diff -urNp linux-2.6.18-rc7/arch/arm/configs/s3c2410_defconfig linux-2.6.18-rc7-all1/arch/arm/configs/s3c2410_defconfig --- linux-2.6.18-rc7/arch/arm/configs/s3c2410_defconfig 2006-09-14 09:47:06.000000000 +0100 +++ linux-2.6.18-rc7-all1/arch/arm/configs/s3c2410_defconfig 2006-09-14 10:45:54.000000000 +0100 @@ -1,14 +1,18 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.17-git9 -# Sun Jun 25 23:56:32 2006 +# Linux kernel version: 2.6.18-rc5 +# Thu Aug 31 14:58:05 2006 # CONFIG_ARM=y CONFIG_MMU=y +CONFIG_GENERIC_HARDIRQS=y +CONFIG_HARDIRQS_SW_RESEND=y +CONFIG_GENERIC_IRQ_PROBE=y CONFIG_RWSEM_GENERIC_SPINLOCK=y CONFIG_GENERIC_HWEIGHT=y CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_VECTORS_BASE=0xffff0000 +CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" # # Code maturity level options @@ -26,6 +30,7 @@ CONFIG_SWAP=y CONFIG_SYSVIPC=y # CONFIG_POSIX_MQUEUE is not set # CONFIG_BSD_PROCESS_ACCT is not set +# CONFIG_TASKSTATS is not set CONFIG_SYSCTL=y # CONFIG_AUDIT is not set # CONFIG_IKCONFIG is not set @@ -42,10 +47,12 @@ CONFIG_PRINTK=y CONFIG_BUG=y CONFIG_ELF_CORE=y CONFIG_BASE_FULL=y +CONFIG_RT_MUTEXES=y CONFIG_FUTEX=y CONFIG_EPOLL=y CONFIG_SHMEM=y CONFIG_SLAB=y +CONFIG_VM_EVENT_COUNTERS=y # CONFIG_TINY_SHMEM is not set CONFIG_BASE_SMALL=0 # CONFIG_SLOB is not set @@ -84,7 +91,7 @@ CONFIG_DEFAULT_IOSCHED="anticipatory" # CONFIG_ARCH_INTEGRATOR is not set # CONFIG_ARCH_REALVIEW is not set # CONFIG_ARCH_VERSATILE is not set -# CONFIG_ARCH_AT91RM9200 is not set +# CONFIG_ARCH_AT91 is not set # CONFIG_ARCH_CLPS7500 is not set # CONFIG_ARCH_CLPS711X is not set # CONFIG_ARCH_CO285 is not set @@ -128,6 +135,7 @@ CONFIG_MACH_RX3715=y CONFIG_MACH_OTOM=y CONFIG_MACH_NEXCODER_2440=y CONFIG_S3C2410_CLOCK=y +CONFIG_CPU_S3C2410_DMA=y CONFIG_CPU_S3C2410=y CONFIG_CPU_S3C2412=y CONFIG_CPU_S3C244X=y @@ -200,6 +208,7 @@ CONFIG_FLATMEM=y CONFIG_FLAT_NODE_MEM_MAP=y # CONFIG_SPARSEMEM_STATIC is not set CONFIG_SPLIT_PTLOCK_CPUS=4096 +# CONFIG_RESOURCES_64BIT is not set CONFIG_ALIGNMENT_TRAP=y # @@ -460,6 +469,7 @@ CONFIG_BLK_DEV_NBD=m CONFIG_BLK_DEV_RAM=y CONFIG_BLK_DEV_RAM_COUNT=16 CONFIG_BLK_DEV_RAM_SIZE=4096 +CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024 CONFIG_BLK_DEV_INITRD=y # CONFIG_CDROM_PKTCDVD is not set CONFIG_ATA_OVER_ETH=m @@ -640,6 +650,7 @@ CONFIG_SERIO_LIBPS2=y CONFIG_VT=y CONFIG_VT_CONSOLE=y CONFIG_HW_CONSOLE=y +# CONFIG_VT_HW_CONSOLE_BINDING is not set CONFIG_SERIAL_NONSTANDARD=y # CONFIG_COMPUTONE is not set # CONFIG_ROCKETPORT is not set @@ -716,8 +727,8 @@ CONFIG_S3C2410_WATCHDOG=y # USB-based Watchdog Cards # # CONFIG_USBPCWATCHDOG is not set +CONFIG_HW_RANDOM=y # CONFIG_NVRAM is not set -CONFIG_S3C2410_RTC=y # CONFIG_DTLK is not set # CONFIG_R3964 is not set @@ -857,12 +868,12 @@ CONFIG_VIDEO_V4L2=y # # Graphics support # +CONFIG_FIRMWARE_EDID=y CONFIG_FB=y CONFIG_FB_CFB_FILLRECT=y CONFIG_FB_CFB_COPYAREA=y CONFIG_FB_CFB_IMAGEBLIT=y # CONFIG_FB_MACMODES is not set -CONFIG_FB_FIRMWARE_EDID=y # CONFIG_FB_BACKLIGHT is not set CONFIG_FB_MODE_HELPERS=y # CONFIG_FB_TILEBLITTING is not set @@ -995,7 +1006,7 @@ CONFIG_USB_MON=y # CONFIG_USB_LEGOTOWER is not set # CONFIG_USB_LCD is not set # CONFIG_USB_LED is not set -# CONFIG_USB_CY7C63 is not set +# CONFIG_USB_CYPRESS_CY7C63 is not set # CONFIG_USB_CYTHERM is not set # CONFIG_USB_PHIDGETKIT is not set # CONFIG_USB_PHIDGETSERVO is not set @@ -1095,6 +1106,7 @@ CONFIG_JFFS2_FS=y CONFIG_JFFS2_FS_DEBUG=0 CONFIG_JFFS2_FS_WRITEBUFFER=y # CONFIG_JFFS2_SUMMARY is not set +# CONFIG_JFFS2_FS_XATTR is not set # CONFIG_JFFS2_COMPRESSION_OPTIONS is not set CONFIG_JFFS2_ZLIB=y CONFIG_JFFS2_RTIME=y @@ -1202,14 +1214,19 @@ CONFIG_NLS_DEFAULT="iso8859-1" # # CONFIG_PRINTK_TIME is not set CONFIG_MAGIC_SYSRQ=y +# CONFIG_UNUSED_SYMBOLS is not set CONFIG_DEBUG_KERNEL=y CONFIG_LOG_BUF_SHIFT=16 CONFIG_DETECT_SOFTLOCKUP=y # CONFIG_SCHEDSTATS is not set # CONFIG_DEBUG_SLAB is not set -CONFIG_DEBUG_MUTEXES=y +# CONFIG_DEBUG_RT_MUTEXES is not set +# CONFIG_RT_MUTEX_TESTER is not set # CONFIG_DEBUG_SPINLOCK is not set +CONFIG_DEBUG_MUTEXES=y +# CONFIG_DEBUG_RWSEMS is not set # CONFIG_DEBUG_SPINLOCK_SLEEP is not set +# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set # CONFIG_DEBUG_KOBJECT is not set CONFIG_DEBUG_BUGVERBOSE=y CONFIG_DEBUG_INFO=y @@ -1251,3 +1268,4 @@ CONFIG_CRC32=y # CONFIG_LIBCRC32C is not set CONFIG_ZLIB_INFLATE=y CONFIG_ZLIB_DEFLATE=y +CONFIG_PLIST=y diff -urNp linux-2.6.18-rc7/arch/arm/mach-s3c2410/Kconfig linux-2.6.18-rc7-all1/arch/arm/mach-s3c2410/Kconfig --- linux-2.6.18-rc7/arch/arm/mach-s3c2410/Kconfig 2006-09-14 09:47:06.000000000 +0100 +++ linux-2.6.18-rc7-all1/arch/arm/mach-s3c2410/Kconfig 2006-09-14 10:45:54.000000000 +0100 @@ -81,9 +81,23 @@ config SMDK2440_CPU2442 depends on ARCH_S3C2440 select CPU_S3C2442 +config MACH_S3C2413 + bool + help + Internal node for S3C2413 verison of SMDK2413, so that + machine_is_s3c2413() will work when MACH_SMDK2413 is + selected + +config MACH_SMDK2412 + bool "SMDK2412" + select MACH_SMDK2413 + help + Say Y here if you are using an SMDK2412 + config MACH_SMDK2413 bool "SMDK2413" select CPU_S3C2412 + select MACH_S3C2413 select MACH_SMDK help Say Y here if you are using an SMDK2413 @@ -125,10 +139,24 @@ config S3C2410_CLOCK help Clock code for the S3C2410, and similar processors +config S3C2410_PM + bool + depends on CONFIG_PM + help + Power Management code common to S3C2410 and better + +config CPU_S3C2410_DMA + bool + depends on S3C2410_DMA && (CPU_S3C2410 || CPU_S3C2442) + default y if CPU_S3C2410 || CPU_S3C2442 + help + DMA device selection for S3C2410 and compatible CPUs + config CPU_S3C2410 bool depends on ARCH_S3C2410 select S3C2410_CLOCK + select S3C2410_PM help Support for S3C2410 and S3C2410A family from the S3C24XX line of Samsung Mobile CPUs. @@ -157,6 +185,7 @@ config CPU_S3C2440 bool depends on ARCH_S3C2410 select S3C2410_CLOCK + select S3C2410_PM select CPU_S3C244X help Support for S3C2440 Samsung Mobile CPU based systems. @@ -165,6 +194,7 @@ config CPU_S3C2442 bool depends on ARCH_S3C2420 