2020-02-25 07:56:33

by Peng Fan

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Subject: [PATCH 1/3] clk: imx: imx8mp: fix pll mux bit

From: Peng Fan <[email protected]>

Same to i.MX8MN/i.MX8MM, pll BYPASS bit should be kept inside pll
driver for glitchless freq setting following spec. If exposing the
bit, that means pll driver and clk driver has two paths to touch
this bit, which is wrong.

So use EXT_BYPASS bit here.

Signed-off-by: Peng Fan <[email protected]>
---
drivers/clk/imx/clk-imx8mp.c | 20 ++++++++++----------
1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/drivers/clk/imx/clk-imx8mp.c b/drivers/clk/imx/clk-imx8mp.c
index 7d558d6334eb..a85039cfdbf1 100644
--- a/drivers/clk/imx/clk-imx8mp.c
+++ b/drivers/clk/imx/clk-imx8mp.c
@@ -486,16 +486,16 @@ static int imx8mp_clocks_probe(struct platform_device *pdev)
hws[IMX8MP_SYS_PLL2] = imx_clk_hw_pll14xx("sys_pll2", "sys_pll2_ref_sel", anatop_base + 0x104, &imx_1416x_pll);
hws[IMX8MP_SYS_PLL3] = imx_clk_hw_pll14xx("sys_pll3", "sys_pll3_ref_sel", anatop_base + 0x114, &imx_1416x_pll);

- hws[IMX8MP_AUDIO_PLL1_BYPASS] = imx_clk_hw_mux_flags("audio_pll1_bypass", anatop_base, 4, 1, audio_pll1_bypass_sels, ARRAY_SIZE(audio_pll1_bypass_sels), CLK_SET_RATE_PARENT);
- hws[IMX8MP_AUDIO_PLL2_BYPASS] = imx_clk_hw_mux_flags("audio_pll2_bypass", anatop_base + 0x14, 4, 1, audio_pll2_bypass_sels, ARRAY_SIZE(audio_pll2_bypass_sels), CLK_SET_RATE_PARENT);
- hws[IMX8MP_VIDEO_PLL1_BYPASS] = imx_clk_hw_mux_flags("video_pll1_bypass", anatop_base + 0x28, 4, 1, video_pll1_bypass_sels, ARRAY_SIZE(video_pll1_bypass_sels), CLK_SET_RATE_PARENT);
- hws[IMX8MP_DRAM_PLL_BYPASS] = imx_clk_hw_mux_flags("dram_pll_bypass", anatop_base + 0x50, 4, 1, dram_pll_bypass_sels, ARRAY_SIZE(dram_pll_bypass_sels), CLK_SET_RATE_PARENT);
- hws[IMX8MP_GPU_PLL_BYPASS] = imx_clk_hw_mux_flags("gpu_pll_bypass", anatop_base + 0x64, 4, 1, gpu_pll_bypass_sels, ARRAY_SIZE(gpu_pll_bypass_sels), CLK_SET_RATE_PARENT);
- hws[IMX8MP_VPU_PLL_BYPASS] = imx_clk_hw_mux_flags("vpu_pll_bypass", anatop_base + 0x74, 4, 1, vpu_pll_bypass_sels, ARRAY_SIZE(vpu_pll_bypass_sels), CLK_SET_RATE_PARENT);
- hws[IMX8MP_ARM_PLL_BYPASS] = imx_clk_hw_mux_flags("arm_pll_bypass", anatop_base + 0x84, 4, 1, arm_pll_bypass_sels, ARRAY_SIZE(arm_pll_bypass_sels), CLK_SET_RATE_PARENT);
- hws[IMX8MP_SYS_PLL1_BYPASS] = imx_clk_hw_mux_flags("sys_pll1_bypass", anatop_base + 0x94, 4, 1, sys_pll1_bypass_sels, ARRAY_SIZE(sys_pll1_bypass_sels), CLK_SET_RATE_PARENT);
- hws[IMX8MP_SYS_PLL2_BYPASS] = imx_clk_hw_mux_flags("sys_pll2_bypass", anatop_base + 0x104, 4, 1, sys_pll2_bypass_sels, ARRAY_SIZE(sys_pll2_bypass_sels), CLK_SET_RATE_PARENT);
- hws[IMX8MP_SYS_PLL3_BYPASS] = imx_clk_hw_mux_flags("sys_pll3_bypass", anatop_base + 0x114, 4, 1, sys_pll3_bypass_sels, ARRAY_SIZE(sys_pll3_bypass_sels), CLK_SET_RATE_PARENT);
+ hws[IMX8MP_AUDIO_PLL1_BYPASS] = imx_clk_hw_mux_flags("audio_pll1_bypass", anatop_base, 16, 1, audio_pll1_bypass_sels, ARRAY_SIZE(audio_pll1_bypass_sels), CLK_SET_RATE_PARENT);
+ hws[IMX8MP_AUDIO_PLL2_BYPASS] = imx_clk_hw_mux_flags("audio_pll2_bypass", anatop_base + 0x14, 16, 1, audio_pll2_bypass_sels, ARRAY_SIZE(audio_pll2_bypass_sels), CLK_SET_RATE_PARENT);
+ hws[IMX8MP_VIDEO_PLL1_BYPASS] = imx_clk_hw_mux_flags("video_pll1_bypass", anatop_base + 0x28, 16, 1, video_pll1_bypass_sels, ARRAY_SIZE(video_pll1_bypass_sels), CLK_SET_RATE_PARENT);
+ hws[IMX8MP_DRAM_PLL_BYPASS] = imx_clk_hw_mux_flags("dram_pll_bypass", anatop_base + 0x50, 16, 1, dram_pll_bypass_sels, ARRAY_SIZE(dram_pll_bypass_sels), CLK_SET_RATE_PARENT);
+ hws[IMX8MP_GPU_PLL_BYPASS] = imx_clk_hw_mux_flags("gpu_pll_bypass", anatop_base + 0x64, 28, 1, gpu_pll_bypass_sels, ARRAY_SIZE(gpu_pll_bypass_sels), CLK_SET_RATE_PARENT);
+ hws[IMX8MP_VPU_PLL_BYPASS] = imx_clk_hw_mux_flags("vpu_pll_bypass", anatop_base + 0x74, 28, 1, vpu_pll_bypass_sels, ARRAY_SIZE(vpu_pll_bypass_sels), CLK_SET_RATE_PARENT);
+ hws[IMX8MP_ARM_PLL_BYPASS] = imx_clk_hw_mux_flags("arm_pll_bypass", anatop_base + 0x84, 28, 1, arm_pll_bypass_sels, ARRAY_SIZE(arm_pll_bypass_sels), CLK_SET_RATE_PARENT);
+ hws[IMX8MP_SYS_PLL1_BYPASS] = imx_clk_hw_mux_flags("sys_pll1_bypass", anatop_base + 0x94, 28, 1, sys_pll1_bypass_sels, ARRAY_SIZE(sys_pll1_bypass_sels), CLK_SET_RATE_PARENT);
+ hws[IMX8MP_SYS_PLL2_BYPASS] = imx_clk_hw_mux_flags("sys_pll2_bypass", anatop_base + 0x104, 28, 1, sys_pll2_bypass_sels, ARRAY_SIZE(sys_pll2_bypass_sels), CLK_SET_RATE_PARENT);
+ hws[IMX8MP_SYS_PLL3_BYPASS] = imx_clk_hw_mux_flags("sys_pll3_bypass", anatop_base + 0x114, 28, 1, sys_pll3_bypass_sels, ARRAY_SIZE(sys_pll3_bypass_sels), CLK_SET_RATE_PARENT);

