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authorGrant Likely <grant.likely@secretlab.ca>2008-03-04 14:28:42 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2008-03-04 16:35:12 -0800
commit4874cc1b5142397d585c63d84b3d6d3afff60354 (patch)
tree21b02def0875103297139373d9f16f1852618a88 /drivers/spi
parent05680d86d21bdbe56db80c66c24c686590815f1f (diff)
powerpc: mpc5200: fix build error on mpc52xx_psc_spi device driver
Commit id 94f389485e27641348c1951ab8d65157122a8939 (Separate MPC52xx PSC FIOF regsiters from the rest of PSC) split the PSC fifo registers away from the core PSC regs. Doing so broke the mpc52xx_psc_spi driver. This patch teaches the mpc52xx_psc_spi driver about the new PSC fifo register definitions. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Cc: David Brownell <david-b@pacbell.net> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Kumar Gala <galak@gate.crashing.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/spi')
-rw-r--r--drivers/spi/mpc52xx_psc_spi.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/spi/mpc52xx_psc_spi.c b/drivers/spi/mpc52xx_psc_spi.c
index 253ed5682a6d..a86315a0c5b8 100644
--- a/drivers/spi/mpc52xx_psc_spi.c
+++ b/drivers/spi/mpc52xx_psc_spi.c
@@ -42,6 +42,7 @@ struct mpc52xx_psc_spi {
/* driver internal data */
struct mpc52xx_psc __iomem *psc;
+ struct mpc52xx_psc_fifo __iomem *fifo;
unsigned int irq;
u8 bits_per_word;
u8 busy;
@@ -139,6 +140,7 @@ static int mpc52xx_psc_spi_transfer_rxtx(struct spi_device *spi,
{
struct mpc52xx_psc_spi *mps = spi_master_get_devdata(spi->master);
struct mpc52xx_psc __iomem *psc = mps->psc;
+ struct mpc52xx_psc_fifo __iomem *fifo = mps->fifo;
unsigned rb = 0; /* number of bytes receieved */
unsigned sb = 0; /* number of bytes sent */
unsigned char *rx_buf = (unsigned char *)t->rx_buf;
@@ -190,11 +192,11 @@ static int mpc52xx_psc_spi_transfer_rxtx(struct spi_device *spi,
out_8(&psc->mode, 0);
} else {
out_8(&psc->mode, MPC52xx_PSC_MODE_FFULL);
- out_be16(&psc->rfalarm, rfalarm);
+ out_be16(&fifo->rfalarm, rfalarm);
}
out_be16(&psc->mpc52xx_psc_imr, MPC52xx_PSC_IMR_RXRDY);
wait_for_completion(&mps->done);
- recv_at_once = in_be16(&psc->rfnum);
+ recv_at_once = in_be16(&fifo->rfnum);
dev_dbg(&spi->dev, "%d bytes received\n", recv_at_once);
send_at_once = recv_at_once;
@@ -331,6 +333,7 @@ static void mpc52xx_psc_spi_cleanup(struct spi_device *spi)
static int mpc52xx_psc_spi_port_config(int psc_id, struct mpc52xx_psc_spi *mps)
{
struct mpc52xx_psc __iomem *psc = mps->psc;
+ struct mpc52xx_psc_fifo __iomem *fifo = mps->fifo;
u32 mclken_div;
int ret = 0;
@@ -346,7 +349,7 @@ static int mpc52xx_psc_spi_port_config(int psc_id, struct mpc52xx_psc_spi *mps)
/* Disable interrupts, interrupts are based on alarm level */
out_be16(&psc->mpc52xx_psc_imr, 0);
out_8(&psc->command, MPC52xx_PSC_SEL_MODE_REG_1);
- out_8(&psc->rfcntl, 0);
+ out_8(&fifo->rfcntl, 0);
out_8(&psc->mode, MPC52xx_PSC_MODE_FFULL);
/* Configure 8bit codec mode as a SPI master and use EOF flags */
@@ -419,6 +422,8 @@ static int __init mpc52xx_psc_spi_do_probe(struct device *dev, u32 regaddr,
ret = -EFAULT;
goto free_master;
}
+ /* On the 5200, fifo regs are immediately ajacent to the psc regs */
+ mps->fifo = ((void __iomem *)mps->psc) + sizeof(struct mpc52xx_psc);
ret = request_irq(mps->irq, mpc52xx_psc_spi_isr, 0, "mpc52xx-psc-spi",
mps);