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-rw-r--r--arch/ppc/kernel/Makefile1
-rw-r--r--arch/ppc/kernel/head_44x.S4
-rw-r--r--arch/ppc/kernel/misc.S145
-rw-r--r--arch/ppc/kernel/rio.c52
-rw-r--r--arch/ppc/kernel/traps.c12
5 files changed, 188 insertions, 26 deletions
diff --git a/arch/ppc/kernel/Makefile b/arch/ppc/kernel/Makefile
index c610ca933a25..76a55a438f23 100644
--- a/arch/ppc/kernel/Makefile
+++ b/arch/ppc/kernel/Makefile
@@ -22,6 +22,7 @@ obj-$(CONFIG_POWER4) += cpu_setup_power4.o
obj-$(CONFIG_MODULES) += module.o ppc_ksyms.o
obj-$(CONFIG_NOT_COHERENT_CACHE) += dma-mapping.o
obj-$(CONFIG_PCI) += pci.o
+obj-$(CONFIG_RAPIDIO) += rio.o
obj-$(CONFIG_KGDB) += ppc-stub.o
obj-$(CONFIG_SMP) += smp.o smp-tbsync.o
obj-$(CONFIG_TAU) += temp.o
diff --git a/arch/ppc/kernel/head_44x.S b/arch/ppc/kernel/head_44x.S
index 8b49679fad54..677c571aa276 100644
--- a/arch/ppc/kernel/head_44x.S
+++ b/arch/ppc/kernel/head_44x.S
@@ -190,8 +190,8 @@ skpinv: addi r4,r4,1 /* Increment */
/* xlat fields */
lis r4,UART0_PHYS_IO_BASE@h /* RPN depends on SoC */
-#ifndef CONFIG_440EP
- ori r4,r4,0x0001 /* ERPN is 1 for second 4GB page */
+#ifdef UART0_PHYS_ERPN
+ ori r4,r4,UART0_PHYS_ERPN /* Add ERPN if above 4GB */
#endif
/* attrib fields */
diff --git a/arch/ppc/kernel/misc.S b/arch/ppc/kernel/misc.S
index 3056ede2424d..ae6af29938a1 100644
--- a/arch/ppc/kernel/misc.S
+++ b/arch/ppc/kernel/misc.S
@@ -25,6 +25,11 @@
#include <asm/thread_info.h>
#include <asm/asm-offsets.h>
+#ifdef CONFIG_8xx
+#define ISYNC_8xx isync
+#else
+#define ISYNC_8xx
+#endif
.text
.align 5
@@ -800,8 +805,18 @@ _GLOBAL(_insb)
subi r4,r4,1
blelr-
00: lbz r5,0(r3)
- eieio
- stbu r5,1(r4)
+01: eieio
+02: stbu r5,1(r4)
+ ISYNC_8xx
+ .section .fixup,"ax"
+03: blr
+ .text
+ .section __ex_table, "a"
+ .align 2
+ .long 00b, 03b
+ .long 01b, 03b
+ .long 02b, 03b
+ .text
bdnz 00b
blr
@@ -811,8 +826,18 @@ _GLOBAL(_outsb)
subi r4,r4,1
blelr-
00: lbzu r5,1(r4)
- stb r5,0(r3)
- eieio
+01: stb r5,0(r3)
+02: eieio
+ ISYNC_8xx
+ .section .fixup,"ax"
+03: blr
+ .text
+ .section __ex_table, "a"
+ .align 2
+ .long 00b, 03b
+ .long 01b, 03b
+ .long 02b, 03b
+ .text
bdnz 00b
blr
@@ -822,8 +847,18 @@ _GLOBAL(_insw)
subi r4,r4,2
blelr-
00: lhbrx r5,0,r3
- eieio
- sthu r5,2(r4)
+01: eieio
+02: sthu r5,2(r4)
+ ISYNC_8xx
+ .section .fixup,"ax"
+03: blr
+ .text
+ .section __ex_table, "a"
+ .align 2
