From cc20a38612dbc87dc7396affc9758e3bfbe92340 Mon Sep 17 00:00:00 2001 From: Kamal Dasu Date: Wed, 24 Aug 2016 18:04:29 -0400 Subject: spi: iproc-qspi: Add Broadcom iProc SoCs support This spi driver uses the common spi-bcm-qspi driver and implements iProc SoCs specific interrupt controller. The common driver now calls the SoC handlers when present. Adding support for both muxed l1 and unmuxed interrupt sources. Signed-off-by: Kamal Dasu Signed-off-by: Yendapally Reddy Dhananjaya Reddy Signed-off-by: Mark Brown --- drivers/spi/spi-bcm-qspi.h | 34 +++++++++++++++++++++++++++++++++- 1 file changed, 33 insertions(+), 1 deletion(-) (limited to 'drivers/spi/spi-bcm-qspi.h') diff --git a/drivers/spi/spi-bcm-qspi.h b/drivers/spi/spi-bcm-qspi.h index 65c363b6b7b7..7abfc75a3860 100644 --- a/drivers/spi/spi-bcm-qspi.h +++ b/drivers/spi/spi-bcm-qspi.h @@ -48,10 +48,26 @@ (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; -struct bcm_qspi_soc_intc; +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) @@ -72,6 +88,22 @@ static inline void bcm_qspi_writel(bool be, 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); -- cgit v1.2.3