clk: sunxi-ng: add support for the Allwinner A100 CCU
Add support for a100 in the sunxi-ng CCU framework.
Signed-off-by: Yangtao Li <frank@allwinnertech.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/1eb41bf6c966a0e54820200650d27a5d4f2ac160.1595572867.git.frank@allwinnertech.com
diff --git a/drivers/clk/sunxi-ng/ccu-sun50i-a100-r.c b/drivers/clk/sunxi-ng/ccu-sun50i-a100-r.c
new file mode 100644
index 0000000..a56142b
--- /dev/null
+++ b/drivers/clk/sunxi-ng/ccu-sun50i-a100-r.c
@@ -0,0 +1,214 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2020 Yangtao Li <frank@allwinnertech.com>
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/module.h>
+#include <linux/of_address.h>
+#include <linux/platform_device.h>
+
+#include "ccu_common.h"
+#include "ccu_reset.h"
+
+#include "ccu_div.h"
+#include "ccu_gate.h"
+#include "ccu_mp.h"
+#include "ccu_nm.h"
+
+#include "ccu-sun50i-a100-r.h"
+
+static const char * const cpus_r_apb2_parents[] = { "dcxo24M", "osc32k",
+ "iosc", "pll-periph0" };
+static const struct ccu_mux_var_prediv cpus_r_apb2_predivs[] = {
+ { .index = 3, .shift = 0, .width = 5 },
+};
+
+static struct ccu_div r_cpus_clk = {
+ .div = _SUNXI_CCU_DIV_FLAGS(8, 2, CLK_DIVIDER_POWER_OF_TWO),
+
+ .mux = {
+ .shift = 24,
+ .width = 2,
+
+ .var_predivs = cpus_r_apb2_predivs,
+ .n_var_predivs = ARRAY_SIZE(cpus_r_apb2_predivs),
+ },
+
+ .common = {
+ .reg = 0x000,
+ .features = CCU_FEATURE_VARIABLE_PREDIV,
+ .hw.init = CLK_HW_INIT_PARENTS("cpus",
+ cpus_r_apb2_parents,
+ &ccu_div_ops,
+ 0),
+ },
+};
+
+static CLK_FIXED_FACTOR_HW(r_ahb_clk, "r-ahb", &r_cpus_clk.common.hw, 1, 1, 0);
+
+static struct ccu_div r_apb1_clk = {
+ .div = _SUNXI_CCU_DIV(0, 2),
+
+ .common = {
+ .reg = 0x00c,
+ .hw.init = CLK_HW_INIT("r-apb1",
+ "r-ahb",
+ &ccu_div_ops,
+ 0),
+ },
+};
+
+static struct ccu_div r_apb2_clk = {
+ .div = _SUNXI_CCU_DIV_FLAGS(8, 2, CLK_DIVIDER_POWER_OF_TWO),
+
+ .mux = {
+ .shift = 24,
+ .width = 2,
+
+ .var_predivs = cpus_r_apb2_predivs,
+ .n_var_predivs = ARRAY_SIZE(cpus_r_apb2_predivs),
+ },
+
+ .common = {
+ .reg = 0x010,
+ .features = CCU_FEATURE_VARIABLE_PREDIV,
+ .hw.init = CLK_HW_INIT_PARENTS("r-apb2",
+ cpus_r_apb2_parents,
+ &ccu_div_ops,
+ 0),
+ },
+};
+
+static const struct clk_parent_data clk_parent_r_apb1[] = {
+ { .hw = &r_apb1_clk.common.hw },
+};
+
+static const struct clk_parent_data clk_parent_r_apb2[] = {
+ { .hw = &r_apb2_clk.common.hw },
+};
+
+static SUNXI_CCU_GATE_DATA(r_apb1_timer_clk, "r-apb1-timer", clk_parent_r_apb1,
+ 0x11c, BIT(0), 0);
+
+static SUNXI_CCU_GATE_DATA(r_apb1_twd_clk, "r-apb1-twd", clk_parent_r_apb1,
+ 0x12c, BIT(0), 0);
+
+static const char * const r_apb1_pwm_clk_parents[] = { "dcxo24M", "osc32k",
+ "iosc" };
+static SUNXI_CCU_MUX(r_apb1_pwm_clk, "r-apb1-pwm", r_apb1_pwm_clk_parents,
+ 0x130, 24, 2, 0);
+
+static SUNXI_CCU_GATE_DATA(r_apb1_bus_pwm_clk, "r-apb1-bus-pwm",
+ clk_parent_r_apb1, 0x13c, BIT(0), 0);
+
+static SUNXI_CCU_GATE_DATA(r_apb1_ppu_clk, "r-apb1-ppu", clk_parent_r_apb1,
+ 0x17c, BIT(0), 0);
+
+static SUNXI_CCU_GATE_DATA(r_apb2_uart_clk, "r-apb2-uart", clk_parent_r_apb2,
+ 0x18c, BIT(0), 0);
+
+static SUNXI_CCU_GATE_DATA(r_apb2_i2c0_clk, "r-apb2-i2c0", clk_parent_r_apb2,
