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arm64: zynqmp: Define routines for mmio write and read
[oweals/u-boot.git]
/
arch
/
arm
/
cpu
/
armv8
/
start.S
diff --git
a/arch/arm/cpu/armv8/start.S
b/arch/arm/cpu/armv8/start.S
index 354468b9053d5e03d7ca8d513ce33623abd47c32..5c500be51d1f5fb616e04539e5fd2cb9e7287e3b 100644
(file)
--- a/
arch/arm/cpu/armv8/start.S
+++ b/
arch/arm/cpu/armv8/start.S
@@
-91,9
+91,12
@@
save_boot_params_ret:
* this bit should be set for A53/A57/A72.
*/
#ifdef CONFIG_ARMV8_SET_SMPEN
+ switch_el x1, 3f, 1f, 1f
+3:
mrs x0, S3_1_c15_c2_1 /* cpuectlr_el1 */
orr x0, x0, #0x40
msr S3_1_c15_c2_1, x0
+1:
#endif
/* Apply ARM core specific erratas */