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Subject[PATCH 08/11] clk: exynos7: Add required clock tree for USB
Date
Adding required gate clocks for USB3.0 DRD controller
present on Exynos7.

Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com>
---
drivers/clk/samsung/clk-exynos7.c | 64 +++++++++++++++++++++++++++++++
include/dt-bindings/clock/exynos7-clk.h | 9 ++++-
2 files changed, 72 insertions(+), 1 deletion(-)

diff --git a/drivers/clk/samsung/clk-exynos7.c b/drivers/clk/samsung/clk-exynos7.c
index ea4483b..3128593 100644
--- a/drivers/clk/samsung/clk-exynos7.c
+++ b/drivers/clk/samsung/clk-exynos7.c
@@ -343,6 +343,8 @@ static struct samsung_mux_clock top1_mux_clks[] __initdata = {
MUX(0, "mout_aclk_fsys0_200", mout_top1_group1, MUX_SEL_TOP13, 28, 2),

MUX(0, "mout_sclk_mmc2", mout_top1_group1, MUX_SEL_TOP1_FSYS0, 24, 2),
+ MUX(0, "mout_sclk_usbdrd300", mout_top1_group1,
+ MUX_SEL_TOP1_FSYS0, 28, 2),

MUX(0, "mout_sclk_mmc1", mout_top1_group1, MUX_SEL_TOP1_FSYS1, 24, 2),
MUX(0, "mout_sclk_mmc0", mout_top1_group1, MUX_SEL_TOP1_FSYS1, 28, 2),
@@ -356,6 +358,8 @@ static struct samsung_div_clock top1_div_clks[] __initdata = {

DIV(DOUT_SCLK_MMC2, "dout_sclk_mmc2", "mout_sclk_mmc2",
DIV_TOP1_FSYS0, 24, 4),
+ DIV(0, "dout_sclk_usbdrd300", "mout_sclk_usbdrd300",
+ DIV_TOP1_FSYS0, 28, 4),

DIV(DOUT_SCLK_MMC1, "dout_sclk_mmc1", "mout_sclk_mmc1",
DIV_TOP1_FSYS1, 24, 4),
@@ -366,6 +370,8 @@ static struct samsung_div_clock top1_div_clks[] __initdata = {
static struct samsung_gate_clock top1_gate_clks[] __initdata = {
GATE(CLK_SCLK_MMC2, "sclk_mmc2", "dout_sclk_mmc2",
ENABLE_SCLK_TOP1_FSYS0, 24, CLK_SET_RATE_PARENT, 0),
+ GATE(0, "sclk_usbdrd300", "dout_sclk_usbdrd300",
+ ENABLE_SCLK_TOP1_FSYS0, 28, 0, 0),

GATE(CLK_SCLK_MMC1, "sclk_mmc1", "dout_sclk_mmc1",
ENABLE_SCLK_TOP1_FSYS1, 24, CLK_SET_RATE_PARENT, 0),
@@ -647,7 +653,12 @@ CLK_OF_DECLARE(exynos7_clk_peris, "samsung,exynos7-clock-peris",
/* Register Offset definitions for CMU_FSYS0 (0x10E90000) */
#define MUX_SEL_FSYS00 0x0200
#define MUX_SEL_FSYS01 0x0204
+#define MUX_SEL_FSYS02 0x0208
+#define ENABLE_ACLK_FSYS00 0x0800
#define ENABLE_ACLK_FSYS01 0x0804
+#define ENABLE_SCLK_FSYS01 0x0A04
+#define ENABLE_SCLK_FSYS02 0x0A08
+#define ENABLE_SCLK_FSYS04 0x0A10

/*
* List of parent clocks for Muxes in CMU_FSYS0
@@ -655,10 +666,29 @@ CLK_OF_DECLARE(exynos7_clk_peris, "samsung,exynos7-clock-peris",
PNAME(mout_aclk_fsys0_200_p) = { "fin_pll", "dout_aclk_fsys0_200" };
PNAME(mout_sclk_mmc2_p) = { "fin_pll", "sclk_mmc2" };

+PNAME(mout_sclk_usbdrd300_p) = { "fin_pll", "sclk_usbdrd300" };
+PNAME(mout_phyclk_usbdrd300_udrd30_phyclk_p) = { "fin_pll",
+ "phyclk_usbdrd300_udrd30_phyclock" };
+PNAME(mout_phyclk_usbdrd300_udrd30_pipe_pclk_p) = { "fin_pll",
+ "phyclk_usbdrd300_udrd30_pipe_pclk" };
+
+/* fixed rate clocks used in the FSYS0 block */
+struct samsung_fixed_rate_clock fixed_rate_clks_fsys0[] __initdata = {
+ FRATE(0, "phyclk_usbdrd300_udrd30_phyclock", NULL,
+ CLK_IS_ROOT, 60000000),
+ FRATE(0, "phyclk_usbdrd300_udrd30_pipe_pclk", NULL,
+ CLK_IS_ROOT, 125000000),
+};
+
static unsigned long fsys0_clk_regs[] __initdata = {
MUX_SEL_FSYS00,
MUX_SEL_FSYS01,
+ MUX_SEL_FSYS02,
+ ENABLE_ACLK_FSYS00,
ENABLE_ACLK_FSYS01,
+ ENABLE_SCLK_FSYS01,
+ ENABLE_SCLK_FSYS02,
+ ENABLE_SCLK_FSYS04,
};