hws[IMX8MP_AUDIO_PLL1_OUT] = imx_clk_hw_gate("audio_pll1_out", "audio_pll1_bypass", anatop_base, 13);
hws[IMX8MP_AUDIO_PLL2_OUT] = imx_clk_hw_gate("audio_pll2_out", "audio_pll2_bypass", anatop_base + 0x14, 13);
--
2.16.4


2020-02-25 07:56:50

by Peng Fan

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Subject: [PATCH 2/3] clk: imx: imx8mp: mark sys_pll1/2 as fixed clock

From: Peng Fan <[email protected]>

Same to i.MX8MN/i.MX8MM, according Architecture definition guide,
SYS_PLL1 is fixed at 800MHz, SYS_PLL2 is fixed at 1000MHz, so
let's use imx_clk_fixed to register the clocks and drop code
that could change the rate.

Signed-off-by: Peng Fan <[email protected]>
---
drivers/clk/imx/clk-imx8mp.c | 14 ++++----------
1 file changed, 4 insertions(+), 10 deletions(-)

diff --git a/drivers/clk/imx/clk-imx8mp.c b/drivers/clk/imx/clk-imx8mp.c
index a85039cfdbf1..77b79f61aab5 100644
--- a/drivers/clk/imx/clk-imx8mp.c
+++ b/drivers/clk/imx/clk-imx8mp.c
@@ -26,8 +26,6 @@ static const char * const dram_pll_bypass_sels[] = {"dram_pll", "dram_pll_ref_se
static const char * const gpu_pll_bypass_sels[] = {"gpu_pll", "gpu_pll_ref_sel", };
static const char * const vpu_pll_bypass_sels[] = {"vpu_pll", "vpu_pll_ref_sel", };
static const char * const arm_pll_bypass_sels[] = {"arm_pll", "arm_pll_ref_sel", };
-static const char * const sys_pll1_bypass_sels[] = {"sys_pll1", "sys_pll1_ref_sel", };
-static const char * const sys_pll2_bypass_sels[] = {"sys_pll2", "sys_pll2_ref_sel", };
static const char * const sys_pll3_bypass_sels[] = {"sys_pll3", "sys_pll3_ref_sel", };

