[U-Boot] [PATCH 10/11] MIPS: bootm: add YAMON style Linux preparation/jump code for Qemu Malta
Daniel Schwierzeck
daniel.schwierzeck at gmail.com
Sun Jun 9 00:42:49 CEST 2013
Signed-off-by: Gabor Juhos <juhosg at openwrt.org>
Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck at gmail.com>
---
arch/mips/lib/bootm.c | 22 ++++++++++++++++++++--
1 file changed, 20 insertions(+), 2 deletions(-)
diff --git a/arch/mips/lib/bootm.c b/arch/mips/lib/bootm.c
index 68b57d7..1dc4e73 100644
--- a/arch/mips/lib/bootm.c
+++ b/arch/mips/lib/bootm.c
@@ -39,6 +39,12 @@ DECLARE_GLOBAL_DATA_PTR;
#define need_linux_env 1
#endif
+#if defined(CONFIG_QEMU_MALTA)
+#define board_is_qemu_malta 1
+#else
+#define board_is_qemu_malta 0
+#endif
+
static int linux_argc;
static char **linux_argv;
static char *linux_argp;
@@ -174,7 +180,12 @@ static void linux_env_set(const char *env_name, const char *env_val)
strcpy(linux_env_p, env_name);
linux_env_p += strlen(env_name);
- *linux_env_p++ = '=';
+ if (board_is_qemu_malta) {
+ linux_env_p++;
+ linux_env[++linux_env_idx] = linux_env_p;
+ } else {
+ *linux_env_p++ = '=';
+ }
strcpy(linux_env_p, env_val);
linux_env_p += strlen(env_val);
@@ -225,6 +236,9 @@ static void boot_prep_linux_legacy(bootm_headers_t *images)
cp = getenv("eth1addr");
if (cp)
linux_env_set("eth1addr", cp);
+
+ if (board_is_qemu_malta)
+ linux_env_set("modetty0", "38400n8r");
}
static void boot_prep_linux(bootm_headers_t *images)
@@ -237,15 +251,19 @@ static void boot_jump_linux(bootm_headers_t *images)
{
typedef void __noreturn (*kernel_entry_t)(int, ulong, ulong, ulong);
kernel_entry_t kernel = (kernel_entry_t) images->ep;
+ ulong linux_extra = 0;
debug("## Transferring control to Linux (at address %p) ...\n", kernel);
bootstage_mark(BOOTSTAGE_ID_RUN_OS);
+ if (board_is_qemu_malta)
+ linux_extra = gd->ram_size;
+
/* we assume that the kernel is in place */
printf("\nStarting kernel ...\n\n");
- kernel(linux_argc, (ulong)linux_argv, (ulong)linux_env, 0);
+ kernel(linux_argc, (ulong)linux_argv, (ulong)linux_env, linux_extra);
}
int do_bootm_linux(int flag, int argc, char * const argv[],
--
1.8.1.2
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