
+#endif
+
+ dev->priv = (void *)fec;
+ dev->iobase = MPC5XXX_FEC;
+ dev->init = mpc5xxx_fec_init;
+ dev->halt = mpc5xxx_fec_halt;
+ dev->send = mpc5xxx_fec_send;
+ dev->recv = mpc5xxx_fec_recv;
+
+ eth_register(dev);
+
+ return 1;
+}
+
+/* MII-interface related functions */
+/********************************************************************/
+int miiphy_read(uint8 phyAddr, uint8 regAddr, uint16 * retVal)
+{
+ ethernet_regs *eth = (ethernet_regs *)MPC5XXX_FEC;
+ uint32 reg; /* convenient holder for the PHY register */
+ uint32 phy; /* convenient holder for the PHY */
+ int timeout = 0xffff;
+
+ /*
+ * reading from any PHY's register is done by properly
+ * programming the FEC's MII data register.
+ */
+ reg = regAddr << FEC_MII_DATA_RA_SHIFT;
+ phy = phyAddr << FEC_MII_DATA_PA_SHIFT;
+
+ eth->mii_data = (FEC_MII_DATA_ST | FEC_MII_DATA_OP_RD | FEC_MII_DATA_TA | phy | reg);
+
+ /*
+ * wait for the related interrupt
+ */
+ while ((timeout--) && (!(eth->ievent & 0x00800000))) ;
+
+ if (timeout == 0) {
+#if (DEBUG & 0x2)
+ printf ("Read MDIO failed...\n");
+#endif
+ return -1;
+ }
+
+ /*
+ * clear mii interrupt bit
+ */
+ eth->ievent = 0x00800000;
+
+ /*
+ * it's now safe to read the PHY's register
+ */
+ *retVal = (uint16) eth->mii_data;
+
+ return 0;
+}
+
+/********************************************************************/
+int miiphy_write(uint8 phyAddr, uint8 regAddr, uint16 data)
+{
+ ethernet_regs *eth = (ethernet_regs *)MPC5XXX_FEC;
+ uint32 reg; /* convenient holder for the PHY register */
+ uint32 phy; /* convenient holder for the PHY */
+ int timeout = 0xffff;
+
+ reg = regAddr << FEC_MII_DATA_RA_SHIFT;
+ phy = phyAddr << FEC_MII_DATA_PA_SHIFT;
+
+ eth->mii_data = (FEC_MII_DATA_ST | FEC_MII_DATA_OP_WR |
+ FEC_MII_DATA_TA | phy | reg | data);
+
+ /*
+ * wait for the MII interrupt
+ */
+ while ((timeout--) && (!(eth->ievent & 0x00800000))) ;
+
+ if (timeout == 0) {
+#if (DEBUG & 0x2)
+ printf ("Write MDIO failed...\n");
+#endif
+ return -1;
+ }
+
+ /*
+ * clear MII interrupt bit
+ */
+ eth->ievent = 0x00800000;
+
+ return 0;
+}
+
+#if (DEBUG & 0x40)
+static uint32 local_crc32(char *string, unsigned int crc_value, int len)
+{
+ int i;
+ char c;
+ unsigned int crc, count;
+
+ /*
+ * crc32 algorithm
+ */
+ /*
+ * crc = 0xffffffff; * The initialized value should be 0xffffffff
+ */
+ crc = crc_value;
+
+ for (i = len; --i >= 0;) {
+ c = *string++;
+ for (count = 0; count < 8; count++) {
+ if ((c & 0x01) ^ (crc & 0x01)) {
+ crc >>= 1;
+ crc = crc ^ 0xedb88320;
+ } else {
+ crc >>= 1;
+ }
+ c >>= 1;
+ }
+ }
+
+ /*
+ * In big endian system, do byte swaping for crc value
+ */
+ /**/ return crc;
+}
+#endif /* DEBUG */
+
+#endif /* CONFIG_MPC5XXX_FEC */
diff --git a/cpu/mpc5xxx/fec.h b/cpu/mpc5xxx/fec.h
new file mode 100644
index 00000000000..81756a5f6ac
--- /dev/null
+++ b/cpu/mpc5xxx/fec.h
@@ -0,0 +1,286 @@
+/*
+ * (C) Copyright 2003
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * This file is based on mpc4200fec.h
+ * (C) Copyright Motorola, Inc., 2000
+ *
+ * odin ethernet header file
+ */
+
+#ifndef __MPC5XXX_FEC_H
+#define __MPC5XXX_FEC_H
+
+#include <common.h>
+#include <mpc5xxx.h>
+#include "sdma.h"
+
+typedef unsigned long uint32;
+typedef unsigned short uint16;
+typedef unsigned char uint8;
+
+typedef struct ethernet_register_set {
+
+/* [10:2]addr = 00 */
+
+/* Control and status Registers (offset 000-1FF) */
+
+ volatile uint32 fec_id; /* MBAR_ETH + 0x000 */
+ volatile uint32 ievent; /* MBAR_ETH + 0x004 */
+ volatile uint32 imask; /* MBAR_ETH + 0x008 */
+
+ volatile uint32 RES0[1]; /* MBAR_ETH + 0x00C */
+ volatile uint32 r_des_active; /* MBAR_ETH + 0x010 */
+ volatile uint32 x_des_active; /* MBAR_ETH + 0x014 */
+ volatile uint32 r_des_active_cl; /* MBAR_ETH + 0x018 */
+ volatile uint32 x_des_active_cl; /* MBAR_ETH + 0x01C */
+ volatile uint32 ivent_set; /* MBAR_ETH + 0x020 */
+ volatile uint32 ecntrl; /* MBAR_ETH + 0x024 */
+
+ volatile uint32 RES1[6]; /* MBAR_ETH + 0x028-03C */
+ volatile uint32 mii_data; /* MBAR_ETH + 0x040 */
+ volatile uint32 mii_speed; /* MBAR_ETH + 0x044 */
+ volatile uint32 mii_status; /* MBAR_ETH + 0x048 */
+
+ volatile uint32 RES2[5]; /* MBAR_ETH + 0x04C-05C */
+ volatile uint32 mib_data; /* MBAR_ETH + 0x060 */
+ volatile uint32 mib_control; /* MBAR_ETH + 0x064 */
+
+ volatile uint32 RES3[6]; /* MBAR_ETH + 0x068-7C */
+ volatile uint32 r_activate; /* MBAR_ETH + 0x080 */
+ volatile uint32 r_cntrl; /* MBAR_ETH + 0x084 */
+ volatile uint32 r_hash; /* MBAR_ETH + 0x088 */
+ volatile uint32 r_data; /* MBAR_ETH + 0x08C */
+ volatile uint32 ar_done; /* MBAR_ETH + 0x090 */
+ volatile uint32 r_test; /* MBAR_ETH + 0x094 */
+ volatile uint32 r_mib; /* MBAR_ETH + 0x098 */
+ volatile uint32 r_da_low; /* MBAR_ETH + 0x09C */
+ volatile uint32 r_da_high; /* MBAR_ETH + 0x0A0 */
+
+ volatile uint32 RES4[7]; /* MBAR_ETH + 0x0A4-0BC */
+ volatile uint32 x_activate; /* MBAR_ETH + 0x0C0 */
+ volatile uint32 x_cntrl; /* MBAR_ETH + 0x0C4 */
+ volatile uint32 backoff; /* MBAR_ETH + 0x0C8 */
+ volatile uint32 x_data; /* MBAR_ETH + 0x0CC */
+ volatile uint32 x_status; /* MBAR_ETH + 0x0D0 */
+ volatile uint32 x_mib; /* MBAR_ETH + 0x0D4 */
+ volatile uint32 x_test; /* MBAR_ETH + 0x0D8 */
+ volatile uint32 fdxfc_da1; /* MBAR_ETH + 0x0DC */
+ volatile uint32 fdxfc_da2; /* MBAR_ETH + 0x0E0 */
+ volatile uint32 paddr1; /* MBAR_ETH + 0x0E4 */
+ volatile uint32 paddr2; /* MBAR_ETH + 0x0E8 */
+ volatile uint32 op_pause; /* MBAR_ETH + 0x0EC */
+
+ volatile uint32 RES5[4]; /* MBAR_ETH + 0x0F0-0FC */
+ volatile uint32 instr_reg; /* MBAR_ETH + 0x100 */
+ volatile uint32 context_reg; /* MBAR_ETH + 0x104 */
+ volatile uint32 test_cntrl; /* MBAR_ETH + 0x108 */
+ volatile uint32 acc_reg; /* MBAR_ETH + 0x10C */
+ volatile uint32 ones; /* MBAR_ETH + 0x110 */
+ volatile uint32 zeros; /* MBAR_ETH + 0x114 */
+ volatile uint32 iaddr1; /* MBAR_ETH + 0x118 */
+ volatile uint32 iaddr2; /* MBAR_ETH + 0x11C */
+ volatile uint32 gaddr1; /* MBAR_ETH + 0x120 */
+ volatile uint32 gaddr2; /* MBAR_ETH + 0x124 */
+ volatile uint32 random; /* MBAR_ETH + 0x128 */
+ volatile uint32 rand1; /* MBAR_ETH + 0x12C */
+ volatile uint32 tmp; /* MBAR_ETH + 0x130 */
+
+ volatile uint32 RES6[3]; /* MBAR_ETH + 0x134-13C */
+ volatile uint32 fifo_id; /* MBAR_ETH + 0x140 */
+ volatile uint32 x_wmrk; /* MBAR_ETH + 0x144 */
+ volatile uint32 fcntrl; /* MBAR_ETH + 0x148 */
+ volatile uint32 r_bound; /* MBAR_ETH + 0x14C */
+ volatile uint32 r_fstart; /* MBAR_ETH + 0x150 */
+ volatile uint32 r_count; /* MBAR_ETH + 0x154 */
+ volatile uint32 r_lag; /* MBAR_ETH + 0x158 */
+ volatile uint32 r_read; /* MBAR_ETH + 0x15C */
+ volatile uint32 r_write; /* MBAR_ETH + 0x160 */
+ volatile uint32 x_count; /* MBAR_ETH + 0x164 */
+ volatile uint32 x_lag; /* MBAR_ETH + 0x168 */
+ volatile uint32 x_retry; /* MBAR_ETH + 0x16C */
+ volatile uint32 x_write; /* MBAR_ETH + 0x170 */
+ volatile uint32 x_read; /* MBAR_ETH + 0x174 */
+
+ volatile uint32 RES7[2]; /* MBAR_ETH + 0x178-17C */
+ volatile uint32 fm_cntrl; /* MBAR_ETH + 0x180 */
+ volatile uint32 rfifo_data; /* MBAR_ETH + 0x184 */
+ volatile uint32 rfifo_status; /* MBAR_ETH + 0x188 */
+ volatile uint32 rfifo_cntrl; /* MBAR_ETH + 0x18C */
+ volatile uint32 rfifo_lrf_ptr; /* MBAR_ETH + 0x190 */
+ volatile uint32 rfifo_lwf_ptr; /* MBAR_ETH + 0x194 */
+ volatile uint32 rfifo_alarm; /* MBAR_ETH + 0x198 */
+ volatile uint32 rfifo_rdptr; /* MBAR_ETH + 0x19C */
+ volatile uint32 rfifo_wrptr; /* MBAR_ETH + 0x1A0 */
+ volatile uint32 tfifo_data; /* MBAR_ETH + 0x1A4 */
+ volatile uint32 tfifo_status; /* MBAR_ETH + 0x1A8 */
+ volatile uint32 tfifo_cntrl; /* MBAR_ETH + 0x1AC */
+ volatile uint32 tfifo_lrf_ptr; /* MBAR_ETH + 0x1B0 */
+ volatile uint32 tfifo_lwf_ptr; /* MBAR_ETH + 0x1B4 */
+ volatile uint32 tfifo_alarm; /* MBAR_ETH + 0x1B8 */
+ volatile uint32 tfifo_rdptr; /* MBAR_ETH + 0x1BC */
+ volatile uint32 tfifo_wrptr; /* MBAR_ETH + 0x1C0 */
+
+ volatile uint32 reset_cntrl; /* MBAR_ETH + 0x1C4 */
+ volatile uint32 xmit_fsm; /* MBAR_ETH + 0x1C8 */
+
+ volatile uint32 RES8[3]; /* MBAR_ETH + 0x1CC-1D4 */
+ volatile uint32 rdes_data0; /* MBAR_ETH + 0x1D8 */
+ volatile uint32 rdes_data1; /* MBAR_ETH + 0x1DC */
+ volatile uint32 r_length; /* MBAR_ETH + 0x1E0 */
+ volatile uint32 x_length; /* MBAR_ETH + 0x1E4 */
+ volatile uint32 x_addr; /* MBAR_ETH + 0x1E8 */
+ volatile uint32 cdes_data; /* MBAR_ETH + 0x1EC */
+ volatile uint32 status; /* MBAR_ETH + 0x1F0 */
+ volatile uint32 dma_control; /* MBAR_ETH + 0x1F4 */
+ volatile uint32 des_cmnd; /* MBAR_ETH + 0x1F8 */
+ volatile uint32 data; /* MBAR_ETH + 0x1FC */
+
+/* MIB COUNTERS (Offset 200-2FF) */
+
+ volatile uint32 rmon_t_drop; /* MBAR_ETH + 0x200 */
+ volatile uint32 rmon_t_packets; /* MBAR_ETH + 0x204 */
+ volatile uint32 rmon_t_bc_pkt; /* MBAR_ETH + 0x208 */
+ volatile uint32 rmon_t_mc_pkt; /* MBAR_ETH + 0x20C */
+ volatile uint32 rmon_t_crc_align; /* MBAR_ETH + 0x210 */
+ volatile uint32 rmon_t_undersize; /* MBAR_ETH + 0x214 */
+ volatile uint32 rmon_t_oversize; /* MBAR_ETH + 0x218 */
+ volatile uint32 rmon_t_frag; /* MBAR_ETH + 0x21C */
+ volatile uint32 rmon_t_jab; /* MBAR_ETH + 0x220 */
+ volatile uint32 rmon_t_col; /* MBAR_ETH + 0x224 */
+ volatile uint32 rmon_t_p64; /* MBAR_ETH + 0x228 */