static const char * const imx8mp_a53_sels[] = {"osc_24m", "arm_pll_out", "sys_pll2_500m",
@@ -471,8 +469,6 @@ static int imx8mp_clocks_probe(struct platform_device *pdev)
hws[IMX8MP_GPU_PLL_REF_SEL] = imx_clk_hw_mux("gpu_pll_ref_sel", anatop_base + 0x64, 0, 2, pll_ref_sels, ARRAY_SIZE(pll_ref_sels));
hws[IMX8MP_VPU_PLL_REF_SEL] = imx_clk_hw_mux("vpu_pll_ref_sel", anatop_base + 0x74, 0, 2, pll_ref_sels, ARRAY_SIZE(pll_ref_sels));
hws[IMX8MP_ARM_PLL_REF_SEL] = imx_clk_hw_mux("arm_pll_ref_sel", anatop_base + 0x84, 0, 2, pll_ref_sels, ARRAY_SIZE(pll_ref_sels));
- hws[IMX8MP_SYS_PLL1_REF_SEL] = imx_clk_hw_mux("sys_pll1_ref_sel", anatop_base + 0x94, 0, 2, pll_ref_sels, ARRAY_SIZE(pll_ref_sels));
- hws[IMX8MP_SYS_PLL2_REF_SEL] = imx_clk_hw_mux("sys_pll2_ref_sel", anatop_base + 0x104, 0, 2, pll_ref_sels, ARRAY_SIZE(pll_ref_sels));
hws[IMX8MP_SYS_PLL3_REF_SEL] = imx_clk_hw_mux("sys_pll3_ref_sel", anatop_base + 0x114, 0, 2, pll_ref_sels, ARRAY_SIZE(pll_ref_sels));

hws[IMX8MP_AUDIO_PLL1] = imx_clk_hw_pll14xx("audio_pll1", "audio_pll1_ref_sel", anatop_base, &imx_1443x_pll);
@@ -482,8 +478,8 @@ static int imx8mp_clocks_probe(struct platform_device *pdev)
hws[IMX8MP_GPU_PLL] = imx_clk_hw_pll14xx("gpu_pll", "gpu_pll_ref_sel", anatop_base + 0x64, &imx_1416x_pll);
hws[IMX8MP_VPU_PLL] = imx_clk_hw_pll14xx("vpu_pll", "vpu_pll_ref_sel", anatop_base + 0x74, &imx_1416x_pll);
hws[IMX8MP_ARM_PLL] = imx_clk_hw_pll14xx("arm_pll", "arm_pll_ref_sel", anatop_base + 0x84, &imx_1416x_pll);
- hws[IMX8MP_SYS_PLL1] = imx_clk_hw_pll14xx("sys_pll1", "sys_pll1_ref_sel", anatop_base + 0x94, &imx_1416x_pll);
- hws[IMX8MP_SYS_PLL2] = imx_clk_hw_pll14xx("sys_pll2", "sys_pll2_ref_sel", anatop_base + 0x104, &imx_1416x_pll);
+ hws[IMX8MP_SYS_PLL1] = imx_clk_hw_fixed("sys_pll1", 800000000);
+ hws[IMX8MP_SYS_PLL2] = imx_clk_hw_fixed("sys_pll2", 1000000000);
hws[IMX8MP_SYS_PLL3] = imx_clk_hw_pll14xx("sys_pll3", "sys_pll3_ref_sel", anatop_base + 0x114, &imx_1416x_pll);

hws[IMX8MP_AUDIO_PLL1_BYPASS] = imx_clk_hw_mux_flags("audio_pll1_bypass", anatop_base, 16, 1, audio_pll1_bypass_sels, ARRAY_SIZE(audio_pll1_bypass_sels), CLK_SET_RATE_PARENT);
@@ -493,8 +489,6 @@ static int imx8mp_clocks_probe(struct platform_device *pdev)
hws[IMX8MP_GPU_PLL_BYPASS] = imx_clk_hw_mux_flags("gpu_pll_bypass", anatop_base + 0x64, 28, 1, gpu_pll_bypass_sels, ARRAY_SIZE(gpu_pll_bypass_sels), CLK_SET_RATE_PARENT);
hws[IMX8MP_VPU_PLL_BYPASS] = imx_clk_hw_mux_flags("vpu_pll_bypass", anatop_base + 0x74, 28, 1, vpu_pll_bypass_sels, ARRAY_SIZE(vpu_pll_bypass_sels), CLK_SET_RATE_PARENT);
hws[IMX8MP_ARM_PLL_BYPASS] = imx_clk_hw_mux_flags("arm_pll_bypass", anatop_base + 0x84, 28, 1, arm_pll_bypass_sels, ARRAY_SIZE(arm_pll_bypass_sels), CLK_SET_RATE_PARENT);
- hws[IMX8MP_SYS_PLL1_BYPASS] = imx_clk_hw_mux_flags("sys_pll1_bypass", anatop_base + 0x94, 28, 1, sys_pll1_bypass_sels, ARRAY_SIZE(sys_pll1_bypass_sels), CLK_SET_RATE_PARENT);
- hws[IMX8MP_SYS_PLL2_BYPASS] = imx_clk_hw_mux_flags("sys_pll2_bypass", anatop_base + 0x104, 28, 1, sys_pll2_bypass_sels, ARRAY_SIZE(sys_pll2_bypass_sels), CLK_SET_RATE_PARENT);
hws[IMX8MP_SYS_PLL3_BYPASS] = imx_clk_hw_mux_flags("sys_pll3_bypass", anatop_base + 0x114, 28, 1, sys_pll3_bypass_sels, ARRAY_SIZE(sys_pll3_bypass_sels), CLK_SET_RATE_PARENT);