+ .long 00b, 03b
+ .long 01b, 03b
+ .long 02b, 03b
+ .text
bdnz 00b
blr
@@ -833,8 +868,18 @@ _GLOBAL(_outsw)
subi r4,r4,2
blelr-
00: lhzu r5,2(r4)
- eieio
- sthbrx r5,0,r3
+01: eieio
+02: sthbrx r5,0,r3
+ ISYNC_8xx
+ .section .fixup,"ax"
+03: blr
+ .text
+ .section __ex_table, "a"
+ .align 2
+ .long 00b, 03b
+ .long 01b, 03b
+ .long 02b, 03b
+ .text
bdnz 00b
blr
@@ -844,8 +889,18 @@ _GLOBAL(_insl)
subi r4,r4,4
blelr-
00: lwbrx r5,0,r3
- eieio
- stwu r5,4(r4)
+01: eieio
+02: stwu r5,4(r4)
+ ISYNC_8xx
+ .section .fixup,"ax"
+03: blr
+ .text
+ .section __ex_table, "a"
+ .align 2
+ .long 00b, 03b
+ .long 01b, 03b
+ .long 02b, 03b
+ .text
bdnz 00b
blr
@@ -855,8 +910,18 @@ _GLOBAL(_outsl)
subi r4,r4,4
blelr-
00: lwzu r5,4(r4)
- stwbrx r5,0,r3
- eieio
+01: stwbrx r5,0,r3
+02: eieio
+ ISYNC_8xx
+ .section .fixup,"ax"
+03: blr
+ .text
+ .section __ex_table, "a"
+ .align 2
+ .long 00b, 03b
+ .long 01b, 03b
+ .long 02b, 03b
+ .text
bdnz 00b
blr
@@ -867,8 +932,18 @@ _GLOBAL(_insw_ns)
subi r4,r4,2
blelr-
00: lhz r5,0(r3)
- eieio
- sthu r5,2(r4)
+01: eieio
+02: sthu r5,2(r4)
+ ISYNC_8xx
+ .section .fixup,"ax"
+03: blr
+ .text
+ .section __ex_table, "a"
+ .align 2
+ .long 00b, 03b
+ .long 01b, 03b
+ .long 02b, 03b
+ .text
bdnz 00b
blr
@@ -879,8 +954,18 @@ _GLOBAL(_outsw_ns)
subi r4,r4,2
blelr-
00: lhzu r5,2(r4)
- sth r5,0(r3)
- eieio
+01: sth r5,0(r3)
+02: eieio
+ ISYNC_8xx
+ .section .fixup,"ax"
+03: blr
+ .text
+ .section __ex_table, "a"
+ .align 2
+ .long 00b, 03b
+ .long 01b, 03b
+ .long 02b, 03b
+ .text
bdnz 00b
blr
@@ -891,8 +976,18 @@ _GLOBAL(_insl_ns)
subi r4,r4,4
blelr-
00: lwz r5,0(r3)
- eieio
- stwu r5,4(r4)
+01: eieio
+02: stwu r5,4(r4)
+ ISYNC_8xx
+ .section .fixup,"ax"
+03: blr
+ .text
+ .section __ex_table, "a"
+ .align 2
+ .long 00b, 03b
+ .long 01b, 03b
+ .long 02b, 03b
+ .text
bdnz 00b
blr
@@ -903,8 +998,18 @@ _GLOBAL(_outsl_ns)
subi r4,r4,4
blelr-
00: lwzu r5,4(r4)
- stw r5,0(r3)
- eieio
+01: stw r5,0(r3)
+02: eieio
+ ISYNC_8xx
+ .section .fixup,"ax"
+03: blr
+ .text
+ .section __ex_table, "a"
+ .align 2
+ .long 00b, 03b
+ .long 01b, 03b
+ .long 02b, 03b
+ .text
bdnz 00b
blr
diff --git a/arch/ppc/kernel/rio.c b/arch/ppc/kernel/rio.c
new file mode 100644
index 000000000000..29487fedfc76
--- /dev/null
+++ b/arch/ppc/kernel/rio.c
@@ -0,0 +1,52 @@
+/*
+ * RapidIO PPC32 support
+ *
+ * Copyright 2005 MontaVista Software, Inc.
