| Message ID | 1380540055-469-4-git-send-email-ajaykumar.rs@samsung.com |
|---|---|
| State | Changes Requested |
| Delegated to: | Minkyu Kang |
| Headers | show |
ping. On Mon, Sep 30, 2013 at 4:50 PM, Ajay Kumar <ajaykumar.rs@samsung.com>wrote: > Add get_lcd_clk and set_lcd_clk callbacks for Exynos5420 needed by > exynos video driver. > Also, configure ACLK_400_DISP1 as the parent for > MUX_ACLK_400_DISP1_SUB_SEL. > > Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com> > --- > arch/arm/cpu/armv7/exynos/clock.c | 74 > +++++++++++++++++++++++++++++-- > arch/arm/cpu/armv7/exynos/exynos5_setup.h | 2 +- > arch/arm/include/asm/arch-exynos/clk.h | 1 + > 3 files changed, 73 insertions(+), 4 deletions(-) > > diff --git a/arch/arm/cpu/armv7/exynos/clock.c > b/arch/arm/cpu/armv7/exynos/clock.c > index bc06995..e953ddc 100644 > --- a/arch/arm/cpu/armv7/exynos/clock.c > +++ b/arch/arm/cpu/armv7/exynos/clock.c > @@ -82,7 +82,8 @@ static int exynos_get_pll_clk(int pllreg, unsigned int > r, unsigned int k) > * VPLL_CON: MIDV [24:16] > * BPLL_CON: MIDV [25:16]: Exynos5 > */ > - if (pllreg == APLL || pllreg == MPLL || pllreg == BPLL) > + if (pllreg == APLL || pllreg == MPLL || > + pllreg == BPLL || pllreg == SPLL) > mask = 0x3ff; > else > mask = 0x1ff; > @@ -388,6 +389,9 @@ static unsigned long exynos5420_get_pll_clk(int pllreg) > r = readl(&clk->rpll_con0); > k = readl(&clk->rpll_con1); > break; > + case SPLL: > + r = readl(&clk->spll_con0); > + break; > default: > printf("Unsupported PLL (%d)\n", pllreg); > return 0; > @@ -1035,6 +1039,40 @@ static unsigned long exynos5_get_lcd_clk(void) > return pclk; > } > > +static unsigned long exynos5420_get_lcd_clk(void) > +{ > + struct exynos5420_clock *clk = > + (struct exynos5420_clock *)samsung_get_base_clock(); > + unsigned long pclk, sclk; > + unsigned int sel; > + unsigned int ratio; > + > + /* > + * CLK_SRC_DISP10 > + * FIMD1_SEL [4] > + * 0: SCLK_RPLL > + * 1: SCLK_SPLL > + */ > + sel = readl(&clk->src_disp10); > + sel &= (1 << 4); > + > + if (sel) > + sclk = get_pll_clk(SPLL); > + else > + sclk = get_pll_clk(RPLL); > + > + /* > + * CLK_DIV_DISP10 > + * FIMD1_RATIO [3:0] > + */ > + ratio = readl(&clk->div_disp10); > + ratio = ratio & 0xf; > + > + pclk = sclk / (ratio + 1); > + > + return pclk; > +} > + > void exynos4_set_lcd_clk(void) > { > struct exynos4_clock *clk = > @@ -1159,6 +1197,33 @@ void exynos5_set_lcd_clk(void) > writel(cfg, &clk->div_disp1_0); > } > > +void exynos5420_set_lcd_clk(void) > +{ > + struct exynos5420_clock *clk = > + (struct exynos5420_clock *)samsung_get_base_clock(); > + unsigned int cfg; > + > + /* > + * CLK_SRC_DISP10 > + * FIMD1_SEL [4] > + * 0: SCLK_RPLL > + * 1: SCLK_SPLL > + */ > + cfg = readl(&clk->src_disp10); > + cfg &= ~(0x1 << 4); > + cfg |= (0 << 4); > + writel(cfg, &clk->src_disp10); > + > + /* > + * CLK_DIV_DISP10 > + * FIMD1_RATIO [3:0] > + */ > + cfg = readl(&clk->div_disp10); > + cfg &= ~(0xf << 0); > + cfg |= (0 << 0); > + writel(cfg, &clk->div_disp10); > +} > + > void exynos4_set_mipi_clk(void) > { > struct exynos4_clock *clk = > @@ -1628,14 +1693,17 @@ unsigned long get_lcd_clk(void) > { > if (cpu_is_exynos4()) > return exynos4_get_lcd_clk(); > - else > - return exynos5_get_lcd_clk(); > + else if (proid_is_exynos5420()) > + return exynos5420_get_lcd_clk(); > + return exynos5_get_lcd_clk(); > } > > void set_lcd_clk(void) > { > if (cpu_is_exynos4()) > exynos4_set_lcd_clk(); > + else if (proid_is_exynos5420()) > + exynos5420_set_lcd_clk(); > else > exynos5_set_lcd_clk(); > } > diff --git a/arch/arm/cpu/armv7/exynos/exynos5_setup.h > b/arch/arm/cpu/armv7/exynos/exynos5_setup.h > index 8e05a00..70b1c04 100644 > --- a/arch/arm/cpu/armv7/exynos/exynos5_setup.h > +++ b/arch/arm/cpu/armv7/exynos/exynos5_setup.h > @@ -780,7 +780,7 @@ > #define CLK_SRC_TOP2_VAL 0x11101000 > #define CLK_SRC_TOP3_VAL 0x11111111 > #define CLK_SRC_TOP4_VAL 0x11110111 > -#define CLK_SRC_TOP5_VAL 0x11111100 > +#define CLK_SRC_TOP5_VAL 0x11111101 > #define CLK_SRC_TOP6_VAL 0x11110111 > #define CLK_SRC_TOP7_VAL 0x00022200 > > diff --git a/arch/arm/include/asm/arch-exynos/clk.h > b/arch/arm/include/asm/arch-exynos/clk.h > index abce246..f0b4d70 100644 > --- a/arch/arm/include/asm/arch-exynos/clk.h > +++ b/arch/arm/include/asm/arch-exynos/clk.h > @@ -15,6 +15,7 @@ > #define VPLL 4 > #define BPLL 5 > #define RPLL 6 > +#define SPLL 7 > > enum pll_src_bit { > EXYNOS_SRC_MPLL = 6, > -- > 1.7.12.4 > > _______________________________________________ > U-Boot mailing list > U-Boot@lists.denx.de > http://lists.denx.de/mailman/listinfo/u-boot >
On Mon, Sep 30, 2013 at 5:20 AM, Ajay Kumar <ajaykumar.rs@samsung.com>wrote: > Add get_lcd_clk and set_lcd_clk callbacks for Exynos5420 needed by > exynos video driver. > Also, configure ACLK_400_DISP1 as the parent for > MUX_ACLK_400_DISP1_SUB_SEL. > > Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com> > Acked-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/arm/cpu/armv7/exynos/clock.c b/arch/arm/cpu/armv7/exynos/clock.c index bc06995..e953ddc 100644 --- a/arch/arm/cpu/armv7/exynos/clock.c +++ b/arch/arm/cpu/armv7/exynos/clock.c @@ -82,7 +82,8 @@ static int exynos_get_pll_clk(int pllreg, unsigned int r, unsigned int k) * VPLL_CON: MIDV [24:16] * BPLL_CON: MIDV [25:16]: Exynos5 */ - if (pllreg == APLL || pllreg == MPLL || pllreg == BPLL) + if (pllreg == APLL || pllreg == MPLL || + pllreg == BPLL || pllreg == SPLL) mask = 0x3ff; else mask = 0x1ff; @@ -388,6 +389,9 @@ static unsigned long exynos5420_get_pll_clk(int pllreg) r = readl(&clk->rpll_con0); k = readl(&clk->rpll_con1); break; + case SPLL: + r = readl(&clk->spll_con0); + break; default: printf("Unsupported PLL (%d)\n", pllreg); return 0; @@ -1035,6 +1039,40 @@ static unsigned long exynos5_get_lcd_clk(void) return pclk; } +static unsigned long exynos5420_get_lcd_clk(void) +{ + struct