From 7ebc8d56f407184a457dd5fc739cf39e423a25aa Mon Sep 17 00:00:00 2001 From: Eric Miao Date: Fri, 2 Jan 2009 19:38:42 +0800 Subject: [PATCH] [ARM] pxa: move DMA registers definitions into 1. Driver code where pxa_request_dma() is called will most likely reference DMA registers as well, and it is really unnecessary to include pxa-regs.h just for this. Move the definitions into and make relevant drivers include it instead of . 2. Introduce DMAC_REGS_VIRT as the virtual address base for these DMA registers. This allows later processors to re-use the same IP while registers may start at different I/O address. Signed-off-by: Eric Miao --- arch/arm/mach-pxa/dma.c | 2 - arch/arm/mach-pxa/include/mach/dma.h | 56 +++++++++++++++++++++ arch/arm/mach-pxa/include/mach/pxa-regs.h | 59 ----------------------- drivers/media/video/pxa_camera.c | 1 - drivers/mmc/host/pxamci.c | 3 +- drivers/mtd/nand/pxa3xx_nand.c | 1 - drivers/spi/pxa2xx_spi.c | 2 - sound/soc/pxa/pxa-ssp.c | 2 +- sound/soc/pxa/pxa2xx-ac97.c | 2 +- sound/soc/pxa/pxa2xx-i2s.c | 2 +- 10 files changed, 60 insertions(+), 70 deletions(-) diff --git a/arch/arm/mach-pxa/dma.c b/arch/arm/mach-pxa/dma.c index 4613bf1fe43..01217e01f7d 100644 --- a/arch/arm/mach-pxa/dma.c +++ b/arch/arm/mach-pxa/dma.c @@ -23,8 +23,6 @@ #include #include -#include - struct dma_channel { char *name; pxa_dma_prio prio; diff --git a/arch/arm/mach-pxa/include/mach/dma.h b/arch/arm/mach-pxa/include/mach/dma.h index 77607fe4bd6..b0812f59d3f 100644 --- a/arch/arm/mach-pxa/include/mach/dma.h +++ b/arch/arm/mach-pxa/include/mach/dma.h @@ -12,6 +12,62 @@ #ifndef __ASM_ARCH_DMA_H #define __ASM_ARCH_DMA_H +#include + +/* DMA Controller Registers Definitions */ +#define DMAC_REGS_VIRT io_p2v(0x40000000) +#define DMAC_REG(x) (*((volatile u32 *)(DMAC_REGS_VIRT + (x)))) + +#define DCSR(n) DMAC_REG((n) << 2) +#define DALGN DMAC_REG(0x00a0) /* DMA Alignment Register */ +#define DINT DMAC_REG(0x00f0) /* DMA Interrupt Register */ +#define DDADR(n) DMAC_REG(0x0200 + ((n) << 4)) +#define DSADR(n) DMAC_REG(0x0204 + ((n) << 4)) +#define DTADR(n) DMAC_REG(0x0208 + ((n) << 4)) +#define DCMD(n) DMAC_REG(0x020c + ((n) << 4)) +#define DRCMR(n) DMAC_REG((((n) < 64) ? 0x0100 : 0x1100) + \ + (((n) & 0x3f) << 2)) + +#define DCSR_RUN (1 << 31) /* Run Bit (read / write) */ +#define DCSR_NODESC (1 << 30) /* No-Descriptor Fetch (read / write) */ +#define DCSR_STOPIRQEN (1 << 29) /* Stop Interrupt Enable (read / write) */ +#define DCSR_REQPEND (1 << 8) /* Request Pending (read-only) */ +#define DCSR_STOPSTATE (1 << 3) /* Stop State (read-only) */ +#define DCSR_ENDINTR (1 << 2) /* End Interrupt (read / write) */ +#define DCSR_STARTINTR (1 << 1) /* Start Interrupt (read / write) */ +#define DCSR_BUSERR (1 << 0) /* Bus Error Interrupt (read / write) */ + +#if defined(CONFIG_PXA27x) || defined(CONFIG_PXA3xx) +#define DCSR_EORIRQEN (1 << 28) /* End of Receive Interrupt Enable (R/W) */ +#define DCSR_EORJMPEN (1 << 27) /* Jump to next descriptor on EOR */ +#define DCSR_EORSTOPEN (1 << 26) /* STOP on an EOR */ +#define DCSR_SETCMPST (1 << 25) /* Set Descriptor Compare Status */ +#define DCSR_CLRCMPST (1 << 24) /* Clear Descriptor Compare