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[07/11] ARM: uniphier: do not run harmful code for USB boot mode of LD11 ES3

Message ID 1477579630-9692-8-git-send-email-yamada.masahiro@socionext.com
State Accepted
Commit 9c5313dc095ccab69dc9a0e100cdbda62369d4fb
Headers show

Commit Message

Masahiro Yamada Oct. 27, 2016, 2:47 p.m. UTC 
The USB boot without the stand-by MPU is available on ES3 or later
of LD11 SoC, but the code in this if-conditional block must not be
run when booting from USB.  Check if the boot device is USB, and
skip the code in the case.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

---

 arch/arm/mach-uniphier/clk/clk-ld11.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

-- 
1.9.1

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diff mbox

Patch

diff --git a/arch/arm/mach-uniphier/clk/clk-ld11.c b/arch/arm/mach-uniphier/clk/clk-ld11.c
index ca8737d..58069cb 100644
--- a/arch/arm/mach-uniphier/clk/clk-ld11.c
+++ b/arch/arm/mach-uniphier/clk/clk-ld11.c
@@ -5,18 +5,20 @@ 
  */
 
 #include <common.h>
+#include <spl.h>
 #include <linux/bitops.h>
 #include <linux/io.h>
 
+#include "../boot-mode/boot-device.h"
 #include "../init.h"
 #include "../sc64-regs.h"
 #include "../sg-regs.h"
 
 void uniphier_ld11_clk_init(void)
 {
-	if (readl(SG_PINMON0) & BIT(27)) {
-		/* if booted without stand-by MPU */
-
+	/* if booted from a device other than USB, without stand-by MPU */
+	if ((readl(SG_PINMON0) & BIT(27)) &&
+	    spl_boot_device_raw() != BOOT_DEVICE_USB) {
 		writel(1, SG_ETPHYPSHUT);
 		writel(1, SG_ETPHYCNT);