diff options
Diffstat (limited to 'drivers/clk/mediatek/clk-mt6735-pericfg.c')
| -rw-r--r-- | drivers/clk/mediatek/clk-mt6735-pericfg.c | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/drivers/clk/mediatek/clk-mt6735-pericfg.c b/drivers/clk/mediatek/clk-mt6735-pericfg.c new file mode 100644 index 000000000000..cbdf6d25c1b2 --- /dev/null +++ b/drivers/clk/mediatek/clk-mt6735-pericfg.c @@ -0,0 +1,124 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2022 Yassine Oudjana <y.oudjana@protonmail.com> + */ + +#include <linux/clk-provider.h> +#include <linux/platform_device.h> + +#include "clk-gate.h" +#include "clk-mtk.h" + +#include <dt-bindings/clock/mediatek,mt6735-pericfg.h> +#include <dt-bindings/reset/mediatek,mt6735-pericfg.h> + +#define PERI_GLOBALCON_RST0 0x00 +#define PERI_GLOBALCON_RST1 0x04 +#define PERI_GLOBALCON_PDN0_SET 0x08 +#define PERI_GLOBALCON_PDN0_CLR 0x10 +#define PERI_GLOBALCON_PDN0_STA 0x18 + +#define RST_NR_PER_BANK 32 + +static struct mtk_gate_regs peri_cg_regs = { + .set_ofs = PERI_GLOBALCON_PDN0_SET, + .clr_ofs = PERI_GLOBALCON_PDN0_CLR, + .sta_ofs = PERI_GLOBALCON_PDN0_STA, +}; + +static const struct mtk_gate pericfg_gates[] = { + GATE_MTK(CLK_PERI_DISP_PWM, "disp_pwm", "disppwm_sel", &peri_cg_regs, 0, &mtk_clk_gate_ops_setclr), + GATE_MTK(CLK_PERI_THERM, "therm", "axi_sel", &peri_cg_regs, 1, &mtk_clk_gate_ops_setclr), + GATE_MTK(CLK_PERI_PWM1, "pwm1", "axi_sel", &peri_cg_regs, 2, &mtk_clk_gate_ops_setclr), + GATE_MTK(CLK_PERI_PWM2, "pwm2", "axi_sel", &peri_cg_regs, 3, &mtk_clk_gate_ops_setclr), + GATE_MTK(CLK_PERI_PWM3, "pwm3", "axi_sel", &peri_cg_regs, 4, &mtk_clk_gate_ops_setclr), + GATE_MTK(CLK_PERI_PWM4, "pwm4", "axi_sel", &peri_cg_regs, 5, &mtk_clk_gate_ops_setclr), + GATE_MTK(CLK_PERI_PWM5, "pwm5", "axi_sel", &peri_cg_regs, 6, &mtk_clk_gate_ops_setclr), + GATE_MTK(CLK_PERI_PWM6, "pwm6", "axi_sel", &peri_cg_regs, 7, &mtk_clk_gate_ops_setclr), + GATE_MTK(CLK_PERI_PWM7, "pwm7", "axi_sel", &peri_cg_regs, 8, &mtk_clk_gate_ops_setclr), + GATE_MTK(CLK_PERI_PWM, "pwm", "axi_sel", &peri_cg_regs, 9, &mtk_clk_gate_ops_setclr), + GATE_MTK(CLK_PERI_USB0, "usb0", "usb20_sel", &peri_cg_regs, 10, &mtk_clk_gate_ops_setclr), + GATE_MTK(CLK_PERI_IRDA, "irda", "irda_sel", &peri_cg_regs, 11, &mtk_clk_gate_ops_setclr), + GATE_MTK(CLK_PERI_APDMA, "apdma", "axi_sel", &peri_cg_regs, 12, &mtk_clk_gate_ops_setclr), + GATE_MTK(CLK_PERI_MSDC30_0, "msdc30_0", "msdc30_0_sel", &peri_cg_regs, 13, &mtk_clk_gate_ops_setclr), + GATE_MTK(CLK_PERI_MSDC30_1, "msdc30_1", "msdc30_1_sel", &peri_cg_regs, 14, &mtk_clk_gate_ops_setclr), + GATE_MTK(CLK_PERI_MSDC30_2, "msdc30_2", "msdc30_2_sel", &peri_cg_regs, 15, &mtk_clk_gate_ops_setclr), + GATE_MTK(CLK_PERI_MSDC30_3, "msdc30_3", "msdc30_3_sel", &peri_cg_regs, 16, &mtk_clk_gate_ops_setclr), + GATE_MTK(CLK_PERI_UART0, "uart0", "uart_sel", &peri_cg_regs, 17, &mtk_clk_gate_ops_setclr), + GATE_MTK(CLK_PERI_UART1, "uart1", "uart_sel", &peri_cg_regs, 18, &mtk_clk_gate_ops_setclr), + GATE_MTK(CLK_PERI_UART2, "uart2", "uart_sel", &peri_cg_regs, 19, &mtk_clk_gate_ops_setclr), + GATE_MTK(CLK_PERI_UART3, "uart3", "uart_sel", &peri_cg_regs, 20, &mtk_clk_gate_ops_setclr), + GATE_MTK(CLK_PERI_UART4, "uart4", "uart_sel", &peri_cg_regs, 