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Diffstat (limited to 'target/linux/sunxi/patches-3.12/190-ahci-missing-dma-for-sunxi.patch')
-rw-r--r--target/linux/sunxi/patches-3.12/190-ahci-missing-dma-for-sunxi.patch60
1 files changed, 0 insertions, 60 deletions
diff --git a/target/linux/sunxi/patches-3.12/190-ahci-missing-dma-for-sunxi.patch b/target/linux/sunxi/patches-3.12/190-ahci-missing-dma-for-sunxi.patch
deleted file mode 100644
index c7a529967b..0000000000
--- a/target/linux/sunxi/patches-3.12/190-ahci-missing-dma-for-sunxi.patch
+++ /dev/null
@@ -1,60 +0,0 @@
-From a4c21089299ba411d998b16423a76cbae111194e Mon Sep 17 00:00:00 2001
-From: Oliver Schinagl <oliver@schinagl.nl>
-Date: Mon, 2 Dec 2013 16:13:32 +0100
-Subject: [PATCH] RFC: AHCI: libahci is missing DMA
-
-The Allwinner sunxi platforms have patched in the following to enable
-DMA. This patch enables DMA controllers for the SUNXI Architecture.
-
-Signed-off-by: Olliver Schinagl <oliver@schinagl.nl>
----
- drivers/ata/ahci.h | 6 ++++++
- drivers/ata/libahci.c | 8 ++++++++
- 2 files changed, 14 insertions(+)
-
-diff --git a/drivers/ata/ahci.h b/drivers/ata/ahci.h
-index 2289efd..2bf2423 100644
---- a/drivers/ata/ahci.h
-+++ b/drivers/ata/ahci.h
-@@ -138,6 +138,7 @@ enum {
- PORT_SCR_NTF = 0x3c, /* SATA phy register: SNotification */
- PORT_FBS = 0x40, /* FIS-based Switching */
- PORT_DEVSLP = 0x44, /* device sleep */
-+ PORT_DMA = 0x70, /* direct memory access */
-
- /* PORT_IRQ_{STAT,MASK} bits */
- PORT_IRQ_COLD_PRES = (1 << 31), /* cold presence detect */
-@@ -209,6 +210,11 @@ enum {
- PORT_DEVSLP_DSP = (1 << 1), /* DevSlp present */
- PORT_DEVSLP_ADSE = (1 << 0), /* Aggressive DevSlp enable */
-
-+ /* PORT_DMA bits */
-+ PORT_DMA_SETUP_OFFSET = 8, /* dma setup offset */
-+ PORT_DMA_SETUP_MASK = (0xff << PORT_DMA_SETUP_OFFSET),/* dma mask */
-+ PORT_DMA_SETUP_INIT = (0x44 << 0),
-+
- /* hpriv->flags bits */
-
- #define AHCI_HFLAGS(flags) .private_data = (void *)(flags)
-diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c
-index c482f8c..d697a74 100644
---- a/drivers/ata/libahci.c
-+++ b/drivers/ata/libahci.c
-@@ -570,6 +570,14 @@ void ahci_start_engine(struct ata_port *ap)
- void __iomem *port_mmio = ahci_port_base(ap);
- u32 tmp;
-
-+#ifdef CONFIG_ARCH_SUNXI
-+ /* Setup DMA before DMA start */
-+ tmp = readl(port_mmio + PORT_DMA);
-+ tmp &= ~PORT_DMA_SETUP_MASK;
-+ tmp |= PORT_DMA_SETUP_INIT << PORT_DMA_SETUP_OFFSET;
-+ writel(tmp, port_mmio + PORT_DMA);
-+#endif
-+
- /* start DMA */
- tmp = readl(port_mmio + PORT_CMD);
- tmp |= PORT_CMD_START;
---
-1.8.5.1
-