diff options
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/plat-mxc/dma-mx1-mx2.c | 53 |
1 files changed, 30 insertions, 23 deletions
diff --git a/arch/arm/plat-mxc/dma-mx1-mx2.c b/arch/arm/plat-mxc/dma-mx1-mx2.c index eddc965..e16014b 100644 --- a/arch/arm/plat-mxc/dma-mx1-mx2.c +++ b/arch/arm/plat-mxc/dma-mx1-mx2.c @@ -476,7 +476,8 @@ void imx_dma_enable(int channel) CCR_ACRPT, DMA_CCR(channel)); #ifdef CONFIG_ARCH_MX2 - if (imxdma->sg && imx_dma_hw_chain(imxdma)) { + if ((cpu_is_mx21() || cpu_is_mx27()) && + imxdma->sg && imx_dma_hw_chain(imxdma)) { imxdma->sg = sg_next(imxdma->sg); if (imxdma->sg) { u32 tmp; @@ -654,7 +655,8 @@ static irqreturn_t dma_irq_handler(int irq, void *dev_id) int i, disr; #ifdef CONFIG_ARCH_MX2 - dma_err_handler(irq, dev_id); + if (cpu_is_mx21() || cpu_is_mx27()) + dma_err_handler(irq, dev_id); #endif disr = imx_dmav1_readl(DMA_DISR); @@ -702,17 +704,19 @@ int imx_dma_request(int channel, const char *name) local_irq_restore(flags); /* request_irq() can block */ #ifdef CONFIG_ARCH_MX2 - ret = request_irq(MX2x_INT_DMACH0 + channel, dma_irq_handler, 0, "DMA", - NULL); - if (ret) { - imxdma->name = NULL; - printk(KERN_CRIT "Can't register IRQ %d for DMA channel %d\n", - MX2x_INT_DMACH0 + channel, channel); - return ret; + if (cpu_is_mx21() || cpu_is_mx27()) { + ret = request_irq(MX2x_INT_DMACH0 + channel, + dma_irq_handler, 0, "DMA", NULL); + if (ret) { + imxdma->name = NULL; + pr_crit("Can't register IRQ %d for DMA channel %d\n", + MX2x_INT_DMACH0 + channel, channel); + return ret; + } + init_timer(&imxdma->watchdog); + imxdma->watchdog.function = &imx_dma_watchdog; + imxdma->watchdog.data = channel; } - init_timer(&imxdma->watchdog); - imxdma->watchdog.function = &imx_dma_watchdog; - imxdma->watchdog.data = channel; #endif return ret; @@ -741,7 +745,8 @@ void imx_dma_free(int channel) imxdma->name = NULL; #ifdef CONFIG_ARCH_MX2 - free_irq(MX2x_INT_DMACH0 + channel, NULL); + if (cpu_is_mx21() || cpu_is_mx27()) + free_irq(MX2x_INT_DMACH0 + channel, NULL); #endif local_irq_restore(flags); @@ -823,17 +828,19 @@ static int __init imx_dma_init(void) imx_dmav1_writel(DCR_DRST, DMA_DCR); #ifdef CONFIG_ARCH_MX1 - ret = request_irq(DMA_INT, dma_irq_handler, 0, "DMA", NULL); - if (ret) { - printk(KERN_CRIT "Wow! Can't register IRQ for DMA\n"); - return ret; - } + if (cpu_is_mx1()) { + ret = request_irq(MX1_DMA_INT, dma_irq_handler, 0, "DMA", NULL); + if (ret) { + pr_crit("Wow! Can't register IRQ for DMA\n"); + return ret; + } - ret = request_irq(DMA_ERR, dma_err_handler, 0, "DMA", NULL); - if (ret) { - printk(KERN_CRIT "Wow! Can't register ERRIRQ for DMA\n"); - free_irq(DMA_INT, NULL); - return ret; + ret = request_irq(MX1_DMA_ERR, dma_err_handler, 0, "DMA", NULL); + if (ret) { + pr_crit("Wow! Can't register ERRIRQ for DMA\n"); + free_irq(MX1_DMA_INT, NULL); + return ret; + } } #endif /* enable DMA module */ |