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>
diff --git a/drivers/mmc/mxsmmc.c b/drivers/mmc/mxsmmc.c
index aa3d1b0..2fd9ccc 100644
--- a/drivers/mmc/mxsmmc.c
+++ b/drivers/mmc/mxsmmc.c
@@ -380,20 +380,7 @@
priv->mmc_is_wp = wp;
priv->id = id;
- switch (id) {
- case 0:
- priv->regs = (struct mxs_ssp_regs *)MXS_SSP0_BASE;
- break;
- case 1:
- priv->regs = (struct mxs_ssp_regs *)MXS_SSP1_BASE;
- break;
- case 2:
- priv->regs = (struct mxs_ssp_regs *)MXS_SSP2_BASE;
- break;
- case 3:
- priv->regs = (struct mxs_ssp_regs *)MXS_SSP3_BASE;
- break;
- }
+ priv->regs = mxs_ssp_regs_by_bus(id);
sprintf(mmc->name, "MXS MMC");
mmc->send_cmd = mxsmmc_send_cmd;
diff --git a/drivers/spi/mxs_spi.c b/drivers/spi/mxs_spi.c
index 42e4c99..31cd77d 100644
--- a/drivers/spi/mxs_spi.c
+++ b/drivers/spi/mxs_spi.c
@@ -80,7 +80,6 @@
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 @@
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);