ARM: uniphier: move PLL init code to U-Boot proper where possible
The PLL for the DRAM interface must be initialized in SPL, but the
others can be delayed until U-Boot proper. Move them from SPL to
U-Boot proper to save the precious SPL memory footprint.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/arch/arm/mach-uniphier/pll/Makefile b/arch/arm/mach-uniphier/pll/Makefile
index 63f169c..db22ba4 100644
--- a/arch/arm/mach-uniphier/pll/Makefile
+++ b/arch/arm/mach-uniphier/pll/Makefile
@@ -2,7 +2,7 @@
# SPDX-License-Identifier: GPL-2.0+
#
-obj-$(CONFIG_ARCH_UNIPHIER_SLD3) += pll-init-sld3.o pll-spectrum-sld3.o
-obj-$(CONFIG_ARCH_UNIPHIER_LD4) += pll-init-ld4.o pll-spectrum-ld4.o
-obj-$(CONFIG_ARCH_UNIPHIER_PRO4) += pll-init-pro4.o pll-spectrum-ld4.o
-obj-$(CONFIG_ARCH_UNIPHIER_SLD8) += pll-init-sld8.o pll-spectrum-ld4.o
+obj-$(CONFIG_ARCH_UNIPHIER_SLD3) += pll-init-sld3.o
+obj-$(CONFIG_ARCH_UNIPHIER_LD4) += pll-init-ld4.o
+obj-$(CONFIG_ARCH_UNIPHIER_PRO4) += pll-init-pro4.o
+obj-$(CONFIG_ARCH_UNIPHIER_SLD8) += pll-init-sld8.o
diff --git a/arch/arm/mach-uniphier/pll/pll-init-ld4.c b/arch/arm/mach-uniphier/pll/pll-init-ld4.c
index 57c1d9f..a40b30d 100644
--- a/arch/arm/mach-uniphier/pll/pll-init-ld4.c
+++ b/arch/arm/mach-uniphier/pll/pll-init-ld4.c
@@ -1,5 +1,6 @@
/*
- * Copyright (C) 2011-2015 Masahiro Yamada <yamada.masahiro@socionext.com>
+ * Copyright (C) 2013-2014 Panasonic Corporation
+ * Copyright (C) 2015-2016 Socionext Inc.
*
* SPDX-License-Identifier: GPL-2.0+
*/
@@ -10,12 +11,12 @@
#include "../init.h"
#include "../sc-regs.h"
-#include "../sg-regs.h"
#undef DPLL_SSC_RATE_1PER
-static int dpll_init(unsigned int dram_freq)
+int uniphier_ld4_dpll_init(const struct uniphier_board_data *bd)
{
+ unsigned int dram_freq = bd->dram_freq;
u32 tmp;
/*
@@ -48,157 +49,8 @@
tmp |= SC_DPLLCTRL2_NRSTDS;
writel(tmp, SC_DPLLCTRL2);
- return 0;
-}
-
-static void upll_init(void)
-{
- u32 tmp, clk_mode_upll, clk_mode_axosel;
-
- tmp = readl(SG_PINMON0);
- clk_mode_upll = tmp & SG_PINMON0_CLK_MODE_UPLLSRC_MASK;
- clk_mode_axosel = tmp & SG_PINMON0_CLK_MODE_AXOSEL_MASK;
-
- /* set 0 to SNRT(UPLLCTRL.bit28) and K_LD(UPLLCTRL.bit[27]) */
- tmp = readl(SC_UPLLCTRL);
- tmp &= ~0x18000000;
- writel(tmp, SC_UPLLCTRL);
-
- if (clk_mode_upll == SG_PINMON0_CLK_MODE_UPLLSRC_DEFAULT) {
- if (clk_mode_axosel == SG_PINMON0_CLK_MODE_AXOSEL_25000KHZ_U ||
- clk_mode_axosel == SG_PINMON0_CLK_MODE_AXOSEL_25000KHZ_A) {
- /* AXO: 25MHz */
- tmp &= ~0x07ffffff;
- tmp |= 0x0228f5c0;
- } else {
- /* AXO: default 24.576MHz */
- tmp &= ~0x07ffffff;
- tmp |= 0x02328000;
- }
- }
-
- writel(tmp, SC_UPLLCTRL);
-
- /* set 1 to K_LD(UPLLCTRL.bit[27]) */
- tmp |= 0x08000000;
- writel(tmp, SC_UPLLCTRL);
-
- /* wait 10 usec */
- udelay(10);