static struct samsung_mux_clock fsys0_mux_clks[] __initdata = {
@@ -666,11 +696,45 @@ static struct samsung_mux_clock fsys0_mux_clks[] __initdata = {
MUX_SEL_FSYS00, 24, 1),

MUX(0, "mout_sclk_mmc2_user", mout_sclk_mmc2_p, MUX_SEL_FSYS01, 24, 1),
+ MUX(0, "mout_sclk_usbdrd300_user", mout_sclk_usbdrd300_p,
+ MUX_SEL_FSYS01, 28, 1),
+
+ MUX(0, "mout_phyclk_usbdrd300_udrd30_pipe_pclk_user",
+ mout_phyclk_usbdrd300_udrd30_pipe_pclk_p,
+ MUX_SEL_FSYS02, 24, 1),
+ MUX(0, "mout_phyclk_usbdrd300_udrd30_phyclk_user",
+ mout_phyclk_usbdrd300_udrd30_phyclk_p,
+ MUX_SEL_FSYS02, 28, 1),
};

static struct samsung_gate_clock fsys0_gate_clks[] __initdata = {
+ GATE(ACLK_AXIUS_USBDRD30X_FSYS0X, "aclk_axius_usbdrd30x_fsys0x",
+ "mout_aclk_fsys0_200_user",
+ ENABLE_ACLK_FSYS00, 19, 0, 0),
+
+ GATE(ACLK_USBDRD300, "aclk_usbdrd300", "mout_aclk_fsys0_200_user",
+ ENABLE_ACLK_FSYS01, 29, 0, 0),
GATE(ACLK_MMC2, "aclk_mmc2", "mout_aclk_fsys0_200_user",
ENABLE_ACLK_FSYS01, 31, 0, 0),
+
+ GATE(SCLK_USBDRD300_SUSPENDCLK, "sclk_usbdrd300_suspendclk",
+ "mout_sclk_usbdrd300_user",
+ ENABLE_SCLK_FSYS01, 4, 0, 0),
+ GATE(SCLK_USBDRD300_REFCLK, "sclk_usbdrd300_refclk", "fin_pll",
+ ENABLE_SCLK_FSYS01, 8, 0, 0),
+
+ GATE(PHYCLK_USBDRD300_UDRD30_PIPE_PCLK_USER,
+ "phyclk_usbdrd300_udrd30_pipe_pclk_user",
+ "mout_phyclk_usbdrd300_udrd30_pipe_pclk_user",
+ ENABLE_SCLK_FSYS02, 24, 0, 0),
+ GATE(PHYCLK_USBDRD300_UDRD30_PHYCLK_USER,
+ "phyclk_usbdrd300_udrd30_phyclk_user",
+ "mout_phyclk_usbdrd300_udrd30_phyclk_user",
+ ENABLE_SCLK_FSYS02, 28, 0, 0),
+
+ GATE(OSCCLK_PHY_CLKOUT_USB30_PHY, "oscclk_phy_clkout_usb30_phy",
+ "fin_pll",
+ ENABLE_SCLK_FSYS04, 28, 0, 0),
};

static struct samsung_cmu_info fsys0_cmu_info __initdata = {
diff --git a/include/dt-bindings/clock/exynos7-clk.h b/include/dt-bindings/clock/exynos7-clk.h
index 8e4681b..eef2116 100644
--- a/include/dt-bindings/clock/exynos7-clk.h
+++ b/include/dt-bindings/clock/exynos7-clk.h
@@ -82,7 +82,14 @@

/* FSYS0 */
#define ACLK_MMC2 1
-#define FSYS0_NR_CLK 2
+#define ACLK_AXIUS_USBDRD30X_FSYS0X 2
+#define ACLK_USBDRD300 3
+#define SCLK_USBDRD300_SUSPENDCLK 4
+#define SCLK_USBDRD300_REFCLK 5
+#define PHYCLK_USBDRD300_UDRD30_PIPE_PCLK_USER 6
+#define PHYCLK_USBDRD300_UDRD30_PHYCLK_USER 7
+#define OSCCLK_PHY_CLKOUT_USB30_PHY 8
+#define FSYS0_NR_CLK 9

/* FSYS1 */
#define ACLK_MMC1 1
--
1.7.10.4


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