From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- drivers/spi/spi-bcm-qspi.h | 104 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 104 insertions(+) create mode 100644 drivers/spi/spi-bcm-qspi.h (limited to 'drivers/spi/spi-bcm-qspi.h') diff --git a/drivers/spi/spi-bcm-qspi.h b/drivers/spi/spi-bcm-qspi.h new file mode 100644 index 000000000..01aec6460 --- /dev/null +++ b/drivers/spi/spi-bcm-qspi.h @@ -0,0 +1,104 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright 2016 Broadcom + */ + +#ifndef __SPI_BCM_QSPI_H__ +#define __SPI_BCM_QSPI_H__ + +#include +#include + +/* 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); +int 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__ */ -- cgit v1.2.3