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authorStephen Boyd <sboyd@kernel.org>2018-10-01 10:32:32 -0700
committerStephen Boyd <sboyd@kernel.org>2018-10-01 10:32:32 -0700
commit148edd50c80792f40f97e585ff5af8babfb7634a (patch)
treee55c2bd8b453fc2abd1c6af5b57fc01979c664c8
parent5b394b2ddf0347bef56e50c69a58773c94343ff3 (diff)
parent93c873d686461652921fe18b137ac28002dfe166 (diff)
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linux-148edd50c80792f40f97e585ff5af8babfb7634a.zip
Merge tag 'meson-clk-4.20-1' of https://github.com/BayLibre/clk-meson into clk-meson
Pull meson clk driver updates from Jerome Brunet: - clk-pll driver improvements and updates - add axg audio controller system clocks - drop mpll3 from the possible pcie clock parent of the axg - register meson8b clock controller early * tag 'meson-clk-4.20-1' of https://github.com/BayLibre/clk-meson: clk: meson: meson8b: use the regmap in the internal reset controller clk: meson: meson8b: register the clock controller early clk: meson-axg: pcie: drop the mpll3 clock parent clk: meson: axg: round audio system master clocks down clk: meson: clk-pll: drop hard-coded rates from pll tables clk: meson: clk-pll: remove od parameters clk: meson: clk-pll: drop CLK_GET_RATE_NOCACHE where unnecessary clk: meson: clk-pll: add enable bit
-rw-r--r--drivers/clk/meson/axg-audio.c34
-rw-r--r--drivers/clk/meson/axg.c332
-rw-r--r--drivers/clk/meson/axg.h8
-rw-r--r--drivers/clk/meson/clk-pll.c156
-rw-r--r--drivers/clk/meson/clkc.h16
-rw-r--r--drivers/clk/meson/gxbb.c518
-rw-r--r--drivers/clk/meson/gxbb.h10
-rw-r--r--drivers/clk/meson/meson8b.c280
-rw-r--r--drivers/clk/meson/meson8b.h5
9 files changed, 732 insertions, 627 deletions
diff --git a/drivers/clk/meson/axg-audio.c b/drivers/clk/meson/axg-audio.c
index a0ed41e73bde..5f6c860aa122 100644
--- a/drivers/clk/meson/axg-audio.c
+++ b/drivers/clk/meson/axg-audio.c
@@ -101,10 +101,16 @@ static const char * const mst_mux_parent_names[] = {
"axg_mst_in4", "axg_mst_in5", "axg_mst_in6", "axg_mst_in7",
};
-#define AXG_MST_MCLK_MUX(_name, _reg) \
- AXG_AUD_MUX(_name##_sel, _reg, 0x7, 24, CLK_MUX_ROUND_CLOSEST, \
+#define AXG_MST_MUX(_name, _reg, _flag) \
+ AXG_AUD_MUX(_name##_sel, _reg, 0x7, 24, _flag, \
mst_mux_parent_names, CLK_SET_RATE_PARENT)
+#define AXG_MST_MCLK_MUX(_name, _reg) \
+ AXG_MST_MUX(_name, _reg, CLK_MUX_ROUND_CLOSEST)
+
+#define AXG_MST_SYS_MUX(_name, _reg) \
+ AXG_MST_MUX(_name, _reg, 0)
+
static AXG_MST_MCLK_MUX(mst_a_mclk, AUDIO_MCLK_A_CTRL);
static AXG_MST_MCLK_MUX(mst_b_mclk, AUDIO_MCLK_B_CTRL);
static AXG_MST_MCLK_MUX(mst_c_mclk, AUDIO_MCLK_C_CTRL);
@@ -112,13 +118,19 @@ static AXG_MST_MCLK_MUX(mst_d_mclk, AUDIO_MCLK_D_CTRL);
static AXG_MST_MCLK_MUX(mst_e_mclk, AUDIO_MCLK_E_CTRL);
static AXG_MST_MCLK_MUX(mst_f_mclk, AUDIO_MCLK_F_CTRL);
static AXG_MST_MCLK_MUX(spdifout_clk, AUDIO_CLK_SPDIFOUT_CTRL);
-static AXG_MST_MCLK_MUX(spdifin_clk, AUDIO_CLK_SPDIFIN_CTRL);
static AXG_MST_MCLK_MUX(pdm_dclk, AUDIO_CLK_PDMIN_CTRL0);
-static AXG_MST_MCLK_MUX(pdm_sysclk, AUDIO_CLK_PDMIN_CTRL1);
+static AXG_MST_SYS_MUX(spdifin_clk, AUDIO_CLK_SPDIFIN_CTRL);
+static AXG_MST_SYS_MUX(pdm_sysclk, AUDIO_CLK_PDMIN_CTRL1);
+
+#define AXG_MST_DIV(_name, _reg, _flag) \
+ AXG_AUD_DIV(_name##_div, _reg, 0, 16, _flag, \
+ "axg_"#_name"_sel", CLK_SET_RATE_PARENT) \
+
+#define AXG_MST_MCLK_DIV(_name, _reg) \
+ AXG_MST_DIV(_name, _reg, CLK_DIVIDER_ROUND_CLOSEST)
-#define AXG_MST_MCLK_DIV(_name, _reg) \
- AXG_AUD_DIV(_name##_div, _reg, 0, 16, CLK_DIVIDER_ROUND_CLOSEST, \