Status */ +#define DCSR_CMPST (1 << 10) /* The Descriptor Compare Status */ +#define DCSR_EORINTR (1 << 9) /* The end of Receive */ +#endif + +#define DRCMR_MAPVLD (1 << 7) /* Map Valid (read / write) */ +#define DRCMR_CHLNUM 0x1f /* mask for Channel Number (read / write) */ + +#define DDADR_DESCADDR 0xfffffff0 /* Address of next descriptor (mask) */ +#define DDADR_STOP (1 << 0) /* Stop (read / write) */ + +#define DCMD_INCSRCADDR (1 << 31) /* Source Address Increment Setting. */ +#define DCMD_INCTRGADDR (1 << 30) /* Target Address Increment Setting. */ +#define DCMD_FLOWSRC (1 << 29) /* Flow Control by the source. */ +#define DCMD_FLOWTRG (1 << 28) /* Flow Control by the target. */ +#define DCMD_STARTIRQEN (1 << 22) /* Start Interrupt Enable */ +#define DCMD_ENDIRQEN (1 << 21) /* End Interrupt Enable */ +#define DCMD_ENDIAN (1 << 18) /* Device Endian-ness. */ +#define DCMD_BURST8 (1 << 16) /* 8 byte burst */ +#define DCMD_BURST16 (2 << 16) /* 16 byte burst */ +#define DCMD_BURST32 (3 << 16) /* 32 byte burst */ +#define DCMD_WIDTH1 (1 << 14) /* 1 byte width */ +#define DCMD_WIDTH2 (2 << 14) /* 2 byte width (HalfWord) */ +#define DCMD_WIDTH4 (3 << 14) /* 4 byte width (Word) */ +#define DCMD_LENGTH 0x01fff /* length mask (max = 8K - 1) */ + /* * Descriptor structure for PXA's DMA engine * Note: this structure must always be aligned to a 16-byte boundary. diff --git a/arch/arm/mach-pxa/include/mach/pxa-regs.h b/arch/arm/mach-pxa/include/mach/pxa-regs.h index 31d615aa772..7d8db197615 100644 --- a/arch/arm/mach-pxa/include/mach/pxa-regs.h +++ b/arch/arm/mach-pxa/include/mach/pxa-regs.h @@ -65,65 +65,6 @@ #define _PCMCIA1Attr _PCMCIAAttr (1) /* PCMCIA 1 Attribute */ #define _PCMCIA1Mem _PCMCIAMem (1) /* PCMCIA 1 Memory */ - - -/* - * DMA Controller - */ -#define DCSR(x) __REG2(0x40000000, (x) << 2) - -#define DCSR_RUN (1 << 31) /* Run Bit (read / write) */ -#define DCSR_NODESC (1 << 30) /* No-Descriptor Fetch (read / write) */ -#define DCSR_STOPIRQEN (1 << 29) /* Stop Interrupt Enable (read / write) */ -#define DCSR_REQPEND (1 << 8) /* Request Pending (read-only) */ -#define DCSR_STOPSTATE (1 << 3) /* Stop State (read-only) */ -#define DCSR_ENDINTR (1 << 2) /* End Interrupt (read / write) */ -#define DCSR_STARTINTR (1 << 1) /* Start Interrupt (read / write) */ -#define DCSR_BUSERR (1 << 0) /* Bus Error Interrupt (read / write) */ - -#if defined(CONFIG_PXA27x) || defined(CONFIG_PXA3xx) -#define DCSR_EORIRQEN (1 << 28) /* End of Receive Interrupt Enable (R/W) */ -#define DCSR_EORJMPEN (1 << 27) /* Jump to next descriptor on EOR */ -#define DCSR_EORSTOPEN (1 << 26) /* STOP on an EOR */ -#define DCSR_SETCMPST (1 << 25) /* Set Descriptor Compare Status */ -#define DCSR_CLRCMPST (1 << 24) /* Clear Descriptor Compare Status */ -#define DCSR_CMPST (1 << 10) /* The Descriptor Compare Status */ -#define DCSR_EORINTR (1 << 9) /* The end of Receive */ -#endif - -#define DALGN __REG(0x400000a0) /* DMA Alignment Register */ -#define DINT __REG(0x400000f0) /* DMA Interrupt Register */ - -#define DRCMR(n) (*(((n) < 64) ? \ - &__REG2(0x40000100, ((n) & 0x3f) << 2) : \ - &__REG2(0x40001100, ((n) & 0x3f) << 2))) - -#define DRCMR_MAPVLD (1 << 