[PATCH 03/11] dma: apbh-dma: move header file to common location

Sascha Hauer s.hauer at pengutronix.de
Wed Jul 10 07:59:53 EDT 2013


As the apbh dma engine is also found on i.MX6 move the header file
out of MXS specific directories.

Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
---
 arch/arm/mach-mxs/include/mach/dma.h | 145 -----------------------------------
 drivers/dma/apbh_dma.c               |   2 +-
 drivers/mtd/nand/nand_mxs.c          |   2 +-
 include/dma/apbh-dma.h               | 145 +++++++++++++++++++++++++++++++++++
 4 files changed, 147 insertions(+), 147 deletions(-)
 delete mode 100644 arch/arm/mach-mxs/include/mach/dma.h
 create mode 100644 include/dma/apbh-dma.h

diff --git a/arch/arm/mach-mxs/include/mach/dma.h b/arch/arm/mach-mxs/include/mach/dma.h
deleted file mode 100644
index 52747e2..0000000
--- a/arch/arm/mach-mxs/include/mach/dma.h
+++ /dev/null
@@ -1,145 +0,0 @@
-/*
- * Freescale i.MX28 APBH DMA
- *
- * Copyright (C) 2011 Marek Vasut <marek.vasut at gmail.com>
- * on behalf of DENX Software Engineering GmbH
- *
- * Based on code from LTIB:
- * Copyright 2008-2010 Freescale Semiconductor, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
- *
- */
-
-#ifndef __DMA_H__
-#define __DMA_H__
-
-#include <linux/list.h>
-
-#ifndef	CONFIG_ARCH_DMA_PIO_WORDS
-#define	DMA_PIO_WORDS		15
-#else
-#define	DMA_PIO_WORDS		CONFIG_ARCH_DMA_PIO_WORDS
-#endif
-
-#define MXS_DMA_ALIGNMENT	32
-
-/*
- * MXS DMA channels
- */
-enum {
-	MXS_DMA_CHANNEL_AHB_APBH_SSP0 = 0,
-	MXS_DMA_CHANNEL_AHB_APBH_SSP1,
-	MXS_DMA_CHANNEL_AHB_APBH_SSP2,
-	MXS_DMA_CHANNEL_AHB_APBH_SSP3,
-	MXS_DMA_CHANNEL_AHB_APBH_GPMI0,
-	MXS_DMA_CHANNEL_AHB_APBH_GPMI1,
-	MXS_DMA_CHANNEL_AHB_APBH_GPMI2,
-	MXS_DMA_CHANNEL_AHB_APBH_GPMI3,
-	MXS_DMA_CHANNEL_AHB_APBH_GPMI4,
-	MXS_DMA_CHANNEL_AHB_APBH_GPMI5,
-	MXS_DMA_CHANNEL_AHB_APBH_GPMI6,
-	MXS_DMA_CHANNEL_AHB_APBH_GPMI7,
-	MXS_DMA_CHANNEL_AHB_APBH_SSP,
-	MXS_MAX_DMA_CHANNELS,
-};
-
-/*
- * MXS DMA hardware command.
- *
- * This structure describes the in-memory layout of an entire DMA command,
- * including space for the maximum number of PIO accesses. See the appropriate
- * reference manual for a detailed description of what these fields mean to the
- * DMA hardware.
- */
-#define	MXS_DMA_DESC_COMMAND_MASK	0x3
-#define	MXS_DMA_DESC_COMMAND_OFFSET	0
-#define	MXS_DMA_DESC_COMMAND_NO_DMAXFER	0x0
-#define	MXS_DMA_DESC_COMMAND_DMA_WRITE	0x1
-#define	MXS_DMA_DESC_COMMAND_DMA_READ	0x2