- "axg_"#_name"_sel", CLK_SET_RATE_PARENT) \
+#define AXG_MST_SYS_DIV(_name, _reg) \
+ AXG_MST_DIV(_name, _reg, 0)
static AXG_MST_MCLK_DIV(mst_a_mclk, AUDIO_MCLK_A_CTRL);
static AXG_MST_MCLK_DIV(mst_b_mclk, AUDIO_MCLK_B_CTRL);
@@ -127,12 +139,12 @@ static AXG_MST_MCLK_DIV(mst_d_mclk, AUDIO_MCLK_D_CTRL);
static AXG_MST_MCLK_DIV(mst_e_mclk, AUDIO_MCLK_E_CTRL);
static AXG_MST_MCLK_DIV(mst_f_mclk, AUDIO_MCLK_F_CTRL);
static AXG_MST_MCLK_DIV(spdifout_clk, AUDIO_CLK_SPDIFOUT_CTRL);
-static AXG_MST_MCLK_DIV(spdifin_clk, AUDIO_CLK_SPDIFIN_CTRL);
static AXG_MST_MCLK_DIV(pdm_dclk, AUDIO_CLK_PDMIN_CTRL0);
-static AXG_MST_MCLK_DIV(pdm_sysclk, AUDIO_CLK_PDMIN_CTRL1);
+static AXG_MST_SYS_DIV(spdifin_clk, AUDIO_CLK_SPDIFIN_CTRL);
+static AXG_MST_SYS_DIV(pdm_sysclk, AUDIO_CLK_PDMIN_CTRL1);
-#define AXG_MST_MCLK_GATE(_name, _reg) \
- AXG_AUD_GATE(_name, _reg, 31, "axg_"#_name"_div", \
+#define AXG_MST_MCLK_GATE(_name, _reg) \
+ AXG_AUD_GATE(_name, _reg, 31, "axg_"#_name"_div", \
CLK_SET_RATE_PARENT)
static AXG_MST_MCLK_GATE(mst_a_mclk, AUDIO_MCLK_A_CTRL);
diff --git a/drivers/clk/meson/axg.c b/drivers/clk/meson/axg.c
index 00ce62ad6416..c981159b02c0 100644
--- a/drivers/clk/meson/axg.c
+++ b/drivers/clk/meson/axg.c
@@ -22,8 +22,13 @@
static DEFINE_SPINLOCK(meson_clk_lock);
-static struct clk_regmap axg_fixed_pll = {
+static struct clk_regmap axg_fixed_pll_dco = {
.data = &(struct meson_clk_pll_data){
+ .en = {
+ .reg_off = HHI_MPLL_CNTL,
+ .shift = 30,
+ .width = 1,
+ },
.m = {
.reg_off = HHI_MPLL_CNTL,
.shift = 0,
@@ -34,11 +39,6 @@ static struct clk_regmap axg_fixed_pll = {
.shift = 9,
.width = 5,
},
- .od = {
- .reg_off = HHI_MPLL_CNTL,
- .shift = 16,
- .width = 2,
- },
.frac = {
.reg_off = HHI_MPLL_CNTL2,
.shift = 0,
@@ -56,15 +56,39 @@ static struct clk_regmap axg_fixed_pll = {
},
},
.hw.init = &(struct clk_init_data){
- .name = "fixed_pll",
+ .name = "fixed_pll_dco",
.ops = &meson_clk_pll_ro_ops,
.parent_names = (const char *[]){ "xtal" },
.num_parents = 1,
},
};
-static struct clk_regmap axg_sys_pll = {
+static struct clk_regmap axg_fixed_pll = {
+ .data = &(struct clk_regmap_div_data){
+ .offset = HHI_MPLL_CNTL,
+ .shift = 16,
+ .width = 2,
+ .flags = CLK_DIVIDER_POWER_OF_TWO,
+ },
+ .hw.init = &(struct clk_init_data){
+ .name = "fixed_pll",
+ .ops = &clk_regmap_divider_ro_ops,
+ .parent_names = (const char *[]){ "fixed_pll_dco" },
+ .num_parents = 1,
+ /*
+ * This clock won't ever change at runtime so
+ * CLK_SET_RATE_PARENT is not required
+ */
+ },
+};
+
+static struct clk_regmap axg_sys_pll_dco = {
.data = &(struct meson_clk_pll_data){
+ .en = {
+ .reg_off = HHI_SYS_PLL_CNTL,
+ .shift = 30,
+ .width = 1,
+ },
.m = {
.reg_off = HHI_SYS_PLL_CNTL,
.shift = 0,
@@ -75,11 +99,6 @@ static struct clk_regmap axg_sys_pll = {
.shift = 9,
.width = 5,
},
- .od = {
- .reg_off = HHI_SYS_PLL_CNTL,
- .shift = 16,
- .width = 2,
- },
.l = {
.reg_off = HHI_SYS_PLL_CNTL,
.shift = 31,
@@ -92,102 +111,59 @@ static struct clk_regmap axg_sys_pll = {
},
},
.hw.init = &(struct clk_init_data){
- .name = "sys_pll",
+ .name = "sys_pll_dco",
.ops = &meson_clk_pll_ro_ops,
.parent_names = (const char *[]){ "xtal" },
.num_parents = 1,
- .flags = CLK_GET_RATE_NOCACHE,
},
};
-static const struct pll_rate_table axg_gp0_pll_rate_table[] = {
- PLL_RATE(240000000, 40, 1, 2),
- PLL_RATE(246000000, 41, 1, 2),
- PLL_RATE(252000000, 42, 1, 2),
- PLL_RATE(258000000, 43, 1, 2),
- PLL_RATE(264000000, 44, 1, 2),
- PLL_RATE(270000000, 45, 1, 2),
- PLL_RATE(276000000, 46, 1, 2),
