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pcm052: allow specifying onboard DDR size in configs

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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>
This commit is contained in:
Albert ARIBAUD \(3ADEV\) 2016-09-26 09:08:07 +02:00 committed by Stefano Babic
parent ed0c2c0a9e
commit a7e5f7f3e5
2 changed files with 7 additions and 2 deletions
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4
board/phytec/pcm052/Kconfig
View File

@ -12,4 +12,8 @@ config SYS_SOC
config SYS_CONFIG_NAME
default "pcm052"
config PCM052_DDR_SIZE
int
default 256
endif

5
include/configs/pcm052.h
View File

@ -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