diff options
| author | Jagan Teki <jagan@amarulasolutions.com> | 2019-07-15 23:58:51 +0530 |
|---|---|---|
| committer | Kever Yang <kever.yang@rock-chips.com> | 2019-07-19 11:11:10 +0800 |
| commit | cb13534abe07afae88bdeadf24e42717a9657750 (patch) | |
| tree | e93ffe0749f305bbdcebd8e8b004abbb33999092 | |
| parent | 79674a62789c7fcda3dd285c618080bc0bf85189 (diff) | |
ram: rk3399: debug: Add sdram_print_stride
Add code to print the channel stride, this would help to
print the stride of associated channel.
Here is sample print on LPDDR4, 50MHz.
256B stride
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: YouMin Chen <cym@rock-chips.com>
Reviewed-by: Kever Yang <Kever.yang@rock-chips.com>
| -rw-r--r-- | arch/arm/include/asm/arch-rockchip/sdram_common.h | 5 | ||||
| -rw-r--r-- | drivers/ram/rockchip/sdram_debug.c | 29 |
2 files changed, 34 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-rockchip/sdram_common.h b/arch/arm/include/asm/arch-rockchip/sdram_common.h index cfbb5118439..b7549f5d8a2 100644 --- a/arch/arm/include/asm/arch-rockchip/sdram_common.h +++ b/arch/arm/include/asm/arch-rockchip/sdram_common.h @@ -102,10 +102,15 @@ inline void sdram_print_ddr_info(struct sdram_cap_info *cap_info, struct sdram_base_params *base) { } + +inline void sdram_print_stride(unsigned int stride) +{ +} #else void sdram_print_dram_type(unsigned char dramtype); void sdram_print_ddr_info(struct sdram_cap_info *cap_info, struct sdram_base_params *base); +void sdram_print_stride(unsigned int stride); #endif /* CONFIG_RAM_ROCKCHIP_DEBUG */ #endif diff --git a/drivers/ram/rockchip/sdram_debug.c b/drivers/ram/rockchip/sdram_debug.c index 19e9225c127..9cf662675b2 100644 --- a/drivers/ram/rockchip/sdram_debug.c +++ b/drivers/ram/rockchip/sdram_debug.c @@ -116,3 +116,32 @@ void sdram_print_ddr_info(struct sdram_cap_info *cap_info, printdec(cap >> 20); printascii("MB\n"); } + +void sdram_print_stride(unsigned int stride) +{ + switch (stride) { + case 0xc: + printf("128B stride\n"); + break; + case 5: + case 9: + case 0xd: + case 0x11: + case 0x19: + printf("256B stride\n"); + break; + case 0xa: + case 0xe: + case 0x12: + printf("512B stride\n"); + break; + case 0xf: + printf("4K stride\n"); + break; + case 0x1f: + printf("32MB + 256B stride\n"); + break; + default: + printf("no stride\n"); + } +} |