105 lines
2.5 KiB
C
105 lines
2.5 KiB
C
/* 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__ */
|