// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (c) 2014 MediaTek Inc. * Author: Flora Fu, MediaTek */ #include <linux/clk.h> #include <linux/interrupt.h> #include <linux/io.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/of.h> #include <linux/of_platform.h> #include <linux/platform_device.h> #include <linux/regmap.h> #include <linux/reset.h> #define PWRAP_POLL_DELAY_US … #define PWRAP_POLL_TIMEOUT_US … #define PWRAP_MT8135_BRIDGE_IORD_ARB_EN … #define PWRAP_MT8135_BRIDGE_WACS3_EN … #define PWRAP_MT8135_BRIDGE_INIT_DONE3 … #define PWRAP_MT8135_BRIDGE_WACS4_EN … #define PWRAP_MT8135_BRIDGE_INIT_DONE4 … #define PWRAP_MT8135_BRIDGE_INT_EN … #define PWRAP_MT8135_BRIDGE_TIMER_EN … #define PWRAP_MT8135_BRIDGE_WDT_UNIT … #define PWRAP_MT8135_BRIDGE_WDT_SRC_EN … /* macro for wrapper status */ #define PWRAP_GET_WACS_RDATA(x) … #define PWRAP_GET_WACS_ARB_FSM(x) … #define PWRAP_GET_WACS_FSM(x) … #define PWRAP_GET_WACS_REQ(x) … #define PWRAP_STATE_SYNC_IDLE0 … #define PWRAP_STATE_INIT_DONE0 … #define PWRAP_STATE_INIT_DONE0_MT8186 … #define PWRAP_STATE_INIT_DONE1 … /* macro for WACS FSM */ #define PWRAP_WACS_FSM_IDLE … #define PWRAP_WACS_FSM_REQ … #define PWRAP_WACS_FSM_WFDLE … #define PWRAP_WACS_FSM_WFVLDCLR … #define PWRAP_WACS_INIT_DONE … #define PWRAP_WACS_WACS_SYNC_IDLE … #define PWRAP_WACS_SYNC_BUSY … /* macro for device wrapper default value */ #define PWRAP_DEW_READ_TEST_VAL … #define PWRAP_DEW_COMP_READ_TEST_VAL … #define PWRAP_DEW_WRITE_TEST_VAL … /* macro for manual command */ #define PWRAP_MAN_CMD_SPI_WRITE_NEW … #define PWRAP_MAN_CMD_SPI_WRITE … #define PWRAP_MAN_CMD_OP_CSH … #define PWRAP_MAN_CMD_OP_CSL … #define PWRAP_MAN_CMD_OP_CK … #define PWRAP_MAN_CMD_OP_OUTS … #define PWRAP_MAN_CMD_OP_OUTD … #define PWRAP_MAN_CMD_OP_OUTQ … /* macro for Watch Dog Timer Source */ #define PWRAP_WDT_SRC_EN_STAUPD_TRIG … #define PWRAP_WDT_SRC_EN_HARB_STAUPD_DLE … #define PWRAP_WDT_SRC_EN_HARB_STAUPD_ALE … #define PWRAP_WDT_SRC_MASK_ALL … #define PWRAP_WDT_SRC_MASK_NO_STAUPD … /* Group of bits used for shown slave capability */ #define PWRAP_SLV_CAP_SPI … #define PWRAP_SLV_CAP_DUALIO … #define PWRAP_SLV_CAP_SECURITY … #define HAS_CAP(_c, _x) … /* Group of bits used for shown pwrap capability */ #define PWRAP_CAP_BRIDGE … #define PWRAP_CAP_RESET … #define PWRAP_CAP_DCM … #define PWRAP_CAP_INT1_EN … #define PWRAP_CAP_WDT_SRC1 … #define PWRAP_CAP_ARB … #define PWRAP_CAP_ARB_MT8186 … /* defines for slave device wrapper registers */ enum dew_regs { … }; static const u32 mt6323_regs[] = …; static const u32 mt6331_regs[] = …; static const u32 mt6332_regs[] = …; static const u32 mt6351_regs[] = …; static const u32 mt6357_regs[] = …; static const u32 mt6358_regs[] = …; static const u32 mt6359_regs[] = …; static const u32 mt6397_regs[] = …; enum pwrap_regs { … }; static int mt2701_regs[] = …; static int mt6765_regs[] = …; static int mt6779_regs[] = …; static int mt6795_regs[] = …; static int mt6797_regs[] = …; static int mt6873_regs[] = …; static