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path: root/drivers/clk/rockchip/clk-rk3399.c
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Diffstat (limited to 'drivers/clk/rockchip/clk-rk3399.c')
-rw-r--r--drivers/clk/rockchip/clk-rk3399.c117
1 files changed, 80 insertions, 37 deletions
diff --git a/drivers/clk/rockchip/clk-rk3399.c b/drivers/clk/rockchip/clk-rk3399.c
index 5a628148f3f0..c2b243d7a5e2 100644
--- a/drivers/clk/rockchip/clk-rk3399.c
+++ b/drivers/clk/rockchip/clk-rk3399.c
@@ -1,22 +1,16 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (c) 2016 Rockchip Electronics Co. Ltd.
* Author: Xing Zheng <zhengxing@rock-chips.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
*/
#include <linux/clk-provider.h>
+#include <linux/module.h>
+#include <linux/io.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/platform_device.h>
+#include <linux/property.h>
#include <linux/regmap.h>
#include <dt-bindings/clock/rk3399-cru.h>
#include "clk.h"
@@ -297,9 +291,10 @@ static struct rockchip_clk_branch rk3399_pmuclk_wifi_fracmux __initdata =
RK3399_PMU_CLKSEL_CON(1), 14, 1, MFLAGS);
static const struct rockchip_cpuclk_reg_data rk3399_cpuclkl_data = {
- .core_reg = RK3399_CLKSEL_CON(0),
- .div_core_shift = 0,
- .div_core_mask = 0x1f,
+ .core_reg[0] = RK3399_CLKSEL_CON(0),
+ .div_core_shift[0] = 0,
+ .div_core_mask[0] = 0x1f,
+ .num_cores = 1,
.mux_core_alt = 3,
.mux_core_main = 0,
.mux_core_shift = 6,
@@ -307,9 +302,10 @@ static const struct rockchip_cpuclk_reg_data rk3399_cpuclkl_data = {
};
static const struct rockchip_cpuclk_reg_data rk3399_cpuclkb_data = {
- .core_reg = RK3399_CLKSEL_CON(2),
- .div_core_shift = 0,
- .div_core_mask = 0x1f,
+ .core_reg[0] = RK3399_CLKSEL_CON(2),
+ .div_core_shift[0] = 0,
+ .div_core_mask[0] = 0x1f,
+ .num_cores = 1,
.mux_core_alt = 3,
.mux_core_main = 1,
.mux_core_shift = 6,
@@ -485,7 +481,7 @@ static struct rockchip_clk_branch rk3399_clk_branches[] __initdata = {
COMPOSITE_NOMUX(0, "atclk_core_l", "armclkl", CLK_IGNORE_UNUSED,
RK3399_CLKSEL_CON(1), 0, 5, DFLAGS | CLK_DIVIDER_READ_ONLY,
RK3399_CLKGATE_CON(0), 5, GFLAGS),
- COMPOSITE_NOMUX(0, "pclk_dbg_core_l", "armclkl", CLK_IGNORE_UNUSED,
+ COMPOSITE_NOMUX(PCLK_COREDBG_L, "pclk_dbg_core_l", "armclkl", CLK_IGNORE_UNUSED,
RK3399_CLKSEL_CON(1), 8, 5, DFLAGS | CLK_DIVIDER_READ_ONLY,
RK3399_CLKGATE_CON(0), 6, GFLAGS),
@@ -535,7 +531,7 @@ static struct rockchip_clk_branch rk3399_clk_branches[] __initdata = {
GATE(ACLK_GIC_ADB400_CORE_B_2_GIC, "aclk_core_adb400_core_b_2_gic", "armclkb", CLK_IGNORE_UNUSED,
RK3399_CLKGATE_CON(14), 4, GFLAGS),
- DIV(0, "pclken_dbg_core_b", "pclk_dbg_core_b", CLK_IGNORE_UNUSED,
+ DIV(PCLK_COREDBG_B, "pclken_dbg_core_b", "pclk_dbg_core_b", CLK_IGNORE_UNUSED,
RK3399_CLKSEL_CON(3), 13, 2, DFLAGS | CLK_DIVIDER_READ_ONLY),
GATE(0, "pclk_dbg_cxcs_pd_core_b", "pclk_dbg_core_b", CLK_IGNORE_UNUSED,
@@ -601,7 +597,7 @@ static struct rockchip_clk_branch rk3399_clk_branches[] __initdata = {
COMPOSITE(0, "clk_i2s0_div", mux_pll_src_cpll_gpll_p, 0,
RK3399_CLKSEL_CON(28), 7, 1, MFLAGS, 0, 7, DFLAGS,
RK3399_CLKGATE_CON(8), 3, GFLAGS),
