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path: root/drivers/clk/meson/axg.c
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-rw-r--r--drivers/clk/meson/axg.c938
1 files changed, 938 insertions, 0 deletions
diff --git a/drivers/clk/meson/axg.c b/drivers/clk/meson/axg.c
new file mode 100644
index 000000000000..1294f3ad7cd5
--- /dev/null
+++ b/drivers/clk/meson/axg.c
@@ -0,0 +1,938 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * AmLogic Meson-AXG Clock Controller Driver
+ *
+ * Copyright (c) 2016 Baylibre SAS.
+ * Author: Michael Turquette <mturquette@baylibre.com>
+ *
+ * Copyright (c) 2017 Amlogic, inc.
+ * Author: Qiufang Dai <qiufang.dai@amlogic.com>
+ */
+
+#include <linux/clk.h>
+#include <linux/clk-provider.h>
+#include <linux/of_address.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <linux/init.h>
+
+#include "clkc.h"
+#include "axg.h"
+
+static DEFINE_SPINLOCK(meson_clk_lock);
+
+static const struct pll_rate_table sys_pll_rate_table[] = {
+ PLL_RATE(24000000, 56, 1, 2),
+ PLL_RATE(48000000, 64, 1, 2),
+ PLL_RATE(72000000, 72, 1, 2),
+ PLL_RATE(96000000, 64, 1, 2),
+ PLL_RATE(120000000, 80, 1, 2),
+ PLL_RATE(144000000, 96, 1, 2),
+ PLL_RATE(168000000, 56, 1, 1),
+ PLL_RATE(192000000, 64, 1, 1),
+ PLL_RATE(216000000, 72, 1, 1),
+ PLL_RATE(240000000, 80, 1, 1),
+ PLL_RATE(264000000, 88, 1, 1),
+ PLL_RATE(288000000, 96, 1, 1),
+ PLL_RATE(312000000, 52, 1, 2),
+ PLL_RATE(336000000, 56, 1, 2),
+ PLL_RATE(360000000, 60, 1, 2),
+ PLL_RATE(384000000, 64, 1, 2),
+ PLL_RATE(408000000, 68, 1, 2),
+ PLL_RATE(432000000, 72, 1, 2),
+ PLL_RATE(456000000, 76, 1, 2),
+ PLL_RATE(480000000, 80, 1, 2),
+ PLL_RATE(504000000, 84, 1, 2),
+ PLL_RATE(528000000, 88, 1, 2),
+ PLL_RATE(552000000, 92, 1, 2),
+ PLL_RATE(576000000, 96, 1, 2),
+ PLL_RATE(600000000, 50, 1, 1),
+ PLL_RATE(624000000, 52, 1, 1),
+ PLL_RATE(648000000, 54, 1, 1),
+ PLL_RATE(672000000, 56, 1, 1),
+ PLL_RATE(696000000, 58, 1, 1),
+ PLL_RATE(720000000, 60, 1, 1),
+ PLL_RATE(744000000, 62, 1, 1),
+ PLL_RATE(768000000, 64, 1, 1),
+ PLL_RATE(792000000, 66, 1, 1),
+ PLL_RATE(816000000, 68, 1, 1),
+ PLL_RATE(840000000, 70, 1, 1),
+ PLL_RATE(864000000, 72, 1, 1),
+ PLL_RATE(888000000, 74, 1, 1),
+ PLL_RATE(912000000, 76, 1, 1),
+ PLL_RATE(936000000, 78, 1, 1),
+ PLL_RATE(960000000, 80, 1, 1),
+ PLL_RATE(984000000, 82, 1, 1),
+ PLL_RATE(1008000000, 84, 1, 1),
+ PLL_RATE(1032000000, 86, 1, 1),
+ PLL_RATE(1056000000, 88, 1, 1),
+ PLL_RATE(1080000000, 90, 1, 1),
+ PLL_RATE(1104000000, 92, 1, 1),
+ PLL_RATE(1128000000, 94, 1, 1),
+ PLL_RATE(1152000000, 96, 1, 1),
+ PLL_RATE(1176000000, 98, 1, 1),
+ 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),
+ PLL_RATE(1656000000, 68, 1, 0),
+ PLL_RATE(1680000000, 68, 1, 0),
+ PLL_RATE(1704000000, 68, 1, 0),
+ PLL_RATE(1728000000, 69, 1, 0),
+ PLL_RATE(1752000000, 69, 1, 0),
