[PATCH v2 2/4] clk: samsung: exynos4: Add CLKOUT clock hierarchy
Tomasz Figa
t.figa at samsung.com
Tue Jun 24 09:08:25 PDT 2014
This patch adds definitions of clocks that are used to drive clock
output signals of particular CMU sub-blocks that are then fed to PMU and
handled by Exynos CLKOUT driver added in further patch.
Signed-off-by: Tomasz Figa <t.figa at samsung.com>
---
drivers/clk/samsung/clk-exynos4.c | 116 ++++++++++++++++++++++++++++++++++--
include/dt-bindings/clock/exynos4.h | 5 ++
2 files changed, 117 insertions(+), 4 deletions(-)
diff --git a/drivers/clk/samsung/clk-exynos4.c b/drivers/clk/samsung/clk-exynos4.c
index f95ae6c..7d1fb99 100644
--- a/drivers/clk/samsung/clk-exynos4.c
+++ b/drivers/clk/samsung/clk-exynos4.c
@@ -25,10 +25,12 @@
#define DIV_LEFTBUS 0x4500
#define GATE_IP_LEFTBUS 0x4800
#define E4X12_GATE_IP_IMAGE 0x4930
+#define CLKOUT_CMU_LEFTBUS 0x4a00
#define SRC_RIGHTBUS 0x8200
#define DIV_RIGHTBUS 0x8500
#define GATE_IP_RIGHTBUS 0x8800
#define E4X12_GATE_IP_PERIR 0x8960
+#define CLKOUT_CMU_RIGHTBUS 0x8a00
#define EPLL_LOCK 0xc010
#define VPLL_LOCK 0xc020
#define EPLL_CON0 0xc110
@@ -98,6 +100,7 @@
#define GATE_IP_PERIL 0xc950
#define E4210_GATE_IP_PERIR 0xc960
#define GATE_BLOCK 0xc970
+#define CLKOUT_CMU_TOP 0xca00
#define E4X12_MPLL_LOCK 0x10008
#define E4X12_MPLL_CON0 0x10108
#define SRC_DMC 0x10200
@@ -105,6 +108,7 @@
#define DIV_DMC0 0x10500
#define DIV_DMC1 0x10504
#define GATE_IP_DMC 0x10900
+#define CLKOUT_CMU_DMC 0x10a00
#define APLL_LOCK 0x14000
#define E4210_MPLL_LOCK 0x14008
#define APLL_CON0 0x14100
@@ -114,6 +118,7 @@
#define DIV_CPU1 0x14504
#define GATE_SCLK_CPU 0x14800
#define GATE_IP_CPU 0x14900
+#define CLKOUT_CMU_CPU 0x14a00
#define E4X12_DIV_ISP0 0x18300
#define E4X12_DIV_ISP1 0x18304
#define E4X12_GATE_ISP0 0x18800
@@ -242,6 +247,11 @@ static unsigned long exynos4_clk_regs[] __initdata = {
DIV_CPU1,
GATE_SCLK_CPU,
GATE_IP_CPU,
+ CLKOUT_CMU_LEFTBUS,
+ CLKOUT_CMU_RIGHTBUS,
+ CLKOUT_CMU_TOP,
+ CLKOUT_CMU_DMC,
+ CLKOUT_CMU_CPU,
};
static const struct samsung_clk_reg_dump src_mask_suspend[] = {
@@ -400,6 +410,23 @@ PNAME(mout_dac_p4210) = { "sclk_vpll", "sclk_hdmiphy", };
PNAME(mout_pwi_p4210) = { "xxti", "xusbxti", "sclk_hdmi24m", "sclk_usbphy0",
"sclk_usbphy1", "sclk_hdmiphy", "none",
"sclk_epll", "sclk_vpll" };
+PNAME(clkout_left_p4210) = { "sclk_mpll_div_2", "sclk_apll_div_2",
+ "div_gdl", "div_gpl" };
+PNAME(clkout_right_p4210) = { "sclk_mpll_div_2", "sclk_apll_div_2",
+ "div_gdr", "div_gpr" };
+PNAME(clkout_top_p4210) = { "fout_epll", "fout_vpll", "sclk_hdmi24m",
+ "sclk_usbphy0", "sclk_usbphy1", "sclk_hdmiphy",
