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Diffstat (limited to 'target/linux/xburst/patches-3.10/013-MIPS-JZ4740-Acquire-and-enable-DMA-controller-clock.patch')
-rw-r--r--target/linux/xburst/patches-3.10/013-MIPS-JZ4740-Acquire-and-enable-DMA-controller-clock.patch73
1 files changed, 0 insertions, 73 deletions
diff --git a/target/linux/xburst/patches-3.10/013-MIPS-JZ4740-Acquire-and-enable-DMA-controller-clock.patch b/target/linux/xburst/patches-3.10/013-MIPS-JZ4740-Acquire-and-enable-DMA-controller-clock.patch
deleted file mode 100644
index 027e3ad365..0000000000
--- a/target/linux/xburst/patches-3.10/013-MIPS-JZ4740-Acquire-and-enable-DMA-controller-clock.patch
+++ /dev/null
@@ -1,73 +0,0 @@
-From b1ab71156cd49b2389397d3be54b93fe394a1cb2 Mon Sep 17 00:00:00 2001
-From: Maarten ter Huurne <maarten@treewalker.org>
-Date: Tue, 9 Oct 2012 13:09:57 +0200
-Subject: [PATCH 13/16] MIPS: JZ4740: Acquire and enable DMA controller clock
-
-Previously, it was assumed that the DMA controller clock is not gated
-when the kernel starts running. While that is the power-on state, it is
-safer to not rely on that.
-
-Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
----
- arch/mips/jz4740/clock.c | 2 +-
- arch/mips/jz4740/dma.c | 24 ++++++++++++++++++++++--
- 2 files changed, 23 insertions(+), 3 deletions(-)
-
---- a/arch/mips/jz4740/clock.c
-+++ b/arch/mips/jz4740/clock.c
-@@ -921,4 +921,4 @@ static int jz4740_clock_init(void)
-
- return 0;
- }
--arch_initcall(jz4740_clock_init);
-+postcore_initcall(jz4740_clock_init);
---- a/arch/mips/jz4740/dma.c
-+++ b/arch/mips/jz4740/dma.c
-@@ -16,6 +16,7 @@
- #include <linux/kernel.h>
- #include <linux/module.h>
- #include <linux/spinlock.h>
-+#include <linux/clk.h>
- #include <linux/interrupt.h>
-
- #include <linux/dma-mapping.h>
-@@ -268,6 +269,7 @@ static irqreturn_t jz4740_dma_irq(int ir
-
- static int jz4740_dma_init(void)
- {
-+ struct clk *clk;
- unsigned int ret;
-
- jz4740_dma_base = ioremap(JZ4740_DMAC_BASE_ADDR, 0x400);
-@@ -277,11 +279,29 @@ static int jz4740_dma_init(void)
-
- spin_lock_init(&jz4740_dma_lock);
-
-- ret = request_irq(JZ4740_IRQ_DMAC, jz4740_dma_irq, 0, "DMA", NULL);
-+ clk = clk_get(NULL, "dma");
-+ if (IS_ERR(clk)) {
-+ ret = PTR_ERR(clk);
-+ printk(KERN_ERR "JZ4740 DMA: Failed to request clock: %d\n",
-+ ret);
-+ goto err_iounmap;
-+ }
-
-- if (ret)
-+ ret = request_irq(JZ4740_IRQ_DMAC, jz4740_dma_irq, 0, "DMA", NULL);
-+ if (ret) {
- printk(KERN_ERR "JZ4740 DMA: Failed to request irq: %d\n", ret);
-+ goto err_clkput;
-+ }
-+
-+ clk_enable(clk);
-+
-+ return 0;
-+
-+err_clkput:
-+ clk_put(clk);
-
-+err_iounmap:
-+ iounmap(jz4740_dma_base);
- return ret;
- }
- arch_initcall(jz4740_dma_init);