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MIPS: bootm: refactor initialisation of kernel environment

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Move initialisation of Linux environment to separate functions.

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
This commit is contained in:
Daniel Schwierzeck 2013-05-09 17:10:06 +02:00
parent 59e8cbdb15
commit 15f8aa9093
1 changed files with 29 additions and 33 deletions
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62
arch/mips/lib/bootm.c
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@ -25,9 +25,6 @@ static char **linux_env;
static char *linux_env_p;
static int linux_env_idx;
static void linux_params_init(void);
static void linux_env_set(char *env_name, char *env_val);
static ulong arch_get_sp(void)
{
ulong ret;
@ -120,12 +117,36 @@ static void boot_cmdline_linux(bootm_headers_t *images)
linux_cmdline_dump();
}
static void linux_env_init(void)
{
linux_env = (char **)(((ulong) linux_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(const char *env_name, const char *env_val)
{
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);
*linux_env_p++ = '=';
strcpy(linux_env_p, env_val);
linux_env_p += strlen(env_val);
linux_env_p++;
linux_env[++linux_env_idx] = 0;
}
}
static void boot_prep_linux(bootm_headers_t *images)
{
char env_buf[12];
char *cp;
linux_params_init();
const char *cp;
#ifdef CONFIG_MEMSIZE_IN_BYTES
sprintf(env_buf, "%lu", (ulong)gd->ram_size);
@ -136,6 +157,8 @@ static void boot_prep_linux(bootm_headers_t *images)
(ulong)(gd->ram_size >> 20));
#endif /* CONFIG_MEMSIZE_IN_BYTES */
linux_env_init();
linux_env_set("memsize", env_buf);
sprintf(env_buf, "0x%08X", (uint) UNCACHED_SDRAM(images->rd_start));
@ -203,30 +226,3 @@ int do_bootm_linux(int flag, int argc, char * const argv[],
/* does not return */
return 1;
}
static void linux_params_init(void)
{
linux_env = (char **)(((ulong) linux_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)
{
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, "=");
linux_env_p += 1;
strcpy(linux_env_p, env_val);
linux_env_p += strlen(env_val);
linux_env_p++;
linux_env[++linux_env_idx] = 0;
}
}