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