[U-Boot] [PATCH v5 02/23] spi: zynq_[q]spi: Use GENMASK macro
Siva Durga Prasad Paladugu
siva.durga.paladugu at xilinx.com
Mon Oct 26 05:45:57 CET 2015
> -----Original Message-----
> From: Jagan Teki [mailto:jteki at openedev.com]
> Sent: Saturday, October 24, 2015 9:09 AM
> To: u-boot at lists.denx.de
> Cc: Jagan Teki; Siva Durga Prasad Paladugu; Michal Simek
> Subject: [PATCH v5 02/23] spi: zynq_[q]spi: Use GENMASK macro
>
> GENMASK macro used on zynq_spi.c and zynq_qspi.c
>
> GENMASK is used to create a contiguous bitmask([hi:lo]).
> Ex: (0x7 << 3) => GENMASK(5, 3)
>
> Cc: Siva Durga Prasad Paladugu <sivadur at xilinx.com>
> Cc: Michal Simek <michal.simek at xilinx.com>
> Signed-off-by: Jagan Teki <jteki at openedev.com>
Acked-by: Siva Durga Prasad Paladugu <sivadur at xilinx.com>
> ---
> drivers/spi/zynq_qspi.c | 8 ++++----
> drivers/spi/zynq_spi.c | 6 +++---
> 2 files changed, 7 insertions(+), 7 deletions(-)
>
> diff --git a/drivers/spi/zynq_qspi.c b/drivers/spi/zynq_qspi.c index
> dd530a1..64b4eea 100644
> --- a/drivers/spi/zynq_qspi.c
> +++ b/drivers/spi/zynq_qspi.c
> @@ -20,15 +20,15 @@ DECLARE_GLOBAL_DATA_PTR;
> #define ZYNQ_QSPI_CR_MSA_MASK BIT(15) /* Manual start enb
> */
> #define ZYNQ_QSPI_CR_MCS_MASK BIT(14) /* Manual chip select
> */
> #define ZYNQ_QSPI_CR_PCS_MASK BIT(10) /* Peri chip select */
> -#define ZYNQ_QSPI_CR_FW_MASK (0x3 << 6) /* FIFO width
> */
> -#define ZYNQ_QSPI_CR_SS_MASK (0xF << 10) /* Slave
> Select */
> -#define ZYNQ_QSPI_CR_BAUD_MASK (0x7 << 3) /*
> Baud rate div */
> +#define ZYNQ_QSPI_CR_FW_MASK GENMASK(7, 6) /*
> FIFO width */
> +#define ZYNQ_QSPI_CR_SS_MASK GENMASK(13, 10) /*
> Slave Select */
> +#define ZYNQ_QSPI_CR_BAUD_MASK GENMASK(5, 3)
> /* Baud rate div */
> #define ZYNQ_QSPI_CR_CPHA_MASK BIT(2) /* Clock phase */
> #define ZYNQ_QSPI_CR_CPOL_MASK BIT(1) /* Clock polarity */
> #define ZYNQ_QSPI_CR_MSTREN_MASK BIT(0) /* Mode select */
> #define ZYNQ_QSPI_IXR_RXNEMPTY_MASK BIT(4) /*
> RX_FIFO_not_empty */
> #define ZYNQ_QSPI_IXR_TXOW_MASK BIT(2) /*
> TX_FIFO_not_full */
> -#define ZYNQ_QSPI_IXR_ALL_MASK 0x7F /* All IXR bits
> */
> +#define ZYNQ_QSPI_IXR_ALL_MASK GENMASK(6, 0) /* All
> IXR bits */
> #define ZYNQ_QSPI_ENR_SPI_EN_MASK BIT(0) /* SPI Enable */
>
> /* zynq qspi Transmit Data Register */
> diff --git a/drivers/spi/zynq_spi.c b/drivers/spi/zynq_spi.c index
> 92e5712..9ede099 100644
> --- a/drivers/spi/zynq_spi.c
> +++ b/drivers/spi/zynq_spi.c
> @@ -22,14 +22,14 @@ DECLARE_GLOBAL_DATA_PTR;
> /* zynq spi register bit masks ZYNQ_SPI_<REG>_<BIT>_MASK */
> #define ZYNQ_SPI_CR_MSA_MASK BIT(15) /* Manual start enb
> */
> #define ZYNQ_SPI_CR_MCS_MASK BIT(14) /* Manual chip select
> */
> -#define ZYNQ_SPI_CR_CS_MASK (0xF << 10) /* Chip select
> */
> -#define ZYNQ_SPI_CR_BAUD_MASK (0x7 << 3) /* Baud rate
> div */
> +#define ZYNQ_SPI_CR_CS_MASK GENMASK(13, 10) /*
> Chip select */
> +#define ZYNQ_SPI_CR_BAUD_MASK GENMASK(5, 3) /*
> Baud rate div */
> #define ZYNQ_SPI_CR_CPHA_MASK BIT(2) /* Clock phase */
> #define ZYNQ_SPI_CR_CPOL_MASK BIT(1) /* Clock polarity */
> #define ZYNQ_SPI_CR_MSTREN_MASK BIT(0) /* Mode
> select */
> #define ZYNQ_SPI_IXR_RXNEMPTY_MASK BIT(4) /*
> RX_FIFO_not_empty */
> #define ZYNQ_SPI_IXR_TXOW_MASK BIT(2) /* TX_FIFO_not_full
> */
> -#define ZYNQ_SPI_IXR_ALL_MASK 0x7F /* All IXR bits
> */
> +#define ZYNQ_SPI_IXR_ALL_MASK GENMASK(6, 0) /* All
> IXR bits */
> #define ZYNQ_SPI_ENR_SPI_EN_MASK BIT(0) /* SPI Enable */
>
> #define ZYNQ_SPI_CR_BAUD_MAX 8 /* Baud rate divisor
> max val */
> --
> 1.9.1
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