7) /* Map Valid (read / write) */ -#define DRCMR_CHLNUM 0x1f /* mask for Channel Number (read / write) */ - -#define DDADR(x) __REG2(0x40000200, (x) << 4) -#define DSADR(x) __REG2(0x40000204, (x) << 4) -#define DTADR(x) __REG2(0x40000208, (x) << 4) -#define DCMD(x) __REG2(0x4000020c, (x) << 4) - -#define DDADR_DESCADDR 0xfffffff0 /* Address of next descriptor (mask) */ -#define DDADR_STOP (1 << 0) /* Stop (read / write) */ - -#define DCMD_INCSRCADDR (1 << 31) /* Source Address Increment Setting. */ -#define DCMD_INCTRGADDR (1 << 30) /* Target Address Increment Setting. */ -#define DCMD_FLOWSRC (1 << 29) /* Flow Control by the source. */ -#define DCMD_FLOWTRG (1 << 28) /* Flow Control by the target. */ -#define DCMD_STARTIRQEN (1 << 22) /* Start Interrupt Enable */ -#define DCMD_ENDIRQEN (1 << 21) /* End Interrupt Enable */ -#define DCMD_ENDIAN (1 << 18) /* Device Endian-ness. */ -#define DCMD_BURST8 (1 << 16) /* 8 byte burst */ -#define DCMD_BURST16 (2 << 16) /* 16 byte burst */ -#define DCMD_BURST32 (3 << 16) /* 32 byte burst */ -#define DCMD_WIDTH1 (1 << 14) /* 1 byte width */ -#define DCMD_WIDTH2 (2 << 14) /* 2 byte width (HalfWord) */ -#define DCMD_WIDTH4 (3 << 14) /* 4 byte width (Word) */ -#define DCMD_LENGTH 0x01fff /* length mask (max = 8K - 1) */ - /* * Real Time Clock */ diff --git a/drivers/media/video/pxa_camera.c b/drivers/media/video/pxa_camera.c index a1d6008efcb..e3e6b29ea6d 100644 --- a/drivers/media/video/pxa_camera.c +++ b/drivers/media/video/pxa_camera.c @@ -35,7 +35,6 @@ #include #include -#include #include #define PXA_CAM_VERSION_CODE KERNEL_VERSION(0, 0, 5) diff --git a/drivers/mmc/host/pxamci.c b/drivers/mmc/host/pxamci.c index 9702ad3774c..430095725f9 100644 --- a/drivers/mmc/host/pxamci.c +++ b/drivers/mmc/host/pxamci.c @@ -30,9 +30,8 @@ #include -#include #include -#include +#include #include #include "pxamci.h" diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c index cc55cbc2b30..61b69cc4000 100644 --- a/drivers/mtd/nand/pxa3xx_nand.c +++ b/drivers/mtd/nand/pxa3xx_nand.c @@ -22,7 +22,6 @@ #include #include -#include #include #define CHIP_DELAY_TIMEOUT (2 * HZ/10) diff --git a/drivers/spi/pxa2xx_spi.c b/drivers/spi/pxa2xx_spi.c index d0fc4ca2f65..d22fac27219 100644 --- a/drivers/spi/pxa2xx_spi.c +++ b/drivers/spi/pxa2xx_spi.c @@ -34,8 +34,6 @@ #include #include -#include -#include #include #include #include diff --git a/sound/soc/pxa/pxa-ssp.c b/sound/soc/pxa/pxa-ssp.c index 73cb6b4c2f2..1dfdf66fb1f 100644 --- a/sound/soc/pxa/pxa-ssp.c +++ b/sound/soc/pxa/pxa-ssp.c @@ -29,7 +29,7 @@ #include #include -#include +#include #include #include #include diff --git a/sound/soc/pxa/pxa2xx-ac97.c b/sound/soc/pxa/pxa2xx-ac97.c index 812c2b4d3e0..a4a655f7e30 100644 --- a/sound/soc/pxa/pxa2xx-ac97.c +++ b/sound/soc/pxa/pxa2xx-ac97.c @@ -20,8 +20,8 @@ #include #include -#include #include +#include #include "pxa2xx-pcm.h" #include "pxa2xx-ac97.h" diff --git a/sound/soc/pxa/pxa2xx-i2s.c b/sound/soc/pxa/pxa2xx-i2s.c index 517991fb109..223de890259 100644 --- a/sound/soc/pxa/pxa2xx-i2s.c +++ b/sound/soc/pxa/pxa2xx-i2s.c @@ -24,7 +24,7 @@ #include #include -#include +#include #include #include -- 2.39.5