- PLL_RATE(282000000, 47, 1, 2),
- PLL_RATE(288000000, 48, 1, 2),
- PLL_RATE(294000000, 49, 1, 2),
- PLL_RATE(300000000, 50, 1, 2),
- PLL_RATE(306000000, 51, 1, 2),
- PLL_RATE(312000000, 52, 1, 2),
- PLL_RATE(318000000, 53, 1, 2),
- PLL_RATE(324000000, 54, 1, 2),
- PLL_RATE(330000000, 55, 1, 2),
- PLL_RATE(336000000, 56, 1, 2),
- PLL_RATE(342000000, 57, 1, 2),
- PLL_RATE(348000000, 58, 1, 2),
- PLL_RATE(354000000, 59, 1, 2),
- PLL_RATE(360000000, 60, 1, 2),
- PLL_RATE(366000000, 61, 1, 2),
- PLL_RATE(372000000, 62, 1, 2),
- PLL_RATE(378000000, 63, 1, 2),
- PLL_RATE(384000000, 64, 1, 2),
- PLL_RATE(390000000, 65, 1, 3),
- PLL_RATE(396000000, 66, 1, 3),
- PLL_RATE(402000000, 67, 1, 3),
- PLL_RATE(408000000, 68, 1, 3),
- PLL_RATE(480000000, 40, 1, 1),
- PLL_RATE(492000000, 41, 1, 1),
- PLL_RATE(504000000, 42, 1, 1),
- PLL_RATE(516000000, 43, 1, 1),
- PLL_RATE(528000000, 44, 1, 1),
- PLL_RATE(540000000, 45, 1, 1),
- PLL_RATE(552000000, 46, 1, 1),
- PLL_RATE(564000000, 47, 1, 1),
- PLL_RATE(576000000, 48, 1, 1),
- PLL_RATE(588000000, 49, 1, 1),
- PLL_RATE(600000000, 50, 1, 1),
- PLL_RATE(612000000, 51, 1, 1),
- PLL_RATE(624000000, 52, 1, 1),
- PLL_RATE(636000000, 53, 1, 1),
- PLL_RATE(648000000, 54, 1, 1),
- PLL_RATE(660000000, 55, 1, 1),
- PLL_RATE(672000000, 56, 1, 1),
- PLL_RATE(684000000, 57, 1, 1),
- PLL_RATE(696000000, 58, 1, 1),
- PLL_RATE(708000000, 59, 1, 1),
- PLL_RATE(720000000, 60, 1, 1),
- PLL_RATE(732000000, 61, 1, 1),
- PLL_RATE(744000000, 62, 1, 1),
- PLL_RATE(756000000, 63, 1, 1),
- PLL_RATE(768000000, 64, 1, 1),
- PLL_RATE(780000000, 65, 1, 1),
- PLL_RATE(792000000, 66, 1, 1),
- PLL_RATE(804000000, 67, 1, 1),
- PLL_RATE(816000000, 68, 1, 1),
- PLL_RATE(960000000, 40, 1, 0),
- PLL_RATE(984000000, 41, 1, 0),
- PLL_RATE(1008000000, 42, 1, 0),
- PLL_RATE(1032000000, 43, 1, 0),
- PLL_RATE(1056000000, 44, 1, 0),
- PLL_RATE(1080000000, 45, 1, 0),
- PLL_RATE(1104000000, 46, 1, 0),
- PLL_RATE(1128000000, 47, 1, 0),
- PLL_RATE(1152000000, 48, 1, 0),
- PLL_RATE(1176000000, 49, 1, 0),
- PLL_RATE(1200000000, 50, 1, 0),
- PLL_RATE(1224000000, 51, 1, 0),
- PLL_RATE(1248000000, 52, 1, 0),
- PLL_RATE(1272000000, 53, 1, 0),
- PLL_RATE(1296000000, 54, 1, 0),
- PLL_RATE(1320000000, 55, 1, 0),
- PLL_RATE(1344000000, 56, 1, 0),
- PLL_RATE(1368000000, 57, 1, 0),
- PLL_RATE(1392000000, 58, 1, 0),
- PLL_RATE(1416000000, 59, 1, 0),
- PLL_RATE(1440000000, 60, 1, 0),
- PLL_RATE(1464000000, 61, 1, 0),
- PLL_RATE(1488000000, 62, 1, 0),
- PLL_RATE(1512000000, 63, 1, 0),
- PLL_RATE(1536000000, 64, 1, 0),
- PLL_RATE(1560000000, 65, 1, 0),
- PLL_RATE(1584000000, 66, 1, 0),
- PLL_RATE(1608000000, 67, 1, 0),
- PLL_RATE(1632000000, 68, 1, 0),
+static struct clk_regmap axg_sys_pll = {
+ .data = &(struct clk_regmap_div_data){
+ .offset = HHI_SYS_PLL_CNTL,
+ .shift = 16,
+ .width = 2,
+ .flags = CLK_DIVIDER_POWER_OF_TWO,
+ },
+ .hw.init = &(struct clk_init_data){
+ .name = "sys_pll",
+ .ops = &clk_regmap_divider_ro_ops,
+ .parent_names = (const char *[]){ "sys_pll_dco" },
+ .num_parents = 1,
+ .flags = CLK_SET_RATE_PARENT,
+ },
+};
+
+static const struct pll_params_table axg_gp0_pll_params_table[] = {
+ PLL_PARAMS(40, 1),
+ PLL_PARAMS(41, 1),
+ PLL_PARAMS(42, 1),
+ PLL_PARAMS(43, 1),
+ PLL_PARAMS(44, 1),
+ PLL_PARAMS(45, 1),
+ PLL_PARAMS(46, 1),
+ PLL_PARAMS(47, 1),
+ PLL_PARAMS(48, 1),
+ PLL_PARAMS(49, 1),
+ PLL_PARAMS(50, 1),
+ PLL_PARAMS(51, 1),
+ PLL_PARAMS(52, 1),
+ PLL_PARAMS(53, 1),
+ PLL_PARAMS(54, 1),
+ PLL_PARAMS(55, 1),
