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-rw-r--r--lib_mips/mips_linux.c372
1 files changed, 190 insertions, 182 deletions
diff --git a/lib_mips/mips_linux.c b/lib_mips/mips_linux.c
index 5469d50..0f01198 100644
--- a/lib_mips/mips_linux.c
+++ b/lib_mips/mips_linux.c
@@ -53,225 +53,233 @@ static void linux_params_init (ulong start, char * commandline);
static void linux_env_set (char * env_name, char * env_val);
-void do_bootm_linux(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
- ulong addr, ulong *len_ptr, int verify)
+void do_bootm_linux (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[],
+ ulong addr, ulong * len_ptr, int verify)
{
- DECLARE_GLOBAL_DATA_PTR;
+ DECLARE_GLOBAL_DATA_PTR;
- ulong len = 0, checksum;
- ulong initrd_start, initrd_end;
- ulong data;
- void (*theKernel)(int, char **, char **, int *);
- image_header_t *hdr = &header;
- char *commandline = getenv("bootargs");
- char env_buf[12];
+ ulong len = 0, checksum;
+ ulong initrd_start, initrd_end;
+ ulong data;
+ void (*theKernel) (int, char **, char **, int *);
+ image_header_t *hdr = &header;
+ char *commandline = getenv ("bootargs");
+ char env_buf[12];
- theKernel = (void (*)(int, char **, char **, int *))ntohl(hdr->ih_ep);
-
- /*
- * Check if there is an initrd image
- */
- if (argc >= 3) {
- SHOW_BOOT_PROGRESS (9);
-
- addr = simple_strtoul(argv[2], NULL, 16);
-
- printf ("## Loading Ramdisk Image at %08lx ...\n", addr);
-
- /* Copy header so we can blank CRC field for re-calculation */
- memcpy (&header, (char *)addr, sizeof(image_header_t));
-
- if (ntohl(hdr->ih_magic) != IH_MAGIC) {
- printf ("Bad Magic Number\n");
- SHOW_BOOT_PROGRESS (-10);
- do_reset (cmdtp, flag, argc, argv);
- }
-
- data = (ulong)&header;
- len = sizeof(image_header_t);
-
- checksum = ntohl(hdr->ih_hcrc);
- hdr->ih_hcrc = 0;
-
- if (crc32 (0, (char *)data, len) != checksum) {
- printf ("Bad Header Checksum\n");
- SHOW_BOOT_PROGRESS (-11);
- do_reset (cmdtp, flag, argc, argv);
- }
-
- SHOW_BOOT_PROGRESS (10);
-
- print_image_hdr (hdr);
-
- data = addr + sizeof(image_header_t);
- len = ntohl(hdr->ih_size);
-
- if (verify) {
- ulong csum = 0;
-
- printf (" Verifying Checksum ... ");
- csum = crc32 (0, (char *)data, len);
- if (csum != ntohl(hdr->ih_dcrc)) {
- printf ("Bad Data CRC\n");
- SHOW_BOOT_PROGRESS (-12);
- do_reset (cmdtp, flag, argc, argv);
- }
- printf ("OK\n");
- }
-
- SHOW_BOOT_PROGRESS (11);
-
- if ((hdr->ih_os != IH_OS_LINUX) ||
- (hdr->ih_arch != IH_CPU_MIPS) ||
- (hdr->ih_type != IH_TYPE_RAMDISK) ) {
- printf ("No Linux MIPS Ramdisk Image\n");
- SHOW_BOOT_PROGRESS (-13);
- do_reset (cmdtp, flag, argc, argv);
- }
+ theKernel =
+ (void (*)(int, char **, char **, int *)) ntohl (hdr->ih_ep);
/*
- * Now check if we have a multifile image
+ * Check if there is an initrd image
*/
- } else if ((hdr->ih_type==IH_TYPE_MULTI) && (len_ptr[1])) {
- ulong tail = ntohl(len_ptr[0]) % 4;
- int i;
-
- SHOW_BOOT_PROGRESS (13);
-
- /* skip kernel length and terminator */
- data = (ulong)(&len_ptr[2]);
- /* skip any additional image length fields */
- for (i=1; len_ptr[i]; ++i)
- data += 4;
- /* add kernel length, and align */
- data += ntohl(len_ptr[0]);
- if (tail) {
- data += 4 - tail;
+ if (argc >= 3) {
+ SHOW_BOOT_PROGRESS (9);
+
+ addr = simple_strtoul (argv[2], NULL, 16);
+
+ printf ("## Loading Ramdisk Image at %08lx ...\n", addr);
+
+ /* Copy header so we can blank CRC field for re-calculation */
+ memcpy (&header, (char *) addr, sizeof (image_header_t));
+