- COMPOSITE_FRACMUX(0, "clk_i2s0_frac", "clk_i2s0_div", 0,
+ COMPOSITE_FRACMUX(0, "clk_i2s0_frac", "clk_i2s0_div", CLK_SET_RATE_PARENT,
RK3399_CLKSEL_CON(96), 0,
RK3399_CLKGATE_CON(8), 4, GFLAGS,
&rk3399_i2s0_fracmux),
@@ -611,7 +607,7 @@ static struct rockchip_clk_branch rk3399_clk_branches[] __initdata = {
COMPOSITE(0, "clk_i2s1_div", mux_pll_src_cpll_gpll_p, 0,
RK3399_CLKSEL_CON(29), 7, 1, MFLAGS, 0, 7, DFLAGS,
RK3399_CLKGATE_CON(8), 6, GFLAGS),
- COMPOSITE_FRACMUX(0, "clk_i2s1_frac", "clk_i2s1_div", 0,
+ COMPOSITE_FRACMUX(0, "clk_i2s1_frac", "clk_i2s1_div", CLK_SET_RATE_PARENT,
RK3399_CLKSEL_CON(97), 0,
RK3399_CLKGATE_CON(8), 7, GFLAGS,
&rk3399_i2s1_fracmux),
@@ -621,7 +617,7 @@ static struct rockchip_clk_branch rk3399_clk_branches[] __initdata = {
COMPOSITE(0, "clk_i2s2_div", mux_pll_src_cpll_gpll_p, 0,
RK3399_CLKSEL_CON(30), 7, 1, MFLAGS, 0, 7, DFLAGS,
RK3399_CLKGATE_CON(8), 9, GFLAGS),
- COMPOSITE_FRACMUX(0, "clk_i2s2_frac", "clk_i2s2_div", 0,
+ COMPOSITE_FRACMUX(0, "clk_i2s2_frac", "clk_i2s2_div", CLK_SET_RATE_PARENT,
RK3399_CLKSEL_CON(98), 0,
RK3399_CLKGATE_CON(8), 10, GFLAGS,
&rk3399_i2s2_fracmux),
@@ -1267,7 +1263,7 @@ static struct rockchip_clk_branch rk3399_clk_branches[] __initdata = {
RK3399_CLKSEL_CON(56), 6, 2, MFLAGS,
RK3399_CLKGATE_CON(10), 7, GFLAGS),
- COMPOSITE_NOGATE(SCLK_CIF_OUT, "clk_cifout", mux_clk_cif_p, 0,
+ COMPOSITE_NOGATE(SCLK_CIF_OUT, "clk_cifout", mux_clk_cif_p, CLK_SET_RATE_PARENT,
RK3399_CLKSEL_CON(56), 5, 1, MFLAGS, 0, 5, DFLAGS),
/* gic */
@@ -1303,6 +1299,9 @@ static struct rockchip_clk_branch rk3399_clk_branches[] __initdata = {
GATE(PCLK_PMU_INTR_ARB, "pclk_pmu_intr_arb", "pclk_alive", CLK_IGNORE_UNUSED, RK3399_CLKGATE_CON(31), 9, GFLAGS),
GATE(PCLK_SGRF, "pclk_sgrf", "pclk_alive", CLK_IGNORE_UNUSED, RK3399_CLKGATE_CON(31), 10, GFLAGS),
+ /* Watchdog pclk is controlled by RK3399 SECURE_GRF_SOC_CON3[8]. */
+ SGRF_GATE(PCLK_WDT, "pclk_wdt", "pclk_alive"),
+
GATE(SCLK_MIPIDPHY_REF, "clk_mipidphy_ref", "xin24m", 0, RK3399_CLKGATE_CON(11), 14, GFLAGS),
GATE(SCLK_DPHY_PLL, "clk_dphy_pll", "clk_mipidphy_ref", CLK_IGNORE_UNUSED, RK3399_CLKGATE_CON(21), 0, GFLAGS),
@@ -1515,7 +1514,10 @@ static const char *const rk3399_cru_critical_clocks[] __initconst = {
"aclk_vio_noc",
/* ddrc */
- "sclk_ddrc"
+ "sclk_ddrc",
+
+ "armclkl",
+ "armclkb",
};
static const char *const rk3399_pmucru_critical_clocks[] __initconst = {
@@ -1529,8 +1531,8 @@ static const char *const rk3399_pmucru_critical_clocks[] __initconst = {
static void __init rk3399_clk_init(struct device_node *np)
{
struct rockchip_clk_provider *ctx;
+ unsigned long clk_nr_clks;
void __iomem *reg_base;
- struct clk *clk;
reg_base = of_iomap(np, 0);
if (!reg_base) {
@@ -1538,30 +1540,21 @@ static void __init rk3399_clk_init(struct device_node *np)
return;
}
- ctx = rockchip_clk_init(np, reg_base, CLK_NR_CLKS);
+ clk_nr_clks = rockchip_clk_find_max_clk_id(rk3399_clk_branches,
+ ARRAY_SIZE(rk3399_clk_branches)) + 1;
+ ctx = rockchip_clk_init(np, reg_base, clk_nr_clks);
if (IS_ERR(ctx)) {
pr_err("%s: rockchip clk init failed\n", __func__);
iounmap(reg_base);