hws[IMX8MP_AUDIO_PLL1_OUT] = imx_clk_hw_gate("audio_pll1_out", "audio_pll1_bypass", anatop_base, 13);
@@ -504,8 +498,8 @@ static int imx8mp_clocks_probe(struct platform_device *pdev)
hws[IMX8MP_GPU_PLL_OUT] = imx_clk_hw_gate("gpu_pll_out", "gpu_pll_bypass", anatop_base + 0x64, 11);
hws[IMX8MP_VPU_PLL_OUT] = imx_clk_hw_gate("vpu_pll_out", "vpu_pll_bypass", anatop_base + 0x74, 11);
hws[IMX8MP_ARM_PLL_OUT] = imx_clk_hw_gate("arm_pll_out", "arm_pll_bypass", anatop_base + 0x84, 11);
- hws[IMX8MP_SYS_PLL1_OUT] = imx_clk_hw_gate("sys_pll1_out", "sys_pll1_bypass", anatop_base + 0x94, 11);
- hws[IMX8MP_SYS_PLL2_OUT] = imx_clk_hw_gate("sys_pll2_out", "sys_pll2_bypass", anatop_base + 0x104, 11);
+ hws[IMX8MP_SYS_PLL1_OUT] = imx_clk_hw_gate("sys_pll1_out", "sys_pll1", anatop_base + 0x94, 11);
+ hws[IMX8MP_SYS_PLL2_OUT] = imx_clk_hw_gate("sys_pll2_out", "sys_pll2", anatop_base + 0x104, 11);
hws[IMX8MP_SYS_PLL3_OUT] = imx_clk_hw_gate("sys_pll3_out", "sys_pll3_bypass", anatop_base + 0x114, 11);

hws[IMX8MP_SYS_PLL1_40M] = imx_clk_hw_fixed_factor("sys_pll1_40m", "sys_pll1_out", 1, 20);
--
2.16.4

2020-02-25 07:58:01

by Peng Fan

[permalink] [raw]
Subject: [PATCH 3/3] clk: imx8mp: Define gates for pll1/2 fixed dividers

From: Peng Fan <[email protected]>

Inspried from
commit e8688fe8df7d ("clk: imx8mn: Define gates for pll1/2 fixed dividers")

On imx8mn there are 9 fixed-factor dividers for SYS_PLL1 and SYS_PLL2
each with their own gate. Only one of these gates (the one "dividing" by
one) is currently defined and it's incorrectly set as the parent of all
the fixed-factor dividers.

Add the other 8 gates to the clock tree between sys_pll1/2_bypass and
the fixed dividers.

Signed-off-by: Peng Fan <[email protected]>
---
drivers/clk/imx/clk-imx8mp.c | 54 +++++++++++++++++++++-----------
include/dt-bindings/clock/imx8mp-clock.h | 19 ++++++++++-
2 files changed, 54 insertions(+), 19 deletions(-)

diff --git a/drivers/clk/imx/clk-imx8mp.c b/drivers/clk/imx/clk-imx8mp.c
index 77b79f61aab5..99417b9b0ee7 100644
--- a/drivers/clk/imx/clk-imx8mp.c
+++ b/drivers/clk/imx/clk-imx8mp.c
@@ -498,28 +498,46 @@ static int imx8mp_clocks_probe(struct platform_device *pdev)
hws[IMX8MP_GPU_PLL_OUT] = imx_clk_hw_gate("gpu_pll_out", "gpu_pll_bypass", anatop_base + 0x64, 11);
hws[IMX8MP_VPU_PLL_OUT] = imx_clk_hw_gate("vpu_pll_out", "vpu_pll_bypass", anatop_base + 0x74, 11);
hws[IMX8MP_ARM_PLL_OUT] = imx_clk_hw_gate("arm_pll_out", "arm_pll_bypass", anatop_base + 0x84, 11);
- hws[IMX8MP_SYS_PLL1_OUT] = imx_clk_hw_gate("sys_pll1_out", "sys_pll1", anatop_base + 0x94, 11);
- hws[IMX8MP_SYS_PLL2_OUT] = imx_clk_hw_gate("sys_pll2_out", "sys_pll2", anatop_base + 0x104, 11);
hws[IMX8MP_SYS_PLL3_OUT] = imx_clk_hw_gate("sys_pll3_out", "sys_pll3_bypass", anatop_base + 0x114, 11);

