| Message ID | 20190715182856.21688-14-jagan@amarulasolutions.com |
|---|---|
| State | New |
| Headers | show |
| Series |
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| Related | show |
On 2019/7/16 上午2:28, Jagan Teki wrote: > 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> Thanks, - Kever > --- > .../include/asm/arch-rockchip/sdram_common.h | 5 ++++ > drivers/ram/rockchip/sdram_debug.c | 29 +++++++++++++++++++ > 2 files changed, 34 insertions(+) > > diff --git a/arch/arm/include/asm/arch-rockchip/sdram_common.h b/arch/arm/include/asm/arch-rockchip/sdram_common.h > index cfbb511843..b7549f5d8a 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 19e9225c12..9cf662675b 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"); > + } > +}
diff --git a/arch/arm/include/asm/arch-rockchip/sdram_common.h b/arch/arm/include/asm/arch-rockchip/sdram_common.h index cfbb511843..b7549f5d8a 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 19e9225c12..9cf662675b 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"); + } +}