-
- /* set 1 to SNRT(UPLLCTRL.bit[28]) */
- tmp |= 0x10000000;
- writel(tmp, SC_UPLLCTRL);
-}
-
-static void vpll_init(void)
-{
- u32 tmp, clk_mode_axosel;
-
- tmp = readl(SG_PINMON0);
- clk_mode_axosel = tmp & SG_PINMON0_CLK_MODE_AXOSEL_MASK;
-
- /* set 1 to VPLA27WP and VPLA27WP */
- tmp = readl(SC_VPLL27ACTRL);
- tmp |= 0x00000001;
- writel(tmp, SC_VPLL27ACTRL);
- tmp = readl(SC_VPLL27BCTRL);
- tmp |= 0x00000001;
- writel(tmp, SC_VPLL27BCTRL);
-
- /* Set 0 to VPLA_K_LD and VPLB_K_LD */
- tmp = readl(SC_VPLL27ACTRL3);
- tmp &= ~0x10000000;
- writel(tmp, SC_VPLL27ACTRL3);
- tmp = readl(SC_VPLL27BCTRL3);
- tmp &= ~0x10000000;
- writel(tmp, SC_VPLL27BCTRL3);
-
- /* Set 0 to VPLA_SNRST and VPLB_SNRST */
- tmp = readl(SC_VPLL27ACTRL2);
- tmp &= ~0x10000000;
- writel(tmp, SC_VPLL27ACTRL2);
- tmp = readl(SC_VPLL27BCTRL2);
- tmp &= ~0x10000000;
- writel(tmp, SC_VPLL27BCTRL2);
-
- /* Set 0x20 to VPLA_SNRST and VPLB_SNRST */
- tmp = readl(SC_VPLL27ACTRL2);
- tmp &= ~0x0000007f;
- tmp |= 0x00000020;
- writel(tmp, SC_VPLL27ACTRL2);
- tmp = readl(SC_VPLL27BCTRL2);
- tmp &= ~0x0000007f;
- tmp |= 0x00000020;
- writel(tmp, SC_VPLL27BCTRL2);
-
- if (clk_mode_axosel == SG_PINMON0_CLK_MODE_AXOSEL_25000KHZ_U ||
- clk_mode_axosel == SG_PINMON0_CLK_MODE_AXOSEL_25000KHZ_A) {
- /* AXO: 25MHz */
- tmp = readl(SC_VPLL27ACTRL3);
- tmp &= ~0x000fffff;
- tmp |= 0x00066664;
- writel(tmp, SC_VPLL27ACTRL3);
- tmp = readl(SC_VPLL27BCTRL3);
- tmp &= ~0x000fffff;
- tmp |= 0x00066664;
- writel(tmp, SC_VPLL27BCTRL3);
- } else {
- /* AXO: default 24.576MHz */
- tmp = readl(SC_VPLL27ACTRL3);
- tmp &= ~0x000fffff;
- tmp |= 0x000f5800;
- writel(tmp, SC_VPLL27ACTRL3);
- tmp = readl(SC_VPLL27BCTRL3);
- tmp &= ~0x000fffff;
- tmp |= 0x000f5800;
- writel(tmp, SC_VPLL27BCTRL3);
- }
-
- /* Set 1 to VPLA_K_LD and VPLB_K_LD */
- tmp = readl(SC_VPLL27ACTRL3);
- tmp |= 0x10000000;
- writel(tmp, SC_VPLL27ACTRL3);
- tmp = readl(SC_VPLL27BCTRL3);
- tmp |= 0x10000000;
- writel(tmp, SC_VPLL27BCTRL3);
-
- /* wait 10 usec */
- udelay(10);
-
- /* Set 0 to VPLA_SNRST and VPLB_SNRST */
- tmp = readl(SC_VPLL27ACTRL2);
- tmp |= 0x10000000;
- writel(tmp, SC_VPLL27ACTRL2);
- tmp = readl(SC_VPLL27BCTRL2);
- tmp |= 0x10000000;
- writel(tmp, SC_VPLL27BCTRL2);
-
- /* set 0 to VPLA27WP and VPLA27WP */
- tmp = readl(SC_VPLL27ACTRL);
- tmp &= ~0x00000001;
- writel(tmp, SC_VPLL27ACTRL);
- tmp = readl(SC_VPLL27BCTRL);
- tmp |= ~0x00000001;
- writel(tmp, SC_VPLL27BCTRL);
-}
-
-int uniphier_ld4_pll_init(const struct uniphier_board_data *bd)
-{
- int ret;
-
- ret = dpll_init(bd->dram_freq);
- if (ret)
- return ret;
- upll_init();
- vpll_init();
-
- /*
- * Wait 500 usec until dpll get stable
- * We wait 10 usec in upll_init() and vpll_init()
- * so 20 usec can be saved here.