int mt7622_regs[] = …; static int mt8135_regs[] = …; static int mt8173_regs[] = …; static int mt8183_regs[] = …; static int mt8195_regs[] = …; static int mt8365_regs[] = …; static int mt8516_regs[] = …; static int mt8186_regs[] = …; enum pmic_type { … }; enum pwrap_type { … }; struct pmic_wrapper; struct pwrap_slv_regops { … }; /** * struct pwrap_slv_type - PMIC device wrapper definitions * @dew_regs: Device Wrapper (DeW) register offsets * @type: PMIC Type (model) * @comp_dew_regs: Device Wrapper (DeW) register offsets for companion device * @comp_type: Companion PMIC Type (model) * @regops: Register R/W ops * @caps: Capability flags for the target device */ struct pwrap_slv_type { … }; struct pmic_wrapper { … }; struct pmic_wrapper_type { … }; static u32 pwrap_readl(struct pmic_wrapper *wrp, enum pwrap_regs reg) { … } static void pwrap_writel(struct pmic_wrapper *wrp, u32 val, enum pwrap_regs reg) { … } static u32 pwrap_get_fsm_state(struct pmic_wrapper *wrp) { … } static bool pwrap_is_fsm_idle(struct pmic_wrapper *wrp) { … } static bool pwrap_is_fsm_vldclr(struct pmic_wrapper *wrp) { … } /* * Timeout issue sometimes caused by the last read command * failed because pmic wrap could not got the FSM_VLDCLR * in time after finishing WACS2_CMD. It made state machine * still on FSM_VLDCLR and timeout next time. * Check the status of FSM and clear the vldclr to recovery the * error. */ static inline void pwrap_leave_fsm_vldclr(struct pmic_wrapper *wrp) { … } static bool pwrap_is_sync_idle(struct pmic_wrapper *wrp) { … } static bool pwrap_is_fsm_idle_and_sync_idle(struct pmic_wrapper *wrp) { … } static int pwrap_read16(struct pmic_wrapper *wrp, u32 adr, u32 *rdata) { … } static int pwrap_read32(struct pmic_wrapper *wrp, u32 adr, u32 *rdata) { … } static int pwrap_read(struct pmic_wrapper *wrp, u32 adr, u32 *rdata) { … } static int pwrap_write16(struct pmic_wrapper *wrp, u32 adr, u32 wdata) { … } static int pwrap_write32(struct pmic_wrapper *wrp, u32 adr, u32 wdata) { … } static int pwrap_write(struct pmic_wrapper *wrp, u32 adr, u32 wdata) { … } static int pwrap_regmap_read(void *context, u32 adr, u32 *rdata) { … } static int pwrap_regmap_write(void *context, u32 adr, u32 wdata) { … } static bool pwrap_pmic_read_test(struct pmic_wrapper *wrp, const u32 *dew_regs, u16 read_test_val) { … } static int pwrap_reset_spislave(struct pmic_wrapper *wrp) { … } /* * pwrap_init_sidly - configure serial input delay * * This configures the serial input delay. We can configure 0, 2, 4 or 6ns * delay. Do a read test with all possible values and chose the best delay. */ static int pwrap_init_sidly(struct pmic_wrapper *wrp) { … } static int pwrap_init_dual_io(struct pmic_wrapper *wrp) { … } /* * pwrap_init_chip_select_ext is used to configure CS extension time for each * phase during data transactions on the pwrap bus. */ static void pwrap_init_chip_select_ext(struct pmic_wrapper *wrp, u8 hext_write, u8 hext_read, u8 lext_start, u8 lext_end) { … } static int