+ PLL_PARAMS(56, 1),
+ PLL_PARAMS(57, 1),
+ PLL_PARAMS(58, 1),
+ PLL_PARAMS(59, 1),
+ PLL_PARAMS(60, 1),
+ PLL_PARAMS(61, 1),
+ PLL_PARAMS(62, 1),
+ PLL_PARAMS(63, 1),
+ PLL_PARAMS(64, 1),
+ PLL_PARAMS(65, 1),
+ PLL_PARAMS(66, 1),
+ PLL_PARAMS(67, 1),
+ PLL_PARAMS(68, 1),
{ /* sentinel */ },
};
@@ -197,11 +173,15 @@ static const struct reg_sequence axg_gp0_init_regs[] = {
{ .reg = HHI_GP0_PLL_CNTL3, .def = 0x0a59a288 },
{ .reg = HHI_GP0_PLL_CNTL4, .def = 0xc000004d },
{ .reg = HHI_GP0_PLL_CNTL5, .def = 0x00078000 },
- { .reg = HHI_GP0_PLL_CNTL, .def = 0x40010250 },
};
-static struct clk_regmap axg_gp0_pll = {
+static struct clk_regmap axg_gp0_pll_dco = {
.data = &(struct meson_clk_pll_data){
+ .en = {
+ .reg_off = HHI_GP0_PLL_CNTL,
+ .shift = 30,
+ .width = 1,
+ },
.m = {
.reg_off = HHI_GP0_PLL_CNTL,
.shift = 0,
@@ -212,11 +192,6 @@ static struct clk_regmap axg_gp0_pll = {
.shift = 9,
.width = 5,
},
- .od = {
- .reg_off = HHI_GP0_PLL_CNTL,
- .shift = 16,
- .width = 2,
- },
.frac = {
.reg_off = HHI_GP0_PLL_CNTL1,
.shift = 0,
@@ -232,29 +207,49 @@ static struct clk_regmap axg_gp0_pll = {
.shift = 29,
.width = 1,
},
- .table = axg_gp0_pll_rate_table,
+ .table = axg_gp0_pll_params_table,
.init_regs = axg_gp0_init_regs,
.init_count = ARRAY_SIZE(axg_gp0_init_regs),
},
.hw.init = &(struct clk_init_data){
- .name = "gp0_pll",
+ .name = "gp0_pll_dco",
.ops = &meson_clk_pll_ops,
.parent_names = (const char *[]){ "xtal" },
.num_parents = 1,
},
};
+static struct clk_regmap axg_gp0_pll = {
+ .data = &(struct clk_regmap_div_data){
+ .offset = HHI_GP0_PLL_CNTL,
+ .shift = 16,
+ .width = 2,
+ .flags = CLK_DIVIDER_POWER_OF_TWO,
+ },
+ .hw.init = &(struct clk_init_data){
+ .name = "gp0_pll",
+ .ops = &clk_regmap_divider_ops,
+ .parent_names = (const char *[]){ "gp0_pll_dco" },
+ .num_parents = 1,
+ .flags = CLK_SET_RATE_PARENT,
+ },
+};
+
static const struct reg_sequence axg_hifi_init_regs[] = {
{ .reg = HHI_HIFI_PLL_CNTL1, .def = 0xc084b000 },
{ .reg = HHI_HIFI_PLL_CNTL2, .def = 0xb75020be },
{ .reg = HHI_HIFI_PLL_CNTL3, .def = 0x0a6a3a88 },
{ .reg = HHI_HIFI_PLL_CNTL4, .def = 0xc000004d },
{ .reg = HHI_HIFI_PLL_CNTL5, .def = 0x00058000 },
- { .reg = HHI_HIFI_PLL_CNTL, .def = 0x40010250 },
};
-static struct clk_regmap axg_hifi_pll = {
+static struct clk_regmap axg_hifi_pll_dco = {
.data = &(struct meson_clk_pll_data){
+ .en = {
+ .reg_off = HHI_HIFI_PLL_CNTL,
+ .shift = 30,
+ .width = 1,
+ },
.m = {
.reg_off = HHI_HIFI_PLL_CNTL,
.shift = 0,
@@ -265,11 +260,6 @@ static struct clk_regmap axg_hifi_pll = {
.shift = 9,
.width = 5,
},
- .od = {
- .reg_off = HHI_HIFI_PLL_CNTL,
- .shift = 16,
- .width = 2,
- },
.frac = {
.reg_off = HHI_HIFI_PLL_CNTL5,
.shift = 0,
@@ -285,19 +275,35 @@ static struct clk_regmap axg_hifi_pll = {
.shift = 29,
.width = 1,
},
- .table = axg_gp0_pll_rate_table,
+ .table = axg_gp0_pll_params_table,
.init_regs = axg_hifi_init_regs,
.init_count = ARRAY_SIZE(axg_hifi_init_regs),
.flags = CLK_MESON_PLL_ROUND_CLOSEST,
},
.hw.init = &(struct clk_init_data){
- .name = "hifi_pll",
+ .name = "hifi_pll_dco",
.ops = &meson_clk_pll_ops,
.parent_names = (const char *[]){ "xtal" },
.num_parents = 1,
},
};
+static struct clk_regmap axg_hifi_pll = {
+ .data = &(struct clk_regmap_div_data){
+ .offset = HHI_HIFI_PLL_CNTL,
+ .shift = 16,
+ .width = 2,
+ .flags = CLK_DIVIDER_POWER_OF_TWO,
+ },
+ .hw.init = &(struct clk_init_data){
+ .name = "hifi_pll",
+ .ops = &clk_regmap_divider_ops,
+ .parent_names = (const char *[]){ "hifi_pll_dco" },
+ .num_parents = 1,
