Some boards want to report more than just memory size. For example, it might be useful to display the memory type (DDR2, DDR3) or manufacturer.
Add a weak function to support this requirement.
Any example of the DRAM: output is below, just for illustration:
U-Boot 2011.12-02470-gd64a0f8-dirty (Sep 14 2012 - 10:46:39) for SMDK5250
CPU: S5PC520 @ 1700MHz I2C: ready DRAM: 2 GiB Samsung DDR3 @ 800MHz MMC: S5P MSHC0: 0, S5P MSHC1: 1 Using default environment
Signed-off-by: Simon Glass sjg@chromium.org --- arch/arm/lib/board.c | 12 ++++++++++-- include/common.h | 9 +++++++++ 2 files changed, 19 insertions(+), 2 deletions(-)
diff --git a/arch/arm/lib/board.c b/arch/arm/lib/board.c index b879507..d420307 100644 --- a/arch/arm/lib/board.c +++ b/arch/arm/lib/board.c @@ -133,6 +133,15 @@ static int display_banner(void) return (0); }
+inline void __board_show_dram(ulong size) +{ + puts("DRAM: "); + print_size(size, "\n"); +} + +void board_show_dram(ulong size) + __attribute__((weak, alias("__board_show_dram"))); + /* * WARNING: this code looks "cleaner" than the PowerPC version, but * has the disadvantage that you either get nothing, or everything. @@ -157,8 +166,7 @@ static int display_dram_config(void) for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) size += gd->bd->bi_dram[i].size;
- puts("DRAM: "); - print_size(size, "\n"); + board_show_dram(size); #endif
return (0); diff --git a/include/common.h b/include/common.h index b23e90b..6270b44 100644 --- a/include/common.h +++ b/include/common.h @@ -311,6 +311,15 @@ int mac_read_from_eeprom(void); extern u8 _binary_dt_dtb_start[]; /* embedded device tree blob */ int set_cpu_clk_info(void);
+/** + * Show the DRAM size in a board-specific way + * + * This is used by boards to display DRAM information in their own way. + * + * @param size Size of DRAM (which should be displayed along with other info) + */ +void board_show_dram(ulong size); + /* common/flash.c */ void flash_perror (int);