platform: Enable U-Mode access by update spmpcfg0 and spmpaddr0

Signed-off-by: Huaqi Fang <[email protected]>
Nuclei-Software · Oct 10, 2020 · 1d28050 · 1d28050
1 parent 4378320
commit 1d28050
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/platform/nuclei/ux600/platform.c b/platform/nuclei/ux600/platform.c
@@ -118,6 +118,7 @@ static int ux600_early_init(bool cold_boot)
 	regval = readl((void *)(UX600_GPIO_ADDR + UX600_GPIO_IOF_EN_OFS)) |
 		UX600_GPIO_IOF_UART0_MASK;
 	writel(regval, (void *)(UX600_GPIO_ADDR + UX600_GPIO_IOF_EN_OFS));
+
 	return 0;
 }
 
@@ -136,6 +137,10 @@ static int ux600_final_init(bool cold_boot)
 	fdt = sbi_scratch_thishart_arg1_ptr();
 	ux600_modify_dt(fdt);
 
+    // Enable U-Mode to access all regions by setting spmpcfg0 and spmpaddr0
+    csr_write(0x1a0, 0x1f);
+    csr_write(0x1b0, 0xffffffff);
+
 	return 0;
 }