+ PLL_RATE(1776000000, 69, 1, 0),
+ PLL_RATE(1800000000, 69, 1, 0),
+ PLL_RATE(1824000000, 70, 1, 0),
+ PLL_RATE(1848000000, 70, 1, 0),
+ PLL_RATE(1872000000, 70, 1, 0),
+ PLL_RATE(1896000000, 70, 1, 0),
+ PLL_RATE(1920000000, 71, 1, 0),
+ PLL_RATE(1944000000, 71, 1, 0),
+ PLL_RATE(1968000000, 71, 1, 0),
+ PLL_RATE(1992000000, 71, 1, 0),
+ PLL_RATE(2016000000, 72, 1, 0),
+ PLL_RATE(2040000000, 72, 1, 0),
+ PLL_RATE(2064000000, 72, 1, 0),
+ PLL_RATE(2088000000, 72, 1, 0),
+ PLL_RATE(2112000000, 73, 1, 0),
+ { /* sentinel */ },
+};
+
+static struct meson_clk_pll axg_fixed_pll = {
+ .m = {
+ .reg_off = HHI_MPLL_CNTL,
+ .shift = 0,
+ .width = 9,
+ },
+ .n = {
+ .reg_off = HHI_MPLL_CNTL,
+ .shift = 9,
+ .width = 5,
+ },
+ .od = {
+ .reg_off = HHI_MPLL_CNTL,
+ .shift = 16,
+ .width = 2,
+ },
+ .lock = &meson_clk_lock,
+ .hw.init = &(struct clk_init_data){
+ .name = "fixed_pll",
+ .ops = &meson_clk_pll_ro_ops,
+ .parent_names = (const char *[]){ "xtal" },
+ .num_parents = 1,
+ },
+};
+
+static struct meson_clk_pll axg_sys_pll = {
+ .m = {
+ .reg_off = HHI_SYS_PLL_CNTL,
+ .shift = 0,
+ .width = 9,
+ },
+ .n = {
+ .reg_off = HHI_SYS_PLL_CNTL,
+ .shift = 9,
+ .width = 5,
+ },
+ .od = {
+ .reg_off = HHI_SYS_PLL_CNTL,
+ .shift = 10,
+ .width = 2,
+ },
+ .rate_table = sys_pll_rate_table,
+ .rate_count = ARRAY_SIZE(sys_pll_rate_table),
+ .lock = &meson_clk_lock,
+ .hw.init = &(struct clk_init_data){
+ .name = "sys_pll",
+ .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),
+ { /* sentinel */ },
+};
+
+static struct pll_params_table axg_gp0_params_table[] = {
+ PLL_PARAM(HHI_GP0_PLL_CNTL, 0x40010250),
+ PLL_PARAM(HHI_GP0_PLL_CNTL1, 0xc084a000),
+ PLL_PARAM(HHI_GP0_PLL_CNTL2, 0xb75020be),
+ PLL_PARAM(HHI_GP0_PLL_CNTL3, 0x0a59a288),
+ PLL_PARAM(HHI_GP0_PLL_CNTL4, 0xc000004d),
+ PLL_PARAM(HHI_GP0_PLL_CNTL5, 0x00078000),
+};
+
+static struct meson_clk_pll axg_gp0_pll = {
+ .m = {
+ .reg_off = HHI_GP0_PLL_CNTL,
+ .shift = 0,
+ .width = 9,
+ },
+ .n = {
+ .reg_off = HHI_GP0_PLL_CNTL,
+ .shift = 9,
+ .width = 5,
+ },
+ .od = {
+ .reg_off = HHI_GP0_PLL_CNTL,
+ .shift = 16,
+ .width = 2,
+ },
+ .params = {
+ .params_table = axg_gp0_params_table,
+ .params_count = ARRAY_SIZE(axg_gp0_params_table),
+ .no_init_reset = true,
+ .reset_lock_loop = true,
+ },
+ .rate_table = axg_gp0_pll_rate_table,
+ .rate_count = ARRAY_SIZE(axg_gp0_pll_rate_table),
+ .lock = &meson_clk_lock,
+ .hw.init = &(struct clk_init_data){
+ .name = "gp0_pll",
+ .ops = &meson_clk_pll_ops,
+ .parent_names = (const char *[]){ "xtal" },
+ .num_parents = 1,
+ },
+};
+
+
+static struct clk_fixed_factor axg_fclk_div2 = {
+ .mult = 1,
+ .div = 2,
+ .hw.init = &(struct clk_init_data){
+ .name = "fclk_div2",
+ .ops = &clk_fixed_factor_ops,
+ .parent_names = (const char *[]){ "fixed_pll" },
+ .num_parents = 1,
+ },
+};
+