select S3C2410_CLOCK + select S3C2410_PM select CPU_S3C244X help Support for S3C2442 Samsung Mobile CPU based systems. diff -urNp linux-2.6.18-rc7/arch/arm/mach-s3c2410/Makefile linux-2.6.18-rc7-all1/arch/arm/mach-s3c2410/Makefile --- linux-2.6.18-rc7/arch/arm/mach-s3c2410/Makefile 2006-09-14 09:47:06.000000000 +0100 +++ linux-2.6.18-rc7-all1/arch/arm/mach-s3c2410/Makefile 2006-09-14 10:45:54.000000000 +0100 @@ -9,6 +9,8 @@ obj-y := cpu.o irq.o time.o gpio.o clo obj-m := obj-n := obj- := +obj-dma-y := +obj-dma-n := # DMA obj-$(CONFIG_S3C2410_DMA) += dma.o @@ -20,6 +22,10 @@ obj-$(CONFIG_CPU_S3C2400) += s3c2400-gpi obj-$(CONFIG_CPU_S3C2410) += s3c2410.o obj-$(CONFIG_CPU_S3C2410) += s3c2410-gpio.o +obj-$(CONFIG_CPU_S3C2410) += s3c2410-irq.o + +obj-$(CONFIG_S3C2410_PM) += s3c2410-pm.o s3c2410-sleep.o +obj-$(CONFIG_CPU_S3C2410_DMA) += s3c2410-dma.o # Power Management support @@ -30,6 +36,7 @@ obj-$(CONFIG_PM_SIMTEC) += pm-simtec.o obj-$(CONFIG_CPU_S3C2412) += s3c2412.o obj-$(CONFIG_CPU_S3C2412) += s3c2412-irq.o obj-$(CONFIG_CPU_S3C2412) += s3c2412-clock.o +obj-dma-$(CONFIG_CPU_S3C2412) += s3c2412-dma.o # # S3C244X support @@ -47,6 +54,7 @@ obj-$(CONFIG_CPU_S3C2440) += s3c2440.o s obj-$(CONFIG_CPU_S3C2440) += s3c2440-irq.o obj-$(CONFIG_CPU_S3C2440) += s3c2440-clock.o obj-$(CONFIG_CPU_S3C2440) += s3c2410-gpio.o +obj-dma-$(CONFIG_CPU_S3C2440) += s3c2440-dma.o # S3C2442 support @@ -57,6 +65,10 @@ obj-$(CONFIG_CPU_S3C2442) += s3c2442-clo obj-$(CONFIG_BAST_PC104_IRQ) += bast-irq.o +# merge in dma objects + +obj-y += $(obj-dma-y) + # machine specific support obj-$(CONFIG_MACH_ANUBIS) += mach-anubis.o diff -urNp linux-2.6.18-rc7/arch/arm/mach-s3c2410/dma.c linux-2.6.18-rc7-all1/arch/arm/mach-s3c2410/dma.c --- linux-2.6.18-rc7/arch/arm/mach-s3c2410/dma.c 2006-09-14 09:47:06.000000000 +0100 +++ linux-2.6.18-rc7-all1/arch/arm/mach-s3c2410/dma.c 2006-09-14 10:45:54.000000000 +0100 @@ -1,35 +1,16 @@ -/* linux/arch/arm/mach-bast/dma.c +/* linux/arch/arm/mach-s3c2410/dma.c * - * (c) 2003-2005 Simtec Electronics + * (c) 2003-2005,2006 Simtec Electronics * Ben Dooks * * S3C2410 DMA core * - * http://www.simtec.co.uk/products/EB2410ITX/ + * http://armlinux.simtec.co.uk/ * * 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. - * - * Changelog: - * 27-Feb-2005 BJD Added kmem cache for dma descriptors - * 18-Nov-2004 BJD Removed error for loading onto stopped channel - * 10-Nov-2004 BJD Ensure all external symbols exported for modules - * 10-Nov-2004 BJD Use sys_device and sysdev_class for power management - * 08-Aug-2004 BJD Apply rmk's suggestions - * 21-Jul-2004 BJD Ported to linux 2.6 - * 12-Jul-2004 BJD Finished re-write and change of API - * 06-Jul-2004 BJD Rewrote dma code to try and cope with various problems - * 23-May-2003 BJD Created file - * 19-Aug-2003 BJD Cleanup, header fix, added URL - * - * This file is based on the Sangwook Lee/Samsung patches, re-written due - * to various ommisions from the code (such as flexible dma configuration) - * for use with the BAST system board. - * - * The re-write is pretty much complete, and should be good enough for any - * possible DMA function - */ +*/ #ifdef CONFIG_S3C2410_DMA_DEBUG @@ -55,10 +36,14 @@ #include #include +#include "dma.h" + /* io map for dma */ static void __iomem *dma_base; static kmem_cache_t *dma_kmem; +struct s3c24xx_dma_selection dma_sel; + /* dma channel state information */ struct s3c2410_dma_chan s3c2410_chans[S3C2410_DMA_CHANNELS]; @@ -79,7 +64,6 @@ dma_wrreg(struct s3c2410_dma_chan *chan, pr_debug("writing %08x to register %08x\n",(unsigned int)val,reg); writel(val, dma_regaddr(chan, reg)); } - #endif #define dma_rdreg(chan, reg) readl((chan)->regs + (reg)) @@ -151,12 +135,20 @@ dmadbg_showregs(const char *fname, int l #define dbg_showchan(chan) do { } while(0) #endif /* CONFIG_S3C2410_DMA_DEBUG */ -#define check_channel(chan) \ - do { if ((chan) >= S3C2410_DMA_CHANNELS) { \ - printk(KERN_ERR "%s: invalid channel %d\n", __FUNCTION__, (chan)); \ - return -EINVAL; \ - } } while(0) +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 * @@ -321,8 +313,10 @@ static inline void s3c2410_dma_buffdone(struct s3c2410_dma_chan *chan, struct s3c2410_dma_buf *buf, enum s3c2410_dma_buffresult result) { +#if 0 pr_debug("callback_fn=%p, buf=%p, id=%p, size=%d, result=%d\n", chan->callback_fn, buf, buf->id, buf->size, result); +#endif if (chan->callback_fn != NULL) { (chan->callback_fn)(chan, buf->id, buf->size, result); @@ -439,7 +433,6 @@ s3c2410_dma_canload(struct s3c2410_dma_c return 0; } - /* s3c2410_dma_enqueue * * queue an given buffer for dma transfer. @@ -460,11 +453,12 @@ s3c2410_dma_canload(struct s3c2410_dma_c int s3c2410_dma_enqueue(unsigned int channel, void *id, dma_addr_t data, int size) { - struct s3c2410_dma_chan *chan = &s3c2410_chans[channel]; + struct s3c2410_dma_chan *chan = lookup_dma_channel(channel); struct s3c2410_dma_buf *buf; unsigned long flags; - check_channel(channel); + if (chan == NULL) + return -EINVAL; pr_debug("%s: id=%p, data=%08x, size=%d\n", __FUNCTION__, id, (unsigned int)data, size); @@ -562,8 +556,10 @@ s3c2410_dma_freebuf(struct s3c2410_dma_b static inline void s3c2410_dma_lastxfer(struct s3c2410_dma_chan *chan) { +#if 0 pr_debug("dma%d: s3c2410_dma_lastxfer: load_state %d\n", chan->number, chan->load_state); +#endif switch (chan->load_state) { case S3C2410_DMALOAD_NONE: @@ -718,7 +714,8 @@ s3c2410_dma_irq(int irq, void *devpw, st if (chan->load_state == S3C2410_DMALOAD_NONE) { pr_debug("dma%d: end of transfer, stopping channel (%ld)\n", chan->number, jiffies); - s3c2410_dma_ctrl(chan->number, S3C2410_DMAOP_STOP); + s3c2410_dma_ctrl(chan->number | DMACH_LOW_LEVEL, + S3C2410_DMAOP_STOP); } } @@ -726,37 +723,34 @@ s3c2410_dma_irq(int irq, void *devpw, st return IRQ_HANDLED; } +static struct s3c2410_dma_chan *s3c2410_dma_map_channel(int channel); + /* s3c2410_request_dma * * get control of an dma channel */ -int s3c2410_dma_request(unsigned int channel, struct s3c2410_dma_client *client, +int s3c2410_dma_request(unsigned int channel, + struct