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(+)
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;