- */
- udelay(480);
+ /* Wait 500 usec until dpll gets stable */
+ udelay(500);
return 0;
}
diff --git a/arch/arm/mach-uniphier/pll/pll-init-pro4.c b/arch/arm/mach-uniphier/pll/pll-init-pro4.c
index a7e4e0e..3ac48d6 100644
--- a/arch/arm/mach-uniphier/pll/pll-init-pro4.c
+++ b/arch/arm/mach-uniphier/pll/pll-init-pro4.c
@@ -1,5 +1,6 @@
/*
- * Copyright (C) 2011-2015 Masahiro Yamada <yamada.masahiro@socionext.com>
+ * Copyright (C) 2013-2014 Panasonic Corporation
+ * Copyright (C) 2015-2016 Socionext Inc.
*
* SPDX-License-Identifier: GPL-2.0+
*/
@@ -10,12 +11,12 @@
#include "../init.h"
#include "../sc-regs.h"
-#include "../sg-regs.h"
#undef DPLL_SSC_RATE_1PER
-static int dpll_init(unsigned int dram_freq)
+int uniphier_pro4_dpll_init(const struct uniphier_board_data *bd)
{
+ unsigned int dram_freq = bd->dram_freq;
u32 tmp;
/*
@@ -52,113 +53,8 @@
tmp |= SC_DPLLCTRL2_NRSTDS;
writel(tmp, SC_DPLLCTRL2);
- return 0;
-}
-
-static void vpll_init(void)
-{
- u32 tmp, clk_mode_axosel;
-
- /* Set VPLL27A & VPLL27B */
- tmp = readl(SG_PINMON0);
- clk_mode_axosel = tmp & SG_PINMON0_CLK_MODE_AXOSEL_MASK;
-
- /* 25MHz or 6.25MHz is default for Pro4R, no need to set VPLLA/B */
- if (clk_mode_axosel == SG_PINMON0_CLK_MODE_AXOSEL_25000KHZ ||
- clk_mode_axosel == SG_PINMON0_CLK_MODE_AXOSEL_6250KHZ)
- return;
-
- /* Disable write protect of VPLL27ACTRL[2-7]*, VPLL27BCTRL[2-8] */
- tmp = readl(SC_VPLL27ACTRL);
- tmp |= 0x00000001;
- writel(tmp, SC_VPLL27ACTRL);
- tmp = readl(SC_VPLL27BCTRL);
- tmp |= 0x00000001;
- writel(tmp, SC_VPLL27BCTRL);
-
- /* Unset VPLA_K_LD and VPLB_K_LD bit */
- tmp = readl(SC_VPLL27ACTRL3);
- tmp &= ~0x10000000;
- writel(tmp, SC_VPLL27ACTRL3);
- tmp = readl(SC_VPLL27BCTRL3);
- tmp &= ~0x10000000;
- writel(tmp, SC_VPLL27BCTRL3);
-
- /* Set VPLA_M and VPLB_M to 0x20 */
- tmp = readl(SC_VPLL27ACTRL2);
- tmp &= ~0x0000007f;
- tmp |= 0x00000020;
- writel(tmp, SC_VPLL27ACTRL2);
- tmp = readl(SC_VPLL27BCTRL2);
- tmp &= ~0x0000007f;
- tmp |= 0x00000020;
- writel(tmp, SC_VPLL27BCTRL2);
-
- if (clk_mode_axosel == SG_PINMON0_CLK_MODE_AXOSEL_25000KHZ ||
- clk_mode_axosel == SG_PINMON0_CLK_MODE_AXOSEL_6250KHZ) {
- /* Set VPLA_K and VPLB_K for AXO: 25MHz */
- tmp = readl(SC_VPLL27ACTRL3);
- tmp &= ~0x000fffff;
- tmp |= 0x00066666;
- writel(tmp, SC_VPLL27ACTRL3);
