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path: root/drivers/spi/omap2_mcspi.c
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Diffstat (limited to 'drivers/spi/omap2_mcspi.c')
-rw-r--r--drivers/spi/omap2_mcspi.c18
1 files changed, 16 insertions, 2 deletions
diff --git a/drivers/spi/omap2_mcspi.c b/drivers/spi/omap2_mcspi.c
index 9d2186fd74aa..454a2712e629 100644
--- a/drivers/spi/omap2_mcspi.c
+++ b/drivers/spi/omap2_mcspi.c
@@ -119,12 +119,14 @@ struct omap2_mcspi {
119 struct clk *fck; 119 struct clk *fck;
120 /* Virtual base address of the controller */ 120 /* Virtual base address of the controller */
121 void __iomem *base; 121 void __iomem *base;
122 unsigned long phys;
122 /* SPI1 has 4 channels, while SPI2 has 2 */ 123 /* SPI1 has 4 channels, while SPI2 has 2 */
123 struct omap2_mcspi_dma *dma_channels; 124 struct omap2_mcspi_dma *dma_channels;
124}; 125};
125 126
126struct omap2_mcspi_cs { 127struct omap2_mcspi_cs {
127 void __iomem *base; 128 void __iomem *base;
129 unsigned long phys;
128 int word_len; 130 int word_len;
129}; 131};
130 132
@@ -233,7 +235,7 @@ omap2_mcspi_txrx_dma(struct spi_device *spi, struct spi_transfer *xfer)
233 c = count; 235 c = count;
234 word_len = cs->word_len; 236 word_len = cs->word_len;
235 237
236 base = (unsigned long) io_v2p(cs->base); 238 base = cs->phys;
237 tx_reg = base + OMAP2_MCSPI_TX0; 239 tx_reg = base + OMAP2_MCSPI_TX0;
238 rx_reg = base + OMAP2_MCSPI_RX0; 240 rx_reg = base + OMAP2_MCSPI_RX0;
239 rx = xfer->rx_buf; 241 rx = xfer->rx_buf;
@@ -633,6 +635,7 @@ static int omap2_mcspi_setup(struct spi_device *spi)
633 if (!cs) 635 if (!cs)
634 return -ENOMEM; 636 return -ENOMEM;
635 cs->base = mcspi->base + spi->chip_select * 0x14; 637 cs->base = mcspi->base + spi->chip_select * 0x14;
638 cs->phys = mcspi->phys + spi->chip_select * 0x14;
636 spi->controller_state = cs; 639 spi->controller_state = cs;
637 } 640 }
638 641
@@ -1005,7 +1008,13 @@ static int __init omap2_mcspi_probe(struct platform_device *pdev)
1005 goto err1; 1008 goto err1;
1006 } 1009 }
1007 1010
1008 mcspi->base = (void __iomem *) io_p2v(r->start); 1011 mcspi->phys = r->start;
1012 mcspi->base = ioremap(r->start, r->end - r->start + 1);
1013 if (!mcspi->base) {
1014 dev_dbg(&pdev->dev, "can't ioremap MCSPI\n");
1015 status = -ENOMEM;
1016 goto err1aa;
1017 }
1009 1018
1010 INIT_WORK(&mcspi->work, omap2_mcspi_work); 1019 INIT_WORK(&mcspi->work, omap2_mcspi_work);
1011 1020
@@ -1055,6 +1064,8 @@ err3:
1055err2: 1064err2:
1056 clk_put(mcspi->ick); 1065 clk_put(mcspi->ick);
1057err1a: 1066err1a:
1067 iounmap(mcspi->base);
1068err1aa:
1058 release_mem_region(r->start, (r->end - r->start) + 1); 1069 release_mem_region(r->start, (r->end - r->start) + 1);
1059err1: 1070err1:
1060 spi_master_put(master); 1071 spi_master_put(master);
@@ -1067,6 +1078,7 @@ static int __exit omap2_mcspi_remove(struct platform_device *pdev)
1067 struct omap2_mcspi *mcspi; 1078 struct omap2_mcspi *mcspi;
1068 struct omap2_mcspi_dma *dma_channels; 1079 struct omap2_mcspi_dma *dma_channels;
1069 struct resource *r; 1080 struct resource *r;
1081 void __iomem *base;
1070 1082
1071 master = dev_get_drvdata(&pdev->dev); 1083 master = dev_get_drvdata(&pdev->dev);
1072 mcspi = spi_master_get_devdata(master); 1084 mcspi = spi_master_get_devdata(master);
@@ -1078,7 +1090,9 @@ static int __exit omap2_mcspi_remove(struct platform_device *pdev)
1078 r = platform_get_resource(pdev, IORESOURCE_MEM, 0); 1090 r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
1079 release_mem_region(r->start, (r->end - r->start) + 1); 1091 release_mem_region(r->start, (r->end - r->start) + 1);
1080 1092
1093 base = mcspi->base;
1081 spi_unregister_master(master); 1094 spi_unregister_master(master);
1095 iounmap(base);
1082 kfree(dma_channels); 1096 kfree(dma_channels);
1083 1097
1084 return 0; 1098 return 0;