From 85a1c30e24fdaab35282cbd992aa4cc9cc20ad60 Mon Sep 17 00:00:00 2001 From: Ben Dooks Date: Wed, 13 May 2009 22:20:35 +0100 Subject: [PATCH] --- yaml --- r: 149273 b: refs/heads/master c: ec7f4d5d67ef63c724ab6d4bdc7d2ffa8861071a h: refs/heads/master i: 149271: 11098d6d36e6f49f5f39e709aef44151aebe76aa v: v3 --- [refs] | 2 +- trunk/arch/arm/include/asm/hardware/pl080.h | 138 ---- trunk/arch/arm/mach-s3c2410/dma.c | 4 +- .../arch/arm/mach-s3c2410/include/mach/dma.h | 265 ++++++- .../arm/mach-s3c2410/include/mach/hardware.h | 11 - .../mach-s3c2410/include/mach/system-reset.h | 36 +- trunk/arch/arm/mach-s3c2412/dma.c | 3 +- trunk/arch/arm/mach-s3c2440/dma.c | 4 +- trunk/arch/arm/mach-s3c2443/dma.c | 3 +- .../arch/arm/mach-s3c6400/include/mach/dma.h | 59 +- .../arch/arm/mach-s3c6400/include/mach/map.h | 3 - .../arm/mach-s3c6400/include/mach/system.h | 8 +- trunk/arch/arm/mach-s3c6410/Kconfig | 1 - trunk/arch/arm/mach-s3c6410/mach-smdk6410.c | 1 - trunk/arch/arm/plat-s3c/Kconfig | 12 - trunk/arch/arm/plat-s3c/Makefile | 5 - trunk/arch/arm/plat-s3c/dev-usb-hsotg.c | 41 - trunk/arch/arm/plat-s3c/dma.c | 86 --- trunk/arch/arm/plat-s3c/include/plat/adc.h | 10 +- trunk/arch/arm/plat-s3c/include/plat/devs.h | 1 - .../arch/arm/plat-s3c/include/plat/dma-core.h | 22 - trunk/arch/arm/plat-s3c/include/plat/dma.h | 127 --- trunk/arch/arm/plat-s3c/include/plat/udc-hs.h | 29 - .../plat-s3c/include/plat/watchdog-reset.h | 49 -- trunk/arch/arm/plat-s3c24xx/Kconfig | 1 - trunk/arch/arm/plat-s3c24xx/adc.c | 11 +- trunk/arch/arm/plat-s3c24xx/dma.c | 151 ++-- trunk/arch/arm/plat-s3c24xx/gpio.c | 16 - .../include/plat/{dma-plat.h => dma.h} | 12 +- .../arm/plat-s3c24xx/include/plat/regs-dma.h | 145 ---- trunk/arch/arm/plat-s3c64xx/Kconfig | 4 - trunk/arch/arm/plat-s3c64xx/Makefile | 4 - trunk/arch/arm/plat-s3c64xx/cpu.c | 5 - trunk/arch/arm/plat-s3c64xx/dma.c | 722 ------------------ .../arm/plat-s3c64xx/include/plat/dma-plat.h | 70 -- trunk/drivers/mmc/host/s3cmci.c | 2 +- trunk/sound/soc/s3c24xx/s3c24xx-pcm.c | 21 +- 37 files changed, 422 insertions(+), 1662 deletions(-) delete mode 100644 trunk/arch/arm/include/asm/hardware/pl080.h delete mode 100644 trunk/arch/arm/plat-s3c/dev-usb-hsotg.c delete mode 100644 trunk/arch/arm/plat-s3c/dma.c delete mode 100644 trunk/arch/arm/plat-s3c/include/plat/dma-core.h delete mode 100644 trunk/arch/arm/plat-s3c/include/plat/dma.h delete mode 100644 trunk/arch/arm/plat-s3c/include/plat/udc-hs.h delete mode 100644 trunk/arch/arm/plat-s3c/include/plat/watchdog-reset.h rename trunk/arch/arm/plat-s3c24xx/include/plat/{dma-plat.h => dma.h} (86%) delete mode 100644 trunk/arch/arm/plat-s3c24xx/include/plat/regs-dma.h delete mode 100644 trunk/arch/arm/plat-s3c64xx/dma.c delete mode 100644 trunk/arch/arm/plat-s3c64xx/include/plat/dma-plat.h diff --git a/[refs] b/[refs] index 2b2e283ad111..dd236680eb5e 100644 --- a/[refs] +++ b/[refs] @@ -1,2 +1,2 @@ --- -refs/heads/master: bcb8a0d6f5e73c61a5290b4faaaa48dfa629e6b0 +refs/heads/master: ec7f4d5d67ef63c724ab6d4bdc7d2ffa8861071a diff --git a/trunk/arch/arm/include/asm/hardware/pl080.h b/trunk/arch/arm/include/asm/hardware/pl080.h deleted file mode 100644 index 6a6c66be7f65..000000000000 --- a/trunk/arch/arm/include/asm/hardware/pl080.h +++ /dev/null @@ -1,138 +0,0 @@ -/* arch/arm/include/asm/hardware/pl080.h - * - * Copyright 2008 Openmoko, Inc. - * Copyright 2008 Simtec Electronics - * http://armlinux.simtec.co.uk/ - * Ben Dooks - * - * ARM PrimeCell PL080 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. -*/ - -/* Note, there are some Samsung updates to this controller block which - * make it not entierly compatible with the PL080 specification from - * ARM. When in doubt, check the Samsung documentation first. - * - * The Samsung defines are PL080S, and add an extra controll register, - * the ability to move more than 2^11 counts of data and some extra - * OneNAND features. -*/ - -#define PL080_INT_STATUS (0x00) -#define PL080_TC_STATUS (0x04) -#define PL080_TC_CLEAR (0x08) -#define PL080_ERR_STATUS (0x0C) -#define PL080_ERR_CLEAR (0x10) -#define PL080_RAW_TC_STATUS (0x14) -#define PL080_RAW_ERR_STATUS (0x18) -#define PL080_EN_CHAN (0x1c) -#define PL080_SOFT_BREQ (0x20) -#define PL080_SOFT_SREQ (0x24) -#define PL080_SOFT_LBREQ (0x28) -#define PL080_SOFT_LSREQ (0x2C) - -#define PL080_CONFIG (0x30) -#define PL080_CONFIG_M2_BE (1 << 2) -#define PL080_CONFIG_M1_BE (1 << 1) -#define PL080_CONFIG_ENABLE (1 << 0) - -#define PL080_SYNC (0x34) - -/* Per channel configuration registers */ - -#define PL008_Cx_STRIDE (0x20) -#define PL080_Cx_BASE(x) ((0x100 + (x * 0x20))) -#define PL080_Cx_SRC_ADDR(x) ((0x100 + (x * 0x20))) -#define PL080_Cx_DST_ADDR(x) ((0x104 + (x * 0x20))) -#define PL080_Cx_LLI(x) ((0x108 + (x * 0x20))) -#define PL080_Cx_CONTROL(x) ((0x10C + (x * 0x20))) -#define PL080_Cx_CONFIG(x) ((0x110 + (x * 0x20))) -#define PL080S_Cx_CONTROL2(x) ((0x110 + (x * 0x20))) -#define PL080S_Cx_CONFIG(x) ((0x114 + (x * 0x20))) - -#define PL080_CH_SRC_ADDR (0x00) -#define PL080_CH_DST_ADDR (0x04) -#define PL080_CH_LLI (0x08) -#define PL080_CH_CONTROL (0x0C) -#define PL080_CH_CONFIG (0x10) -#define PL080S_CH_CONTROL2 (0x10) -#define PL080S_CH_CONFIG (0x14) - -#define PL080_LLI_ADDR_MASK (0x3fffffff << 2) -#define PL080_LLI_ADDR_SHIFT (2) -#define PL080_LLI_LM_AHB2 (1 << 0) - -#define PL080_CONTROL_TC_IRQ_EN (1 << 31) -#define PL080_CONTROL_PROT_MASK (0x7 << 28) -#define PL080_CONTROL_PROT_SHIFT (28) -#define PL080_CONTROL_PROT_SYS (1 << 28) -#define PL080_CONTROL_DST_INCR (1 << 27) -#define PL080_CONTROL_SRC_INCR (1 << 26) -#define PL080_CONTROL_DST_AHB2 (1 << 25) -#define PL080_CONTROL_SRC_AHB2 (1 << 24) -#define PL080_CONTROL_DWIDTH_MASK (0x7 << 21) -#define PL080_CONTROL_DWIDTH_SHIFT (21) -#define PL080_CONTROL_SWIDTH_MASK (0x7 << 18) -#define PL080_CONTROL_SWIDTH_SHIFT (18) -#define PL080_CONTROL_DB_SIZE_MASK (0x7 << 15) -#define PL080_CONTROL_DB_SIZE_SHIFT (15) -#define PL080_CONTROL_SB_SIZE_MASK (0x7 << 12) -#define PL080_CONTROL_SB_SIZE_SHIFT (12) -#define PL080_CONTROL_TRANSFER_SIZE_MASK (0xfff << 0) -#define PL080_CONTROL_TRANSFER_SIZE_SHIFT (0) - -#define PL080_BSIZE_1 (0x0) -#define PL080_BSIZE_4 (0x1) -#define PL080_BSIZE_8 (0x2) -#define PL080_BSIZE_16 (0x3) -#define PL080_BSIZE_32 (0x4) -#define PL080_BSIZE_64 (0x5) -#define PL080_BSIZE_128 (0x6) -#define PL080_BSIZE_256 (0x7) - -#define PL080_WIDTH_8BIT (0x0) -#define PL080_WIDTH_16BIT (0x1) -#define PL080_WIDTH_32BIT (0x2) - -#define PL080_CONFIG_HALT (1 << 18) -#define PL080_CONFIG_ACTIVE (1 << 17) /* RO */ -#define PL080_CONFIG_LOCK (1 << 16) -#define PL080_CONFIG_TC_IRQ_MASK (1 << 15) -#define PL080_CONFIG_ERR_IRQ_MASK (1 << 14) -#define PL080_CONFIG_FLOW_CONTROL_MASK (0x7 << 11) -#define PL080_CONFIG_FLOW_CONTROL_SHIFT (11) -#define PL080_CONFIG_DST_SEL_MASK (0xf << 6) -#define PL080_CONFIG_DST_SEL_SHIFT (6) -#define PL080_CONFIG_SRC_SEL_MASK (0xf << 1) -#define PL080_CONFIG_SRC_SEL_SHIFT (1) -#define PL080_CONFIG_ENABLE (1 << 0) - -#define PL080_FLOW_MEM2MEM (0x0) -#define PL080_FLOW_MEM2PER (0x1) -#define PL080_FLOW_PER2MEM (0x2) -#define PL080_FLOW_SRC2DST (0x3) -#define PL080_FLOW_SRC2DST_DST (0x4) -#define PL080_FLOW_MEM2PER_PER (0x5) -#define PL080_FLOW_PER2MEM_PER (0x6) -#define PL080_FLOW_SRC2DST_SRC (0x7) - -/* DMA linked list chain structure */ - -struct pl080_lli { - u32 src_addr; - u32 dst_addr; - u32 next_lli; - u32 control0; -}; - -struct pl080s_lli { - u32 src_addr; - u32 dst_addr; - u32 next_lli; - u32 control0; - u32 control1; -}; - diff --git a/trunk/arch/arm/mach-s3c2410/dma.c b/trunk/arch/arm/mach-s3c2410/dma.c index dbf96e60d992..440c014e24b3 100644 --- a/trunk/arch/arm/mach-s3c2410/dma.c +++ b/trunk/arch/arm/mach-s3c2410/dma.c @@ -17,16 +17,14 @@ #include #include -#include #include #include -#include +#include #include #include #include -#include #include #include #include diff --git a/trunk/arch/arm/mach-s3c2410/include/mach/dma.h b/trunk/arch/arm/mach-s3c2410/include/mach/dma.h index c3a2629e0ded..13358ce2128c 100644 --- a/trunk/arch/arm/mach-s3c2410/include/mach/dma.h +++ b/trunk/arch/arm/mach-s3c2410/include/mach/dma.h @@ -3,7 +3,7 @@ * Copyright (C) 2003,2004,2006 Simtec Electronics * Ben Dooks * - * Samsung S3C24XX DMA support + * Samsung S3C241XX DMA support * * 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 @@ -13,8 +13,8 @@ #ifndef __ASM_ARCH_DMA_H #define __ASM_ARCH_DMA_H __FILE__ -#include #include +#include #define MAX_DMA_TRANSFER_SIZE 0x100000 /* Data Unit is half word */ @@ -55,9 +55,9 @@ enum dma_ch { /* we have 4 dma channels */ #ifndef CONFIG_CPU_S3C2443 -#define S3C_DMA_CHANNELS (4) +#define S3C2410_DMA_CHANNELS (4) #else -#define S3C_DMA_CHANNELS (6) +#define S3C2410_DMA_CHANNELS (6) #endif /* types */ @@ -68,6 +68,7 @@ enum s3c2410_dma_state { S3C2410_DMA_PAUSED }; + /* enum s3c2410_dma_loadst * * This represents the state of the DMA engine, wrt to the loaded / running @@ -103,6 +104,32 @@ enum s3c2410_dma_loadst { S3C2410_DMALOAD_1LOADED_1RUNNING, }; +enum s3c2410_dma_buffresult { + S3C2410_RES_OK, + S3C2410_RES_ERR, + S3C2410_RES_ABORT +}; + +enum s3c2410_dmasrc { + S3C2410_DMASRC_HW, /* source is memory */ + S3C2410_DMASRC_MEM /* source is hardware */ +}; + +/* enum s3c2410_chan_op + * + * operation codes passed to the DMA code by the user, and also used + * to inform the current channel owner of any changes to the system state +*/ + +enum s3c2410_chan_op { + S3C2410_DMAOP_START, + S3C2410_DMAOP_STOP, + S3C2410_DMAOP_PAUSE, + S3C2410_DMAOP_RESUME, + S3C2410_DMAOP_FLUSH, + S3C2410_DMAOP_TIMEOUT, /* internal signal to handler */ + S3C2410_DMAOP_STARTED, /* indicate channel started */ +}; /* flags */ @@ -112,14 +139,17 @@ enum s3c2410_dma_loadst { /* dma buffer */ -struct s3c2410_dma_buf; +struct s3c2410_dma_client { + char *name; +}; -/* s3c2410_dma_buf +/* s3c2410_dma_buf_s * * internally used buffer structure to describe a queued or running * buffer. */ +struct s3c2410_dma_buf; struct s3c2410_dma_buf { struct s3c2410_dma_buf *next; int magic; /* magic */ @@ -131,6 +161,20 @@ struct s3c2410_dma_buf { /* [1] is this updated for both recv/send modes? */ +struct s3c2410_dma_chan; + +/* s3c2410_dma_cbfn_t + * + * buffer callback routine type +*/ + +typedef void (*s3c2410_dma_cbfn_t)(struct s3c2410_dma_chan *, + void *buf, int size, + enum s3c2410_dma_buffresult result); + +typedef int (*s3c2410_dma_opfn_t)(struct s3c2410_dma_chan *, + enum s3c2410_chan_op ); + struct s3c2410_dma_stats { unsigned long loads; unsigned long timeout_longest; @@ -162,10 +206,10 @@ struct s3c2410_dma_chan { /* channel configuration */ enum s3c2410_dmasrc source; - enum dma_ch req_ch; unsigned long dev_addr; unsigned long load_timeout; unsigned int flags; /* channel flags */ + unsigned int hw_cfg; /* last hw config */ struct s3c24xx_dma_map *map; /* channel hw maps */ @@ -192,6 +236,213 @@ struct s3c2410_dma_chan { struct sys_device dev; }; +/* the currently allocated channel information */ +extern struct s3c2410_dma_chan s3c2410_chans[]; + +/* note, we don't really use dma_device_t at the moment */ typedef unsigned long dma_device_t; +/* functions --------------------------------------------------------------- */ + +/* s3c2410_dma_request + * + * request a dma channel exclusivley +*/ + +extern int s3c2410_dma_request(unsigned int channel, + struct s3c2410_dma_client *, void *dev); + + +/* s3c2410_dma_ctrl + * + * change the state of the dma channel +*/ + +extern int s3c2410_dma_ctrl(unsigned int channel, enum s3c2410_chan_op op); + +/* s3c2410_dma_setflags + * + * set the channel's flags to a given state +*/ + +extern int s3c2410_dma_setflags(unsigned int channel, + unsigned int flags); + +/* s3c2410_dma_free + * + * free the dma channel (will also abort any outstanding operations) +*/ + +extern int s3c2410_dma_free(unsigned int channel, struct s3c2410_dma_client *); + +/* s3c2410_dma_enqueue + * + * place the given buffer onto the queue of operations for the channel. + * The buffer must be allocated from dma coherent memory, or the Dcache/WB + * drained before the buffer is given to the DMA system. +*/ + +extern int s3c2410_dma_enqueue(unsigned int channel, void *id, + dma_addr_t data, int size); + +/* s3c2410_dma_config + * + * configure the dma channel +*/ + +extern int s3c2410_dma_config(unsigned int channel, int xferunit, int dcon); + +/* s3c2410_dma_devconfig + * + * configure the device we're talking to +*/ + +extern int s3c2410_dma_devconfig(int channel, enum s3c2410_dmasrc source, + int hwcfg, unsigned long devaddr); + +/* s3c2410_dma_getposition + * + * get the position that the dma transfer is currently at +*/ + +extern int s3c2410_dma_getposition(unsigned int channel, + dma_addr_t *src, dma_addr_t *dest); + +extern int s3c2410_dma_set_opfn(unsigned int, s3c2410_dma_opfn_t rtn); +extern int s3c2410_dma_set_buffdone_fn(unsigned int, s3c2410_dma_cbfn_t rtn); + +/* DMA Register definitions */ + +#define S3C2410_DMA_DISRC (0x00) +#define S3C2410_DMA_DISRCC (0x04) +#define S3C2410_DMA_DIDST (0x08) +#define S3C2410_DMA_DIDSTC (0x0C) +#define S3C2410_DMA_DCON (0x10) +#define S3C2410_DMA_DSTAT (0x14) +#define S3C2410_DMA_DCSRC (0x18) +#define S3C2410_DMA_DCDST (0x1C) +#define S3C2410_DMA_DMASKTRIG (0x20) +#define S3C2412_DMA_DMAREQSEL (0x24) +#define S3C2443_DMA_DMAREQSEL (0x24) + +#define S3C2410_DISRCC_INC (1<<0) +#define S3C2410_DISRCC_APB (1<<1) + +#define S3C2410_DMASKTRIG_STOP (1<<2) +#define S3C2410_DMASKTRIG_ON (1<<1) +#define S3C2410_DMASKTRIG_SWTRIG (1<<0) + +#define S3C2410_DCON_DEMAND (0<<31) +#define S3C2410_DCON_HANDSHAKE (1<<31) +#define S3C2410_DCON_SYNC_PCLK (0<<30) +#define S3C2410_DCON_SYNC_HCLK (1<<30) + +#define S3C2410_DCON_INTREQ (1<<29) + +#define S3C2410_DCON_CH0_XDREQ0 (0<<24) +#define S3C2410_DCON_CH0_UART0 (1<<24) +#define S3C2410_DCON_CH0_SDI (2<<24) +#define S3C2410_DCON_CH0_TIMER (3<<24) +#define S3C2410_DCON_CH0_USBEP1 (4<<24) + +#define S3C2410_DCON_CH1_XDREQ1 (0<<24) +#define S3C2410_DCON_CH1_UART1 (1<<24) +#define S3C2410_DCON_CH1_I2SSDI (2<<24) +#define S3C2410_DCON_CH1_SPI (3<<24) +#define S3C2410_DCON_CH1_USBEP2 (4<<24) + +#define S3C2410_DCON_CH2_I2SSDO (0<<24) +#define S3C2410_DCON_CH2_I2SSDI (1<<24) +#define S3C2410_DCON_CH2_SDI (2<<24) +#define S3C2410_DCON_CH2_TIMER (3<<24) +#define S3C2410_DCON_CH2_USBEP3 (4<<24) + +#define S3C2410_DCON_CH3_UART2 (0<<24) +#define S3C2410_DCON_CH3_SDI (1<<24) +#define S3C2410_DCON_CH3_SPI (2<<24) +#define S3C2410_DCON_CH3_TIMER (3<<24) +#define S3C2410_DCON_CH3_USBEP4 (4<<24) + +#define S3C2410_DCON_SRCSHIFT (24) +#define S3C2410_DCON_SRCMASK (7<<24) + +#define S3C2410_DCON_BYTE (0<<20) +#define S3C2410_DCON_HALFWORD (1<<20) +#define S3C2410_DCON_WORD (2<<20) + +#define S3C2410_DCON_AUTORELOAD (0<<22) +#define S3C2410_DCON_NORELOAD (1<<22) +#define S3C2410_DCON_HWTRIG (1<<23) + +#ifdef CONFIG_CPU_S3C2440 +#define S3C2440_DIDSTC_CHKINT (1<<2) + +#define S3C2440_DCON_CH0_I2SSDO (5<<24) +#define S3C2440_DCON_CH0_PCMIN (6<<24) + +#define S3C2440_DCON_CH1_PCMOUT (5<<24) +#define S3C2440_DCON_CH1_SDI (6<<24) + +#define S3C2440_DCON_CH2_PCMIN (5<<24) +#define S3C2440_DCON_CH2_MICIN (6<<24) + +#define S3C2440_DCON_CH3_MICIN (5<<24) +#define S3C2440_DCON_CH3_PCMOUT (6<<24) +#endif + +#ifdef CONFIG_CPU_S3C2412 + +#define S3C2412_DMAREQSEL_SRC(x) ((x)<<1) + +#define S3C2412_DMAREQSEL_HW (1) + +#define S3C2412_DMAREQSEL_SPI0TX S3C2412_DMAREQSEL_SRC(0) +#define S3C2412_DMAREQSEL_SPI0RX S3C2412_DMAREQSEL_SRC(1) +#define S3C2412_DMAREQSEL_SPI1TX S3C2412_DMAREQSEL_SRC(2) +#define S3C2412_DMAREQSEL_SPI1RX S3C2412_DMAREQSEL_SRC(3) +#define S3C2412_DMAREQSEL_I2STX S3C2412_DMAREQSEL_SRC(4) +#define S3C2412_DMAREQSEL_I2SRX S3C2412_DMAREQSEL_SRC(5) +#define S3C2412_DMAREQSEL_TIMER S3C2412_DMAREQSEL_SRC(9) +#define S3C2412_DMAREQSEL_SDI S3C2412_DMAREQSEL_SRC(10) +#define S3C2412_DMAREQSEL_USBEP1 S3C2412_DMAREQSEL_SRC(13) +#define S3C2412_DMAREQSEL_USBEP2 S3C2412_DMAREQSEL_SRC(14) +#define S3C2412_DMAREQSEL_USBEP3 S3C2412_DMAREQSEL_SRC(15) +#define S3C2412_DMAREQSEL_USBEP4 S3C2412_DMAREQSEL_SRC(16) +#define S3C2412_DMAREQSEL_XDREQ0 S3C2412_DMAREQSEL_SRC(17) +#define S3C2412_DMAREQSEL_XDREQ1 S3C2412_DMAREQSEL_SRC(18) +#define S3C2412_DMAREQSEL_UART0_0 S3C2412_DMAREQSEL_SRC(19) +#define S3C2412_DMAREQSEL_UART0_1 S3C2412_DMAREQSEL_SRC(20) +#define S3C2412_DMAREQSEL_UART1_0 S3C2412_DMAREQSEL_SRC(21) +#define S3C2412_DMAREQSEL_UART1_1 S3C2412_DMAREQSEL_SRC(22) +#define S3C2412_DMAREQSEL_UART2_0 S3C2412_DMAREQSEL_SRC(23) +#define S3C2412_DMAREQSEL_UART2_1 S3C2412_DMAREQSEL_SRC(24) + +#endif + +#define S3C2443_DMAREQSEL_SRC(x) ((x)<<1) + +#define S3C2443_DMAREQSEL_HW (1) + +#define S3C2443_DMAREQSEL_SPI0TX S3C2443_DMAREQSEL_SRC(0) +#define S3C2443_DMAREQSEL_SPI0RX S3C2443_DMAREQSEL_SRC(1) +#define S3C2443_DMAREQSEL_SPI1TX S3C2443_DMAREQSEL_SRC(2) +#define S3C2443_DMAREQSEL_SPI1RX S3C2443_DMAREQSEL_SRC(3) +#define S3C2443_DMAREQSEL_I2STX S3C2443_DMAREQSEL_SRC(4) +#define S3C2443_DMAREQSEL_I2SRX S3C2443_DMAREQSEL_SRC(5) +#define S3C2443_DMAREQSEL_TIMER S3C2443_DMAREQSEL_SRC(9) +#define S3C2443_DMAREQSEL_SDI S3C2443_DMAREQSEL_SRC(10) +#define S3C2443_DMAREQSEL_XDREQ0 S3C2443_DMAREQSEL_SRC(17) +#define S3C2443_DMAREQSEL_XDREQ1 S3C2443_DMAREQSEL_SRC(18) +#define S3C2443_DMAREQSEL_UART0_0 S3C2443_DMAREQSEL_SRC(19) +#define S3C2443_DMAREQSEL_UART0_1 S3C2443_DMAREQSEL_SRC(20) +#define S3C2443_DMAREQSEL_UART1_0 S3C2443_DMAREQSEL_SRC(21) +#define S3C2443_DMAREQSEL_UART1_1 S3C2443_DMAREQSEL_SRC(22) +#define S3C2443_DMAREQSEL_UART2_0 S3C2443_DMAREQSEL_SRC(23) +#define S3C2443_DMAREQSEL_UART2_1 S3C2443_DMAREQSEL_SRC(24) +#define S3C2443_DMAREQSEL_UART3_0 S3C2443_DMAREQSEL_SRC(25) +#define S3C2443_DMAREQSEL_UART3_1 S3C2443_DMAREQSEL_SRC(26) +#define S3C2443_DMAREQSEL_PCMOUT S3C2443_DMAREQSEL_SRC(27) +#define S3C2443_DMAREQSEL_PCMIN S3C2443_DMAREQSEL_SRC(28) +#define S3C2443_DMAREQSEL_MICIN S3C2443_DMAREQSEL_SRC(29) + #endif /* __ASM_ARCH_DMA_H */ diff --git a/trunk/arch/arm/mach-s3c2410/include/mach/hardware.h b/trunk/arch/arm/mach-s3c2410/include/mach/hardware.h index 74d5a1a4024c..d7745d85392e 100644 --- a/trunk/arch/arm/mach-s3c2410/include/mach/hardware.h +++ b/trunk/arch/arm/mach-s3c2410/include/mach/hardware.h @@ -46,17 +46,6 @@ extern unsigned int s3c2410_gpio_getcfg(unsigned int pin); extern int s3c2410_gpio_getirq(unsigned int pin); -/* s3c2410_gpio_irq2pin - * - * turn the given irq number into the corresponding GPIO number - * - * returns: - * < 0 = no pin - * >=0 = gpio pin number -*/ - -extern int s3c2410_gpio_irq2pin(unsigned int irq); - #ifdef CONFIG_CPU_S3C2400 extern int s3c2400_gpio_getirq(unsigned int pin); diff --git a/trunk/arch/arm/mach-s3c2410/include/mach/system-reset.h b/trunk/arch/arm/mach-s3c2410/include/mach/system-reset.h index 6faadcee7729..b8687f71c304 100644 --- a/trunk/arch/arm/mach-s3c2410/include/mach/system-reset.h +++ b/trunk/arch/arm/mach-s3c2410/include/mach/system-reset.h @@ -11,13 +11,21 @@ */ #include -#include +#include + +#include +#include + +#include +#include extern void (*s3c24xx_reset_hook)(void); static void arch_reset(char mode, const char *cmd) { + struct clk *wdtclk; + if (mode == 's') { cpu_reset(0); } @@ -25,7 +33,31 @@ arch_reset(char mode, const char *cmd) if (s3c24xx_reset_hook) s3c24xx_reset_hook(); - arch_wdt_reset(); + printk("arch_reset: attempting watchdog reset\n"); + + __raw_writel(0, S3C2410_WTCON); /* disable watchdog, to be safe */ + + wdtclk = clk_get(NULL, "watchdog"); + if (!IS_ERR(wdtclk)) { + clk_enable(wdtclk); + } else + printk(KERN_WARNING "%s: warning: cannot get watchdog clock\n", __func__); + + /* put initial values into count and data */ + __raw_writel(0x80, S3C2410_WTCNT); + __raw_writel(0x80, S3C2410_WTDAT); + + /* set the watchdog to go and reset... */ + __raw_writel(S3C2410_WTCON_ENABLE|S3C2410_WTCON_DIV16|S3C2410_WTCON_RSTEN | + S3C2410_WTCON_PRESCALE(0x20), S3C2410_WTCON); + + /* wait for reset to assert... */ + mdelay(500); + + printk(KERN_ERR "Watchdog reset failed to assert reset\n"); + + /* delay to allow the serial port to show the message */ + mdelay(50); /* we'll take a jump through zero as a poor second */ cpu_reset(0); diff --git a/trunk/arch/arm/mach-s3c2412/dma.c b/trunk/arch/arm/mach-s3c2412/dma.c index f8d16fc10bc6..9e3478506c6f 100644 --- a/trunk/arch/arm/mach-s3c2412/dma.c +++ b/trunk/arch/arm/mach-s3c2412/dma.c @@ -20,13 +20,12 @@ #include -#include +#include #include #include #include #include -#include #include #include #include diff --git a/trunk/arch/arm/mach-s3c2440/dma.c b/trunk/arch/arm/mach-s3c2440/dma.c index e08e081430f0..69b6cf34df47 100644 --- a/trunk/arch/arm/mach-s3c2440/dma.c +++ b/trunk/arch/arm/mach-s3c2440/dma.c @@ -17,16 +17,14 @@ #include #include -#include #include -#include +#include #include #include #include #include -#include #include #include #include diff --git a/trunk/arch/arm/mach-s3c2443/dma.c b/trunk/arch/arm/mach-s3c2443/dma.c index 397f3b5c0b47..8430e5829186 100644 --- a/trunk/arch/arm/mach-s3c2443/dma.c +++ b/trunk/arch/arm/mach-s3c2443/dma.c @@ -20,13 +20,12 @@ #include -#include +#include #include #include #include #include -#include #include #include #include diff --git a/trunk/arch/arm/mach-s3c6400/include/mach/dma.h b/trunk/arch/arm/mach-s3c6400/include/mach/dma.h index 1067619f0ba0..9771ac2cb07e 100644 --- a/trunk/arch/arm/mach-s3c6400/include/mach/dma.h +++ b/trunk/arch/arm/mach-s3c6400/include/mach/dma.h @@ -11,63 +11,6 @@ #ifndef __ASM_ARCH_DMA_H #define __ASM_ARCH_DMA_H __FILE__ -#define S3C_DMA_CHANNELS (16) - -/* see mach-s3c2410/dma.h for notes on dma channel numbers */ - -/* Note, for the S3C64XX architecture we keep the DMACH_ - * defines in the order they are allocated to [S]DMA0/[S]DMA1 - * so that is easy to do DHACH_ -> DMA controller conversion - */ -enum dma_ch { - /* DMA0/SDMA0 */ - DMACH_UART0 = 0, - DMACH_UART0_SRC2, - DMACH_UART1, - DMACH_UART1_SRC2, - DMACH_UART2, - DMACH_UART2_SRC2, - DMACH_UART3, - DMACH_UART3_SRC2, - DMACH_PCM0_TX, - DMACH_PCM0_RX, - DMACH_I2S0_OUT, - DMACH_I2S0_IN, - DMACH_SPI0_TX, - DMACH_SPI0_RX, - DMACH_HSI_I2SV40_TX, - DMACH_HSI_I2SV40_RX, - - /* DMA1/SDMA1 */ - DMACH_PCM1_TX = 16, - DMACH_PCM1_RX, - DMACH_I2S1_OUT, - DMACH_I2S1_IN, - DMACH_SPI1_TX, - DMACH_SPI1_RX, - DMACH_AC97_PCMOUT, - DMACH_AC97_PCMIN, - DMACH_AC97_MICIN, - DMACH_PWM, - DMACH_IRDA, - DMACH_EXTERNAL, - DMACH_RES1, - DMACH_RES2, - DMACH_SECURITY_RX, /* SDMA1 only */ - DMACH_SECURITY_TX, /* SDMA1 only */ - DMACH_MAX /* the end */ -}; - -static __inline__ int s3c_dma_has_circular(void) -{ - /* we will be supporting ciruclar buffers as soon as we have DMA - * engine support. - */ - return 1; -} - -#define S3C2410_DMAF_CIRCULAR (1 << 0) - -#include +/* currently nothing here, placeholder */ #endif /* __ASM_ARCH_IRQ_H */ diff --git a/trunk/arch/arm/mach-s3c6400/include/mach/map.h b/trunk/arch/arm/mach-s3c6400/include/mach/map.h index 7a1e5a2455b3..ea4223b55099 100644 --- a/trunk/arch/arm/mach-s3c6400/include/mach/map.h +++ b/trunk/arch/arm/mach-s3c6400/include/mach/map.h @@ -39,8 +39,6 @@ #define S3C_VA_UART3 S3C_VA_UARTx(3) #define S3C64XX_PA_FB (0x77100000) -#define S3C64XX_PA_USB_HSOTG (0x7C000000) -#define S3C64XX_PA_WATCHDOG (0x7E004000) #define S3C64XX_PA_SYSCON (0x7E00F000) #define S3C64XX_PA_TIMER (0x7F006000) #define S3C64XX_PA_IIC0 (0x7F004000) @@ -72,6 +70,5 @@ #define S3C_PA_IIC1 S3C64XX_PA_IIC1 #define S3C_PA_FB S3C64XX_PA_FB #define S3C_PA_USBHOST S3C64XX_PA_USBHOST -#define S3C_PA_USB_HSOTG S3C64XX_PA_USB_HSOTG #endif /* __ASM_ARCH_6400_MAP_H */ diff --git a/trunk/arch/arm/mach-s3c6400/include/mach/system.h b/trunk/arch/arm/mach-s3c6400/include/mach/system.h index 2e58cb7a7147..090cfd969bc7 100644 --- a/trunk/arch/arm/mach-s3c6400/include/mach/system.h +++ b/trunk/arch/arm/mach-s3c6400/include/mach/system.h @@ -11,8 +11,6 @@ #ifndef __ASM_ARCH_SYSTEM_H #define __ASM_ARCH_SYSTEM_H __FILE__ -#include - static void arch_idle(void) { /* nothing here yet */ @@ -20,11 +18,7 @@ static void arch_idle(void) static void arch_reset(char mode, const char *cmd) { - if (mode != 's') - arch_wdt_reset(); - - /* if all else fails, or mode was for soft, jump to 0 */ - cpu_reset(0); + /* nothing here yet */ } #endif /* __ASM_ARCH_IRQ_H */ diff --git a/trunk/arch/arm/mach-s3c6410/Kconfig b/trunk/arch/arm/mach-s3c6410/Kconfig index e63aac7f4e5a..9c163f365c80 100644 --- a/trunk/arch/arm/mach-s3c6410/Kconfig +++ b/trunk/arch/arm/mach-s3c6410/Kconfig @@ -36,7 +36,6 @@ config MACH_SMDK6410 select S3C_DEV_I2C1 select S3C_DEV_FB select S3C_DEV_USB_HOST - select S3C_DEV_USB_HSOTG select S3C6410_SETUP_SDHCI select S3C64XX_SETUP_I2C1 select S3C64XX_SETUP_FB_24BPP diff --git a/trunk/arch/arm/mach-s3c6410/mach-smdk6410.c b/trunk/arch/arm/mach-s3c6410/mach-smdk6410.c index bc9a7dea567f..8fd7632735df 100644 --- a/trunk/arch/arm/mach-s3c6410/mach-smdk6410.c +++ b/trunk/arch/arm/mach-s3c6410/mach-smdk6410.c @@ -183,7 +183,6 @@ static struct platform_device *smdk6410_devices[] __initdata = { &s3c_device_i2c1, &s3c_device_fb, &s3c_device_usb, - &s3c_device_usb_hsotg, &smdk6410_lcd_powerdev, &smdk6410_smsc911x, diff --git a/trunk/arch/arm/plat-s3c/Kconfig b/trunk/arch/arm/plat-s3c/Kconfig index 935c7558469b..a4c5027421d3 100644 --- a/trunk/arch/arm/plat-s3c/Kconfig +++ b/trunk/arch/arm/plat-s3c/Kconfig @@ -159,13 +159,6 @@ config S3C_GPIO_CFG_S3C64XX Internal configuration to enable S3C64XX style GPIO configuration functions. -# DMA - -config S3C_DMA - bool - help - Internal configuration for S3C DMA core - # device definitions to compile in config S3C_DEV_HSMMC @@ -193,9 +186,4 @@ config S3C_DEV_USB_HOST help Compile in platform device definition for USB host. -config S3C_DEV_USB_HSOTG - bool - help - Compile in platform device definition for USB high-speed OtG - endif diff --git a/trunk/arch/arm/plat-s3c/Makefile b/trunk/arch/arm/plat-s3c/Makefile index 610651455a78..bfc8f537db18 100644 --- a/trunk/arch/arm/plat-s3c/Makefile +++ b/trunk/arch/arm/plat-s3c/Makefile @@ -18,10 +18,6 @@ obj-y += pwm-clock.o obj-y += gpio.o obj-y += gpio-config.o -# DMA support - -obj-$(CONFIG_S3C_DMA) += dma.o - # PM support obj-$(CONFIG_PM) += pm.o @@ -36,4 +32,3 @@ obj-y += dev-i2c0.o obj-$(CONFIG_S3C_DEV_I2C1) += dev-i2c1.o obj-$(CONFIG_S3C_DEV_FB) += dev-fb.o obj-$(CONFIG_S3C_DEV_USB_HOST) += dev-usb.o -obj-$(CONFIG_S3C_DEV_USB_HSOTG) += dev-usb-hsotg.o diff --git a/trunk/arch/arm/plat-s3c/dev-usb-hsotg.c b/trunk/arch/arm/plat-s3c/dev-usb-hsotg.c deleted file mode 100644 index e2f604b51c86..000000000000 --- a/trunk/arch/arm/plat-s3c/dev-usb-hsotg.c +++ /dev/null @@ -1,41 +0,0 @@ -/* linux/arch/arm/plat-s3c/dev-usb-hsotg.c - * - * Copyright 2008 Simtec Electronics - * Ben Dooks - * http://armlinux.simtec.co.uk/ - * - * S3C series device definition for USB high-speed UDC/OtG block - * - * 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. -*/ - -#include -#include -#include - -#include -#include - -#include - -static struct resource s3c_usb_hsotg_resources[] = { - [0] = { - .start = S3C_PA_USB_HSOTG, - .end = S3C_PA_USB_HSOTG + 0x10000 - 1, - .flags = IORESOURCE_MEM, - }, - [1] = { - .start = IRQ_OTG, - .end = IRQ_OTG, - .flags = IORESOURCE_IRQ, - }, -}; - -struct platform_device s3c_device_usb_hsotg = { - .name = "s3c-hsotg", - .id = -1, - .num_resources = ARRAY_SIZE(s3c_usb_hsotg_resources), - .resource = s3c_usb_hsotg_resources, -}; diff --git a/trunk/arch/arm/plat-s3c/dma.c b/trunk/arch/arm/plat-s3c/dma.c deleted file mode 100644 index c9db75c06af5..000000000000 --- a/trunk/arch/arm/plat-s3c/dma.c +++ /dev/null @@ -1,86 +0,0 @@ -/* linux/arch/arm/plat-s3c/dma.c - * - * Copyright (c) 2003-2005,2006,2009 Simtec Electronics - * Ben Dooks - * http://armlinux.simtec.co.uk/ - * - * S3C DMA core - * - * 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. -*/ - -struct s3c2410_dma_buf; - -#include -#include -#include - -#include -#include - -#include - -/* dma channel state information */ -struct s3c2410_dma_chan s3c2410_chans[S3C_DMA_CHANNELS]; -struct s3c2410_dma_chan *s3c_dma_chan_map[DMACH_MAX]; - -/* s3c_dma_lookup_channel - * - * change the dma channel number given into a real dma channel id -*/ - -struct s3c2410_dma_chan *s3c_dma_lookup_channel(unsigned int channel) -{ - if (channel & DMACH_LOW_LEVEL) - return &s3c2410_chans[channel & ~DMACH_LOW_LEVEL]; - else - return s3c_dma_chan_map[channel]; -} - -/* do we need to protect the settings of the fields from - * irq? -*/ - -int s3c2410_dma_set_opfn(unsigned int channel, s3c2410_dma_opfn_t rtn) -{ - struct s3c2410_dma_chan *chan = s3c_dma_lookup_channel(channel); - - if (chan == NULL) - return -EINVAL; - - pr_debug("%s: chan=%p, op rtn=%p\n", __func__, chan, rtn); - - chan->op_fn = rtn; - - return 0; -} -EXPORT_SYMBOL(s3c2410_dma_set_opfn); - -int s3c2410_dma_set_buffdone_fn(unsigned int channel, s3c2410_dma_cbfn_t rtn) -{ - struct s3c2410_dma_chan *chan = s3c_dma_lookup_channel(channel); - - if (chan == NULL) - return -EINVAL; - - pr_debug("%s: chan=%p, callback rtn=%p\n", __func__, chan, rtn); - - chan->callback_fn = rtn; - - return 0; -} -EXPORT_SYMBOL(s3c2410_dma_set_buffdone_fn); - -int s3c2410_dma_setflags(unsigned int channel, unsigned int flags) -{ - struct s3c2410_dma_chan *chan = s3c_dma_lookup_channel(channel); - - if (chan == NULL) - return -EINVAL; - - chan->flags = flags; - return 0; -} -EXPORT_SYMBOL(s3c2410_dma_setflags); diff --git a/trunk/arch/arm/plat-s3c/include/plat/adc.h b/trunk/arch/arm/plat-s3c/include/plat/adc.h index d847bd476b6c..43df2a404b0b 100644 --- a/trunk/arch/arm/plat-s3c/include/plat/adc.h +++ b/trunk/arch/arm/plat-s3c/include/plat/adc.h @@ -19,12 +19,10 @@ struct s3c_adc_client; extern int s3c_adc_start(struct s3c_adc_client *client, unsigned int channel, unsigned int nr_samples); -extern struct s3c_adc_client * - s3c_adc_register(struct platform_device *pdev, - void (*select)(unsigned selected), - void (*conv)(unsigned d0, unsigned d1, - unsigned *samples_left), - unsigned int is_ts); +extern struct s3c_adc_client *s3c_adc_register(struct platform_device *pdev, + void (*select)(unsigned selected), + void (*conv)(unsigned d0, unsigned d1), + unsigned int is_ts); extern void s3c_adc_release(struct s3c_adc_client *client); diff --git a/trunk/arch/arm/plat-s3c/include/plat/devs.h b/trunk/arch/arm/plat-s3c/include/plat/devs.h index a0b6768fddcf..26f0cec3ac04 100644 --- a/trunk/arch/arm/plat-s3c/include/plat/devs.h +++ b/trunk/arch/arm/plat-s3c/include/plat/devs.h @@ -45,7 +45,6 @@ extern struct platform_device s3c_device_spi1; extern struct platform_device s3c_device_nand; extern struct platform_device s3c_device_usbgadget; -extern struct platform_device s3c_device_usb_hsotg; /* s3c2440 specific devices */ diff --git a/trunk/arch/arm/plat-s3c/include/plat/dma-core.h b/trunk/arch/arm/plat-s3c/include/plat/dma-core.h deleted file mode 100644 index 32ff2a92cb3c..000000000000 --- a/trunk/arch/arm/plat-s3c/include/plat/dma-core.h +++ /dev/null @@ -1,22 +0,0 @@ -/* arch/arm/plat-s3c/include/plat/dma.h - * - * Copyright 2008 Openmoko, Inc. - * Copyright 2008 Simtec Electronics - * Ben Dooks - * http://armlinux.simtec.co.uk/ - * - * Samsung S3C DMA core support - * - * 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. -*/ - -extern struct s3c2410_dma_chan *s3c_dma_lookup_channel(unsigned int channel); - -extern struct s3c2410_dma_chan *s3c_dma_chan_map[]; - -/* the currently allocated channel information */ -extern struct s3c2410_dma_chan s3c2410_chans[]; - - diff --git a/trunk/arch/arm/plat-s3c/include/plat/dma.h b/trunk/arch/arm/plat-s3c/include/plat/dma.h deleted file mode 100644 index 34dba98f08e1..000000000000 --- a/trunk/arch/arm/plat-s3c/include/plat/dma.h +++ /dev/null @@ -1,127 +0,0 @@ -/* arch/arm/plat-s3c/include/plat/dma.h - * - * Copyright (C) 2003,2004,2006 Simtec Electronics - * Ben Dooks - * - * Samsung S3C DMA support - * - * 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. -*/ - -enum s3c2410_dma_buffresult { - S3C2410_RES_OK, - S3C2410_RES_ERR, - S3C2410_RES_ABORT -}; - -enum s3c2410_dmasrc { - S3C2410_DMASRC_HW, /* source is memory */ - S3C2410_DMASRC_MEM /* source is hardware */ -}; - -/* enum s3c2410_chan_op - * - * operation codes passed to the DMA code by the user, and also used - * to inform the current channel owner of any changes to the system state -*/ - -enum s3c2410_chan_op { - S3C2410_DMAOP_START, - S3C2410_DMAOP_STOP, - S3C2410_DMAOP_PAUSE, - S3C2410_DMAOP_RESUME, - S3C2410_DMAOP_FLUSH, - S3C2410_DMAOP_TIMEOUT, /* internal signal to handler */ - S3C2410_DMAOP_STARTED, /* indicate channel started */ -}; - -struct s3c2410_dma_client { - char *name; -}; - -struct s3c2410_dma_chan; - -/* s3c2410_dma_cbfn_t - * - * buffer callback routine type -*/ - -typedef void (*s3c2410_dma_cbfn_t)(struct s3c2410_dma_chan *, - void *buf, int size, - enum s3c2410_dma_buffresult result); - -typedef int (*s3c2410_dma_opfn_t)(struct s3c2410_dma_chan *, - enum s3c2410_chan_op ); - - - -/* s3c2410_dma_request - * - * request a dma channel exclusivley -*/ - -extern int s3c2410_dma_request(unsigned int channel, - struct s3c2410_dma_client *, void *dev); - - -/* s3c2410_dma_ctrl - * - * change the state of the dma channel -*/ - -extern int s3c2410_dma_ctrl(unsigned int channel, enum s3c2410_chan_op op); - -/* s3c2410_dma_setflags - * - * set the channel's flags to a given state -*/ - -extern int s3c2410_dma_setflags(unsigned int channel, - unsigned int flags); - -/* s3c2410_dma_free - * - * free the dma channel (will also abort any outstanding operations) -*/ - -extern int s3c2410_dma_free(unsigned int channel, struct s3c2410_dma_client *); - -/* s3c2410_dma_enqueue - * - * place the given buffer onto the queue of operations for the channel. - * The buffer must be allocated from dma coherent memory, or the Dcache/WB - * drained before the buffer is given to the DMA system. -*/ - -extern int s3c2410_dma_enqueue(unsigned int channel, void *id, - dma_addr_t data, int size); - -/* s3c2410_dma_config - * - * configure the dma channel -*/ - -extern int s3c2410_dma_config(unsigned int channel, int xferunit); - -/* s3c2410_dma_devconfig - * - * configure the device we're talking to -*/ - -extern int s3c2410_dma_devconfig(int channel, enum s3c2410_dmasrc source, - unsigned long devaddr); - -/* s3c2410_dma_getposition - * - * get the position that the dma transfer is currently at -*/ - -extern int s3c2410_dma_getposition(unsigned int channel, - dma_addr_t *src, dma_addr_t *dest); - -extern int s3c2410_dma_set_opfn(unsigned int, s3c2410_dma_opfn_t rtn); -extern int s3c2410_dma_set_buffdone_fn(unsigned int, s3c2410_dma_cbfn_t rtn); - - diff --git a/trunk/arch/arm/plat-s3c/include/plat/udc-hs.h b/trunk/arch/arm/plat-s3c/include/plat/udc-hs.h deleted file mode 100644 index dd04db043109..000000000000 --- a/trunk/arch/arm/plat-s3c/include/plat/udc-hs.h +++ /dev/null @@ -1,29 +0,0 @@ -/* arch/arm/plat-s3c/include/plat/udc-hs.h - * - * Copyright 2008 Openmoko, Inc. - * Copyright 2008 Simtec Electronics - * Ben Dooks - * http://armlinux.simtec.co.uk/ - * - * S3C USB2.0 High-speed / OtG platform information - * - * 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. -*/ - -enum s3c_hostg_dmamode { - S3C_HSOTG_DMA_NONE, /* do not use DMA at-all */ - S3C_HSOTG_DMA_ONLY, /* always use DMA */ - S3C_HSOTG_DMA_DRV, /* DMA is chosen by driver */ -}; - -/** - * struct s3c_hsotg_plat - platform data for high-speed otg/udc - * @dma: Whether to use DMA or not. - * @is_osc: The clock source is an oscillator, not a crystal - */ -struct s3c_hsotg_plat { - enum s3c_hostg_dmamode dma; - unsigned int is_osc : 1; -}; diff --git a/trunk/arch/arm/plat-s3c/include/plat/watchdog-reset.h b/trunk/arch/arm/plat-s3c/include/plat/watchdog-reset.h deleted file mode 100644 index 54b762acb5a0..000000000000 --- a/trunk/arch/arm/plat-s3c/include/plat/watchdog-reset.h +++ /dev/null @@ -1,49 +0,0 @@ -/* arch/arm/plat-s3c/include/plat/watchdog-reset.h - * - * Copyright (c) 2008 Simtec Electronics - * Ben Dooks - * - * S3C2410 - System define for arch_reset() function - * - * 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. -*/ - -#include -#include - -#include -#include -#include - -static inline void arch_wdt_reset(void) -{ - struct clk *wdtclk; - - printk("arch_reset: attempting watchdog reset\n"); - - __raw_writel(0, S3C2410_WTCON); /* disable watchdog, to be safe */ - - wdtclk = clk_get(NULL, "watchdog"); - if (!IS_ERR(wdtclk)) { - clk_enable(wdtclk); - } else - printk(KERN_WARNING "%s: warning: cannot get watchdog clock\n", __func__); - - /* put initial values into count and data */ - __raw_writel(0x80, S3C2410_WTCNT); - __raw_writel(0x80, S3C2410_WTDAT); - - /* set the watchdog to go and reset... */ - __raw_writel(S3C2410_WTCON_ENABLE|S3C2410_WTCON_DIV16|S3C2410_WTCON_RSTEN | - S3C2410_WTCON_PRESCALE(0x20), S3C2410_WTCON); - - /* wait for reset to assert... */ - mdelay(500); - - printk(KERN_ERR "Watchdog reset failed to assert reset\n"); - - /* delay to allow the serial port to show the message */ - mdelay(50); -} diff --git a/trunk/arch/arm/plat-s3c24xx/Kconfig b/trunk/arch/arm/plat-s3c24xx/Kconfig index 5b0bc914f58e..2c8a2f5d75ff 100644 --- a/trunk/arch/arm/plat-s3c24xx/Kconfig +++ b/trunk/arch/arm/plat-s3c24xx/Kconfig @@ -71,7 +71,6 @@ config PM_SIMTEC config S3C2410_DMA bool "S3C2410 DMA support" depends on ARCH_S3C2410 - select S3C_DMA help S3C2410 DMA support. This is needed for drivers like sound which use the S3C2410's DMA system to move data to and from the diff --git a/trunk/arch/arm/plat-s3c24xx/adc.c b/trunk/arch/arm/plat-s3c24xx/adc.c index ee1baf11ad9e..91adfa71c172 100644 --- a/trunk/arch/arm/plat-s3c24xx/adc.c +++ b/trunk/arch/arm/plat-s3c24xx/adc.c @@ -45,8 +45,7 @@ struct s3c_adc_client { unsigned char channel; void (*select_cb)(unsigned selected); - void (*convert_cb)(unsigned val1, unsigned val2, - unsigned *samples_left); + void (*convert_cb)(unsigned val1, unsigned val2); }; struct adc_device { @@ -159,8 +158,7 @@ static void s3c_adc_default_select(unsigned select) struct s3c_adc_client *s3c_adc_register(struct platform_device *pdev, void (*select)(unsigned int selected), - void (*conv)(unsigned d0, unsigned d1, - unsigned *samples_left), + void (*conv)(unsigned d0, unsigned d1), unsigned int is_ts) { struct s3c_adc_client *client; @@ -229,10 +227,9 @@ static irqreturn_t s3c_adc_irq(int irq, void *pw) data1 = readl(adc->regs + S3C2410_ADCDAT1); adc_dbg(adc, "read %d: 0x%04x, 0x%04x\n", client->nr_samples, data0, data1); - client->nr_samples--; - (client->convert_cb)(data0 & 0x3ff, data1 & 0x3ff, &client->nr_samples); + (client->convert_cb)(data0 & 0x3ff, data1 & 0x3ff); - if (client->nr_samples > 0) { + if (--client->nr_samples > 0) { /* fire another conversion for this */ client->select_cb(1); diff --git a/trunk/arch/arm/plat-s3c24xx/dma.c b/trunk/arch/arm/plat-s3c24xx/dma.c index b07fec01ab47..aee2aeb46c60 100644 --- a/trunk/arch/arm/plat-s3c24xx/dma.c +++ b/trunk/arch/arm/plat-s3c24xx/dma.c @@ -31,10 +31,10 @@ #include #include #include + #include -#include -#include +#include /* io map for dma */ static void __iomem *dma_base; @@ -44,6 +44,8 @@ static int dma_channels; static struct s3c24xx_dma_selection dma_sel; +/* dma channel state information */ +struct s3c2410_dma_chan s3c2410_chans[S3C2410_DMA_CHANNELS]; /* debugging functions */ @@ -133,6 +135,21 @@ dmadbg_showregs(const char *fname, int line, struct s3c2410_dma_chan *chan) #define dbg_showchan(chan) do { } while(0) #endif /* CONFIG_S3C2410_DMA_DEBUG */ +static struct s3c2410_dma_chan *dma_chan_map[DMACH_MAX]; + +/* lookup_dma_channel + * + * change the dma channel number given into a real dma channel id +*/ + +static struct s3c2410_dma_chan *lookup_dma_channel(unsigned int channel) +{ + if (channel & DMACH_LOW_LEVEL) + return &s3c2410_chans[channel & ~DMACH_LOW_LEVEL]; + else + return dma_chan_map[channel]; +} + /* s3c2410_dma_stats_timeout * * Update DMA stats from timeout info @@ -197,6 +214,8 @@ s3c2410_dma_waitforload(struct s3c2410_dma_chan *chan, int line) return 0; } + + /* s3c2410_dma_loadbuffer * * load a buffer, and update the channel state @@ -434,7 +453,7 @@ s3c2410_dma_canload(struct s3c2410_dma_chan *chan) int s3c2410_dma_enqueue(unsigned int channel, void *id, dma_addr_t data, int size) { - struct s3c2410_dma_chan *chan = s3c_dma_lookup_channel(channel); + struct s3c2410_dma_chan *chan = lookup_dma_channel(channel); struct s3c2410_dma_buf *buf; unsigned long flags; @@ -785,7 +804,7 @@ EXPORT_SYMBOL(s3c2410_dma_request); int s3c2410_dma_free(unsigned int channel, struct s3c2410_dma_client *client) { - struct s3c2410_dma_chan *chan = s3c_dma_lookup_channel(channel); + struct s3c2410_dma_chan *chan = lookup_dma_channel(channel); unsigned long flags; if (chan == NULL) @@ -817,7 +836,7 @@ int s3c2410_dma_free(unsigned int channel, struct s3c2410_dma_client *client) chan->irq_claimed = 0; if (!(channel & DMACH_LOW_LEVEL)) - s3c_dma_chan_map[channel] = NULL; + dma_chan_map[channel] = NULL; local_irq_restore(flags); @@ -976,7 +995,7 @@ static int s3c2410_dma_started(struct s3c2410_dma_chan *chan) int s3c2410_dma_ctrl(unsigned int channel, enum s3c2410_chan_op op) { - struct s3c2410_dma_chan *chan = s3c_dma_lookup_channel(channel); + struct s3c2410_dma_chan *chan = lookup_dma_channel(channel); if (chan == NULL) return -EINVAL; @@ -1019,13 +1038,14 @@ EXPORT_SYMBOL(s3c2410_dma_ctrl); /* s3c2410_dma_config * * xfersize: size of unit in bytes (1,2,4) + * dcon: base value of the DCONx register */ int s3c2410_dma_config(unsigned int channel, - int xferunit) + int xferunit, + int dcon) { - struct s3c2410_dma_chan *chan = s3c_dma_lookup_channel(channel); - unsigned int dcon; + struct s3c2410_dma_chan *chan = lookup_dma_channel(channel); pr_debug("%s: chan=%d, xfer_unit=%d, dcon=%08x\n", __func__, channel, xferunit, dcon); @@ -1035,33 +1055,10 @@ int s3c2410_dma_config(unsigned int channel, pr_debug("%s: Initial dcon is %08x\n", __func__, dcon); - dcon = chan->dcon & dma_sel.dcon_mask; + dcon |= chan->dcon & dma_sel.dcon_mask; pr_debug("%s: New dcon is %08x\n", __func__, dcon); - switch (chan->req_ch) { - case DMACH_I2S_IN: - case DMACH_I2S_OUT: - case DMACH_PCM_IN: - case DMACH_PCM_OUT: - case DMACH_MIC_IN: - default: - dcon |= S3C2410_DCON_HANDSHAKE; - dcon |= S3C2410_DCON_SYNC_PCLK; - break; - - case DMACH_SDI: - /* note, ensure if need HANDSHAKE or not */ - dcon |= S3C2410_DCON_SYNC_PCLK; - break; - - case DMACH_XD0: - case DMACH_XD1: - dcon |= S3C2410_DCON_HANDSHAKE; - dcon |= S3C2410_DCON_SYNC_HCLK; - break; - } - switch (xferunit) { case 1: dcon |= S3C2410_DCON_BYTE; @@ -1093,6 +1090,58 @@ int s3c2410_dma_config(unsigned int channel, EXPORT_SYMBOL(s3c2410_dma_config); +int s3c2410_dma_setflags(unsigned int channel, unsigned int flags) +{ + struct s3c2410_dma_chan *chan = lookup_dma_channel(channel); + + if (chan == NULL) + return -EINVAL; + + pr_debug("%s: chan=%p, flags=%08x\n", __func__, chan, flags); + + chan->flags = flags; + + return 0; +} + +EXPORT_SYMBOL(s3c2410_dma_setflags); + + +/* do we need to protect the settings of the fields from + * irq? +*/ + +int s3c2410_dma_set_opfn(unsigned int channel, s3c2410_dma_opfn_t rtn) +{ + struct s3c2410_dma_chan *chan = lookup_dma_channel(channel); + + if (chan == NULL) + return -EINVAL; + + pr_debug("%s: chan=%p, op rtn=%p\n", __func__, chan, rtn); + + chan->op_fn = rtn; + + return 0; +} + +EXPORT_SYMBOL(s3c2410_dma_set_opfn); + +int s3c2410_dma_set_buffdone_fn(unsigned int channel, s3c2410_dma_cbfn_t rtn) +{ + struct s3c2410_dma_chan *chan = lookup_dma_channel(channel); + + if (chan == NULL) + return -EINVAL; + + pr_debug("%s: chan=%p, callback rtn=%p\n", __func__, chan, rtn); + + chan->callback_fn = rtn; + + return 0; +} + +EXPORT_SYMBOL(s3c2410_dma_set_buffdone_fn); /* s3c2410_dma_devconfig * @@ -1101,38 +1150,29 @@ EXPORT_SYMBOL(s3c2410_dma_config); * source: S3C2410_DMASRC_HW: source is hardware * S3C2410_DMASRC_MEM: source is memory * + * hwcfg: the value for xxxSTCn register, + * bit 0: 0=increment pointer, 1=leave pointer + * bit 1: 0=source is AHB, 1=source is APB + * * devaddr: physical address of the source */ int s3c2410_dma_devconfig(int channel, enum s3c2410_dmasrc source, + int hwcfg, unsigned long devaddr) { - struct s3c2410_dma_chan *chan = s3c_dma_lookup_channel(channel); - unsigned int hwcfg; + struct s3c2410_dma_chan *chan = lookup_dma_channel(channel); if (chan == NULL) return -EINVAL; - pr_debug("%s: source=%d, devaddr=%08lx\n", - __func__, (int)source, devaddr); + pr_debug("%s: source=%d, hwcfg=%08x, devaddr=%08lx\n", + __func__, (int)source, hwcfg, devaddr); chan->source = source; chan->dev_addr = devaddr; - - switch (chan->req_ch) { - case DMACH_XD0: - case DMACH_XD1: - hwcfg = 0; /* AHB */ - break; - - default: - hwcfg = S3C2410_DISRCC_APB; - } - - /* always assume our peripheral desintation is a fixed - * address in memory. */ - hwcfg |= S3C2410_DISRCC_INC; + chan->hw_cfg = hwcfg; switch (source) { case S3C2410_DMASRC_HW: @@ -1179,7 +1219,7 @@ EXPORT_SYMBOL(s3c2410_dma_devconfig); int s3c2410_dma_getposition(unsigned int channel, dma_addr_t *src, dma_addr_t *dst) { - struct s3c2410_dma_chan *chan = s3c_dma_lookup_channel(channel); + struct s3c2410_dma_chan *chan = lookup_dma_channel(channel); if (chan == NULL) return -EINVAL; @@ -1238,8 +1278,8 @@ static int s3c2410_dma_resume(struct sys_device *dev) printk(KERN_INFO "dma%d: restoring configuration\n", cp->number); - s3c2410_dma_config(no, cp->xfer_unit); - s3c2410_dma_devconfig(no, cp->source, cp->dev_addr); + s3c2410_dma_config(no, cp->xfer_unit, cp->dcon); + s3c2410_dma_devconfig(no, cp->source, cp->hw_cfg, cp->dev_addr); /* re-select the dma source for this channel */ @@ -1436,8 +1476,7 @@ static struct s3c2410_dma_chan *s3c2410_dma_map_channel(int channel) found: dmach = &s3c2410_chans[ch]; dmach->map = ch_map; - dmach->req_ch = channel; - s3c_dma_chan_map[channel] = dmach; + dma_chan_map[channel] = dmach; /* select the channel */ diff --git a/trunk/arch/arm/plat-s3c24xx/gpio.c b/trunk/arch/arm/plat-s3c24xx/gpio.c index 4a899c279eb5..65ebbaff7d50 100644 --- a/trunk/arch/arm/plat-s3c24xx/gpio.c +++ b/trunk/arch/arm/plat-s3c24xx/gpio.c @@ -199,19 +199,3 @@ int s3c2410_gpio_getirq(unsigned int pin) } EXPORT_SYMBOL(s3c2410_gpio_getirq); - -int s3c2410_gpio_irq2pin(unsigned int irq) -{ - if (irq >= IRQ_EINT0 && irq <= IRQ_EINT3) - return S3C2410_GPF0 + (irq - IRQ_EINT0); - - if (irq >= IRQ_EINT4 && irq <= IRQ_EINT7) - return S3C2410_GPF4 + (irq - IRQ_EINT4); - - if (irq >= IRQ_EINT8 && irq <= IRQ_EINT23) - return S3C2410_GPG0 + (irq - IRQ_EINT8); - - return -EINVAL; -} - -EXPORT_SYMBOL(s3c2410_gpio_irq2pin); diff --git a/trunk/arch/arm/plat-s3c24xx/include/plat/dma-plat.h b/trunk/arch/arm/plat-s3c24xx/include/plat/dma.h similarity index 86% rename from trunk/arch/arm/plat-s3c24xx/include/plat/dma-plat.h rename to trunk/arch/arm/plat-s3c24xx/include/plat/dma.h index 9565ead1bc9b..c78efe316fc8 100644 --- a/trunk/arch/arm/plat-s3c24xx/include/plat/dma-plat.h +++ b/trunk/arch/arm/plat-s3c24xx/include/plat/dma.h @@ -1,4 +1,4 @@ -/* linux/arch/arm/plat-s3c24xx/include/plat/dma-plat.h +/* linux/include/asm-arm/plat-s3c24xx/dma.h * * Copyright (C) 2006 Simtec Electronics * Ben Dooks @@ -10,10 +10,8 @@ * published by the Free Software Foundation. */ -#include - extern struct sysdev_class dma_sysclass; -extern struct s3c2410_dma_chan s3c2410_chans[S3C_DMA_CHANNELS]; +extern struct s3c2410_dma_chan s3c2410_chans[S3C2410_DMA_CHANNELS]; #define DMA_CH_VALID (1<<31) #define DMA_CH_NEVER (1<<30) @@ -33,8 +31,8 @@ struct s3c24xx_dma_map { const char *name; struct s3c24xx_dma_addr hw_addr; - unsigned long channels[S3C_DMA_CHANNELS]; - unsigned long channels_rx[S3C_DMA_CHANNELS]; + unsigned long channels[S3C2410_DMA_CHANNELS]; + unsigned long channels_rx[S3C2410_DMA_CHANNELS]; }; struct s3c24xx_dma_selection { @@ -60,7 +58,7 @@ extern int s3c24xx_dma_init_map(struct s3c24xx_dma_selection *sel); */ struct s3c24xx_dma_order_ch { - unsigned int list[S3C_DMA_CHANNELS]; /* list of channels */ + unsigned int list[S3C2410_DMA_CHANNELS]; /* list of channels */ unsigned int flags; /* flags */ }; diff --git a/trunk/arch/arm/plat-s3c24xx/include/plat/regs-dma.h b/trunk/arch/arm/plat-s3c24xx/include/plat/regs-dma.h deleted file mode 100644 index 3bc0a216df97..000000000000 --- a/trunk/arch/arm/plat-s3c24xx/include/plat/regs-dma.h +++ /dev/null @@ -1,145 +0,0 @@ -/* arch/arm/mach-s3c2410/include/mach/dma.h - * - * Copyright (C) 2003,2004,2006 Simtec Electronics - * Ben Dooks - * - * Samsung S3C24XX DMA support - * - * 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. -*/ - -/* DMA Register definitions */ - -#define S3C2410_DMA_DISRC (0x00) -#define S3C2410_DMA_DISRCC (0x04) -#define S3C2410_DMA_DIDST (0x08) -#define S3C2410_DMA_DIDSTC (0x0C) -#define S3C2410_DMA_DCON (0x10) -#define S3C2410_DMA_DSTAT (0x14) -#define S3C2410_DMA_DCSRC (0x18) -#define S3C2410_DMA_DCDST (0x1C) -#define S3C2410_DMA_DMASKTRIG (0x20) -#define S3C2412_DMA_DMAREQSEL (0x24) -#define S3C2443_DMA_DMAREQSEL (0x24) - -#define S3C2410_DISRCC_INC (1<<0) -#define S3C2410_DISRCC_APB (1<<1) - -#define S3C2410_DMASKTRIG_STOP (1<<2) -#define S3C2410_DMASKTRIG_ON (1<<1) -#define S3C2410_DMASKTRIG_SWTRIG (1<<0) - -#define S3C2410_DCON_DEMAND (0<<31) -#define S3C2410_DCON_HANDSHAKE (1<<31) -#define S3C2410_DCON_SYNC_PCLK (0<<30) -#define S3C2410_DCON_SYNC_HCLK (1<<30) - -#define S3C2410_DCON_INTREQ (1<<29) - -#define S3C2410_DCON_CH0_XDREQ0 (0<<24) -#define S3C2410_DCON_CH0_UART0 (1<<24) -#define S3C2410_DCON_CH0_SDI (2<<24) -#define S3C2410_DCON_CH0_TIMER (3<<24) -#define S3C2410_DCON_CH0_USBEP1 (4<<24) - -#define S3C2410_DCON_CH1_XDREQ1 (0<<24) -#define S3C2410_DCON_CH1_UART1 (1<<24) -#define S3C2410_DCON_CH1_I2SSDI (2<<24) -#define S3C2410_DCON_CH1_SPI (3<<24) -#define S3C2410_DCON_CH1_USBEP2 (4<<24) - -#define S3C2410_DCON_CH2_I2SSDO (0<<24) -#define S3C2410_DCON_CH2_I2SSDI (1<<24) -#define S3C2410_DCON_CH2_SDI (2<<24) -#define S3C2410_DCON_CH2_TIMER (3<<24) -#define S3C2410_DCON_CH2_USBEP3 (4<<24) - -#define S3C2410_DCON_CH3_UART2 (0<<24) -#define S3C2410_DCON_CH3_SDI (1<<24) -#define S3C2410_DCON_CH3_SPI (2<<24) -#define S3C2410_DCON_CH3_TIMER (3<<24) -#define S3C2410_DCON_CH3_USBEP4 (4<<24) - -#define S3C2410_DCON_SRCSHIFT (24) -#define S3C2410_DCON_SRCMASK (7<<24) - -#define S3C2410_DCON_BYTE (0<<20) -#define S3C2410_DCON_HALFWORD (1<<20) -#define S3C2410_DCON_WORD (2<<20) - -#define S3C2410_DCON_AUTORELOAD (0<<22) -#define S3C2410_DCON_NORELOAD (1<<22) -#define S3C2410_DCON_HWTRIG (1<<23) - -#ifdef CONFIG_CPU_S3C2440 -#define S3C2440_DIDSTC_CHKINT (1<<2) - -#define S3C2440_DCON_CH0_I2SSDO (5<<24) -#define S3C2440_DCON_CH0_PCMIN (6<<24) - -#define S3C2440_DCON_CH1_PCMOUT (5<<24) -#define S3C2440_DCON_CH1_SDI (6<<24) - -#define S3C2440_DCON_CH2_PCMIN (5<<24) -#define S3C2440_DCON_CH2_MICIN (6<<24) - -#define S3C2440_DCON_CH3_MICIN (5<<24) -#define S3C2440_DCON_CH3_PCMOUT (6<<24) -#endif - -#ifdef CONFIG_CPU_S3C2412 - -#define S3C2412_DMAREQSEL_SRC(x) ((x)<<1) - -#define S3C2412_DMAREQSEL_HW (1) - -#define S3C2412_DMAREQSEL_SPI0TX S3C2412_DMAREQSEL_SRC(0) -#define S3C2412_DMAREQSEL_SPI0RX S3C2412_DMAREQSEL_SRC(1) -#define S3C2412_DMAREQSEL_SPI1TX S3C2412_DMAREQSEL_SRC(2) -#define S3C2412_DMAREQSEL_SPI1RX S3C2412_DMAREQSEL_SRC(3) -#define S3C2412_DMAREQSEL_I2STX S3C2412_DMAREQSEL_SRC(4) -#define S3C2412_DMAREQSEL_I2SRX S3C2412_DMAREQSEL_SRC(5) -#define S3C2412_DMAREQSEL_TIMER S3C2412_DMAREQSEL_SRC(9) -#define S3C2412_DMAREQSEL_SDI S3C2412_DMAREQSEL_SRC(10) -#define S3C2412_DMAREQSEL_USBEP1 S3C2412_DMAREQSEL_SRC(13) -#define S3C2412_DMAREQSEL_USBEP2 S3C2412_DMAREQSEL_SRC(14) -#define S3C2412_DMAREQSEL_USBEP3 S3C2412_DMAREQSEL_SRC(15) -#define S3C2412_DMAREQSEL_USBEP4 S3C2412_DMAREQSEL_SRC(16) -#define S3C2412_DMAREQSEL_XDREQ0 S3C2412_DMAREQSEL_SRC(17) -#define S3C2412_DMAREQSEL_XDREQ1 S3C2412_DMAREQSEL_SRC(18) -#define S3C2412_DMAREQSEL_UART0_0 S3C2412_DMAREQSEL_SRC(19) -#define S3C2412_DMAREQSEL_UART0_1 S3C2412_DMAREQSEL_SRC(20) -#define S3C2412_DMAREQSEL_UART1_0 S3C2412_DMAREQSEL_SRC(21) -#define S3C2412_DMAREQSEL_UART1_1 S3C2412_DMAREQSEL_SRC(22) -#define S3C2412_DMAREQSEL_UART2_0 S3C2412_DMAREQSEL_SRC(23) -#define S3C2412_DMAREQSEL_UART2_1 S3C2412_DMAREQSEL_SRC(24) - -#endif - -#define S3C2443_DMAREQSEL_SRC(x) ((x)<<1) - -#define S3C2443_DMAREQSEL_HW (1) - -#define S3C2443_DMAREQSEL_SPI0TX S3C2443_DMAREQSEL_SRC(0) -#define S3C2443_DMAREQSEL_SPI0RX S3C2443_DMAREQSEL_SRC(1) -#define S3C2443_DMAREQSEL_SPI1TX S3C2443_DMAREQSEL_SRC(2) -#define S3C2443_DMAREQSEL_SPI1RX S3C2443_DMAREQSEL_SRC(3) -#define S3C2443_DMAREQSEL_I2STX S3C2443_DMAREQSEL_SRC(4) -#define S3C2443_DMAREQSEL_I2SRX S3C2443_DMAREQSEL_SRC(5) -#define S3C2443_DMAREQSEL_TIMER S3C2443_DMAREQSEL_SRC(9) -#define S3C2443_DMAREQSEL_SDI S3C2443_DMAREQSEL_SRC(10) -#define S3C2443_DMAREQSEL_XDREQ0 S3C2443_DMAREQSEL_SRC(17) -#define S3C2443_DMAREQSEL_XDREQ1 S3C2443_DMAREQSEL_SRC(18) -#define S3C2443_DMAREQSEL_UART0_0 S3C2443_DMAREQSEL_SRC(19) -#define S3C2443_DMAREQSEL_UART0_1 S3C2443_DMAREQSEL_SRC(20) -#define S3C2443_DMAREQSEL_UART1_0 S3C2443_DMAREQSEL_SRC(21) -#define S3C2443_DMAREQSEL_UART1_1 S3C2443_DMAREQSEL_SRC(22) -#define S3C2443_DMAREQSEL_UART2_0 S3C2443_DMAREQSEL_SRC(23) -#define S3C2443_DMAREQSEL_UART2_1 S3C2443_DMAREQSEL_SRC(24) -#define S3C2443_DMAREQSEL_UART3_0 S3C2443_DMAREQSEL_SRC(25) -#define S3C2443_DMAREQSEL_UART3_1 S3C2443_DMAREQSEL_SRC(26) -#define S3C2443_DMAREQSEL_PCMOUT S3C2443_DMAREQSEL_SRC(27) -#define S3C2443_DMAREQSEL_PCMIN S3C2443_DMAREQSEL_SRC(28) -#define S3C2443_DMAREQSEL_MICIN S3C2443_DMAREQSEL_SRC(29) diff --git a/trunk/arch/arm/plat-s3c64xx/Kconfig b/trunk/arch/arm/plat-s3c64xx/Kconfig index 5ebd8b425a54..eb088db0e650 100644 --- a/trunk/arch/arm/plat-s3c64xx/Kconfig +++ b/trunk/arch/arm/plat-s3c64xx/Kconfig @@ -39,10 +39,6 @@ config CPU_S3C6400_CLOCK Common clock support code for the S3C6400 that is shared by other CPUs in the series, such as the S3C6410. -config S3C64XX_DMA - bool "S3C64XX DMA" - select S3C_DMA - # platform specific device setup config S3C64XX_SETUP_I2C0 diff --git a/trunk/arch/arm/plat-s3c64xx/Makefile b/trunk/arch/arm/plat-s3c64xx/Makefile index 2ed5df34f9ea..030050f5c76d 100644 --- a/trunk/arch/arm/plat-s3c64xx/Makefile +++ b/trunk/arch/arm/plat-s3c64xx/Makefile @@ -30,10 +30,6 @@ obj-$(CONFIG_PM) += pm.o obj-$(CONFIG_PM) += sleep.o obj-$(CONFIG_PM) += irq-pm.o -# DMA support - -obj-$(CONFIG_S3C64XX_DMA) += dma.o - # Device setup obj-$(CONFIG_S3C64XX_SETUP_I2C0) += setup-i2c0.o diff --git a/trunk/arch/arm/plat-s3c64xx/cpu.c b/trunk/arch/arm/plat-s3c64xx/cpu.c index b1fdd83940a6..19f68b5f0d36 100644 --- a/trunk/arch/arm/plat-s3c64xx/cpu.c +++ b/trunk/arch/arm/plat-s3c64xx/cpu.c @@ -102,11 +102,6 @@ static struct map_desc s3c_iodesc[] __initdata = { .pfn = __phys_to_pfn(S3C64XX_PA_MODEM), .length = SZ_4K, .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S3C_VA_WATCHDOG, - .pfn = __phys_to_pfn(S3C64XX_PA_WATCHDOG), - .length = SZ_4K, - .type = MT_DEVICE, }, }; diff --git a/trunk/arch/arm/plat-s3c64xx/dma.c b/trunk/arch/arm/plat-s3c64xx/dma.c deleted file mode 100644 index 67aa93dbb69e..000000000000 --- a/trunk/arch/arm/plat-s3c64xx/dma.c +++ /dev/null @@ -1,722 +0,0 @@ -/* linux/arch/arm/plat-s3c64xx/dma.c - * - * Copyright 2009 Openmoko, Inc. - * Copyright 2009 Simtec Electronics - * Ben Dooks - * http://armlinux.simtec.co.uk/ - * - * S3C64XX DMA core - * - * 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. -*/ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include - -#include -#include - -#include - -/* dma channel state information */ - -struct s3c64xx_dmac { - struct sys_device sysdev; - struct clk *clk; - void __iomem *regs; - struct s3c2410_dma_chan *channels; - enum dma_ch chanbase; -}; - -/* pool to provide LLI buffers */ -static struct dma_pool *dma_pool; - -/* Debug configuration and code */ - -static unsigned char debug_show_buffs = 0; - -static void dbg_showchan(struct s3c2410_dma_chan *chan) -{ - pr_debug("DMA%d: %08x->%08x L %08x C %08x,%08x S %08x\n", - chan->number, - readl(chan->regs + PL080_CH_SRC_ADDR), - readl(chan->regs + PL080_CH_DST_ADDR), - readl(chan->regs + PL080_CH_LLI), - readl(chan->regs + PL080_CH_CONTROL), - readl(chan->regs + PL080S_CH_CONTROL2), - readl(chan->regs + PL080S_CH_CONFIG)); -} - -static void show_lli(struct pl080s_lli *lli) -{ - pr_debug("LLI[%p] %08x->%08x, NL %08x C %08x,%08x\n", - lli, lli->src_addr, lli->dst_addr, lli->next_lli, - lli->control0, lli->control1); -} - -static void dbg_showbuffs(struct s3c2410_dma_chan *chan) -{ - struct s3c64xx_dma_buff *ptr; - struct s3c64xx_dma_buff *end; - - pr_debug("DMA%d: buffs next %p, curr %p, end %p\n", - chan->number, chan->next, chan->curr, chan->end); - - ptr = chan->next; - end = chan->end; - - if (debug_show_buffs) { - for (; ptr != NULL; ptr = ptr->next) { - pr_debug("DMA%d: %08x ", - chan->number, ptr->lli_dma); - show_lli(ptr->lli); - } - } -} - -/* End of Debug */ - -static struct s3c2410_dma_chan *s3c64xx_dma_map_channel(unsigned int channel) -{ - struct s3c2410_dma_chan *chan; - unsigned int start, offs; - - start = 0; - - if (channel >= DMACH_PCM1_TX) - start = 8; - - for (offs = 0; offs < 8; offs++) { - chan = &s3c2410_chans[start + offs]; - if (!chan->in_use) - goto found; - } - - return NULL; - -found: - s3c_dma_chan_map[channel] = chan; - return chan; -} - -int s3c2410_dma_config(unsigned int channel, int xferunit) -{ - struct s3c2410_dma_chan *chan = s3c_dma_lookup_channel(channel); - - if (chan == NULL) - return -EINVAL; - - switch (xferunit) { - case 1: - chan->hw_width = 0; - break; - case 2: - chan->hw_width = 1; - break; - case 4: - chan->hw_width = 2; - break; - default: - printk(KERN_ERR "%s: illegal width %d\n", __func__, xferunit); - return -EINVAL; - } - - return 0; -} -EXPORT_SYMBOL(s3c2410_dma_config); - -static void s3c64xx_dma_fill_lli(struct s3c2410_dma_chan *chan, - struct pl080s_lli *lli, - dma_addr_t data, int size) -{ - dma_addr_t src, dst; - u32 control0, control1; - - switch (chan->source) { - case S3C2410_DMASRC_HW: - src = chan->dev_addr; - dst = data; - control0 = PL080_CONTROL_SRC_AHB2; - control0 |= (u32)chan->hw_width << PL080_CONTROL_SWIDTH_SHIFT; - control0 |= 2 << PL080_CONTROL_DWIDTH_SHIFT; - control0 |= PL080_CONTROL_DST_INCR; - break; - - case S3C2410_DMASRC_MEM: - src = data; - dst = chan->dev_addr; - control0 = PL080_CONTROL_DST_AHB2; - control0 |= (u32)chan->hw_width << PL080_CONTROL_DWIDTH_SHIFT; - control0 |= 2 << PL080_CONTROL_SWIDTH_SHIFT; - control0 |= PL080_CONTROL_SRC_INCR; - break; - default: - BUG(); - } - - /* note, we do not currently setup any of the burst controls */ - - control1 = size >> chan->hw_width; /* size in no of xfers */ - control0 |= PL080_CONTROL_PROT_SYS; /* always in priv. mode */ - control0 |= PL080_CONTROL_TC_IRQ_EN; /* always fire IRQ */ - - lli->src_addr = src; - lli->dst_addr = dst; - lli->next_lli = 0; - lli->control0 = control0; - lli->control1 = control1; -} - -static void s3c64xx_lli_to_regs(struct s3c2410_dma_chan *chan, - struct pl080s_lli *lli) -{ - void __iomem *regs = chan->regs; - - pr_debug("%s: LLI %p => regs\n", __func__, lli); - show_lli(lli); - - writel(lli->src_addr, regs + PL080_CH_SRC_ADDR); - writel(lli->dst_addr, regs + PL080_CH_DST_ADDR); - writel(lli->next_lli, regs + PL080_CH_LLI); - writel(lli->control0, regs + PL080_CH_CONTROL); - writel(lli->control1, regs + PL080S_CH_CONTROL2); -} - -static int s3c64xx_dma_start(struct s3c2410_dma_chan *chan) -{ - struct s3c64xx_dmac *dmac = chan->dmac; - u32 config; - u32 bit = chan->bit; - - dbg_showchan(chan); - - pr_debug("%s: clearing interrupts\n", __func__); - - /* clear interrupts */ - writel(bit, dmac->regs + PL080_TC_CLEAR); - writel(bit, dmac->regs + PL080_ERR_CLEAR); - - pr_debug("%s: starting channel\n", __func__); - - config = readl(chan->regs + PL080S_CH_CONFIG); - config |= PL080_CONFIG_ENABLE; - - pr_debug("%s: writing config %08x\n", __func__, config); - writel(config, chan->regs + PL080S_CH_CONFIG); - - return 0; -} - -static int s3c64xx_dma_stop(struct s3c2410_dma_chan *chan) -{ - u32 config; - int timeout; - - pr_debug("%s: stopping channel\n", __func__); - - dbg_showchan(chan); - - config = readl(chan->regs + PL080S_CH_CONFIG); - config |= PL080_CONFIG_HALT; - writel(config, chan->regs + PL080S_CH_CONFIG); - - timeout = 1000; - do { - config = readl(chan->regs + PL080S_CH_CONFIG); - pr_debug("%s: %d - config %08x\n", __func__, timeout, config); - if (config & PL080_CONFIG_ACTIVE) - udelay(10); - else - break; - } while (--timeout > 0); - - if (config & PL080_CONFIG_ACTIVE) { - printk(KERN_ERR "%s: channel still active\n", __func__); - return -EFAULT; - } - - config = readl(chan->regs + PL080S_CH_CONFIG); - config &= ~PL080_CONFIG_ENABLE; - writel(config, chan->regs + PL080S_CH_CONFIG); - - return 0; -} - -static inline void s3c64xx_dma_bufffdone(struct s3c2410_dma_chan *chan, - struct s3c64xx_dma_buff *buf, - enum s3c2410_dma_buffresult result) -{ - if (chan->callback_fn != NULL) - (chan->callback_fn)(chan, buf->pw, 0, result); -} - -static void s3c64xx_dma_freebuff(struct s3c64xx_dma_buff *buff) -{ - dma_pool_free(dma_pool, buff->lli, buff->lli_dma); - kfree(buff); -} - -static int s3c64xx_dma_flush(struct s3c2410_dma_chan *chan) -{ - struct s3c64xx_dma_buff *buff, *next; - u32 config; - - dbg_showchan(chan); - - pr_debug("%s: flushing channel\n", __func__); - - config = readl(chan->regs + PL080S_CH_CONFIG); - config &= ~PL080_CONFIG_ENABLE; - writel(config, chan->regs + PL080S_CH_CONFIG); - - /* dump all the buffers associated with this channel */ - - for (buff = chan->curr; buff != NULL; buff = next) { - next = buff->next; - pr_debug("%s: buff %p (next %p)\n", __func__, buff, buff->next); - - s3c64xx_dma_bufffdone(chan, buff, S3C2410_RES_ABORT); - s3c64xx_dma_freebuff(buff); - } - - chan->curr = chan->next = chan->end = NULL; - - return 0; -} - -int s3c2410_dma_ctrl(unsigned int channel, enum s3c2410_chan_op op) -{ - struct s3c2410_dma_chan *chan = s3c_dma_lookup_channel(channel); - - WARN_ON(!chan); - if (!chan) - return -EINVAL; - - switch (op) { - case S3C2410_DMAOP_START: - return s3c64xx_dma_start(chan); - - case S3C2410_DMAOP_STOP: - return s3c64xx_dma_stop(chan); - - case S3C2410_DMAOP_FLUSH: - return s3c64xx_dma_flush(chan); - - /* belive PAUSE/RESUME are no-ops */ - case S3C2410_DMAOP_PAUSE: - case S3C2410_DMAOP_RESUME: - case S3C2410_DMAOP_STARTED: - case S3C2410_DMAOP_TIMEOUT: - return 0; - } - - return -ENOENT; -} -EXPORT_SYMBOL(s3c2410_dma_ctrl); - -/* s3c2410_dma_enque - * - */ - -int s3c2410_dma_enqueue(unsigned int channel, void *id, - dma_addr_t data, int size) -{ - struct s3c2410_dma_chan *chan = s3c_dma_lookup_channel(channel); - struct s3c64xx_dma_buff *next; - struct s3c64xx_dma_buff *buff; - struct pl080s_lli *lli; - int ret; - - WARN_ON(!chan); - if (!chan) - return -EINVAL; - - buff = kzalloc(sizeof(struct s3c64xx_dma_buff), GFP_KERNEL); - if (!buff) { - printk(KERN_ERR "%s: no memory for buffer\n", __func__); - return -ENOMEM; - } - - lli = dma_pool_alloc(dma_pool, GFP_KERNEL, &buff->lli_dma); - if (!lli) { - printk(KERN_ERR "%s: no memory for lli\n", __func__); - ret = -ENOMEM; - goto err_buff; - } - - pr_debug("%s: buff %p, dp %08x lli (%p, %08x) %d\n", - __func__, buff, data, lli, (u32)buff->lli_dma, size); - - buff->lli = lli; - buff->pw = id; - - s3c64xx_dma_fill_lli(chan, lli, data, size); - - if ((next = chan->next) != NULL) { - struct s3c64xx_dma_buff *end = chan->end; - struct pl080s_lli *endlli = end->lli; - - pr_debug("enquing onto channel\n"); - - end->next = buff; - endlli->next_lli = buff->lli_dma; - - if (chan->flags & S3C2410_DMAF_CIRCULAR) { - struct s3c64xx_dma_buff *curr = chan->curr; - lli->next_lli = curr->lli_dma; - } - - if (next == chan->curr) { - writel(buff->lli_dma, chan->regs + PL080_CH_LLI); - chan->next = buff; - } - - show_lli(endlli); - chan->end = buff; - } else { - pr_debug("enquing onto empty channel\n"); - - chan->curr = buff; - chan->next = buff; - chan->end = buff; - - s3c64xx_lli_to_regs(chan, lli); - } - - show_lli(lli); - - dbg_showchan(chan); - dbg_showbuffs(chan); - return 0; - -err_buff: - kfree(buff); - return ret; -} - -EXPORT_SYMBOL(s3c2410_dma_enqueue); - - -int s3c2410_dma_devconfig(int channel, - enum s3c2410_dmasrc source, - unsigned long devaddr) -{ - struct s3c2410_dma_chan *chan = s3c_dma_lookup_channel(channel); - u32 peripheral; - u32 config = 0; - - pr_debug("%s: channel %d, source %d, dev %08lx, chan %p\n", - __func__, channel, source, devaddr, chan); - - WARN_ON(!chan); - if (!chan) - return -EINVAL; - - peripheral = (chan->peripheral & 0xf); - chan->source = source; - chan->dev_addr = devaddr; - - pr_debug("%s: peripheral %d\n", __func__, peripheral); - - switch (source) { - case S3C2410_DMASRC_HW: - config = 2 << PL080_CONFIG_FLOW_CONTROL_SHIFT; - config |= peripheral << PL080_CONFIG_SRC_SEL_SHIFT; - break; - case S3C2410_DMASRC_MEM: - config = 1 << PL080_CONFIG_FLOW_CONTROL_SHIFT; - config |= peripheral << PL080_CONFIG_DST_SEL_SHIFT; - break; - default: - printk(KERN_ERR "%s: bad source\n", __func__); - return -EINVAL; - } - - /* allow TC and ERR interrupts */ - config |= PL080_CONFIG_TC_IRQ_MASK; - config |= PL080_CONFIG_ERR_IRQ_MASK; - - pr_debug("%s: config %08x\n", __func__, config); - - writel(config, chan->regs + PL080S_CH_CONFIG); - - return 0; -} -EXPORT_SYMBOL(s3c2410_dma_devconfig); - - -int s3c2410_dma_getposition(unsigned int channel, - dma_addr_t *src, dma_addr_t *dst) -{ - struct s3c2410_dma_chan *chan = s3c_dma_lookup_channel(channel); - - WARN_ON(!chan); - if (!chan) - return -EINVAL; - - if (src != NULL) - *src = readl(chan->regs + PL080_CH_SRC_ADDR); - - if (dst != NULL) - *dst = readl(chan->regs + PL080_CH_DST_ADDR); - - return 