+static struct clk_fixed_factor axg_fclk_div3 = {
+ .mult = 1,
+ .div = 3,
+ .hw.init = &(struct clk_init_data){
+ .name = "fclk_div3",
+ .ops = &clk_fixed_factor_ops,
+ .parent_names = (const char *[]){ "fixed_pll" },
+ .num_parents = 1,
+ },
+};
+
+static struct clk_fixed_factor axg_fclk_div4 = {
+ .mult = 1,
+ .div = 4,
+ .hw.init = &(struct clk_init_data){
+ .name = "fclk_div4",
+ .ops = &clk_fixed_factor_ops,
+ .parent_names = (const char *[]){ "fixed_pll" },
+ .num_parents = 1,
+ },
+};
+
+static struct clk_fixed_factor axg_fclk_div5 = {
+ .mult = 1,
+ .div = 5,
+ .hw.init = &(struct clk_init_data){
+ .name = "fclk_div5",
+ .ops = &clk_fixed_factor_ops,
+ .parent_names = (const char *[]){ "fixed_pll" },
+ .num_parents = 1,
+ },
+};
+
+static struct clk_fixed_factor axg_fclk_div7 = {
+ .mult = 1,
+ .div = 7,
+ .hw.init = &(struct clk_init_data){
+ .name = "fclk_div7",
+ .ops = &clk_fixed_factor_ops,
+ .parent_names = (const char *[]){ "fixed_pll" },
+ .num_parents = 1,
+ },
+};
+
+static struct meson_clk_mpll axg_mpll0 = {
+ .sdm = {
+ .reg_off = HHI_MPLL_CNTL7,
+ .shift = 0,
+ .width = 14,
+ },
+ .sdm_en = {
+ .reg_off = HHI_MPLL_CNTL7,
+ .shift = 15,
+ .width = 1,
+ },
+ .n2 = {
+ .reg_off = HHI_MPLL_CNTL7,
+ .shift = 16,
+ .width = 9,
+ },
+ .en = {
+ .reg_off = HHI_MPLL_CNTL7,
+ .shift = 14,
+ .width = 1,
+ },
+ .ssen = {
+ .reg_off = HHI_MPLL_CNTL,
+ .shift = 25,
+ .width = 1,
+ },
+ .lock = &meson_clk_lock,
+ .hw.init = &(struct clk_init_data){
+ .name = "mpll0",
+ .ops = &meson_clk_mpll_ops,
+ .parent_names = (const char *[]){ "fixed_pll" },
+ .num_parents = 1,
+ },
+};
+
+static struct meson_clk_mpll axg_mpll1 = {
+ .sdm = {
+ .reg_off = HHI_MPLL_CNTL8,
+ .shift = 0,
+ .width = 14,
+ },
+ .sdm_en = {
+ .reg_off = HHI_MPLL_CNTL8,
+ .shift = 15,
+ .width = 1,
+ },
+ .n2 = {
+ .reg_off = HHI_MPLL_CNTL8,
+ .shift = 16,
+ .width = 9,
+ },
+ .en = {
+ .reg_off = HHI_MPLL_CNTL8,
+ .shift = 14,
+ .width = 1,
+ },
+ .lock = &meson_clk_lock,
+ .hw.init = &(struct clk_init_data){
+ .name = "mpll1",
+ .ops = &meson_clk_mpll_ops,
+ .parent_names = (const char *[]){ "fixed_pll" },
+ .num_parents = 1,
+ },
+};
+
+static struct meson_clk_mpll axg_mpll2 = {
+ .sdm = {
+ .reg_off = HHI_MPLL_CNTL9,
+ .shift = 0,
+ .width = 14,
+ },
+ .sdm_en = {
+ .reg_off = HHI_MPLL_CNTL9,
+ .shift = 15,
+ .width = 1,
+ },
+ .n2 = {
+ .reg_off = HHI_MPLL_CNTL9,
+ .shift = 16,
+ .width = 9,
+ },
+ .en = {
+ .reg_off = HHI_MPLL_CNTL9,
+ .shift = 14,
+ .width = 1,
+ },
+ .lock = &meson_clk_lock,
+ .hw.init = &(struct clk_init_data){
+ .name = "mpll2",
+ .ops = &meson_clk_mpll_ops,
+ .parent_names = (const char *[]){ "fixed_pll" },
+ .num_parents = 1,
+ },
+};
+
+static struct meson_clk_mpll axg_mpll3 = {
+ .sdm = {
+ .reg_off = HHI_MPLL3_CNTL0,
+ .shift = 12,
+ .width = 14,
+ },
+ .sdm_en = {
+ .reg_off = HHI_MPLL3_CNTL0,
+ .shift = 11,