+ volatile uint32 rmon_t_p65to127; /* MBAR_ETH + 0x22C */
+ volatile uint32 rmon_t_p128to255; /* MBAR_ETH + 0x230 */
+ volatile uint32 rmon_t_p256to511; /* MBAR_ETH + 0x234 */
+ volatile uint32 rmon_t_p512to1023; /* MBAR_ETH + 0x238 */
+ volatile uint32 rmon_t_p1024to2047; /* MBAR_ETH + 0x23C */
+ volatile uint32 rmon_t_p_gte2048; /* MBAR_ETH + 0x240 */
+ volatile uint32 rmon_t_octets; /* MBAR_ETH + 0x244 */
+ volatile uint32 ieee_t_drop; /* MBAR_ETH + 0x248 */
+ volatile uint32 ieee_t_frame_ok; /* MBAR_ETH + 0x24C */
+ volatile uint32 ieee_t_1col; /* MBAR_ETH + 0x250 */
+ volatile uint32 ieee_t_mcol; /* MBAR_ETH + 0x254 */
+ volatile uint32 ieee_t_def; /* MBAR_ETH + 0x258 */
+ volatile uint32 ieee_t_lcol; /* MBAR_ETH + 0x25C */
+ volatile uint32 ieee_t_excol; /* MBAR_ETH + 0x260 */
+ volatile uint32 ieee_t_macerr; /* MBAR_ETH + 0x264 */
+ volatile uint32 ieee_t_cserr; /* MBAR_ETH + 0x268 */
+ volatile uint32 ieee_t_sqe; /* MBAR_ETH + 0x26C */
+ volatile uint32 t_fdxfc; /* MBAR_ETH + 0x270 */
+ volatile uint32 ieee_t_octets_ok; /* MBAR_ETH + 0x274 */
+
+ volatile uint32 RES9[2]; /* MBAR_ETH + 0x278-27C */
+ volatile uint32 rmon_r_drop; /* MBAR_ETH + 0x280 */
+ volatile uint32 rmon_r_packets; /* MBAR_ETH + 0x284 */
+ volatile uint32 rmon_r_bc_pkt; /* MBAR_ETH + 0x288 */
+ volatile uint32 rmon_r_mc_pkt; /* MBAR_ETH + 0x28C */
+ volatile uint32 rmon_r_crc_align; /* MBAR_ETH + 0x290 */
+ volatile uint32 rmon_r_undersize; /* MBAR_ETH + 0x294 */
+ volatile uint32 rmon_r_oversize; /* MBAR_ETH + 0x298 */
+ volatile uint32 rmon_r_frag; /* MBAR_ETH + 0x29C */
+ volatile uint32 rmon_r_jab; /* MBAR_ETH + 0x2A0 */
+
+ volatile uint32 rmon_r_resvd_0; /* MBAR_ETH + 0x2A4 */
+
+ volatile uint32 rmon_r_p64; /* MBAR_ETH + 0x2A8 */
+ volatile uint32 rmon_r_p65to127; /* MBAR_ETH + 0x2AC */
+ volatile uint32 rmon_r_p128to255; /* MBAR_ETH + 0x2B0 */
+ volatile uint32 rmon_r_p256to511; /* MBAR_ETH + 0x2B4 */
+ volatile uint32 rmon_r_p512to1023; /* MBAR_ETH + 0x2B8 */
+ volatile uint32 rmon_r_p1024to2047; /* MBAR_ETH + 0x2BC */
+ volatile uint32 rmon_r_p_gte2048; /* MBAR_ETH + 0x2C0 */
+ volatile uint32 rmon_r_octets; /* MBAR_ETH + 0x2C4 */
+ volatile uint32 ieee_r_drop; /* MBAR_ETH + 0x2C8 */
+ volatile uint32 ieee_r_frame_ok; /* MBAR_ETH + 0x2CC */
+ volatile uint32 ieee_r_crc; /* MBAR_ETH + 0x2D0 */
+ volatile uint32 ieee_r_align; /* MBAR_ETH + 0x2D4 */
+ volatile uint32 r_macerr; /* MBAR_ETH + 0x2D8 */
+ volatile uint32 r_fdxfc; /* MBAR_ETH + 0x2DC */
+ volatile uint32 ieee_r_octets_ok; /* MBAR_ETH + 0x2E0 */
+
+ volatile uint32 RES10[6]; /* MBAR_ETH + 0x2E4-2FC */
+
+ volatile uint32 RES11[64]; /* MBAR_ETH + 0x300-3FF */
+} ethernet_regs;
+
+/* Receive & Transmit Buffer Descriptor definitions */
+typedef struct BufferDescriptor {
+ uint16 status;
+ uint16 dataLength;
+ uint32 dataPointer;
+} FEC_RBD;
+typedef struct {
+ uint16 status;
+ uint16 dataLength;
+ uint32 dataPointer;
+} FEC_TBD;
+
+/* private structure */
+typedef enum {
+ SEVENWIRE, /* 7-wire */
+ MII10, /* MII 10Mbps */
+ MII100 /* MII 100Mbps */
+} xceiver_type;
+
+typedef struct {
+ ethernet_regs *eth;
+ xceiver_type xcv_type; /* transceiver type */
+ FEC_RBD *rbdBase; /* RBD ring */
+ FEC_TBD *tbdBase; /* TBD ring */
+ uint16 rbdIndex; /* next receive BD to read */
+ uint16 tbdIndex; /* next transmit BD to send */
+ uint16 usedTbdIndex; /* next transmit BD to clean */
+ uint16 cleanTbdNum; /* the number of available transmit BDs */
+} mpc5xxx_fec_priv;
+
+/* Ethernet parameter area */
+#define FEC_TBD_BASE (FEC_PARAM_BASE + 0x00)
+#define FEC_TBD_NEXT (FEC_PARAM_BASE + 0x04)
+#define FEC_RBD_BASE (FEC_PARAM_BASE + 0x08)
+#define FEC_RBD_NEXT (FEC_PARAM_BASE + 0x0c)
+
+/* BD Numer definitions */
+#define FEC_TBD_NUM 48 /* The user can adjust this value */
+#define FEC_RBD_NUM 32 /* The user can adjust this value */
+
+/* packet size limit */
+#define FEC_MAX_PKT_SIZE 1536
+
+/* RBD bits definitions */
+#define FEC_RBD_EMPTY 0x8000 /* Buffer is empty */
+#define FEC_RBD_WRAP 0x2000 /* Last BD in ring */
+#define FEC_RBD_INT 0x1000 /* Interrupt */
+#define FEC_RBD_LAST 0x0800 /* Buffer is last in frame(useless) */
+#define FEC_RBD_MISS 0x0100 /* Miss bit for prom mode */
+#define FEC_RBD_BC 0x0080 /* The received frame is broadcast frame */
+#define FEC_RBD_MC 0x0040 /* The received frame is multicast frame */
+#define FEC_RBD_LG 0x0020 /* Frame length violation */
+#define FEC_RBD_NO 0x0010 /* Nonoctet align frame */
+#define FEC_RBD_SH 0x0008 /* Short frame */
+#define FEC_RBD_CR 0x0004 /* CRC error */
+#define FEC_RBD_OV 0x0002 /* Receive FIFO overrun */
+#define FEC_RBD_TR 0x0001 /* Frame is truncated */
+#define FEC_RBD_ERR (FEC_RBD_LG | FEC_RBD_NO | FEC_RBD_CR | \
+ FEC_RBD_OV | FEC_RBD_TR)
+
+/* TBD bits definitions */
+#define FEC_TBD_READY 0x8000 /* Buffer is ready */
+#define FEC_TBD_WRAP 0x2000 /* Last BD in ring */
+#define FEC_TBD_INT 0x1000 /* Interrupt */
+#define FEC_TBD_LAST 0x0800 /* Buffer is last in frame */
+#define FEC_TBD_TC 0x0400 /* Transmit the CRC */
+#define FEC_TBD_ABC 0x0200 /* Append bad CRC */
+
+/* MII-related definitios */
+#define FEC_MII_DATA_ST 0x40000000 /* Start of frame delimiter */
+#define FEC_MII_DATA_OP_RD 0x20000000 /* Perform a read operation */
+#define FEC_MII_DATA_OP_WR 0x10000000 /* Perform a write operation */
+#define FEC_MII_DATA_PA_MSK 0x0f800000 /* PHY Address field mask */
+#define FEC_MII_DATA_RA_MSK 0x007c0000 /* PHY Register field mask */
+#define FEC_MII_DATA_TA 0x00020000 /* Turnaround */
+#define FEC_MII_DATA_DATAMSK 0x0000ffff /* PHY data field */
+
+#define FEC_MII_DATA_RA_SHIFT 18 /* MII Register address bits */
+#define FEC_MII_DATA_PA_SHIFT 23 /* MII PHY address bits */
+
+#endif /* __MPC5XXX_FEC_H */
diff --git a/cpu/mpc5xxx/firmware_sc_task.impl.S b/cpu/mpc5xxx/firmware_sc_task.impl.S
new file mode 100644
index 00000000000..b668ee5cf8d
--- /dev/null
+++ b/cpu/mpc5xxx/firmware_sc_task.impl.S
@@ -0,0 +1,364 @@
+/*
+ * Copyright (C) 2001, Software Center, Motorola China.
+ *
+ * This file contains microcode for the FEC controller of the MGT5100 CPU.
+ */
+
+#include <config.h>
+
+#if defined(CONFIG_MGT5100)
+
+/* sas/sccg, gas target */
+.section smartdmaInitData,"aw",@progbits /* Initialized data for task variables */
+.section smartdmaTaskTable,"aw",@progbits /* Task tables */
+.globl taskTable
+taskTable:
+.globl scEthernetRecv_Entry
+scEthernetRecv_Entry: /* Task 0 */
+.long scEthernetRecv_TDT - taskTable /* Task 0 Descriptor Table */
+.long scEthernetRecv_TDT - taskTable + 0x000000a4
+.long scEthernetRecv_VarTab - taskTable /* Task 0 Variable Table */
+.long scEthernetRecv_FDT - taskTable + 0x03 /* Task 0 Function Descriptor Table & Flags */
+.long 0x00000000
+.long 0x00000000
+.long scEthernetRecv_CSave - taskTable /* Task 0 context save space */
+.long 0xf0000000
+.globl scEthernetXmit_Entry
+scEthernetXmit_Entry: /* Task 1 */
+.long scEthernetXmit_TDT - taskTable /* Task 1 Descriptor Table */
+.long scEthernetXmit_TDT - taskTable + 0x000000d0
+.long scEthernetXmit_VarTab - taskTable /* Task 1 Variable Table */
+.long scEthernetXmit_FDT - taskTable + 0x03 /* Task 1 Function Descriptor Table & Flags */
+.long 0x00000000
+.long 0x00000000
+.long scEthernetXmit_CSave - taskTable /* Task 1 context save space */
+.long 0xf0000000
+
+
+.globl scEthernetRecv_TDT
+scEthernetRecv_TDT: /* Task 0 Descriptor Table */
+.long 0xc4c50000 /* 0000: LCDEXT: idx0 = var9 + var10; idx0 once var0; idx0 += inc0 */
+.long 0x84c5e000 /* 0004: LCD: idx1 = var9 + var11; ; idx1 += inc0 */
+.long 0x10001f08 /* 0008: DRD1A: var7 = idx1; FN=0 MORE init=0 WS=0 RS=0 */
+.long 0x10000380 /* 000C: DRD1A: var0 = *idx0; FN=0 MORE init=0 WS=0 RS=0 */
+.long 0x00000f88 /* 0010: DRD1A: var3 = *idx1; FN=0 init=0 WS=0 RS=0 */
+.long 0x81980000 /* 0014: LCD: idx0 = var3; idx0 once var0; idx0 += inc0 */
+.long 0x10000780 /* 0018: DRD1A: var1 = *idx0; FN=0 MORE init=0 WS=0 RS=0 */
+.long 0x60000000 /* 001C: DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT init=0 WS=0 RS=0 */
+.long 0x010c504c /* 0020: DRD2B1: var4 = EU1(); EU1(var1,var12) */
+.long 0x82180349 /* 0024: LCD: idx0 = var4; idx0 != var13; idx0 += inc1 */
+.long 0x81c68004 /* 0028: LCD: idx1 = var3 + var13 + 4; idx1 once var0; idx1 += inc0 */
+.long 0x70000000 /* 002C: DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT MORE init=0 WS=0 RS=0 */
+.long 0x018c504e /* 0030: DRD2B1: var6 = EU1(); EU1(var1,var14) */
+.long 0x70000000 /* 0034: DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT MORE init=0 WS=0 RS=0 */
+.long 0x020c504f /* 0038: DRD2B1: var8 = EU1(); EU1(var1,var15) */
+.long 0x00000b88 /* 003C: DRD1A: var2 = *idx1; FN=0 init=0 WS=0 RS=0 */
+.long 0x8000d184 /* 0040: LCDEXT: idx1 = 0xf0003184; ; */
+.long 0xc6990452 /* 0044: LCDEXT: idx2 = var13; idx2 < var17; idx2 += inc2 */
+.long 0x81486010 /* 0048: LCD: idx3 = var2 + var16; ; idx3 += inc2 */
+.long 0x006acf88 /* 004C: DRD1A: *idx3 = *idx1; FN=0 init=3 WS=1 RS=1 */
+.long 0x8000d184 /* 0050: LCDEXT: idx1 = 0xf0003184; ; */
+.long 0x86810492 /* 0054: LCD: idx2 = var13, idx3 = var2; idx2 < var18; idx2 += inc2, idx3 += inc2 */
+.long 0x006acf88 /* 0058: DRD1A: *idx3 = *idx1; FN=0 init=3 WS=1 RS=1 */
