diff options
Diffstat (limited to 'drivers/clk/mediatek/clk-mt6735-infracfg.c')
| -rw-r--r-- | drivers/clk/mediatek/clk-mt6735-infracfg.c | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/drivers/clk/mediatek/clk-mt6735-infracfg.c b/drivers/clk/mediatek/clk-mt6735-infracfg.c new file mode 100644 index 000000000000..c1171f903cfa --- /dev/null +++ b/drivers/clk/mediatek/clk-mt6735-infracfg.c @@ -0,0 +1,107 @@ +// 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-infracfg.h> +#include <dt-bindings/reset/mediatek,mt6735-infracfg.h> + +#define INFRA_RST0 0x30 +#define INFRA_GLOBALCON_PDN0 0x40 +#define INFRA_PDN1 0x44 +#define INFRA_PDN_STA 0x48 + +#define RST_NR_PER_BANK 32 + +static struct mtk_gate_regs infra_cg_regs = { + .set_ofs = INFRA_GLOBALCON_PDN0, + .clr_ofs = INFRA_PDN1, + .sta_ofs = INFRA_PDN_STA, +}; + +static const struct mtk_gate infracfg_gates[] = { + GATE_MTK(CLK_INFRA_DBG, "dbg", "axi_sel", &infra_cg_regs, 0, &mtk_clk_gate_ops_setclr), + GATE_MTK(CLK_INFRA_GCE, "gce", "axi_sel", &infra_cg_regs, 1, &mtk_clk_gate_ops_setclr), + GATE_MTK(CLK_INFRA_TRBG, "trbg", "axi_sel", &infra_cg_regs, 2, &mtk_clk_gate_ops_setclr), + GATE_MTK(CLK_INFRA_CPUM, "cpum", "axi_sel", &infra_cg_regs, 3, &mtk_clk_gate_ops_setclr), + GATE_MTK(CLK_INFRA_DEVAPC, "devapc", "axi_sel", &infra_cg_regs, 4, &mtk_clk_gate_ops_setclr), + GATE_MTK(CLK_INFRA_AUDIO, "audio", "aud_intbus_sel", &infra_cg_regs, 5, &mtk_clk_gate_ops_setclr), + GATE_MTK(CLK_INFRA_GCPU, "gcpu", "axi_sel", &infra_cg_regs, 6, &mtk_clk_gate_ops_setclr), + GATE_MTK(CLK_INFRA_L2C_SRAM, "l2csram", "axi_sel", &infra_cg_regs, 7, &mtk_clk_gate_ops_setclr), + GATE_MTK(CLK_INFRA_M4U, "m4u", "axi_sel", &infra_cg_regs, 8, &mtk_clk_gate_ops_setclr), + GATE_MTK(CLK_INFRA_CLDMA, "cldma", "axi_sel", &infra_cg_regs, 12, &mtk_clk_gate_ops_setclr), + GATE_MTK(CLK_INFRA_CONNMCU_BUS, "connmcu_bus", "axi_sel", &infra_cg_regs, 15, &mtk_clk_gate_ops_setclr), + GATE_MTK(CLK_INFRA_KP, "kp", "axi_sel", &infra_cg_regs, 16, &mtk_clk_gate_ops_setclr), + GATE_MTK_FLAGS(CLK_INFRA_APXGPT, "apxgpt", "axi_sel", &infra_cg_regs, 18, &mtk_clk_gate_ops_setclr, CLK_IS_CRITICAL), + GATE_MTK(CLK_INFRA_SEJ, "sej", "axi_sel", &infra_cg_regs, 19, &mtk_clk_gate_ops_setclr), + GATE_MTK(CLK_INFRA_CCIF0_AP, "ccif0ap", "axi_sel", &infra_cg_regs, 20, &mtk_clk_gate_ops_setclr), + GATE_MTK(CLK_INFRA_CCIF1_AP, "ccif1ap", "axi_sel", &infra_cg_regs, 21, &mtk_clk_gate_ops_setclr), + GATE_MTK(CLK_INFRA_PMIC_SPI, "pmicspi", "pmicspi_sel", &infra_cg_regs, 