- tmp = readl(SC_VPLL27BCTRL3);
- tmp &= ~0x000fffff;
- tmp |= 0x00066666;
- writel(tmp, SC_VPLL27BCTRL3);
- } else {
- /* Set VPLA_K and VPLB_K for AXO: 24.576 MHz */
- tmp = readl(SC_VPLL27ACTRL3);
- tmp &= ~0x000fffff;
- tmp |= 0x000f5800;
- writel(tmp, SC_VPLL27ACTRL3);
- tmp = readl(SC_VPLL27BCTRL3);
- tmp &= ~0x000fffff;
- tmp |= 0x000f5800;
- writel(tmp, SC_VPLL27BCTRL3);
- }
-
- /* wait 1 usec */
- udelay(1);
-
- /* Set VPLA_K_LD and VPLB_K_LD to load K parameters */
- tmp = readl(SC_VPLL27ACTRL3);
- tmp |= 0x10000000;
- writel(tmp, SC_VPLL27ACTRL3);
- tmp = readl(SC_VPLL27BCTRL3);
- tmp |= 0x10000000;
- writel(tmp, SC_VPLL27BCTRL3);
-
- /* Unset VPLA_SNRST and VPLB_SNRST bit */
- tmp = readl(SC_VPLL27ACTRL2);
- tmp |= 0x10000000;
- writel(tmp, SC_VPLL27ACTRL2);
- tmp = readl(SC_VPLL27BCTRL2);
- tmp |= 0x10000000;
- writel(tmp, SC_VPLL27BCTRL2);
-
- /* Enable write protect of VPLL27ACTRL[2-7]*, VPLL27BCTRL[2-8] */
- tmp = readl(SC_VPLL27ACTRL);
- tmp &= ~0x00000001;
- writel(tmp, SC_VPLL27ACTRL);
- tmp = readl(SC_VPLL27BCTRL);
- tmp &= ~0x00000001;
- writel(tmp, SC_VPLL27BCTRL);
-}
-
-int uniphier_pro4_pll_init(const struct uniphier_board_data *bd)
-{
- int ret;
-
- ret = dpll_init(bd->dram_freq);
- if (ret)
- return ret;
- vpll_init();
-
- /*
- * Wait 500 usec until dpll get stable
- * We wait 1 usec in vpll_init() so 1 usec can be saved here.
- */
- udelay(499);
+ /* Wait until dpll gets stable */
+ udelay(500);
return 0;
}
diff --git a/arch/arm/mach-uniphier/pll/pll-init-sld3.c b/arch/arm/mach-uniphier/pll/pll-init-sld3.c
index 5b4f2e3..0eb310c 100644
--- a/arch/arm/mach-uniphier/pll/pll-init-sld3.c
+++ b/arch/arm/mach-uniphier/pll/pll-init-sld3.c
@@ -6,7 +6,7 @@
#include "../init.h"
-int uniphier_sld3_pll_init(const struct uniphier_board_data *bd)
+int uniphier_sld3_dpll_init(const struct uniphier_board_data *bd)
{
/* add pll init code here */
return 0;
diff --git a/arch/arm/mach-uniphier/pll/pll-init-sld8.c b/arch/arm/mach-uniphier/pll/pll-init-sld8.c
index 8b6a67c..7faa5e8 100644
--- a/arch/arm/mach-uniphier/pll/pll-init-sld8.c
+++ b/arch/arm/mach-uniphier/pll/pll-init-sld8.c
@@ -1,5 +1,6 @@
/*
- * Copyright (C) 2011-2015 Masahiro Yamada <yamada.masahiro@socionext.com>
+ * Copyright (C) 2013-2014 Panasonic Corporation
+ * Copyright (C) 2015-2016 Socionext Inc.