return;
}
- /* Watchdog pclk is controlled by RK3399 SECURE_GRF_SOC_CON3[8]. */
- clk = clk_register_fixed_factor(NULL, "pclk_wdt", "pclk_alive", 0, 1, 1);
- if (IS_ERR(clk))
- pr_warn("%s: could not register clock pclk_wdt: %ld\n",
- __func__, PTR_ERR(clk));
- else
- rockchip_clk_add_lookup(ctx, clk, PCLK_WDT);
-
rockchip_clk_register_plls(ctx, rk3399_pll_clks,
ARRAY_SIZE(rk3399_pll_clks), -1);
rockchip_clk_register_branches(ctx, rk3399_clk_branches,
ARRAY_SIZE(rk3399_clk_branches));
- rockchip_clk_protect_critical(rk3399_cru_critical_clocks,
- ARRAY_SIZE(rk3399_cru_critical_clocks));
-
rockchip_clk_register_armclk(ctx, ARMCLKL, "armclkl",
mux_armclkl_p, ARRAY_SIZE(mux_armclkl_p),
&rk3399_cpuclkl_data, rk3399_cpuclkl_rates,
@@ -1572,6 +1565,9 @@ static void __init rk3399_clk_init(struct device_node *np)
&rk3399_cpuclkb_data, rk3399_cpuclkb_rates,
ARRAY_SIZE(rk3399_cpuclkb_rates));
+ rockchip_clk_protect_critical(rk3399_cru_critical_clocks,
+ ARRAY_SIZE(rk3399_cru_critical_clocks));
+
rockchip_register_softrst(np, 21, reg_base + RK3399_SOFTRST_CON(0),
ROCKCHIP_SOFTRST_HIWORD_MASK);
@@ -1584,6 +1580,7 @@ CLK_OF_DECLARE(rk3399_cru, "rockchip,rk3399-cru", rk3399_clk_init);
static void __init rk3399_pmu_clk_init(struct device_node *np)
{
struct rockchip_clk_provider *ctx;
+ unsigned long clkpmu_nr_clks;
void __iomem *reg_base;
reg_base = of_iomap(np, 0);
@@ -1592,7 +1589,9 @@ static void __init rk3399_pmu_clk_init(struct device_node *np)
return;
}
- ctx = rockchip_clk_init(np, reg_base, CLKPMU_NR_CLKS);
+ clkpmu_nr_clks = rockchip_clk_find_max_clk_id(rk3399_clk_pmu_branches,
+ ARRAY_SIZE(rk3399_clk_pmu_branches)) + 1;
+ ctx = rockchip_clk_init(np, reg_base, clkpmu_nr_clks);
if (IS_ERR(ctx)) {
pr_err("%s: rockchip pmu clk init failed\n", __func__);
iounmap(reg_base);
@@ -1614,3 +1613,47 @@ static void __init rk3399_pmu_clk_init(struct device_node *np)
rockchip_clk_of_add_provider(np, ctx);
}
CLK_OF_DECLARE(rk3399_cru_pmu, "rockchip,rk3399-pmucru", rk3399_pmu_clk_init);
+
+struct clk_rk3399_inits {
+ void (*inits)(struct device_node *np);
+};
+
+static const struct clk_rk3399_inits clk_rk3399_pmucru_init = {
+ .inits = rk3399_pmu_clk_init,
+};
+
+static const struct clk_rk3399_inits clk_rk3399_cru_init = {
+ .inits = rk3399_clk_init,
+};
+
+static const struct of_device_id clk_rk3399_match_table[] = {
+ {
+ .compatible = "rockchip,rk3399-cru",
+ .data = &clk_rk3399_cru_init,
+ }, {
+ .compatible = "rockchip,rk3399-pmucru",
+ .data = &clk_rk3399_pmucru_init,
+ },
+ { }
+};
+
+static int __init clk_rk3399_probe(struct platform_device *pdev)
+{
+ struct device_node *np = pdev->dev.of_node;
+ const struct clk_rk3399_inits *init_data;
+
+ init_data = device_get_match_data(&pdev->dev);
+ if (init_data->inits)
+ init_data->inits(np);
+
+ return 0;
+}
+
+static struct platform_driver clk_rk3399_driver = {
+ .driver = {
+ .name = "clk-rk3399",
+ .of_match_table = clk_rk3399_match_table,
+ .suppress_bind_attrs = true,
+ },
+};
+builtin_platform_driver_probe(clk_rk3399_driver, clk_rk3399_probe);
generated by cgit (git 2.34.1) at 2025-12-25 23:55:45 +0000