+.long 0x8000d184 /* 005C: LCDEXT: idx1 = 0xf0003184; ; */
+.long 0x868184d2 /* 0060: LCD: idx2 = var13, idx3 = var3; idx2 < var19; idx2 += inc2, idx3 += inc2 */
+.long 0x000acf88 /* 0064: DRD1A: *idx3 = *idx1; FN=0 init=0 WS=1 RS=1 */
+.long 0xc318839b /* 0068: LCDEXT: idx1 = var6; idx1 == var14; idx1 += inc3 */
+.long 0x80190000 /* 006C: LCD: idx2 = var0; idx2 once var0; idx2 += inc0 */
+.long 0x04008468 /* 0070: DRD1A: idx1 = var13; FN=0 INT init=0 WS=0 RS=0 */
+.long 0xc4038358 /* 0074: LCDEXT: idx1 = var8, idx2 = var7; idx1 == var13; idx1 += inc3, idx2 += inc0 */
+.long 0x81c50000 /* 0078: LCD: idx3 = var3 + var10; idx3 once var0; idx3 += inc0 */
+.long 0x1000cb18 /* 007C: DRD1A: *idx2 = idx3; FN=0 MORE init=0 WS=0 RS=0 */
+.long 0x00000f18 /* 0080: DRD1A: var3 = idx3; FN=0 init=0 WS=0 RS=0 */
+.long 0xc4188364 /* 0084: LCDEXT: idx1 = var8; idx1 > var13; idx1 += inc4 */
+.long 0x83990000 /* 0088: LCD: idx2 = var7; idx2 once var0; idx2 += inc0 */
+.long 0x10000c00 /* 008C: DRD1A: var3 = var0; FN=0 MORE init=0 WS=0 RS=0 */
+.long 0x0000c800 /* 0090: DRD1A: *idx2 = var0; FN=0 init=0 WS=0 RS=0 */
+.long 0x81988000 /* 0094: LCD: idx1 = var3; idx1 once var0; idx1 += inc0 */
+.long 0x10000788 /* 0098: DRD1A: var1 = *idx1; FN=0 MORE init=0 WS=0 RS=0 */
+.long 0x60000000 /* 009C: DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT init=0 WS=0 RS=0 */
+.long 0x080c504c /* 00A0: DRD2B1: idx0 = EU1(); EU1(var1,var12) */
+.long 0x000001f8 /* 00A4(:0): NOP */
+
+
+.globl scEthernetXmit_TDT
+scEthernetXmit_TDT: /* Task 1 Descriptor Table */
+.long 0x80014800 /* 0000: LCDEXT: idx0 = 0xf0004800; ; */
+.long 0x85c60004 /* 0004: LCD: idx1 = var11 + var12 + 4; idx1 once var0; idx1 += inc0 */
+.long 0x10002308 /* 0008: DRD1A: var8 = idx1; FN=0 MORE init=0 WS=0 RS=0 */
+.long 0x10000f88 /* 000C: DRD1A: var3 = *idx1; FN=0 MORE init=0 WS=0 RS=0 */
+.long 0x00000380 /* 0010: DRD1A: var0 = *idx0; FN=0 init=0 WS=0 RS=0 */
+.long 0x81980000 /* 0014: LCD: idx0 = var3; idx0 once var0; idx0 += inc0 */
+.long 0x10000780 /* 0018: DRD1A: var1 = *idx0; FN=0 MORE init=0 WS=0 RS=0 */
+.long 0x60000000 /* 001C: DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT init=0 WS=0 RS=0 */
+.long 0x024c504d /* 0020: DRD2B1: var9 = EU1(); EU1(var1,var13) */
+.long 0x84980309 /* 0024: LCD: idx0 = var9; idx0 != var12; idx0 += inc1 */
+.long 0xc0004003 /* 0028: LCDEXT: idx1 = 0x00000003; ; */
+.long 0x81c60004 /* 002C: LCD: idx2 = var3 + var12 + 4; idx2 once var0; idx2 += inc0 */
+.long 0x70000000 /* 0030: DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT MORE init=0 WS=0 RS=0 */
+.long 0x010c504e /* 0034: DRD2B1: var4 = EU1(); EU1(var1,var14) */
+.long 0x70000000 /* 0038: DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT MORE init=0 WS=0 RS=0 */
+.long 0x014c504f /* 003C: DRD2B1: var5 = EU1(); EU1(var1,var15) */
+.long 0x70000000 /* 0040: DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT MORE init=0 WS=0 RS=0 */
+.long 0x028c5050 /* 0044: DRD2B1: var10 = EU1(); EU1(var1,var16) */
+.long 0x70000000 /* 0048: DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT MORE init=0 WS=0 RS=0 */
+.long 0x018c5051 /* 004C: DRD2B1: var6 = EU1(); EU1(var1,var17) */
+.long 0x10000b90 /* 0050: DRD1A: var2 = *idx2; FN=0 MORE init=0 WS=0 RS=0 */
+.long 0x60000000 /* 0054: DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT init=0 WS=0 RS=0 */
+.long 0x01cc50a1 /* 0058: DRD2B1: var7 = EU1(); EU1(var2,idx1) */
+.long 0xc2988312 /* 005C: LCDEXT: idx1 = var5; idx1 > var12; idx1 += inc2 */
+.long 0x83490000 /* 0060: LCD: idx2 = var6 + var18; idx2 once var0; idx2 += inc0 */
+.long 0x00001b10 /* 0064: DRD1A: var6 = idx2; FN=0 init=0 WS=0 RS=0 */
+.long 0x8000d1a4 /* 0068: LCDEXT: idx1 = 0xf00031a4; ; */
+.long 0x8301031c /* 006C: LCD: idx2 = var6, idx3 = var2; idx2 > var12; idx2 += inc3, idx3 += inc4 */
+.long 0x008ac798 /* 0070: DRD1A: *idx1 = *idx3; FN=0 init=4 WS=1 RS=1 */
+.long 0x8000d1a4 /* 0074: LCDEXT: idx1 = 0xf00031a4; ; */
+.long 0xc1430000 /* 0078: LCDEXT: idx2 = var2 + var6; idx2 once var0; idx2 += inc0 */
+.long 0x82998312 /* 007C: LCD: idx3 = var5; idx3 > var12; idx3 += inc2 */
+.long 0x088ac790 /* 0080: DRD1A: *idx1 = *idx2; FN=0 TFD init=4 WS=1 RS=1 */
+.long 0x81988000 /* 0084: LCD: idx1 = var3; idx1 once var0; idx1 += inc0 */
+.long 0x60000100 /* 0088: DRD2A: EU0=0 EU1=1 EU2=0 EU3=0 EXT init=0 WS=0 RS=0 */
+.long 0x0c4c5c4d /* 008C: DRD2B1: *idx1 = EU1(); EU1(*idx1,var13) */
+.long 0xc21883ad /* 0090: LCDEXT: idx1 = var4; idx1 == var14; idx1 += inc5 */
+.long 0x80190000 /* 0094: LCD: idx2 = var0; idx2 once var0; idx2 += inc0 */
+.long 0x04008460 /* 0098: DRD1A: idx1 = var12; FN=0 INT init=0 WS=0 RS=0 */
+.long 0xc4052305 /* 009C: LCDEXT: idx1 = var8, idx2 = var10; idx2 == var12; idx1 += inc0, idx2 += inc5 */
+.long 0x81c98000 /* 00A0: LCD: idx3 = var3 + var19; idx3 once var0; idx3 += inc0 */
+.long 0x1000c718 /* 00A4: DRD1A: *idx1 = idx3; FN=0 MORE init=0 WS=0 RS=0 */
+.long 0x00000f18 /* 00A8: DRD1A: var3 = idx3; FN=0 init=0 WS=0 RS=0 */
+.long 0xc4188000 /* 00AC: LCDEXT: idx1 = var8; idx1 once var0; idx1 += inc0 */
+.long 0x85190312 /* 00B0: LCD: idx2 = var10; idx2 > var12; idx2 += inc2 */
+.long 0x10000c00 /* 00B4: DRD1A: var3 = var0; FN=0 MORE init=0 WS=0 RS=0 */
+.long 0x1000c400 /* 00B8: DRD1A: *idx1 = var0; FN=0 MORE init=0 WS=0 RS=0 */
+.long 0x00008860 /* 00BC: DRD1A: idx2 = var12; FN=0 init=0 WS=0 RS=0 */
+.long 0x81988000 /* 00C0: LCD: idx1 = var3; idx1 once var0; idx1 += inc0 */
+.long 0x10000788 /* 00C4: DRD1A: var1 = *idx1; FN=0 MORE init=0 WS=0 RS=0 */
+.long 0x60000000 /* 00C8: DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT init=0 WS=0 RS=0 */
+.long 0x080c504d /* 00CC: DRD2B1: idx0 = EU1(); EU1(var1,var13) */
+.long 0x000001f8 /* 00D0(:0): NOP */
+
+.align 8
+
+.globl scEthernetRecv_VarTab
+scEthernetRecv_VarTab: /* Task 0 Variable Table */
+.long 0x00000000 /* var[0] */
+.long 0x00000000 /* var[1] */
+.long 0x00000000 /* var[2] */
+.long 0x00000000 /* var[3] */
+.long 0x00000000 /* var[4] */
+.long 0x00000000 /* var[5] */
+.long 0x00000000 /* var[6] */
+.long 0x00000000 /* var[7] */
+.long 0x00000000 /* var[8] */
+.long 0xf0004800 /* var[9] */
+.long 0x00000008 /* var[10] */
+.long 0x0000000c /* var[11] */
+.long 0x80000000 /* var[12] */
+.long 0x00000000 /* var[13] */
+.long 0x10000000 /* var[14] */
+.long 0x20000000 /* var[15] */
+.long 0x000005e4 /* var[16] */
+.long 0x0000000e /* var[17] */
+.long 0x000005e0 /* var[18] */
+.long 0x00000004 /* var[19] */
+.long 0x00000000 /* var[20] */
+.long 0x00000000 /* var[21] */
+.long 0x00000000 /* var[22] */
+.long 0x00000000 /* var[23] */
+.long 0x00000000 /* inc[0] */
+.long 0x60000000 /* inc[1] */
+.long 0x20000001 /* inc[2] */
+.long 0x80000000 /* inc[3] */
+.long 0x40000000 /* inc[4] */
+.long 0x00000000 /* inc[5] */
+.long 0x00000000 /* inc[6] */
+.long 0x00000000 /* inc[7] */
+
+.align 8
+
+.globl scEthernetXmit_VarTab
+scEthernetXmit_VarTab: /* Task 1 Variable Table */
+.long 0x00000000 /* var[0] */
+.long 0x00000000 /* var[1] */
+.long 0x00000000 /* var[2] */
+.long 0x00000000 /* var[3] */
+.long 0x00000000 /* var[4] */
+.long 0x00000000 /* var[5] */
+.long 0x00000000 /* var[6] */
+.long 0x00000000 /* var[7] */
+.long 0x00000000 /* var[8] */
+.long 0x00000000 /* var[9] */
+.long 0x00000000 /* var[10] */
+.long 0xf0004800 /* var[11] */
+.long 0x00000000 /* var[12] */
+.long 0x80000000 /* var[13] */
+.long 0x10000000 /* var[14] */
+.long 0x08000000 /* var[15] */
+.long 0x20000000 /* var[16] */
+.long 0x0000ffff /* var[17] */
+.long 0xffffffff /* var[18] */
+.long 0x00000008 /* var[19] */
+.long 0x00000000 /* var[20] */
+.long 0x00000000 /* var[21] */
+.long 0x00000000 /* var[22] */
+.long 0x00000000 /* var[23] */
+.long 0x00000000 /* inc[0] */
+.long 0x60000000 /* inc[1] */
+.long 0x40000000 /* inc[2] */
+.long 0x4000ffff /* inc[3] */
+.long 0xe0000001 /* inc[4] */
+.long 0x80000000 /* inc[5] */
+.long 0x00000000 /* inc[6] */
+.long 0x00000000 /* inc[7] */
+
+.align 8
+
+.globl scEthernetRecv_FDT
+scEthernetRecv_FDT: /* Task 0 Function Descriptor Table */
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x05800000 /* and(), EU# 1 */
+.long 0x05400000 /* andn(), EU# 1 */
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+
+.align 8
+
+.globl scEthernetXmit_FDT
+scEthernetXmit_FDT: /* Task 1 Function Descriptor Table */
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x05800000 /* and(), EU# 1 */
+.long 0x05400000 /* andn(), EU# 1 */
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+
+
+.align 8
+.globl scEthernetRecv_CSave
+scEthernetRecv_CSave: /* Task 0 context save space */
+.space 256, 0x0
+
+
+.align 8
+.globl scEthernetXmit_CSave
+scEthernetXmit_CSave: /* Task 1 context save space */
+.space 256, 0x0
+
+#endif /* CONFIG_MGT5100 */
diff --git a/cpu/mpc5xxx/firmware_sc_task_bestcomm.impl.S b/cpu/mpc5xxx/firmware_sc_task_bestcomm.impl.S
new file mode 100644
index 00000000000..1d83fe26d99
--- /dev/null
+++ b/cpu/mpc5xxx/firmware_sc_task_bestcomm.impl.S
@@ -0,0 +1,363 @@
+/*
+ * Copyright (C) 2001, Software Center, Motorola China.
+ *
+ * This file contains microcode for the FEC controller of the MPC5200 CPU.
