From: Mario Six mario.six@gdsys.cc
Accesses to the register map are currently done by directly reading and writing the structure.
Switch to the appropriate IO accessors instead.
Signed-off-by: Mario Six mario.six@gdsys.cc --- drivers/spi/mpc8xxx_spi.c | 38 +++++++++++++++++++------------------- 1 file changed, 19 insertions(+), 19 deletions(-)
diff --git a/drivers/spi/mpc8xxx_spi.c b/drivers/spi/mpc8xxx_spi.c index 7b2ab1e4af..da9e1e3f98 100644 --- a/drivers/spi/mpc8xxx_spi.c +++ b/drivers/spi/mpc8xxx_spi.c @@ -58,21 +58,21 @@ void spi_free_slave(struct spi_slave *slave)
void spi_init(void) { - volatile spi8xxx_t *spi = &((immap_t *) (CONFIG_SYS_IMMR))->spi; + spi8xxx_t *spi = &((immap_t *)(CONFIG_SYS_IMMR))->spi;
/* * SPI pins on the MPC83xx are not muxed, so all we do is initialize * some registers */ - spi->mode = SPI_MODE_REV | SPI_MODE_MS | SPI_MODE_EN; + out_be32(&spi->mode, SPI_MODE_REV | SPI_MODE_MS | SPI_MODE_EN); /* Use SYSCLK / 8 (16.67MHz typ.) */ - spi->mode = (spi->mode & 0xfff0ffff) | BIT(16); + clrsetbits_be32(&spi->mode, 0x000f0000, BIT(16)); /* Clear all SPI events */ - spi->event = 0xffffffff; + setbits_be32(&spi->event, 0xffffffff); /* Mask all SPI interrupts */ - spi->mask = 0x00000000; + clrbits_be32(&spi->mask, 0xffffffff); /* LST bit doesn't do anything, so disregard */ - spi->com = 0; + out_be32(&spi->com, 0); }
int spi_claim_bus(struct spi_slave *slave) @@ -87,7 +87,7 @@ void spi_release_bus(struct spi_slave *slave) int spi_xfer(struct spi_slave *slave, uint bitlen, const void *dout, void *din, ulong flags) { - volatile spi8xxx_t *spi = &((immap_t *) (CONFIG_SYS_IMMR))->spi; + spi8xxx_t *spi = &((immap_t *)(CONFIG_SYS_IMMR))->spi; uint tmpdout, tmpdin, event; int num_blks = DIV_ROUND_UP(bitlen, 32); int tm, is_read = 0; @@ -100,7 +100,7 @@ int spi_xfer(struct spi_slave *slave, uint bitlen, const void *dout, void *din, spi_cs_activate(slave);
/* Clear all SPI events */ - spi->event = 0xffffffff; + setbits_be32(&spi->event, 0xffffffff);
/* Handle data in 32-bit chunks */ while (num_blks--) { @@ -118,26 +118,26 @@ int spi_xfer(struct spi_slave *slave, uint bitlen, const void *dout, void *din, * len > 16 0 */
- spi->mode &= ~SPI_MODE_EN; + clrbits_be32(&spi->mode, SPI_MODE_EN);
if (bitlen <= 16) { if (bitlen <= 4) - spi->mode = (spi->mode & 0xff0fffff) | - (3 << 20); + clrsetbits_be32(&spi->mode, 0x00f00000, + (3 << 20)); else - spi->mode = (spi->mode & 0xff0fffff) | - ((bitlen - 1) << 20); + clrsetbits_be32(&spi->mode, 0x00f00000, + ((bitlen - 1) << 20)); } else { - spi->mode = (spi->mode & 0xff0fffff); + clrbits_be32(&spi->mode, 0x00f00000); /* Set up the next iteration if sending > 32 bits */ bitlen -= 32; dout += 4; }
- spi->mode |= SPI_MODE_EN; + setbits_be32(&spi->mode, SPI_MODE_EN);
/* Write the data out */ - spi->tx = tmpdout; + out_be32(&spi->tx, tmpdout);
debug("*** %s: ... %08x written\n", __func__, tmpdout);
@@ -147,10 +147,10 @@ int spi_xfer(struct spi_slave *slave, uint bitlen, const void *dout, void *din, * The NE event must be read and cleared first */ for (tm = 0, is_read = 0; tm < SPI_TIMEOUT; ++tm) { - event = spi->event; + event = in_be32(&spi->event); if (event & SPI_EV_NE) { - tmpdin = spi->rx; - spi->event |= SPI_EV_NE; + tmpdin = in_be32(&spi->rx); + setbits_be32(&spi->event, SPI_EV_NE); is_read = 1;
*(u32 *)din = (tmpdin << (32 - char_size));