diff options
Diffstat (limited to 'arch/sh')
| -rw-r--r-- | arch/sh/config.mk | 34 | ||||
| -rw-r--r-- | arch/sh/lib/Makefile | 48 | ||||
| -rw-r--r-- | arch/sh/lib/board.c | 211 | ||||
| -rw-r--r-- | arch/sh/lib/bootm.c | 70 | ||||
| -rw-r--r-- | arch/sh/lib/time.c | 141 | ||||
| -rw-r--r-- | arch/sh/lib/time_sh2.c | 117 |
6 files changed, 621 insertions, 0 deletions
diff --git a/arch/sh/config.mk b/arch/sh/config.mk new file mode 100644 index 00000000000..797bf4c2269 --- /dev/null +++ b/arch/sh/config.mk @@ -0,0 +1,34 @@ +# +# (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 +# + +CROSS_COMPILE ?= sh4-linux- + +STANDALONE_LOAD_ADDR = 0x8C000000 +ifeq ($(CPU),sh2) +STANDALONE_LOAD_ADDR += -EB +endif + +PLATFORM_CPPFLAGS += -DCONFIG_SH -D__SH__ +PLATFORM_LDFLAGS += -e $(TEXT_BASE) --defsym reloc_dst=$(TEXT_BASE) + +LDSCRIPT := $(SRCTREE)/$(CPUDIR)/u-boot.lds diff --git a/arch/sh/lib/Makefile b/arch/sh/lib/Makefile new file mode 100644 index 00000000000..f7c6479426d --- /dev/null +++ b/arch/sh/lib/Makefile @@ -0,0 +1,48 @@ +# +# Copyright (c) 2007 +# Nobuhiro Iwamatsu <iwamatsu@nigauri.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. +# +# 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 = $(obj)lib$(ARCH).a + +SOBJS-y += + +COBJS-y += board.o +COBJS-y += bootm.o +ifeq ($(CONFIG_SH2),y) +COBJS-y += time_sh2.o +else +COBJS-y += time.o +endif + +SRCS := $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c) +OBJS := $(addprefix $(obj),$(SOBJS-y) $(COBJS-y)) + +$(LIB): $(obj).depend $(OBJS) + $(AR) $(ARFLAGS) $@ $(OBJS) + +######################################################################### + +# defines $(obj).depend target +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### diff --git a/arch/sh/lib/board.c b/arch/sh/lib/board.c new file mode 100644 index 00000000000..c97e20c3e1c --- /dev/null +++ b/arch/sh/lib/board.c @@ -0,0 +1,211 @@ +/* + * Copyright (C) 2007,2008 + * Nobuhiro Iwamatsu <iwamatsu@nigauri.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. + * + * 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 <command.h> +#include <malloc.h> +#include <stdio_dev.h> +#include <timestamp.h> +#include <version.h> +#include <watchdog.h> +#include <net.h> +#include <environment.h> + +#ifdef CONFIG_BITBANGMII +#include <miiphy.h> +#endif + +extern int cpu_init(void); +extern int board_init(void); +extern int dram_init(void); +extern int timer_init(void); + +const char version_string[] = U_BOOT_VERSION" ("U_BOOT_DATE" - "U_BOOT_TIME")"; + +unsigned long monitor_flash_len = CONFIG_SYS_MONITOR_LEN; + +static int sh_flash_init(void) +{ + DECLARE_GLOBAL_DATA_PTR; + + gd->bd->bi_flashsize = flash_init(); + printf("FLASH: %ldMB\n", gd->bd->bi_flashsize / (1024*1024)); + + return 0; +} + +#if defined(CONFIG_CMD_NAND) +# include <nand.h> +# define INIT_FUNC_NAND_INIT nand_init, +#else +# define INIT_FUNC_NAND_INIT +#endif /* CONFIG_CMD_NAND */ + +#if defined(CONFIG_WATCHDOG) +extern int