samsung: misc: add function for setting $dfu_alt_info
This change introduces new common function:
- set_dfu_alt_info() - put dfu system and bootloader setting
into $dfu_alt_info.
functions declaration:
- char *get_dfu_alt_system(void)
- char *get_dfu_alt_boot(void)
- void set_dfu_alt_info(void)
and new config:
- CONFIG_SET_DFU_ALT_INFO
This function can be used for auto setting dfu configuration on boot.
Such feature is useful for multi board support by one u-boot binary.
Each board should define two functions:
- get_dfu_alt_system()
- get_dfu_alt_boot()
Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com>
Cc: Minkyu Kang <mk7.kang@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
diff --git a/board/samsung/common/misc.c b/board/samsung/common/misc.c
index a453a82..9e52452 100644
--- a/board/samsung/common/misc.c
+++ b/board/samsung/common/misc.c
@@ -11,6 +11,7 @@
#include <samsung/misc.h>
#include <errno.h>
#include <version.h>
+#include <malloc.h>
#include <linux/sizes.h>
#include <asm/arch/cpu.h>
#include <asm/arch/gpio.h>
@@ -21,6 +22,46 @@
DECLARE_GLOBAL_DATA_PTR;
+#ifdef CONFIG_SET_DFU_ALT_INFO
+void set_dfu_alt_info(void)
+{
+ size_t buf_size = CONFIG_SET_DFU_ALT_BUF_LEN;
+ ALLOC_CACHE_ALIGN_BUFFER(char, buf, buf_size);
+ char *alt_info = "Settings not found!";
+ char *status = "error!\n";
+ char *alt_setting;
+ char *alt_sep;
+ int offset = 0;
+
+ puts("DFU alt info setting: ");
+
+ alt_setting = get_dfu_alt_boot();
+ if (alt_setting) {
+ setenv("dfu_alt_boot", alt_setting);
+ offset = snprintf(buf, buf_size, "%s", alt_setting);
+ }
+
+ alt_setting = get_dfu_alt_system();
+ if (alt_setting) {
+ if (offset)
+ alt_sep = ";";
+ else
+ alt_sep = "";
+
+ offset += snprintf(buf + offset, buf_size - offset,
+ "%s%s", alt_sep, alt_setting);
+ }
+
+ if (offset) {
+ alt_info = buf;
+ status = "done\n";
+ }
+
+ setenv("dfu_alt_info", alt_info);
+ puts(status);
+}
+#endif
+
#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
void set_board_info(void)
{