summaryrefslogtreecommitdiff
path: root/target/linux/sunxi/patches-3.13/160-ahci-add-pre-start-hook.patch
diff options
context:
space:
mode:
Diffstat (limited to 'target/linux/sunxi/patches-3.13/160-ahci-add-pre-start-hook.patch')
-rw-r--r--target/linux/sunxi/patches-3.13/160-ahci-add-pre-start-hook.patch46
1 files changed, 0 insertions, 46 deletions
diff --git a/target/linux/sunxi/patches-3.13/160-ahci-add-pre-start-hook.patch b/target/linux/sunxi/patches-3.13/160-ahci-add-pre-start-hook.patch
deleted file mode 100644
index b832dc4..0000000
--- a/target/linux/sunxi/patches-3.13/160-ahci-add-pre-start-hook.patch
+++ /dev/null
@@ -1,46 +0,0 @@
-From 3eec76bc21d78e56ac8404b59f29dd9dbbd1528a Mon Sep 17 00:00:00 2001
-From: Oliver Schinagl <oliver@schinagl.nl>
-Date: Mon, 2 Dec 2013 16:13:32 +0100
-Subject: [PATCH] libahci: Add a pre ahci_start_engine hook
-
-Allwinner A10 and A20 ARM SoCs have an AHCI sata controller which need a
-special register to be poked before starting the DMA engine.
-
-This register gets reset on an ahci_stop_engine call, so there is no other
-place then ahci_start_engine where this poking can be done.
-
-This commit adds a pre ahci_start_engine hook for use by the Allwinner AHCI
-driver (and potentially other drivers in the future).
-
-Signed-off-by: Hans de Goede <hdegoede@redhat.com>
----
- drivers/ata/ahci.h | 2 ++
- drivers/ata/libahci.c | 4 ++++
- 2 files changed, 6 insertions(+)
-
---- a/drivers/ata/ahci.h
-+++ b/drivers/ata/ahci.h
-@@ -323,6 +323,8 @@ struct ahci_host_priv {
- u32 em_msg_type; /* EM message type */
- struct clk *clk; /* Only for platforms supporting clk */
- void *plat_data; /* Other platform data */
-+ /* Optional pre ahci_start_engine hook */
-+ void (*pre_start_engine)(struct ata_port *ap);
- };
-
- extern int ahci_ignore_sss;
---- a/drivers/ata/libahci.c
-+++ b/drivers/ata/libahci.c
-@@ -568,8 +568,12 @@ static int ahci_scr_write(struct ata_lin
- void ahci_start_engine(struct ata_port *ap)
- {
- void __iomem *port_mmio = ahci_port_base(ap);
-+ struct ahci_host_priv *hpriv = ap->host->private_data;
- u32 tmp;
-
-+ if (hpriv->pre_start_engine)
-+ hpriv->pre_start_engine(ap);
-+
- /* start DMA */
- tmp = readl(port_mmio + PORT_CMD);
- tmp |= PORT_CMD_START;