- hws[IMX8MP_SYS_PLL1_40M] = imx_clk_hw_fixed_factor("sys_pll1_40m", "sys_pll1_out", 1, 20);
- hws[IMX8MP_SYS_PLL1_80M] = imx_clk_hw_fixed_factor("sys_pll1_80m", "sys_pll1_out", 1, 10);
- hws[IMX8MP_SYS_PLL1_100M] = imx_clk_hw_fixed_factor("sys_pll1_100m", "sys_pll1_out", 1, 8);
- hws[IMX8MP_SYS_PLL1_133M] = imx_clk_hw_fixed_factor("sys_pll1_133m", "sys_pll1_out", 1, 6);
- hws[IMX8MP_SYS_PLL1_160M] = imx_clk_hw_fixed_factor("sys_pll1_160m", "sys_pll1_out", 1, 5);
- hws[IMX8MP_SYS_PLL1_200M] = imx_clk_hw_fixed_factor("sys_pll1_200m", "sys_pll1_out", 1, 4);
- hws[IMX8MP_SYS_PLL1_266M] = imx_clk_hw_fixed_factor("sys_pll1_266m", "sys_pll1_out", 1, 3);
- hws[IMX8MP_SYS_PLL1_400M] = imx_clk_hw_fixed_factor("sys_pll1_400m", "sys_pll1_out", 1, 2);
+ hws[IMX8MP_SYS_PLL1_40M_CG] = imx_clk_hw_gate("sys_pll1_40m_cg", "sys_pll1", anatop_base + 0x94, 27);
+ hws[IMX8MP_SYS_PLL1_80M_CG] = imx_clk_hw_gate("sys_pll1_80m_cg", "sys_pll1", anatop_base + 0x94, 25);
+ hws[IMX8MP_SYS_PLL1_100M_CG] = imx_clk_hw_gate("sys_pll1_100m_cg", "sys_pll1", anatop_base + 0x94, 23);
+ hws[IMX8MP_SYS_PLL1_133M_CG] = imx_clk_hw_gate("sys_pll1_133m_cg", "sys_pll1", anatop_base + 0x94, 21);
+ hws[IMX8MP_SYS_PLL1_160M_CG] = imx_clk_hw_gate("sys_pll1_160m_cg", "sys_pll1", anatop_base + 0x94, 19);
+ hws[IMX8MP_SYS_PLL1_200M_CG] = imx_clk_hw_gate("sys_pll1_200m_cg", "sys_pll1", anatop_base + 0x94, 17);
+ hws[IMX8MP_SYS_PLL1_266M_CG] = imx_clk_hw_gate("sys_pll1_266m_cg", "sys_pll1", anatop_base + 0x94, 15);
+ hws[IMX8MP_SYS_PLL1_400M_CG] = imx_clk_hw_gate("sys_pll1_400m_cg", "sys_pll1", anatop_base + 0x94, 13);
+ hws[IMX8MP_SYS_PLL1_OUT] = imx_clk_hw_gate("sys_pll1_out", "sys_pll1", anatop_base + 0x94, 11);
+
+ hws[IMX8MP_SYS_PLL1_40M] = imx_clk_hw_fixed_factor("sys_pll1_40m", "sys_pll1_40m_cg", 1, 20);
+ hws[IMX8MP_SYS_PLL1_80M] = imx_clk_hw_fixed_factor("sys_pll1_80m", "sys_pll1_80m_cg", 1, 10);
+ hws[IMX8MP_SYS_PLL1_100M] = imx_clk_hw_fixed_factor("sys_pll1_100m", "sys_pll1_100m_cg", 1, 8);
+ hws[IMX8MP_SYS_PLL1_133M] = imx_clk_hw_fixed_factor("sys_pll1_133m", "sys_pll1_133m_cg", 1, 6);
+ hws[IMX8MP_SYS_PLL1_160M] = imx_clk_hw_fixed_factor("sys_pll1_160m", "sys_pll1_160m_cg", 1, 5);
+ hws[IMX8MP_SYS_PLL1_200M] = imx_clk_hw_fixed_factor("sys_pll1_200m", "sys_pll1_200m_cg", 1, 4);
+ hws[IMX8MP_SYS_PLL1_266M] = imx_clk_hw_fixed_factor("sys_pll1_266m", "sys_pll1_266m_cg", 1, 3);
+ hws[IMX8MP_SYS_PLL1_400M] = imx_clk_hw_fixed_factor("sys_pll1_400m", "sys_pll1_400m_cg", 1, 2);
hws[IMX8MP_SYS_PLL1_800M] = imx_clk_hw_fixed_factor("sys_pll1_800m", "sys_pll1_out", 1, 1);