+ */
+
+#include <config.h>
+
+#if defined(CONFIG_MPC5200)
+
+/* sas/sccg, gas target */
+.section smartdmaInitData,"aw",@progbits /* Initialized data for task variables */
+.section smartdmaTaskTable,"aw",@progbits /* Task tables */
+.align 9
+.globl taskTable
+taskTable:
+.globl scEthernetRecv_Entry
+scEthernetRecv_Entry: /* Task 0 */
+.long scEthernetRecv_TDT - taskTable /* Task 0 Descriptor Table */
+.long scEthernetRecv_TDT - taskTable + 0x000000a4
+.long scEthernetRecv_VarTab - taskTable /* Task 0 Variable Table */
+.long scEthernetRecv_FDT - taskTable + 0x03 /* Task 0 Function Descriptor Table & Flags */
+.long 0x00000000
+.long 0x00000000
+.long scEthernetRecv_CSave - taskTable /* Task 0 context save space */
+.long 0xf0000000
+.globl scEthernetXmit_Entry
+scEthernetXmit_Entry: /* Task 1 */
+.long scEthernetXmit_TDT - taskTable /* Task 1 Descriptor Table */
+.long scEthernetXmit_TDT - taskTable + 0x000000d0
+.long scEthernetXmit_VarTab - taskTable /* Task 1 Variable Table */
+.long scEthernetXmit_FDT - taskTable + 0x03 /* Task 1 Function Descriptor Table & Flags */
+.long 0x00000000
+.long 0x00000000
+.long scEthernetXmit_CSave - taskTable /* Task 1 context save space */
+.long 0xf0000000
+
+
+.globl scEthernetRecv_TDT
+scEthernetRecv_TDT: /* Task 0 Descriptor Table */
+.long 0xc4c50000 /* 0000: LCDEXT: idx0 = var9 + var10; idx0 once var0; idx0 += inc0 */
+.long 0x84c5e000 /* 0004: LCD: idx1 = var9 + var11; ; idx1 += inc0 */
+.long 0x10001f08 /* 0008: DRD1A: var7 = idx1; FN=0 MORE init=0 WS=0 RS=0 */
+.long 0x10000380 /* 000C: DRD1A: var0 = *idx0; FN=0 MORE init=0 WS=0 RS=0 */
+.long 0x00000f88 /* 0010: DRD1A: var3 = *idx1; FN=0 init=0 WS=0 RS=0 */
+.long 0x81980000 /* 0014: LCD: idx0 = var3; idx0 once var0; idx0 += inc0 */
+.long 0x10000780 /* 0018: DRD1A: var1 = *idx0; FN=0 MORE init=0 WS=0 RS=0 */
+.long 0x60000000 /* 001C: DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT init=0 WS=0 RS=0 */
+.long 0x010cf04c /* 0020: DRD2B1: var4 = EU3(); EU3(var1,var12) */
+.long 0x82180349 /* 0024: LCD: idx0 = var4; idx0 != var13; idx0 += inc1 */
+.long 0x81c68004 /* 0028: LCD: idx1 = var3 + var13 + 4; idx1 once var0; idx1 += inc0 */
+.long 0x70000000 /* 002C: DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT MORE init=0 WS=0 RS=0 */
+.long 0x018cf04e /* 0030: DRD2B1: var6 = EU3(); EU3(var1,var14) */
+.long 0x70000000 /* 0034: DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT MORE init=0 WS=0 RS=0 */
+.long 0x020cf04f /* 0038: DRD2B1: var8 = EU3(); EU3(var1,var15) */
+.long 0x00000b88 /* 003C: DRD1A: var2 = *idx1; FN=0 init=0 WS=0 RS=0 */
+.long 0x8000d184 /* 0040: LCDEXT: idx1 = 0xf0003184; ; */
+.long 0xc6990452 /* 0044: LCDEXT: idx2 = var13; idx2 < var17; idx2 += inc2 */
+.long 0x81486010 /* 0048: LCD: idx3 = var2 + var16; ; idx3 += inc2 */
+.long 0x006acf88 /* 004C: DRD1A: *idx3 = *idx1; FN=0 init=3 WS=1 RS=1 */
+.long 0x8000d184 /* 0050: LCDEXT: idx1 = 0xf0003184; ; */
+.long 0x86810492 /* 0054: LCD: idx2 = var13, idx3 = var2; idx2 < var18; idx2 += inc2, idx3 += inc2 */
+.long 0x006acf88 /* 0058: DRD1A: *idx3 = *idx1; FN=0 init=3 WS=1 RS=1 */
+.long 0x8000d184 /* 005C: LCDEXT: idx1 = 0xf0003184; ; */
+.long 0x868184d2 /* 0060: LCD: idx2 = var13, idx3 = var3; idx2 < var19; idx2 += inc2, idx3 += inc2 */
+.long 0x000acf88 /* 0064: DRD1A: *idx3 = *idx1; FN=0 init=0 WS=1 RS=1 */
+.long 0xc318839b /* 0068: LCDEXT: idx1 = var6; idx1 == var14; idx1 += inc3 */
+.long 0x80190000 /* 006C: LCD: idx2 = var0; idx2 once var0; idx2 += inc0 */
+.long 0x04008468 /* 0070: DRD1A: idx1 = var13; FN=0 INT init=0 WS=0 RS=0 */
+.long 0xc4038358 /* 0074: LCDEXT: idx1 = var8, idx2 = var7; idx1 == var13; idx1 += inc3, idx2 += inc0 */
+.long 0x81c50000 /* 0078: LCD: idx3 = var3 + var10; idx3 once var0; idx3 += inc0 */
+.long 0x1000cb18 /* 007C: DRD1A: *idx2 = idx3; FN=0 MORE init=0 WS=0 RS=0 */
+.long 0x00000f18 /* 0080: DRD1A: var3 = idx3; FN=0 init=0 WS=0 RS=0 */
+.long 0xc4188364 /* 0084: LCDEXT: idx1 = var8; idx1 > var13; idx1 += inc4 */
+.long 0x83990000 /* 0088: LCD: idx2 = var7; idx2 once var0; idx2 += inc0 */
+.long 0x10000c00 /* 008C: DRD1A: var3 = var0; FN=0 MORE init=0 WS=0 RS=0 */
+.long 0x0000c800 /* 0090: DRD1A: *idx2 = var0; FN=0 init=0 WS=0 RS=0 */
+.long 0x81988000 /* 0094: LCD: idx1 = var3; idx1 once var0; idx1 += inc0 */
+.long 0x10000788 /* 0098: DRD1A: var1 = *idx1; FN=0 MORE init=0 WS=0 RS=0 */
+.long 0x60000000 /* 009C: DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT init=0 WS=0 RS=0 */
+.long 0x080cf04c /* 00A0: DRD2B1: idx0 = EU3(); EU3(var1,var12) */
+.long 0x000001f8 /* 00A4(:0): NOP */
+
+
+.globl scEthernetXmit_TDT
+scEthernetXmit_TDT: /* Task 1 Descriptor Table */
+.long 0x80024800 /* 0000: LCDEXT: idx0 = 0xf0008800; ; */
+.long 0x85c60004 /* 0004: LCD: idx1 = var11 + var12 + 4; idx1 once var0; idx1 += inc0 */
+.long 0x10002308 /* 0008: DRD1A: var8 = idx1; FN=0 MORE init=0 WS=0 RS=0 */
+.long 0x10000f88 /* 000C: DRD1A: var3 = *idx1; FN=0 MORE init=0 WS=0 RS=0 */
+.long 0x00000380 /* 0010: DRD1A: var0 = *idx0; FN=0 init=0 WS=0 RS=0 */
+.long 0x81980000 /* 0014: LCD: idx0 = var3; idx0 once var0; idx0 += inc0 */
+.long 0x10000780 /* 0018: DRD1A: var1 = *idx0; FN=0 MORE init=0 WS=0 RS=0 */
+.long 0x60000000 /* 001C: DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT init=0 WS=0 RS=0 */
+.long 0x024cf04d /* 0020: DRD2B1: var9 = EU3(); EU3(var1,var13) */
+.long 0x84980309 /* 0024: LCD: idx0 = var9; idx0 != var12; idx0 += inc1 */
+.long 0xc0004003 /* 0028: LCDEXT: idx1 = 0x00000003; ; */
+.long 0x81c60004 /* 002C: LCD: idx2 = var3 + var12 + 4; idx2 once var0; idx2 += inc0 */
+.long 0x70000000 /* 0030: DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT MORE init=0 WS=0 RS=0 */
+.long 0x010cf04e /* 0034: DRD2B1: var4 = EU3(); EU3(var1,var14) */
+.long 0x70000000 /* 0038: DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT MORE init=0 WS=0 RS=0 */
+.long 0x014cf04f /* 003C: DRD2B1: var5 = EU3(); EU3(var1,var15) */
+.long 0x70000000 /* 0040: DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT MORE init=0 WS=0 RS=0 */
+.long 0x028cf050 /* 0044: DRD2B1: var10 = EU3(); EU3(var1,var16) */
+.long 0x70000000 /* 0048: DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT MORE init=0 WS=0 RS=0 */
+.long 0x018cf051 /* 004C: DRD2B1: var6 = EU3(); EU3(var1,var17) */
+.long 0x10000b90 /* 0050: DRD1A: var2 = *idx2; FN=0 MORE init=0 WS=0 RS=0 */
+.long 0x60000000 /* 0054: DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT init=0 WS=0 RS=0 */
+.long 0x01ccf0a1 /* 0058: DRD2B1: var7 = EU3(); EU3(var2,idx1) */
+.long 0xc2988312 /* 005C: LCDEXT: idx1 = var5; idx1 > var12; idx1 += inc2 */
+.long 0x83490000 /* 0060: LCD: idx2 = var6 + var18; idx2 once var0; idx2 += inc0 */
+.long 0x00001b10 /* 0064: DRD1A: var6 = idx2; FN=0 init=0 WS=0 RS=0 */
+.long 0x8000d1a4 /* 0068: LCDEXT: idx1 = 0xf00031a4; ; */
+.long 0x8301031c /* 006C: LCD: idx2 = var6, idx3 = var2; idx2 > var12; idx2 += inc3, idx3 += inc4 */
+.long 0x008ac798 /* 0070: DRD1A: *idx1 = *idx3; FN=0 init=4 WS=1 RS=1 */
+.long 0x8000d1a4 /* 0074: LCDEXT: idx1 = 0xf00031a4; ; */
+.long 0xc1430000 /* 0078: LCDEXT: idx2 = var2 + var6; idx2 once var0; idx2 += inc0 */
+.long 0x82998312 /* 007C: LCD: idx3 = var5; idx3 > var12; idx3 += inc2 */
+.long 0x088ac790 /* 0080: DRD1A: *idx1 = *idx2; FN=0 TFD init=4 WS=1 RS=1 */
+.long 0x81988000 /* 0084: LCD: idx1 = var3; idx1 once var0; idx1 += inc0 */
+.long 0x60000001 /* 0088: DRD2A: EU0=0 EU1=0 EU2=0 EU3=1 EXT init=0 WS=0 RS=0 */
+.long 0x0c4cfc4d /* 008C: DRD2B1: *idx1 = EU3(); EU3(*idx1,var13) */
+.long 0xc21883ad /* 0090: LCDEXT: idx1 = var4; idx1 == var14; idx1 += inc5 */
+.long 0x80190000 /* 0094: LCD: idx2 = var0; idx2 once var0; idx2 += inc0 */
+.long 0x04008460 /* 0098: DRD1A: idx1 = var12; FN=0 INT init=0 WS=0 RS=0 */
+.long 0xc4052305 /* 009C: LCDEXT: idx1 = var8, idx2 = var10; idx2 == var12; idx1 += inc0, idx2 += inc5 */
+.long 0x81c98000 /* 00A0: LCD: idx3 = var3 + var19; idx3 once var0; idx3 += inc0 */
+.long 0x1000c718 /* 00A4: DRD1A: *idx1 = idx3; FN=0 MORE init=0 WS=0 RS=0 */
+.long 0x00000f18 /* 00A8: DRD1A: var3 = idx3; FN=0 init=0 WS=0 RS=0 */
+.long 0xc4188000 /* 00AC: LCDEXT: idx1 = var8; idx1 once var0; idx1 += inc0 */
+.long 0x85190312 /* 00B0: LCD: idx2 = var10; idx2 > var12; idx2 += inc2 */
+.long 0x10000c00 /* 00B4: DRD1A: var3 = var0; FN=0 MORE init=0 WS=0 RS=0 */
+.long 0x1000c400 /* 00B8: DRD1A: *idx1 = var0; FN=0 MORE init=0 WS=0 RS=0 */
+.long 0x00008860 /* 00BC: DRD1A: idx2 = var12; FN=0 init=0 WS=0 RS=0 */
+.long 0x81988000 /* 00C0: LCD: idx1 = var3; idx1 once var0; idx1 += inc0 */
+.long 0x10000788 /* 00C4: DRD1A: var1 = *idx1; FN=0 MORE init=0 WS=0 RS=0 */
+.long 0x60000000 /* 00C8: DRD2A: EU0=0 EU1=0 EU2=0 EU3=0 EXT init=0 WS=0 RS=0 */
+.long 0x080cf04d /* 00CC: DRD2B1: idx0 = EU3(); EU3(var1,var13) */
+.long 0x000001f8 /* 00D0(:0): NOP */
+
+.align 8
+
+.globl scEthernetRecv_VarTab
+scEthernetRecv_VarTab: /* Task 0 Variable Table */
+.long 0x00000000 /* var[0] */
+.long 0x00000000 /* var[1] */
+.long 0x00000000 /* var[2] */
+.long 0x00000000 /* var[3] */
+.long 0x00000000 /* var[4] */
+.long 0x00000000 /* var[5] */
+.long 0x00000000 /* var[6] */
+.long 0x00000000 /* var[7] */
+.long 0x00000000 /* var[8] */
+.long 0xf0008800 /* var[9] */
+.long 0x00000008 /* var[10] */
+.long 0x0000000c /* var[11] */
+.long 0x80000000 /* var[12] */
+.long 0x00000000 /* var[13] */
+.long 0x10000000 /* var[14] */
+.long 0x20000000 /* var[15] */
+.long 0x000005e4 /* var[16] */
+.long 0x0000000e /* var[17] */
+.long 0x000005e0 /* var[18] */
+.long 0x00000004 /* var[19] */
+.long 0x00000000 /* var[20] */
+.long 0x00000000 /* var[21] */
+.long 0x00000000 /* var[22] */
+.long 0x00000000 /* var[23] */
+.long 0x00000000 /* inc[0] */
+.long 0x60000000 /* inc[1] */
+.long 0x20000001 /* inc[2] */
+.long 0x80000000 /* inc[3] */
+.long 0x40000000 /* inc[4] */
+.long 0x00000000 /* inc[5] */
+.long 0x00000000 /* inc[6] */
+.long 0x00000000 /* inc[7] */
+
+.align 8
+
+.globl scEthernetXmit_VarTab
+scEthernetXmit_VarTab: /* Task 1 Variable Table */
+.long 0x00000000 /* var[0] */
+.long 0x00000000 /* var[1] */
+.long 0x00000000 /* var[2] */
+.long 0x00000000 /* var[3] */
+.long 0x00000000 /* var[4] */
+.long 0x00000000 /* var[5] */
+.long 0x00000000 /* var[6] */
+.long 0x00000000 /* var[7] */
+.long 0x00000000 /* var[8] */
+.long 0x00000000 /* var[9] */
+.long 0x00000000 /* var[10] */
+.long 0xf0008800 /* var[11] */
+.long 0x00000000 /* var[12] */
+.long 0x80000000 /* var[13] */
+.long 0x10000000 /* var[14] */
+.long 0x08000000 /* var[15] */
+.long 0x20000000 /* var[16] */
+.long 0x0000ffff /* var[17] */
+.long 0xffffffff /* var[18] */
+.long 0x00000008 /* var[19] */
+.long 0x00000000 /* var[20] */
+.long 0x00000000 /* var[21] */
+.long 0x00000000 /* var[22] */
+.long 0x00000000 /* var[23] */
+.long 0x00000000 /* inc[0] */
+.long 0x60000000 /* inc[1] */
+.long 0x40000000 /* inc[2] */
+.long 0x4000ffff /* inc[3] */
+.long 0xe0000001 /* inc[4] */
+.long 0x80000000 /* inc[5] */
+.long 0x00000000 /* inc[6] */
+.long 0x00000000 /* inc[7] */
+
+.align 8
+
+.globl scEthernetRecv_FDT
+scEthernetRecv_FDT: /* Task 0 Function Descriptor Table */
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x21800000 /* and(), EU# 3 */
+.long 0x21400000 /* andn(), EU# 3 */
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+
+.align 8
+
+.globl scEthernetXmit_FDT
+scEthernetXmit_FDT: /* Task 1 Function Descriptor Table */
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x21800000 /* and(), EU# 3 */
+.long 0x21400000 /* andn(), EU# 3 */
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+.long 0x00000000
+
+
+.globl scEthernetRecv_CSave
+scEthernetRecv_CSave: /* Task 0 context save space */
+.space 128, 0x0
+
+
+.globl scEthernetXmit_CSave
+scEthernetXmit_CSave: /* Task 1 context save space */
+.space 128, 0x0
+
+#endif /* CONFIG_MPC5200 */
diff --git a/cpu/mpc5xxx/interrupts.c b/cpu/mpc5xxx/interrupts.c
new file mode 100644
index 00000000000..5aa43880bb7
--- /dev/null
+++ b/cpu/mpc5xxx/interrupts.c
@@ -0,0 +1,180 @@
+/*
+ * (C) Copyright -2003
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * (C) Copyright 2001
+ * Josh Huber <huber@mclx.com>, Mission Critical Linux, Inc.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+/*
+ * interrupts.c - just enough support for the decrementer/timer
+ */
+
+#include <common.h>
+#include <asm/processor.h>
+#include <command.h>
+
+/****************************************************************************/
+
+unsigned decrementer_count; /* count value for 1e6/HZ microseconds */
+
+/****************************************************************************/
+
+static __inline__ unsigned long
+get_msr(void)
+{
+ unsigned long msr;
+
+ asm volatile("mfmsr %0" : "=r" (msr) :);
+ return msr;
+}
+
+static __inline__ void
+set_msr(unsigned long msr)
+{
+ asm volatile("mtmsr %0" : : "r" (msr));
+}
+
+static __inline__ unsigned long
+get_dec(void)
+{
+ unsigned long val;
+
+ asm volatile("mfdec %0" : "=r" (val) :);
+ return val;
+}
+
+
+static __inline__ void
+set_dec(unsigned long val)
+{
+ asm volatile("mtdec %0" : : "r" (val));
+}
+
+
+void
+enable_interrupts(void)
+{
+ set_msr (get_msr() | MSR_EE);
+}
+
+/* returns flag if MSR_EE was set before */
+int
+disable_interrupts(void)
+{
+ ulong msr = get_msr();
+ set_msr (msr & ~MSR_EE);
+ return ((msr & MSR_EE) != 0);
+}
+
+/****************************************************************************/
+
+int interrupt_init(void)
+{
+ decrementer_count = get_tbclk() / CFG_HZ;
+
+#ifdef DEBUG
+ puts("interrupt_init: setting actual decremter\n");
+#endif
+ set_dec (get_tbclk() / CFG_HZ);
+
+#ifdef DEBUG
+ printf("interrupt_init: enabling interrupts (msr = %08lx)\n",
+ get_msr());
+#endif
+ set_msr (get_msr() | MSR_EE);
+
+#ifdef DEBUG
+ printf("interrupt_init: done. (msr = %08lx)\n", get_msr());
+#endif
+ return (0);
+}
+
+/****************************************************************************/
+
+/*
+ * Handle external interrupts
+ */
+void
+external_interrupt(struct pt_regs *regs)
+{
+ puts("external_interrupt (oops!)\n");
+}
+
+volatile ulong timestamp = 0;
+
+/*
+ * timer_interrupt - gets called when the decrementer overflows,
+ * with interrupts disabled.