pwrap_common_init_reg_clock(struct pmic_wrapper *wrp) { … } static int pwrap_mt2701_init_reg_clock(struct pmic_wrapper *wrp) { … } static bool pwrap_is_cipher_ready(struct pmic_wrapper *wrp) { … } static bool __pwrap_is_pmic_cipher_ready(struct pmic_wrapper *wrp, const u32 *dew_regs) { … } static bool pwrap_is_pmic_cipher_ready(struct pmic_wrapper *wrp) { … } static void pwrap_config_cipher(struct pmic_wrapper *wrp, const u32 *dew_regs) { … } static int pwrap_init_cipher(struct pmic_wrapper *wrp) { … } static int pwrap_init_security(struct pmic_wrapper *wrp) { … } static int pwrap_mt8135_init_soc_specific(struct pmic_wrapper *wrp) { … } static int pwrap_mt8173_init_soc_specific(struct pmic_wrapper *wrp) { … } static int pwrap_mt2701_init_soc_specific(struct pmic_wrapper *wrp) { … } static int pwrap_mt6795_init_soc_specific(struct pmic_wrapper *wrp) { … } static int pwrap_mt7622_init_soc_specific(struct pmic_wrapper *wrp) { … } static int pwrap_mt8183_init_soc_specific(struct pmic_wrapper *wrp) { … } static int pwrap_init(struct pmic_wrapper *wrp) { … } static irqreturn_t pwrap_interrupt(int irqno, void *dev_id) { … } static const struct regmap_config pwrap_regmap_config16 = …; static const struct regmap_config pwrap_regmap_config32 = …; static const struct pwrap_slv_regops pwrap_regops16 = …; static const struct pwrap_slv_regops pwrap_regops32 = …; static const struct pwrap_slv_type pmic_mt6323 = …; static const struct pwrap_slv_type pmic_mt6331 = …; static const struct pwrap_slv_type pmic_mt6351 = …; static const struct pwrap_slv_type pmic_mt6357 = …; static const struct pwrap_slv_type pmic_mt6358 = …; static const struct pwrap_slv_type pmic_mt6359 = …; static const struct pwrap_slv_type pmic_mt6380 = …; static const struct pwrap_slv_type pmic_mt6397 = …; static const struct of_device_id of_slave_match_tbl[] = …; MODULE_DEVICE_TABLE(of, of_slave_match_tbl); static const struct pmic_wrapper_type pwrap_mt2701 = …; static const struct pmic_wrapper_type pwrap_mt6765 = …; static const struct pmic_wrapper_type pwrap_mt6779 = …; static const struct pmic_wrapper_type pwrap_mt6795 = …; static const struct pmic_wrapper_type pwrap_mt6797 = …; static const struct pmic_wrapper_type pwrap_mt6873 = …; static const struct pmic_wrapper_type pwrap_mt7622 = …; static const struct pmic_wrapper_type pwrap_mt8135 = …; static const struct pmic_wrapper_type pwrap_mt8173 = …; static const struct pmic_wrapper_type pwrap_mt8183 = …; static struct pmic_wrapper_type pwrap_mt8195 = …; static const struct pmic_wrapper_type pwrap_mt8365 = …; static struct pmic_wrapper_type pwrap_mt8516 = …; static struct pmic_wrapper_type pwrap_mt8186 = …; static const struct of_device_id of_pwrap_match_tbl[] = …; MODULE_DEVICE_TABLE(of, of_pwrap_match_tbl); static int pwrap_probe(struct platform_device *pdev) { … } static struct platform_driver pwrap_drv = …; module_platform_driver(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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