| Message ID | 1380540055-469-3-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: > RPLL is needed to drive the LCD panel on Exynos5420 based boards. > > Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com> > --- > arch/arm/cpu/armv7/exynos/clock_init.h | 3 +++ > arch/arm/cpu/armv7/exynos/clock_init_exynos5.c | 13 +++++++++++++ > 2 files changed, 16 insertions(+) > > diff --git a/arch/arm/cpu/armv7/exynos/clock_init.h > b/arch/arm/cpu/armv7/exynos/clock_init.h > index a875d0b..fce502f 100644 > --- a/arch/arm/cpu/armv7/exynos/clock_init.h > +++ b/arch/arm/cpu/armv7/exynos/clock_init.h > @@ -75,6 +75,9 @@ struct mem_timings { > unsigned spll_mdiv; > unsigned spll_pdiv; > unsigned spll_sdiv; > + unsigned rpll_mdiv; > + unsigned rpll_pdiv; > + unsigned rpll_sdiv; > unsigned pclk_cdrex_ratio; > unsigned direct_cmd_msr[MEM_TIMINGS_MSR_COUNT]; > > diff --git a/arch/arm/cpu/armv7/exynos/clock_init_exynos5.c > b/arch/arm/cpu/armv7/exynos/clock_init_exynos5.c > index e7f1496..c91c4a1 100644 > --- a/arch/arm/cpu/armv7/exynos/clock_init_exynos5.c > +++ b/arch/arm/cpu/armv7/exynos/clock_init_exynos5.c > @@ -179,6 +179,10 @@ struct mem_timings mem_timings[] = { > .spll_mdiv = 0xc8, > .spll_pdiv = 0x3, > .spll_sdiv = 0x2, > + /* RPLL @266MHz */ > + .rpll_mdiv = 0x10A, > + .rpll_pdiv = 0x3, > + .rpll_sdiv = 0x3, > > .direct_cmd_msr = { > 0x00020018, 0x00030000, 0x00010046, 0x00000d70, > @@ -800,6 +804,7 @@ static void exynos5420_system_clock_init(void) > writel(mem->ipll_pdiv * PLL_LOCK_FACTOR, &clk->ipll_lock); > writel(mem->spll_pdiv * PLL_LOCK_FACTOR, &clk->spll_lock); > writel(mem->kpll_pdiv * PLL_LOCK_FACTOR, &clk->kpll_lock); > + writel(mem->rpll_pdiv * PLL_X_LOCK_FACTOR, &clk->rpll_lock); > > setbits_le32(&clk->src_cpu, MUX_HPM_SEL_MASK); > > @@ -898,6 +903,14 @@ static void exynos5420_system_clock_init(void) > while ((readl(&clk->spll_con0) & PLL_LOCKED) == 0) > ; > > + /* Set RPLL */ > + writel(RPLL_CON2_VAL, &clk->rpll_con2); > + writel(RPLL_CON1_VAL, &clk->rpll_con1); > + val = set_pll(mem->rpll_mdiv, mem->rpll_pdiv, mem->rpll_sdiv); > + writel(val, &clk->rpll_con0); > + while ((readl(&clk->rpll_con0) & PLL_LOCKED) == 0) > + ; > + > writel(CLK_DIV_CDREX0_VAL, &clk->div_cdrex0); > writel(CLK_DIV_CDREX1_VAL, &clk->div_cdrex1); > > -- > 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: > RPLL is needed to drive the LCD panel on Exynos5420 based boards. > > 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_init.h b/arch/arm/cpu/armv7/exynos/clock_init.h index a875d0b..fce502f 100644 --- a/arch/arm/cpu/armv7/exynos/clock_init.h +++ b/arch/arm/cpu/armv7/exynos/clock_init.h @@ -75,6 +75,9 @@ struct mem_timings { unsigned spll_mdiv; unsigned spll_pdiv; unsigned spll_sdiv; + unsigned rpll_mdiv; + unsigned rpll_pdiv; + unsigned rpll_sdiv; unsigned pclk_cdrex_ratio; unsigned direct_cmd_msr[MEM_TIMINGS_MSR_COUNT]; diff --git a/arch/arm/cpu/armv7/exynos/clock_init_exynos5.c b/arch/arm/cpu/armv7/exynos/clock_init_exynos5.c index e7f1496..c91c4a1 100644 --- a/arch/arm/cpu/armv7/exynos/clock_init_exynos5.c +++ b/arch/arm/cpu/armv7/exynos/clock_init_exynos5.c @@ -179,6 +179,10 @@ struct mem_timings mem_timings[] = { .spll_mdiv = 0xc8, .spll_pdiv = 0x3, .spll_sdiv = 0x2, + /* RPLL @266MHz */ + .rpll_mdiv = 0x10A, + .rpll_pdiv = 0x3, + .rpll_sdiv = 0x3, .direct_cmd_msr = { 0x00020018, 0x00030000, 0x00010046, 0x00000d70, @@ -800,6 +804,7 @@ static void exynos5420_system_clock_init(void) writel(mem->ipll_pdiv * PLL_LOCK_FACTOR, &clk->ipll_lock); writel(mem->spll_pdiv * PLL_LOCK_FACTOR, &clk->spll_lock); writel(mem->kpll_pdiv * PLL_LOCK_FACTOR, &clk->kpll_lock); + writel(mem->rpll_pdiv * PLL_X_LOCK_FACTOR, &clk->rpll_lock); setbits_le32(&clk->src_cpu, MUX_HPM_SEL_MASK); @@ -898,6 +903,14 @@ static void exynos5420_system_clock_init(void) while ((readl(&clk->spll_con0) & PLL_LOCKED) == 0) ; + /* Set RPLL */ + writel(RPLL_CON2_VAL, &clk->rpll_con2); + writel(RPLL_CON1_VAL, &clk->rpll_con1); + val = set_pll(mem->rpll_mdiv, mem->rpll_pdiv, mem->rpll_sdiv); + writel(val, &clk->rpll_con0); + while ((readl(&clk->rpll_con0) & PLL_LOCKED) == 0) + ; + writel(CLK_DIV_CDREX0_VAL, &clk->div_cdrex0); writel(CLK_DIV_CDREX1_VAL, &clk->div_cdrex1);
RPLL is needed to drive the LCD panel on Exynos5420 based boards. Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com> --- arch/arm/cpu/armv7/exynos/clock_init.h | 3 +++ arch/arm/cpu/armv7/exynos/clock_init_exynos5.c | 13 +++++++++++++ 2 files changed, 16 insertions(+)