+ "cdclk0", "cdclk1", "cdclk2", "spdif_extclk",
+ "aclk160", "aclk133", "aclk200", "aclk100",
+ "sclk_mfc", "sclk_g3d", "sclk_g2d",
+ "cam_a_pclk", "cam_b_pclk", "s_rxbyteclkhs0_2l",
+ "s_rxbyteclkhs0_4l" };
+PNAME(clkout_dmc_p4210) = { "div_dmcd", "div_dmcp", "div_acp_pclk", "div_dmc",
+ "div_dphy", "none", "div_pwi" };
+PNAME(clkout_cpu_p4210) = { "fout_apll_div_2", "none", "fout_mpll_div_2",
+ "none", "arm_clk_div_2", "div_corem0",
+ "div_corem1", "div_corem0", "div_atb",
+ "div_periph", "div_pclk_dbg", "div_hpm" };
/* Exynos 4x12-specific parent groups */
PNAME(mout_mpll_user_p4x12) = { "fin_pll", "sclk_mpll", };
@@ -426,6 +453,29 @@ PNAME(mout_user_aclk266_gps_p4x12) = {"fin_pll", "div_aclk266_gps", };
PNAME(mout_pwi_p4x12) = { "xxti", "xusbxti", "sclk_hdmi24m", "sclk_usbphy0",
"none", "sclk_hdmiphy", "sclk_mpll",
"sclk_epll", "sclk_vpll" };
+PNAME(clkout_left_p4x12) = { "sclk_mpll_user_l_div_2", "sclk_apll_div_2",
+ "div_gdl", "div_gpl" };
+PNAME(clkout_right_p4x12) = { "sclk_mpll_user_r_div_2", "sclk_apll_div_2",
+ "div_gdr", "div_gpr" };
+PNAME(clkout_top_p4x12) = { "fout_epll", "fout_vpll", "sclk_hdmi24m",
+ "sclk_usbphy0", "none", "sclk_hdmiphy",
+ "cdclk0", "cdclk1", "cdclk2", "spdif_extclk",
+ "aclk160", "aclk133", "aclk200", "aclk100",
+ "sclk_mfc", "sclk_g3d", "aclk400_mcuisp",
+ "cam_a_pclk", "cam_b_pclk", "s_rxbyteclkhs0_2l",
+ "s_rxbyteclkhs0_4l", "rx_half_byte_clk_csis0",
+ "rx_half_byte_clk_csis1", "div_jpeg",
+ "sclk_pwm_isp", "sclk_spi0_isp",
+ "sclk_spi1_isp", "sclk_uart_isp",
+ "sclk_mipihsi", "sclk_hdmi", "sclk_fimd0",
+ "sclk_pcm0" };
+PNAME(clkout_dmc_p4x12) = { "div_dmcd", "div_dmcp", "aclk_acp", "div_acp_pclk",
+ "div_dmc", "div_dphy", "fout_mpll_div_2",
+ "div_pwi", "none", "div_c2c", "div_c2c_aclk" };
+PNAME(clkout_cpu_p4x12) = { "fout_apll_div_2", "none", "none", "none",
+ "arm_clk_div_2", "div_corem0", "div_corem1",
+ "div_cores", "div_atb", "div_periph",
+ "div_pclk_dbg", "div_hpm" };
/* fixed rate clocks generated outside the soc */
static struct samsung_fixed_rate_clock exynos4_fixed_rate_ext_clks[] __initdata = {
@@ -444,6 +494,24 @@ static struct samsung_fixed_rate_clock exynos4210_fixed_rate_clks[] __initdata =
FRATE(0, "sclk_usbphy1", NULL, CLK_IS_ROOT, 48000000),
};
+static struct samsung_fixed_factor_clock exynos4_fixed_factor_clks[] __initdata = {
+ FFACTOR(0, "sclk_apll_div_2", "sclk_apll", 1, 2, 0),
+ FFACTOR(0, "fout_mpll_div_2", "fout_mpll", 1, 2, 0),
+ FFACTOR(0, "fout_apll_div_2", "fout_apll", 1, 2, 0),
+ FFACTOR(0, "arm_clk_div_2", "arm_clk", 1, 2, 0),
+};
+