-#define	MXS_DMA_DESC_COMMAND_DMA_SENSE	0x3
-#define	MXS_DMA_DESC_CHAIN		(1 << 2)
-#define	MXS_DMA_DESC_IRQ		(1 << 3)
-#define	MXS_DMA_DESC_NAND_LOCK		(1 << 4)
-#define	MXS_DMA_DESC_NAND_WAIT_4_READY	(1 << 5)
-#define	MXS_DMA_DESC_DEC_SEM		(1 << 6)
-#define	MXS_DMA_DESC_WAIT4END		(1 << 7)
-#define	MXS_DMA_DESC_HALT_ON_TERMINATE	(1 << 8)
-#define	MXS_DMA_DESC_TERMINATE_FLUSH	(1 << 9)
-#define	MXS_DMA_DESC_PIO_WORDS_MASK	(0xf << 12)
-#define	MXS_DMA_DESC_PIO_WORDS_OFFSET	12
-#define	MXS_DMA_DESC_BYTES_MASK		(0xffff << 16)
-#define	MXS_DMA_DESC_BYTES_OFFSET	16
-
-struct mxs_dma_cmd {
-	unsigned long		next;
-	unsigned long		data;
-	union {
-		dma_addr_t	address;
-		unsigned long	alternate;
-	};
-	unsigned long		pio_words[DMA_PIO_WORDS];
-};
-
-/*
- * MXS DMA command descriptor.
- *
- * This structure incorporates an MXS DMA hardware command structure, along
- * with metadata.
- */
-#define	MXS_DMA_DESC_FIRST	(1 << 0)
-#define	MXS_DMA_DESC_LAST	(1 << 1)
-#define	MXS_DMA_DESC_READY	(1 << 31)
-
-struct mxs_dma_desc {
-	struct mxs_dma_cmd	cmd;
-	unsigned int		flags;
-	dma_addr_t		address;
-	void			*buffer;
-	struct list_head	node;
-};
-
-/**
- * MXS DMA channel
- *
- * This structure represents a single DMA channel. The MXS platform code
- * maintains an array of these structures to represent every DMA channel in the
- * system (see mxs_dma_channels).
- */
-#define	MXS_DMA_FLAGS_IDLE	0
-#define	MXS_DMA_FLAGS_BUSY	(1 << 0)
-#define	MXS_DMA_FLAGS_FREE	0
-#define	MXS_DMA_FLAGS_ALLOCATED	(1 << 16)
-#define	MXS_DMA_FLAGS_VALID	(1 << 31)
-
-struct mxs_dma_chan {
-	const char *name;
-	unsigned long dev;
-	struct mxs_dma_device *dma;
-	unsigned int flags;
-	unsigned int active_num;
-	unsigned int pending_num;
-	struct list_head active;
-	struct list_head done;
-};
-
-struct mxs_dma_desc *mxs_dma_desc_alloc(void);
-void mxs_dma_desc_free(struct mxs_dma_desc *);
-int mxs_dma_desc_append(int channel, struct mxs_dma_desc *pdesc);
-
-int mxs_dma_go(int chan);
-int mxs_dma_init(void);
-
-#endif	/* __DMA_H__ */
diff --git a/drivers/dma/apbh_dma.c b/drivers/dma/apbh_dma.c
index 2354364..b0a20b8 100644
--- a/drivers/dma/apbh_dma.c
+++ b/drivers/dma/apbh_dma.c
@@ -20,12 +20,12 @@
 #include <common.h>
 #include <malloc.h>
 #include <errno.h>
+#include <dma/apbh-dma.h>
 #include <stmp-device.h>
 #include <asm/mmu.h>
 #include <asm/io.h>
 #include <mach/clock.h>
 #include <mach/imx-regs.h>
-#include <mach/dma.h>
 
