stm32mp1: activate SET_DFU_ALT_INFO
Generate automatically dfu_alt_info for the supported device.
The simple command "dfu 0" allows to start the dfu stack on usb 0
for the supported devices:
- dfu mtd for nand0
- dfu mtd for nor0
- dfu mmc for SDCard
- dfu mmc for eMMC
- dfu ram for images in DDR
The DUF alternate use the "part", "partubi" and "mmcpart" options
to select the correct MTD or GPT partition or the eMMC hw boot partition.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
diff --git a/board/st/stm32mp1/stm32mp1.c b/board/st/stm32mp1/stm32mp1.c
index 126af30..a8f8cca 100644
--- a/board/st/stm32mp1/stm32mp1.c
+++ b/board/st/stm32mp1/stm32mp1.c
@@ -14,6 +14,7 @@
#include <generic-phy.h>
#include <i2c.h>
#include <led.h>
+#include <memalign.h>
#include <misc.h>
#include <mtd.h>
#include <mtd_node.h>
@@ -920,6 +921,56 @@
}
#endif
+#ifdef CONFIG_SET_DFU_ALT_INFO
+#define DFU_ALT_BUF_LEN SZ_1K
+
+static void board_get_alt_info(const char *dev, char *buff)
+{
+ char var_name[32] = "dfu_alt_info_";
+ int ret;
+
+ ALLOC_CACHE_ALIGN_BUFFER(char, tmp_alt, DFU_ALT_BUF_LEN);
+
+ /* name of env variable to read = dfu_alt_info_<dev> */
+ strcat(var_name, dev);
+ ret = env_get_f(var_name, tmp_alt, DFU_ALT_BUF_LEN);
+ if (ret) {
+ if (buff[0] != '\0')
+ strcat(buff, "&");
+ strncat(buff, tmp_alt, DFU_ALT_BUF_LEN);
+ }
+}
+
+void set_dfu_alt_info(char *interface, char *devstr)
+{
+ struct udevice *dev;
+
+ ALLOC_CACHE_ALIGN_BUFFER(char, buf, DFU_ALT_BUF_LEN);
+
+ if (env_get("dfu_alt_info"))
+ return;
+
+ memset(buf, 0, sizeof(buf));
+
+ board_get_alt_info("ram", buf);
+
+ if (!uclass_get_device(UCLASS_MMC, 0, &dev))
+ board_get_alt_info("mmc0", buf);
+
+ if (!uclass_get_device(UCLASS_MMC, 1, &dev))
+ board_get_alt_info("mmc1", buf);
+
+ if (!uclass_get_device(UCLASS_SPI_FLASH, 0, &dev))
+ board_get_alt_info("nor0", buf);
+
+ if (!uclass_get_device(UCLASS_MTD, 0, &dev))
+ board_get_alt_info("nand0", buf);
+
+ env_set("dfu_alt_info", buf);
+ puts("DFU alt info setting: done\n");
+}
+#endif
+
static void board_copro_image_process(ulong fw_image, size_t fw_size)
{
int ret, id = 0; /* Copro id fixed to 0 as only one coproc on mp1 */