s3c2410_dma_client *client, void *dev) { - struct s3c2410_dma_chan *chan = &s3c2410_chans[channel]; + struct s3c2410_dma_chan *chan; unsigned long flags; int err; pr_debug("dma%d: s3c2410_request_dma: client=%s, dev=%p\n", channel, client->name, dev); - check_channel(channel); - local_irq_save(flags); - dbg_showchan(chan); - - if (chan->in_use) { - if (client != chan->client) { - printk(KERN_ERR "dma%d: already in use\n", channel); - local_irq_restore(flags); - return -EBUSY; - } else { - printk(KERN_ERR "dma%d: client already has channel\n", channel); - } + chan = s3c2410_dma_map_channel(channel); + if (chan == NULL) { + local_irq_restore(flags); + return -EBUSY; } + dbg_showchan(chan); + chan->client = client; chan->in_use = 1; @@ -809,14 +803,14 @@ EXPORT_SYMBOL(s3c2410_dma_request); int s3c2410_dma_free(dmach_t channel, struct s3c2410_dma_client *client) { - struct s3c2410_dma_chan *chan = &s3c2410_chans[channel]; + struct s3c2410_dma_chan *chan = lookup_dma_channel(channel); unsigned long flags; - check_channel(channel); + 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); @@ -830,15 +824,19 @@ int s3c2410_dma_free(dmach_t channel, st /* possibly flush the channel */ s3c2410_dma_ctrl(channel, S3C2410_DMAOP_STOP); - } + } chan->client = NULL; chan->in_use = 0; if (chan->irq_claimed) free_irq(chan->irq, (void *)chan); + chan->irq_claimed = 0; + if (!(channel & DMACH_LOW_LEVEL)) + dma_chan_map[channel] = NULL; + local_irq_restore(flags); return 0; @@ -848,8 +846,8 @@ EXPORT_SYMBOL(s3c2410_dma_free); static int s3c2410_dma_dostop(struct s3c2410_dma_chan *chan) { - unsigned long tmp; unsigned long flags; + unsigned long tmp; pr_debug("%s:\n", __FUNCTION__); @@ -936,7 +934,7 @@ static int s3c2410_dma_flush(struct s3c2 } dbg_showregs(chan); - + s3c2410_dma_waitforstop(chan); #if 0 @@ -997,9 +995,10 @@ s3c2410_dma_started(struct s3c2410_dma_c int s3c2410_dma_ctrl(dmach_t channel, enum s3c2410_chan_op op) { - struct s3c2410_dma_chan *chan = &s3c2410_chans[channel]; + struct s3c2410_dma_chan *chan = lookup_dma_channel(channel); - check_channel(channel); + if (chan == NULL) + return -EINVAL; switch (op) { case S3C2410_DMAOP_START: @@ -1046,12 +1045,19 @@ int s3c2410_dma_config(dmach_t channel, int xferunit, int dcon) { - struct s3c2410_dma_chan *chan = &s3c2410_chans[channel]; + struct s3c2410_dma_chan *chan = lookup_dma_channel(channel); pr_debug("%s: chan=%d, xfer_unit=%d, dcon=%08x\n", __FUNCTION__, channel, xferunit, dcon); - check_channel(channel); + if (chan == NULL) + return -EINVAL; + + printk("Initial dcon is %08x\n", dcon); + + dcon |= chan->dcon & dma_sel.dcon_mask; + + printk("New dcon is %08x\n", dcon); switch (xferunit) { case 1: @@ -1086,9 +1092,10 @@ EXPORT_SYMBOL(s3c2410_dma_config); int s3c2410_dma_setflags(dmach_t channel, unsigned int flags) { - struct s3c2410_dma_chan *chan = &s3c2410_chans[channel]; + struct s3c2410_dma_chan *chan = lookup_dma_channel(channel); - check_channel(channel); + if (chan == NULL) + return -EINVAL; pr_debug("%s: chan=%p, flags=%08x\n", __FUNCTION__, chan, flags); @@ -1106,9 +1113,10 @@ EXPORT_SYMBOL(s3c2410_dma_setflags); int s3c2410_dma_set_opfn(dmach_t channel, s3c2410_dma_opfn_t rtn) { - struct s3c2410_dma_chan *chan = &s3c2410_chans[channel]; + struct s3c2410_dma_chan *chan = lookup_dma_channel(channel); - check_channel(channel); + if (chan == NULL) + return -EINVAL; pr_debug("%s: chan=%p, op rtn=%p\n", __FUNCTION__, chan, rtn); @@ -1121,9 +1129,10 @@ EXPORT_SYMBOL(s3c2410_dma_set_opfn); int s3c2410_dma_set_buffdone_fn(dmach_t channel, s3c2410_dma_cbfn_t rtn) { - struct s3c2410_dma_chan *chan = &s3c2410_chans[channel]; + struct s3c2410_dma_chan *chan = lookup_dma_channel(channel); - check_channel(channel); + if (chan == NULL) + return -EINVAL; pr_debug("%s: chan=%p, callback rtn=%p\n", __FUNCTION__, chan, rtn); @@ -1153,9 +1162,10 @@ int s3c2410_dma_devconfig(int channel, int hwcfg, unsigned long devaddr) { - struct s3c2410_dma_chan *chan = &s3c2410_chans[channel]; + struct s3c2410_dma_chan *chan = lookup_dma_channel(channel); - check_channel(channel); + if (chan == NULL) + return -EINVAL; pr_debug("%s: source=%d, hwcfg=%08x, devaddr=%08lx\n", __FUNCTION__, (int)source, hwcfg, devaddr); @@ -1200,9 +1210,10 @@ EXPORT_SYMBOL(s3c2410_dma_devconfig); int s3c2410_dma_getposition(dmach_t channel, dma_addr_t *src, dma_addr_t *dst) { - struct s3c2410_dma_chan *chan = &s3c2410_chans[channel]; + struct s3c2410_dma_chan *chan = lookup_dma_channel(channel); - check_channel(channel); + if (chan == NULL) + return -EINVAL; if (src != NULL) *src = dma_rdreg(chan, S3C2410_DMA_DCSRC); @@ -1252,7 +1263,7 @@ static int s3c2410_dma_resume(struct sys #define s3c2410_dma_resume NULL #endif /* CONFIG_PM */ -static struct sysdev_class dma_sysclass = { +struct sysdev_class dma_sysclass = { set_kset_name("s3c24xx-dma"), .suspend = s3c2410_dma_suspend, .resume = s3c2410_dma_resume, @@ -1265,7 +1276,6 @@ static void s3c2410_dma_cache_ctor(void memset(p, 0, sizeof(struct s3c2410_dma_buf)); } - /* initialisation code */ static int __init s3c2410_init_dma(void) @@ -1274,7 +1284,7 @@ static int __init s3c2410_init_dma(void) int channel; int ret; - printk("S3C2410 DMA Driver, (c) 2003-2004 Simtec Electronics\n"); + printk("S3C24XX DMA Driver, (c) 2003-2004,2006 Simtec Electronics\n"); dma_base = ioremap(S3C24XX_PA_DMA, 0x200); if (dma_base == NULL) { @@ -1282,6 +1292,8 @@ static int __init s3c2410_init_dma(void) return -ENOMEM; } + printk("Registering sysclass\n"); + ret = sysdev_class_register(&dma_sysclass); if (ret != 0) { printk(KERN_ERR "dma sysclass registration failed\n"); @@ -1335,4 +1347,95 @@ static int __init s3c2410_init_dma(void) return ret; } -__initcall(s3c2410_init_dma); +core_initcall(s3c2410_init_dma); + +static inline int is_channel_valid(unsigned int channel) +{ + return (channel & DMA_CH_VALID); +} + +/* s3c2410_dma_map_channel() + * + * turn the virtual channel number into a real, and un-used hardware + * channel. + * + * currently this code uses first-free channel from