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Diffstat (limited to 'arch/arm/mach-davinci/devices-da8xx.c')
-rw-r--r--arch/arm/mach-davinci/devices-da8xx.c125
1 files changed, 117 insertions, 8 deletions
diff --git a/arch/arm/mach-davinci/devices-da8xx.c b/arch/arm/mach-davinci/devices-da8xx.c
index beda8a4..625d4b6 100644
--- a/arch/arm/mach-davinci/devices-da8xx.c
+++ b/arch/arm/mach-davinci/devices-da8xx.c
@@ -38,12 +38,23 @@
#define DA8XX_EMAC_MDIO_BASE 0x01e24000
#define DA8XX_GPIO_BASE 0x01e26000
#define DA8XX_I2C1_BASE 0x01e28000
+#define DA8XX_SPI0_BASE 0x01c41000
+#define DA8XX_SPI1_BASE 0x01f0e000
#define DA8XX_EMAC_CTRL_REG_OFFSET 0x3000
#define DA8XX_EMAC_MOD_REG_OFFSET 0x2000
#define DA8XX_EMAC_RAM_OFFSET 0x0000
#define DA8XX_EMAC_CTRL_RAM_SIZE SZ_8K
+#define DA8XX_DMA_SPI0_RX EDMA_CTLR_CHAN(0, 14)
+#define DA8XX_DMA_SPI0_TX EDMA_CTLR_CHAN(0, 15)
+#define DA8XX_DMA_MMCSD0_RX EDMA_CTLR_CHAN(0, 16)
+#define DA8XX_DMA_MMCSD0_TX EDMA_CTLR_CHAN(0, 17)
+#define DA8XX_DMA_SPI1_RX EDMA_CTLR_CHAN(0, 18)
+#define DA8XX_DMA_SPI1_TX EDMA_CTLR_CHAN(0, 19)
+#define DA850_DMA_MMCSD1_RX EDMA_CTLR_CHAN(1, 28)
+#define DA850_DMA_MMCSD1_TX EDMA_CTLR_CHAN(1, 29)
+
void __iomem *da8xx_syscfg0_base;
void __iomem *da8xx_syscfg1_base;
@@ -573,13 +584,13 @@ static struct resource da8xx_mmcsd0_resources[] = {
.flags = IORESOURCE_IRQ,
},
{ /* DMA RX */
- .start = EDMA_CTLR_CHAN(0, 16),
- .end = EDMA_CTLR_CHAN(0, 16),
+ .start = DA8XX_DMA_MMCSD0_RX,
+ .end = DA8XX_DMA_MMCSD0_RX,
.flags = IORESOURCE_DMA,
},
{ /* DMA TX */
- .start = EDMA_CTLR_CHAN(0, 17),
- .end = EDMA_CTLR_CHAN(0, 17),
+ .start = DA8XX_DMA_MMCSD0_TX,
+ .end = DA8XX_DMA_MMCSD0_TX,
.flags = IORESOURCE_DMA,
},
};
@@ -610,13 +621,13 @@ static struct resource da850_mmcsd1_resources[] = {
.flags = IORESOURCE_IRQ,
},
{ /* DMA RX */
- .start = EDMA_CTLR_CHAN(1, 28),
- .end = EDMA_CTLR_CHAN(1, 28),
+ .start = DA850_DMA_MMCSD1_RX,
+ .end = DA850_DMA_MMCSD1_RX,
.flags = IORESOURCE_DMA,
},
{ /* DMA TX */
- .start = EDMA_CTLR_CHAN(1, 29),
- .end = EDMA_CTLR_CHAN(1, 29),
+ .start = DA850_DMA_MMCSD1_TX,
+ .end = DA850_DMA_MMCSD1_TX,
.flags = IORESOURCE_DMA,
},
};
@@ -725,3 +736,101 @@ int __init da8xx_register_cpuidle(void)
return platform_device_register(&da8xx_cpuidle_device);
}
+
+static struct resource da8xx_spi0_resources[] = {
+ [0] = {
+ .start = DA8XX_SPI0_BASE,
+ .end = DA8XX_SPI0_BASE + SZ_4K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = IRQ_DA8XX_SPINT0,
+ .end = IRQ_DA8XX_SPINT0,
+ .flags = IORESOURCE_IRQ,
+ },
+ [2] = {
+ .start = DA8XX_DMA_SPI0_RX,
+ .end = DA8XX_DMA_SPI0_RX,
+ .flags = IORESOURCE_DMA,
+ },
+ [3] = {
+ .start = DA8XX_DMA_SPI0_TX,
+ .end = DA8XX_DMA_SPI0_TX,
+ .flags = IORESOURCE_DMA,
+ },
+};
+
+static struct resource da8xx_spi1_resources[] = {
+ [0] = {
+ .start = DA8XX_SPI1_BASE,
+ .end = DA8XX_SPI1_BASE + SZ_4K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = IRQ_DA8XX_SPINT1,
+ .end = IRQ_DA8XX_SPINT1,
+ .flags = IORESOURCE_IRQ,
+ },
+ [2] = {
+ .start = DA8XX_DMA_SPI1_RX,
+ .end = DA8XX_DMA_SPI1_RX,
+ .flags = IORESOURCE_DMA,
+ },
+ [3] = {
+ .start = DA8XX_DMA_SPI1_TX,
+ .end = DA8XX_DMA_SPI1_TX,
+ .flags = IORESOURCE_DMA,
+ },
+};
+
+struct davinci_spi_platform_data da8xx_spi_pdata[] = {
+ [0] = {
+ .version = SPI_VERSION_2,
+ .intr_line = 1,
+ .dma_event_q = EVENTQ_0,
+ },
+ [1] = {
+ .version = SPI_VERSION_2,
+ .intr_line = 1,
+ .dma_event_q = EVENTQ_0,
+ },
+};
+
+static struct platform_device da8xx_spi_device[] = {
+ [0] = {
+ .name = "spi_davinci",
+ .id = 0,
+ .num_resources = ARRAY_SIZE(da8xx_spi0_resources),
+ .resource = da8xx_spi0_resources,
+ .dev = {
+ .platform_data = &da8xx_spi_pdata[0],
+ },
+ },
+ [1] = {
+ .name = "spi_davinci",
+ .id = 1,
+ .num_resources = ARRAY_SIZE(da8xx_spi1_resources),
+ .resource = da8xx_spi1_resources,
+ .dev = {
+ .platform_data = &da8xx_spi_pdata[1],
+ },
+ },
+};
+
+int __init da8xx_register_spi(int instance, struct spi_board_info *info,
+ unsigned len)
+{
+ int ret;
+
+ if (instance < 0 || instance > 1)
+ return -EINVAL;
+
+ ret = spi_register_board_info(info, len);
+ if (ret)
+ pr_warning("%s: failed to register board info for spi %d :"
+ " %d\n", __func__, instance, ret);
+
+ da8xx_spi_pdata[instance].num_chipselect = len;
+
+ return platform_device_register(&da8xx_spi_device[instance]);
+}