/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright 2016 Broadcom */ #ifndef __SPI_BCM_QSPI_H__ #define __SPI_BCM_QSPI_H__ #include <linux/types.h> #include <linux/io.h> /* BSPI interrupt masks */ #define INTR_BSPI_LR_OVERREAD_MASK BIT(4) #define INTR_BSPI_LR_SESSION_DONE_MASK BIT(3) #define INTR_BSPI_LR_IMPATIENT_MASK BIT(2) #define INTR_BSPI_LR_SESSION_ABORTED_MASK BIT(1) #define INTR_BSPI_LR_FULLNESS_REACHED_MASK BIT(0) #define BSPI_LR_INTERRUPTS_DATA \ (INTR_BSPI_LR_SESSION_DONE_MASK | \ INTR_BSPI_LR_FULLNESS_REACHED_MASK) #define BSPI_LR_INTERRUPTS_ERROR \ (INTR_BSPI_LR_OVERREAD_MASK | \ INTR_BSPI_LR_IMPATIENT_MASK | \ INTR_BSPI_LR_SESSION_ABORTED_MASK) #define BSPI_LR_INTERRUPTS_ALL \ (BSPI_LR_INTERRUPTS_ERROR | \ BSPI_LR_INTERRUPTS_DATA) /* MSPI Interrupt masks */ #define INTR_MSPI_HALTED_MASK BIT(6) #define INTR_MSPI_DONE_MASK BIT(5) #define MSPI_INTERRUPTS_ALL \ (INTR_MSPI_DONE_MASK | \ INTR_MSPI_HALTED_MASK) #define QSPI_INTERRUPTS_ALL \ (MSPI_INTERRUPTS_ALL | \ BSPI_LR_INTERRUPTS_ALL) struct platform_device; struct dev_pm_ops; enum { MSPI_DONE = 0x1, BSPI_DONE = 0x2, BSPI_ERR = 0x4, MSPI_BSPI_DONE = 0x7 }; struct bcm_qspi_soc_intc { void (*bcm_qspi_int_ack)(struct bcm_qspi_soc_intc *soc_intc, int type); void (*bcm_qspi_int_set)(struct bcm_qspi_soc_intc *soc_intc, int type, bool en); u32 (*bcm_qspi_get_int_status)(struct bcm_qspi_soc_intc *soc_intc); }; /* Read controller register*/ static inline u32 bcm_qspi_readl(bool be, void __iomem *addr) { if (be) return ioread32be(addr); else return readl_relaxed(addr); } /* Write controller register*/ static inline void bcm_qspi_writel(bool be, unsigned int data, void __iomem *addr) { if (be) iowrite32be(data, addr); else writel_relaxed(data, addr); } static inline u32 get_qspi_mask(int type) { switch (type) { case MSPI_DONE: return INTR_MSPI_DONE_MASK; case BSPI_DONE: return BSPI_LR_INTERRUPTS_ALL; case MSPI_BSPI_DONE: return QSPI_INTERRUPTS_ALL; case BSPI_ERR: return BSPI_LR_INTERRUPTS_ERROR; } return 0; } /* The common driver functions to be called by the SoC platform driver */ int bcm_qspi_probe(struct platform_device *pdev, struct bcm_qspi_soc_intc *soc_intc); void bcm_qspi_remove(struct platform_device *pdev); /* pm_ops used by the SoC platform driver called on PM suspend/resume */ extern const struct dev_pm_ops bcm_qspi_pm_ops; #endif /* __SPI_BCM_QSPI_H__ */