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authorIngo Molnar <mingo@elte.hu>2009-09-07 08:19:51 +0200
committerIngo Molnar <mingo@elte.hu>2009-09-07 08:19:51 +0200
commita1922ed661ab2c1637d0b10cde933bd9cd33d965 (patch)
tree0f1777542b385ebefd30b3586d830fd8ed6fda5b /arch/mips/include/asm/txx9/dmac.h
parent75e33751ca8bbb72dd6f1a74d2810ddc8cbe4bdf (diff)
parentd28daf923ac5e4a0d7cecebae56f3e339189366b (diff)
Merge branch 'tracing/core' into tracing/hw-breakpoints
Conflicts: arch/Kconfig kernel/trace/trace.h Merge reason: resolve the conflicts, plus adopt to the new ring-buffer APIs. Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/mips/include/asm/txx9/dmac.h')
-rw-r--r--arch/mips/include/asm/txx9/dmac.h51
1 files changed, 51 insertions, 0 deletions
diff --git a/arch/mips/include/asm/txx9/dmac.h b/arch/mips/include/asm/txx9/dmac.h
new file mode 100644
index 00000000000..5e9151fccbb
--- /dev/null
+++ b/arch/mips/include/asm/txx9/dmac.h
@@ -0,0 +1,51 @@
+/*
+ * TXx9 SoC DMA Controller
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __ASM_TXX9_DMAC_H
+#define __ASM_TXX9_DMAC_H
+
+#include <linux/dmaengine.h>
+
+#define TXX9_DMA_MAX_NR_CHANNELS 4
+
+/**
+ * struct txx9dmac_platform_data - Controller configuration parameters
+ * @memcpy_chan: Channel used for DMA_MEMCPY
+ * @have_64bit_regs: DMAC have 64 bit registers
+ */
+struct txx9dmac_platform_data {
+ int memcpy_chan;
+ bool have_64bit_regs;
+};
+
+/**
+ * struct txx9dmac_chan_platform_data - Channel configuration parameters
+ * @dmac_dev: A platform device for DMAC
+ */
+struct txx9dmac_chan_platform_data {
+ struct platform_device *dmac_dev;
+};
+
+/**
+ * struct txx9dmac_slave - Controller-specific information about a slave
+ * @tx_reg: physical address of data register used for
+ * memory-to-peripheral transfers
+ * @rx_reg: physical address of data register used for
+ * peripheral-to-memory transfers
+ * @reg_width: peripheral register width
+ */
+struct txx9dmac_slave {
+ u64 tx_reg;
+ u64 rx_reg;
+ unsigned int reg_width;
+};
+
+void txx9_dmac_init(int id, unsigned long baseaddr, int irq,
+ const struct txx9dmac_platform_data *pdata);
+
+#endif /* __ASM_TXX9_DMAC_H */