+ if (ntohl (hdr->ih_magic) != IH_MAGIC) {
+ printf ("Bad Magic Number\n");
+ SHOW_BOOT_PROGRESS (-10);
+ do_reset (cmdtp, flag, argc, argv);
+ }
+
+ data = (ulong) & header;
+ len = sizeof (image_header_t);
+
+ checksum = ntohl (hdr->ih_hcrc);
+ hdr->ih_hcrc = 0;
+
+ if (crc32 (0, (char *) data, len) != checksum) {
+ printf ("Bad Header Checksum\n");
+ SHOW_BOOT_PROGRESS (-11);
+ do_reset (cmdtp, flag, argc, argv);
+ }
+
+ SHOW_BOOT_PROGRESS (10);
+
+ print_image_hdr (hdr);
+
+ data = addr + sizeof (image_header_t);
+ len = ntohl (hdr->ih_size);
+
+ if (verify) {
+ ulong csum = 0;
+
+ printf (" Verifying Checksum ... ");
+ csum = crc32 (0, (char *) data, len);
+ if (csum != ntohl (hdr->ih_dcrc)) {
+ printf ("Bad Data CRC\n");
+ SHOW_BOOT_PROGRESS (-12);
+ do_reset (cmdtp, flag, argc, argv);
+ }
+ printf ("OK\n");
+ }
+
+ SHOW_BOOT_PROGRESS (11);
+
+ if ((hdr->ih_os != IH_OS_LINUX) ||
+ (hdr->ih_arch != IH_CPU_MIPS) ||
+ (hdr->ih_type != IH_TYPE_RAMDISK)) {
+ printf ("No Linux MIPS Ramdisk Image\n");
+ SHOW_BOOT_PROGRESS (-13);
+ do_reset (cmdtp, flag, argc, argv);
+ }
+
+ /*
+ * Now check if we have a multifile image
+ */
+ } else if ((hdr->ih_type == IH_TYPE_MULTI) && (len_ptr[1])) {
+ ulong tail = ntohl (len_ptr[0]) % 4;
+ int i;
+
+ SHOW_BOOT_PROGRESS (13);
+
+ /* skip kernel length and terminator */
+ data = (ulong) (&len_ptr[2]);
+ /* skip any additional image length fields */
+ for (i = 1; len_ptr[i]; ++i)
+ data += 4;
+ /* add kernel length, and align */
+ data += ntohl (len_ptr[0]);
+ if (tail) {
+ data += 4 - tail;
+ }
+
+ len = ntohl (len_ptr[1]);
+
+ } else {
+ /*
+ * no initrd image
+ */
+ SHOW_BOOT_PROGRESS (14);
+
+ data = 0;
}
- len = ntohl(len_ptr[1]);
-
- } else {
- /*
- * no initrd image
- */
- SHOW_BOOT_PROGRESS (14);
-
- data = 0;
- }
-
#ifdef DEBUG
- if (!data) {
- printf ("No initrd\n");
- }
+ if (!data) {
+ printf ("No initrd\n");
+ }
#endif
- if (data) {
- initrd_start = data;
- initrd_end = initrd_start + len;
- } else {
- initrd_start = 0;
- initrd_end = 0;
- }
+ if (data) {
+ initrd_start = data;
+ initrd_end = initrd_start + len;
+ } else {
+ initrd_start = 0;
+ initrd_end = 0;
+ }
- SHOW_BOOT_PROGRESS (15);
+ SHOW_BOOT_PROGRESS (15);
#ifdef DEBUG
- printf ("## Transferring control to Linux (at address %08lx) ...\n",
- (ulong)theKernel);
+ printf ("## Transferring control to Linux (at address %08lx) ...\n",
+ (ulong) theKernel);
#endif
- linux_params_init (PHYSADDR(gd->bd->bi_boot_params), commandline);
+ linux_params_init (PHYSADDR (gd->bd->bi_boot_params), commandline);
+
+#ifdef CONFIG_MEMSIZE_IN_BYTES
+ sprintf (env_buf, "%lu", gd->ram_size);
+#ifdef DEBUG
+ printf ("## Giving linux memsize in bytes, %lu\n", gd->ram_size);
+#endif
+#else
+ sprintf (env_buf, "%lu", gd->ram_size >> 20);
+#ifdef DEBUG
+ printf ("## Giving linux memsize in MB, %lu\n", gd->ram_size >> 20);
+#endif
+#endif /* CONFIG_MEMSIZE_IN_BYTES */
- sprintf (env_buf, "%lu", gd->ram_size >> 20);
- linux_env_set ("memsize", env_buf);
+ linux_env_set ("memsize", env_buf);
- sprintf (env_buf, "0x%08X", (uint)PHYSADDR(initrd_start));
- linux_env_set ("initrd_start", env_buf);
+ sprintf (env_buf, "0x%08X", (uint) PHYSADDR (initrd_start));
+ linux_env_set ("initrd_start", env_buf);
- sprintf (env_buf, "0x%X", (uint)(initrd_end - initrd_start));
- linux_env_set ("initrd_size", env_buf);
+ sprintf (env_buf, "0x%X", (uint) (initrd_end - initrd_start));
+ linux_env_set ("initrd_size", env_buf);
- sprintf (env_buf, "0x%08X", (uint)(gd->bd->bi_flashstart));
