diff options
| author | Jonas Karlman <[email protected]> | 2026-01-08 13:32:29 +0000 |
|---|---|---|
| committer | Tom Rini <[email protected]> | 2026-03-10 10:07:02 -0600 |
| commit | c501d837426992e69f87cd7e6505be53c9216e05 (patch) | |
| tree | 04af7960bbc3210d53f07fbd5a0cb6b470531fa2 | |
| parent | 492e00e27c32c32e66461d11697b205c7be1c382 (diff) | |
rockchip: rk3576: Allow pmu sram access for non-secure masters
The firewall block access to pmu sram for non-secure masters by default
after reset (0xffffbfff).
Change the pmu lookup configuration to match the default lookup config
for ddr and system sram (0xffff3fff) to allow loading TF-A using DMA.
Mainline TF-A will re-configure the firewall to use an even less
restrictive lookup (0xbffe3ff0), so this change is not expected to have
any real security implication.
Signed-off-by: Jonas Karlman <[email protected]>
Tested-by: Alexey Charkov <[email protected]> # UFS
Reviewed-by: Kever Yang <[email protected]>
| -rw-r--r-- | arch/arm/mach-rockchip/rk3576/rk3576.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/arm/mach-rockchip/rk3576/rk3576.c b/arch/arm/mach-rockchip/rk3576/rk3576.c index a1e8a7572fa..c17ba418ced 100644 --- a/arch/arm/mach-rockchip/rk3576/rk3576.c +++ b/arch/arm/mach-rockchip/rk3576/rk3576.c @@ -26,6 +26,9 @@ #define SYS_SGRF_SOC_CON15 0x005C #define SYS_SGRF_SOC_CON20 0x0070 +#define FW_PMU1SGRF_BASE 0x26003000 +#define PMU1SGRF_SLV_LOOKUP0 0x80 + #define FW_SYS_SGRF_BASE 0x26005000 #define SGRF_DOMAIN_CON1 0x4 #define SGRF_DOMAIN_CON2 0x8 @@ -140,6 +143,9 @@ int arch_cpu_init(void) if (!IS_ENABLED(CONFIG_SPL_BUILD)) return 0; + /* Allow pmu sram access for non-secure masters */ + writel(0xffff3fff, FW_PMU1SGRF_BASE + PMU1SGRF_SLV_LOOKUP0); + /* Set the emmc to access ddr memory */ val = readl(FW_SYS_SGRF_BASE + SGRF_DOMAIN_CON2); writel(val | 0x7, FW_SYS_SGRF_BASE + SGRF_DOMAIN_CON2); |