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authorMasahiro Yamada <yamada.masahiro@socionext.com>2016-10-27 23:47:05 +0900
committerMasahiro Yamada <yamada.masahiro@socionext.com>2016-10-29 17:24:30 +0900
commit76466bd7be58c0059e5d44b31907cd1066b9697b (patch)
tree8e9044cacb1a8d9cd76852ce1a922f3b8b33320d /arch/arm/mach-uniphier/clk
parenta8b66ac87cc1d6ffd1b3693514e60edcf61fb678 (diff)
ARM: uniphier: enable clocks to MIO/STDMAC on LD11 if USB is enabled
At the moment, the clk driver is not clever enough to automatically enable parent clocks like Linux. Enable the STDMAC clock explicitly if USB is enabled. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Diffstat (limited to 'arch/arm/mach-uniphier/clk')
-rw-r--r--arch/arm/mach-uniphier/clk/clk-ld11.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/arm/mach-uniphier/clk/clk-ld11.c b/arch/arm/mach-uniphier/clk/clk-ld11.c
index 92a07338a8..ca8737d2ff 100644
--- a/arch/arm/mach-uniphier/clk/clk-ld11.c
+++ b/arch/arm/mach-uniphier/clk/clk-ld11.c
@@ -9,6 +9,7 @@
#include <linux/io.h>
#include "../init.h"
+#include "../sc64-regs.h"
#include "../sg-regs.h"
void uniphier_ld11_clk_init(void)
@@ -25,4 +26,14 @@ void uniphier_ld11_clk_init(void)
writel(3, SG_ETPHYPSHUT);
writel(7, SG_ETPHYCNT);
}
+
+#ifdef CONFIG_USB_EHCI
+ {
+ /* FIXME: the current clk driver can not handle parents */
+ u32 tmp;
+ tmp = readl(SC_CLKCTRL4);
+ tmp |= SC_CLKCTRL4_MIO | SC_CLKCTRL4_STDMAC;
+ writel(tmp, SC_CLKCTRL4);
+ }
+#endif
}