- hws[IMX8MP_SYS_PLL2_50M] = imx_clk_hw_fixed_factor("sys_pll2_50m", "sys_pll2_out", 1, 20);
- hws[IMX8MP_SYS_PLL2_100M] = imx_clk_hw_fixed_factor("sys_pll2_100m", "sys_pll2_out", 1, 10);
- hws[IMX8MP_SYS_PLL2_125M] = imx_clk_hw_fixed_factor("sys_pll2_125m", "sys_pll2_out", 1, 8);
- hws[IMX8MP_SYS_PLL2_166M] = imx_clk_hw_fixed_factor("sys_pll2_166m", "sys_pll2_out", 1, 6);
- hws[IMX8MP_SYS_PLL2_200M] = imx_clk_hw_fixed_factor("sys_pll2_200m", "sys_pll2_out", 1, 5);
- hws[IMX8MP_SYS_PLL2_250M] = imx_clk_hw_fixed_factor("sys_pll2_250m", "sys_pll2_out", 1, 4);
- hws[IMX8MP_SYS_PLL2_333M] = imx_clk_hw_fixed_factor("sys_pll2_333m", "sys_pll2_out", 1, 3);
- hws[IMX8MP_SYS_PLL2_500M] = imx_clk_hw_fixed_factor("sys_pll2_500m", "sys_pll2_out", 1, 2);
+ hws[IMX8MP_SYS_PLL2_50M_CG] = imx_clk_hw_gate("sys_pll2_50m_cg", "sys_pll2", anatop_base + 0x104, 27);
+ hws[IMX8MP_SYS_PLL2_100M_CG] = imx_clk_hw_gate("sys_pll2_100m_cg", "sys_pll2", anatop_base + 0x104, 25);
+ hws[IMX8MP_SYS_PLL2_125M_CG] = imx_clk_hw_gate("sys_pll2_125m_cg", "sys_pll2", anatop_base + 0x104, 23);
+ hws[IMX8MP_SYS_PLL2_166M_CG] = imx_clk_hw_gate("sys_pll2_166m_cg", "sys_pll2", anatop_base + 0x104, 21);
+ hws[IMX8MP_SYS_PLL2_200M_CG] = imx_clk_hw_gate("sys_pll2_200m_cg", "sys_pll2", anatop_base + 0x104, 19);
+ hws[IMX8MP_SYS_PLL2_250M_CG] = imx_clk_hw_gate("sys_pll2_250m_cg", "sys_pll2", anatop_base + 0x104, 17);
+ hws[IMX8MP_SYS_PLL2_333M_CG] = imx_clk_hw_gate("sys_pll2_333m_cg", "sys_pll2", anatop_base + 0x104, 15);
+ hws[IMX8MP_SYS_PLL2_500M_CG] = imx_clk_hw_gate("sys_pll2_500m_cg", "sys_pll2", anatop_base + 0x104, 13);
+ hws[IMX8MP_SYS_PLL2_OUT] = imx_clk_hw_gate("sys_pll2_out", "sys_pll2", anatop_base + 0x104, 11);
+
+ hws[IMX8MP_SYS_PLL2_50M] = imx_clk_hw_fixed_factor("sys_pll2_50m", "sys_pll2_50m_cg", 1, 20);
+ hws[IMX8MP_SYS_PLL2_100M] = imx_clk_hw_fixed_factor("sys_pll2_100m", "sys_pll2_100m_cg", 1, 10);
+ hws[IMX8MP_SYS_PLL2_125M] = imx_clk_hw_fixed_factor("sys_pll2_125m", "sys_pll2_125m_cg", 1, 8);
+ hws[IMX8MP_SYS_PLL2_166M] = imx_clk_hw_fixed_factor("sys_pll2_166m", "sys_pll2_166m_cg", 1, 6);
+ hws[IMX8MP_SYS_PLL2_200M] = imx_clk_hw_fixed_factor("sys_pll2_200m", "sys_pll2_200m_cg", 1, 5);
+ hws[IMX8MP_SYS_PLL2_250M] = imx_clk_hw_fixed_factor("sys_pll2_250m", "sys_pll2_250m_cg", 1, 4);
+ hws[IMX8MP_SYS_PLL2_333M] = imx_clk_hw_fixed_factor("sys_pll2_333m", "sys_pll2_333m_cg", 1, 3);
+ hws[IMX8MP_SYS_PLL2_500M] = imx_clk_hw_fixed_factor("sys_pll2_500m", "sys_pll2_500m_cg", 1, 2);
hws[IMX8MP_SYS_PLL2_1000M] = imx_clk_hw_fixed_factor("sys_pll2_1000m", "sys_pll2_out", 1, 1);

hws[IMX8MP_CLK_A53_SRC] = imx_clk_hw_mux2("arm_a53_src", ccm_base + 0x8000, 24, 3, imx8mp_a53_sels, ARRAY_SIZE(imx8mp_a53_sels));
diff --git a/include/dt-bindings/clock/imx8mp-clock.h b/include/dt-bindings/clock/imx8mp-clock.h
index 47ab082238b4..46c69cd66c62 100644
--- a/include/dt-bindings/clock/imx8mp-clock.h
+++ b/include/dt-bindings/clock/imx8mp-clock.h
@@ -296,6 +296,23 @@
#define IMX8MP_CLK_ARM 287
#define IMX8MP_CLK_A53_CORE 288

-#define IMX8MP_CLK_END 289
+#define IMX8MP_SYS_PLL1_40M_CG 289
+#define IMX8MP_SYS_PLL1_80M_CG 290
+#define IMX8MP_SYS_PLL1_100M_CG 291
+#define IMX8MP_SYS_PLL1_133M_CG 292
+#define IMX8MP_SYS_PLL1_160M_CG 293
+#define IMX8MP_SYS_PLL1_200M_CG 294
+#define IMX8MP_SYS_PLL1_266M_CG 295
+#define IMX8MP_SYS_PLL1_400M_CG 296
+#define IMX8MP_SYS_PLL2_50M_CG 297
+#define IMX8MP_SYS_PLL2_100M_CG 298
+#define IMX8MP_SYS_PLL2_125M_CG 299
+#define IMX8MP_SYS_PLL2_166M_CG 300
+#define IMX8MP_SYS_PLL2_200M_CG 301
+#define IMX8MP_SYS_PLL2_250M_CG 302
+#define IMX8MP_SYS_PLL2_333M_CG 303
+#define IMX8MP_SYS_PLL2_500M_CG 304
+
+#define IMX8MP_CLK_END 305

#endif
--
2.16.4

2020-02-25 08:28:23

by Jacky Bai

[permalink] [raw]
Subject: RE: [PATCH 2/3] clk: imx: imx8mp: mark sys_pll1/2 as fixed clock

