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@@ -43,6 +43,41 @@ static void hexdump(unsigned char *buf, int len)
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}
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}
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#endif
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#endif
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+#define MOUNT_ROOT_RDONLY 0x000
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+#define RAMDISK_FLAGS 0x004
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+#define ORIG_ROOT_DEV 0x008
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+#define LOADER_TYPE 0x00c
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+#define INITRD_START 0x010
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+#define INITRD_SIZE 0x014
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+#define COMMAND_LINE 0x100
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+
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+#define RD_PROMPT (1<<15)
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+#define RD_DOLOAD (1<<14)
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+#define CMD_ARG_RD_PROMPT "prompt_ramdisk="
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+#define CMD_ARG_RD_DOLOAD "load_ramdisk="
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+
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+#ifdef CONFIG_SH_SDRAM_OFFSET
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+#define GET_INITRD_START(initrd, linux) (initrd - linux + CONFIG_SH_SDRAM_OFFSET)
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+#else
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+#define GET_INITRD_START(initrd, linux) (initrd - linux)
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+#endif
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+
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+static void set_sh_linux_param(unsigned long param_addr, unsigned long data)
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+{
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+ *(unsigned long *)(param_addr) = data;
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+}
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+
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+static unsigned long sh_check_cmd_arg(char *cmdline, char *key, int base)
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+{
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+ unsigned long val = 0;
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+ char *p = strstr(cmdline, key);
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+ if (p) {
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+ p += strlen(key);
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+ val = simple_strtol(p, NULL, base);
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+ }
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+ return val;
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+}
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+
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int do_bootm_linux(int flag, int argc, char * const argv[], bootm_headers_t *images)
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int do_bootm_linux(int flag, int argc, char * const argv[], bootm_headers_t *images)
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{
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{
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/* Linux kernel load address */
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/* Linux kernel load address */
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@@ -51,7 +86,7 @@ int do_bootm_linux(int flag, int argc, char * const argv[], bootm_headers_t *ima
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unsigned char *param
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unsigned char *param
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= (unsigned char *)image_get_load(images->legacy_hdr_os);
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= (unsigned char *)image_get_load(images->legacy_hdr_os);
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/* Linux kernel command line */
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/* Linux kernel command line */
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- char *cmdline = (char *)param + 0x100;
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+ char *cmdline = (char *)param + COMMAND_LINE;
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/* PAGE_SIZE */
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/* PAGE_SIZE */
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unsigned long size = images->ep - (unsigned long)param;
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unsigned long size = images->ep - (unsigned long)param;
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char *bootargs = getenv("bootargs");
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char *bootargs = getenv("bootargs");
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@@ -61,8 +96,37 @@ int do_bootm_linux(int flag, int argc, char * const argv[], bootm_headers_t *ima
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/* Setup parameters */
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/* Setup parameters */
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memset(param, 0, size); /* Clear zero page */
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memset(param, 0, size); /* Clear zero page */
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+
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+ /* Set commandline */
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strcpy(cmdline, bootargs);
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strcpy(cmdline, bootargs);
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+ sh_check_cmd_arg(bootargs, CMD_ARG_RD_DOLOAD, 10);
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+ /* Initrd */
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+ if (images->rd_start || images->rd_end) {
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+ unsigned long ramdisk_flags = 0;
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+ int val = sh_check_cmd_arg(bootargs, CMD_ARG_RD_PROMPT, 10);
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+ if (val == 1)
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+ ramdisk_flags |= RD_PROMPT;
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+ else
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+ ramdisk_flags &= ~RD_PROMPT;
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+
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+ val = sh_check_cmd_arg(bootargs, CMD_ARG_RD_DOLOAD, 10);
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+ if (val == 1)
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+ ramdisk_flags |= RD_DOLOAD;
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+ else
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+ ramdisk_flags &= ~RD_DOLOAD;
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+
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+ set_sh_linux_param((unsigned long)param + MOUNT_ROOT_RDONLY, 0x0001);
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+ set_sh_linux_param((unsigned long)param + RAMDISK_FLAGS, ramdisk_flags);
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+ set_sh_linux_param((unsigned long)param + ORIG_ROOT_DEV, 0x0200);
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+ set_sh_linux_param((unsigned long)param + LOADER_TYPE, 0x0001);
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+ set_sh_linux_param((unsigned long)param + INITRD_START,
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+ GET_INITRD_START(images->rd_start, CONFIG_SYS_SDRAM_BASE));
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+ set_sh_linux_param((unsigned long)param + INITRD_SIZE,
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+ images->rd_end - images->rd_start);
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+ }
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+
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+ /* Boot kernel */
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kernel();
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kernel();
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/* does not return */
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/* does not return */
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