Hi Philipp,
On 2021/10/9 上午1:33, Philipp Tomsich wrote:
On Fri, 8 Oct 2021 at 04:01, Nico Cheng nico.cheng@rock-chips.com wrote:
We configured the drive strength and security of EMMC in arch_cpu_init().
Could you point me to a public version of the TRM (and ideally also of the datasheet), so I can review this series?
I believe there is no public TRM or datasheet for rk3568 is available for now.
For these setting, I believe they are ported from vendor tree with enough test, but clear enough
comments will be needed.
Thanks,
- Kever
Thanks, Philipp.
Signed-off-by: Nico Cheng nico.cheng@rock-chips.com
arch/arm/mach-rockchip/rk3568/rk3568.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+)
diff --git a/arch/arm/mach-rockchip/rk3568/rk3568.c b/arch/arm/mach-rockchip/rk3568/rk3568.c index 973b4f9dcb..3f9a435c3c 100644 --- a/arch/arm/mach-rockchip/rk3568/rk3568.c +++ b/arch/arm/mach-rockchip/rk3568/rk3568.c @@ -13,6 +13,14 @@
#define PMUGRF_BASE 0xfdc20000 #define GRF_BASE 0xfdc60000 +#define GRF_GPIO1B_DS_2 0x218 +#define GRF_GPIO1B_DS_3 0x21c +#define GRF_GPIO1C_DS_0 0x220 +#define GRF_GPIO1C_DS_1 0x224 +#define GRF_GPIO1C_DS_2 0x228 +#define GRF_GPIO1C_DS_3 0x22c +#define SGRF_BASE 0xFDD18000 +#define SGRF_SOC_CON4 0x10
/* PMU_GRF_GPIO0D_IOMUX_L */ enum { @@ -81,5 +89,16 @@ void board_debug_uart_init(void)
int arch_cpu_init(void) { +#ifdef CONFIG_SPL_BUILD
/* Set the emmc sdmmc0 to secure */writel(((0x3 << 11 | 0x1 << 4) << 16), SGRF_BASE + SGRF_SOC_CON4);/* set the emmc ds to level 2 */writel(0x3f3f0707, GRF_BASE + GRF_GPIO1B_DS_2);writel(0x3f3f0707, GRF_BASE + GRF_GPIO1B_DS_3);writel(0x3f3f0707, GRF_BASE + GRF_GPIO1C_DS_0);writel(0x3f3f0707, GRF_BASE + GRF_GPIO1C_DS_1);writel(0x3f3f0707, GRF_BASE + GRF_GPIO1C_DS_2);writel(0x3f3f0707, GRF_BASE + GRF_GPIO1C_DS_3);+#endif return 0; } -- 2.17.1