diff options
Diffstat (limited to 'target/linux/lantiq/patches-5.4/0112-MIPS-lantiq-dma-fix-burst-length-for-DEU.patch')
| -rw-r--r-- | target/linux/lantiq/patches-5.4/0112-MIPS-lantiq-dma-fix-burst-length-for-DEU.patch | 41 |
1 files changed, 0 insertions, 41 deletions
diff --git a/target/linux/lantiq/patches-5.4/0112-MIPS-lantiq-dma-fix-burst-length-for-DEU.patch b/target/linux/lantiq/patches-5.4/0112-MIPS-lantiq-dma-fix-burst-length-for-DEU.patch deleted file mode 100644 index 67423d2e97..0000000000 --- a/target/linux/lantiq/patches-5.4/0112-MIPS-lantiq-dma-fix-burst-length-for-DEU.patch +++ /dev/null @@ -1,41 +0,0 @@ -From 7d9ea9052d6680d2910b8b005c397d95b3a8b012 Mon Sep 17 00:00:00 2001 -From: Aleksander Jan Bajkowski <olek2@wp.pl> -Date: Wed, 7 Apr 2021 21:04:39 +0200 -Subject: [PATCH 3/5] MIPS: lantiq: dma: fix burst length for DEU - -The current definition of 2W burst length is invalid. -This patch fixes it. Current downstream DEU driver doesn't -use DMA. An incorrect burst length value doesn't cause any -errors. This patch also adds other burst length values. - -Fixes: dfec1a827d2b ("MIPS: Lantiq: Add DMA support") -Signed-off-by: Aleksander Jan Bajkowski <olek2@wp.pl> ---- - arch/mips/lantiq/xway/dma.c | 9 +++++++-- - 1 file changed, 7 insertions(+), 2 deletions(-) - ---- a/arch/mips/lantiq/xway/dma.c -+++ b/arch/mips/lantiq/xway/dma.c -@@ -40,7 +40,11 @@ - #define DMA_IRQ_ACK 0x7e /* IRQ status register */ - #define DMA_POLL BIT(31) /* turn on channel polling */ - #define DMA_CLK_DIV4 BIT(6) /* polling clock divider */ --#define DMA_2W_BURST BIT(1) /* 2 word burst length */ -+#define DMA_PCTRL_2W_BURST 0x1 /* 2 word burst length */ -+#define DMA_PCTRL_4W_BURST 0x2 /* 4 word burst length */ -+#define DMA_PCTRL_8W_BURST 0x3 /* 8 word burst length */ -+#define DMA_TX_BURST_SHIFT 4 /* tx burst shift */ -+#define DMA_RX_BURST_SHIFT 2 /* rx burst shift */ - #define DMA_ETOP_ENDIANNESS (0xf << 8) /* endianness swap etop channels */ - #define DMA_WEIGHT (BIT(17) | BIT(16)) /* default channel wheight */ - -@@ -191,7 +195,8 @@ ltq_dma_init_port(int p) - break; - - case DMA_PORT_DEU: -- ltq_dma_w32((DMA_2W_BURST << 4) | (DMA_2W_BURST << 2), -+ ltq_dma_w32((DMA_PCTRL_2W_BURST << DMA_TX_BURST_SHIFT) | -+ (DMA_PCTRL_2W_BURST << DMA_RX_BURST_SHIFT), - LTQ_DMA_PCTRL); - break; - |