- linux_env_set ("flash_start", env_buf);
+ sprintf (env_buf, "0x%08X", (uint) (gd->bd->bi_flashstart));
+ linux_env_set ("flash_start", env_buf);
- sprintf (env_buf, "0x%X", (uint)(gd->bd->bi_flashsize));
- linux_env_set ("flash_size", env_buf);
+ sprintf (env_buf, "0x%X", (uint) (gd->bd->bi_flashsize));
+ linux_env_set ("flash_size", env_buf);
- /* we assume that the kernel is in place */
- printf("\nStarting kernel ...\n\n");
+ /* we assume that the kernel is in place */
+ printf ("\nStarting kernel ...\n\n");
- theKernel(linux_argc, linux_argv, linux_env, 0);
+ theKernel (linux_argc, linux_argv, linux_env, 0);
}
-static void linux_params_init (ulong start, char * line)
+static void linux_params_init (ulong start, char *line)
{
- char * next, * quote, * argp;
-
- linux_argc = 1;
- linux_argv = (char **) start;
- linux_argv[0] = 0;
- argp = (char *)(linux_argv + LINUX_MAX_ARGS);
-
- next = line;
-
- while (line && *line && linux_argc < LINUX_MAX_ARGS)
- {
- quote = strchr (line, '"');
- next = strchr (line, ' ');
-
- while (next != NULL && quote != NULL && quote < next)
- {
- /* we found a left quote before the next blank
- * now we have to find the matching right quote
- */
- next = strchr (quote + 1, '"');
- if (next != NULL)
- {
- quote = strchr (next + 1, '"');
- next = strchr (next + 1, ' ');
- }
- }
+ char *next, *quote, *argp;
- if (next == NULL)
- {
- next = line + strlen (line);
- }
+ linux_argc = 1;
+ linux_argv = (char **) start;
+ linux_argv[0] = 0;
+ argp = (char *) (linux_argv + LINUX_MAX_ARGS);
+
+ next = line;
- linux_argv [linux_argc] = argp;
- memcpy (argp, line, next - line);
- argp [next - line] = 0;
+ while (line && *line && linux_argc < LINUX_MAX_ARGS) {
+ quote = strchr (line, '"');
+ next = strchr (line, ' ');
- argp += next - line + 1;
- linux_argc ++;
+ while (next != NULL && quote != NULL && quote < next) {
+ /* we found a left quote before the next blank
+ * now we have to find the matching right quote
+ */
+ next = strchr (quote + 1, '"');
+ if (next != NULL) {
+ quote = strchr (next + 1, '"');
+ next = strchr (next + 1, ' ');
+ }
+ }
- if (*next) next ++;
+ if (next == NULL) {
+ next = line + strlen (line);
+ }
- line = next;
- }
+ linux_argv[linux_argc] = argp;
+ memcpy (argp, line, next - line);
+ argp[next - line] = 0;
- linux_env = (char **)(((ulong)argp + 15) & ~15);
- linux_env [0] = 0;
- linux_env_p = (char *)(linux_env + LINUX_MAX_ENVS);
- linux_env_idx = 0;
+ argp += next - line + 1;
+ linux_argc++;
+
+ if (*next)
+ next++;
+
+ line = next;
+ }
+
+ linux_env = (char **) (((ulong) argp + 15) & ~15);
+ linux_env[0] = 0;
+ linux_env_p = (char *) (linux_env + LINUX_MAX_ENVS);
+ linux_env_idx = 0;
}
-static void linux_env_set (char * env_name, char * env_val)
+static void linux_env_set (char *env_name, char *env_val)
{
- if (linux_env_idx < LINUX_MAX_ENVS - 1)
- {
- linux_env [linux_env_idx] = linux_env_p;
+ if (linux_env_idx < LINUX_MAX_ENVS - 1) {
+ linux_env[linux_env_idx] = linux_env_p;
- strcpy (linux_env_p, env_name);
- linux_env_p += strlen (env_name);
+ strcpy (linux_env_p, env_name);
+ linux_env_p += strlen (env_name);
- strcpy (linux_env_p, "=");
- linux_env_p += 1;
+ strcpy (linux_env_p, "=");
+ linux_env_p += 1;
- strcpy (linux_env_p, env_val);
- linux_env_p += strlen (env_val);
+ strcpy (linux_env_p, env_val);
+ linux_env_p += strlen (env_val);
- linux_env_p ++;
- linux_env [++ linux_env_idx] = 0;
- }
+ linux_env_p++;
+ linux_env[++linux_env_idx] = 0;
+ }
}
generated by cgit v1.1 at 2024-11-24 11:22:56 +0000