+ .width = 1,
+ },
+ .n2 = {
+ .reg_off = HHI_MPLL3_CNTL0,
+ .shift = 2,
+ .width = 9,
+ },
+ .en = {
+ .reg_off = HHI_MPLL3_CNTL0,
+ .shift = 0,
+ .width = 1,
+ },
+ .lock = &meson_clk_lock,
+ .hw.init = &(struct clk_init_data){
+ .name = "mpll3",
+ .ops = &meson_clk_mpll_ops,
+ .parent_names = (const char *[]){ "fixed_pll" },
+ .num_parents = 1,
+ },
+};
+
+/*
+ * FIXME The legacy composite clocks (e.g. clk81) are both PLL post-dividers
+ * and should be modeled with their respective PLLs via the forthcoming
+ * coordinated clock rates feature
+ */
+static u32 mux_table_clk81[] = { 0, 2, 3, 4, 5, 6, 7 };
+static const char * const clk81_parent_names[] = {
+ "xtal", "fclk_div7", "mpll1", "mpll2", "fclk_div4",
+ "fclk_div3", "fclk_div5"
+};
+
+static struct clk_mux axg_mpeg_clk_sel = {
+ .reg = (void *)HHI_MPEG_CLK_CNTL,
+ .mask = 0x7,
+ .shift = 12,
+ .flags = CLK_MUX_READ_ONLY,
+ .table = mux_table_clk81,
+ .lock = &meson_clk_lock,
+ .hw.init = &(struct clk_init_data){
+ .name = "mpeg_clk_sel",
+ .ops = &clk_mux_ro_ops,
+ .parent_names = clk81_parent_names,
+ .num_parents = ARRAY_SIZE(clk81_parent_names),
+ },
+};
+
+static struct clk_divider axg_mpeg_clk_div = {
+ .reg = (void *)HHI_MPEG_CLK_CNTL,
+ .shift = 0,
+ .width = 7,
+ .lock = &meson_clk_lock,
+ .hw.init = &(struct clk_init_data){
+ .name = "mpeg_clk_div",
+ .ops = &clk_divider_ops,
+ .parent_names = (const char *[]){ "mpeg_clk_sel" },
+ .num_parents = 1,
+ .flags = CLK_SET_RATE_PARENT,
+ },
+};
+
+static struct clk_gate axg_clk81 = {
+ .reg = (void *)HHI_MPEG_CLK_CNTL,
+ .bit_idx = 7,
+ .lock = &meson_clk_lock,
+ .hw.init = &(struct clk_init_data){
+ .name = "clk81",
+ .ops = &clk_gate_ops,
+ .parent_names = (const char *[]){ "mpeg_clk_div" },
+ .num_parents = 1,
+ .flags = (CLK_SET_RATE_PARENT | CLK_IS_CRITICAL),
+ },
+};
+
+static const char * const axg_sd_emmc_clk0_parent_names[] = {
+ "xtal", "fclk_div2", "fclk_div3", "fclk_div5", "fclk_div7",
+
+ /*
+ * Following these parent clocks, we should also have had mpll2, mpll3
+ * and gp0_pll but these clocks are too precious to be used here. All
+ * the necessary rates for MMC and NAND operation can be acheived using
+ * xtal or fclk_div clocks
+ */
+};
+
+/* SDcard clock */
+static struct clk_mux axg_sd_emmc_b_clk0_sel = {
+ .reg = (void *)HHI_SD_EMMC_CLK_CNTL,
+ .mask = 0x7,
+ .shift = 25,
+ .lock = &meson_clk_lock,
+ .hw.init = &(struct clk_init_data) {
+ .name = "sd_emmc_b_clk0_sel",
+ .ops = &clk_mux_ops,
+ .parent_names = axg_sd_emmc_clk0_parent_names,
+ .num_parents = ARRAY_SIZE(axg_sd_emmc_clk0_parent_names),
+ .flags = CLK_SET_RATE_PARENT,
+ },
+};
+
+static struct clk_divider axg_sd_emmc_b_clk0_div = {
+ .reg = (void *)HHI_SD_EMMC_CLK_CNTL,
+ .shift = 16,
+ .width = 7,
+ .lock = &meson_clk_lock,
+ .flags = CLK_DIVIDER_ROUND_CLOSEST,
+ .hw.init = &(struct clk_init_data) {
