[PATCH v2] board: gateworks: venice: determine dram size at runtime

[Tim Harvey]

The SPL does not update the memory node with the dram size from EEPROM
but instead we can use get_ram_size which does a simple memory test
to determine the available RAM. Update PHYS_SDRAM_SIZE to 4GiB as that
is the max used on the Venice boards.

Signed-off-by: Tim Harvey <tharvey at gateworks.com>
Reviewed-by: Fabio Estevam <festevam at denx.de>
---
v2:
 - bump PHYS_SDRAM_SIZE for imx8mn_venice to account for boards that
   have more than 1GiB of DRAM
 - added Fabio's rb tag
---
 board/gateworks/venice/venice.c | 13 ++-----------
 include/configs/imx8mm_venice.h |  2 +-
 include/configs/imx8mn_venice.h |  2 +-
 3 files changed, 4 insertions(+), 13 deletions(-)

diff --git a/board/gateworks/venice/venice.c b/board/gateworks/venice/venice.c
index 4e05802b6ff1..5334500ef6a7 100644
--- a/board/gateworks/venice/venice.c
+++ b/board/gateworks/venice/venice.c
@@ -21,19 +21,10 @@ DECLARE_GLOBAL_DATA_PTR;
 
 int board_phys_sdram_size(phys_size_t *size)
 {
-	const fdt64_t *val;
-	int offset;
-	int len;
-
-	/* get size from dt which SPL updated per EEPROM config */
-	offset = fdt_path_offset(gd->fdt_blob, "/memory");
-	if (offset < 0)
+	if (!size)
 		return -EINVAL;
 
-	val = fdt_getprop(gd->fdt_blob, offset, "reg", &len);
-	if (len < sizeof(*val) * 2)
-		return -EINVAL;
-	*size = get_unaligned_be64(&val[1]);
+	*size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE);
 
 	return 0;
 }
diff --git a/include/configs/imx8mm_venice.h b/include/configs/imx8mm_venice.h
index 1ec27f40f2b5..a3649702e955 100644
--- a/include/configs/imx8mm_venice.h
+++ b/include/configs/imx8mm_venice.h
@@ -83,7 +83,7 @@
 
 /* SDRAM configuration */
 #define PHYS_SDRAM                      0x40000000
-#define PHYS_SDRAM_SIZE			SZ_1G /* 1GB DDR */
+#define PHYS_SDRAM_SIZE			SZ_4G
 #define CONFIG_SYS_BOOTM_LEN		SZ_256M
 
 /* UART */
diff --git a/include/configs/imx8mn_venice.h b/include/configs/imx8mn_venice.h
index c01a590c8af6..c68cc96a7300 100644
--- a/include/configs/imx8mn_venice.h
+++ b/include/configs/imx8mn_venice.h
@@ -80,7 +80,7 @@
 
 /* SDRAM configuration */
 #define PHYS_SDRAM                      0x40000000
-#define PHYS_SDRAM_SIZE			SZ_1G
+#define PHYS_SDRAM_SIZE			SZ_4G
 #define CONFIG_SYS_BOOTM_LEN		SZ_256M
 
 /* UART */
-- 
2.17.1