the specified harware + * map, not taking into account anything that the board setup code may + * have to say about the likely peripheral set to be in use. +*/ + +struct s3c2410_dma_chan *s3c2410_dma_map_channel(int channel) +{ + struct s3c24xx_dma_map *ch_map; + struct s3c2410_dma_chan *dmach; + int ch; + + if (dma_sel.map == NULL || channel > dma_sel.map_size) + return NULL; + + ch_map = dma_sel.map + channel; + + for (ch = 0; ch < S3C2410_DMA_CHANNELS; ch++) { + if (!is_channel_valid(ch_map->channels[ch])) + continue; + + if (s3c2410_chans[ch].in_use == 0) { + printk("mapped channel %d to %d\n", channel, ch); + break; + } + } + + if (ch >= S3C2410_DMA_CHANNELS) + return NULL; + + /* update our channel mapping */ + + dmach = &s3c2410_chans[ch]; + dma_chan_map[channel] = dmach; + + /* select the channel */ + + (dma_sel.select)(dmach, ch_map); + + return dmach; +} + +static void s3c24xx_dma_show_ch(struct s3c24xx_dma_map *map, int ch) +{ + /* show the channel configuration */ + + printk("%2d: %20s, channels %c%c%c%c\n", ch, map->name, + (is_channel_valid(map->channels[0]) ? '0' : '-'), + (is_channel_valid(map->channels[1]) ? '1' : '-'), + (is_channel_valid(map->channels[2]) ? '2' : '-'), + (is_channel_valid(map->channels[3]) ? '3' : '-')); +} + +static int s3c24xx_dma_check_entry(struct s3c24xx_dma_map *map, int ch) +{ + if (1) + s3c24xx_dma_show_ch(map, ch); + + return 0; +} + +int __init s3c24xx_dma_init_map(struct s3c24xx_dma_selection *sel) +{ + struct s3c24xx_dma_map *nmap; + size_t map_sz = sizeof(*nmap) * sel->map_size; + int ptr; + + nmap = kmalloc(map_sz, GFP_KERNEL); + if (nmap == NULL) + return -ENOMEM; + + memcpy(nmap, sel->map, map_sz); + memcpy(&dma_sel, sel, sizeof(*sel)); + + dma_sel.map = nmap; + + for (ptr = 0; ptr < sel->map_size; ptr++) + s3c24xx_dma_check_entry(nmap+ptr, ptr); + + return 0; +} diff -urNp linux-2.6.18-rc7/arch/arm/mach-s3c2410/dma.h linux-2.6.18-rc7-all1/arch/arm/mach-s3c2410/dma.h --- linux-2.6.18-rc7/arch/arm/mach-s3c2410/dma.h 1970-01-01 01:00:00.000000000 +0100 +++ linux-2.6.18-rc7-all1/arch/arm/mach-s3c2410/dma.h 2006-09-14 10:45:54.000000000 +0100 @@ -0,0 +1,45 @@ +/* arch/arm/mach-s3c2410/dma.h + * + * Copyright (C) 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. +*/ + +extern struct sysdev_class dma_sysclass; +extern struct s3c2410_dma_chan s3c2410_chans[S3C2410_DMA_CHANNELS]; + +#define DMA_CH_VALID (1<<31) + +struct s3c24xx_dma_addr { + unsigned long from; + unsigned long to; +}; + +/* struct s3c24xx_dma_map + * + * this holds the mapping information for the channel selected + * to be connected to the specified device +*/ + +struct s3c24xx_dma_map { + const char *name; + struct s3c24xx_dma_addr hw_addr; + + unsigned long channels[S3C2410_DMA_CHANNELS]; +}; + +struct s3c24xx_dma_selection { + struct s3c24xx_dma_map *map; + unsigned long map_size; + unsigned long dcon_mask; + + void (*select)(struct s3c2410_dma_chan *chan, + struct s3c24xx_dma_map *map); +}; + +extern int s3c24xx_dma_init_map(struct s3c24xx_dma_selection *sel); diff -urNp linux-2.6.18-rc7/arch/arm/mach-s3c2410/irq.c linux-2.6.18-rc7-all1/arch/arm/mach-s3c2410/irq.c --- linux-2.6.18-rc7/arch/arm/mach-s3c2410/irq.c 2006-09-14 09:47:06.000000000 +0100 +++ linux-2.6.18-rc7-all1/arch/arm/mach-s3c2410/irq.c 2006-09-14 10:45:54.000000000 +0100 @@ -586,6 +586,59 @@ s3c_irq_demux_extint(unsigned int irq, } } +#ifdef CONFIG_PM + +static struct sleep_save irq_save[] = { + SAVE_ITEM(S3C2410_INTMSK), + SAVE_ITEM(S3C2410_INTSUBMSK), +}; + +/* the extint values move between the s3c2410/s3c2440 and the s3c2412 + * so we use an array to hold them, and to calculate the address of + * the register at run-time +*/ + +static unsigned long save_extint[3]; +static unsigned long save_eintflt[4]; +static unsigned long save_eintmask; + +int s3c24xx_irq_suspend(struct sys_device *dev, pm_message_t state) +{ + unsigned int i; + + for (i = 0; i < ARRAY_SIZE(save_extint); i++) + save_extint[i] = __raw_readl(S3C24XX_EXTINT0 + (i*4)); + + for (i = 0; i < ARRAY_SIZE(save_eintflt); i++) + save_eintflt[i] = __raw_readl(S3C24XX_EINFLT0 + (i*4)); + + s3c2410_pm_do_save(irq_save, ARRAY_SIZE(irq_save)); + save_eintmask = __raw_readl(S3C24XX_EINTMASK); + + return 0; +} + +int s3c24xx_irq_resume(struct sys_device *dev) +{ + unsigned int i; + + for (i = 0; i < ARRAY_SIZE(save_extint); i++) + __raw_writel(save_extint[i], S3C24XX_EXTINT0 + (i*4)); + + for (i = 0; i < ARRAY_SIZE(save_eintflt); i++) + __raw_writel(save_eintflt[i], S3C24XX_EINFLT0 + (i*4)); + + s3c2410_pm_do_restore(irq_save, ARRAY_SIZE(irq_save)); + __raw_writel(save_eintmask, S3C24XX_EINTMASK); + + return 0; +} + +#else +#define s3c24xx_irq_suspend NULL +#define s3c24xx_irq_resume NULL +#endif + /* s3c24xx_init_irq * * Initialise S3C2410 IRQ system diff -urNp linux-2.6.18-rc7/arch/arm/mach-s3c2410/mach-smdk2413.c linux-2.6.18-rc7-all1/arch/arm/mach-s3c2410/mach-smdk2413.c --- linux-2.6.18-rc7/arch/arm/mach-s3c2410/mach-smdk2413.c 2006-09-14 09:47:06.000000000 +0100 +++ linux-2.6.18-rc7-all1/arch/arm/mach-s3c2410/mach-smdk2413.c 2006-09-14 10:45:54.000000000 +0100 @@ -137,3 +137,16 @@ MACHINE_START(SMDK2413, "SMDK2413") .init_machine = smdk2413_machine_init, .timer = &s3c24xx_timer, MACHINE_END + +MACHINE_START(SMDK2412, "SMDK2412") + /* Maintainer: Ben Dooks */ + .phys_io = S3C2410_PA_UART, + .io_pg_offst = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc, + .boot_params = S3C2410_SDRAM_PA + 0x100, + + .fixup = smdk2413_fixup, + .init_irq = s3c24xx_init_irq, + .map_io = smdk2413_map_io, + .init_machine = smdk2413_machine_init, + .timer = &s3c24xx_timer, +MACHINE_END diff -urNp linux-2.6.18-rc7/arch/arm/mach-s3c2410/pm.c linux-2.6.18-rc7-all1/arch/arm/mach-s3c2410/pm.c --- linux-2.6.18-rc7/arch/arm/mach-s3c2410/pm.c 2006-09-14 09:47:06.000000000 +0100 +++ linux-2.6.18-rc7-all1/arch/arm/mach-s3c2410/pm.c 2006-09-14 10:45:54.000000000 +0100 @@ -1,9 +1,9 @@ /* linux/arch/arm/mach-s3c2410/pm.c * - * Copyright (c) 2004 Simtec Electronics + * Copyright (c) 2004,2006 Simtec Electronics * Ben Dooks * - * S3C2410 Power Manager (Suspend-To-RAM) support + * S3C24XX Power Manager (Suspend-To-RAM) support * * See Documentation/arm/Samsung-S3C24XX/Suspend.txt for more information * @@ -24,9 +24,6 @@ * Parts based on arch/arm/mach-pxa/pm.c * * Thanks to Dimitry Andric for debugging - * - * Modifications: - * 10-Mar-2005 LCVR Changed S3C2410_VA_UART to S3C24XX_VA_UART */ #include @@ -38,6 +35,7 @@ #include #include +#include #include #include @@ -55,14 +53,6 @@ unsigned long s3c_pm_flags; -/* cache functions from arch/arm/mm/proc-arm920.S */ - -#ifndef CONFIG_CPU_DCACHE_WRITETHROUGH -extern void arm920_flush_kern_cache_all(void); -#else -static void arm920_flush_kern_cache_all(void) { } -#endif - #define PFX "s3c24xx-pm: " static struct sleep_save core_save[] = { @@ -92,19 +82,6 @@ static struct sleep_save core_save[] = { SAVE_ITEM(S3C2410_REFRESH), }; -/* this lot should be really saved by the IRQ code */ -static struct sleep_save irq_save[] = { - SAVE_ITEM(S3C2410_EXTINT0), - SAVE_ITEM(S3C2410_EXTINT1), - SAVE_ITEM(S3C2410_EXTINT2), - SAVE_ITEM(S3C2410_EINFLT0), - SAVE_ITEM(S3C2410_EINFLT1), - SAVE_ITEM(S3C2410_EINFLT2), - SAVE_ITEM(S3C2410_EINFLT3), - SAVE_ITEM(S3C2410_EINTMASK), - SAVE_ITEM(S3C2410_INTMSK) -}; - static struct sleep_save gpio_save[] = { SAVE_ITEM(S3C2410_GPACON), SAVE_ITEM(S3C2410_GPADAT), @@ -165,7 +142,7 @@ static struct sleep_save uart_save[] = { extern void printascii(const char *); -static void pm_dbg(const char *fmt, ...) +void pm_dbg(const char *fmt, ...) { va_list va; char buff[256]; @@ -509,6 +486,9 @@ static void s3c2410_pm_configure_extint( } } +void (*pm_cpu_prep)(void); +void (*pm_cpu_sleep)(void); + #define any_allowed(mask, allow) (((mask) & (allow)) != (allow)) /* s3c2410_pm_enter @@ -519,7 +499,6 @@ static void s3c2410_pm_configure_extint( static int s3c2410_pm_enter(suspend_state_t state) { unsigned long regs_save[16]; - unsigned long tmp; /* ensure the debug is initialised (if enabled) */ @@ -527,6 +506,11 @@ static int s3c2410_pm_enter(suspend_stat DBG("s3c2410_pm_enter(%d)\n", state); + if (pm_cpu_prep == NULL || pm_cpu_sleep == NULL) { + printk(KERN_ERR PFX "error: no cpu sleep functions set\n"); + return -EINVAL; + } + if (state != PM_SUSPEND_MEM) { printk(KERN_ERR PFX "error: only PM_SUSPEND_MEM supported\n"); return -EINVAL; @@ -554,17 +538,9 @@ static int s3c2410_pm_enter(suspend_stat DBG("s3c2410_sleep_save_phys=0x%08lx\n", s3c2410_sleep_save_phys); - /* ensure at least GESTATUS3 has the resume address */ - - __raw_writel(virt_to_phys(s3c2410_cpu_resume), S3C2410_GSTATUS3); - - DBG("GSTATUS3 0x%08x\n", __raw_readl(S3C2410_GSTATUS3)); - DBG("GSTATUS4 0x%08x\n", __raw_readl(S3C2410_GSTATUS4)); - /* save all necessary core registers not covered by the drivers */ s3c2410_pm_do_save(gpio_save, ARRAY_SIZE(gpio_save)); - s3c2410_pm_do_save(irq_save, ARRAY_SIZE(irq_save)); s3c2410_pm_do_save(core_save, ARRAY_SIZE(core_save)); s3c2410_pm_do_save(uart_save, ARRAY_SIZE(uart_save)); @@ -582,9 +558,13 @@ static int s3c2410_pm_enter(suspend_stat __raw_writel(__raw_readl(S3C2410_EINTPEND), S3C2410_EINTPEND); - /* flush cache back to ram */ + /* call cpu specific preperation */ - arm920_flush_kern_cache_all(); + pm_cpu_prep(); + + /* flush cache back to ram */ + + flush_cache_all(); s3c2410_pm_check_store(); @@ -592,23 +572,23 @@ static int s3c2410_pm_enter(suspend_stat __raw_writel(0x00, S3C2410_CLKCON); /* turn off clocks over sleep */ - s3c2410_cpu_suspend(regs_save); + /* s3c2410_cpu_save will also act as our return point from when + * we resume as it saves its own register state, so use the return + * code to differentiate return from save and return from sleep */ + + if (s3c2410_cpu_save(regs_save) == 0) { + flush_cache_all(); + pm_cpu_sleep(); + } /* restore the cpu state */ cpu_init(); - /* unset the return-from-sleep flag, to ensure reset */ - - tmp = __raw_readl(S3C2410_GSTATUS2); - tmp &= S3C2410_GSTATUS2_OFFRESET; - __raw_writel(tmp, S3C2410_GSTATUS2); - /* restore the system state */ s3c2410_pm_do_restore_core(core_save, ARRAY_SIZE(core_save)); s3c2410_pm_do_restore(gpio_save, ARRAY_SIZE(gpio_save)); - s3c2410_pm_do_restore(irq_save, ARRAY_SIZE(irq_save)); s3c2410_pm_do_restore(uart_save, ARRAY_SIZE(uart_save)); s3c2410_pm_debug_init(); diff -urNp linux-2.6.18-rc7/arch/arm/mach-s3c2410/pm.h linux-2.6.18-rc7-all1/arch/arm/mach-s3c2410/pm.h --- linux-2.6.18-rc7/arch/arm/mach-s3c2410/pm.h 2006-06-18 02:49:35.000000000 +0100 +++ linux-2.6.18-rc7-all1/arch/arm/mach-s3c2410/pm.h 2006-09-14 10:45:54.000000000 +0100 @@ -34,13 +34,19 @@ extern unsigned long s3c_irqwake_eintmas extern unsigned long s3c_irqwake_intallow; extern unsigned long s3c_irqwake_eintallow; +/* per-cpu sleep functions */ + +extern void (*pm_cpu_prep)(void); +extern void (*pm_cpu_sleep)(void); + /* Flags for PM Control */ extern unsigned long s3c_pm_flags; /* from sleep.S */ -extern void s3c2410_cpu_suspend(unsigned long *saveblk); +extern int s3c2410_cpu_save(unsigned long *saveblk); +extern void s3c2410_cpu_suspend(void); extern void s3c2410_cpu_resume(void); extern unsigned long s3c2410_sleep_save_phys; @@ -57,3 +63,11 @@ struct sleep_save { extern void s3c2410_pm_do_save(struct sleep_save *ptr, int count); extern void s3c2410_pm_do_restore(struct sleep_save *ptr, int count); + +#ifdef CONFIG_PM +extern int s3c24xx_irq_suspend(struct sys_device *dev, pm_message_t state); +extern int s3c24xx_irq_resume(struct sys_device *dev); +#else +#define s3c24xx_irq_suspend NULL +#define s3c24xx_irq_resume NULL +#endif diff -urNp linux-2.6.18-rc7/arch/arm/mach-s3c2410/s3c2410-dma.c linux-2.6.18-rc7-all1/arch/arm/mach-s3c2410/s3c2410-dma.c --- linux-2.6.18-rc7/arch/arm/mach-s3c2410/s3c2410-dma.c 1970-01-01 01:00:00.000000000 +0100 +++ linux-2.6.18-rc7-all1/arch/arm/mach-s3c2410/s3c2410-dma.c 2006-09-14 10:45:54.000000000 +0100 @@ -0,0 +1,158 @@ +/* linux/arch/arm/mach-s3c2410/s3c2410-dma.c + * + * (c) 2006 Simtec Electronics + * Ben Dooks + * + * S3C2410 DMA selection + * + * http://armlinux.simtec.co.uk/ + * + * 