diff options
| author | Jagan Teki <jagan@edgeble.ai> | 2022-12-14 23:21:06 +0530 |
|---|---|---|
| committer | Kever Yang <kever.yang@rock-chips.com> | 2023-01-16 18:01:11 +0800 |
| commit | c6154677c81ea9480a90d8176527d877a3e1b368 (patch) | |
| tree | 8f4c43da8d5d67eaa91139d77a2c91b246646973 /arch/arm | |
| parent | ffb191e458cfbd6584b62b10757f2e68072862cc (diff) | |
arm: rockchip: rv1126: Set dram area unsecure for SPL
Unsecure the dram area so that MMC, USB, and SFC controllers
can able to read data from dram.
Signed-off-by: Jason Zhu <jason.zhu@rock-chips.com>
Signed-off-by: Jagan Teki <jagan@edgeble.ai>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/mach-rockchip/rv1126/rv1126.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/arm/mach-rockchip/rv1126/rv1126.c b/arch/arm/mach-rockchip/rv1126/rv1126.c index 91554c98b65f..b9b898756f73 100644 --- a/arch/arm/mach-rockchip/rv1126/rv1126.c +++ b/arch/arm/mach-rockchip/rv1126/rv1126.c @@ -10,6 +10,8 @@ #include <asm/arch-rockchip/hardware.h> #include <asm/arch-rockchip/grf_rv1126.h> +#define FIREWALL_APB_BASE 0xffa60000 +#define FW_DDR_CON_REG 0x80 #define GRF_BASE 0xFE000000 const char * const boot_devices[BROM_LAST_BOOTSOURCE + 1] = { @@ -58,6 +60,16 @@ void board_debug_uart_init(void) #ifndef CONFIG_TPL_BUILD int arch_cpu_init(void) { + /** + * Set dram area unsecure in spl + * + * usb & mmc & sfc controllers can read data to dram + * since they are unsecure. + * (Note: only secure-world can access this register) + */ + if (IS_ENABLED(CONFIG_SPL_BUILD)) + writel(0, FIREWALL_APB_BASE + FW_DDR_CON_REG); + return 0; } #endif |