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-rw-r--r--lib_sh/board.c115
-rw-r--r--lib_sh/bootm.c45
2 files changed, 86 insertions, 74 deletions
diff --git a/lib_sh/board.c b/lib_sh/board.c
index eb81bd9..6dfab4e 100644
--- a/lib_sh/board.c
+++ b/lib_sh/board.c
@@ -23,6 +23,7 @@
#include <malloc.h>
#include <devices.h>
#include <version.h>
+#include <watchdog.h>
#include <net.h>
#include <environment.h>
@@ -30,7 +31,6 @@ extern void malloc_bin_reloc (void);
extern int cpu_init(void);
extern int board_init(void);
extern int dram_init(void);
-extern int watchdog_init(void);
extern int timer_init(void);
const char version_string[] = U_BOOT_VERSION" (" __DATE__ " - " __TIME__ ")";
@@ -41,17 +41,17 @@ static unsigned long mem_malloc_start;
static unsigned long mem_malloc_end;
static unsigned long mem_malloc_brk;
-static void mem_malloc_init (void)
+static void mem_malloc_init(void)
{
mem_malloc_start = (TEXT_BASE - CFG_GBL_DATA_SIZE - CFG_MALLOC_LEN);
mem_malloc_end = (mem_malloc_start + CFG_MALLOC_LEN - 16);
mem_malloc_brk = mem_malloc_start;
- memset ((void *) mem_malloc_start, 0,
+ memset((void *) mem_malloc_start, 0,
(mem_malloc_end - mem_malloc_start));
}
-void *sbrk (ptrdiff_t increment)
+void *sbrk(ptrdiff_t increment)
{
unsigned long old = mem_malloc_brk;
unsigned long new = old + increment;
@@ -70,37 +70,45 @@ static int sh_flash_init(void)
DECLARE_GLOBAL_DATA_PTR;
gd->bd->bi_flashsize = flash_init();
- printf("FLASH: %dMB\n", gd->bd->bi_flashsize / (1024*1024));
+ printf("FLASH: %ldMB\n", gd->bd->bi_flashsize / (1024*1024));
return 0;
}
#if defined(CONFIG_CMD_NAND)
-#include <nand.h>
-static int sh_nand_init(void)
-{
- printf("NAND: ");
- nand_init(); /* go init the NAND */
- return 0;
-}
+# 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>
-static int sh_marubun_init(void)
-{
- puts ("IDE: ");
- ide_init();
- return 0;
-}
-#endif /* (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)
@@ -123,7 +131,8 @@ static int sh_net_init(void)
s = getenv("ethaddr");
for (i = 0; i < 6; ++i) {
gd->bd->bi_enetaddr[i] = s ? simple_strtoul(s, &e, 16) : 0;
- if (s) s = (*e) ? e + 1 : e;
+ if (s)
+ s = (*e) ? e + 1 : e;
}
return 0;
@@ -136,24 +145,20 @@ init_fnc_t *init_sequence[] =
{
cpu_init, /* basic cpu dependent setup */
board_init, /* basic board dependent setup */
- interrupt_init, /* set up exceptions */
+ interrupt_init, /* set up exceptions */
env_init, /* event init */
- serial_init, /* SCIF init */
- watchdog_init, /* watchdog 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_flash_init, /* Flash memory(NOR) init*/
+ sh_flash_init, /* Flash memory(NOR) init*/
sh_mem_env_init,
-#if defined(CONFIG_CMD_NAND)
- sh_nand_init, /* Flash memory (NAND) init */
-#endif
-#if defined(CONFIG_PCI)
- sh_pci_init, /* PCI Init */
-#endif
+ INIT_FUNC_NAND_INIT/* Flash memory (NAND) init */
+ INIT_FUNC_PCI_INIT /* PCI init */
devices_init,
console_init_r,
interrupt_init,
@@ -166,20 +171,18 @@ init_fnc_t *init_sequence[] =
NULL /* Terminate this list */
};
-void sh_generic_init (void)