 #define HW_APBHX_CTRL0				0x000
 #define BM_APBH_CTRL0_APB_BURST8_EN		(1 << 29)
diff --git a/drivers/mtd/nand/nand_mxs.c b/drivers/mtd/nand/nand_mxs.c
index 55a0e3e..adb0500 100644
--- a/drivers/mtd/nand/nand_mxs.c
+++ b/drivers/mtd/nand/nand_mxs.c
@@ -28,12 +28,12 @@
 #include <errno.h>
 #include <driver.h>
 #include <init.h>
+#include <dma/apbh-dma.h>
 #include <stmp-device.h>
 #include <asm/mmu.h>
 #include <asm/io.h>
 #include <mach/clock.h>
 #include <mach/imx-regs.h>
-#include <mach/dma.h>
 
 #define	MX28_BLOCK_SFTRST				(1 << 31)
 #define	MX28_BLOCK_CLKGATE				(1 << 30)
diff --git a/include/dma/apbh-dma.h b/include/dma/apbh-dma.h
new file mode 100644
index 0000000..52747e2
--- /dev/null
+++ b/include/dma/apbh-dma.h
@@ -0,0 +1,145 @@
+/*
+ * Freescale i.MX28 APBH DMA
+ *
+ * Copyright (C) 2011 Marek Vasut <marek.vasut at gmail.com>
+ * on behalf of DENX Software Engineering GmbH
+ *
+ * Based on code from LTIB:
+ * Copyright 2008-2010 Freescale Semiconductor, Inc. All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ *
+ */
+
+#ifndef __DMA_H__
+#define __DMA_H__
+
+#include <linux/list.h>
+
+#ifndef	CONFIG_ARCH_DMA_PIO_WORDS
+#define	DMA_PIO_WORDS		15
+#else
+#define	DMA_PIO_WORDS		CONFIG_ARCH_DMA_PIO_WORDS
+#endif
+
+#define MXS_DMA_ALIGNMENT	32
+
+/*
+ * MXS DMA channels
+ */
+enum {
+	MXS_DMA_CHANNEL_AHB_APBH_SSP0 = 0,
+	MXS_DMA_CHANNEL_AHB_APBH_SSP1,
+	MXS_DMA_CHANNEL_AHB_APBH_SSP2,
+	MXS_DMA_CHANNEL_AHB_APBH_SSP3,
+	MXS_DMA_CHANNEL_AHB_APBH_GPMI0,
+	MXS_DMA_CHANNEL_AHB_APBH_GPMI1,
+	MXS_DMA_CHANNEL_AHB_APBH_GPMI2,
+	MXS_DMA_CHANNEL_AHB_APBH_GPMI3,
+	MXS_DMA_CHANNEL_AHB_APBH_GPMI4,
+	MXS_DMA_CHANNEL_AHB_APBH_GPMI5,
+	MXS_DMA_CHANNEL_AHB_APBH_GPMI6,
+	MXS_DMA_CHANNEL_AHB_APBH_GPMI7,
+	MXS_DMA_CHANNEL_AHB_APBH_SSP,
+	MXS_MAX_DMA_CHANNELS,
+};
+
+/*
+ * MXS DMA hardware command.
+ *
+ * This structure describes the in-memory layout of an entire DMA command,
+ * including space for the maximum number of PIO accesses. See the appropriate
+ * reference manual for a detailed description of what these fields mean to the
+ * DMA hardware.
+ */
+#define	MXS_DMA_DESC_COMMAND_MASK	0x3
+#define	MXS_DMA_DESC_COMMAND_OFFSET	0
+#define	MXS_DMA_DESC_COMMAND_NO_DMAXFER	0x0
+#define	MXS_DMA_DESC_COMMAND_DMA_WRITE	0x1
+#define	MXS_DMA_DESC_COMMAND_DMA_READ	0x2
+#define	MXS_DMA_DESC_COMMAND_DMA_SENSE	0x3
+#define	MXS_DMA_DESC_CHAIN		(1 << 2)
+#define	MXS_DMA_DESC_IRQ		(1 << 3)
+#define	MXS_DMA_DESC_NAND_LOCK		(1 << 4)
+#define	MXS_DMA_DESC_NAND_WAIT_4_READY	(1 << 5)
+#define	MXS_DMA_DESC_DEC_SEM		(1 << 6)
+#define	MXS_DMA_DESC_WAIT4END		(1 << 7)
+#define	MXS_DMA_DESC_HALT_ON_TERMINATE	(1 << 8)
+#define	MXS_DMA_DESC_TERMINATE_FLUSH	(1 << 9)
+#define	MXS_DMA_DESC_PIO_WORDS_MASK	(0xf << 12)
+#define	MXS_DMA_DESC_PIO_WORDS_OFFSET	12
+#define	MXS_DMA_DESC_BYTES_MASK		(0xffff << 16)
+#define	MXS_DMA_DESC_BYTES_OFFSET	16
+
+struct mxs_dma_cmd {
+	unsigned long		next;
+	unsigned long		data;
+	union {
+		dma_addr_t	address;
+		unsigned long	alternate;
+	};
+	unsigned long		pio_words[DMA_PIO_WORDS];
+};
+
+/*
+ * MXS DMA command descriptor.
+ *
+ * This structure incorporates an MXS DMA hardware command structure, along
+ * with metadata.
+ */
+#define	MXS_DMA_DESC_FIRST	(1 << 0)
+#define	MXS_DMA_DESC_LAST	(1 << 1)
+#define	MXS_DMA_DESC_READY	(1 << 31)
+
+struct mxs_dma_desc {
+	struct mxs_dma_cmd	cmd;
+	unsigned int		flags;
+	dma_addr_t		address;
+	void			*buffer;
+	struct list_head	node;
+};
+
+/**
+ * MXS DMA channel
+ *
+ * This structure represents a single DMA channel. The MXS platform code
+ * maintains an array of these structures to represent every DMA channel in the
+ * system (see mxs_dma_channels).
+ */
+#define	MXS_DMA_FLAGS_IDLE	0
+#define	MXS_DMA_FLAGS_BUSY	(1 << 0)
+#define	MXS_DMA_FLAGS_FREE	0
+#define	MXS_DMA_FLAGS_ALLOCATED	(1 << 16)
+#define	MXS_DMA_FLAGS_VALID	(1 << 31)
+
+struct mxs_dma_chan {
+	const char *name;
+	unsigned long dev;
+	struct mxs_dma_device *dma;
+	unsigned int flags;
+	unsigned int active_num;
+	unsigned int pending_num;
+	struct list_head active;
+	struct list_head done;
+};
+
+struct mxs_dma_desc *mxs_dma_desc_alloc(void);
+void mxs_dma_desc_free(struct mxs_dma_desc *);
+int mxs_dma_desc_append(int channel, struct mxs_dma_desc *pdesc);
+
+int mxs_dma_go(int chan);
+int mxs_dma_init(void);
+
+#endif	/* __DMA_H__ */
-- 
1.8.3.2




More information about the barebox mailing list