+ * Trivial implementation - no need to be really accurate.
+ */
+void
+timer_interrupt(struct pt_regs *regs)
+{
+ set_dec(decrementer_count);
+ timestamp++;
+}
+
+/****************************************************************************/
+
+void
+reset_timer(void)
+{
+ timestamp = 0;
+}
+
+ulong
+get_timer(ulong base)
+{
+ return (timestamp - base);
+}
+
+void
+set_timer(ulong t)
+{
+ timestamp = t;
+}
+
+/****************************************************************************/
+
+/*
+ * Install and free a interrupt handler.
+ */
+
+void
+irq_install_handler(int vec, interrupt_handler_t *handler, void *arg)
+{
+
+}
+
+void
+irq_free_handler(int vec)
+{
+
+}
+
+/****************************************************************************/
+
+void
+do_irqinfo(cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char *argv[])
+{
+ puts("IRQ related functions are unimplemented currently.\n");
+}
diff --git a/cpu/mpc5xxx/io.S b/cpu/mpc5xxx/io.S
new file mode 100644
index 00000000000..2178a267634
--- /dev/null
+++ b/cpu/mpc5xxx/io.S
@@ -0,0 +1,128 @@
+/*
+ * Copyright (C) 1998 Dan Malek <dmalek@jlc.net>
+ * Copyright (C) 1999 Magnus Damm <kieraypc01.p.y.kie.era.ericsson.se>
+ * Copyright (C) 2001 Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Andreas Heppel <aheppel@sysgo.de>
+ * Copyright (C) 2003 Wolfgang Denk <wd@denx.de>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <config.h>
+#include <ppc_asm.tmpl>
+
+/* ------------------------------------------------------------------------------- */
+/* Function: in8 */
+/* Description: Input 8 bits */
+/* ------------------------------------------------------------------------------- */
+ .globl in8
+in8:
+ lbz r3,0(r3)
+ sync
+ blr
+
+/* ------------------------------------------------------------------------------- */
+/* Function: in16 */
+/* Description: Input 16 bits */
+/* ------------------------------------------------------------------------------- */
+ .globl in16
+in16:
+ lhz r3,0(r3)
+ sync
+ blr
+
+/* ------------------------------------------------------------------------------- */
+/* Function: in16r */
+/* Description: Input 16 bits and byte reverse */
+/* ------------------------------------------------------------------------------- */
+ .globl in16r
+in16r:
+ lhbrx r3,0,r3
+ sync
+ blr
+
+/* ------------------------------------------------------------------------------- */
+/* Function: in32 */
+/* Description: Input 32 bits */
+/* ------------------------------------------------------------------------------- */
+ .globl in32
+in32:
+ lwz 3,0(3)
+ sync
+ blr
+
+/* ------------------------------------------------------------------------------- */
+/* Function: in32r */
+/* Description: Input 32 bits and byte reverse */
+/* ------------------------------------------------------------------------------- */
+ .globl in32r
+in32r:
+ lwbrx r3,0,r3
+ sync
+ blr
+
+/* ------------------------------------------------------------------------------- */
+/* Function: out8 */
+/* Description: Output 8 bits */
+/* ------------------------------------------------------------------------------- */
+ .globl out8
+out8:
+ stb r4,0(r3)
+ sync
+ blr
+
+/* ------------------------------------------------------------------------------- */
+/* Function: out16 */
+/* Description: Output 16 bits */
+/* ------------------------------------------------------------------------------- */
+ .globl out16
+out16:
+ sth r4,0(r3)
+ sync
+ blr
+
+/* ------------------------------------------------------------------------------- */
+/* Function: out16r */
+/* Description: Byte reverse and output 16 bits */
+/* ------------------------------------------------------------------------------- */
+ .globl out16r
+out16r:
+ sthbrx r4,0,r3
+ sync
+ blr
+
+/* ------------------------------------------------------------------------------- */
+/* Function: out32 */
+/* Description: Output 32 bits */
+/* ------------------------------------------------------------------------------- */
+ .globl out32
+out32:
+ stw r4,0(r3)
+ sync
+ blr
+
+/* ------------------------------------------------------------------------------- */
+/* Function: out32r */
+/* Description: Byte reverse and output 32 bits */
+/* ------------------------------------------------------------------------------- */
+ .globl out32r
+out32r:
+ stwbrx r4,0,r3
+ sync
+ blr
diff --git a/cpu/mpc5xxx/loadtask.c b/cpu/mpc5xxx/loadtask.c
new file mode 100644
index 00000000000..47e7b596a6f
--- /dev/null
+++ b/cpu/mpc5xxx/loadtask.c
@@ -0,0 +1,76 @@
+/*
+ * (C) Copyright 2003
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * This file is based on code
+ * (C) Copyright Motorola, Inc., 2000
+ */
+
+#include <common.h>
+#include <mpc5xxx.h>
+
+/* BestComm/SmartComm microcode */
+extern int taskTable;
+
+void loadtask(int basetask, int tasks)
+{
+ int *sram = (int *)MPC5XXX_SRAM;
+ int *task_org = &taskTable;
+ unsigned int start, offset, end;
+ int i;
+
+#ifdef DEBUG
+ printf("basetask = %d, tasks = %d\n", basetask, tasks);
+ printf("task_org = 0x%08x\n", (unsigned int)task_org);
+#endif
+
+ /* setup TaskBAR register */
+ *(vu_long *)MPC5XXX_SDMA = MPC5XXX_SRAM;
+
+ /* relocate task table entries */
+ offset = (unsigned int)sram;
+ for (i = basetask; i < basetask + tasks; i++) {
+ sram[i * 8 + 0] = task_org[i * 8 + 0] + offset;
+ sram[i * 8 + 1] = task_org[i * 8 + 1] + offset;
+ sram[i * 8 + 2] = task_org[i * 8 + 2] + offset;
+ sram[i * 8 + 3] = task_org[i * 8 + 3] + offset;
+ sram[i * 8 + 4] = task_org[i * 8 + 4];
+ sram[i * 8 + 5] = task_org[i * 8 + 5];
+ sram[i * 8 + 6] = task_org[i * 8 + 6] + offset;
+ sram[i * 8 + 7] = task_org[i * 8 + 7];
+ }
+
+ /* relocate task descriptors */
+ start = (sram[basetask * 8] - (unsigned int)sram);
+ end = (sram[(basetask + tasks - 1) * 8 + 1] - (unsigned int)sram);
+
+#ifdef DEBUG
+ printf ("TDT start = 0x%08x, end = 0x%08x\n", start, end);
+#endif
+
+ start /= 4;
+ end /= 4;
+ for (i = start; i <= end; i++) {
+ sram[i] = task_org[i];
+ }
+
+ /* relocate variables */
+ start = (sram[basetask * 8 + 2] - (unsigned int)sram);
+ end = (sram[(basetask + tasks - 1) * 8 + 2] + 256 - (unsigned int)sram);
+ start /= 4;
+ end /= 4;
+ for (i = start; i < end; i++) {
+ sram[i] = task_org[i];
+ }
+
+ /* relocate function decriptors */
+ start = ((sram[basetask * 8 + 3] & 0xfffffffc) - (unsigned int)sram);
+ end = ((sram[(basetask + tasks - 1) * 8 + 3] & 0xfffffffc) + 256 - (unsigned int)sram);
+ start /= 4;
+ end /= 4;
+ for (i = start; i < end; i++) {
+ sram[i] = task_org[i];
+ }
+
+ asm volatile ("sync");
+}
diff --git a/cpu/mpc5xxx/sdma.h b/cpu/mpc5xxx/sdma.h
new file mode 100644
index 00000000000..8b740e4e6e2
--- /dev/null
+++ b/cpu/mpc5xxx/sdma.h
@@ -0,0 +1,93 @@
+/*
+ * (C) Copyright 2003
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * This file is based on code
+ * (C) Copyright Motorola, Inc., 2000
+ *
+ * odin smartdma header file
+ */
+
+#ifndef __MPC5XXX_SDMA_H
+#define __MPC5XXX_SDMA_H
+
+#include <common.h>
+#include <mpc5xxx.h>
+
+/* Task number assignment */
+#define FEC_RECV_TASK_NO 0
+#define FEC_XMIT_TASK_NO 1
+
+/*---------------------------------------------------------------------*/
+
+/* Stuff for Ethernet Tx/Rx tasks */
+
+/*---------------------------------------------------------------------*/
+
+/* Layout of Ethernet controller Parameter SRAM area:
+----------------------------------------------------------------
+0x00: TBD_BASE, base address of TX BD ring
+0x04: TBD_NEXT, address of next TX BD to be processed
+0x08: RBD_BASE, base address of RX BD ring
+0x0C: RBD_NEXT, address of next RX BD to be processed
+---------------------------------------------------------------
+ALL PARAMETERS ARE ALL LONGWORDS (FOUR BYTES EACH).
+*/
+
+/* base address of SRAM area to store parameters used by Ethernet tasks */
+#define FEC_PARAM_BASE (MPC5XXX_SRAM + 0x0800)
+
+/* base address of SRAM area for buffer descriptors */
+#define FEC_BD_BASE (MPC5XXX_SRAM + 0x0820)
+
+/*---------------------------------------------------------------------*/
+
+/* common shortcuts used by driver C code */
+
+/*---------------------------------------------------------------------*/
+
+/* Disable SmartDMA task */
+#define SDMA_TASK_DISABLE(tasknum) \
+{ \
+ volatile ushort *tcr = (ushort *)(MPC5XXX_SDMA + 0x0000001c + 2 * tasknum); \
+ *tcr = (*tcr) & (~0x8000); \
+}
+
+/* Enable SmartDMA task */
+#define SDMA_TASK_ENABLE(tasknum) \
+{ \
+ volatile ushort *tcr = (ushort *) (MPC5XXX_SDMA + 0x0000001c + 2 * tasknum); \
+ *tcr = (*tcr) | 0x8000; \
+}
+
+/* Enable interrupt */
+#define SDMA_INT_ENABLE(tasknum) \
+{ \
+ struct mpc5xxx_sdma *sdma = (struct mpc5xxx_sdma *)MPC5XXX_SDMA; \
+ sdma->IntMask &= ~(1 << tasknum); \
+}
+
+/* Disable interrupt */
+#define SDMA_INT_DISABLE(tasknum) \
+{ \
+ struct mpc5xxx_sdma *sdma = (struct mpc5xxx_sdma *)MPC5XXX_SDMA; \
+ sdma->IntMask |= (1 << tasknum); \
+}
+
+
+/* Clear interrupt pending bits */
+#define SDMA_CLEAR_IEVENT(tasknum) \
+{ \
+ struct mpc5xxx_sdma *sdma = (struct mpc5xxx_sdma *)MPC5XXX_SDMA; \
+ sdma->IntPend = (1 << tasknum); \
+}
+
+/* get interupt pending bit of a task */
+#define SDMA_GET_PENDINGBIT(tasknum) \
+ ((*(vu_long *)(MPC5XXX_SDMA + 0x14)) & (1<<(tasknum)))
+
+/* get interupt mask bit of a task */
+#define SDMA_GET_MASKBIT(tasknum) \
+ ((*(vu_long *)(MPC5XXX_SDMA + 0x18)) & (1<<(tasknum)))
+
+#endif /* __MPC5XXX_SDMA_H */
diff --git a/cpu/mpc5xxx/serial.c b/cpu/mpc5xxx/serial.c
new file mode 100644
index 00000000000..54ecf5be17b
--- /dev/null
+++ b/cpu/mpc5xxx/serial.c
@@ -0,0 +1,165 @@
+/*
+ * (C) Copyright 2000 - 2003
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ *
+ * Hacked for MPC8260 by Murray.Jensen@cmst.csiro.au, 19-Oct-00, with
+ * changes based on the file arch/ppc/mbxboot/m8260_tty.c from the
+ * Linux/PPC sources (m8260_tty.c had no copyright info in it).