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 "dma.h" + +#include "cpu.h" + +#include +#include +#include +#include +#include +#include +#include +#include + +static struct s3c24xx_dma_map __initdata s3c2410_dma_mappings[] = { + [DMACH_XD0] = { + .name = "xdreq0", + .channels[0] = S3C2410_DCON_CH0_XDREQ0 | DMA_CH_VALID, + }, + [DMACH_XD1] = { + .name = "xdreq1", + .channels[1] = S3C2410_DCON_CH1_XDREQ1 | DMA_CH_VALID, + }, + [DMACH_SDI] = { + .name = "sdi", + .channels[0] = S3C2410_DCON_CH0_SDI | DMA_CH_VALID, + .channels[2] = S3C2410_DCON_CH2_SDI | DMA_CH_VALID, + .channels[3] = S3C2410_DCON_CH3_SDI | DMA_CH_VALID, + .hw_addr.to = S3C2410_PA_IIS + S3C2410_IISFIFO, + .hw_addr.from = S3C2410_PA_IIS + S3C2410_IISFIFO, + }, + [DMACH_SPI0] = { + .name = "spi0", + .channels[1] = S3C2410_DCON_CH1_SPI | DMA_CH_VALID, + .hw_addr.to = S3C2410_PA_SPI + S3C2410_SPTDAT, + .hw_addr.from = S3C2410_PA_SPI + S3C2410_SPRDAT, + }, + [DMACH_SPI1] = { + .name = "spi1", + .channels[3] = S3C2410_DCON_CH3_SPI | DMA_CH_VALID, + .hw_addr.to = S3C2410_PA_SPI + 0x20 + S3C2410_SPTDAT, + .hw_addr.from = S3C2410_PA_SPI + 0x20 + S3C2410_SPRDAT, + }, + [DMACH_UART0] = { + .name = "uart0", + .channels[0] = S3C2410_DCON_CH0_UART0 | DMA_CH_VALID, + .hw_addr.to = S3C2410_PA_UART0 + S3C2410_UTXH, + .hw_addr.from = S3C2410_PA_UART0 + S3C2410_URXH, + }, + [DMACH_UART1] = { + .name = "uart1", + .channels[1] = S3C2410_DCON_CH1_UART1 | DMA_CH_VALID, + .hw_addr.to = S3C2410_PA_UART1 + S3C2410_UTXH, + .hw_addr.from = S3C2410_PA_UART1 + S3C2410_URXH, + }, + [DMACH_UART2] = { + .name = "uart2", + .channels[3] = S3C2410_DCON_CH3_UART2 | DMA_CH_VALID, + .hw_addr.to = S3C2410_PA_UART2 + S3C2410_UTXH, + .hw_addr.from = S3C2410_PA_UART2 + S3C2410_URXH, + }, + [DMACH_TIMER] = { + .name = "timer", + .channels[0] = S3C2410_DCON_CH0_TIMER | DMA_CH_VALID, + .channels[2] = S3C2410_DCON_CH2_TIMER | DMA_CH_VALID, + .channels[3] = S3C2410_DCON_CH3_TIMER | DMA_CH_VALID, + }, + [DMACH_I2S_IN] = { + .name = "i2s-sdi", + .channels[1] = S3C2410_DCON_CH1_I2SSDI | DMA_CH_VALID, + .channels[2] = S3C2410_DCON_CH2_I2SSDI | DMA_CH_VALID, + .hw_addr.from = S3C2410_PA_IIS + S3C2410_IISFIFO, + }, + [DMACH_I2S_OUT] = { + .name = "i2s-sdo", + .channels[2] = S3C2410_DCON_CH2_I2SSDO | DMA_CH_VALID, + .hw_addr.to = S3C2410_PA_IIS + S3C2410_IISFIFO, + }, + [DMACH_USB_EP1] = { + .name = "usb-ep1", + .channels[0] = S3C2410_DCON_CH0_USBEP1 | DMA_CH_VALID, + }, + [DMACH_USB_EP2] = { + .name = "usb-ep2", + .channels[1] = S3C2410_DCON_CH1_USBEP2 | DMA_CH_VALID, + }, + [DMACH_USB_EP3] = { + .name = "usb-ep3", + .channels[2] = S3C2410_DCON_CH2_USBEP3 | DMA_CH_VALID, + }, + [DMACH_USB_EP4] = { + .name = "usb-ep4", + .channels[3] =S3C2410_DCON_CH3_USBEP4 | DMA_CH_VALID, + }, +}; + +static void s3c2410_dma_select(struct s3c2410_dma_chan *chan, + struct s3c24xx_dma_map *map) +{ + chan->dcon = map->channels[chan->number] & ~DMA_CH_VALID; +} + +static struct s3c24xx_dma_selection __initdata s3c2410_dma_sel = { + .select = s3c2410_dma_select, + .dcon_mask = 7 << 24, + .map = s3c2410_dma_mappings, + .map_size = ARRAY_SIZE(s3c2410_dma_mappings), +}; + +static int s3c2410_dma_add(struct sys_device *sysdev) +{ + return s3c24xx_dma_init_map(&s3c2410_dma_sel); +} + +static struct sysdev_driver s3c2410_dma_driver = { + .add = s3c2410_dma_add, +}; + +static int __init s3c2410_dma_init(void) +{ + return sysdev_driver_register(&s3c2410_sysclass, &s3c2410_dma_driver); +} + +arch_initcall(s3c2410_dma_init); + +/* S3C2442 DMA contains the same selection table as the S3C2410 */ + +static struct sysdev_driver s3c2442_dma_driver = { + .add = s3c2410_dma_add, +}; + +static int __init s3c2442_dma_init(void) +{ + return sysdev_driver_register(&s3c2442_sysclass, &s3c2442_dma_driver); +} + +arch_initcall(s3c2442_dma_init); + + diff -urNp linux-2.6.18-rc7/arch/arm/mach-s3c2410/s3c2410-irq.c linux-2.6.18-rc7-all1/arch/arm/mach-s3c2410/s3c2410-irq.c --- linux-2.6.18-rc7/arch/arm/mach-s3c2410/s3c2410-irq.c 1970-01-01 01:00:00.000000000 +0100 +++ linux-2.6.18-rc7-all1/arch/arm/mach-s3c2410/s3c2410-irq.c 2006-09-14 10:45:54.000000000 +0100 @@ -0,0 +1,48 @@ +/* linux/arch/arm/mach-s3c2410/s3c2410-irq.c + * + * Copyright (c) 2006 Simtec Electronics + * Ben Dooks + * + * 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 + * +*/ + +#include +#include +#include +#include +#include +#include + +#include "cpu.h" +#include "pm.h" + +static int s3c2410_irq_add(struct sys_device *sysdev) +{ + return 0; +} + +static struct sysdev_driver s3c2410_irq_driver = { + .add = s3c2410_irq_add, + .suspend = s3c24xx_irq_suspend, + .resume = s3c24xx_irq_resume, +}; + +static int s3c2410_irq_init(void) +{ + return sysdev_driver_register(&s3c2410_sysclass, &s3c2410_irq_driver); +} + +arch_initcall(s3c2410_irq_init); diff -urNp linux-2.6.18-rc7/arch/arm/mach-s3c2410/s3c2410-pm.c linux-2.6.18-rc7-all1/arch/arm/mach-s3c2410/s3c2410-pm.c --- linux-2.6.18-rc7/arch/arm/mach-s3c2410/s3c2410-pm.c 1970-01-01 01:00:00.000000000 +0100 +++ linux-2.6.18-rc7-all1/arch/arm/mach-s3c2410/s3c2410-pm.c 2006-09-14 10:45:54.000000000 +0100 @@ -0,0 +1,111 @@ +/* linux/arch/arm/mach-s3c2410/s3c2410-pm.c + * + * Copyright (c) 2006 Simtec Electronics + * Ben Dooks + * + * S3C2410 (and compatible) Power Manager (Suspend-To-RAM) support + * + * 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 +*/ + +#include +#include +#include +#include +#include + +#include +#include + +#include + +#include "cpu.h" +#include "pm.h" + +#ifdef CONFIG_S3C2410_PM_DEBUG +extern void pm_dbg(const char *fmt, ...); +#define DBG(fmt...) pm_dbg(fmt) +#else +#define DBG(fmt...) printk(KERN_DEBUG fmt) +#endif + +static void s3c2410_pm_prepare(void) +{ + /* ensure at least GSTATUS3 has the resume address */ + + __raw_writel(virt_to_phys(s3c2410_cpu_resume), S3C2410_GSTATUS3); + + DBG("GSTATUS3 0x%08x\n", __raw_readl(S3C2410_GSTATUS3)); + DBG("GSTATUS4 0x%08x\n", __raw_readl(S3C2410_GSTATUS4)); +} + +int s3c2410_pm_resume(struct sys_device *dev) +{ + unsigned long tmp; + + /* unset the return-from-sleep