[PATCH 3/7] clk: samsung: exynos7: add clocks for RTC block
Vivek Gautam
gautam.vivek at samsung.com
Mon Oct 20 02:48:27 PDT 2014
Hi Abhilash,
On Fri, Oct 17, 2014 at 9:41 PM, Abhilash Kesavan <a.kesavan at samsung.com> wrote:
> From: Naveen Krishna Ch <naveenkrishna.ch at gmail.com>
>
> Add clock support for the RTC block in Exynos7.
>
> Signed-off-by: Naveen Krishna Ch <naveenkrishna.ch at gmail.com>
> Signed-off-by: Abhilash Kesavan <a.kesavan at samsung.com>
> ---
> .../devicetree/bindings/clock/exynos7-clock.txt | 1 +
> drivers/clk/samsung/clk-exynos7.c | 54 ++++++++++++++++++++
> include/dt-bindings/clock/exynos7-clk.h | 17 +++---
> 3 files changed, 66 insertions(+), 6 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/clock/exynos7-clock.txt b/Documentation/devicetree/bindings/clock/exynos7-clock.txt
> index 4c69b66..aff6fd2 100644
> --- a/Documentation/devicetree/bindings/clock/exynos7-clock.txt
> +++ b/Documentation/devicetree/bindings/clock/exynos7-clock.txt
> @@ -28,6 +28,7 @@ Required Properties for Clock Controller:
> - "samsung,exynos7-clock-topc"
> - "samsung,exynos7-clock-top0"
> - "samsung,exynos7-clock-top1"
> + - "samsung,exynos7-clock-ccore"
just a nit.
you need to mention the clock sources for this block too, like it's
there for every other block in this Documentation ?
> - "samsung,exynos7-clock-peric0"
> - "samsung,exynos7-clock-peric1"
> - "samsung,exynos7-clock-peris"
> diff --git a/drivers/clk/samsung/clk-exynos7.c b/drivers/clk/samsung/clk-exynos7.c
> index f5e43fa..3a30f43 100644
> --- a/drivers/clk/samsung/clk-exynos7.c
> +++ b/drivers/clk/samsung/clk-exynos7.c
> @@ -29,7 +29,9 @@
> #define AUD_PLL_CON0 0x0140
> #define MUX_SEL_TOPC0 0x0200
> #define MUX_SEL_TOPC1 0x0204
> +#define MUX_SEL_TOPC2 0x0208
> #define MUX_SEL_TOPC3 0x020C
> +#define DIV_TOPC0 0x0600
> #define DIV_TOPC1 0x0604
> #define DIV_TOPC3 0x060C
>
> @@ -78,7 +80,9 @@ static unsigned long topc_clk_regs[] __initdata = {
> AUD_PLL_CON0,
> MUX_SEL_TOPC0,
> MUX_SEL_TOPC1,
> + MUX_SEL_TOPC2,
> MUX_SEL_TOPC3,
> + DIV_TOPC0,
> DIV_TOPC1,
> DIV_TOPC3,
> };
> @@ -101,10 +105,15 @@ static struct samsung_mux_clock topc_mux_clks[] __initdata = {
> MUX(0, "mout_sclk_bus0_pll_out", mout_sclk_bus0_pll_out_p,
> MUX_SEL_TOPC1, 16, 1),
>
> + MUX(0, "mout_aclk_ccore_133", mout_topc_group2, MUX_SEL_TOPC2, 4, 2),
> +
> MUX(0, "mout_aclk_peris_66", mout_topc_group2, MUX_SEL_TOPC3, 24, 2),
> };
>
> static struct samsung_div_clock topc_div_clks[] __initdata = {
> + DIV(DOUT_ACLK_CCORE_133, "dout_aclk_ccore_133", "mout_aclk_ccore_133",
> + DIV_TOPC0, 4, 4),
> +
> DIV(DOUT_ACLK_PERIS, "dout_aclk_peris_66", "mout_aclk_peris_66",
> DIV_TOPC1, 24, 4),
>
> @@ -393,6 +402,51 @@ static void __init exynos7_clk_top1_init(struct device_node *np)