+ .name = "sd_emmc_b_clk0_div",
+ .ops = &clk_divider_ops,
+ .parent_names = (const char *[]){ "sd_emmc_b_clk0_sel" },
+ .num_parents = 1,
+ .flags = CLK_SET_RATE_PARENT,
+ },
+};
+
+static struct clk_gate axg_sd_emmc_b_clk0 = {
+ .reg = (void *)HHI_SD_EMMC_CLK_CNTL,
+ .bit_idx = 23,
+ .lock = &meson_clk_lock,
+ .hw.init = &(struct clk_init_data){
+ .name = "sd_emmc_b_clk0",
+ .ops = &clk_gate_ops,
+ .parent_names = (const char *[]){ "sd_emmc_b_clk0_div" },
+ .num_parents = 1,
+ .flags = CLK_SET_RATE_PARENT,
+ },
+};
+
+/* EMMC/NAND clock */
+static struct clk_mux axg_sd_emmc_c_clk0_sel = {
+ .reg = (void *)HHI_NAND_CLK_CNTL,
+ .mask = 0x7,
+ .shift = 9,
+ .lock = &meson_clk_lock,
+ .hw.init = &(struct clk_init_data) {
+ .name = "sd_emmc_c_clk0_sel",
+ .ops = &clk_mux_ops,
+ .parent_names = axg_sd_emmc_clk0_parent_names,
+ .num_parents = ARRAY_SIZE(axg_sd_emmc_clk0_parent_names),
+ .flags = CLK_SET_RATE_PARENT,
+ },
+};
+
+static struct clk_divider axg_sd_emmc_c_clk0_div = {
+ .reg = (void *)HHI_NAND_CLK_CNTL,
+ .shift = 0,
+ .width = 7,
+ .lock = &meson_clk_lock,
+ .flags = CLK_DIVIDER_ROUND_CLOSEST,
+ .hw.init = &(struct clk_init_data) {
+ .name = "sd_emmc_c_clk0_div",
+ .ops = &clk_divider_ops,
+ .parent_names = (const char *[]){ "sd_emmc_c_clk0_sel" },
+ .num_parents = 1,
+ .flags = CLK_SET_RATE_PARENT,
+ },
+};
+
+static struct clk_gate axg_sd_emmc_c_clk0 = {
+ .reg = (void *)HHI_NAND_CLK_CNTL,
+ .bit_idx = 7,
+ .lock = &meson_clk_lock,
+ .hw.init = &(struct clk_init_data){
+ .name = "sd_emmc_c_clk0",
+ .ops = &clk_gate_ops,
+ .parent_names = (const char *[]){ "sd_emmc_c_clk0_div" },
+ .num_parents = 1,
+ .flags = CLK_SET_RATE_PARENT,
+ },
+};
+
+/* Everything Else (EE) domain gates */
+static MESON_GATE(axg_ddr, HHI_GCLK_MPEG0, 0);
+static MESON_GATE(axg_audio_locker, HHI_GCLK_MPEG0, 2);
+static MESON_GATE(axg_mipi_dsi_host, HHI_GCLK_MPEG0, 3);
+static MESON_GATE(axg_isa, HHI_GCLK_MPEG0, 5);
+static MESON_GATE(axg_pl301, HHI_GCLK_MPEG0, 6);
+static MESON_GATE(axg_periphs, HHI_GCLK_MPEG0, 7);
+static MESON_GATE(axg_spicc_0, HHI_GCLK_MPEG0, 8);
+static MESON_GATE(axg_i2c, HHI_GCLK_MPEG0, 9);
+static MESON_GATE(axg_rng0, HHI_GCLK_MPEG0, 12);
+static MESON_GATE(axg_uart0, HHI_GCLK_MPEG0, 13);
+static MESON_GATE(axg_mipi_dsi_phy, HHI_GCLK_MPEG0, 14);
+static MESON_GATE(axg_spicc_1, HHI_GCLK_MPEG0, 15);
+static MESON_GATE(axg_pcie_a, HHI_GCLK_MPEG0, 16);
+static MESON_GATE(axg_pcie_b, HHI_GCLK_MPEG0, 17);
+static MESON_GATE(axg_hiu_reg, HHI_GCLK_MPEG0, 19);
+static MESON_GATE(axg_assist_misc, HHI_GCLK_MPEG0, 23);
+static MESON_GATE(axg_emmc_b, HHI_GCLK_MPEG0, 25);
+static MESON_GATE(axg_emmc_c, HHI_GCLK_MPEG0, 26);
+static MESON_GATE(axg_dma, HHI_GCLK_MPEG0, 27);
+static MESON_GATE(axg_spi, HHI_GCLK_MPEG0, 30);
+
+static MESON_GATE(axg_audio, HHI_GCLK_MPEG1, 0);
