[PATCH 07/23] imx: imx8ulp: configure XRDC for DRAM access from S400

Ye Li
2023-01-31T08:47:46Z

Need to add DRAM access permission for S400, as S400 needs to access
it When SPL calls image authentication

Signed-off-by: Ye Li <ye.li@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
---
arch/arm/mach-imx/imx8ulp/rdc.c | 5 +++++
1 file changed, 5 insertions(+)

diff --git a/arch/arm/mach-imx/imx8ulp/rdc.c b/arch/arm/mach-imx/imx8ulp/rdc.c
index d664437..8551bf6 100644
--- a/arch/arm/mach-imx/imx8ulp/rdc.c
+++ b/arch/arm/mach-imx/imx8ulp/rdc.c
@@ -286,6 +286,11 @@ void xrdc_init_mrc(void)
xrdc_config_mrc_dx_perm(5, 0, 1, 1);
xrdc_config_mrc_w3_w4(5, 0, 0x0, 0x80000FFF);

+ /* Set MRC6 for DDR access from Sentinel */
+ xrdc_config_mrc_w0_w1(6, 0, CFG_SYS_SDRAM_BASE, PHYS_SDRAM_SIZE);
+ xrdc_config_mrc_dx_perm(6, 0, 4, 1);
+ xrdc_config_mrc_w3_w4(6, 0, 0x0, 0x80000FFF);
+
/* The MRC8 is for SRAM1 */
xrdc_config_mrc_w0_w1(8, 0, 0x21000000, 0x10000);
/* Allow for all domains: So domain 2/3 (HIFI DSP/LPAV) is ok to access */
--
2.7.4