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 d67a69a747a6a121b5e9beb7cdcf572b307260d8..88524a34944af511789a0fc63fa42730948f790e 100644 (file)
--- a/board/phytec/pcm052/Kconfig
+++ b/board/phytec/pcm052/Kconfig
@@ -12,4 +12,8 @@ config SYS_SOC
 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 564434ce4e7dbedff46377fb32072be210a27289..32f958a6b25ef970f0a77e6c5876451b8c6d4f40 100644 (file)
--- 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