22, &mtk_clk_gate_ops_setclr), + GATE_MTK(CLK_INFRA_PMIC_WRAP, "pmicwrap", "axi_sel", &infra_cg_regs, 23, &mtk_clk_gate_ops_setclr) +}; + +static u16 infracfg_rst_bank_ofs[] = { INFRA_RST0 }; + +static u16 infracfg_rst_idx_map[] = { + [MT6735_INFRA_RST0_EMI_REG] = 0 * RST_NR_PER_BANK + 0, + [MT6735_INFRA_RST0_DRAMC0_AO] = 0 * RST_NR_PER_BANK + 1, + [MT6735_INFRA_RST0_AP_CIRQ_EINT] = 0 * RST_NR_PER_BANK + 3, + [MT6735_INFRA_RST0_APXGPT] = 0 * RST_NR_PER_BANK + 4, + [MT6735_INFRA_RST0_SCPSYS] = 0 * RST_NR_PER_BANK + 5, + [MT6735_INFRA_RST0_KP] = 0 * RST_NR_PER_BANK + 6, + [MT6735_INFRA_RST0_PMIC_WRAP] = 0 * RST_NR_PER_BANK + 7, + [MT6735_INFRA_RST0_CLDMA_AO_TOP] = 0 * RST_NR_PER_BANK + 8, + [MT6735_INFRA_RST0_USBSIF_TOP] = 0 * RST_NR_PER_BANK + 9, + [MT6735_INFRA_RST0_EMI] = 0 * RST_NR_PER_BANK + 16, + [MT6735_INFRA_RST0_CCIF] = 0 * RST_NR_PER_BANK + 17, + [MT6735_INFRA_RST0_DRAMC0] = 0 * RST_NR_PER_BANK + 18, + [MT6735_INFRA_RST0_EMI_AO_REG] = 0 * RST_NR_PER_BANK + 19, + [MT6735_INFRA_RST0_CCIF_AO] = 0 * RST_NR_PER_BANK + 20, + [MT6735_INFRA_RST0_TRNG] = 0 * RST_NR_PER_BANK + 21, + [MT6735_INFRA_RST0_SYS_CIRQ] = 0 * RST_NR_PER_BANK + 22, + [MT6735_INFRA_RST0_GCE] = 0 * RST_NR_PER_BANK + 23, + [MT6735_INFRA_RST0_M4U] = 0 * RST_NR_PER_BANK + 24, + [MT6735_INFRA_RST0_CCIF1] = 0 * RST_NR_PER_BANK + 25, + [MT6735_INFRA_RST0_CLDMA_TOP_PD] = 0 * RST_NR_PER_BANK + 26 +}; + +static const struct mtk_clk_rst_desc infracfg_resets = { + .version = MTK_RST_SIMPLE, + .rst_bank_ofs = infracfg_rst_bank_ofs, + .rst_bank_nr = ARRAY_SIZE(infracfg_rst_bank_ofs), + .rst_idx_map = infracfg_rst_idx_map, + .rst_idx_map_nr = ARRAY_SIZE(infracfg_rst_idx_map) +}; + +static const struct mtk_clk_desc infracfg_clks = { + .clks = infracfg_gates, + .num_clks = ARRAY_SIZE(infracfg_gates), + + .rst_desc = &infracfg_resets +}; + +static const struct of_device_id of_match_mt6735_infracfg[] = { + { .compatible = "mediatek,mt6735-infracfg", .data = &infracfg_clks }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, of_match_mt6735_infracfg); + +static struct platform_driver clk_mt6735_infracfg = { + .probe = mtk_clk_simple_probe, + .remove = mtk_clk_simple_remove, + .driver = { + .name = "clk-mt6735-infracfg", + .of_match_table = of_match_mt6735_infracfg, + }, +}; +module_platform_driver(clk_mt6735_infracfg); + +MODULE_AUTHOR("Yassine Oudjana <y.oudjana@protonmail.com>"); +MODULE_DESCRIPTION("MediaTek MT6735 infracfg clock and reset driver"); +MODULE_LICENSE("GPL"); |