[U-Boot] [RFC PATCH 13/14] stm32mp1: board: add spi nand support

[Patrick Delaunay]

This patch adds the support of the spi nand device in mtdparts command
and in dfu_alt_info.

Signed-off-by: Patrick Delaunay <patrick.delaunay at st.com>
---

 board/st/stm32mp1/stm32mp1.c | 33 ++++++++++++++++++++++++++++++---
 include/configs/stm32mp1.h   |  6 +++++-
 2 files changed, 35 insertions(+), 4 deletions(-)

diff --git a/board/st/stm32mp1/stm32mp1.c b/board/st/stm32mp1/stm32mp1.c
index 7656c66..68bd06c 100644
--- a/board/st/stm32mp1/stm32mp1.c
+++ b/board/st/stm32mp1/stm32mp1.c
@@ -14,6 +14,7 @@
 #include <led.h>
 #include <memalign.h>
 #include <misc.h>
+#include <mtd.h>
 #include <phy.h>
 #include <reset.h>
 #include <syscon.h>
@@ -720,8 +721,9 @@ static void board_get_mtdparts(const char *dev,
 
 void board_mtdparts_default(const char **mtdids, const char **mtdparts)
 {
+	struct mtd_info *mtd;
 	struct udevice *dev;
-	static char parts[2 * MTDPARTS_LEN + 1];
+	static char parts[3 * MTDPARTS_LEN + 1];
 	static char ids[MTDIDS_LEN + 1];
 	static bool mtd_initialized;
 
@@ -734,8 +736,24 @@ void board_mtdparts_default(const char **mtdids, const char **mtdparts)
 	memset(parts, 0, sizeof(parts));
 	memset(ids, 0, sizeof(ids));
 
-	if (!uclass_get_device(UCLASS_MTD, 0, &dev))
+	/* probe all MTD devices */
+	for (uclass_first_device(UCLASS_MTD, &dev);
+	     dev;
+	     uclass_next_device(&dev)) {
+		pr_debug("mtd device = %s\n", dev->name);
+	}
+
+	mtd = get_mtd_device_nm("nand0");
+	if (!IS_ERR_OR_NULL(mtd)) {
 		board_get_mtdparts("nand0", ids, parts);
+		put_mtd_device(mtd);
+	}
+
+	mtd = get_mtd_device_nm("spi-nand0");
+	if (!IS_ERR_OR_NULL(mtd)) {
+		board_get_mtdparts("spi-nand0", ids, parts);
+		put_mtd_device(mtd);
+	}
 
 	if (!uclass_get_device(UCLASS_SPI_FLASH, 0, &dev))
 		board_get_mtdparts("nor0", ids, parts);
@@ -770,6 +788,7 @@ static void board_get_alt_info(const char *dev, char *buff)
 void set_dfu_alt_info(char *interface, char *devstr)
 {
 	struct udevice *dev;
+	struct mtd_info *mtd;
 
 	ALLOC_CACHE_ALIGN_BUFFER(char, buf, DFU_ALT_BUF_LEN);
 
@@ -778,6 +797,9 @@ void set_dfu_alt_info(char *interface, char *devstr)
 
 	memset(buf, 0, sizeof(buf));
 
+	/* probe all MTD devices */
+	mtd_probe_devices();
+
 	board_get_alt_info("ram", buf);
 
 	if (!uclass_get_device(UCLASS_MMC, 0, &dev))
@@ -789,9 +811,14 @@ void set_dfu_alt_info(char *interface, char *devstr)
 	if (!uclass_get_device(UCLASS_SPI_FLASH, 0, &dev))
 		board_get_alt_info("nor0", buf);
 
-	if (!uclass_get_device(UCLASS_MTD, 0, &dev))
+	mtd = get_mtd_device_nm("nand0");
+	if (!IS_ERR_OR_NULL(mtd))
 		board_get_alt_info("nand0", buf);
 
+	mtd = get_mtd_device_nm("spi-nand0");
+	if (!IS_ERR_OR_NULL(mtd))
+		board_get_alt_info("spi-nand0", buf);
+
 	env_set("dfu_alt_info", buf);
 	puts("DFU alt info setting: done\n");
 }
diff --git a/include/configs/stm32mp1.h b/include/configs/stm32mp1.h
index 27b2bdb..6dcf0e2 100644
--- a/include/configs/stm32mp1.h
+++ b/include/configs/stm32mp1.h
@@ -129,7 +129,8 @@
 
 #define STM32MP_MTDPARTS \
 	"mtdparts_nor0=256k(fsbl1),256k(fsbl2),2m(ssbl),256k(u-boot-env),-(nor_user)\0" \
-	"mtdparts_nand0=2m(fsbl),2m(ssbl1),2m(ssbl2),-(UBI)\0"
+	"mtdparts_nand0=2m(fsbl),2m(ssbl1),2m(ssbl2),-(UBI)\0" \
+	"mtdparts_spi-nand0=2m(fsbl),2m(ssbl1),2m(ssbl2),-(UBI)\0"
 
 #define STM32MP_DFU_ALT_RAM \
 	"dfu_alt_info_ram=ram 0=" \
@@ -145,6 +146,9 @@
 	"dfu_alt_info_nand0=mtd nand0="\
 		"nand_fsbl part 1;nand_ssbl1 part 2;" \
 		"nand_ssbl2 part 3;nand_UBI partubi 4\0" \
+	"dfu_alt_info_spi-nand0=mtd spi-nand0="\
+		"spi-nand_fsbl part 1;spi-nand_ssbl1 part 2;" \
+		"spi-nand_ssbl2 part 3;spi-nand_UBI partubi 4\0" \
 	"dfu_alt_info_mmc0=mmc 0=" \
 		"sdcard_fsbl1 part 0 1;sdcard_fsbl2 part 0 2;" \
 		"sdcard_ssbl part 0 3;sdcard_bootfs part 0 4;" \
-- 
2.7.4