+ .flags = CLK_SET_RATE_PARENT,
+ },
+};
+
static struct clk_fixed_factor axg_fclk_div2_div = {
.mult = 1,
.div = 2,
@@ -625,29 +631,31 @@ static struct clk_regmap axg_mpll3 = {
},
};
-static const struct pll_rate_table axg_pcie_pll_rate_table[] = {
+static const struct pll_params_table axg_pcie_pll_params_table[] = {
{
- .rate = 100000000,
- .m = 200,
- .n = 3,
- .od = 1,
- .od2 = 3,
+ .m = 200,
+ .n = 3,
},
{ /* sentinel */ },
};
static const struct reg_sequence axg_pcie_init_regs[] = {
- { .reg = HHI_PCIE_PLL_CNTL, .def = 0x400106c8 },
{ .reg = HHI_PCIE_PLL_CNTL1, .def = 0x0084a2aa },
{ .reg = HHI_PCIE_PLL_CNTL2, .def = 0xb75020be },
{ .reg = HHI_PCIE_PLL_CNTL3, .def = 0x0a47488e },
{ .reg = HHI_PCIE_PLL_CNTL4, .def = 0xc000004d },
{ .reg = HHI_PCIE_PLL_CNTL5, .def = 0x00078000 },
{ .reg = HHI_PCIE_PLL_CNTL6, .def = 0x002323c6 },
+ { .reg = HHI_PCIE_PLL_CNTL, .def = 0x400106c8 },
};
-static struct clk_regmap axg_pcie_pll = {
+static struct clk_regmap axg_pcie_pll_dco = {
.data = &(struct meson_clk_pll_data){
+ .en = {
+ .reg_off = HHI_PCIE_PLL_CNTL,
+ .shift = 30,
+ .width = 1,
+ },
.m = {
.reg_off = HHI_PCIE_PLL_CNTL,
.shift = 0,
@@ -658,16 +666,6 @@ static struct clk_regmap axg_pcie_pll = {
.shift = 9,
.width = 5,
},
- .od = {
- .reg_off = HHI_PCIE_PLL_CNTL,
- .shift = 16,
- .width = 2,
- },
- .od2 = {
- .reg_off = HHI_PCIE_PLL_CNTL6,
- .shift = 6,
- .width = 2,
- },
.frac = {
.reg_off = HHI_PCIE_PLL_CNTL1,
.shift = 0,
@@ -683,29 +681,63 @@ static struct clk_regmap axg_pcie_pll = {
.shift = 29,
.width = 1,
},
- .table = axg_pcie_pll_rate_table,
+ .table = axg_pcie_pll_params_table,
.init_regs = axg_pcie_init_regs,
.init_count = ARRAY_SIZE(axg_pcie_init_regs),
},
.hw.init = &(struct clk_init_data){
- .name = "pcie_pll",
+ .name = "pcie_pll_dco",
.ops = &meson_clk_pll_ops,
.parent_names = (const char *[]){ "xtal" },
.num_parents = 1,
},
};
+static struct clk_regmap axg_pcie_pll_od = {
+ .data = &(struct clk_regmap_div_data){
+ .offset = HHI_PCIE_PLL_CNTL,
+ .shift = 16,
+ .width = 2,
+ .flags = CLK_DIVIDER_POWER_OF_TWO,
+ },
+ .hw.init = &(struct clk_init_data){
+ .name = "pcie_pll_od",
+ .ops = &clk_regmap_divider_ops,
+ .parent_names = (const char *[]){ "pcie_pll_dco" },
+ .num_parents = 1,
+ .flags = CLK_SET_RATE_PARENT,
+ },
+};
+
+static struct clk_regmap axg_pcie_pll = {
+ .data = &(struct clk_regmap_div_data){
+ .offset = HHI_PCIE_PLL_CNTL6,
+ .shift = 6,
+ .width = 2,
+ .flags = CLK_DIVIDER_POWER_OF_TWO,
+ },
+ .hw.init = &(struct clk_init_data){
+ .name = "pcie_pll",
+ .ops = &clk_regmap_divider_ops,
+ .parent_names = (const char *[]){ "pcie_pll_od" },
+ .num_parents = 1,
+ .flags = CLK_SET_RATE_PARENT,
+ },
+};
+
static struct clk_regmap axg_pcie_mux = {
.data = &(struct clk_regmap_mux_data){
.offset = HHI_PCIE_PLL_CNTL6,
.mask = 0x1,
.shift = 2,
+ /* skip the parent mpll3, reserved for debug */
+ .table = (u32[]){ 1 },
},
.hw.init = &(struct clk_init_data){
.name = "pcie_mux",
.ops = &clk_regmap_mux_ops,
- .parent_names = (const char *[]){ "mpll3", "pcie_pll" },
- .num_parents = 2,
+ .parent_names = (const char *[]){ "pcie_pll" },
+ .num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
},
};
@@ -1107,6 +1139,12 @@ static struct clk_hw_onecell_data axg_hw_onecell_data = {
[CLKID_GEN_CLK_SEL] = &axg_gen_clk_sel.hw,
[CLKID_GEN_CLK_DIV] = &axg_gen_clk_div.hw,
[CLKID_GEN_CLK] = &axg_gen_clk.hw,
+ [CLKID_SYS_PLL_DCO] = &axg_sys_pll_dco.hw,
+ [CLKID_FIXED_PLL_DCO] = &axg_fixed_pll_dco.hw,
+ [CLKID_GP0_PLL_DCO] = &axg_gp0_pll_dco.hw,
