pcm052: allow specifying onboard DDR size in configs
PCM052 SoMs may be equipped with various sizes of DDR.
Keep default of 256MB; new PCM052-based targets will
specify their actual DDR size.
Linux command line is auto-adjusted to DDR size.
Signed-off-by: Albert ARIBAUD (3ADEV) <albert.aribaud@3adev.fr>
diff --git a/board/phytec/pcm052/Kconfig b/board/phytec/pcm052/Kconfig
index d67a69a..88524a3 100644
--- a/board/phytec/pcm052/Kconfig
+++ b/board/phytec/pcm052/Kconfig
@@ -12,4 +12,8 @@
config SYS_CONFIG_NAME
default "pcm052"
+config PCM052_DDR_SIZE
+ int
+ default 256
+
endif
diff --git a/include/configs/pcm052.h b/include/configs/pcm052.h
index 564434c..32f958a 100644
--- a/include/configs/pcm052.h
+++ b/include/configs/pcm052.h
@@ -134,7 +134,8 @@
"tftptimeout=1000\0" \
"tftptimeoutcountmax=1000000\0" \
"mtdparts=" MTDPARTS_DEFAULT "\0" \
- "bootargs_base=setenv bootargs rw mem=256M " \
+ "bootargs_base=setenv bootargs rw " \
+ " mem=" __stringify(CONFIG_PCM052_DDR_SIZE) "M " \
"console=ttyLP1,115200n8\0" \
"bootargs_sd=setenv bootargs ${bootargs} " \
"root=/dev/mmcblk0p2 rootwait\0" \
@@ -218,7 +219,7 @@
/* Physical memory map */
#define CONFIG_NR_DRAM_BANKS 1
#define PHYS_SDRAM (0x80000000)
-#define PHYS_SDRAM_SIZE (256 * 1024 * 1024)
+#define PHYS_SDRAM_SIZE (CONFIG_PCM052_DDR_SIZE * 1024 * 1024)
#define CONFIG_SYS_SDRAM_BASE PHYS_SDRAM
#define CONFIG_SYS_INIT_RAM_ADDR IRAM_BASE_ADDR