> CLK_OF_DECLARE(exynos7_clk_top1, "samsung,exynos7-clock-top1",
> exynos7_clk_top1_init);
>
> +/* Register Offset definitions for CMU_CCORE (0x105B0000) */
> +#define MUX_SEL_CCORE 0x0200
> +#define DIV_CCORE 0x0600
> +#define ENABLE_ACLK_CCORE0 0x0800
> +#define ENABLE_ACLK_CCORE1 0x0804
> +#define ENABLE_PCLK_CCORE 0x0900
> +
> +/*
> + * List of parent clocks for Muxes in CMU_CCORE
> + */
> +PNAME(mout_aclk_ccore_133_p) = { "fin_pll", "dout_aclk_ccore_133" };
> +
> +static unsigned long ccore_clk_regs[] __initdata = {
> + MUX_SEL_CCORE,
> + ENABLE_PCLK_CCORE,
> +};
> +
> +static struct samsung_mux_clock ccore_mux_clks[] __initdata = {
> + MUX(0, "mout_aclk_ccore_133_user", mout_aclk_ccore_133_p,
> + MUX_SEL_CCORE, 1, 1),
> +};
> +
> +static struct samsung_gate_clock ccore_gate_clks[] __initdata = {
> + GATE(PCLK_RTC, "pclk_rtc", "mout_aclk_ccore_133_user",
> + ENABLE_PCLK_CCORE, 8, 0, 0),
> +};
> +
> +static struct samsung_cmu_info ccore_cmu_info __initdata = {
> + .mux_clks = ccore_mux_clks,
> + .nr_mux_clks = ARRAY_SIZE(ccore_mux_clks),
> + .gate_clks = ccore_gate_clks,
> + .nr_gate_clks = ARRAY_SIZE(ccore_gate_clks),
> + .nr_clk_ids = CCORE_NR_CLK,
> + .clk_regs = ccore_clk_regs,
> + .nr_clk_regs = ARRAY_SIZE(ccore_clk_regs),
> +};
> +
> +static void __init exynos7_clk_ccore_init(struct device_node *np)
> +{
> + samsung_cmu_register_one(np, &ccore_cmu_info);
> +}
> +
> +CLK_OF_DECLARE(exynos7_clk_ccore, "samsung,exynos7-clock-ccore",
> + exynos7_clk_ccore_init);
> +
> /* Register Offset definitions for CMU_PERIC0 (0x13610000) */
> #define MUX_SEL_PERIC0 0x0200
> #define ENABLE_PCLK_PERIC0 0x0900
> diff --git a/include/dt-bindings/clock/exynos7-clk.h b/include/dt-bindings/clock/exynos7-clk.h
> index ff63c4e..3227679 100644
> --- a/include/dt-bindings/clock/exynos7-clk.h
> +++ b/include/dt-bindings/clock/exynos7-clk.h
> @@ -11,12 +11,13 @@
> #define _DT_BINDINGS_CLOCK_EXYNOS7_H
>
> /* TOPC */
> -#define DOUT_ACLK_PERIS 1
> -#define DOUT_SCLK_BUS0_PLL 2
> -#define DOUT_SCLK_BUS1_PLL 3
> -#define DOUT_SCLK_CC_PLL 4
> -#define DOUT_SCLK_MFC_PLL 5
> -#define TOPC_NR_CLK 6
> +#define DOUT_ACLK_CCORE_133 1
> +#define DOUT_ACLK_PERIS 2
> +#define DOUT_SCLK_BUS0_PLL 3
> +#define DOUT_SCLK_BUS1_PLL 4
> +#define DOUT_SCLK_CC_PLL 5
> +#define DOUT_SCLK_MFC_PLL 6
> +#define TOPC_NR_CLK 7
>
> /* TOP0 */
> #define DOUT_ACLK_PERIC1 1
> @@ -38,6 +39,10 @@
> #define CLK_SCLK_MMC0 8
> #define TOP1_NR_CLK 9
>
> +/* CCORE */
> +#define PCLK_RTC 1
> +#define CCORE_NR_CLK 2
> +
> /* PERIC0 */
> #define PCLK_UART0 1
> #define SCLK_UART0 2
> --
> 1.7.9.5
>
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--
Best Regards
Vivek Gautam
Samsung R&D Institute, Bangalore
India
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