diff options
Diffstat (limited to 'drivers/clk/sunxi-ng/ccu-sun20i-d1-r.c')
| -rw-r--r-- | drivers/clk/sunxi-ng/ccu-sun20i-d1-r.c | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/drivers/clk/sunxi-ng/ccu-sun20i-d1-r.c b/drivers/clk/sunxi-ng/ccu-sun20i-d1-r.c new file mode 100644 index 000000000..9d3ffd3fb --- /dev/null +++ b/drivers/clk/sunxi-ng/ccu-sun20i-d1-r.c @@ -0,0 +1,140 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2020 huangzhenwei@allwinnertech.com + * Copyright (C) 2021 Samuel Holland <samuel@sholland.org> + */ + +#include <linux/clk-provider.h> +#include <linux/module.h> +#include <linux/platform_device.h> + +#include "ccu_common.h" +#include "ccu_reset.h" + +#include "ccu_gate.h" +#include "ccu_mp.h" + +#include "ccu-sun20i-d1-r.h" + +static const struct clk_parent_data r_ahb_apb0_parents[] = { + { .fw_name = "hosc" }, + { .fw_name = "losc" }, + { .fw_name = "iosc" }, + { .fw_name = "pll-periph" }, +}; +static SUNXI_CCU_MP_DATA_WITH_MUX(r_ahb_clk, "r-ahb", + r_ahb_apb0_parents, 0x000, + 0, 5, /* M */ + 8, 2, /* P */ + 24, 3, /* mux */ + 0); +static const struct clk_hw *r_ahb_hw = &r_ahb_clk.common.hw; + +static SUNXI_CCU_MP_DATA_WITH_MUX(r_apb0_clk, "r-apb0", + r_ahb_apb0_parents, 0x00c, + 0, 5, /* M */ + 8, 2, /* P */ + 24, 3, /* mux */ + 0); +static const struct clk_hw *r_apb0_hw = &r_apb0_clk.common.hw; + +static SUNXI_CCU_GATE_HWS(bus_r_timer_clk, "bus-r-timer", &r_apb0_hw, + 0x11c, BIT(0), 0); +static SUNXI_CCU_GATE_HWS(bus_r_twd_clk, "bus-r-twd", &r_apb0_hw, + 0x12c, BIT(0), 0); +static SUNXI_CCU_GATE_HWS(bus_r_ppu_clk, "bus-r-ppu", &r_apb0_hw, + 0x1ac, BIT(0), 0); + +static const struct clk_parent_data r_ir_rx_parents[] = { + { .fw_name = "losc" }, + { .fw_name = "hosc" }, +}; +static SUNXI_CCU_MP_DATA_WITH_MUX_GATE(r_ir_rx_clk, "r-ir-rx", + r_ir_rx_parents, 0x1c0, + 0, 5, /* M */ + 8, 2, /* P */ + 24, 2, /* mux */ + BIT(31), /* gate */ + 0); + +static SUNXI_CCU_GATE_HWS(bus_r_ir_rx_clk, "bus-r-ir-rx", &r_apb0_hw, + 0x1cc, BIT(0), 0); +static SUNXI_CCU_GATE_HWS(bus_r_rtc_clk, "bus-r-rtc", &r_ahb_hw, + 0x20c, BIT(0), 0); +static SUNXI_CCU_GATE_HWS(bus_r_cpucfg_clk, "bus-r-cpucfg", &r_apb0_hw, + 0x22c, BIT(0), 0); + +static struct ccu_common *sun20i_d1_r_ccu_clks[] = { + &r_ahb_clk.common, + &r_apb0_clk.common, + &bus_r_timer_clk.common, + &bus_r_twd_clk.common, + &bus_r_ppu_clk.common, + &r_ir_rx_clk.common, + &bus_r_ir_rx_clk.common, + &bus_r_rtc_clk.common, + &bus_r_cpucfg_clk.common, +}; + +static struct clk_hw_onecell_data sun20i_d1_r_hw_clks = { + .num = CLK_NUMBER, + .hws = { + [CLK_R_AHB] = &r_ahb_clk.common.hw, + [CLK_R_APB0] = &r_apb0_clk.common.hw, + [CLK_BUS_R_TIMER] = &bus_r_timer_clk.common.hw, + [CLK_BUS_R_TWD] = &bus_r_twd_clk.common.hw, + [CLK_BUS_R_PPU] = &bus_r_ppu_clk.common.hw, + [CLK_R_IR_RX] = &r_ir_rx_clk.common.hw, + [CLK_BUS_R_IR_RX] = &bus_r_ir_rx_clk.common.hw, + [CLK_BUS_R_RTC] = &bus_r_rtc_clk.common.hw, + [CLK_BUS_R_CPUCFG] = &bus_r_cpucfg_clk.common.hw, + }, +}; + +static struct ccu_reset_map sun20i_d1_r_ccu_resets[] = { + [RST_BUS_R_TIMER] = { 0x11c, BIT(16) }, + [RST_BUS_R_TWD] = { 0x12c, BIT(16) }, + [RST_BUS_R_PPU] = { 0x1ac, BIT(16) }, + [RST_BUS_R_IR_RX] = { 0x1cc, BIT(16) }, + [RST_BUS_R_RTC] = { 0x20c, BIT(16) }, + [RST_BUS_R_CPUCFG] = { 0x22c, BIT(16) }, +}; + +static const struct sunxi_ccu_desc sun20i_d1_r_ccu_desc = { + .ccu_clks = sun20i_d1_r_ccu_clks, + .num_ccu_clks = ARRAY_SIZE(sun20i_d1_r_ccu_clks), + + .hw_clks = &sun20i_d1_r_hw_clks, + + .resets = sun20i_d1_r_ccu_resets, + .num_resets = ARRAY_SIZE(sun20i_d1_r_ccu_resets), +}; + +static int sun20i_d1_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 devm_sunxi_ccu_probe(&pdev->dev, reg, &sun20i_d1_r_ccu_desc); +} + +static const struct of_device_id sun20i_d1_r_ccu_ids[] = { + { .compatible = "allwinner,sun20i-d1-r-ccu" }, + { } +}; + +static struct platform_driver sun20i_d1_r_ccu_driver = { + .probe = sun20i_d1_r_ccu_probe, + .driver = { + .name = "sun20i-d1-r-ccu", + .suppress_bind_attrs = true, + .of_match_table = sun20i_d1_r_ccu_ids, + }, +}; +module_platform_driver(sun20i_d1_r_ccu_driver); + +MODULE_IMPORT_NS(SUNXI_CCU); +MODULE_LICENSE("GPL"); |