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| author | Eric Miao <eric.y.miao@gmail.com> | 2010-03-16 16:48:01 +0800 |
|---|---|---|
| committer | Eric Miao <eric.y.miao@gmail.com> | 2010-05-11 17:24:57 +0200 |
| commit | c9840daa70fbb8f6031fcd1f254a3da49a41ea7b (patch) | |
| tree | df95f94209b05cca7250b45cc694f15be51e5c50 /drivers/spi | |
| parent | 793ffb9ed3179906760874689a99d4863d76914e (diff) | |
| download | linux-3.10-c9840daa70fbb8f6031fcd1f254a3da49a41ea7b.tar.gz linux-3.10-c9840daa70fbb8f6031fcd1f254a3da49a41ea7b.tar.bz2 linux-3.10-c9840daa70fbb8f6031fcd1f254a3da49a41ea7b.zip | |
[ARM] pxa: correct SSCR0_SCR to support multiple SoCs
The previous definitions of SSCR0_SCR and SSCR0_SerClkDiv() prevented
them being used simultaneously when supporting multiple PXA SoCs, esp.
in drivers/spi/pxa2xx_spi.c, make them correct.
The change from SSCR0_SerClkDiv(2) to SSCR0_SCR(2), will make the result
a little bit different in pxa2xx_spi_probe(), however, since that's only
used as a default initialization value, it's acceptable.
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
Diffstat (limited to 'drivers/spi')
| -rw-r--r-- | drivers/spi/pxa2xx_spi.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/drivers/spi/pxa2xx_spi.c b/drivers/spi/pxa2xx_spi.c index 36828358a4d..35d4e5cdb63 100644 --- a/drivers/spi/pxa2xx_spi.c +++ b/drivers/spi/pxa2xx_spi.c @@ -1318,14 +1318,14 @@ static int setup(struct spi_device *spi) /* NOTE: PXA25x_SSP _could_ use external clocking ... */ if (drv_data->ssp_type != PXA25x_SSP) dev_dbg(&spi->dev, "%ld Hz actual, %s\n", - clk_get_rate(ssp->clk) - / (1 + ((chip->cr0 & SSCR0_SCR) >> 8)), - chip->enable_dma ? "DMA" : "PIO"); + clk_get_rate(ssp->clk) + / (1 + ((chip->cr0 & SSCR0_SCR(0xfff)) >> 8)), + chip->enable_dma ? "DMA" : "PIO"); else dev_dbg(&spi->dev, "%ld Hz actual, %s\n", - clk_get_rate(ssp->clk) / 2 - / (1 + ((chip->cr0 & SSCR0_SCR) >> 8)), - chip->enable_dma ? "DMA" : "PIO"); + clk_get_rate(ssp->clk) / 2 + / (1 + ((chip->cr0 & SSCR0_SCR(0x0ff)) >> 8)), + chip->enable_dma ? "DMA" : "PIO"); if (spi->bits_per_word <= 8) { chip->n_bytes = 1; @@ -1558,7 +1558,7 @@ static int __init pxa2xx_spi_probe(struct platform_device *pdev) write_SSCR1(SSCR1_RxTresh(RX_THRESH_DFLT) | SSCR1_TxTresh(TX_THRESH_DFLT), drv_data->ioaddr); - write_SSCR0(SSCR0_SerClkDiv(2) + write_SSCR0(SSCR0_SCR(2) | SSCR0_Motorola | SSCR0_DataSize(8), drv_data->ioaddr); |