This is needed to use UART on SPL.
Signed-off-by: Masahiro Yamada <yamada.masah...@socionext.com>
---
arch/arm/mach-uniphier/early-clk/early-clk-ld20.c | 4 ++++
1 file changed, 4 insertions(+)
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;
--
1.9.1
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