> -----Original Message-----
> From: Peng Fan <[email protected]>
> Sent: Tuesday, February 25, 2020 3:49 PM
> To: [email protected]; [email protected]; [email protected];
> [email protected]; Abel Vesa <[email protected]>
> Cc: [email protected]; dl-linux-imx <[email protected]>; Anson Huang
> <[email protected]>; [email protected];
> [email protected]; [email protected];
> [email protected]; Leonard Crestez <[email protected]>;
> Peng Fan <[email protected]>
> Subject: [PATCH 2/3] clk: imx: imx8mp: mark sys_pll1/2 as fixed clock
>
> From: Peng Fan <[email protected]>
>
> Same to i.MX8MN/i.MX8MM, according Architecture definition guide,
> SYS_PLL1 is fixed at 800MHz, SYS_PLL2 is fixed at 1000MHz, so let's use
> imx_clk_fixed to register the clocks and drop code that could change the rate.
>

Better to keep it as PLL for now, we may have the situation that need to power down the PLL in some case.

BR
Jacky Bai
> Signed-off-by: Peng Fan <[email protected]>
> ---
> drivers/clk/imx/clk-imx8mp.c | 14 ++++----------
> 1 file changed, 4 insertions(+), 10 deletions(-)
>
> diff --git a/drivers/clk/imx/clk-imx8mp.c b/drivers/clk/imx/clk-imx8mp.c
> index a85039cfdbf1..77b79f61aab5 100644
> --- a/drivers/clk/imx/clk-imx8mp.c
> +++ b/drivers/clk/imx/clk-imx8mp.c
> @@ -26,8 +26,6 @@ static const char * const dram_pll_bypass_sels[] =
> {"dram_pll", "dram_pll_ref_se static const char * const
> gpu_pll_bypass_sels[] = {"gpu_pll", "gpu_pll_ref_sel", }; static const char *
> const vpu_pll_bypass_sels[] = {"vpu_pll", "vpu_pll_ref_sel", }; static const
> char * const arm_pll_bypass_sels[] = {"arm_pll", "arm_pll_ref_sel", }; -static
> const char * const sys_pll1_bypass_sels[] = {"sys_pll1", "sys_pll1_ref_sel", };
> -static const char * const sys_pll2_bypass_sels[] = {"sys_pll2",
> "sys_pll2_ref_sel", }; static const char * const sys_pll3_bypass_sels[] =
> {"sys_pll3", "sys_pll3_ref_sel", };
>
> static const char * const imx8mp_a53_sels[] = {"osc_24m", "arm_pll_out",
> "sys_pll2_500m", @@ -471,8 +469,6 @@ static int
> imx8mp_clocks_probe(struct platform_device *pdev)
> hws[IMX8MP_GPU_PLL_REF_SEL] = imx_clk_hw_mux("gpu_pll_ref_sel",
> anatop_base + 0x64, 0, 2, pll_ref_sels, ARRAY_SIZE(pll_ref_sels));
> hws[IMX8MP_VPU_PLL_REF_SEL] = imx_clk_hw_mux("vpu_pll_ref_sel",
> anatop_base + 0x74, 0, 2, pll_ref_sels, ARRAY_SIZE(pll_ref_sels));
> hws[IMX8MP_ARM_PLL_REF_SEL] = imx_clk_hw_mux("arm_pll_ref_sel",
> anatop_base + 0x84, 0, 2, pll_ref_sels, ARRAY_SIZE(pll_ref_sels));
> - hws[IMX8MP_SYS_PLL1_REF_SEL] =
> imx_clk_hw_mux("sys_pll1_ref_sel", anatop_base + 0x94, 0, 2, pll_ref_sels,
> ARRAY_SIZE(pll_ref_sels));
> - hws[IMX8MP_SYS_PLL2_REF_SEL] =
> imx_clk_hw_mux("sys_pll2_ref_sel", anatop_base + 0x104, 0, 2, pll_ref_sels,
> ARRAY_SIZE(pll_ref_sels));
> hws[IMX8MP_SYS_PLL3_REF_SEL] =
> imx_clk_hw_mux("sys_pll3_ref_sel", anatop_base + 0x114, 0, 2, pll_ref_sels,
> ARRAY_SIZE(pll_ref_sels));
>
> hws[IMX8MP_AUDIO_PLL1] = imx_clk_hw_pll14xx("audio_pll1",
> "audio_pll1_ref_sel", anatop_base, &imx_1443x_pll); @@ -482,8 +478,8 @@
> static int imx8mp_clocks_probe(struct platform_device *pdev)
> hws[IMX8MP_GPU_PLL] = imx_clk_hw_pll14xx("gpu_pll",
> "gpu_pll_ref_sel", anatop_base + 0x64, &imx_1416x_pll);