+void sh_generic_init(void)
{
DECLARE_GLOBAL_DATA_PTR;
bd_t *bd;
init_fnc_t **init_fnc_ptr;
- int i;
- char *s;
- memset (gd, 0, CFG_GBL_DATA_SIZE);
+ memset(gd, 0, CFG_GBL_DATA_SIZE);
gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
- gd->bd = (bd_t *) (gd + 1); /* At end of global data */
+ gd->bd = (bd_t *)(gd + 1); /* At end of global data */
gd->baudrate = CONFIG_BAUDRATE;
gd->cpu_clk = CONFIG_SYS_CLK_FREQ;
@@ -189,35 +192,51 @@ void sh_generic_init (void)
bd->bi_memsize = CFG_SDRAM_SIZE;
bd->bi_flashstart = CFG_FLASH_BASE;
#if defined(CFG_SRAM_BASE) && defined(CFG_SRAM_SIZE)
- bd->bi_sramstart= CFG_SRAM_BASE;
+ bd->bi_sramstart = CFG_SRAM_BASE;
bd->bi_sramsize = CFG_SRAM_SIZE;
#endif
bd->bi_baudrate = CONFIG_BAUDRATE;
- for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr , i++) {
- if ((*init_fnc_ptr) () != 0) {
+ for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
+ WATCHDOG_RESET();
+ if ((*init_fnc_ptr) () != 0)
hang();
- }
}
-#if defined(CONFIG_CMD_NET)
- puts ("Net: ");
- eth_initialize(gd->bd);
+#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*/
- if ((s = getenv ("bootfile")) != NULL) {
- copy_filename (BootFile, s, sizeof (BootFile));
+
+#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)
+void hang(void)
{
- puts ("Board ERROR\n");
- for (;;);
+ puts("Board ERROR\n");
+ for (;;)
+ ;
}
diff --git a/lib_sh/bootm.c b/lib_sh/bootm.c
index bc1c3da..e3d4985 100644
--- a/lib_sh/bootm.c
+++ b/lib_sh/bootm.c
@@ -2,6 +2,9 @@
* (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.
*
@@ -25,47 +28,37 @@
#include <command.h>
#include <asm/byteorder.h>
-/* The SH kernel reads arguments from the empty zero page at location
- * 0 at the start of SDRAM. The following are copied from
- * arch/sh/kernel/setup.c and may require tweaking if the kernel sources
- * change.
- */
-#define PARAM ((unsigned char *)CFG_SDRAM_BASE + 0x1000)
-
-#define MOUNT_ROOT_RDONLY (*(unsigned long *) (PARAM+0x000))
-#define RAMDISK_FLAGS (*(unsigned long *) (PARAM+0x004))
-#define ORIG_ROOT_DEV (*(unsigned long *) (PARAM+0x008))
-#define LOADER_TYPE (*(unsigned long *) (PARAM+0x00c))
-#define INITRD_START (*(unsigned long *) (PARAM+0x010))
-#define INITRD_SIZE (*(unsigned long *) (PARAM+0x014))
-/* ... */
-#define COMMAND_LINE ((char *) (PARAM+0x100))
-
-#define RAMDISK_IMAGE_START_MASK 0x07FF
-
#ifdef CFG_DEBUG
-static void hexdump (unsigned char *buf, int len)
+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("%s%08x: ", i ? "\n" : "",
+ (unsigned int)&buf[i]);
+ printf("%02x ", buf[i]);
}
- printf ("\n");
+ printf("\n");
}
#endif
int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images)
{
- char *bootargs = getenv("bootargs");
-
+ /* 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");
/* Setup parameters */
- memset(PARAM, 0, 0x1000); /* Clear zero page */
- strcpy(COMMAND_LINE, bootargs);
+ memset(param, 0, size); /* Clear zero page */
+ strcpy(cmdline, bootargs);
kernel();
/* does not return */
generated by cgit v1.1 at 2024-12-12 08:06:06 +0000