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-rw-r--r--arch/arm/mach-pnx4008/include/mach/dma.h162
1 files changed, 162 insertions, 0 deletions
diff --git a/arch/arm/mach-pnx4008/include/mach/dma.h b/arch/arm/mach-pnx4008/include/mach/dma.h
new file mode 100644
index 00000000000..5442d04fc57
--- /dev/null
+++ b/arch/arm/mach-pnx4008/include/mach/dma.h
@@ -0,0 +1,162 @@
+/*
+ * arch/arm/mach-pnx4008/include/mach/dma.h
+ *
+ * PNX4008 DMA header file
+ *
+ * Author: Vitaly Wool
+ * Copyright: MontaVista Software Inc. (c) 2005
+ *
+ * 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_ARCH_DMA_H
+#define __ASM_ARCH_DMA_H
+
+#include "platform.h"
+
+#define MAX_DMA_ADDRESS 0xffffffff
+
+#define MAX_DMA_CHANNELS 8
+
+#define DMAC_BASE IO_ADDRESS(PNX4008_DMA_CONFIG_BASE)
+#define DMAC_INT_STAT (DMAC_BASE + 0x0000)
+#define DMAC_INT_TC_STAT (DMAC_BASE + 0x0004)
+#define DMAC_INT_TC_CLEAR (DMAC_BASE + 0x0008)
+#define DMAC_INT_ERR_STAT (DMAC_BASE + 0x000c)
+#define DMAC_INT_ERR_CLEAR (DMAC_BASE + 0x0010)
+#define DMAC_SOFT_SREQ (DMAC_BASE + 0x0024)
+#define DMAC_CONFIG (DMAC_BASE + 0x0030)
+#define DMAC_Cx_SRC_ADDR(c) (DMAC_BASE + 0x0100 + (c) * 0x20)
+#define DMAC_Cx_DEST_ADDR(c) (DMAC_BASE + 0x0104 + (c) * 0x20)
+#define DMAC_Cx_LLI(c) (DMAC_BASE + 0x0108 + (c) * 0x20)
+#define DMAC_Cx_CONTROL(c) (DMAC_BASE + 0x010c + (c) * 0x20)
+#define DMAC_Cx_CONFIG(c) (DMAC_BASE + 0x0110 + (c) * 0x20)
+
+enum {
+ WIDTH_BYTE = 0,
+ WIDTH_HWORD,
+ WIDTH_WORD
+};
+
+enum {
+ FC_MEM2MEM_DMA,
+ FC_MEM2PER_DMA,
+ FC_PER2MEM_DMA,
+ FC_PER2PER_DMA,
+ FC_PER2PER_DPER,
+ FC_MEM2PER_PER,
+ FC_PER2MEM_PER,
+ FC_PER2PER_SPER
+};
+
+enum {
+ DMA_INT_UNKNOWN = 0,
+ DMA_ERR_INT = 1,
+ DMA_TC_INT = 2,
+};
+
+enum {
+ DMA_BUFFER_ALLOCATED = 1,
+ DMA_HAS_LL = 2,
+};
+
+enum {
+ PER_CAM_DMA_1 = 0,
+ PER_NDF_FLASH = 1,
+ PER_MBX_SLAVE_FIFO = 2,
+ PER_SPI2_REC_XMIT = 3,
+ PER_MS_SD_RX_XMIT = 4,
+ PER_HS_UART_1_XMIT = 5,
+ PER_HS_UART_1_RX = 6,
+ PER_HS_UART_2_XMIT = 7,
+ PER_HS_UART_2_RX = 8,
+ PER_HS_UART_7_XMIT = 9,
+ PER_HS_UART_7_RX = 10,
+ PER_SPI1_REC_XMIT = 11,
+ PER_MLC_NDF_SREC = 12,
+ PER_CAM_DMA_2 = 13,
+ PER_PRNG_INFIFO = 14,
+ PER_PRNG_OUTFIFO = 15,
+};
+
+struct pnx4008_dma_ch_ctrl {
+ int tc_mask;
+ int cacheable;
+ int bufferable;
+ int priv_mode;
+ int di;
+ int si;
+ int dest_ahb1;
+ int src_ahb1;
+ int dwidth;
+ int swidth;
+ int dbsize;
+ int sbsize;
+ int tr_size;
+};
+
+struct pnx4008_dma_ch_config {
+ int halt;
+ int active;
+ int lock;
+ int itc;
+ int ie;
+ int flow_cntrl;
+ int dest_per;
+ int src_per;
+};
+
+struct pnx4008_dma_ll {
+ unsigned long src_addr;
+ unsigned long dest_addr;
+ u32 next_dma;
+ unsigned long ch_ctrl;
+ struct pnx4008_dma_ll *next;
+ int flags;
+ void *alloc_data;
+ int (*free) (void *);
+};
+
+struct pnx4008_dma_config {
+ int is_ll;
+ unsigned long src_addr;
+ unsigned long dest_addr;
+ unsigned long ch_ctrl;
+ unsigned long ch_cfg;
+ struct pnx4008_dma_ll *ll;
+ u32 ll_dma;
+ int flags;
+ void *alloc_data;
+ int (*free) (void *);
+};
+
+extern struct pnx4008_dma_ll *pnx4008_alloc_ll_entry(dma_addr_t *);
+extern void pnx4008_free_ll_entry(struct pnx4008_dma_ll *, dma_addr_t);
+extern void pnx4008_free_ll(u32 ll_dma, struct pnx4008_dma_ll *);
+
+extern int pnx4008_request_channel(char *, int,
+ void (*)(int, int, void *),
+ void *);
+extern void pnx4008_free_channel(int);
+extern int pnx4008_config_dma(int, int, int);
+extern int pnx4008_dma_pack_control(const struct pnx4008_dma_ch_ctrl *,
+ unsigned long *);
+extern int pnx4008_dma_parse_control(unsigned long,
+ struct pnx4008_dma_ch_ctrl *);
+extern int pnx4008_dma_pack_config(const struct pnx4008_dma_ch_config *,
+ unsigned long *);
+extern int pnx4008_dma_parse_config(unsigned long,
+ struct pnx4008_dma_ch_config *);
+extern int pnx4008_config_channel(int, struct pnx4008_dma_config *);
+extern int pnx4008_channel_get_config(int, struct pnx4008_dma_config *);
+extern int pnx4008_dma_ch_enable(int);
+extern int pnx4008_dma_ch_disable(int);
+extern int pnx4008_dma_ch_enabled(int);
+extern void pnx4008_dma_split_head_entry(struct pnx4008_dma_config *,
+ struct pnx4008_dma_ch_ctrl *);
+extern void pnx4008_dma_split_ll_entry(struct pnx4008_dma_ll *,
+ struct pnx4008_dma_ch_ctrl *);
+
+#endif /* _ASM_ARCH_DMA_H */