diff options
| author |   Kamal Dasu <kdasu.kdev@gmail.com> | 2016-08-24 18:04:25 -0400 |
|---|---|---|
| committer |   Mark Brown <broonie@kernel.org> | 2016-09-14 18:03:32 +0100 |
| commit | 4e3b2d236fe00f0e0b6c45dcb3cc7d84c2316424 (patch) | |
| tree | 8402ac49002fc0b100bcf0b5d6e3cf2a14820293 /drivers/spi/spi-bcm-qspi.h | |
| parent | spi: brcmstb-qspi: Broadcom settop platform driver (diff) | |
| download | linux-dev-4e3b2d236fe00f0e0b6c45dcb3cc7d84c2316424.tar.xz linux-dev-4e3b2d236fe00f0e0b6c45dcb3cc7d84c2316424.zip | |
spi: bcm-qspi: Add BSPI spi-nor flash controller driver
This change implements BSPI driver for Broadcom BRCMSTB, NS2,
NSP SoCs works in combination with the MSPI controller driver
and implements flash read acceleration and implements the
spi_flash_read() method. Both MSPI and BSPI controllers are
needed to access spi-nor flash.
Signed-off-by: Kamal Dasu <kdasu.kdev@gmail.com>
Signed-off-by: Yendapally Reddy Dhananjaya Reddy <yendapally.reddy@broadcom.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi/spi-bcm-qspi.h')
| -rw-r--r-- | drivers/spi/spi-bcm-qspi.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/spi/spi-bcm-qspi.h b/drivers/spi/spi-bcm-qspi.h index 8d4d385c444c..65c363b6b7b7 100644 --- a/drivers/spi/spi-bcm-qspi.h +++ b/drivers/spi/spi-bcm-qspi.h @@ -20,6 +20,26 @@ #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) |