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 | 5 ++
drivers/clk/samsung/clk-exynos7.c | 54 ++++++++++++++++++++
include/dt-bindings/clock/exynos7-clk.h | 17 +++---
3 files changed, 70 insertions(+), 6 deletions(-)
diff --git a/Documentation/devicetree/bindings/clock/exynos7-clock.txt b/Documentation/devicetree/bindings/clock/exynos7-clock.txt
index b29cb50..6d3d5f8 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"
- "samsung,exynos7-clock-peric0"
- "samsung,exynos7-clock-peric1"
- "samsung,exynos7-clock-peris"
@@ -60,6 +61,10 @@ Input clocks for top1 clock controller:
- dout_sclk_cc_pll
- dout_sclk_mfc_pll
+Input clocks for ccore clock controller:
+ - fin_pll
+ - dout_aclk_ccore_133
+
Input clocks for peric0 clock controller:
- fin_pll
- dout_aclk_peric0_66
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