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authorLinus Torvalds <torvalds@linux-foundation.org>2010-02-25 18:38:03 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2010-02-25 18:38:03 -0500
commitd7930c9ef9cc67044f5ddaac54d06ca22645a012 (patch)
tree32ec9ed98a7b5ff659de11886492b18abd421069 /drivers/spi/xilinx_spi.c
parentb6d97026561a6ed6eed58428633a6bb4e1b78c57 (diff)
parent4f4517c45f325ba511458465430a52864a5d0d30 (diff)
Merge branch 'next-spi' of git://git.secretlab.ca/git/linux-2.6
* 'next-spi' of git://git.secretlab.ca/git/linux-2.6: (31 commits) spi: Correct SPI clock frequency setting in spi_mpc8xxx spi/spi_s3c64xx.c: Fix continuation line formats spi/dw_spi: Fix dw_spi_mmio to depend on HAVE_CLK spi/dw_spi: Allow dw_spi.c to be a module spi/dw_spi: mmio code style fixups Memory-mapped dw_spi driver spi/dw_spi: fix missing export of dw_spi_remove_host spi/dw_spi: conditional transfer mode changes spi/dw_spi: remove conditional from 'poll_transfer'. spi/dw_spi: fixed a spelling typo in a warning message. spi/dw_spi: add return value to empty mrst_spi_debugfs_init() spi/dw_spi: enable platform specific chipselect. spi/dw_spi: add a FIFO depth detection spi/dw_spi: fix __init/__devinit section mismatch spi: xilinx_spi: Fix up I/O routine wrapping bogosity. spi/spi_imx: add device information by switching pr_debug() to dev_dbg() spi: update MSIOF includes spi/dw_spi: refine the IRQ mode working flow spi/dw_spi: add a missed dw_spi_remove_host() in exit sequence spi/dw_spi: bug fix in wait_till_not_busy() ...
Diffstat (limited to 'drivers/spi/xilinx_spi.c')
-rw-r--r--drivers/spi/xilinx_spi.c28
1 files changed, 24 insertions, 4 deletions
diff --git a/drivers/spi/xilinx_spi.c b/drivers/spi/xilinx_spi.c
index 9f386379c169..1b47363cb73f 100644
--- a/drivers/spi/xilinx_spi.c
+++ b/drivers/spi/xilinx_spi.c
@@ -93,6 +93,26 @@ struct xilinx_spi {
93 void (*rx_fn) (struct xilinx_spi *); 93 void (*rx_fn) (struct xilinx_spi *);
94}; 94};
95 95
96static void xspi_write32(u32 val, void __iomem *addr)
97{
98 iowrite32(val, addr);
99}
100
101static unsigned int xspi_read32(void __iomem *addr)
102{
103 return ioread32(addr);
104}
105
106static void xspi_write32_be(u32 val, void __iomem *addr)
107{
108 iowrite32be(val, addr);
109}
110
111static unsigned int xspi_read32_be(void __iomem *addr)
112{
113 return ioread32be(addr);
114}
115
96static void xspi_tx8(struct xilinx_spi *xspi) 116static void xspi_tx8(struct xilinx_spi *xspi)
97{ 117{
98 xspi->write_fn(*xspi->tx_ptr, xspi->regs + XSPI_TXD_OFFSET); 118 xspi->write_fn(*xspi->tx_ptr, xspi->regs + XSPI_TXD_OFFSET);
@@ -374,11 +394,11 @@ struct spi_master *xilinx_spi_init(struct device *dev, struct resource *mem,
374 xspi->mem = *mem; 394 xspi->mem = *mem;
375 xspi->irq = irq; 395 xspi->irq = irq;
376 if (pdata->little_endian) { 396 if (pdata->little_endian) {
377 xspi->read_fn = ioread32; 397 xspi->read_fn = xspi_read32;
378 xspi->write_fn = iowrite32; 398 xspi->write_fn = xspi_write32;
379 } else { 399 } else {
380 xspi->read_fn = ioread32be; 400 xspi->read_fn = xspi_read32_be;
381 xspi->write_fn = iowrite32be; 401 xspi->write_fn = xspi_write32_be;
382 } 402 }
383 xspi->bits_per_word = pdata->bits_per_word; 403 xspi->bits_per_word = pdata->bits_per_word;
384 if (xspi->bits_per_word == 8) { 404 if (xspi->bits_per_word == 8) {