From e9f49d4183759e4d8469ac86189ef8bc4374cccc Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Wed, 17 Feb 2010 19:37:05 +0100 Subject: arm/imx/dma-v1: don't use deprecated symbols DMA_BASE and MXC_INT_DMACH0 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Uwe Kleine-König --- arch/arm/plat-mxc/dma-mx1-mx2.c | 160 ++++++++++++++++++++++------------------ 1 file changed, 90 insertions(+), 70 deletions(-) (limited to 'arch/arm/plat-mxc/dma-mx1-mx2.c') diff --git a/arch/arm/plat-mxc/dma-mx1-mx2.c b/arch/arm/plat-mxc/dma-mx1-mx2.c index 9c1b3f9c4f4d..eddc96594ec6 100644 --- a/arch/arm/plat-mxc/dma-mx1-mx2.c +++ b/arch/arm/plat-mxc/dma-mx1-mx2.c @@ -128,6 +128,18 @@ struct imx_dma_channel { int hw_chaining; }; +static void __iomem *imx_dmav1_baseaddr; + +static void imx_dmav1_writel(unsigned val, unsigned offset) +{ + __raw_writel(val, imx_dmav1_baseaddr + offset); +} + +static unsigned imx_dmav1_readl(unsigned offset) +{ + return __raw_readl(imx_dmav1_baseaddr + offset); +} + static struct imx_dma_channel imx_dma_channels[IMX_DMA_CHANNELS]; static struct clk *dma_clk; @@ -140,7 +152,6 @@ static int imx_dma_hw_chain(struct imx_dma_channel *imxdma) return 0; } - /* * imx_dma_sg_next - prepare next chunk for scatter-gather DMA emulation */ @@ -160,17 +171,17 @@ static inline int imx_dma_sg_next(int channel, struct scatterlist *sg) imxdma->resbytes -= now; if ((imxdma->dma_mode & DMA_MODE_MASK) == DMA_MODE_READ) - __raw_writel(sg->dma_address, DMA_BASE + DMA_DAR(channel)); + imx_dmav1_writel(sg->dma_address, DMA_DAR(channel)); else - __raw_writel(sg->dma_address, DMA_BASE + DMA_SAR(channel)); + imx_dmav1_writel(sg->dma_address, DMA_SAR(channel)); - __raw_writel(now, DMA_BASE + DMA_CNTR(channel)); + imx_dmav1_writel(now, DMA_CNTR(channel)); pr_debug("imxdma%d: next sg chunk dst 0x%08x, src 0x%08x, " "size 0x%08x\n", channel, - __raw_readl(DMA_BASE + DMA_DAR(channel)), - __raw_readl(DMA_BASE + DMA_SAR(channel)), - __raw_readl(DMA_BASE + DMA_CNTR(channel))); + imx_dmav1_readl(DMA_DAR(channel)), + imx_dmav1_readl(DMA_SAR(channel)), + imx_dmav1_readl(DMA_CNTR(channel))); return now; } @@ -218,27 +229,26 @@ imx_dma_setup_single(int channel, dma_addr_t dma_address, channel, __func__, (unsigned int)dma_address, dma_length, dev_addr); - __raw_writel(dev_addr, DMA_BASE + DMA_SAR(channel)); - __raw_writel(dma_address, DMA_BASE + DMA_DAR(channel)); - __raw_writel(imxdma->ccr_from_device, - DMA_BASE + DMA_CCR(channel)); + imx_dmav1_writel(dev_addr, DMA_SAR(channel)); + imx_dmav1_writel(dma_address, DMA_DAR(channel)); + imx_dmav1_writel(imxdma->ccr_from_device, DMA_CCR(channel)); } else if ((dmamode & DMA_MODE_MASK) == DMA_MODE_WRITE) { pr_debug("imxdma%d: %s dma_addressg=0x%08x dma_length=%d " "dev_addr=0x%08x for write\n", channel, __func__, (unsigned int)dma_address, dma_length, dev_addr); - __raw_writel(dma_address, DMA_BASE + DMA_SAR(channel)); - __raw_writel(dev_addr, DMA_BASE + DMA_DAR(channel)); - __raw_writel(imxdma->ccr_to_device, - DMA_BASE + DMA_CCR(channel)); + imx_dmav1_writel(dma_address, DMA_SAR(channel)); + imx_dmav1_writel(dev_addr, DMA_DAR(channel)); + imx_dmav1_writel(imxdma->ccr_to_device, + DMA_CCR(channel)); } else { printk(KERN_ERR "imxdma%d: imx_dma_setup_single bad dmamode\n", channel); return -EINVAL; } - __raw_writel(dma_length, DMA_BASE + DMA_CNTR(channel)); + imx_dmav1_writel(dma_length, DMA_CNTR(channel)); return 0; } @@ -316,17 +326,15 @@ imx_dma_setup_sg(int channel, "dev_addr=0x%08x for read\n", channel, __func__, sg, sgcount, dma_length, dev_addr); - __raw_writel(dev_addr, DMA_BASE + DMA_SAR(channel)); - __raw_writel(imxdma->ccr_from_device, - DMA_BASE + DMA_CCR(channel)); + imx_dmav1_writel(dev_addr, DMA_SAR(channel)); + imx_dmav1_writel(imxdma->ccr_from_device, DMA_CCR(channel)); } else if ((dmamode & DMA_MODE_MASK) == DMA_MODE_WRITE) { pr_debug("imxdma%d: %s sg=%p sgcount=%d total length=%d " "dev_addr=0x%08x for write\n", channel, __func__, sg, sgcount, dma_length, dev_addr); - __raw_writel(dev_addr, DMA_BASE + DMA_DAR(channel)); - __raw_writel(imxdma->ccr_to_device, - DMA_BASE + DMA_CCR(channel)); + imx_dmav1_writel(dev_addr, DMA_DAR(channel)); + imx_dmav1_writel(imxdma->ccr_to_device, DMA_CCR(channel)); } else { printk(KERN_ERR "imxdma%d: imx_dma_setup_sg bad dmamode\n", channel); @@ -360,7 +368,7 @@ imx_dma_config_channel(int channel, unsigned int config_port, imxdma->ccr_from_device = config_port | (config_mem << 2) | dreq; imxdma->ccr_to_device = config_mem | (config_port << 2) | dreq; - __raw_writel(dmareq, DMA_BASE + DMA_RSSR(channel)); + imx_dmav1_writel(dmareq, DMA_RSSR(channel)); return 0; } @@ -368,7 +376,7 @@ EXPORT_SYMBOL(imx_dma_config_channel); void imx_dma_config_burstlen(int channel, unsigned int burstlen) { - __raw_writel(burstlen, DMA_BASE + DMA_BLR(channel)); + imx_dmav1_writel(burstlen, DMA_BLR(channel)); } EXPORT_SYMBOL(imx_dma_config_burstlen); @@ -398,7 +406,7 @@ imx_dma_setup_handlers(int channel, } local_irq_save(flags); - __raw_writel(1 << channel, DMA_BASE + DMA_DISR); + imx_dmav1_writel(1 << channel, DMA_DISR); imxdma->irq_handler = irq_handler; imxdma->err_handler = err_handler; imxdma->data = data; @@ -462,12 +470,10 @@ void imx_dma_enable(int channel) local_irq_save(flags); - __raw_writel(1 << channel, DMA_BASE + DMA_DISR); - __raw_writel(__raw_readl(DMA_BASE + DMA_DIMR) & ~(1 << channel), - DMA_BASE + DMA_DIMR); - __raw_writel(__raw_readl(DMA_BASE + DMA_CCR(channel)) | CCR_CEN | - CCR_ACRPT, - DMA_BASE + DMA_CCR(channel)); + imx_dmav1_writel(1 << channel, DMA_DISR); + imx_dmav1_writel(imx_dmav1_readl(DMA_DIMR) & ~(1 << channel), DMA_DIMR); + imx_dmav1_writel(imx_dmav1_readl(DMA_CCR(channel)) | CCR_CEN | + CCR_ACRPT, DMA_CCR(channel)); #ifdef CONFIG_ARCH_MX2 if (imxdma->sg && imx_dma_hw_chain(imxdma)) { @@ -475,9 +481,9 @@ void imx_dma_enable(int channel) if (imxdma->sg) { u32 tmp; imx_dma_sg_next(channel, imxdma->sg); - tmp = __raw_readl(DMA_BASE + DMA_CCR(channel)); - __raw_writel(tmp | CCR_RPT | CCR_ACRPT, - DMA_BASE + DMA_CCR(channel)); + tmp = imx_dmav1_readl(DMA_CCR(channel)); + imx_dmav1_writel(tmp | CCR_RPT | CCR_ACRPT, + DMA_CCR(channel)); } } #endif @@ -502,11 +508,10 @@ void imx_dma_disable(int channel) del_timer(&imxdma->watchdog); local_irq_save(flags); - __raw_writel(__raw_readl(DMA_BASE + DMA_DIMR) | (1 << channel), - DMA_BASE + DMA_DIMR); - __raw_writel(__raw_readl(DMA_BASE + DMA_CCR(channel)) & ~CCR_CEN, - DMA_BASE + DMA_CCR(channel)); - __raw_writel(1 << channel, DMA_BASE + DMA_DISR); + imx_dmav1_writel(imx_dmav1_readl(DMA_DIMR) | (1 << channel), DMA_DIMR); + imx_dmav1_writel(imx_dmav1_readl(DMA_CCR(channel)) & ~CCR_CEN, + DMA_CCR(channel)); + imx_dmav1_writel(1 << channel, DMA_DISR); imxdma->in_use = 0; local_irq_restore(flags); } @@ -517,7 +522,7 @@ static void imx_dma_watchdog(unsigned long chno) { struct imx_dma_channel *imxdma = &imx_dma_channels[chno]; - __raw_writel(0, DMA_BASE + DMA_CCR(chno)); + imx_dmav1_writel(0, DMA_CCR(chno)); imxdma->in_use = 0; imxdma->sg = NULL; @@ -533,17 +538,17 @@ static irqreturn_t dma_err_handler(int irq, void *dev_id) unsigned int err_mask; int errcode; - disr = __raw_readl(DMA_BASE + DMA_DISR); + disr = imx_dmav1_readl(DMA_DISR); - err_mask = __raw_readl(DMA_BASE + DMA_DBTOSR) | - __raw_readl(DMA_BASE + DMA_DRTOSR) | - __raw_readl(DMA_BASE + DMA_DSESR) | - __raw_readl(DMA_BASE + DMA_DBOSR); + err_mask = imx_dmav1_readl(DMA_DBTOSR) | + imx_dmav1_readl(DMA_DRTOSR) | + imx_dmav1_readl(DMA_DSESR) | + imx_dmav1_readl(DMA_DBOSR); if (!err_mask) return IRQ_HANDLED; - __raw_writel(disr & err_mask, DMA_BASE + DMA_DISR); + imx_dmav1_writel(disr & err_mask, DMA_DISR); for (i = 0; i < IMX_DMA_CHANNELS; i++) { if (!(err_mask & (1 << i))) @@ -551,20 +556,20 @@ static irqreturn_t dma_err_handler(int irq, void *dev_id) imxdma = &imx_dma_channels[i]; errcode = 0; - if (__raw_readl(DMA_BASE + DMA_DBTOSR) & (1 << i)) { - __raw_writel(1 << i, DMA_BASE + DMA_DBTOSR); + if (imx_dmav1_readl(DMA_DBTOSR) & (1 << i)) { + imx_dmav1_writel(1 << i, DMA_DBTOSR); errcode |= IMX_DMA_ERR_BURST; } - if (__raw_readl(DMA_BASE + DMA_DRTOSR) & (1 << i)) { - __raw_writel(1 << i, DMA_BASE + DMA_DRTOSR); + if (imx_dmav1_readl(DMA_DRTOSR) & (1 << i)) { + imx_dmav1_writel(1 << i, DMA_DRTOSR); errcode |= IMX_DMA_ERR_REQUEST; } - if (__raw_readl(DMA_BASE + DMA_DSESR) & (1 << i)) { - __raw_writel(1 << i, DMA_BASE + DMA_DSESR); + if (imx_dmav1_readl(DMA_DSESR) & (1 << i)) { + imx_dmav1_writel(1 << i, DMA_DSESR); errcode |= IMX_DMA_ERR_TRANSFER; } - if (__raw_readl(DMA_BASE + DMA_DBOSR) & (1 << i)) { - __raw_writel(1 << i, DMA_BASE + DMA_DBOSR); + if (imx_dmav1_readl(DMA_DBOSR) & (1 << i)) { + imx_dmav1_writel(1 << i, DMA_DBOSR); errcode |= IMX_DMA_ERR_BUFFER; } if (imxdma->name && imxdma->err_handler) { @@ -607,7 +612,7 @@ static void dma_irq_handle_channel(int chno) if (imxdma->sg) { imx_dma_sg_next(chno, imxdma->sg); - tmp = __raw_readl(DMA_BASE + DMA_CCR(chno)); + tmp = imx_dmav1_readl(DMA_CCR(chno)); if (imx_dma_hw_chain(imxdma)) { /* FIXME: The timeout should probably be @@ -617,15 +622,13 @@ static void dma_irq_handle_channel(int chno) jiffies + msecs_to_jiffies(500)); tmp |= CCR_CEN | CCR_RPT | CCR_ACRPT; - __raw_writel(tmp, DMA_BASE + - DMA_CCR(chno)); + imx_dmav1_writel(tmp, DMA_CCR(chno)); } else { - __raw_writel(tmp & ~CCR_CEN, DMA_BASE + - DMA_CCR(chno)); + imx_dmav1_writel(tmp & ~CCR_CEN, DMA_CCR(chno)); tmp |= CCR_CEN; } - __raw_writel(tmp, DMA_BASE + DMA_CCR(chno)); + imx_dmav1_writel(tmp, DMA_CCR(chno)); if (imxdma->prog_handler) imxdma->prog_handler(chno, imxdma->data, @@ -640,7 +643,7 @@ static void dma_irq_handle_channel(int chno) } } - __raw_writel(0, DMA_BASE + DMA_CCR(chno)); + imx_dmav1_writel(0, DMA_CCR(chno)); imxdma->in_use = 0; if (imxdma->irq_handler) imxdma->irq_handler(chno, imxdma->data); @@ -654,12 +657,12 @@ static irqreturn_t dma_irq_handler(int irq, void *dev_id) dma_err_handler(irq, dev_id); #endif - disr = __raw_readl(DMA_BASE + DMA_DISR); + disr = imx_dmav1_readl(DMA_DISR); pr_debug("imxdma: dma_irq_handler called, disr=0x%08x\n", disr); - __raw_writel(disr, DMA_BASE + DMA_DISR); + imx_dmav1_writel(disr, DMA_DISR); for (i = 0; i < IMX_DMA_CHANNELS; i++) { if (disr & (1 << i)) dma_irq_handle_channel(i); @@ -699,12 +702,12 @@ int imx_dma_request(int channel, const char *name) local_irq_restore(flags); /* request_irq() can block */ #ifdef CONFIG_ARCH_MX2 - ret = request_irq(MXC_INT_DMACH0 + channel, dma_irq_handler, 0, "DMA", + 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", - MXC_INT_DMACH0 + channel, channel); + MX2x_INT_DMACH0 + channel, channel); return ret; } init_timer(&imxdma->watchdog); @@ -738,7 +741,7 @@ void imx_dma_free(int channel) imxdma->name = NULL; #ifdef CONFIG_ARCH_MX2 - free_irq(MXC_INT_DMACH0 + channel, NULL); + free_irq(MX2x_INT_DMACH0 + channel, NULL); #endif local_irq_restore(flags); @@ -796,11 +799,28 @@ 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()) + imx_dmav1_baseaddr = MX21_IO_ADDRESS(MX21_DMA_BASE_ADDR); + else +#endif +#ifdef CONFIG_MACH_MX27 + if (cpu_is_mx27()) + imx_dmav1_baseaddr = MX27_IO_ADDRESS(MX27_DMA_BASE_ADDR); + else +#endif + BUG(); + dma_clk = clk_get(NULL, "dma"); clk_enable(dma_clk); /* reset DMA module */ - __raw_writel(DCR_DRST, DMA_BASE + DMA_DCR); + imx_dmav1_writel(DCR_DRST, DMA_DCR); #ifdef CONFIG_ARCH_MX1 ret = request_irq(DMA_INT, dma_irq_handler, 0, "DMA", NULL); @@ -817,13 +837,13 @@ static int __init imx_dma_init(void) } #endif /* enable DMA module */ - __raw_writel(DCR_DEN, DMA_BASE + DMA_DCR); + imx_dmav1_writel(DCR_DEN, DMA_DCR); /* clear all interrupts */ - __raw_writel((1 << IMX_DMA_CHANNELS) - 1, DMA_BASE + DMA_DISR); + imx_dmav1_writel((1 << IMX_DMA_CHANNELS) - 1, DMA_DISR); /* disable interrupts */ - __raw_writel((1 << IMX_DMA_CHANNELS) - 1, DMA_BASE + DMA_DIMR); + imx_dmav1_writel((1 << IMX_DMA_CHANNELS) - 1, DMA_DIMR); for (i = 0; i < IMX_DMA_CHANNELS; i++) { imx_dma_channels[i].sg = NULL; -- cgit v1.2.1 From 8735fde2d0c42ae914d3e68d967612ff417f463c Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Wed, 17 Feb 2010 22:17:43 +0100 Subject: arm/imx/dma-v1: protect #ifdef'd blocks additionally by cpu_is_... MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This is necessary for a multi-SoC kernel. Signed-off-by: Uwe Kleine-König --- arch/arm/plat-mxc/dma-mx1-mx2.c | 53 +++++++++++++++++++++++------------------ 1 file changed, 30 insertions(+), 23 deletions(-) (limited to 'arch/arm/plat-mxc/dma-mx1-mx2.c') diff --git a/arch/arm/plat-mxc/dma-mx1-mx2.c b/arch/arm/plat-mxc/dma-mx1-mx2.c index eddc96594ec6..e16014b0d13c 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 */ -- cgit v1.2.1