*
* SPDX-License-Identifier: GPL-2.0+
*/
@@ -9,9 +10,8 @@
#include "../init.h"
#include "../sc-regs.h"
-#include "../sg-regs.h"
-static void dpll_init(void)
+int uniphier_sld8_dpll_init(const struct uniphier_board_data *bd)
{
u32 tmp;
/*
@@ -54,152 +54,9 @@
tmp &= ~0xefffffff;
tmp |= 0x0cfeb851;
writel(tmp, SC_DPLLCTRL2);
-}
-static void upll_init(void)
-{
- u32 tmp, clk_mode_upll, clk_mode_axosel;
-
- tmp = readl(SG_PINMON0);
- clk_mode_upll = tmp & SG_PINMON0_CLK_MODE_UPLLSRC_MASK;
- clk_mode_axosel = tmp & SG_PINMON0_CLK_MODE_AXOSEL_MASK;
-
- /* set 0 to SNRT(UPLLCTRL.bit28) and K_LD(UPLLCTRL.bit[27]) */
- tmp = readl(SC_UPLLCTRL);
- tmp &= ~0x18000000;
- writel(tmp, SC_UPLLCTRL);
-
- if (clk_mode_upll == SG_PINMON0_CLK_MODE_UPLLSRC_DEFAULT) {
- if (clk_mode_axosel == SG_PINMON0_CLK_MODE_AXOSEL_25000KHZ_U ||
- clk_mode_axosel == SG_PINMON0_CLK_MODE_AXOSEL_25000KHZ_A) {
- /* AXO: 25MHz */
- tmp &= ~0x07ffffff;
- tmp |= 0x0228f5c0;
- } else {
- /* AXO: default 24.576MHz */
- tmp &= ~0x07ffffff;
- tmp |= 0x02328000;
- }
- }
-
- writel(tmp, SC_UPLLCTRL);
-
- /* set 1 to K_LD(UPLLCTRL.bit[27]) */
- tmp |= 0x08000000;
- writel(tmp, SC_UPLLCTRL);
-
- /* wait 10 usec */
- udelay(10);
-
- /* set 1 to SNRT(UPLLCTRL.bit[28]) */
- tmp |= 0x10000000;
- writel(tmp, SC_UPLLCTRL);
-}
-
-static void vpll_init(void)
-{
- u32 tmp, clk_mode_axosel;
-
- tmp = readl(SG_PINMON0);
- clk_mode_axosel = tmp & SG_PINMON0_CLK_MODE_AXOSEL_MASK;
-
- /* set 1 to VPLA27WP and VPLA27WP */
- tmp = readl(SC_VPLL27ACTRL);
- tmp |= 0x00000001;
- writel(tmp, SC_VPLL27ACTRL);
- tmp = readl(SC_VPLL27BCTRL);
- tmp |= 0x00000001;
- writel(tmp, SC_VPLL27BCTRL);
-
- /* Set 0 to VPLA_K_LD and VPLB_K_LD */
- tmp = readl(SC_VPLL27ACTRL3);
- tmp &= ~0x10000000;
- writel(tmp, SC_VPLL27ACTRL3);
- tmp = readl(SC_VPLL27BCTRL3);
- tmp &= ~0x10000000;
- writel(tmp, SC_VPLL27BCTRL3);
-
- /* Set 0 to VPLA_SNRST and VPLB_SNRST */
- tmp = readl(SC_VPLL27ACTRL2);
- tmp &= ~0x10000000;
- writel(tmp, SC_VPLL27ACTRL2);
- tmp = readl(SC_VPLL27BCTRL2);
- tmp &= ~0x10000000;
- writel(tmp, SC_VPLL27BCTRL2);
-
- /* Set 0x20 to VPLA_SNRST and VPLB_SNRST */
- tmp = readl(SC_VPLL27ACTRL2);
- tmp &= ~0x0000007f;
- tmp |= 0x00000020;
- writel(tmp, SC_VPLL27ACTRL2);
- tmp = readl(SC_VPLL27BCTRL2);
- tmp &= ~0x0000007f;
- tmp |= 0x00000020;
- writel(tmp, SC_VPLL27BCTRL2);
-
- if (clk_mode_axosel == SG_PINMON0_CLK_MODE_AXOSEL_25000KHZ_U ||
- clk_mode_axosel == SG_PINMON0_CLK_MODE_AXOSEL_25000KHZ_A) {
- /* AXO: 25MHz */
- tmp = readl(SC_VPLL27ACTRL3);
- tmp &= ~0x000fffff;
- tmp |= 0x00066664;
- writel(tmp, SC_VPLL27ACTRL3);
- tmp = readl(SC_VPLL27BCTRL3);