+ 0x19c, BIT(0), 0);
+
+static SUNXI_CCU_GATE_DATA(r_apb2_i2c1_clk, "r-apb2-i2c1", clk_parent_r_apb2,
+ 0x19c, BIT(1), 0);
+
+static const char * const r_apb1_ir_rx_parents[] = { "osc32k", "dcxo24M" };
+static SUNXI_CCU_MP_WITH_MUX_GATE(r_apb1_ir_rx_clk, "r-apb1-ir-rx",
+ r_apb1_ir_rx_parents, 0x1c0,
+ 0, 5, /* M */
+ 8, 2, /* P */
+ 24, 1, /* mux */
+ BIT(31), /* gate */
+ 0);
+
+static SUNXI_CCU_GATE_DATA(r_apb1_bus_ir_rx_clk, "r-apb1-bus-ir-rx",
+ clk_parent_r_apb1, 0x1cc, BIT(0), 0);
+
+static SUNXI_CCU_GATE(r_ahb_bus_rtc_clk, "r-ahb-rtc", "r-ahb",
+ 0x20c, BIT(0), 0);
+
+static struct ccu_common *sun50i_a100_r_ccu_clks[] = {
+ &r_cpus_clk.common,
+ &r_apb1_clk.common,
+ &r_apb2_clk.common,
+ &r_apb1_timer_clk.common,
+ &r_apb1_twd_clk.common,
+ &r_apb1_pwm_clk.common,
+ &r_apb1_bus_pwm_clk.common,
+ &r_apb1_ppu_clk.common,
+ &r_apb2_uart_clk.common,
+ &r_apb2_i2c0_clk.common,
+ &r_apb2_i2c1_clk.common,
+ &r_apb1_ir_rx_clk.common,
+ &r_apb1_bus_ir_rx_clk.common,
+ &r_ahb_bus_rtc_clk.common,
+};
+
+static struct clk_hw_onecell_data sun50i_a100_r_hw_clks = {
+ .hws = {
+ [CLK_R_CPUS] = &r_cpus_clk.common.hw,
+ [CLK_R_AHB] = &r_ahb_clk.hw,
+ [CLK_R_APB1] = &r_apb1_clk.common.hw,
+ [CLK_R_APB2] = &r_apb2_clk.common.hw,
+ [CLK_R_APB1_TIMER] = &r_apb1_timer_clk.common.hw,
+ [CLK_R_APB1_TWD] = &r_apb1_twd_clk.common.hw,
+ [CLK_R_APB1_PWM] = &r_apb1_pwm_clk.common.hw,
+ [CLK_R_APB1_BUS_PWM] = &r_apb1_bus_pwm_clk.common.hw,
+ [CLK_R_APB1_PPU] = &r_apb1_ppu_clk.common.hw,
+ [CLK_R_APB2_UART] = &r_apb2_uart_clk.common.hw,
+ [CLK_R_APB2_I2C0] = &r_apb2_i2c0_clk.common.hw,
+ [CLK_R_APB2_I2C1] = &r_apb2_i2c1_clk.common.hw,
+ [CLK_R_APB1_IR] = &r_apb1_ir_rx_clk.common.hw,
+ [CLK_R_APB1_BUS_IR] = &r_apb1_bus_ir_rx_clk.common.hw,
+ [CLK_R_AHB_BUS_RTC] = &r_ahb_bus_rtc_clk.common.hw,
+ },
+ .num = CLK_NUMBER,
+};
+
+static struct ccu_reset_map sun50i_a100_r_ccu_resets[] = {
+ [RST_R_APB1_TIMER] = { 0x11c, BIT(16) },
+ [RST_R_APB1_BUS_PWM] = { 0x13c, BIT(16) },
+ [RST_R_APB1_PPU] = { 0x17c, BIT(16) },
+ [RST_R_APB2_UART] = { 0x18c, BIT(16) },
+ [RST_R_APB2_I2C0] = { 0x19c, BIT(16) },
+ [RST_R_APB2_I2C1] = { 0x19c, BIT(17) },
+ [RST_R_APB1_BUS_IR] = { 0x1cc, BIT(16) },
+ [RST_R_AHB_BUS_RTC] = { 0x20c, BIT(16) },
+};
+
+static const struct sunxi_ccu_desc sun50i_a100_r_ccu_desc = {
+ .ccu_clks = sun50i_a100_r_ccu_clks,
+ .num_ccu_clks = ARRAY_SIZE(sun50i_a100_r_ccu_clks),
+
+ .hw_clks = &sun50i_a100_r_hw_clks,
+
+ .resets = sun50i_a100_r_ccu_resets,
+ .num_resets = ARRAY_SIZE(sun50i_a100_r_ccu_resets),
+};
+
+static int sun50i_a100_r_ccu_probe(struct platform_device *pdev)
+{
+ void __iomem *reg;
+
+ reg = devm_platform_ioremap_resource(pdev, 0);
+ if (IS_ERR(reg))
+ return PTR_ERR(reg);
+
+ return sunxi_ccu_probe(pdev->dev.of_node, reg, &sun50i_a100_r_ccu_desc);
+}
+
+static const struct of_device_id sun50i_a100_r_ccu_ids[] = {
+ { .compatible = "allwinner,sun50i-a100-r-ccu" },
+ { }
+};
+
+static struct platform_driver sun50i_a100_r_ccu_driver = {
+ .probe = sun50i_a100_r_ccu_probe,
+ .driver = {
+ .name = "sun50i-a100-r-ccu",
+ .of_match_table = sun50i_a100_r_ccu_ids,
+ },
+};
+module_platform_driver(sun50i_a100_r_ccu_driver);