watchdog_init(void); +extern int watchdog_disable(void); +# define INIT_FUNC_WATCHDOG_INIT watchdog_init, +# define WATCHDOG_DISABLE watchdog_disable +#else +# define INIT_FUNC_WATCHDOG_INIT +# define WATCHDOG_DISABLE +#endif /* CONFIG_WATCHDOG */ + +#if defined(CONFIG_CMD_IDE) +# include <ide.h> +# define INIT_FUNC_IDE_INIT ide_init, +#else +# define INIT_FUNC_IDE_INIT +#endif /* CONFIG_CMD_IDE */ + +#if defined(CONFIG_PCI) +#include <pci.h> +static int sh_pci_init(void) +{ + pci_init(); + return 0; +} +# define INIT_FUNC_PCI_INIT sh_pci_init, +#else +# define INIT_FUNC_PCI_INIT +#endif /* CONFIG_PCI */ + +static int sh_mem_env_init(void) +{ + mem_malloc_init(TEXT_BASE - CONFIG_SYS_GBL_DATA_SIZE - + CONFIG_SYS_MALLOC_LEN, CONFIG_SYS_MALLOC_LEN - 16); + env_relocate(); + jumptable_init(); + return 0; +} + +#if defined(CONFIG_CMD_NET) +static int sh_net_init(void) +{ + DECLARE_GLOBAL_DATA_PTR; + gd->bd->bi_ip_addr = getenv_IPaddr("ipaddr"); + return 0; +} +#endif + +typedef int (init_fnc_t) (void); + +init_fnc_t *init_sequence[] = +{ + cpu_init, /* basic cpu dependent setup */ + board_init, /* basic board dependent setup */ + interrupt_init, /* set up exceptions */ + env_init, /* event init */ + serial_init, /* SCIF init */ + INIT_FUNC_WATCHDOG_INIT /* watchdog init */ + console_init_f, + display_options, + checkcpu, + checkboard, /* Check support board */ + dram_init, /* SDRAM init */ + timer_init, /* SuperH Timer (TCNT0 only) init */ + sh_mem_env_init, + sh_flash_init, /* Flash memory(NOR) init*/ + INIT_FUNC_NAND_INIT/* Flash memory (NAND) init */ + INIT_FUNC_PCI_INIT /* PCI init */ + stdio_init, + console_init_r, + interrupt_init, +#ifdef BOARD_LATE_INIT + board_late_init, +#endif +#if defined(CONFIG_CMD_NET) + sh_net_init, /* SH specific eth init */ +#endif + NULL /* Terminate this list */ +}; + +void sh_generic_init(void) +{ + DECLARE_GLOBAL_DATA_PTR; + + bd_t *bd; + init_fnc_t **init_fnc_ptr; + + memset(gd, 0, CONFIG_SYS_GBL_DATA_SIZE); + + gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */ + + gd->bd = (bd_t *)(gd + 1); /* At end of global data */ + gd->baudrate = CONFIG_BAUDRATE; + + gd->cpu_clk = CONFIG_SYS_CLK_FREQ; + + bd = gd->bd; + bd->bi_memstart = CONFIG_SYS_SDRAM_BASE; + bd->bi_memsize = CONFIG_SYS_SDRAM_SIZE; + bd->bi_flashstart = CONFIG_SYS_FLASH_BASE; +#if defined(CONFIG_SYS_SRAM_BASE) && defined(CONFIG_SYS_SRAM_SIZE) + bd->bi_sramstart = CONFIG_SYS_SRAM_BASE; + bd->bi_sramsize = CONFIG_SYS_SRAM_SIZE; +#endif + bd->bi_baudrate = CONFIG_BAUDRATE; + + for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) { + WATCHDOG_RESET(); + if ((*init_fnc_ptr) () != 0) + hang(); + } + +#ifdef CONFIG_WATCHDOG + /* disable watchdog if environment is set */ + { + char *s = getenv("watchdog"); + if (s != NULL) + if (strncmp(s, "off", 3) == 0) + WATCHDOG_DISABLE(); + } +#endif /* CONFIG_WATCHDOG*/ + + +#ifdef CONFIG_BITBANGMII + bb_miiphy_init(); +#endif +#if defined(CONFIG_CMD_NET) + { + char *s; + puts("Net: "); + eth_initialize(gd->bd); + + s = getenv("bootfile"); + if (s != NULL) + copy_filename(BootFile, s, sizeof(BootFile)); + } +#endif /* CONFIG_CMD_NET */ + + while (1) { + WATCHDOG_RESET(); + main_loop(); + } +} + +/***********************************************************************/ + +void hang(void) +{ + puts("Board ERROR\n"); + for (;;) + ; +} diff --git a/arch/sh/lib/bootm.c b/arch/sh/lib/bootm.c new file mode 100644 index 00000000000..ae1f869f10d --- /dev/null +++ b/arch/sh/lib/bootm.c @@ -0,0 +1,70 @@ +/* + * (C) Copyright 2003 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * (c) Copyright 2008 Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com> + * (c) Copyright 2008 Renesas Solutions Corp. + * + * 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 <command.h> +#include <asm/byteorder.h> + +#ifdef CONFIG_SYS_DEBUG +static void hexdump(unsigned char *buf, int len) +{ + int i; + + for (i = 0; i < len; i++) { + if ((i % 16) == 0) + printf("%s%08x: ", i ? "\n" : "", + (unsigned int)&buf[i]); + printf("%02x ", buf[i]); + } + printf("\n"); +} +#endif + +int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images) +{ + /* Linux kernel load address */ + void (*kernel) (void) = (void (*)(void))images->ep; + /* empty_zero_page */ + unsigned char *param + = (unsigned char *)image_get_load(images->legacy_hdr_os); + /* Linux kernel command line */ + char *cmdline = (char *)param + 0x100; + /* PAGE_SIZE */ + unsigned long size = images->ep - (unsigned long)param; + char *bootargs = getenv("bootargs"); + + if ((flag != 0) && (flag != BOOTM_STATE_OS_GO)) + return 1; + + /* Setup parameters */ + memset(param, 0, size); /* Clear zero page */ + strcpy(cmdline, bootargs); + + kernel(); + /* does not return */ + + return 1; +} diff --git a/arch/sh/lib/time.c b/arch/sh/lib/time.c new file mode 100644 index 00000000000..9a8f89aef60 --- /dev/null +++ b/arch/sh/lib/time.c @@ -0,0 +1,141 @@ +/* + * (C) Copyright 2009 + * Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> + * + * (C) Copyright 2007-2008 + * Nobobuhiro Iwamatsu <iwamatsu@nigauri.org> + * + * (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 <common.h> +#include <div64.h> +#include <asm/processor.h> +#include <asm/clk.h> +#include <asm/io.h> + +#define TMU_MAX_COUNTER (~0UL) + +static ulong timer_freq; + +static inline unsigned long long tick_to_time(unsigned long long tick) +{ + tick *= CONFIG_SYS_HZ; + do_div(tick, timer_freq); + + return tick; +} + +static inline unsigned long long usec_to_tick(unsigned long long usec) +{ + usec *= timer_freq; + do_div(usec, 1000000); + + return usec; +} + +static void tmu_timer_start (unsigned int timer) +{ + if (timer > 2) + return; + writeb(readb(TSTR) | (1 << timer), TSTR); +} + +static void tmu_timer_stop (unsigned int timer) +{ + if (timer > 2) + return; + writeb(readb(TSTR) & ~(1 << timer), TSTR); +} + +int timer_init (void) +{ + /* Divide clock by CONFIG_SYS_TMU_CLK_DIV */ + u16 bit = 0; + + switch (CONFIG_SYS_TMU_CLK_DIV) { + case 1024: + bit = 4; + break; + case 256: + bit = 3; + break; + case 64: + bit = 2; + break; + case 16: + bit = 1; + break; + case 4: + default: + break; + } + writew(readw(TCR0) | bit, TCR0); + + /* Calc clock rate */ + timer_freq = get_tmu0_clk_rate() >> ((bit + 1) * 2); + + tmu_timer_stop(0); + tmu_timer_start(0); + + return 0; +} + +unsigned long long get_ticks (void) +{ + return 0 - readl(TCNT0); +} + +void __udelay (unsigned long usec) +{ + unsigned long long tmp; + ulong tmo; + + tmo = usec_to_tick(usec); + tmp = get_ticks() + tmo; /* get current timestamp */ + + while (get_ticks() < tmp) /* loop till event */ + /*NOP*/; +} + +unsigned long get_timer (unsigned long base) +{ + /* return msec */ + return tick_to_time(get_ticks()) - base; +} + +void set_timer (unsigned long t) +{ + writel((0 - t), TCNT0); +} + +void reset_timer (void) +{ + tmu_timer_stop(0); + set_timer (0); + tmu_timer_start(0); +} + +unsigned long get_tbclk (void) +{ + return timer_freq; +} diff --git a/arch/sh/lib/time_sh2.c b/arch/sh/lib/time_sh2.c new file mode 100644 index 00000000000..789b46f0e02 --- /dev/null +++ b/arch/sh/lib/time_sh2.c @@ -0,0 +1,117 @@ +/* + * Copyright (C) 2007,2008 Nobobuhiro Iwamatsu <iwamatsu@nigauri.org> + * Copyright (C) 2008 Renesas Solutions Corp. + * + * (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 <common.h> +#include <asm/io.h> +#include <asm/processor.h> + +#define CMT_CMCSR_INIT 0x0001 /* PCLK/32 */ +#define CMT_CMCSR_CALIB 0x0000 +#define CMT_MAX_COUNTER (0xFFFFFFFF) +#define CMT_TIMER_RESET (0xFFFF) + +static vu_long cmt0_timer; + +static void cmt_timer_start(unsigned int timer) +{ + writew(readw(CMSTR) | 0x01, CMSTR); +} + +static void cmt_timer_stop(unsigned int timer) +{ + writew(readw(CMSTR) & ~0x01, CMSTR); +} + +int timer_init(void) +{ + cmt0_timer = 0; + /* Divide clock by 32 */ + readw(CMCSR_0); + writew(CMT_CMCSR_INIT, CMCSR_0); + + /* User Device 0 only */ + cmt_timer_stop(0); + set_timer(CMT_TIMER_RESET); + cmt_timer_start(0); + + return 0; +} + +unsigned long long get_ticks(void) +{ + return cmt0_timer; +} + +static vu_long cmcnt = 0; +static unsigned long get_usec (void) +{ + ulong data = readw(CMCNT_0); + + if (data >= cmcnt) + cmcnt = data - cmcnt; + else + cmcnt = (CMT_TIMER_RESET - cmcnt) + data; + + if ((cmt0_timer + cmcnt) > CMT_MAX_COUNTER) + cmt0_timer = ((cmt0_timer + cmcnt) - CMT_MAX_COUNTER); + else + cmt0_timer += cmcnt; + + cmcnt = data; + return cmt0_timer; +} + +/* return msec */ +ulong get_timer(ulong base) +{ + return (get_usec() / 1000) - base; +} + +void set_timer(ulong t) +{ + writew((u16) t, CMCOR_0); +} + +void reset_timer(void) +{ + cmt_timer_stop(0); + set_timer(CMT_TIMER_RESET); + cmt0_timer = 0; + cmt_timer_start(0); +} + +void __udelay(unsigned long usec) +{ + unsigned long end = get_usec() + usec; + + while (get_usec() < end) + continue; +} + +unsigned long get_tbclk(void) +{ + return CONFIG_SYS_HZ; +} |