+static struct samsung_fixed_factor_clock exynos4210_fixed_factor_clks[] __initdata = {
+ FFACTOR(0, "sclk_mpll_div_2", "sclk_mpll", 1, 2, 0),
+};
+
+static struct samsung_fixed_factor_clock exynos4x12_fixed_factor_clks[] __initdata = {
+ FFACTOR(0, "sclk_mpll_user_l_div_2", "mout_mpll_user_l", 1, 2, 0),
+ FFACTOR(0, "sclk_mpll_user_r_div_2", "mout_mpll_user_r", 1, 2, 0),
+ FFACTOR(0, "sclk_mpll_user_t_div_2", "mout_mpll_user_t", 1, 2, 0),
+ FFACTOR(0, "sclk_mpll_user_c_div_2", "mout_mpll_user_c", 1, 2, 0),
+};
+
/* list of mux clocks supported in all exynos4 soc's */
static struct samsung_mux_clock exynos4_mux_clks[] __initdata = {
MUX_FA(CLK_MOUT_APLL, "mout_apll", mout_apll_p, SRC_CPU, 0, 1,
@@ -471,8 +539,12 @@ static struct samsung_mux_clock exynos4210_mux_early[] __initdata = {
static struct samsung_mux_clock exynos4210_mux_clks[] __initdata = {
MUX(0, "mout_gdl", sclk_ampll_p4210, SRC_LEFTBUS, 0, 1),
+ MUX(0, "mout_clkout_leftbus", clkout_left_p4210,
+ CLKOUT_CMU_LEFTBUS, 0, 5),
MUX(0, "mout_gdr", sclk_ampll_p4210, SRC_RIGHTBUS, 0, 1),
+ MUX(0, "mout_clkout_rightbus", clkout_right_p4210,
+ CLKOUT_CMU_RIGHTBUS, 0, 5),
MUX(0, "mout_aclk200", sclk_ampll_p4210, SRC_TOP0, 12, 1),
MUX(0, "mout_aclk100", sclk_ampll_p4210, SRC_TOP0, 16, 1),
@@ -519,20 +591,30 @@ static struct samsung_mux_clock exynos4210_mux_clks[] __initdata = {
MUX(0, "mout_spi0", group1_p4210, SRC_PERIL1, 16, 4),
MUX(0, "mout_spi1", group1_p4210, SRC_PERIL1, 20, 4),
MUX(0, "mout_spi2", group1_p4210, SRC_PERIL1, 24, 4),
+ MUX(0, "mout_clkout_top", clkout_top_p4210, CLKOUT_CMU_TOP, 0, 5),
MUX(0, "mout_pwi", mout_pwi_p4210, SRC_DMC, 16, 4),
+ MUX(0, "mout_clkout_dmc", clkout_dmc_p4210, CLKOUT_CMU_DMC, 0, 5),
+
+ MUX(0, "mout_clkout_cpu", clkout_cpu_p4210, CLKOUT_CMU_CPU, 0, 5),
};
/* list of mux clocks supported in exynos4x12 soc */
static struct samsung_mux_clock exynos4x12_mux_clks[] __initdata = {
MUX(0, "mout_mpll_user_l", mout_mpll_p, SRC_LEFTBUS, 4, 1),
MUX(0, "mout_gdl", mout_gdl_p4x12, SRC_LEFTBUS, 0, 1),
+ MUX(0, "mout_clkout_leftbus", clkout_left_p4x12,
+ CLKOUT_CMU_LEFTBUS, 0, 5),
MUX(0, "mout_mpll_user_r", mout_mpll_p, SRC_RIGHTBUS, 4, 1),
MUX(0, "mout_gdr", mout_gdr_p4x12, SRC_RIGHTBUS, 0, 1),
+ MUX(0, "mout_clkout_rightbus", clkout_right_p4x12,
+ CLKOUT_CMU_RIGHTBUS, 0, 5),
MUX(CLK_MOUT_MPLL_USER_C, "mout_mpll_user_c", mout_mpll_user_p4x12,
SRC_CPU, 24, 1),
+ MUX(0, "mout_clkout_cpu", clkout_cpu_p4x12, CLKOUT_CMU_CPU, 0, 5),
+
MUX(0, "mout_aclk266_gps", aclk_p4412, SRC_TOP1, 4, 1),
MUX(0, "mout_aclk400_mcuisp", aclk_p4412, SRC_TOP1, 8, 1),
MUX(CLK_MOUT_MPLL_USER_T, "mout_mpll_user_t", mout_mpll_user_p4x12,
