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-rw-r--r--arch/arm/mach-imx/imx8ulp/rdc.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/imx8ulp/rdc.c b/arch/arm/mach-imx/imx8ulp/rdc.c
index 86310ca0b8..8db96c1886 100644
--- a/arch/arm/mach-imx/imx8ulp/rdc.c
+++ b/arch/arm/mach-imx/imx8ulp/rdc.c
@@ -276,6 +276,21 @@ void xrdc_init_mda(void)
void xrdc_init_mrc(void)
{
+ /* Re-config MRC3 for SRAM0 in case protected by S400 */
+ xrdc_config_mrc_w0_w1(3, 0, 0x22010000, 0x10000);
+ xrdc_config_mrc_dx_perm(3, 0, 0, 1);
+ xrdc_config_mrc_dx_perm(3, 0, 1, 1);
+ xrdc_config_mrc_dx_perm(3, 0, 4, 1);
+ xrdc_config_mrc_dx_perm(3, 0, 5, 1);
+ xrdc_config_mrc_dx_perm(3, 0, 6, 1);
+ xrdc_config_mrc_dx_perm(3, 0, 7, 1);
+ xrdc_config_mrc_w3_w4(3, 0, 0x0, 0x80000FFF);
+
+ /* Clear other 3 regions of MRC3 to invalid */
+ xrdc_config_mrc_w3_w4(3, 1, 0x0, 0x0);
+ xrdc_config_mrc_w3_w4(3, 2, 0x0, 0x0);
+ xrdc_config_mrc_w3_w4(3, 3, 0x0, 0x0);
+
/* Set MRC4 and MRC5 for DDR access from A35 and AP NIC PER masters */
xrdc_config_mrc_w0_w1(4, 0, CFG_SYS_SDRAM_BASE, PHYS_SDRAM_SIZE);
xrdc_config_mrc_dx_perm(4, 0, 1, 1);