+ [CLKID_HIFI_PLL_DCO] = &axg_hifi_pll_dco.hw,
+ [CLKID_PCIE_PLL_DCO] = &axg_pcie_pll_dco.hw,
+ [CLKID_PCIE_PLL_OD] = &axg_pcie_pll_od.hw,
[NR_CLKS] = NULL,
},
.num = NR_CLKS,
@@ -1185,6 +1223,8 @@ static struct clk_regmap *const axg_clk_regmaps[] = {
&axg_fclk_div4,
&axg_fclk_div5,
&axg_fclk_div7,
+ &axg_pcie_pll_dco,
+ &axg_pcie_pll_od,
&axg_pcie_pll,
&axg_pcie_mux,
&axg_pcie_ref,
@@ -1194,6 +1234,12 @@ static struct clk_regmap *const axg_clk_regmaps[] = {
&axg_gen_clk_sel,
&axg_gen_clk_div,
&axg_gen_clk,
+ &axg_fixed_pll_dco,
+ &axg_sys_pll_dco,
+ &axg_gp0_pll_dco,
+ &axg_hifi_pll_dco,
+ &axg_pcie_pll_dco,
+ &axg_pcie_pll_od,
};
static const struct of_device_id clkc_match_table[] = {
diff --git a/drivers/clk/meson/axg.h b/drivers/clk/meson/axg.h
index 1d04144a1b2c..0431dabac629 100644
--- a/drivers/clk/meson/axg.h
+++ b/drivers/clk/meson/axg.h
@@ -133,8 +133,14 @@
#define CLKID_PCIE_REF 78
#define CLKID_GEN_CLK_SEL 82
#define CLKID_GEN_CLK_DIV 83
+#define CLKID_SYS_PLL_DCO 85
+#define CLKID_FIXED_PLL_DCO 86
+#define CLKID_GP0_PLL_DCO 87
+#define CLKID_HIFI_PLL_DCO 88
+#define CLKID_PCIE_PLL_DCO 89
+#define CLKID_PCIE_PLL_OD 90
-#define NR_CLKS 85
+#define NR_CLKS 91
/* include the CLKIDs that have been made part of the DT binding */
#include <dt-bindings/clock/axg-clkc.h>
diff --git a/drivers/clk/meson/clk-pll.c b/drivers/clk/meson/clk-pll.c
index 3e04617ac47f..f5b5b3fabe3c 100644
--- a/drivers/clk/meson/clk-pll.c
+++ b/drivers/clk/meson/clk-pll.c
@@ -11,15 +11,19 @@
* In the most basic form, a Meson PLL is composed as follows:
*
* PLL
- * +------------------------------+
- * | |
- * in -----[ /N ]---[ *M ]---[ >>OD ]----->> out
- * | ^ ^ |
- * +------------------------------+
- * | |
- * FREF VCO
+ * +--------------------------------+
+ * | |
+ * | +--+ |
+ * in >>-----[ /N ]--->| | +-----+ |
+ * | | |------| DCO |---->> out
+ * | +--------->| | +--v--+ |
+ * | | +--+ | |
+ * | | | |
+ * | +--[ *(M + (F/Fmax) ]<--+ |
+ * | |
+ * +--------------------------------+
*
- * out = in * (m + frac / frac_max) / (n << sum(ods))
+ * out = in * (m + frac / frac_max) / n
*/
#include <linux/clk-provider.h>
@@ -41,12 +45,11 @@ meson_clk_pll_data(struct clk_regmap *clk)
}
static unsigned long __pll_params_to_rate(unsigned long parent_rate,
- const struct pll_rate_table *pllt,
+ const struct pll_params_table *pllt,
u16 frac,
struct meson_clk_pll_data *pll)
{
u64 rate = (u64)parent_rate * pllt->m;
- unsigned int od = pllt->od + pllt->od2 + pllt->od3;
if (frac && MESON_PARM_APPLICABLE(&pll->frac)) {
u64 frac_rate = (u64)parent_rate * frac;
@@ -55,7 +58,7 @@ static unsigned long __pll_params_to_rate(unsigned long parent_rate,
(1 << pll->frac.width));
}
- return DIV_ROUND_UP_ULL(rate, pllt->n << od);
+ return DIV_ROUND_UP_ULL(rate, pllt->n);
}
static unsigned long meson_clk_pll_recalc_rate(struct clk_hw *hw,
@@ -63,20 +66,11 @@ static unsigned long meson_clk_pll_recalc_rate(struct clk_hw *hw,
{
struct clk_regmap *clk = to_clk_regmap(hw);
struct meson_clk_pll_data *pll = meson_clk_pll_data(clk);
- struct pll_rate_table pllt;
+ struct pll_params_table pllt;
u16 frac;
pllt.n = meson_parm_read(clk->map, &pll->n);
pllt.m = meson_parm_read(clk->map, &pll->m);
- pllt.od = meson_parm_read(clk->map, &pll->od);
-
- pllt.od2 = MESON_PARM_APPLICABLE(&pll->od2) ?
- meson_parm_read(clk->map, &pll->od2) :
- 0;
-
- pllt.od3 = MESON_PARM_APPLICABLE(&pll->od3) ?
- meson_parm_read(clk->map, &pll->od3) :
- 0;
frac = MESON_PARM_APPLICABLE(&pll->frac) ?