21, &mtk_clk_gate_ops_setclr), + GATE_MTK(CLK_PERI_BTIF, "btif", "axi_sel", &peri_cg_regs, 22, &mtk_clk_gate_ops_setclr), + GATE_MTK(CLK_PERI_I2C0, "i2c0", "axi_sel", &peri_cg_regs, 23, &mtk_clk_gate_ops_setclr), + GATE_MTK(CLK_PERI_I2C1, "i2c1", "axi_sel", &peri_cg_regs, 24, &mtk_clk_gate_ops_setclr), + GATE_MTK(CLK_PERI_I2C2, "i2c2", "axi_sel", &peri_cg_regs, 25, &mtk_clk_gate_ops_setclr), + GATE_MTK(CLK_PERI_I2C3, "i2c3", "axi_sel", &peri_cg_regs, 26, &mtk_clk_gate_ops_setclr), + GATE_MTK(CLK_PERI_AUXADC, "auxadc", "axi_sel", &peri_cg_regs, 27, &mtk_clk_gate_ops_setclr), + GATE_MTK(CLK_PERI_SPI0, "spi0", "spi_sel", &peri_cg_regs, 28, &mtk_clk_gate_ops_setclr), + GATE_MTK(CLK_PERI_IRTX, "irtx", "irtx_sel", &peri_cg_regs, 29, &mtk_clk_gate_ops_setclr) +}; + +static u16 pericfg_rst_bank_ofs[] = { PERI_GLOBALCON_RST0, PERI_GLOBALCON_RST1 }; + +static u16 pericfg_rst_idx_map[] = { + [MT6735_PERI_RST0_UART0] = 0 * RST_NR_PER_BANK + 0, + [MT6735_PERI_RST0_UART1] = 0 * RST_NR_PER_BANK + 1, + [MT6735_PERI_RST0_UART2] = 0 * RST_NR_PER_BANK + 2, + [MT6735_PERI_RST0_UART3] = 0 * RST_NR_PER_BANK + 3, + [MT6735_PERI_RST0_UART4] = 0 * RST_NR_PER_BANK + 4, + [MT6735_PERI_RST0_BTIF] = 0 * RST_NR_PER_BANK + 6, + [MT6735_PERI_RST0_DISP_PWM_PERI] = 0 * RST_NR_PER_BANK + 7, + [MT6735_PERI_RST0_PWM] = 0 * RST_NR_PER_BANK + 8, + [MT6735_PERI_RST0_AUXADC] = 0 * RST_NR_PER_BANK + 10, + [MT6735_PERI_RST0_DMA] = 0 * RST_NR_PER_BANK + 11, + [MT6735_PERI_RST0_IRDA] = 0 * RST_NR_PER_BANK + 12, + [MT6735_PERI_RST0_IRTX] = 0 * RST_NR_PER_BANK + 13, + [MT6735_PERI_RST0_THERM] = 0 * RST_NR_PER_BANK + 16, + [MT6735_PERI_RST0_MSDC2] = 0 * RST_NR_PER_BANK + 17, + [MT6735_PERI_RST0_MSDC3] = 0 * RST_NR_PER_BANK + 18, + [MT6735_PERI_RST0_MSDC0] = 0 * RST_NR_PER_BANK + 19, + [MT6735_PERI_RST0_MSDC1] = 0 * RST_NR_PER_BANK + 20, + [MT6735_PERI_RST0_I2C0] = 0 * RST_NR_PER_BANK + 22, + [MT6735_PERI_RST0_I2C1] = 0 * RST_NR_PER_BANK + 23, + [MT6735_PERI_RST0_I2C2] = 0 * RST_NR_PER_BANK + 24, + [MT6735_PERI_RST0_I2C3] = 0 * RST_NR_PER_BANK + 25, + [MT6735_PERI_RST0_USB] = 0 * RST_NR_PER_BANK + 28, + + [MT6735_PERI_RST1_SPI0] = 1 * RST_NR_PER_BANK + 1, +}; + +static const struct mtk_clk_rst_desc pericfg_resets = { + .version = MTK_RST_SIMPLE, + .rst_bank_ofs = pericfg_rst_bank_ofs, + .rst_bank_nr = ARRAY_SIZE(pericfg_rst_bank_ofs), + .rst_idx_map = pericfg_rst_idx_map, + .rst_idx_map_nr = ARRAY_SIZE(pericfg_rst_idx_map) +}; + +static const struct mtk_clk_desc pericfg_clks = { + .clks = pericfg_gates, + .num_clks = ARRAY_SIZE(pericfg_gates), + + .rst_desc = &pericfg_resets +}; + +static const struct of_device_id of_match_mt6735_pericfg[] = { + { .compatible = "mediatek,mt6735-pericfg", .data = &pericfg_clks }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, of_match_mt6735_pericfg); + +static struct platform_driver clk_mt6735_pericfg = { + .probe = mtk_clk_simple_probe, + .remove = mtk_clk_simple_remove, + .driver = { + .name = "clk-mt6735-pericfg", + .of_match_table = of_match_mt6735_pericfg, + }, +}; +module_platform_driver(clk_mt6735_pericfg); + +MODULE_AUTHOR("Yassine Oudjana <y.oudjana@protonmail.com>"); +MODULE_DESCRIPTION("MediaTek MT6735 pericfg clock driver"); +MODULE_LICENSE("GPL"); |