diff options
| author | Marek Vasut <marex@denx.de> | 2013-01-11 03:19:02 +0000 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2013-01-21 12:05:19 +0100 |
| commit | 14e26bcfa700b507a805eb30c72e3b6a1ba19d7f (patch) | |
| tree | 07b2611205bc7414a74b4cb0c7650a7c4853e13a /drivers/spi | |
| parent | 59b6defa2b2db1b51f772e8ef6af2617463c8f80 (diff) | |
mxs: ssp: Pull out the SSP bus to regs conversion
Create function which converts SSP bus number to SSP register pointer.
This functionality is reimplemented multiple times in the code, thus
make one common implementation. Moreover, make it a switch(), since the
SSP ports are not mapped in such nice linear fashion on MX23, therefore
having it a switch will simplify things there.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Andy Fleming <afleming@freescale.com>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
Diffstat (limited to 'drivers/spi')
| -rw-r--r-- | drivers/spi/mxs_spi.c | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/drivers/spi/mxs_spi.c b/drivers/spi/mxs_spi.c index 42e4c9952e..31cd77d31c 100644 --- a/drivers/spi/mxs_spi.c +++ b/drivers/spi/mxs_spi.c @@ -80,7 +80,6 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs, unsigned int max_hz, unsigned int mode) { struct mxs_spi_slave *mxs_slave; - uint32_t addr; struct mxs_ssp_regs *ssp_regs; int reg; @@ -96,13 +95,11 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs, if (mxs_dma_init_channel(bus)) goto err_init; - addr = MXS_SSP0_BASE + (bus * MXS_SPI_PORT_OFFSET); - mxs_slave->slave.bus = bus; mxs_slave->slave.cs = cs; mxs_slave->max_khz = max_hz / 1000; mxs_slave->mode = mode; - mxs_slave->regs = (struct mxs_ssp_regs *)addr; + mxs_slave->regs = mxs_ssp_regs_by_bus(bus); ssp_regs = mxs_slave->regs; reg = readl(&ssp_regs->hw_ssp_ctrl0); |