@@ -586,24 +668,27 @@ static struct samsung_mux_clock exynos4x12_mux_clks[] __initdata = {
MUX(0, "mout_spi0", group1_p4x12, SRC_PERIL1, 16, 4),
MUX(0, "mout_spi1", group1_p4x12, SRC_PERIL1, 20, 4),
MUX(0, "mout_spi2", group1_p4x12, SRC_PERIL1, 24, 4),
- MUX(0, "mout_pwm_isp", group1_p4x12, E4X12_SRC_ISP, 0, 4),
- MUX(0, "mout_spi0_isp", group1_p4x12, E4X12_SRC_ISP, 4, 4),
- MUX(0, "mout_spi1_isp", group1_p4x12, E4X12_SRC_ISP, 8, 4),
- MUX(0, "mout_uart_isp", group1_p4x12, E4X12_SRC_ISP, 12, 4),
+ MUX(0, "mout_clkout_top", clkout_top_p4x12, CLKOUT_CMU_TOP, 0, 5),
+
MUX(0, "mout_c2c", sclk_ampll_p4210, SRC_DMC, 0, 1),
MUX(0, "mout_pwi", mout_pwi_p4x12, SRC_DMC, 16, 4),
MUX(0, "mout_g2d0", sclk_ampll_p4210, SRC_DMC, 20, 1),
MUX(0, "mout_g2d1", sclk_evpll_p, SRC_DMC, 24, 1),
MUX(0, "mout_g2d", mout_g2d_p, SRC_DMC, 28, 1),
+ MUX(0, "mout_clkout_dmc", clkout_dmc_p4x12, CLKOUT_CMU_DMC, 0, 5),
};
/* list of divider clocks supported in all exynos4 soc's */
static struct samsung_div_clock exynos4_div_clks[] __initdata = {
DIV(0, "div_gdl", "mout_gdl", DIV_LEFTBUS, 0, 3),
DIV(0, "div_gpl", "div_gdl", DIV_LEFTBUS, 4, 3),
+ DIV(0, "div_clkout_leftbus", "mout_clkout_leftbus",
+ CLKOUT_CMU_LEFTBUS, 8, 6),
DIV(0, "div_gdr", "mout_gdr", DIV_RIGHTBUS, 0, 3),
DIV(0, "div_gpr", "div_gdr", DIV_RIGHTBUS, 4, 3),
+ DIV(0, "div_clkout_rightbus", "mout_clkout_rightbus",
+ CLKOUT_CMU_RIGHTBUS, 8, 6),
DIV(0, "div_core", "mout_core", DIV_CPU0, 0, 3),
DIV(0, "div_corem0", "div_core2", DIV_CPU0, 4, 3),
@@ -614,6 +699,8 @@ static struct samsung_div_clock exynos4_div_clks[] __initdata = {
DIV(0, "div_core2", "div_core", DIV_CPU0, 28, 3),
DIV(0, "div_copy", "mout_hpm", DIV_CPU1, 0, 3),
DIV(0, "div_hpm", "div_copy", DIV_CPU1, 4, 3),
+ DIV(0, "div_clkout_cpu", "mout_clkout_cpu", CLKOUT_CMU_CPU, 8, 6),
+
DIV(0, "div_fimc0", "mout_fimc0", DIV_CAM, 0, 4),
DIV(0, "div_fimc1", "mout_fimc1", DIV_CAM, 4, 4),
DIV(0, "div_fimc2", "mout_fimc2", DIV_CAM, 8, 4),
@@ -671,6 +758,7 @@ static struct samsung_div_clock exynos4_div_clks[] __initdata = {
CLK_SET_RATE_PARENT, 0),
DIV_F(0, "div_mmc_pre3", "div_mmc3", DIV_FSYS2, 24, 8,
CLK_SET_RATE_PARENT, 0),
+ DIV(0, "div_clkout_top", "mout_clkout_top", CLKOUT_CMU_TOP, 8, 6),
DIV(0, "div_acp", "mout_dmc_bus", DIV_DMC0, 0, 3),
DIV(0, "div_acp_pclk", "div_acp", DIV_DMC0, 4, 3),
@@ -679,6 +767,7 @@ static struct samsung_div_clock exynos4_div_clks[] __initdata = {
DIV(0, "div_dmcd", "div_dmc", DIV_DMC0, 16, 3),
DIV(0, "div_dmcp", "div_dmcd", DIV_DMC0, 20, 3),
DIV(0, "div_pwi", "mout_pwi", DIV_DMC1, 8, 4),
