diff options
Diffstat (limited to 'arch/arm/mach-imx/dma-v1.c')
| -rw-r--r-- | arch/arm/mach-imx/dma-v1.c | 26 |
1 files changed, 4 insertions, 22 deletions
diff --git a/arch/arm/mach-imx/dma-v1.c b/arch/arm/mach-imx/dma-v1.c index 236f1495efa..42afc29a7da 100644 --- a/arch/arm/mach-imx/dma-v1.c +++ b/arch/arm/mach-imx/dma-v1.c @@ -26,6 +26,7 @@ #include <linux/init.h> #include <linux/kernel.h> #include <linux/interrupt.h> +#include <linux/err.h> #include <linux/errno.h> #include <linux/clk.h> #include <linux/scatterlist.h> @@ -475,7 +476,6 @@ void imx_dma_enable(int channel) imx_dmav1_writel(imx_dmav1_readl(DMA_CCR(channel)) | CCR_CEN | CCR_ACRPT, DMA_CCR(channel)); -#ifdef CONFIG_ARCH_MX2 if ((cpu_is_mx21() || cpu_is_mx27()) && imxdma->sg && imx_dma_hw_chain(imxdma)) { imxdma->sg = sg_next(imxdma->sg); @@ -487,7 +487,6 @@ void imx_dma_enable(int channel) DMA_CCR(channel)); } } -#endif imxdma->in_use = 1; local_irq_restore(flags); @@ -518,7 +517,6 @@ void imx_dma_disable(int channel) } EXPORT_SYMBOL(imx_dma_disable); -#ifdef CONFIG_ARCH_MX2 static void imx_dma_watchdog(unsigned long chno) { struct imx_dma_channel *imxdma = &imx_dma_channels[chno]; @@ -530,7 +528,6 @@ static void imx_dma_watchdog(unsigned long chno) if (imxdma->err_handler) imxdma->err_handler(chno, imxdma->data, IMX_DMA_ERR_TIMEOUT); } -#endif static irqreturn_t dma_err_handler(int irq, void *dev_id) { @@ -654,10 +651,8 @@ static irqreturn_t dma_irq_handler(int irq, void *dev_id) { int i, disr; -#ifdef CONFIG_ARCH_MX2 if (cpu_is_mx21() || cpu_is_mx27()) dma_err_handler(irq, dev_id); -#endif disr = imx_dmav1_readl(DMA_DISR); @@ -703,7 +698,6 @@ int imx_dma_request(int channel, const char *name) imxdma->name = name; local_irq_restore(flags); /* request_irq() can block */ -#ifdef CONFIG_ARCH_MX2 if (cpu_is_mx21() || cpu_is_mx27()) { ret = request_irq(MX2x_INT_DMACH0 + channel, dma_irq_handler, 0, "DMA", NULL); @@ -717,7 +711,6 @@ int imx_dma_request(int channel, const char *name) imxdma->watchdog.function = &imx_dma_watchdog; imxdma->watchdog.data = channel; } -#endif return ret; } @@ -744,10 +737,8 @@ void imx_dma_free(int channel) imx_dma_disable(channel); imxdma->name = NULL; -#ifdef CONFIG_ARCH_MX2 if (cpu_is_mx21() || cpu_is_mx27()) free_irq(MX2x_INT_DMACH0 + channel, NULL); -#endif local_irq_restore(flags); } @@ -803,21 +794,13 @@ static int __init imx_dma_init(void) int ret = 0; int i; -#ifdef CONFIG_ARCH_MX1 if (cpu_is_mx1()) imx_dmav1_baseaddr = MX1_IO_ADDRESS(MX1_DMA_BASE_ADDR); - else -#endif -#ifdef CONFIG_MACH_MX21 - if (cpu_is_mx21()) + else if (cpu_is_mx21()) imx_dmav1_baseaddr = MX21_IO_ADDRESS(MX21_DMA_BASE_ADDR); - else -#endif -#ifdef CONFIG_MACH_MX27 - if (cpu_is_mx27()) + else if (cpu_is_mx27()) imx_dmav1_baseaddr = MX27_IO_ADDRESS(MX27_DMA_BASE_ADDR); else -#endif return 0; dma_clk = clk_get(NULL, "dma"); @@ -828,7 +811,6 @@ static int __init imx_dma_init(void) /* reset DMA module */ imx_dmav1_writel(DCR_DRST, DMA_DCR); -#ifdef CONFIG_ARCH_MX1 if (cpu_is_mx1()) { ret = request_irq(MX1_DMA_INT, dma_irq_handler, 0, "DMA", NULL); if (ret) { @@ -843,7 +825,7 @@ static int __init imx_dma_init(void) return ret; } } -#endif + /* enable DMA module */ imx_dmav1_writel(DCR_DEN, DMA_DCR); |