meson_parm_read(clk->map, &pll->frac) :
@@ -87,14 +81,12 @@ static unsigned long meson_clk_pll_recalc_rate(struct clk_hw *hw,
static u16 __pll_params_with_frac(unsigned long rate,
unsigned long parent_rate,
- const struct pll_rate_table *pllt,
+ const struct pll_params_table *pllt,
struct meson_clk_pll_data *pll)
{
u16 frac_max = (1 << pll->frac.width);
u64 val = (u64)rate * pllt->n;
- val <<= pllt->od + pllt->od2 + pllt->od3;
-
if (pll->flags & CLK_MESON_PLL_ROUND_CLOSEST)
val = DIV_ROUND_CLOSEST_ULL(val * frac_max, parent_rate);
else
@@ -105,29 +97,50 @@ static u16 __pll_params_with_frac(unsigned long rate,
return min((u16)val, (u16)(frac_max - 1));
}
-static const struct pll_rate_table *
+static bool meson_clk_pll_is_better(unsigned long rate,
+ unsigned long best,
+ unsigned long now,
+ struct meson_clk_pll_data *pll)
+{
+ if (!(pll->flags & CLK_MESON_PLL_ROUND_CLOSEST) ||
+ MESON_PARM_APPLICABLE(&pll->frac)) {
+ /* Round down */
+ if (now < rate && best < now)
+ return true;
+ } else {
+ /* Round Closest */
+ if (abs(now - rate) < abs(best - rate))
+ return true;
+ }
+
+ return false;
+}
+
+static const struct pll_params_table *
meson_clk_get_pll_settings(unsigned long rate,
+ unsigned long parent_rate,
struct meson_clk_pll_data *pll)
{
- const struct pll_rate_table *table = pll->table;
- unsigned int i = 0;
+ const struct pll_params_table *table = pll->table;
+ unsigned long best = 0, now = 0;
+ unsigned int i, best_i = 0;
if (!table)
return NULL;
- /* Find the first table element exceeding rate */
- while (table[i].rate && table[i].rate <= rate)
- i++;
+ for (i = 0; table[i].n; i++) {
+ now = __pll_params_to_rate(parent_rate, &table[i], 0, pll);
- if (i != 0) {
- if (MESON_PARM_APPLICABLE(&pll->frac) ||
- !(pll->flags & CLK_MESON_PLL_ROUND_CLOSEST) ||
- (abs(rate - table[i - 1].rate) <
- abs(rate - table[i].rate)))
- i--;
+ /* If we get an exact match, don't bother any further */
+ if (now == rate) {
+ return &table[i];
+ } else if (meson_clk_pll_is_better(rate, best, now, pll)) {
+ best = now;
+ best_i = i;
+ }
}
- return (struct pll_rate_table *)&table[i];
+ return (struct pll_params_table *)&table[best_i];
}
static long meson_clk_pll_round_rate(struct clk_hw *hw, unsigned long rate,
@@ -135,16 +148,18 @@ static long meson_clk_pll_round_rate(struct clk_hw *hw, unsigned long rate,
{
struct clk_regmap *clk = to_clk_regmap(hw);
struct meson_clk_pll_data *pll = meson_clk_pll_data(clk);
- const struct pll_rate_table *pllt =
- meson_clk_get_pll_settings(rate, pll);
+ const struct pll_params_table *pllt =
+ meson_clk_get_pll_settings(rate, *parent_rate, pll);
+ unsigned long round;
u16 frac;
if (!pllt)
return meson_clk_pll_recalc_rate(hw, *parent_rate);
- if (!MESON_PARM_APPLICABLE(&pll->frac)
- || rate == pllt->rate)
- return pllt->rate;
+ round = __pll_params_to_rate(*parent_rate, pllt, 0, pll);
+
+ if (!MESON_PARM_APPLICABLE(&pll->frac) || rate == round)
+ return round;
/*
* The rate provided by the setting is not an exact match, let's
@@ -185,12 +200,45 @@ static void meson_clk_pll_init(struct clk_hw *hw)
}
}
+static int meson_clk_pll_enable(struct clk_hw *hw)
+{
+ struct clk_regmap *clk = to_clk_regmap(hw);
+ struct meson_clk_pll_data *pll = meson_clk_pll_data(clk);
+
+ /* Make sure the pll is in reset */
+ meson_parm_write(clk->map, &pll->rst, 1);
+
+ /* Enable the pll */
+ meson_parm_write(clk->map, &pll->en, 1);
+
+ /* Take the pll out reset */
+ meson_parm_write(clk->map, &pll->rst, 0);
+
+ if (meson_clk_pll_wait_lock(hw))
+ return -EIO;
+
+ return 0;
+}
+
+static void meson_clk_pll_disable(struct clk_hw *hw)
+{
+ struct clk_regmap *clk = to_clk_regmap(hw);
+ struct meson_clk_pll_data *pll = meson_clk_pll_data(clk);
+
+ /* Put the pll is in reset */
+ meson_parm_write(clk->map, &pll->rst, 1);
+
+ /* Disable the pll */
+ meson_parm_write(clk->map, &pll->en, 0);
+}
+
static int meson_clk_pll_set_rate(struct clk_hw *hw, unsigned long rate,
unsigned long parent_rate)
{
struct clk_regmap *clk = to_clk_regmap(hw);
struct meson_clk_pll_data *pll = meson_clk_pll_data(clk);
- const struct pll_rate_table *pllt;
+ const struct pll_params_table *pllt;
+ unsigned int enabled;
unsigned long old_rate;
u16 frac = 0;
@@ -199,32 +247,28 @@ static int meson_clk_pll_set_rate(struct clk_hw *hw, unsigned long rate,
old_rate = rate;
- pllt = meson_clk_get_pll_settings(rate, pll);
