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[2/4] ARM: uniphier: enable Peripherl clock to use UART in SPL

Message ID 1461825436-2915-3-git-send-email-yamada.masahiro@socionext.com
State Accepted
Commit 1dce5eb9de72eff89a42546186d511f24835816d
Headers show

Commit Message

Masahiro Yamada April 28, 2016, 6:37 a.m. UTC 
This is needed to use UART on SPL.

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

---

 arch/arm/mach-uniphier/early-clk/early-clk-ld20.c | 4 ++++
 1 file changed, 4 insertions(+)

-- 
1.9.1

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diff mbox

Patch

diff --git a/arch/arm/mach-uniphier/early-clk/early-clk-ld20.c b/arch/arm/mach-uniphier/early-clk/early-clk-ld20.c
index 37adb37..5201a55 100644
--- a/arch/arm/mach-uniphier/early-clk/early-clk-ld20.c
+++ b/arch/arm/mach-uniphier/early-clk/early-clk-ld20.c
@@ -21,6 +21,10 @@  int uniphier_ld20_early_clk_init(const struct uniphier_board_data *bd)
 	writel(tmp, SC_RSTCTRL7);
 
 	/* provide clocks */
+	tmp = readl(SC_CLKCTRL4);
+	tmp |= SC_CLKCTRL4_PERI;
+	writel(tmp, SC_CLKCTRL4);
+
 	tmp = readl(SC_CLKCTRL7);
 	tmp |= SC_CLKCTRL7_UMCSB | SC_CLKCTRL7_UMC32 | SC_CLKCTRL7_UMC31 |
 							SC_CLKCTRL7_UMC30;