ARM: uniphier: add PLL init code for LD20 SoC

Initialize the DPLL (PLL for DRAM) in SPL, and others in U-Boot
proper.  Split the common code into pll-base-ld20.c for easier
re-use.

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

1 files changed, 8 insertions, 0 deletions

diff --git a/arch/arm/mach-uniphier/clk/pll.h b/arch/arm/mach-uniphier/clk/pll.h
index ef0f722..d7e9303 100644
--- a/arch/arm/mach-uniphier/clk/pll.h
+++ b/arch/arm/mach-uniphier/clk/pll.h
@@ -8,6 +8,14 @@
 #ifndef MACH_PLL_H
 #define MACH_PLL_H
 
+#define UNIPHIER_PLL_FREQ_DEFAULT	(0)
+
 void uniphier_ld4_dpll_ssc_en(void);
 
+int uniphier_ld20_sscpll_init(unsigned long reg_base, unsigned int freq,
+			      unsigned int ssc_rate, unsigned int divn);
+int uniphier_ld20_sscpll_ssc_en(unsigned long reg_base);
+int uniphier_ld20_vpll27_init(unsigned long reg_base);
+int uniphier_ld20_dspll_init(unsigned long reg_base);
+
 #endif /* MACH_PLL_H */