diff options
| author | Weijie Gao <weijie.gao@mediatek.com> | 2019-07-10 17:35:42 +0800 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2019-07-18 11:31:30 -0400 |
| commit | ea804eb340906c7e3434310de3fa647e747d4eeb (patch) | |
| tree | b1f41af5e86a2a53ca15233ef4157d87e7f3c536 /arch/arm/mach-mediatek/mt7629/lowlevel_init.S | |
| parent | f752e5783b7300671a13587e864468f6742576c3 (diff) | |
arm: mediatek: add missing arch timer configuration for MT7629
This patch sets CNTVOFF of ARM CP15 timer to zero to make sure the virtual
counter is fully usable for linux kernel.
Cc: Albert Aribaud <albert.u.boot@aribaud.net>
Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
Diffstat (limited to 'arch/arm/mach-mediatek/mt7629/lowlevel_init.S')
| -rw-r--r-- | arch/arm/mach-mediatek/mt7629/lowlevel_init.S | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/arm/mach-mediatek/mt7629/lowlevel_init.S b/arch/arm/mach-mediatek/mt7629/lowlevel_init.S index 3375796b79..0a0672cbea 100644 --- a/arch/arm/mach-mediatek/mt7629/lowlevel_init.S +++ b/arch/arm/mach-mediatek/mt7629/lowlevel_init.S @@ -4,6 +4,7 @@ */ #include <linux/linkage.h> +#include <asm/proc-armv/ptrace.h> #define WAIT_CODE_SRAM_BASE 0x0010ff00 @@ -27,6 +28,18 @@ ENTRY(lowlevel_init) movt r0, #0x131 mcr p15, 0, r0, c14, c0, 0 + cps #MON_MODE + mrc p15, 0, r1, c1, c1, 0 @ Get Secure Config + orr r0, r1, #1 + mcr p15, 0, r0, c1, c1, 0 @ Set Non Secure bit + isb + mov r0, #0 + mcrr p15, 4, r0, r0, c14 @ CNTVOFF = 0 + isb + mcr p15, 0, r1, c1, c1, 0 @ Set Secure bit + isb + cps #SVC_MODE + /* enable SMP bit */ mrc p15, 0, r0, c1, c0, 1 orr r0, r0, #0x40 |