diff options
Diffstat (limited to 'target/linux/lantiq/patches-3.6/0102-MIPS-lantiq-fixes-dma-irq-ack.patch')
| -rw-r--r-- | target/linux/lantiq/patches-3.6/0102-MIPS-lantiq-fixes-dma-irq-ack.patch | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/target/linux/lantiq/patches-3.6/0102-MIPS-lantiq-fixes-dma-irq-ack.patch b/target/linux/lantiq/patches-3.6/0102-MIPS-lantiq-fixes-dma-irq-ack.patch new file mode 100644 index 0000000000..89bcd709b6 --- /dev/null +++ b/target/linux/lantiq/patches-3.6/0102-MIPS-lantiq-fixes-dma-irq-ack.patch @@ -0,0 +1,62 @@ +From 671f34ea864ddc353f32272b3a2f7ee62d6f8548 Mon Sep 17 00:00:00 2001 +From: John Crispin <blogic@openwrt.org> +Date: Thu, 1 Nov 2012 20:50:39 +0100 +Subject: [PATCH 102/113] MIPS: lantiq: fixes dma irq ack + +--- + arch/mips/lantiq/xway/dma.c | 11 ++++++++++- + 1 file changed, 10 insertions(+), 1 deletion(-) + +diff --git a/arch/mips/lantiq/xway/dma.c b/arch/mips/lantiq/xway/dma.c +index 55d2c4f..a301b3b 100644 +--- a/arch/mips/lantiq/xway/dma.c ++++ b/arch/mips/lantiq/xway/dma.c +@@ -25,6 +25,7 @@ + #include <lantiq_soc.h> + #include <xway_dma.h> + ++#define LTQ_DMA_ID 0x08 + #define LTQ_DMA_CTRL 0x10 + #define LTQ_DMA_CPOLL 0x14 + #define LTQ_DMA_CS 0x18 +@@ -89,7 +90,7 @@ ltq_dma_ack_irq(struct ltq_dma_channel *ch) + + local_irq_save(flags); + ltq_dma_w32(ch->nr, LTQ_DMA_CS); +- ltq_dma_w32(DMA_IRQ_ACK, LTQ_DMA_CIS); ++ ltq_dma_w32(ltq_dma_r32(LTQ_DMA_CIS), LTQ_DMA_CIS); + local_irq_restore(flags); + } + EXPORT_SYMBOL_GPL(ltq_dma_ack_irq); +@@ -103,6 +104,7 @@ ltq_dma_open(struct ltq_dma_channel *ch) + ltq_dma_w32(ch->nr, LTQ_DMA_CS); + ltq_dma_w32_mask(0, DMA_CHAN_ON, LTQ_DMA_CCTRL); + ltq_dma_enable_irq(ch); ++ ltq_dma_ack_irq(ch); + local_irq_restore(flag); + } + EXPORT_SYMBOL_GPL(ltq_dma_open); +@@ -214,6 +216,7 @@ ltq_dma_init(struct platform_device *pdev) + { + struct clk *clk; + struct resource *res; ++ unsigned id; + int i; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); +@@ -243,6 +246,12 @@ ltq_dma_init(struct platform_device *pdev) + ltq_dma_w32(DMA_POLL | DMA_CLK_DIV4, LTQ_DMA_CPOLL); + ltq_dma_w32_mask(DMA_CHAN_ON, 0, LTQ_DMA_CCTRL); + } ++ ++ id = ltq_dma_r32(LTQ_DMA_ID); ++ dev_info(&pdev->dev, ++ "Init done - hw rev: %X, ports: %d, channels: %d\n", ++ id & 0x1f, (id >> 16) & 0xf, id >> 20); ++ + dev_info(&pdev->dev, "init done\n"); + return 0; + } +-- +1.7.10.4 + |