+ pllt = meson_clk_get_pll_settings(rate, parent_rate, pll);
if (!pllt)
return -EINVAL;
- /* Put the pll in reset to write the params */
- meson_parm_write(clk->map, &pll->rst, 1);
+ enabled = meson_parm_read(clk->map, &pll->en);
+ if (enabled)
+ meson_clk_pll_disable(hw);
meson_parm_write(clk->map, &pll->n, pllt->n);
meson_parm_write(clk->map, &pll->m, pllt->m);
- meson_parm_write(clk->map, &pll->od, pllt->od);
- if (MESON_PARM_APPLICABLE(&pll->od2))
- meson_parm_write(clk->map, &pll->od2, pllt->od2);
-
- if (MESON_PARM_APPLICABLE(&pll->od3))
- meson_parm_write(clk->map, &pll->od3, pllt->od3);
if (MESON_PARM_APPLICABLE(&pll->frac)) {
frac = __pll_params_with_frac(rate, parent_rate, pllt, pll);
meson_parm_write(clk->map, &pll->frac, frac);
}
- /* make sure the reset is cleared at this point */
- meson_parm_write(clk->map, &pll->rst, 0);
+ /* If the pll is stopped, bail out now */
+ if (!enabled)
+ return 0;
- if (meson_clk_pll_wait_lock(hw)) {
+ if (meson_clk_pll_enable(hw)) {
pr_warn("%s: pll did not lock, trying to restore old rate %lu\n",
__func__, old_rate);
/*
@@ -244,6 +288,8 @@ const struct clk_ops meson_clk_pll_ops = {
.recalc_rate = meson_clk_pll_recalc_rate,
.round_rate = meson_clk_pll_round_rate,
.set_rate = meson_clk_pll_set_rate,
+ .enable = meson_clk_pll_enable,
+ .disable = meson_clk_pll_disable
};
const struct clk_ops meson_clk_pll_ro_ops = {
diff --git a/drivers/clk/meson/clkc.h b/drivers/clk/meson/clkc.h
index 24cec16b6038..6b96d55c047d 100644
--- a/drivers/clk/meson/clkc.h
+++ b/drivers/clk/meson/clkc.h
@@ -43,37 +43,29 @@ static inline void meson_parm_write(struct regmap *map, struct parm *p,
}
-struct pll_rate_table {
- unsigned long rate;
+struct pll_params_table {
u16 m;
u16 n;
- u16 od;
- u16 od2;
- u16 od3;
};
-#define PLL_RATE(_r, _m, _n, _od) \
+#define PLL_PARAMS(_m, _n) \
{ \
- .rate = (_r), \
.m = (_m), \
.n = (_n), \
- .od = (_od), \
}
#define CLK_MESON_PLL_ROUND_CLOSEST BIT(0)
struct meson_clk_pll_data {
+ struct parm en;
struct parm m;
struct parm n;
struct parm frac;
- struct parm od;
- struct parm od2;
- struct parm od3;
struct parm l;
struct parm rst;
const struct reg_sequence *init_regs;
unsigned int init_count;
- const struct pll_rate_table *table;
+ const struct pll_params_table *table;
u8 flags;
};
diff --git a/drivers/clk/meson/gxbb.c b/drivers/clk/meson/gxbb.c
index 86d3ae58e84c..9309cfaaa464 100644
--- a/drivers/clk/meson/gxbb.c
+++ b/drivers/clk/meson/gxbb.c
@@ -18,165 +18,77 @@
static DEFINE_SPINLOCK(meson_clk_lock);
-static const struct pll_rate_table gxbb_gp0_pll_rate_table[] = {
- PLL_RATE(96000000, 32, 1, 3),
- PLL_RATE(99000000, 33, 1, 3),
- PLL_RATE(102000000, 34, 1, 3),
- PLL_RATE(105000000, 35, 1, 3),
- PLL_RATE(108000000, 36, 1, 3),
- PLL_RATE(111000000, 37, 1, 3),
- PLL_RATE(114000000, 38, 1, 3),
- PLL_RATE(117000000, 39, 1, 3),
- PLL_RATE(120000000, 40, 1, 3),
- PLL_RATE(123000000, 41, 1, 3),
- PLL_RATE(126000000, 42, 1, 3),
- PLL_RATE(129000000, 43, 1, 3),
- PLL_RATE(132000000, 44, 1, 3),
- PLL_RATE(135000000, 45, 1, 3),
- PLL_RATE(138000000, 46, 1, 3),
- PLL_RATE(141000000, 47, 1, 3),
- PLL_RATE(144000000, 48, 1, 3),
- PLL_RATE(147000000, 49, 1, 3),
- PLL_RATE(150000000, 50, 1, 3),
- PLL_RATE(153000000, 51, 1, 3),
- PLL_RATE(156000000, 52, 1, 3),
- PLL_RATE(159000000, 53, 1, 3),
- PLL_RATE(162000000, 54, 1, 3),
- PLL_RATE(165000000, 55, 1, 3),
- PLL_RATE(168000000, 56, 1, 3),
- PLL_RATE(171000000, 57, 1, 3),
- PLL_RATE(174000000, 58, 1, 3),
- PLL_RATE(177000000, 59, 1, 3),
- PLL_RATE(180000000, 60, 1, 3),
- PLL_RATE(183000000, 61, 1, 3),
- PLL_RATE(186000000, 62, 1, 3),
- PLL_RATE(192000000, 32, 1, 2),
- PLL_RATE(198000000, 33, 1, 2),
- PLL_RATE(204000000, 34, 1, 2),
- PLL_RATE(210000000, 35, 1, 2),
- PLL_RATE(216000000, 36, 1, 2),
- PLL_RATE(222000000, 37, 1, 2),
- PLL_RATE(228000000, 38, 1, 2),
- PLL_RATE(234000000, 39, 1, 2),
- PLL_RATE(240000000, 40, 1, 2),
- PLL_RATE(246000000, 41, 1, 2),
- PLL_RATE(252000000, 42, 1, 2),
- PLL_RATE(258000000, 43, 1, 2),
- PLL_RATE(264000000, 44, 1, 2),
- PLL_RATE(270000000, 45, 1, 2),
- PLL_RATE(276000000, 46, 1, 2),
- PLL_RATE(282000000, 47, 1, 2),
- PLL_RATE(288000000, 48, 1, 2),
- PLL_RATE(294000000, 49, 1, 2),
- PLL_RATE(300000000, 50, 1, 2),
- PLL_RATE(306000000, 51, 1, 2),
- PLL_RATE(312000000, 52, 1, 2),
- PLL_RATE(318000000, 53, 1, 2),
- PLL_RATE(324000000, 54, 1, 2),
- PLL_