+ */
+
+/*
+ * Minimal serial functions needed to use one of the PSC ports
+ * as serial console interface.
+ */
+
+#include <common.h>
+#include <mpc5xxx.h>
+
+#if defined(CONFIG_PSC_CONSOLE)
+
+#if CONFIG_PSC_CONSOLE == 1
+#define PSC_BASE MPC5XXX_PSC1
+#elif CONFIG_PSC_CONSOLE == 2
+#define PSC_BASE MPC5XXX_PSC2
+#elif CONFIG_PSC_CONSOLE == 3
+#define PSC_BASE MPC5XXX_PSC3
+#elif defined(CONFIG_MGT5100)
+#error CONFIG_PSC_CONSOLE must be in 1, 2 or 3
+#elif CONFIG_PSC_CONSOLE == 4
+#define PSC_BASE MPC5XXX_PSC4
+#elif CONFIG_PSC_CONSOLE == 5
+#define PSC_BASE MPC5XXX_PSC5
+#elif CONFIG_PSC_CONSOLE == 6
+#define PSC_BASE MPC5XXX_PSC6
+#else
+#error CONFIG_PSC_CONSOLE must be in 1 ... 6
+#endif
+
+int serial_init (void)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+
+ volatile struct mpc5xxx_psc *psc = (struct mpc5xxx_psc *)PSC_BASE;
+ unsigned long baseclk;
+ int div;
+
+ /* reset PSC */
+ psc->command = PSC_SEL_MODE_REG_1;
+
+ /* select clock sources */
+#if defined(CONFIG_MGT5100)
+ psc->psc_clock_select = 0xdd00;
+ baseclk = CFG_MPC5XXX_CLKIN / 32;
+#elif defined(CONFIG_MPC5200)
+ psc->psc_clock_select = 0;
+ baseclk = gd->ipb_clk / 32;
+#endif
+
+ /* switch to UART mode */
+ psc->sicr = 0;
+
+ /* configure parity, bit length and so on */
+#if defined(CONFIG_MGT5100)
+ psc->mode = PSC_MODE_ERR | PSC_MODE_8_BITS | PSC_MODE_PARNONE;
+#elif defined(CONFIG_MPC5200)
+ psc->mode = PSC_MODE_8_BITS | PSC_MODE_PARNONE;
+#endif
+ psc->mode = PSC_MODE_ONE_STOP;
+
+ /* set up UART divisor */
+ div = baseclk / gd->baudrate;
+ psc->ctur = div >> 8;
+ psc->ctlr = div & 0xff;
+
+ /* disable all interrupts */
+ psc->psc_imr = 0;
+
+ /* reset and enable Rx/Tx */
+ psc->command = PSC_RST_RX;
+ psc->command = PSC_RST_TX;
+ psc->command = PSC_RX_ENABLE | PSC_TX_ENABLE;
+
+ return (0);
+}
+
+void
+serial_putc(const char c)
+{
+ volatile struct mpc5xxx_psc *psc = (struct mpc5xxx_psc *)PSC_BASE;
+
+ if (c == '\n')
+ serial_putc('\r');
+
+ /* Wait for last character to go. */
+ while (!(psc->psc_status & PSC_SR_TXEMP))
+ ;
+
+ psc->psc_buffer_8 = c;
+}
+
+void
+serial_puts (const char *s)
+{
+ while (*s) {
+ serial_putc (*s++);
+ }
+}
+
+int
+serial_getc(void)
+{
+ volatile struct mpc5xxx_psc *psc = (struct mpc5xxx_psc *)PSC_BASE;
+
+ /* Wait for a character to arrive. */
+ while (!(psc->psc_status & PSC_SR_RXRDY))
+ ;
+
+ return psc->psc_buffer_8;
+}
+
+int
+serial_tstc(void)
+{
+ volatile struct mpc5xxx_psc *psc = (struct mpc5xxx_psc *)PSC_BASE;
+
+ return (psc->psc_status & PSC_SR_RXRDY);
+}
+
+void
+serial_setbrg(void)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+
+ volatile struct mpc5xxx_psc *psc = (struct mpc5xxx_psc *)PSC_BASE;
+ unsigned long baseclk, div;
+
+#if defined(CONFIG_MGT5100)
+ baseclk = CFG_MPC5XXX_CLKIN / 32;
+#elif defined(CONFIG_MPC5200)
+ baseclk = gd->ipb_clk / 32;
+#endif
+
+ /* set up UART divisor */
+ div = baseclk / gd->baudrate;
+ psc->ctur = div >> 8;
+ psc->ctlr = div & 0xff;
+}
+#endif /* CONFIG_PSC_CONSOLE */
diff --git a/cpu/mpc5xxx/speed.c b/cpu/mpc5xxx/speed.c
new file mode 100644
index 00000000000..cb27779a229
--- /dev/null
+++ b/cpu/mpc5xxx/speed.c
@@ -0,0 +1,93 @@
+/*
+ * (C) Copyright 2000-2002
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <mpc5xxx.h>
+#include <asm/processor.h>
+
+/* ------------------------------------------------------------------------- */
+
+/* Bus-to-Core Multipliers */
+
+static int bus2core[] = {
+ 0, 0, 0, 10, 20, 20, 25, 45,
+ 30, 55, 40, 50, 0, 60, 35, 0,
+ 30, 25, 65, 10, 70, 20, 75, 45,
+ 0, 55, 40, 50, 80, 60, 35, 0
+};
+/* ------------------------------------------------------------------------- */
+
+/*
+ *
+ */
+
+int get_clocks (void)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+
+ ulong val, vco;
+
+#if !defined(CFG_MPC5XXX_CLKIN)
+#error clock measuring not implemented yet - define CFG_MPC5XXX_CLKIN
+#endif
+
+ val = *(vu_long *)MPC5XXX_CDM_PORCFG;
+ if (val & (1 << 6)) {
+ vco = CFG_MPC5XXX_CLKIN * 12;
+ } else {
+ vco = CFG_MPC5XXX_CLKIN * 16;
+ }
+ if (val & (1 << 5)) {
+ gd->bus_clk = vco / 8;
+ } else {
+ gd->bus_clk = vco / 4;
+ }
+ gd->cpu_clk = gd->bus_clk * bus2core[val & 0x1f] / 10;
+
+ val = *(vu_long *)MPC5XXX_CDM_CFG;
+ if (val & (1 << 8)) {
+ gd->ipb_clk = gd->bus_clk / 2;
+ } else {
+ gd->ipb_clk = gd->bus_clk;
+ }
+ switch (val & 3) {
+ case 0: gd->pci_clk = gd->ipb_clk; break;
+ case 1: gd->pci_clk = gd->ipb_clk / 2; break;
+ default: gd->pci_clk = gd->bus_clk / 4; break;
+ }
+
+ return (0);
+}
+
+int prt_mpc5xxx_clks (void)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+
+ printf(" Bus %ld MHz, IPB %ld MHz, PCI %ld MHz\n",
+ gd->bus_clk / 1000000, gd->ipb_clk / 1000000,
+ gd->pci_clk / 1000000);
+
+ return (0);
+}
+
+/* ------------------------------------------------------------------------- */
diff --git a/cpu/mpc5xxx/start.S b/cpu/mpc5xxx/start.S
new file mode 100644
index 00000000000..41454423ca0
--- /dev/null
+++ b/cpu/mpc5xxx/start.S
@@ -0,0 +1,817 @@
+/*
+ * Copyright (C) 1998 Dan Malek <dmalek@jlc.net>
+ * Copyright (C) 1999 Magnus Damm <kieraypc01.p.y.kie.era.ericsson.se>
+ * Copyright (C) 2000 - 2003 Wolfgang Denk <wd@denx.de>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+/*
+ * U-Boot - Startup Code for MPC5xxx CPUs
+ */
+#include <config.h>
+#include <mpc5xxx.h>
+#include <version.h>
+
+#define CONFIG_MPC5XXX 1 /* needed for Linux kernel header files */
+#define _LINUX_CONFIG_H 1 /* avoid reading Linux autoconf.h file */
+
+#include <ppc_asm.tmpl>
+#include <ppc_defs.h>
+
+#include <asm/cache.h>
+#include <asm/mmu.h>
+
+#ifndef CONFIG_IDENT_STRING
+#define CONFIG_IDENT_STRING ""
+#endif
+
+/* We don't want the MMU yet.
+*/
+#undef MSR_KERNEL
+/* Floating Point enable, Machine Check and Recoverable Interr. */
+#ifdef DEBUG
+#define MSR_KERNEL (MSR_FP|MSR_RI)
+#else
+#define MSR_KERNEL (MSR_FP|MSR_ME|MSR_RI)
+#endif
+
+/*
+ * Set up GOT: Global Offset Table
+ *
+ * Use r14 to access the GOT
+ */
+ START_GOT
+ GOT_ENTRY(_GOT2_TABLE_)
+ GOT_ENTRY(_FIXUP_TABLE_)
+
+ GOT_ENTRY(_start)
+ GOT_ENTRY(_start_of_vectors)
+ GOT_ENTRY(_end_of_vectors)
+ GOT_ENTRY(transfer_to_handler)
+
+ GOT_ENTRY(__init_end)
+ GOT_ENTRY(_end)
+ GOT_ENTRY(__bss_start)
+ END_GOT
+
+/*
+ * Version string
+ */
+ .data
+ .globl version_string
+version_string:
+ .ascii U_BOOT_VERSION
+ .ascii " (", __DATE__, " - ", __TIME__, ")"
+ .ascii CONFIG_IDENT_STRING, "\0"
+
+/*
+ * Exception vectors
+ */
+ .text
+ . = EXC_OFF_SYS_RESET
+ .globl _start
+_start:
+ li r21, BOOTFLAG_COLD /* Normal Power-On */
+ nop
+ b boot_cold
+
+ . = EXC_OFF_SYS_RESET + 0x10
+
+ .globl _start_warm
+_start_warm:
+ li r21, BOOTFLAG_WARM /* Software reboot */
+ b boot_warm
+
+boot_cold:
+boot_warm:
+ mfmsr r5 /* save msr contents */
+
+#if defined(CFG_DEFAULT_MBAR)
+ lis r3, CFG_MBAR@h
+ ori r3, r3, CFG_MBAR@l
+#if defined(CONFIG_MPC5200)
+ rlwinm r3, r3, 16, 16, 31
+#endif
+#if defined(CONFIG_MGT5100)
+ rlwinm r3, r3, 17, 15, 31
+#endif
+ lis r4, CFG_DEFAULT_MBAR@h
+ stw r3, 0(r4)
+#endif /* CFG_DEFAULT_MBAR */
+
+ /* Initialise the MPC5xxx processor core */
+ /*--------------------------------------------------------------*/
+
+ bl init_5xxx_core
+
+ /* initialize some things that are hard to access from C */
+ /*--------------------------------------------------------------*/
+
+ /* set up stack in on-chip SRAM */
+ lis r3, CFG_INIT_RAM_ADDR@h
+ ori r3, r3, CFG_INIT_RAM_ADDR@l
+ ori r1, r3, CFG_INIT_SP_OFFSET
+ li r0, 0 /* Make room for stack frame header and */
+ stwu r0, -4(r1) /* clear final stack frame so that */
+ stwu r0, -4(r1) /* stack backtraces terminate cleanly */
+
+ /* let the C-code set up the rest */
+ /* */
+ /* Be careful to keep code relocatable ! */
+ /*--------------------------------------------------------------*/
+
+ GET_GOT /* initialize GOT access */
+
+ /* r3: IMMR */
+ bl cpu_init_f /* run low-level CPU init code (in Flash)*/
+
+ mr r3, r21
+ /* r3: BOOTFLAG */
+ bl board_init_f /* run 1st part of board init code (in Flash)*/
+
+/*
+ * Vector Table
+ */
+
+ .globl _start_of_vectors
+_start_of_vectors:
+
+/* Machine check */
+ STD_EXCEPTION(0x200, MachineCheck, MachineCheckException)
+
+/* Data Storage exception. */
+ STD_EXCEPTION(0x300, DataStorage, UnknownException)
+
+/* Instruction Storage exception. */
+ STD_EXCEPTION(0x400, InstStorage, UnknownException)
+
+/* External Interrupt exception. */
+ STD_EXCEPTION(0x500, ExtInterrupt, external_interrupt)
+
+/* Alignment exception. */
+ . = 0x600
+Alignment:
+ EXCEPTION_PROLOG
+ mfspr r4,DAR
+ stw r4,_DAR(r21)
+ mfspr r5,DSISR
+ stw r5,_DSISR(r21)
+ addi r3,r1,STACK_FRAME_OVERHEAD
+ li r20,MSR_KERNEL
+ rlwimi r20,r23,0,16,16 /* copy EE bit from saved MSR */
+ rlwimi r20,r23,0,25,25 /* copy IP bit from saved MSR */
+ lwz r6,GOT(transfer_to_handler)
+ mtlr r6
+ blrl
+.L_Alignment:
+ .long AlignmentException - _start + EXC_OFF_SYS_RESET
+ .long int_return - _start + EXC_OFF_SYS_RESET
+
+/* Program check exception */
+ . = 0x700
+ProgramCheck:
+ EXCEPTION_PROLOG
+ addi r3,r1,STACK_FRAME_OVERHEAD
+ li r20,MSR_KERNEL
+ rlwimi r20,r23,0,16,16 /* copy EE bit from saved MSR */
+ rlwimi r20,r23,0,25,25 /* copy IP bit from saved MSR */
+ lwz r6,GOT(transfer_to_handler)
+ mtlr r6
+ blrl
+.L_ProgramCheck:
+ .long ProgramCheckException - _start + EXC_OFF_SYS_RESET
+ .long int_return - _start + EXC_OFF_SYS_RESET
+
+ STD_EXCEPTION(0x800, FPUnavailable, UnknownException)
+
+ /* I guess we could implement decrementer, and may have
+ * to someday for timekeeping.