+static MESON_GATE(axg_eth_core, HHI_GCLK_MPEG1, 3);
+static MESON_GATE(axg_uart1, HHI_GCLK_MPEG1, 16);
+static MESON_GATE(axg_g2d, HHI_GCLK_MPEG1, 20);
+static MESON_GATE(axg_usb0, HHI_GCLK_MPEG1, 21);
+static MESON_GATE(axg_usb1, HHI_GCLK_MPEG1, 22);
+static MESON_GATE(axg_reset, HHI_GCLK_MPEG1, 23);
+static MESON_GATE(axg_usb_general, HHI_GCLK_MPEG1, 26);
+static MESON_GATE(axg_ahb_arb0, HHI_GCLK_MPEG1, 29);
+static MESON_GATE(axg_efuse, HHI_GCLK_MPEG1, 30);
+static MESON_GATE(axg_boot_rom, HHI_GCLK_MPEG1, 31);
+
+static MESON_GATE(axg_ahb_data_bus, HHI_GCLK_MPEG2, 1);
+static MESON_GATE(axg_ahb_ctrl_bus, HHI_GCLK_MPEG2, 2);
+static MESON_GATE(axg_usb1_to_ddr, HHI_GCLK_MPEG2, 8);
+static MESON_GATE(axg_usb0_to_ddr, HHI_GCLK_MPEG2, 9);
+static MESON_GATE(axg_mmc_pclk, HHI_GCLK_MPEG2, 11);
+static MESON_GATE(axg_vpu_intr, HHI_GCLK_MPEG2, 25);
+static MESON_GATE(axg_sec_ahb_ahb3_bridge, HHI_GCLK_MPEG2, 26);
+static MESON_GATE(axg_gic, HHI_GCLK_MPEG2, 30);
+
+/* Always On (AO) domain gates */
+
+static MESON_GATE(axg_ao_media_cpu, HHI_GCLK_AO, 0);
+static MESON_GATE(axg_ao_ahb_sram, HHI_GCLK_AO, 1);
+static MESON_GATE(axg_ao_ahb_bus, HHI_GCLK_AO, 2);
+static MESON_GATE(axg_ao_iface, HHI_GCLK_AO, 3);
+static MESON_GATE(axg_ao_i2c, HHI_GCLK_AO, 4);
+
+/* Array of all clocks provided by this provider */
+
+static struct clk_hw_onecell_data axg_hw_onecell_data = {
+ .hws = {
+ [CLKID_SYS_PLL] = &axg_sys_pll.hw,
+ [CLKID_FIXED_PLL] = &axg_fixed_pll.hw,
+ [CLKID_FCLK_DIV2] = &axg_fclk_div2.hw,
+ [CLKID_FCLK_DIV3] = &axg_fclk_div3.hw,
+ [CLKID_FCLK_DIV4] = &axg_fclk_div4.hw,
+ [CLKID_FCLK_DIV5] = &axg_fclk_div5.hw,
+ [CLKID_FCLK_DIV7] = &axg_fclk_div7.hw,
+ [CLKID_GP0_PLL] = &axg_gp0_pll.hw,
+ [CLKID_MPEG_SEL] = &axg_mpeg_clk_sel.hw,
+ [CLKID_MPEG_DIV] = &axg_mpeg_clk_div.hw,
+ [CLKID_CLK81] = &axg_clk81.hw,
+ [CLKID_MPLL0] = &axg_mpll0.hw,
+ [CLKID_MPLL1] = &axg_mpll1.hw,
+ [CLKID_MPLL2] = &axg_mpll2.hw,
+ [CLKID_MPLL3] = &axg_mpll3.hw,
+ [CLKID_DDR] = &axg_ddr.hw,
+ [CLKID_AUDIO_LOCKER] = &axg_audio_locker.hw,
+ [CLKID_MIPI_DSI_HOST] = &axg_mipi_dsi_host.hw,
+ [CLKID_ISA] = &axg_isa.hw,
+ [CLKID_PL301] = &axg_pl301.hw,
+ [CLKID_PERIPHS] = &axg_periphs.hw,
+ [CLKID_SPICC0] = &axg_spicc_0.hw,
+ [CLKID_I2C] = &axg_i2c.hw,
+ [CLKID_RNG0] = &axg_rng0.hw,
+ [CLKID_UART0] = &axg_uart0.hw,
+ [CLKID_MIPI_DSI_PHY] = &axg_mipi_dsi_phy.hw,
+ [CLKID_SPICC1] = &axg_spicc_1.hw,
+ [CLKID_PCIE_A] = &axg_pcie_a.hw,
+ [CLKID_PCIE_B] = &axg_pcie_b.hw,
+ [CLKID_HIU_IFACE] = &axg_hiu_reg.hw,
+ [CLKID_ASSIST_MISC] = &axg_assist_misc.hw,
+ [CLKID_SD_EMMC_B] = &axg_emmc_b.hw,
+ [CLKID_SD_EMMC_C] = &axg_emmc_c.hw,
+ [CLKID_DMA] = &axg_dma.hw,
+ [CLKID_SPI] = &axg_spi.hw,
+ [CLKID_AUDIO] = &axg_audio.hw,
+ [CLKID_ETH] = &axg_eth_core.hw,
+ [CLKID_UART1] = &axg_uart1.hw,
+ [CLKID_G2D] = &axg_g2d.hw,
+ [CLKID_USB0] = &axg_usb0.hw,
