leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

powerpc/mpc5200: fix build warnings on mpc52xx_psc_spi driver

Browse Source 
The register definitions have been changed for the mpc5200 PSC ports
to cover some of the changes in the mpc5200b.  One change is that the
ccr register is now a u32 instead of a u16.  However, for the purposes
of this driver we want to continue to use 16 bit access to avoid
changing the existing (working) behaviour.

This patch allows the driver to continue to do 16 bit accesses without
the compiler complaining about it.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
This commit is contained in:
Grant Likely 2008-10-08 09:02:11 -06:00
parent 7c12d906f4
commit a897ea13f7
1 changed files with 3 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/spi/mpc52xx_psc_spi.c
View File

@ -108,13 +108,13 @@ static void mpc52xx_psc_spi_activate_cs(struct spi_device *spi)
* Because psc->ccr is defined as 16bit register instead of 32bit
* just set the lower byte of BitClkDiv
*/
ccr = in_be16(&psc->ccr);
ccr = in_be16((u16 __iomem *)&psc->ccr);
ccr &= 0xFF00;
if (cs->speed_hz)
ccr |= (MCLK / cs->speed_hz - 1) & 0xFF;
else /* by default SPI Clk 1MHz */
ccr |= (MCLK / 1000000 - 1) & 0xFF;
out_be16(&psc->ccr, ccr);
out_be16((u16 __iomem *)&psc->ccr, ccr);
mps->bits_per_word = cs->bits_per_word;
if (mps->activate_cs)
@ -347,7 +347,7 @@ static int mpc52xx_psc_spi_port_config(int psc_id, struct mpc52xx_psc_spi *mps)
/* Configure 8bit codec mode as a SPI master and use EOF flags */
/* SICR_SIM_CODEC8|SICR_GENCLK|SICR_SPI|SICR_MSTR|SICR_USEEOF */
out_be32(&psc->sicr, 0x0180C800);
out_be16(&psc->ccr, 0x070F); /* by default SPI Clk 1MHz */
out_be16((u16 __iomem *)&psc->ccr, 0x070F); /* default SPI Clk 1MHz */
/* Set 2ms DTL delay */
out_8(&psc->ctur, 0x00);