+ */
+ STD_EXCEPTION(0x900, Decrementer, timer_interrupt)
+
+ STD_EXCEPTION(0xa00, Trap_0a, UnknownException)
+ STD_EXCEPTION(0xb00, Trap_0b, UnknownException)
+
+ . = 0xc00
+/*
+ * r0 - SYSCALL number
+ * r3-... arguments
+ */
+SystemCall:
+ addis r11,r0,0 /* get functions table addr */
+ ori r11,r11,0 /* Note: this code is patched in trap_init */
+ addis r12,r0,0 /* get number of functions */
+ ori r12,r12,0
+
+ cmplw 0, r0, r12
+ bge 1f
+
+ rlwinm r0,r0,2,0,31 /* fn_addr = fn_tbl[r0] */
+ add r11,r11,r0
+ lwz r11,0(r11)
+
+ li r20,0xd00-4 /* Get stack pointer */
+ lwz r12,0(r20)
+ subi r12,r12,12 /* Adjust stack pointer */
+ li r0,0xc00+_end_back-SystemCall
+ cmplw 0, r0, r12 /* Check stack overflow */
+ bgt 1f
+ stw r12,0(r20)
+
+ mflr r0
+ stw r0,0(r12)
+ mfspr r0,SRR0
+ stw r0,4(r12)
+ mfspr r0,SRR1
+ stw r0,8(r12)
+
+ li r12,0xc00+_back-SystemCall
+ mtlr r12
+ mtspr SRR0,r11
+
+1: SYNC
+ rfi
+
+_back:
+
+ mfmsr r11 /* Disable interrupts */
+ li r12,0
+ ori r12,r12,MSR_EE
+ andc r11,r11,r12
+ SYNC /* Some chip revs need this... */
+ mtmsr r11
+ SYNC
+
+ li r12,0xd00-4 /* restore regs */
+ lwz r12,0(r12)
+
+ lwz r11,0(r12)
+ mtlr r11
+ lwz r11,4(r12)
+ mtspr SRR0,r11
+ lwz r11,8(r12)
+ mtspr SRR1,r11
+
+ addi r12,r12,12 /* Adjust stack pointer */
+ li r20,0xd00-4
+ stw r12,0(r20)
+
+ SYNC
+ rfi
+_end_back:
+
+ STD_EXCEPTION(0xd00, SingleStep, UnknownException)
+
+ STD_EXCEPTION(0xe00, Trap_0e, UnknownException)
+ STD_EXCEPTION(0xf00, Trap_0f, UnknownException)
+
+ STD_EXCEPTION(0x1000, InstructionTLBMiss, UnknownException)
+ STD_EXCEPTION(0x1100, DataLoadTLBMiss, UnknownException)
+ STD_EXCEPTION(0x1200, DataStoreTLBMiss, UnknownException)
+#ifdef DEBUG
+ . = 0x1300
+ /*
+ * This exception occurs when the program counter matches the
+ * Instruction Address Breakpoint Register (IABR).
+ *
+ * I want the cpu to halt if this occurs so I can hunt around
+ * with the debugger and look at things.
+ *
+ * When DEBUG is defined, both machine check enable (in the MSR)
+ * and checkstop reset enable (in the reset mode register) are
+ * turned off and so a checkstop condition will result in the cpu
+ * halting.
+ *
+ * I force the cpu into a checkstop condition by putting an illegal
+ * instruction here (at least this is the theory).
+ *
+ * well - that didnt work, so just do an infinite loop!
+ */
+1: b 1b
+#else
+ STD_EXCEPTION(0x1300, InstructionBreakpoint, DebugException)
+#endif
+ STD_EXCEPTION(0x1400, SMI, UnknownException)
+
+ STD_EXCEPTION(0x1500, Trap_15, UnknownException)
+ STD_EXCEPTION(0x1600, Trap_16, UnknownException)
+ STD_EXCEPTION(0x1700, Trap_17, UnknownException)
+ STD_EXCEPTION(0x1800, Trap_18, UnknownException)
+ STD_EXCEPTION(0x1900, Trap_19, UnknownException)
+ STD_EXCEPTION(0x1a00, Trap_1a, UnknownException)
+ STD_EXCEPTION(0x1b00, Trap_1b, UnknownException)
+ STD_EXCEPTION(0x1c00, Trap_1c, UnknownException)
+ STD_EXCEPTION(0x1d00, Trap_1d, UnknownException)
+ STD_EXCEPTION(0x1e00, Trap_1e, UnknownException)
+ STD_EXCEPTION(0x1f00, Trap_1f, UnknownException)
+ STD_EXCEPTION(0x2000, Trap_20, UnknownException)
+ STD_EXCEPTION(0x2100, Trap_21, UnknownException)
+ STD_EXCEPTION(0x2200, Trap_22, UnknownException)
+ STD_EXCEPTION(0x2300, Trap_23, UnknownException)
+ STD_EXCEPTION(0x2400, Trap_24, UnknownException)
+ STD_EXCEPTION(0x2500, Trap_25, UnknownException)
+ STD_EXCEPTION(0x2600, Trap_26, UnknownException)
+ STD_EXCEPTION(0x2700, Trap_27, UnknownException)
+ STD_EXCEPTION(0x2800, Trap_28, UnknownException)
+ STD_EXCEPTION(0x2900, Trap_29, UnknownException)
+ STD_EXCEPTION(0x2a00, Trap_2a, UnknownException)
+ STD_EXCEPTION(0x2b00, Trap_2b, UnknownException)
+ STD_EXCEPTION(0x2c00, Trap_2c, UnknownException)
+ STD_EXCEPTION(0x2d00, Trap_2d, UnknownException)
+ STD_EXCEPTION(0x2e00, Trap_2e, UnknownException)
+ STD_EXCEPTION(0x2f00, Trap_2f, UnknownException)
+
+
+ .globl _end_of_vectors
+_end_of_vectors:
+
+ . = 0x3000
+
+/*
+ * This code finishes saving the registers to the exception frame
+ * and jumps to the appropriate handler for the exception.
+ * Register r21 is pointer into trap frame, r1 has new stack pointer.
+ */
+ .globl transfer_to_handler
+transfer_to_handler:
+ stw r22,_NIP(r21)
+ lis r22,MSR_POW@h
+ andc r23,r23,r22
+ stw r23,_MSR(r21)
+ SAVE_GPR(7, r21)
+ SAVE_4GPRS(8, r21)
+ SAVE_8GPRS(12, r21)
+ SAVE_8GPRS(24, r21)
+ mflr r23
+ andi. r24,r23,0x3f00 /* get vector offset */
+ stw r24,TRAP(r21)
+ li r22,0
+ stw r22,RESULT(r21)
+ lwz r24,0(r23) /* virtual address of handler */
+ lwz r23,4(r23) /* where to go when done */
+ mtspr SRR0,r24
+ mtspr SRR1,r20
+ mtlr r23
+ SYNC
+ rfi /* jump to handler, enable MMU */
+
+int_return:
+ mfmsr r28 /* Disable interrupts */
+ li r4,0
+ ori r4,r4,MSR_EE
+ andc r28,r28,r4
+ SYNC /* Some chip revs need this... */
+ mtmsr r28
+ SYNC
+ lwz r2,_CTR(r1)
+ lwz r0,_LINK(r1)
+ mtctr r2
+ mtlr r0
+ lwz r2,_XER(r1)
+ lwz r0,_CCR(r1)
+ mtspr XER,r2
+ mtcrf 0xFF,r0
+ REST_10GPRS(3, r1)
+ REST_10GPRS(13, r1)
+ REST_8GPRS(23, r1)
+ REST_GPR(31, r1)
+ lwz r2,_NIP(r1) /* Restore environment */
+ lwz r0,_MSR(r1)
+ mtspr SRR0,r2
+ mtspr SRR1,r0
+ lwz r0,GPR0(r1)
+ lwz r2,GPR2(r1)
+ lwz r1,GPR1(r1)
+ SYNC
+ rfi
+
+/*
+ * This code initialises the MPC5xxx processor core
+ * (conforms to PowerPC 603e spec)
+ * Note: expects original MSR contents to be in r5.
+ */
+
+ .globl init_5xx_core
+init_5xxx_core:
+
+ /* Initialize machine status; enable machine check interrupt */
+ /*--------------------------------------------------------------*/
+
+ li r3, MSR_KERNEL /* Set ME and RI flags */
+ rlwimi r3, r5, 0, 25, 25 /* preserve IP bit set by HRCW */
+#ifdef DEBUG
+ rlwimi r3, r5, 0, 21, 22 /* debugger might set SE & BE bits */
+#endif
+ SYNC /* Some chip revs need this... */
+ mtmsr r3
+ SYNC
+ mtspr SRR1, r3 /* Make SRR1 match MSR */
+
+ /* Initialize the Hardware Implementation-dependent Registers */
+ /* HID0 also contains cache control */
+ /*--------------------------------------------------------------*/
+
+ lis r3, CFG_HID0_INIT@h
+ ori r3, r3, CFG_HID0_INIT@l
+ SYNC
+ mtspr HID0, r3
+
+ lis r3, CFG_HID0_FINAL@h
+ ori r3, r3, CFG_HID0_FINAL@l
+ SYNC
+ mtspr HID0, r3
+
+ /* clear all BAT's */
+ /*--------------------------------------------------------------*/
+
+ li r0, 0
+ mtspr DBAT0U, r0
+ mtspr DBAT0L, r0
+ mtspr DBAT1U, r0
+ mtspr DBAT1L, r0
+ mtspr DBAT2U, r0
+ mtspr DBAT2L, r0
+ mtspr DBAT3U, r0
+ mtspr DBAT3L, r0
+ mtspr IBAT0U, r0
+ mtspr IBAT0L, r0
+ mtspr IBAT1U, r0
+ mtspr IBAT1L, r0
+ mtspr IBAT2U, r0
+ mtspr IBAT2L, r0
+ mtspr IBAT3U, r0
+ mtspr IBAT3L, r0
+ SYNC
+
+ /* invalidate all tlb's */
+ /* */
+ /* From the 603e User Manual: "The 603e provides the ability to */
+ /* invalidate a TLB entry. The TLB Invalidate Entry (tlbie) */
+ /* instruction invalidates the TLB entry indexed by the EA, and */
+ /* operates on both the instruction and data TLBs simultaneously*/
+ /* invalidating four TLB entries (both sets in each TLB). The */
+ /* index corresponds to bits 15-19 of the EA. To invalidate all */
+ /* entries within both TLBs, 32 tlbie instructions should be */
+ /* issued, incrementing this field by one each time." */
+ /* */
+ /* "Note that the tlbia instruction is not implemented on the */
+ /* 603e." */
+ /* */
+ /* bits 15-19 correspond to addresses 0x00000000 to 0x0001F000 */
+ /* incrementing by 0x1000 each time. The code below is sort of */
+ /* based on code in "flush_tlbs" from arch/ppc/kernel/head.S */
+ /* */
+ /*--------------------------------------------------------------*/
+
+ li r3, 32
+ mtctr r3
+ li r3, 0
+1: tlbie r3
+ addi r3, r3, 0x1000
+ bdnz 1b
+ SYNC
+
+ /* Done! */
+ /*--------------------------------------------------------------*/
+
+ blr
+
+/* Cache functions.
+ *
+ * Note: requires that all cache bits in
+ * HID0 are in the low half word.
+ */
+ .globl icache_enable
+icache_enable:
+ mfspr r3, HID0
+ ori r3, r3, HID0_ICE
+ lis r4, 0
+ ori r4, r4, HID0_ILOCK
+ andc r3, r3, r4
+ ori r4, r3, HID0_ICFI
+ isync
+ mtspr HID0, r4 /* sets enable and invalidate, clears lock */
+ isync
+ mtspr HID0, r3 /* clears invalidate */
+ blr
+
+ .globl icache_disable
+icache_disable:
+ mfspr r3, HID0
+ lis r4, 0
+ ori r4, r4, HID0_ICE|HID0_ILOCK
+ andc r3, r3, r4
+ ori r4, r3, HID0_ICFI
+ isync
+ mtspr HID0, r4 /* sets invalidate, clears enable and lock */
+ isync
+ mtspr HID0, r3 /* clears invalidate */
+ blr
+
+ .globl icache_status
+icache_status:
+ mfspr r3, HID0
+ rlwinm r3, r3, HID0_ICE_BITPOS + 1, 31, 31
+ blr
+
+ .globl dcache_enable
+dcache_enable:
+ mfspr r3, HID0
+ ori r3, r3, HID0_DCE
+ lis r4, 0
+ ori r4, r4, HID0_DLOCK
+ andc r3, r3, r4
+ ori r4, r3, HID0_DCI
+ sync
+ mtspr HID0, r4 /* sets enable and invalidate, clears lock */
+ sync
+ mtspr HID0, r3 /* clears invalidate */
+ blr
+
+ .globl dcache_disable
+dcache_disable:
+ mfspr r3, HID0
+ lis r4, 0
+ ori r4, r4, HID0_DCE|HID0_DLOCK
+ andc r3, r3, r4
+ ori r4, r3, HID0_DCI
+ sync
+ mtspr HID0, r4 /* sets invalidate, clears enable and lock */
+ sync
+ mtspr HID0, r3 /* clears invalidate */
+ blr
+
+ .globl dcache_status
+dcache_status:
+ mfspr r3, HID0
+ rlwinm r3, r3, HID0_DCE_BITPOS + 1, 31, 31
+ blr
+
+ .globl get_pvr
+get_pvr:
+ mfspr r3, PVR
+ blr
+
+/*------------------------------------------------------------------------------*/
+
+/*
+ * void relocate_code (addr_sp, gd, addr_moni)
+ *
+ * This "function" does not return, instead it continues in RAM
+ * after relocating the monitor code.