> hws[IMX8MP_VPU_PLL] = imx_clk_hw_pll14xx("vpu_pll",
> "vpu_pll_ref_sel", anatop_base + 0x74, &imx_1416x_pll);
> hws[IMX8MP_ARM_PLL] = imx_clk_hw_pll14xx("arm_pll",
> "arm_pll_ref_sel", anatop_base + 0x84, &imx_1416x_pll);
> - hws[IMX8MP_SYS_PLL1] = imx_clk_hw_pll14xx("sys_pll1",
> "sys_pll1_ref_sel", anatop_base + 0x94, &imx_1416x_pll);
> - hws[IMX8MP_SYS_PLL2] = imx_clk_hw_pll14xx("sys_pll2",
> "sys_pll2_ref_sel", anatop_base + 0x104, &imx_1416x_pll);
> + hws[IMX8MP_SYS_PLL1] = imx_clk_hw_fixed("sys_pll1", 800000000);
> + hws[IMX8MP_SYS_PLL2] = imx_clk_hw_fixed("sys_pll2", 1000000000);
> hws[IMX8MP_SYS_PLL3] = imx_clk_hw_pll14xx("sys_pll3",
> "sys_pll3_ref_sel", anatop_base + 0x114, &imx_1416x_pll);
>
> hws[IMX8MP_AUDIO_PLL1_BYPASS] =
> imx_clk_hw_mux_flags("audio_pll1_bypass", anatop_base, 16, 1,
> audio_pll1_bypass_sels, ARRAY_SIZE(audio_pll1_bypass_sels),
> CLK_SET_RATE_PARENT); @@ -493,8 +489,6 @@ static int
> imx8mp_clocks_probe(struct platform_device *pdev)
> hws[IMX8MP_GPU_PLL_BYPASS] =
> imx_clk_hw_mux_flags("gpu_pll_bypass", anatop_base + 0x64, 28, 1,
> gpu_pll_bypass_sels, ARRAY_SIZE(gpu_pll_bypass_sels),
> CLK_SET_RATE_PARENT);
> hws[IMX8MP_VPU_PLL_BYPASS] =
> imx_clk_hw_mux_flags("vpu_pll_bypass", anatop_base + 0x74, 28, 1,
> vpu_pll_bypass_sels, ARRAY_SIZE(vpu_pll_bypass_sels),
> CLK_SET_RATE_PARENT);
> hws[IMX8MP_ARM_PLL_BYPASS] =
> imx_clk_hw_mux_flags("arm_pll_bypass", anatop_base + 0x84, 28, 1,
> arm_pll_bypass_sels, ARRAY_SIZE(arm_pll_bypass_sels),
> CLK_SET_RATE_PARENT);
> - hws[IMX8MP_SYS_PLL1_BYPASS] =
> imx_clk_hw_mux_flags("sys_pll1_bypass", anatop_base + 0x94, 28, 1,
> sys_pll1_bypass_sels, ARRAY_SIZE(sys_pll1_bypass_sels),
> CLK_SET_RATE_PARENT);
> - hws[IMX8MP_SYS_PLL2_BYPASS] =
> imx_clk_hw_mux_flags("sys_pll2_bypass", anatop_base + 0x104, 28, 1,
> sys_pll2_bypass_sels, ARRAY_SIZE(sys_pll2_bypass_sels),
> CLK_SET_RATE_PARENT);
> hws[IMX8MP_SYS_PLL3_BYPASS] =
> imx_clk_hw_mux_flags("sys_pll3_bypass", anatop_base + 0x114, 28, 1,
> sys_pll3_bypass_sels, ARRAY_SIZE(sys_pll3_bypass_sels),
> CLK_SET_RATE_PARENT);
>
> hws[IMX8MP_AUDIO_PLL1_OUT] = imx_clk_hw_gate("audio_pll1_out",
> "audio_pll1_bypass", anatop_base, 13); @@ -504,8 +498,8 @@ static int
> imx8mp_clocks_probe(struct platform_device *pdev)
> hws[IMX8MP_GPU_PLL_OUT] = imx_clk_hw_gate("gpu_pll_out",
> "gpu_pll_bypass", anatop_base + 0x64, 11);
> hws[IMX8MP_VPU_PLL_OUT] = imx_clk_hw_gate("vpu_pll_out",
> "vpu_pll_bypass", anatop_base + 0x74, 11);
> hws[IMX8MP_ARM_PLL_OUT] = imx_clk_hw_gate("arm_pll_out",
> "arm_pll_bypass", anatop_base + 0x84, 11);
> - hws[IMX8MP_SYS_PLL1_OUT] = imx_clk_hw_gate("sys_pll1_out",
> "sys_pll1_bypass", anatop_base + 0x94, 11);
> - hws[IMX8MP_SYS_PLL2_OUT] = imx_clk_hw_gate("sys_pll2_out",
> "sys_pll2_bypass", anatop_base + 0x104, 11);
> + hws[IMX8MP_SYS_PLL1_OUT] = imx_clk_hw_gate("sys_pll1_out",
> "sys_pll1", anatop_base + 0x94, 11);
> + hws[IMX8MP_SYS_PLL2_OUT] = imx_clk_hw_gate("sys_pll2_out",
> "sys_pll2",
> +anatop_base + 0x104, 11);
> hws[IMX8MP_SYS_PLL3_OUT] = imx_clk_hw_gate("sys_pll3_out",
> "sys_pll3_bypass", anatop_base + 0x114, 11);
>
> hws[IMX8MP_SYS_PLL1_40M] =
> imx_clk_hw_fixed_factor("sys_pll1_40m", "sys_pll1_out", 1, 20);
> --
> 2.16.4