lantiq: drop kernel 5.4 support

[openwrt/openwrt.git] / target / linux / lantiq / patches-5.4 / 0112-MIPS-lantiq-dma-fix-burst-length-for-DEU.patch

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 (file)
index 67423d2..0000000
--- 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;
-