+ *
+ * r3 = dest
+ * r4 = src
+ * r5 = length in bytes
+ * r6 = cachelinesize
+ */
+ .globl relocate_code
+relocate_code:
+ mr r1, r3 /* Set new stack pointer */
+ mr r9, r4 /* Save copy of Global Data pointer */
+ mr r10, r5 /* Save copy of Destination Address */
+
+ mr r3, r5 /* Destination Address */
+ lis r4, CFG_MONITOR_BASE@h /* Source Address */
+ ori r4, r4, CFG_MONITOR_BASE@l
+ lwz r5, GOT(__init_end)
+ sub r5, r5, r4
+ li r6, CFG_CACHELINE_SIZE /* Cache Line Size */
+
+ /*
+ * Fix GOT pointer:
+ *
+ * New GOT-PTR = (old GOT-PTR - CFG_MONITOR_BASE) + Destination Address
+ *
+ * Offset:
+ */
+ sub r15, r10, r4
+
+ /* First our own GOT */
+ add r14, r14, r15
+ /* then the one used by the C code */
+ add r30, r30, r15
+
+ /*
+ * Now relocate code
+ */
+
+ cmplw cr1,r3,r4
+ addi r0,r5,3
+ srwi. r0,r0,2
+ beq cr1,4f /* In place copy is not necessary */
+ beq 7f /* Protect against 0 count */
+ mtctr r0
+ bge cr1,2f
+
+ la r8,-4(r4)
+ la r7,-4(r3)
+1: lwzu r0,4(r8)
+ stwu r0,4(r7)
+ bdnz 1b
+ b 4f
+
+2: slwi r0,r0,2
+ add r8,r4,r0
+ add r7,r3,r0
+3: lwzu r0,-4(r8)
+ stwu r0,-4(r7)
+ bdnz 3b
+
+/*
+ * Now flush the cache: note that we must start from a cache aligned
+ * address. Otherwise we might miss one cache line.
+ */
+4: cmpwi r6,0
+ add r5,r3,r5
+ beq 7f /* Always flush prefetch queue in any case */
+ subi r0,r6,1
+ andc r3,r3,r0
+ mfspr r7,HID0 /* don't do dcbst if dcache is disabled */
+ rlwinm r7,r7,HID0_DCE_BITPOS+1,31,31
+ cmpwi r7,0
+ beq 9f
+ mr r4,r3
+5: dcbst 0,r4
+ add r4,r4,r6
+ cmplw r4,r5
+ blt 5b
+ sync /* Wait for all dcbst to complete on bus */
+9: mfspr r7,HID0 /* don't do icbi if icache is disabled */
+ rlwinm r7,r7,HID0_ICE_BITPOS+1,31,31
+ cmpwi r7,0
+ beq 7f
+ mr r4,r3
+6: icbi 0,r4
+ add r4,r4,r6
+ cmplw r4,r5
+ blt 6b
+7: sync /* Wait for all icbi to complete on bus */
+ isync
+
+/*
+ * We are done. Do not return, instead branch to second part of board
+ * initialization, now running from RAM.
+ */
+
+ addi r0, r10, in_ram - _start + EXC_OFF_SYS_RESET
+ mtlr r0
+ blr
+
+in_ram:
+
+ /*
+ * Relocation Function, r14 point to got2+0x8000
+ *
+ * Adjust got2 pointers, no need to check for 0, this code
+ * already puts a few entries in the table.
+ */
+ li r0,__got2_entries@sectoff@l
+ la r3,GOT(_GOT2_TABLE_)
+ lwz r11,GOT(_GOT2_TABLE_)
+ mtctr r0
+ sub r11,r3,r11
+ addi r3,r3,-4
+1: lwzu r0,4(r3)
+ add r0,r0,r11
+ stw r0,0(r3)
+ bdnz 1b
+
+ /*
+ * Now adjust the fixups and the pointers to the fixups
+ * in case we need to move ourselves again.
+ */
+2: li r0,__fixup_entries@sectoff@l
+ lwz r3,GOT(_FIXUP_TABLE_)
+ cmpwi r0,0
+ mtctr r0
+ addi r3,r3,-4
+ beq 4f
+3: lwzu r4,4(r3)
+ lwzux r0,r4,r11
+ add r0,r0,r11
+ stw r10,0(r3)
+ stw r0,0(r4)
+ bdnz 3b
+4:
+clear_bss:
+ /*
+ * Now clear BSS segment
+ */
+ lwz r3,GOT(__bss_start)
+ lwz r4,GOT(_end)
+
+ cmplw 0, r3, r4
+ beq 6f
+
+ li r0, 0
+5:
+ stw r0, 0(r3)
+ addi r3, r3, 4
+ cmplw 0, r3, r4
+ bne 5b
+6:
+
+ mr r3, r9 /* Global Data pointer */
+ mr r4, r10 /* Destination Address */
+ bl board_init_r
+
+ /*
+ * Copy exception vector code to low memory
+ *
+ * r3: dest_addr
+ * r7: source address, r8: end address, r9: target address
+ */
+ .globl trap_init
+trap_init:
+ lwz r7, GOT(_start)
+ lwz r8, GOT(_end_of_vectors)
+
+ li r9, 0x100 /* reset vector always at 0x100 */
+
+ cmplw 0, r7, r8
+ bgelr /* return if r7>=r8 - just in case */
+
+ mflr r4 /* save link register */
+1:
+ lwz r0, 0(r7)
+ stw r0, 0(r9)
+ addi r7, r7, 4
+ addi r9, r9, 4
+ cmplw 0, r7, r8
+ bne 1b
+
+ /*
+ * relocate `hdlr' and `int_return' entries
+ */
+ li r7, .L_MachineCheck - _start + EXC_OFF_SYS_RESET
+ li r8, Alignment - _start + EXC_OFF_SYS_RESET
+2:
+ bl trap_reloc
+ addi r7, r7, 0x100 /* next exception vector */
+ cmplw 0, r7, r8
+ blt 2b
+
+ li r7, .L_Alignment - _start + EXC_OFF_SYS_RESET
+ bl trap_reloc
+
+ li r7, .L_ProgramCheck - _start + EXC_OFF_SYS_RESET
+ bl trap_reloc
+
+ li r7, .L_FPUnavailable - _start + EXC_OFF_SYS_RESET
+ li r8, SystemCall - _start + EXC_OFF_SYS_RESET
+3:
+ bl trap_reloc
+ addi r7, r7, 0x100 /* next exception vector */
+ cmplw 0, r7, r8
+ blt 3b
+
+ li r7, .L_SingleStep - _start + EXC_OFF_SYS_RESET
+ li r8, _end_of_vectors - _start + EXC_OFF_SYS_RESET
+4:
+ bl trap_reloc
+ addi r7, r7, 0x100 /* next exception vector */
+ cmplw 0, r7, r8
+ blt 4b
+
+ mfmsr r3 /* now that the vectors have */
+ lis r7, MSR_IP@h /* relocated into low memory */
+ ori r7, r7, MSR_IP@l /* MSR[IP] can be turned off */
+ andc r3, r3, r7 /* (if it was on) */
+ SYNC /* Some chip revs need this... */
+ mtmsr r3
+ SYNC
+
+ mtlr r4 /* restore link register */
+ blr
+
+ /*
+ * Function: relocate entries for one exception vector
+ */
+trap_reloc:
+ lwz r0, 0(r7) /* hdlr ... */
+ add r0, r0, r3 /* ... += dest_addr */
+ stw r0, 0(r7)
+
+ lwz r0, 4(r7) /* int_return ... */
+ add r0, r0, r3 /* ... += dest_addr */
+ stw r0, 4(r7)
+
+ blr
diff --git a/cpu/mpc5xxx/traps.c b/cpu/mpc5xxx/traps.c
new file mode 100644
index 00000000000..5d433945230
--- /dev/null
+++ b/cpu/mpc5xxx/traps.c
@@ -0,0 +1,246 @@
+/*
+ * linux/arch/ppc/kernel/traps.c
+ *
+ * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
+ *
+ * Modified by Cort Dougan (cort@cs.nmt.edu)
+ * and Paul Mackerras (paulus@cs.anu.edu.au)
+ *
+ * (C) Copyright 2000-2003
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+/*
+ * This file handles the architecture-dependent parts of hardware exceptions
+ */
+
+#include <common.h>
+#include <command.h>
+#include <asm/processor.h>
+
+#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
+int (*debugger_exception_handler)(struct pt_regs *) = 0;
+#endif
+
+/* Returns 0 if exception not found and fixup otherwise. */
+extern unsigned long search_exception_table(unsigned long);
+
+/* THIS NEEDS CHANGING to use the board info structure.
+*/
+#define END_OF_MEM 0x02000000
+
+/*
+ * Trap & Exception support
+ */
+
+void
+print_backtrace(unsigned long *sp)
+{
+ int cnt = 0;
+ unsigned long i;
+
+ printf("Call backtrace: ");
+ while (sp) {
+ if ((uint)sp > END_OF_MEM)
+ break;
+
+ i = sp[1];
+ if (cnt++ % 7 == 0)
+ printf("\n");
+ printf("%08lX ", i);
+ if (cnt > 32) break;
+ sp = (unsigned long *)*sp;
+ }
+ printf("\n");
+}
+
+void show_regs(struct pt_regs * regs)
+{
+ int i;
+
+ printf("NIP: %08lX XER: %08lX LR: %08lX REGS: %p TRAP: %04lx DAR: %08lX\n",
+ regs->nip, regs->xer, regs->link, regs, regs->trap, regs->dar);
+ printf("MSR: %08lx EE: %01x PR: %01x FP: %01x ME: %01x IR/DR: %01x%01x\n",
+ regs->msr, regs->msr&MSR_EE ? 1 : 0, regs->msr&MSR_PR ? 1 : 0,
+ regs->msr & MSR_FP ? 1 : 0,regs->msr&MSR_ME ? 1 : 0,
+ regs->msr&MSR_IR ? 1 : 0,
+ regs->msr&MSR_DR ? 1 : 0);
+
+ printf("\n");
+ for (i = 0; i < 32; i++) {
+ if ((i % 8) == 0)
+ {
+ printf("GPR%02d: ", i);
+ }
+
+ printf("%08lX ", regs->gpr[i]);
+ if ((i % 8) == 7)
+ {
+ printf("\n");
+ }
+ }
+}
+
+
+void
+_exception(int signr, struct pt_regs *regs)
+{
+ show_regs(regs);
+ print_backtrace((unsigned long *)regs->gpr[1]);
+ panic("Exception in kernel pc %lx signal %d",regs->nip,signr);
+}
+
+void
+MachineCheckException(struct pt_regs *regs)
+{
+ unsigned long fixup;
+
+ /* Probing PCI using config cycles cause this exception
+ * when a device is not present. Catch it and return to
+ * the PCI exception handler.
+ */
+ if ((fixup = search_exception_table(regs->nip)) != 0) {
+ regs->nip = fixup;
+ return;
+ }
+
+#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
+ if (debugger_exception_handler && (*debugger_exception_handler)(regs))
+ return;
+#endif
+
+ printf("Machine check in kernel mode.\n");
+ printf("Caused by (from msr): ");
+ printf("regs %p ",regs);
+ switch( regs->msr & 0x0000F000)
+ {
+ case (1<<12) :
+ printf("Machine check signal - probably due to mm fault\n"
+ "with mmu off\n");
+ break;
+ case (1<<13) :
+ printf("Transfer error ack signal\n");
+ break;
+ case (1<<14) :
+ printf("Data parity signal\n");
+ break;
+ case (1<<15) :
+ printf("Address parity signal\n");
+ break;
+ default:
+ printf("Unknown values in msr\n");
+ }
+ show_regs(regs);
+ print_backtrace((unsigned long *)regs->gpr[1]);
+ panic("machine check");
+}
+
+void
+AlignmentException(struct pt_regs *regs)
+{
+#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
+ if (debugger_exception_handler && (*debugger_exception_handler)(regs))
+ return;
+#endif
+ show_regs(regs);
+ print_backtrace((unsigned long *)regs->gpr[1]);
+ panic("Alignment Exception");
+}
+
+void
+ProgramCheckException(struct pt_regs *regs)
+{
+#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
+ if (debugger_exception_handler && (*debugger_exception_handler)(regs))
+ return;
+#endif
+ show_regs(regs);
+ print_backtrace((unsigned long *)regs->gpr[1]);
+ panic("Program Check Exception");
+}
+
+void
+SoftEmuException(struct pt_regs *regs)
+{
+#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
+ if (debugger_exception_handler && (*debugger_exception_handler)(regs))
+ return;
+#endif
+ show_regs(regs);
+ print_backtrace((unsigned long *)regs->gpr[1]);
+ panic("Software Emulation Exception");
+}
+
+
+void
+UnknownException(struct pt_regs *regs)
+{
+#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
+ if (debugger_exception_handler && (*debugger_exception_handler)(regs))
+ return;
+#endif
+ printf("Bad trap at PC: %lx, SR: %lx, vector=%lx\n",
+ regs->nip, regs->msr, regs->trap);
+ _exception(0, regs);
+}
+
+#if (CONFIG_COMMANDS & CFG_CMD_BEDBUG)
+extern void do_bedbug_breakpoint(struct pt_regs *);
+#endif
+
+void
+DebugException(struct pt_regs *regs)
+{
+
+ printf("Debugger trap at @ %lx\n", regs->nip );
+ show_regs(regs);
+#if (CONFIG_COMMANDS & CFG_CMD_BEDBUG)
+ do_bedbug_breakpoint( regs );
+#endif
+}
+
+/* Probe an address by reading. If not present, return -1, otherwise
+ * return 0.
+ */
+int
+addr_probe(uint *addr)
+{
+#if 0
+ int retval;
+
+ __asm__ __volatile__( \
+ "1: lwz %0,0(%1)\n" \
+ " eieio\n" \
+ " li %0,0\n" \
+ "2:\n" \
+ ".section .fixup,\"ax\"\n" \
+ "3: li %0,-1\n" \
+ " b 2b\n" \
+ ".section __ex_table,\"a\"\n" \
+ " .align 2\n" \
+ " .long 1b,3b\n" \
+ ".text" \
+ : "=r" (retval) : "r"(addr));
+
+ return (retval);
+#endif
+ return 0;
+}
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