+ DIV(0, "div_clkout_dmc", "mout_clkout_dmc", CLKOUT_CMU_DMC, 8, 6),
};
/* list of divider clocks supported in exynos4210 soc */
@@ -902,6 +991,17 @@ static struct samsung_gate_clock exynos4_gate_clks[] __initdata = {
0, 0),
GATE(CLK_AC97, "ac97", "aclk100", GATE_IP_PERIL, 27,
0, 0),
+
+ GATE(CLK_OUT_LEFTBUS, "clkout_leftbus", "div_clkout_leftbus",
+ CLKOUT_CMU_LEFTBUS, 16, CLK_SET_RATE_PARENT, 0),
+ GATE(CLK_OUT_RIGHTBUS, "clkout_rightbus", "div_clkout_rightbus",
+ CLKOUT_CMU_RIGHTBUS, 16, CLK_SET_RATE_PARENT, 0),
+ GATE(CLK_OUT_TOP, "clkout_top", "div_clkout_top",
+ CLKOUT_CMU_TOP, 16, CLK_SET_RATE_PARENT, 0),
+ GATE(CLK_OUT_DMC, "clkout_dmc", "div_clkout_dmc",
+ CLKOUT_CMU_DMC, 16, CLK_SET_RATE_PARENT, 0),
+ GATE(CLK_OUT_CPU, "clkout_cpu", "div_clkout_cpu",
+ CLKOUT_CMU_CPU, 16, CLK_SET_RATE_PARENT, 0),
};
/* list of gate clocks supported in exynos4210 soc */
@@ -1282,6 +1382,8 @@ static void __init exynos4_clk_init(struct device_node *np,
ARRAY_SIZE(exynos4_div_clks));
samsung_clk_register_gate(ctx, exynos4_gate_clks,
ARRAY_SIZE(exynos4_gate_clks));
+ samsung_clk_register_fixed_factor(ctx, exynos4_fixed_factor_clks,
+ ARRAY_SIZE(exynos4_fixed_factor_clks));
if (exynos4_soc == EXYNOS4210) {
samsung_clk_register_fixed_rate(ctx, exynos4210_fixed_rate_clks,
@@ -1294,6 +1396,9 @@ static void __init exynos4_clk_init(struct device_node *np,
ARRAY_SIZE(exynos4210_gate_clks));
samsung_clk_register_alias(ctx, exynos4210_aliases,
ARRAY_SIZE(exynos4210_aliases));
+ samsung_clk_register_fixed_factor(ctx,
+ exynos4210_fixed_factor_clks,
+ ARRAY_SIZE(exynos4210_fixed_factor_clks));
} else {
samsung_clk_register_mux(ctx, exynos4x12_mux_clks,
ARRAY_SIZE(exynos4x12_mux_clks));
@@ -1303,6 +1408,9 @@ static void __init exynos4_clk_init(struct device_node *np,
ARRAY_SIZE(exynos4x12_gate_clks));
samsung_clk_register_alias(ctx, exynos4x12_aliases,
ARRAY_SIZE(exynos4x12_aliases));
+ samsung_clk_register_fixed_factor(ctx,
+ exynos4x12_fixed_factor_clks,
+ ARRAY_SIZE(exynos4x12_fixed_factor_clks));
}
samsung_clk_register_alias(ctx, exynos4_aliases,
diff --git a/include/dt-bindings/clock/exynos4.h b/include/dt-bindings/clock/exynos4.h
index 1106ca5..e0c4673 100644
--- a/include/dt-bindings/clock/exynos4.h
+++ b/include/dt-bindings/clock/exynos4.h
@@ -34,6 +34,11 @@
#define CLK_MOUT_CORE 19
#define CLK_MOUT_APLL 20
#define CLK_SCLK_HDMIPHY 22
+#define CLK_OUT_DMC 23
+#define CLK_OUT_TOP 24
+#define CLK_OUT_LEFTBUS 25
+#define CLK_OUT_RIGHTBUS 26
+#define CLK_OUT_CPU 27
/* gate for special clocks (sclk) */
#define CLK_SCLK_FIMC0 128
--
1.9.3
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