+ * Matt Porter <mporter@kernel.crashing.org>
+ *
+ * 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.
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/rio.h>
+
+#include <asm/rio.h>
+
+/**
+ * platform_rio_init - Do platform specific RIO init
+ *
+ * Any platform specific initialization of RapdIO
+ * hardware is done here as well as registration
+ * of any active master ports in the system.
+ */
+void __attribute__ ((weak))
+ platform_rio_init(void)
+{
+ printk(KERN_WARNING "RIO: No platform_rio_init() present\n");
+}
+
+/**
+ * ppc_rio_init - Do PPC32 RIO init
+ *
+ * Calls platform-specific RIO init code and then calls
+ * rio_init_mports() to initialize any master ports that
+ * have been registered with the RIO subsystem.
+ */
+static int __init ppc_rio_init(void)
+{
+ printk(KERN_INFO "RIO: RapidIO init\n");
+
+ /* Platform specific initialization */
+ platform_rio_init();
+
+ /* Enumerate all registered ports */
+ rio_init_mports();
+
+ return 0;
+}
+
+subsys_initcall(ppc_rio_init);
diff --git a/arch/ppc/kernel/traps.c b/arch/ppc/kernel/traps.c
index 16adde6b429d..9dbc4d28fa28 100644
--- a/arch/ppc/kernel/traps.c
+++ b/arch/ppc/kernel/traps.c
@@ -49,7 +49,7 @@ extern int xmon_sstep(struct pt_regs *regs);
extern int xmon_iabr_match(struct pt_regs *regs);
extern int xmon_dabr_match(struct pt_regs *regs);
-void (*debugger)(struct pt_regs *regs) = xmon;
+int (*debugger)(struct pt_regs *regs) = xmon;
int (*debugger_bpt)(struct pt_regs *regs) = xmon_bpt;
int (*debugger_sstep)(struct pt_regs *regs) = xmon_sstep;
int (*debugger_iabr_match)(struct pt_regs *regs) = xmon_iabr_match;
@@ -57,7 +57,7 @@ int (*debugger_dabr_match)(struct pt_regs *regs) = xmon_dabr_match;
void (*debugger_fault_handler)(struct pt_regs *regs);
#else
#ifdef CONFIG_KGDB
-void (*debugger)(struct pt_regs *regs);
+int (*debugger)(struct pt_regs *regs);
int (*debugger_bpt)(struct pt_regs *regs);
int (*debugger_sstep)(struct pt_regs *regs);
int (*debugger_iabr_match)(struct pt_regs *regs);
@@ -159,7 +159,7 @@ void _exception(int signr, struct pt_regs *regs, int code, unsigned long addr)
*/
static inline int check_io_access(struct pt_regs *regs)
{
-#ifdef CONFIG_PPC_PMAC
+#if defined CONFIG_PPC_PMAC || defined CONFIG_8xx
unsigned long msr = regs->msr;
const struct exception_table_entry *entry;
unsigned int *nip = (unsigned int *)regs->nip;
@@ -178,7 +178,11 @@ static inline int check_io_access(struct pt_regs *regs)
nip -= 2;
else if (*nip == 0x4c00012c) /* isync */
--nip;
- if (*nip == 0x7c0004ac || (*nip >> 26) == 3) {
+ /* eieio from I/O string functions */
+ else if ((*nip) == 0x7c0006ac || *(nip+1) == 0x7c0006ac)
+ nip += 2;
+ if (*nip == 0x7c0004ac || (*nip >> 26) == 3 ||
+ (*(nip+1) >> 26) == 3) {
/* sync or twi */
unsigned int rb;
generated by cgit v1.2.3 (git 2.0.4) at 2024-10-25 06:30:16 +0000