+ [CLKID_USB1] = &axg_usb1.hw,
+ [CLKID_RESET] = &axg_reset.hw,
+ [CLKID_USB] = &axg_usb_general.hw,
+ [CLKID_AHB_ARB0] = &axg_ahb_arb0.hw,
+ [CLKID_EFUSE] = &axg_efuse.hw,
+ [CLKID_BOOT_ROM] = &axg_boot_rom.hw,
+ [CLKID_AHB_DATA_BUS] = &axg_ahb_data_bus.hw,
+ [CLKID_AHB_CTRL_BUS] = &axg_ahb_ctrl_bus.hw,
+ [CLKID_USB1_DDR_BRIDGE] = &axg_usb1_to_ddr.hw,
+ [CLKID_USB0_DDR_BRIDGE] = &axg_usb0_to_ddr.hw,
+ [CLKID_MMC_PCLK] = &axg_mmc_pclk.hw,
+ [CLKID_VPU_INTR] = &axg_vpu_intr.hw,
+ [CLKID_SEC_AHB_AHB3_BRIDGE] = &axg_sec_ahb_ahb3_bridge.hw,
+ [CLKID_GIC] = &axg_gic.hw,
+ [CLKID_AO_MEDIA_CPU] = &axg_ao_media_cpu.hw,
+ [CLKID_AO_AHB_SRAM] = &axg_ao_ahb_sram.hw,
+ [CLKID_AO_AHB_BUS] = &axg_ao_ahb_bus.hw,
+ [CLKID_AO_IFACE] = &axg_ao_iface.hw,
+ [CLKID_AO_I2C] = &axg_ao_i2c.hw,
+ [CLKID_SD_EMMC_B_CLK0_SEL] = &axg_sd_emmc_b_clk0_sel.hw,
+ [CLKID_SD_EMMC_B_CLK0_DIV] = &axg_sd_emmc_b_clk0_div.hw,
+ [CLKID_SD_EMMC_B_CLK0] = &axg_sd_emmc_b_clk0.hw,
+ [CLKID_SD_EMMC_C_CLK0_SEL] = &axg_sd_emmc_c_clk0_sel.hw,
+ [CLKID_SD_EMMC_C_CLK0_DIV] = &axg_sd_emmc_c_clk0_div.hw,
+ [CLKID_SD_EMMC_C_CLK0] = &axg_sd_emmc_c_clk0.hw,
+ [NR_CLKS] = NULL,
+ },
+ .num = NR_CLKS,
+};
+
+/* Convenience tables to populate base addresses in .probe */
+
+static struct meson_clk_pll *const axg_clk_plls[] = {
+ &axg_fixed_pll,
+ &axg_sys_pll,
+ &axg_gp0_pll,
+};
+
+static struct meson_clk_mpll *const axg_clk_mplls[] = {
+ &axg_mpll0,
+ &axg_mpll1,
+ &axg_mpll2,
+ &axg_mpll3,
+};
+
+static struct clk_gate *const axg_clk_gates[] = {
+ &axg_clk81,
+ &axg_ddr,
+ &axg_audio_locker,
+ &axg_mipi_dsi_host,
+ &axg_isa,
+ &axg_pl301,
+ &axg_periphs,
+ &axg_spicc_0,
+ &axg_i2c,
+ &axg_rng0,
+ &axg_uart0,
+ &axg_mipi_dsi_phy,
+ &axg_spicc_1,
+ &axg_pcie_a,
+ &axg_pcie_b,
+ &axg_hiu_reg,
+ &axg_assist_misc,
+ &axg_emmc_b,
+ &axg_emmc_c,
+ &axg_dma,
+ &axg_spi,
+ &axg_audio,
+ &axg_eth_core,
+ &axg_uart1,
+ &axg_g2d,
+ &axg_usb0,
+ &axg_usb1,
+ &axg_reset,
+ &axg_usb_general,
+ &axg_ahb_arb0,
+ &axg_efuse,
+ &axg_boot_rom,
+ &axg_ahb_data_bus,
+ &axg_ahb_ctrl_bus,
+ &axg_usb1_to_ddr,
+ &axg_usb0_to_ddr,
+ &axg_mmc_pclk,
+ &axg_vpu_intr,
+ &axg_sec_ahb_ahb3_bridge,
+ &axg_gic,
+ &axg_ao_media_cpu,
+ &axg_ao_ahb_sram,
+ &axg_ao_ahb_bus,
+ &axg_ao_iface,
+ &axg_ao_i2c,
+ &axg_sd_emmc_b_clk0,
+ &axg_sd_emmc_c_clk0,
+};
+
+static struct clk_mux *const axg_clk_muxes[] = {
+ &axg_mpeg_clk_sel,
+ &axg_sd_emmc_b_clk0_sel,
+ &axg_sd_emmc_c_clk0_sel,
+};
+
+static struct clk_divider *const axg_clk_dividers[] = {
+ &axg_mpeg_clk_div,
+ &axg_sd_emmc_b_clk0_div,
+ &axg_sd_emmc_c_clk0_div,
+};
+
+struct clkc_data {
+ struct clk_gate *const *clk_gates;
+ unsigned int clk_gates_count;
+ struct meson_clk_mpll *const *clk_mplls;
+ unsigned int clk_mplls_count;
+ struct meson_clk_pll *const *clk_plls;
+ unsigned int clk_plls_count;
+ struct clk_mux *const *clk_muxes;
