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1/* SPDX-License-Identifier: GPL-2.0-only */2/*3 * Copyright 2016 Broadcom4 */5 6#ifndef __SPI_BCM_QSPI_H__7#define __SPI_BCM_QSPI_H__8 9#include <linux/types.h>10#include <linux/io.h>11 12/* BSPI interrupt masks */13#define INTR_BSPI_LR_OVERREAD_MASK BIT(4)14#define INTR_BSPI_LR_SESSION_DONE_MASK BIT(3)15#define INTR_BSPI_LR_IMPATIENT_MASK BIT(2)16#define INTR_BSPI_LR_SESSION_ABORTED_MASK BIT(1)17#define INTR_BSPI_LR_FULLNESS_REACHED_MASK BIT(0)18 19#define BSPI_LR_INTERRUPTS_DATA \20 (INTR_BSPI_LR_SESSION_DONE_MASK | \21 INTR_BSPI_LR_FULLNESS_REACHED_MASK)22 23#define BSPI_LR_INTERRUPTS_ERROR \24 (INTR_BSPI_LR_OVERREAD_MASK | \25 INTR_BSPI_LR_IMPATIENT_MASK | \26 INTR_BSPI_LR_SESSION_ABORTED_MASK)27 28#define BSPI_LR_INTERRUPTS_ALL \29 (BSPI_LR_INTERRUPTS_ERROR | \30 BSPI_LR_INTERRUPTS_DATA)31 32/* MSPI Interrupt masks */33#define INTR_MSPI_HALTED_MASK BIT(6)34#define INTR_MSPI_DONE_MASK BIT(5)35 36#define MSPI_INTERRUPTS_ALL \37 (INTR_MSPI_DONE_MASK | \38 INTR_MSPI_HALTED_MASK)39 40#define QSPI_INTERRUPTS_ALL \41 (MSPI_INTERRUPTS_ALL | \42 BSPI_LR_INTERRUPTS_ALL)43 44struct platform_device;45struct dev_pm_ops;46 47enum {48 MSPI_DONE = 0x1,49 BSPI_DONE = 0x2,50 BSPI_ERR = 0x4,51 MSPI_BSPI_DONE = 0x752};53 54struct bcm_qspi_soc_intc {55 void (*bcm_qspi_int_ack)(struct bcm_qspi_soc_intc *soc_intc, int type);56 void (*bcm_qspi_int_set)(struct bcm_qspi_soc_intc *soc_intc, int type,57 bool en);58 u32 (*bcm_qspi_get_int_status)(struct bcm_qspi_soc_intc *soc_intc);59};60 61/* Read controller register*/62static inline u32 bcm_qspi_readl(bool be, void __iomem *addr)63{64 if (be)65 return ioread32be(addr);66 else67 return readl_relaxed(addr);68}69 70/* Write controller register*/71static inline void bcm_qspi_writel(bool be,72 unsigned int data, void __iomem *addr)73{74 if (be)75 iowrite32be(data, addr);76 else77 writel_relaxed(data, addr);78}79 80static inline u32 get_qspi_mask(int type)81{82 switch (type) {83 case MSPI_DONE:84 return INTR_MSPI_DONE_MASK;85 case BSPI_DONE:86 return BSPI_LR_INTERRUPTS_ALL;87 case MSPI_BSPI_DONE:88 return QSPI_INTERRUPTS_ALL;89 case BSPI_ERR:90 return BSPI_LR_INTERRUPTS_ERROR;91 }92 93 return 0;94}95 96/* The common driver functions to be called by the SoC platform driver */97int bcm_qspi_probe(struct platform_device *pdev,98 struct bcm_qspi_soc_intc *soc_intc);99void bcm_qspi_remove(struct platform_device *pdev);100 101/* pm_ops used by the SoC platform driver called on PM suspend/resume */102extern const struct dev_pm_ops bcm_qspi_pm_ops;103 104#endif /* __SPI_BCM_QSPI_H__ */105