- tmp &= ~0x000fffff;
- tmp |= 0x00066664;
- writel(tmp, SC_VPLL27BCTRL3);
- } else {
- /* AXO: default 24.576MHz */
- tmp = readl(SC_VPLL27ACTRL3);
- tmp &= ~0x000fffff;
- tmp |= 0x000f5800;
- writel(tmp, SC_VPLL27ACTRL3);
- tmp = readl(SC_VPLL27BCTRL3);
- tmp &= ~0x000fffff;
- tmp |= 0x000f5800;
- writel(tmp, SC_VPLL27BCTRL3);
- }
-
- /* Set 1 to VPLA_K_LD and VPLB_K_LD */
- tmp = readl(SC_VPLL27ACTRL3);
- tmp |= 0x10000000;
- writel(tmp, SC_VPLL27ACTRL3);
- tmp = readl(SC_VPLL27BCTRL3);
- tmp |= 0x10000000;
- writel(tmp, SC_VPLL27BCTRL3);
-
- /* wait 10 usec */
- udelay(10);
-
- /* Set 0 to VPLA_SNRST and VPLB_SNRST */
- tmp = readl(SC_VPLL27ACTRL2);
- tmp |= 0x10000000;
- writel(tmp, SC_VPLL27ACTRL2);
- tmp = readl(SC_VPLL27BCTRL2);
- tmp |= 0x10000000;
- writel(tmp, SC_VPLL27BCTRL2);
-
- /* set 0 to VPLA27WP and VPLA27WP */
- tmp = readl(SC_VPLL27ACTRL);
- tmp &= ~0x00000001;
- writel(tmp, SC_VPLL27ACTRL);
- tmp = readl(SC_VPLL27BCTRL);
- tmp |= ~0x00000001;
- writel(tmp, SC_VPLL27BCTRL);
-}
-
-int uniphier_sld8_pll_init(const struct uniphier_board_data *bd)
-{
- dpll_init();
- upll_init();
- vpll_init();
-
- /*
- * Wait 500 usec until dpll get stable
- * We wait 10 usec in upll_init() and vpll_init()
- * so 20 usec can be saved here.
- */
- udelay(480);
+ /* Wait 500 usec until dpll gets stable */
+ udelay(500);
return 0;
}
diff --git a/arch/arm/mach-uniphier/pll/pll-spectrum-ld4.c b/arch/arm/mach-uniphier/pll/pll-spectrum-ld4.c
deleted file mode 100644
index dc97697..0000000
--- a/arch/arm/mach-uniphier/pll/pll-spectrum-ld4.c
+++ /dev/null
@@ -1,21 +0,0 @@
-/*
- * Copyright (C) 2011-2015 Masahiro Yamada <yamada.masahiro@socionext.com>
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <linux/io.h>
-
-#include "../init.h"
-#include "../sc-regs.h"
-
-int uniphier_ld4_enable_dpll_ssc(const struct uniphier_board_data *bd)
-{
- u32 tmp;
-
- tmp = readl(SC_DPLLCTRL);
- tmp |= SC_DPLLCTRL_SSC_EN;
- writel(tmp, SC_DPLLCTRL);
-
- return 0;
-}
diff --git a/arch/arm/mach-uniphier/pll/pll-spectrum-sld3.c b/arch/arm/mach-uniphier/pll/pll-spectrum-sld3.c
deleted file mode 100644
index ff09a92..0000000
--- a/arch/arm/mach-uniphier/pll/pll-spectrum-sld3.c
+++ /dev/null
@@ -1,22 +0,0 @@
-/*
- * Copyright (C) 2011-2015 Masahiro Yamada <yamada.masahiro@socionext.com>
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <common.h>
-#include <linux/io.h>
-
-#include "../init.h"
-#include "../sc-regs.h"
-
-int uniphier_sld3_enable_dpll_ssc(const struct uniphier_board_data *bd)
-{
- u32 tmp;
-
- tmp = readl(SC_DPLLCTRL);
- tmp |= SC_DPLLCTRL_SSC_EN;
- writel(tmp, SC_DPLLCTRL);
-
- return 0;
-}