+ unsigned int clk_muxes_count;
+ struct clk_divider *const *clk_dividers;
+ unsigned int clk_dividers_count;
+ struct clk_hw_onecell_data *hw_onecell_data;
+};
+
+static const struct clkc_data axg_clkc_data = {
+ .clk_gates = axg_clk_gates,
+ .clk_gates_count = ARRAY_SIZE(axg_clk_gates),
+ .clk_mplls = axg_clk_mplls,
+ .clk_mplls_count = ARRAY_SIZE(axg_clk_mplls),
+ .clk_plls = axg_clk_plls,
+ .clk_plls_count = ARRAY_SIZE(axg_clk_plls),
+ .clk_muxes = axg_clk_muxes,
+ .clk_muxes_count = ARRAY_SIZE(axg_clk_muxes),
+ .clk_dividers = axg_clk_dividers,
+ .clk_dividers_count = ARRAY_SIZE(axg_clk_dividers),
+ .hw_onecell_data = &axg_hw_onecell_data,
+};
+
+static const struct of_device_id clkc_match_table[] = {
+ { .compatible = "amlogic,axg-clkc", .data = &axg_clkc_data },
+ {}
+};
+
+static int axg_clkc_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ const struct clkc_data *clkc_data;
+ struct resource *res;
+ void __iomem *clk_base;
+ int ret, clkid, i;
+
+ clkc_data = of_device_get_match_data(&pdev->dev);
+ if (!clkc_data)
+ return -EINVAL;
+
+ /* Generic clocks and PLLs */
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res)
+ return -EINVAL;
+ clk_base = devm_ioremap(&pdev->dev, res->start, resource_size(res));
+ if (!clk_base) {
+ dev_err(&pdev->dev, "Unable to map clk base\n");
+ return -ENXIO;
+ }
+
+ /* Populate base address for PLLs */
+ for (i = 0; i < clkc_data->clk_plls_count; i++)
+ clkc_data->clk_plls[i]->base = clk_base;
+
+ /* Populate base address for MPLLs */
+ for (i = 0; i < clkc_data->clk_mplls_count; i++)
+ clkc_data->clk_mplls[i]->base = clk_base;
+
+ /* Populate base address for gates */
+ for (i = 0; i < clkc_data->clk_gates_count; i++)
+ clkc_data->clk_gates[i]->reg = clk_base +
+ (u64)clkc_data->clk_gates[i]->reg;
+
+ /* Populate base address for muxes */
+ for (i = 0; i < clkc_data->clk_muxes_count; i++)
+ clkc_data->clk_muxes[i]->reg = clk_base +
+ (u64)clkc_data->clk_muxes[i]->reg;
+
+ /* Populate base address for dividers */
+ for (i = 0; i < clkc_data->clk_dividers_count; i++)
+ clkc_data->clk_dividers[i]->reg = clk_base +
+ (u64)clkc_data->clk_dividers[i]->reg;
+
+ for (clkid = 0; clkid < clkc_data->hw_onecell_data->num; clkid++) {
+ /* array might be sparse */
+ if (!clkc_data->hw_onecell_data->hws[clkid])
+ continue;
+
+ ret = devm_clk_hw_register(dev,
+ clkc_data->hw_onecell_data->hws[clkid]);
+ if (ret) {
+ dev_err(&pdev->dev, "Clock registration failed\n");
+ return ret;
+ }
+ }
+
+ return of_clk_add_hw_provider(dev->of_node, of_clk_hw_onecell_get,
+ clkc_data->hw_onecell_data);
+}
+
+static struct platform_driver axg_driver = {
+ .probe = axg_clkc_probe,
+ .driver = {
+ .name = "axg-clkc",
+ .of_match_table = clkc_match_table,
+ },
+};
+
+builtin_platform_driver(axg_driver);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.