0; -} -EXPORT_SYMBOL(s3c2410_dma_getposition); - -/* s3c2410_request_dma - * - * get control of an dma channel -*/ - -int s3c2410_dma_request(unsigned int channel, - struct s3c2410_dma_client *client, - void *dev) -{ - struct s3c2410_dma_chan *chan; - unsigned long flags; - - pr_debug("dma%d: s3c2410_request_dma: client=%s, dev=%p\n", - channel, client->name, dev); - - local_irq_save(flags); - - chan = s3c64xx_dma_map_channel(channel); - if (chan == NULL) { - local_irq_restore(flags); - return -EBUSY; - } - - dbg_showchan(chan); - - chan->client = client; - chan->in_use = 1; - chan->peripheral = channel; - - local_irq_restore(flags); - - /* need to setup */ - - pr_debug("%s: channel initialised, %p\n", __func__, chan); - - return chan->number | DMACH_LOW_LEVEL; -} - -EXPORT_SYMBOL(s3c2410_dma_request); - -/* s3c2410_dma_free - * - * release the given channel back to the system, will stop and flush - * any outstanding transfers, and ensure the channel is ready for the - * next claimant. - * - * Note, although a warning is currently printed if the freeing client - * info is not the same as the registrant's client info, the free is still - * allowed to go through. -*/ - -int s3c2410_dma_free(unsigned int channel, struct s3c2410_dma_client *client) -{ - struct s3c2410_dma_chan *chan = s3c_dma_lookup_channel(channel); - unsigned long flags; - - if (chan == NULL) - return -EINVAL; - - local_irq_save(flags); - - if (chan->client != client) { - printk(KERN_WARNING "dma%d: possible free from different client (channel %p, passed %p)\n", - channel, chan->client, client); - } - - /* sort out stopping and freeing the channel */ - - - chan->client = NULL; - chan->in_use = 0; - - if (!(channel & DMACH_LOW_LEVEL)) - s3c_dma_chan_map[channel] = NULL; - - local_irq_restore(flags); - - return 0; -} - -EXPORT_SYMBOL(s3c2410_dma_free); - - -static void s3c64xx_dma_tcirq(struct s3c64xx_dmac *dmac, int offs) -{ - struct s3c2410_dma_chan *chan = dmac->channels + offs; - - /* note, we currently do not bother to work out which buffer - * or buffers have been completed since the last tc-irq. */ - - if (chan->callback_fn) - (chan->callback_fn)(chan, chan->curr->pw, 0, S3C2410_RES_OK); -} - -static void s3c64xx_dma_errirq(struct s3c64xx_dmac *dmac, int offs) -{ - printk(KERN_DEBUG "%s: offs %d\n", __func__, offs); -} - -static irqreturn_t s3c64xx_dma_irq(int irq, void *pw) -{ - struct s3c64xx_dmac *dmac = pw; - u32 tcstat, errstat; - u32 bit; - int offs; - - tcstat = readl(dmac->regs + PL080_TC_STATUS); - errstat = readl(dmac->regs + PL080_ERR_STATUS); - - for (offs = 0, bit = 1; offs < 8; offs++, bit <<= 1) { - if (tcstat & bit) { - writel(bit, dmac->regs + PL080_TC_CLEAR); - s3c64xx_dma_tcirq(dmac, offs); - } - - if (errstat & bit) { - s3c64xx_dma_errirq(dmac, offs); - writel(bit, dmac->regs + PL080_ERR_CLEAR); - } - } - - return IRQ_HANDLED; -} - -static struct sysdev_class dma_sysclass = { - .name = "s3c64xx-dma", -}; - -static int s3c64xx_dma_init1(int chno, enum dma_ch chbase, - int irq, unsigned int base) -{ - struct s3c2410_dma_chan *chptr = &s3c2410_chans[chno]; - struct s3c64xx_dmac *dmac; - char clkname[16]; - void __iomem *regs; - void __iomem *regptr; - int err, ch; - - dmac = kzalloc(sizeof(struct s3c64xx_dmac), GFP_KERNEL); - if (!dmac) { - printk(KERN_ERR "%s: failed to alloc mem\n", __func__); - return -ENOMEM; - } - - dmac->sysdev.id = chno / 8; - dmac->sysdev.cls = &dma_sysclass; - - err = sysdev_register(&dmac->sysdev); - if (err) { - printk(KERN_ERR "%s: failed to register sysdevice\n", __func__); - goto err_alloc; - } - - regs = ioremap(base, 0x200); - if (!regs) { - printk(KERN_ERR "%s: failed to ioremap()\n", __func__); - err = -ENXIO; - goto err_dev; - } - - snprintf(clkname, sizeof(clkname), "dma%d", dmac->sysdev.id); - - dmac->clk = clk_get(NULL, clkname); - if (IS_ERR(dmac->clk)) { - printk(KERN_ERR "%s: failed to get clock %s\n", __func__, clkname); - err = PTR_ERR(dmac->clk); - goto err_map; - } - - clk_enable(dmac->clk); - - dmac->regs = regs; - dmac->chanbase = chbase; - dmac->channels = chptr; - - err = request_irq(irq, s3c64xx_dma_irq, 0, "DMA", dmac); - if (err < 0) { - printk(KERN_ERR "%s: failed to get irq\n", __func__); - goto err_clk; - } - - regptr = regs + PL080_Cx_BASE(0); - - for (ch = 0; ch < 8; ch++, chno++, chptr++) { - printk(KERN_INFO "%s: registering DMA %d (%p)\n", - __func__, chno, regptr); - - chptr->bit = 1 << ch; - chptr->number = chno; - chptr->dmac = dmac; - chptr->regs = regptr; - regptr += PL008_Cx_STRIDE; - } - - /* for the moment, permanently enable the controller */ - writel(PL080_CONFIG_ENABLE, regs + PL080_CONFIG); - - printk(KERN_INFO "PL080: IRQ %d, at %p\n", irq, regs); - - return 0; - -err_clk: - clk_disable(dmac->clk); - clk_put(dmac->clk); -err_map: - iounmap(regs); -err_dev: - sysdev_unregister(&dmac->sysdev); -err_alloc: - kfree(dmac); - return err; -} - -static int __init s3c64xx_dma_init(void) -{ - int ret; - - printk(KERN_INFO "%s: Registering DMA channels\n", __func__); - - dma_pool = dma_pool_create("DMA-LLI", NULL, 32, 16, 0); - if (!dma_pool) { - printk(KERN_ERR "%s: failed to create pool\n", __func__); - return -ENOMEM; - } - - ret = sysdev_class_register(&dma_sysclass); - if (ret) { - printk(KERN_ERR "%s: failed to create sysclass\n", __func__); - return -ENOMEM; - } - - /* Set all DMA configuration to be DMA, not SDMA */ - writel(0xffffff, S3C_SYSREG(0x110)); - - /* Register standard DMA controlers */ - s3c64xx_dma_init1(0, DMACH_UART0, IRQ_DMA0, 0x75000000); - s3c64xx_dma_init1(8, DMACH_PCM1_TX, IRQ_DMA1, 0x75100000); - - return 0; -} - -arch_initcall(s3c64xx_dma_init); diff --git a/trunk/arch/arm/plat-s3c64xx/include/plat/dma-plat.h b/trunk/arch/arm/plat-s3c64xx/include/plat/dma-plat.h deleted file mode 100644 index 0c30dd986725..000000000000 --- a/trunk/arch/arm/plat-s3c64xx/include/plat/dma-plat.h +++ /dev/null @@ -1,70 +0,0 @@ -/* linux/arch/arm/plat-s3c64xx/include/plat/dma-plat.h - * - * Copyright 2009 Openmoko, Inc. - * Copyright 2009 Simtec Electronics - * Ben Dooks - * http://armlinux.simtec.co.uk/ - * - * S3C64XX DMA core - * - * 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. -*/ - -#define DMACH_LOW_LEVEL (1<<28) /* use this to specifiy hardware ch no */ - -struct s3c64xx_dma_buff; - -/** s3c64xx_dma_buff - S3C64XX DMA buffer descriptor - * @next: Pointer to next buffer in queue or ring. - * @pw: Client provided identifier - * @lli: Pointer to hardware descriptor this buffer is associated with. - * @lli_dma: Hardare address of the descriptor. - */ -struct s3c64xx_dma_buff { - struct s3c64xx_dma_buff *next; - - void *pw; - struct pl080_lli *lli; - dma_addr_t lli_dma; -}; - -struct s3c64xx_dmac; - -struct s3c2410_dma_chan { - unsigned char number; /* number of this dma channel */ - unsigned char in_use; /* channel allocated */ - unsigned char bit; /* bit for enable/disable/etc */ - unsigned char hw_width; - unsigned char peripheral; - - unsigned int flags; - enum s3c2410_dmasrc source; - - - dma_addr_t dev_addr; - - struct s3c2410_dma_client *client; - struct s3c64xx_dmac *dmac; /* pointer to controller */ - - void __iomem *regs; - - /* cdriver callbacks */ - s3c2410_dma_cbfn_t callback_fn; /* buffer done callback */ - s3c2410_dma_opfn_t op_fn; /* channel op callback */ - - /* buffer list and information */ - struct s3c64xx_dma_buff *curr; /* current dma buffer */ - struct s3c64xx_dma_buff *next; /* next buffer to load */ - struct s3c64xx_dma_buff *end; /* end of queue */ - - /* note, when channel is running in circular mode, curr is the - * first buffer enqueued, end is the last and curr is where the - * last buffer-done event is set-at. The buffers are not freed - * and the last buffer hardware descriptor points back to the - * first. - */ -}; - -#include diff --git a/trunk/drivers/mmc/host/s3cmci.c b/trunk/drivers/mmc/host/s3cmci.c index 889f35047a52..2db166b7096f 100644 --- a/trunk/drivers/mmc/host/s3cmci.c +++ b/trunk/drivers/mmc/host/s3cmci.c @@ -789,7 +789,7 @@ static void s3cmci_dma_setup(struct s3cmci_host *host, last_source = source; - s3c2410_dma_devconfig(host->dma, source, + s3c2410_dma_devconfig(host->dma, source, 3, host->mem->start + host->sdidata); if (!setup_ok) { diff --git a/trunk/sound/soc/s3c24xx/s3c24xx-pcm.c b/trunk/sound/soc/s3c24xx/s3c24xx-pcm.c index eecfa5eba06b..169ddad31575 100644 --- a/trunk/sound/soc/s3c24xx/s3c24xx-pcm.c +++ b/trunk/sound/soc/s3c24xx/s3c24xx-pcm.c @@ -218,17 +218,24 @@ static int s3c24xx_pcm_prepare(struct snd_pcm_substream *substream) * sync to pclk, half-word transfers to the IIS-FIFO. */ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { s3c2410_dma_devconfig(prtd->params->channel, - S3C2410_DMASRC_MEM, - prtd->params->dma_addr); + S3C2410_DMASRC_MEM, S3C2410_DISRCC_INC | + S3C2410_DISRCC_APB, prtd->params->dma_addr); + + s3c2410_dma_config(prtd->params->channel, + prtd->params->dma_size, + S3C2410_DCON_SYNC_PCLK | + S3C2410_DCON_HANDSHAKE); } else { + s3c2410_dma_config(prtd->params->channel, + prtd->params->dma_size, + S3C2410_DCON_HANDSHAKE | + S3C2410_DCON_SYNC_PCLK); + s3c2410_dma_devconfig(prtd->params->channel, - S3C2410_DMASRC_HW, - prtd->params->dma_addr); + S3C2410_DMASRC_HW, 0x3, + prtd->params->dma_addr); } - s3c2410_dma_config(prtd->params->channel, - prtd->params->dma_size); - /* flush the DMA channel */ s3c2410_dma_ctrl(prtd->params->channel, S3C2410_DMAOP_FLUSH); prtd->dma_loaded = 0;