ARM: uniphier: set up charge pump current for MPLL of LD11 SoC

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

3 files changed, 24 insertions, 0 deletions

diff --git a/arch/arm/mach-uniphier/clk/pll-base-ld20.c b/arch/arm/mach-uniphier/clk/pll-base-ld20.c
index c66f083..697eb7a 100644
--- a/arch/arm/mach-uniphier/clk/pll-base-ld20.c
+++ b/arch/arm/mach-uniphier/clk/pll-base-ld20.c
@@ -18,6 +18,8 @@
 #define SC_PLLCTRL_SSC_EN		BIT(31)
 #define SC_PLLCTRL2_NRSTDS		BIT(28)
 #define SC_PLLCTRL2_SSC_JK_MASK		GENMASK(26, 0)
+#define SC_PLLCTRL3_REGI_SHIFT		16
+#define SC_PLLCTRL3_REGI_MASK		GENMASK(19, 16)
 
 /* PLL type: VPLL27 */
 #define SC_VPLL27CTRL_WP		BIT(0)
@@ -77,6 +79,25 @@ int uniphier_ld20_sscpll_ssc_en(unsigned long reg_base)
 	return 0;
 }
 
+int uniphier_ld20_sscpll_set_regi(unsigned long reg_base, unsigned regi)
+{
+	void __iomem *base;
+	u32 tmp;
+
+	base = ioremap(reg_base, SZ_16);
+	if (!base)
+		return -ENOMEM;
+
+	tmp = readl(base + 8);	/* SSCPLLCTRL */
+	tmp &= ~SC_PLLCTRL3_REGI_MASK;
+	tmp |= regi << SC_PLLCTRL3_REGI_SHIFT;
+	writel(tmp, base + 8);
+
+	iounmap(base);
+
+	return 0;
+}
+
 int uniphier_ld20_vpll27_init(unsigned long reg_base)
 {
 	void __iomem *base;
diff --git a/arch/arm/mach-uniphier/clk/pll-ld11.c b/arch/arm/mach-uniphier/clk/pll-ld11.c
index 7746deb..02befa2 100644
--- a/arch/arm/mach-uniphier/clk/pll-ld11.c
+++ b/arch/arm/mach-uniphier/clk/pll-ld11.c
@@ -18,6 +18,8 @@ void uniphier_ld11_pll_init(void)
 	uniphier_ld20_sscpll_init(SC_MPLLCTRL, 1600, 1, 2);	/* 1500MHz -> 1600MHz */
 	uniphier_ld20_sscpll_init(SC_VSPLLCTRL, UNIPHIER_PLL_FREQ_DEFAULT, 0, 2);
 
+	uniphier_ld20_sscpll_set_regi(SC_MPLLCTRL, 5);
+
 	mdelay(1);
 
 	uniphier_ld20_sscpll_ssc_en(SC_CPLLCTRL);
diff --git a/arch/arm/mach-uniphier/clk/pll.h b/arch/arm/mach-uniphier/clk/pll.h
index d7e9303..5eefc4e 100644
--- a/arch/arm/mach-uniphier/clk/pll.h
+++ b/arch/arm/mach-uniphier/clk/pll.h
@@ -15,6 +15,7 @@ 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_sscpll_set_regi(unsigned long reg_base, unsigned regi);
 int uniphier_ld20_vpll27_init(unsigned long reg_base);
 int uniphier_ld20_dspll_init(unsigned long reg_base);