exynos5420_clock *clk = + (struct exynos5420_clock *)samsung_get_base_clock(); + unsigned long pclk, sclk; + unsigned int sel; + unsigned int ratio; + + /* + * CLK_SRC_DISP10 + * FIMD1_SEL [4] + * 0: SCLK_RPLL + * 1: SCLK_SPLL + */ + sel = readl(&clk->src_disp10); + sel &= (1 << 4); + + if (sel) + sclk = get_pll_clk(SPLL); + else + sclk = get_pll_clk(RPLL); + + /* + * CLK_DIV_DISP10 + * FIMD1_RATIO [3:0] + */ + ratio = readl(&clk->div_disp10); + ratio = ratio & 0xf; + + pclk = sclk / (ratio + 1); + + return pclk; +} + void exynos4_set_lcd_clk(void) { struct exynos4_clock *clk = @@ -1159,6 +1197,33 @@ void exynos5_set_lcd_clk(void) writel(cfg, &clk->div_disp1_0); } +void exynos5420_set_lcd_clk(void) +{ + struct exynos5420_clock *clk = + (struct exynos5420_clock *)samsung_get_base_clock(); + unsigned int cfg; + + /* + * CLK_SRC_DISP10 + * FIMD1_SEL [4] + * 0: SCLK_RPLL + * 1: SCLK_SPLL + */ + cfg = readl(&clk->src_disp10); + cfg &= ~(0x1 << 4); + cfg |= (0 << 4); + writel(cfg, &clk->src_disp10); + + /* + * CLK_DIV_DISP10 + * FIMD1_RATIO [3:0] + */ + cfg = readl(&clk->div_disp10); + cfg &= ~(0xf << 0); + cfg |= (0 << 0); + writel(cfg, &clk->div_disp10); +} + void exynos4_set_mipi_clk(void) { struct exynos4_clock *clk = @@ -1628,14 +1693,17 @@ unsigned long get_lcd_clk(void) { if (cpu_is_exynos4()) return exynos4_get_lcd_clk(); - else - return exynos5_get_lcd_clk(); + else if (proid_is_exynos5420()) + return exynos5420_get_lcd_clk(); + return exynos5_get_lcd_clk(); } void set_lcd_clk(void) { if (cpu_is_exynos4()) exynos4_set_lcd_clk(); + else if (proid_is_exynos5420()) + exynos5420_set_lcd_clk(); else exynos5_set_lcd_clk(); } diff --git a/arch/arm/cpu/armv7/exynos/exynos5_setup.h b/arch/arm/cpu/armv7/exynos/exynos5_setup.h index 8e05a00..70b1c04 100644 --- a/arch/arm/cpu/armv7/exynos/exynos5_setup.h +++ b/arch/arm/cpu/armv7/exynos/exynos5_setup.h @@ -780,7 +780,7 @@ #define CLK_SRC_TOP2_VAL 0x11101000 #define CLK_SRC_TOP3_VAL 0x11111111 #define CLK_SRC_TOP4_VAL 0x11110111 -#define CLK_SRC_TOP5_VAL 0x11111100 +#define CLK_SRC_TOP5_VAL 0x11111101 #define CLK_SRC_TOP6_VAL 0x11110111 #define CLK_SRC_TOP7_VAL 0x00022200 diff --git a/arch/arm/include/asm/arch-exynos/clk.h b/arch/arm/include/asm/arch-exynos/clk.h index abce246..f0b4d70 100644 --- a/arch/arm/include/asm/arch-exynos/clk.h +++ b/arch/arm/include/asm/arch-exynos/clk.h @@ -15,6 +15,7 @@ #define VPLL 4 #define BPLL 5 #define RPLL 6 +#define SPLL 7 enum pll_src_bit { EXYNOS_SRC_MPLL = 6,
Add get_lcd_clk and set_lcd_clk callbacks for Exynos5420 needed by exynos video driver. Also, configure ACLK_400_DISP1 as the parent for MUX_ACLK_400_DISP1_SUB_SEL. Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com> --- arch/arm/cpu/armv7/exynos/clock.c | 74 +++++++++++++++++++++++++++++-- arch/arm/cpu/armv7/exynos/exynos5_setup.h | 2 +- arch/arm/include/asm/arch-exynos/clk.h | 1 + 3 files changed, 73 insertions(+), 4 deletions(-)