flag, to ensure reset */ + + tmp = __raw_readl(S3C2410_GSTATUS2); + tmp &= S3C2410_GSTATUS2_OFFRESET; + __raw_writel(tmp, S3C2410_GSTATUS2); + + return 0; +} + +static int s3c2410_pm_add(struct sys_device *dev) +{ + pm_cpu_prep = s3c2410_pm_prepare; + pm_cpu_sleep = s3c2410_cpu_suspend; + + return 0; +} + +static struct sysdev_driver s3c2410_pm_driver = { + .add = s3c2410_pm_add, + .resume = s3c2410_pm_resume, +}; + +/* register ourselves */ + +static int __init s3c2410_pm_drvinit(void) +{ + return sysdev_driver_register(&s3c2410_sysclass, &s3c2410_pm_driver); +} + +arch_initcall(s3c2410_pm_drvinit); + +static struct sysdev_driver s3c2440_pm_driver = { + .add = s3c2410_pm_add, + .resume = s3c2410_pm_resume, +}; + +static int __init s3c2440_pm_drvinit(void) +{ + return sysdev_driver_register(&s3c2440_sysclass, &s3c2440_pm_driver); +} + +arch_initcall(s3c2440_pm_drvinit); + +static struct sysdev_driver s3c2442_pm_driver = { + .add = s3c2410_pm_add, + .resume = s3c2410_pm_resume, +}; + +static int __init s3c2442_pm_drvinit(void) +{ + return sysdev_driver_register(&s3c2442_sysclass, &s3c2442_pm_driver); +} + +arch_initcall(s3c2442_pm_drvinit); diff -urNp linux-2.6.18-rc7/arch/arm/mach-s3c2410/s3c2410-sleep.S linux-2.6.18-rc7-all1/arch/arm/mach-s3c2410/s3c2410-sleep.S --- linux-2.6.18-rc7/arch/arm/mach-s3c2410/s3c2410-sleep.S 1970-01-01 01:00:00.000000000 +0100 +++ linux-2.6.18-rc7-all1/arch/arm/mach-s3c2410/s3c2410-sleep.S 2006-09-14 10:45:54.000000000 +0100 @@ -0,0 +1,68 @@ +/* linux/arch/arm/mach-s3c2410/s3c2410-sleep.S + * + * Copyright (c) 2004 Simtec Electronics + * Ben Dooks + * + * S3C2410 Power Manager (Suspend-To-RAM) support + * + * Based on PXA/SA1100 sleep code by: + * Nicolas Pitre, (c) 2002 Monta Vista Software Inc + * Cliff Brake, (c) 2001 + * + * 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 +*/ + +#include +#include +#include +#include + +#include +#include +#include +#include + + /* s3c2410_cpu_suspend + * + * put the cpu into sleep mode + */ + +ENTRY(s3c2410_cpu_suspend) + @@ prepare cpu to sleep + + ldr r4, =S3C2410_REFRESH + ldr r5, =S3C24XX_MISCCR + ldr r6, =S3C2410_CLKCON + ldr r7, [ r4 ] @ get REFRESH (and ensure in TLB) + ldr r8, [ r5 ] @ get MISCCR (and ensure in TLB) + ldr r9, [ r6 ] @ get CLKCON (and ensure in TLB) + + orr r7, r7, #S3C2410_REFRESH_SELF @ SDRAM sleep command + orr r8, r8, #S3C2410_MISCCR_SDSLEEP @ SDRAM power-down signals + orr r9, r9, #S3C2410_CLKCON_POWER @ power down command + + teq pc, #0 @ first as a trial-run to load cache + bl s3c2410_do_sleep + teq r0, r0 @ now do it for real + b s3c2410_do_sleep @ + + @@ align next bit of code to cache line + .align 8 +s3c2410_do_sleep: + streq r7, [ r4 ] @ SDRAM sleep command + streq r8, [ r5 ] @ SDRAM power-down config + streq r9, [ r6 ] @ CPU sleep +1: beq 1b + mov pc, r14 diff -urNp linux-2.6.18-rc7/arch/arm/mach-s3c2410/s3c2412-dma.c linux-2.6.18-rc7-all1/arch/arm/mach-s3c2410/s3c2412-dma.c --- linux-2.6.18-rc7/arch/arm/mach-s3c2410/s3c2412-dma.c 1970-01-01 01:00:00.000000000 +0100 +++ linux-2.6.18-rc7-all1/arch/arm/mach-s3c2410/s3c2412-dma.c 2006-09-14 10:45:54.000000000 +0100 @@ -0,0 +1,148 @@ +/* linux/arch/arm/mach-s3c2410/s3c2412-dma.c + * + * (c) 2006 Simtec Electronics + * Ben Dooks + * + * S3C2412 DMA selection + * + * http://armlinux.simtec.co.uk/ + * + * 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 "dma.h" +#include "cpu.h" + +#include +#include +#include +#include +#include +#include +#include +#include + +#define MAP(x) { (x)| DMA_CH_VALID, (x)| DMA_CH_VALID, (x)| DMA_CH_VALID, (x)| DMA_CH_VALID } + +static struct s3c24xx_dma_map __initdata s3c2412_dma_mappings[] = { + [DMACH_XD0] = { + .name = "xdreq0", + .channels = MAP(S3C2412_DMAREQSEL_XDREQ0), + }, + [DMACH_XD1] = { + .name = "xdreq1", + .channels = MAP(S3C2412_DMAREQSEL_XDREQ1), + }, + [DMACH_SDI] = { + .name = "sdi", + .channels = MAP(S3C2412_DMAREQSEL_SDI), + .hw_addr.to = S3C2410_PA_IIS + S3C2410_IISFIFO, + .hw_addr.from = S3C2410_PA_IIS + S3C2410_IISFIFO, + }, + [DMACH_SPI0] = { + .name = "spi0", + .channels = MAP(S3C2412_DMAREQSEL_SPI0TX), + .hw_addr.to = S3C2410_PA_SPI + S3C2410_SPTDAT, + .hw_addr.from = S3C2410_PA_SPI + S3C2410_SPRDAT, + }, + [DMACH_SPI1] = { + .name = "spi1", + .channels = MAP(S3C2412_DMAREQSEL_SPI1TX), + .hw_addr.to = S3C2410_PA_SPI + 0x20 + S3C2410_SPTDAT, + .hw_addr.from = S3C2410_PA_SPI + 0x20 + S3C2410_SPRDAT, + }, + [DMACH_UART0] = { + .name = "uart0", + .hw_addr.to = S3C2410_PA_UART0 + S3C2410_UTXH, + .hw_addr.from = S3C2410_PA_UART0 + S3C2410_URXH, + }, + [DMACH_UART1] = { + .name = "uart1", + .hw_addr.to = S3C2410_PA_UART1 + S3C2410_UTXH, + .hw_addr.from = S3C2410_PA_UART1 + S3C2410_URXH, + }, + [DMACH_UART2] = { + .name = "uart2", + .hw_addr.to = S3C2410_PA_UART2 + S3C2410_UTXH, + .hw_addr.from = S3C2410_PA_UART2 + S3C2410_URXH, + }, + [DMACH_TIMER] = { + .name = "timer", + .channels = MAP(S3C2412_DMAREQSEL_TIMER), + }, + [DMACH_I2S_IN] = { + .name = "i2s-sdi", + .channels = MAP(S3C2412_DMAREQSEL_I2SRX), + .hw_addr.from = S3C2410_PA_IIS + S3C2410_IISFIFO, + }, + [DMACH_I2S_OUT] = { + .name = "i2s-sdo", + .channels = MAP(S3C2412_DMAREQSEL_I2STX), + .hw_addr.to = S3C2410_PA_IIS + S3C2410_IISFIFO, + }, + [DMACH_PCM_IN] = { + .name = "pcm-in", + }, + [DMACH_PCM_OUT] = { + .name = "pcm-out", + }, + [DMACH_MIC_IN] = { + .name = "mic-in", + }, + [DMACH_USB_EP1] = { + .name = "usb-ep1", + .channels = MAP(S3C2412_DMAREQSEL_USBEP1), + }, + [DMACH_USB_EP2] = { + .name = "usb-ep2", + .channels = MAP(S3C2412_DMAREQSEL_USBEP2), + }, + [DMACH_USB_EP3] = { + .name = "usb-ep3", + .channels = MAP(S3C2412_DMAREQSEL_USBEP3), + }, + [DMACH_USB_EP4] = { + .name = "usb-ep4", + .channels = MAP(S3C2412_DMAREQSEL_USBEP4), + }, +}; + +static void s3c2412_dma_select(struct s3c2410_dma_chan *chan, + struct s3c24xx_dma_map *map) +{ + writel(chan->regs + S3C2412_DMA_DMAREQSEL, + map->channels[0] | S3C2412_DMAREQSEL_HW); +} + +static struct s3c24xx_dma_selection __initdata s3c2412_dma_sel = { + .select = s3c2412_dma_select, + .dcon_mask = 0, + .map = s3c2412_dma_mappings, + .map_size = ARRAY_SIZE(s3c2412_dma_mappings), +}; + +static int s3c2412_dma_add(struct sys_device *sysdev) +{ + return s3c24xx_dma_init_map(&s3c2412_dma_sel); +} + +static struct sysdev_driver s3c2412_dma_driver = { + .add = s3c2412_dma_add, +}; + +static int __init s3c2412_dma_init(void) +{ + return sysdev_driver_register(&s3c2412_sysclass, &s3c2412_dma_driver); +} + +arch_initcall(s3c2412_dma_init); diff -urNp linux-2.6.18-rc7/arch/arm/mach-s3c2410/s3c2412-irq.c linux-2.6.18-rc7-all1/arch/arm/mach-s3c2410/s3c2412-irq.c --- linux-2.6.18-rc7/arch/arm/mach-s3c2410/s3c2412-irq.c 2006-09-14 09:47:06.000000000 +0100 +++ linux-2.6.18-rc7-all1/arch/arm/mach-s3c2410/s3c2412-irq.c 2006-09-14 10:45:54.000000000 +0100 @@ -37,6 +37,7 @@ #include "cpu.h" #include "irq.h" +#include "pm.h" /* the s3c2412 changes the behaviour of IRQ_EINT0 through IRQ_EINT3 by * having them turn up in both the INT* and the EINT* registers. Whilst @@ -120,6 +121,8 @@ static int s3c2412_irq_add(struct sys_de static struct sysdev_driver s3c2412_irq_driver = { .add = s3c2412_irq_add, + .suspend = s3c24xx_irq_suspend, + .resume = s3c24xx_irq_resume, }; static int s3c2412_irq_init(void) diff -urNp linux-2.6.18-rc7/arch/arm/mach-s3c2410/s3c2412.c linux-2.6.18-rc7-all1/arch/arm/mach-s3c2410/s3c2412.c --- linux-2.6.18-rc7/arch/arm/mach-s3c2410/s3c2412.c 2006-09-14 09:47:06.000000000 +0100 +++ linux-2.6.18-rc7-all1/arch/arm/mach-s3c2410/s3c2412.c 2006-09-14 10:45:54.000000000 +0100 @@ -35,11 +35,15 @@ #include #include +#include #include #include +#include + #include #include +#include #include #include #include @@ -75,6 +79,27 @@ void __init s3c2412_init_uarts(struct s3 s3c_device_nand.name = "s3c2412-nand"; } +/* s3c2412_idle + * + * use the standard idle call by ensuring the idle mode + * in power config, then issuing the idle co-processor + * instruction +*/ + +static void s3c2412_idle(void) +{ + unsigned long tmp; + + /* ensure our idle mode is to go to idle */ + + tmp = __raw_readl(S3C2412_PWRCFG); + tmp &= ~S3C2412_PWRCFG_STANDBYWFI_MASK; + tmp |= S3C2412_PWRCFG_STANDBYWFI_IDLE; + __raw_writel(tmp, S3C2412_PWRCFG); + + cpu_do_idle(); +} + /* s3c2412_map_io * * register the standard cpu IO areas, and any passed in from the @@ -87,6 +112,10 @@ void __init s3c2412_map_io(struct map_de s3c24xx_va_gpio2 = S3C24XX_VA_GPIO + 0x10; + /* set our idle function */ + + s3c24xx_idle = s3c2412_idle; + /* register our io-tables */ iotable_init(s3c2412_iodesc, ARRAY_SIZE(s3c2412_iodesc)); diff -urNp linux-2.6.18-rc7/arch/arm/mach-s3c2410/s3c2440-dma.c linux-2.6.18-rc7-all1/arch/arm/mach-s3c2410/s3c2440-dma.c --- linux-2.6.18-rc7/arch/arm/mach-s3c2410/s3c2440-dma.c 1970-01-01 01:00:00.000000000 +0100 +++ linux-2.6.18-rc7-all1/arch/arm/mach-s3c2410/s3c2440-dma.c 2006-09-14 10:45:54.000000000 +0100 @@ -0,0 +1,164 @@ +/* linux/arch/arm/mach-s3c2410/s3c2440-dma.c + * + * (c) 2006 Simtec Electronics + * Ben Dooks + * + * S3C2440 DMA selection + * + * http://armlinux.simtec.co.uk/ + * + * 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 "dma.h" + +#include "cpu.h" + +#include +#include +#include +#include +#include +#include +#include +#include + +static struct s3c24xx_dma_map __initdata s3c2440_dma_mappings[] = { + [DMACH_XD0] = { + .name = "xdreq0", + .channels[0] = S3C2410_DCON_CH0_XDREQ0 | DMA_CH_VALID, + }, + [DMACH_XD1] = { + .name = "xdreq1", + .channels[1] = S3C2410_DCON_CH1_XDREQ1 | DMA_CH_VALID, + }, + [DMACH_SDI] = { + .name = "sdi", + .channels[0] = S3C2410_DCON_CH0_SDI | DMA_CH_VALID, + .channels[1] = S3C2440_DCON_CH1_SDI | DMA_CH_VALID, + .channels[2] = S3C2410_DCON_CH2_SDI | DMA_CH_VALID, + .channels[3] = S3C2410_DCON_CH3_SDI | DMA_CH_VALID, + .hw_addr.to = S3C2410_PA_IIS + S3C2410_IISFIFO, + .hw_addr.from = S3C2410_PA_IIS + S3C2410_IISFIFO, + }, + [DMACH_SPI0] = { + .name = "spi0", + .channels[1] = S3C2410_DCON_CH1_SPI | DMA_CH_VALID, + .hw_addr.to = S3C2410_PA_SPI + S3C2410_SPTDAT, + .hw_addr.from = S3C2410_PA_SPI + S3C2410_SPRDAT, + }, + [DMACH_SPI1] = { + .name = "spi1", + .channels[3] = S3C2410_DCON_CH3_SPI | DMA_CH_VALID, + .hw_addr.to = S3C2410_PA_SPI + 0x20 + S3C2410_SPTDAT, + .hw_addr.from = S3C2410_PA_SPI + 0x20 + S3C2410_SPRDAT, + }, + [DMACH_UART0] = { + .name = "uart0", + .channels[0] = S3C2410_DCON_CH0_UART0 | DMA_CH_VALID, + .hw_addr.to = S3C2410_PA_UART0 + S3C2410_UTXH, + .hw_addr.from = S3C2410_PA_UART0 + S3C2410_URXH, + }, + [DMACH_UART1] = { + .name = "uart1", + .channels[1] = S3C2410_DCON_CH1_UART1 | DMA_CH_VALID, + .hw_addr.to = S3C2410_PA_UART1 + S3C2410_UTXH, + .hw_addr.from = S3C2410_PA_UART1 + S3C2410_URXH, + }, + [DMACH_UART2] = { + .name = "uart2", + .channels[3] = S3C2410_DCON_CH3_UART2 | DMA_CH_VALID, + .hw_addr.to = S3C2410_PA_UART2 + S3C2410_UTXH, + .hw_addr.from = S3C2410_PA_UART2 + S3C2410_URXH, + }, + [DMACH_TIMER] = { + .name = "timer", + .channels[0] = S3C2410_DCON_CH0_TIMER | DMA_CH_VALID, + .channels[2] = S3C2410_DCON_CH2_TIMER | DMA_CH_VALID, + .channels[3] = S3C2410_DCON_CH3_TIMER | DMA_CH_VALID, + }, + [DMACH_I2S_IN] = { + .name = "i2s-sdi", + .channels[1] = S3C2410_DCON_CH1_I2SSDI | DMA_CH_VALID, + .channels[2] = S3C2410_DCON_CH2_I2SSDI | DMA_CH_VALID, + .hw_addr.from = S3C2410_PA_IIS + S3C2410_IISFIFO, + }, + [DMACH_I2S_OUT] = { + .name = "i2s-sdo", + .channels[0] = S3C2440_DCON_CH0_I2SSDO | DMA_CH_VALID, + .channels[2] = S3C2410_DCON_CH2_I2SSDO | DMA_CH_VALID, + .hw_addr.to = S3C2410_PA_IIS + S3C2410_IISFIFO, + }, + [DMACH_PCM_IN] = { + .name = "pcm-in", + .channels[0] = S3C2440_DCON_CH0_PCMIN | DMA_CH_VALID, + .channels[2] = S3C2440_DCON_CH2_PCMIN | DMA_CH_VALID, + .hw_addr.from = S3C2440_PA_AC97 + S3C_AC97_PCM_DATA, + }, + [DMACH_PCM_OUT] = { + .name = "pcm-out", + .channels[1] = S3C2440_DCON_CH1_PCMOUT | DMA_CH_VALID, + .channels[3] = S3C2440_DCON_CH3_PCMOUT | DMA_CH_VALID, + .hw_addr.to = S3C2440_PA_AC97 + S3C_AC97_PCM_DATA, + }, + [DMACH_MIC_IN] = { + .name = "mic-in", + .channels[2] = S3C2440_DCON_CH2_MICIN | DMA_CH_VALID, + .channels[3] = S3C2440_DCON_CH3_MICIN | DMA_CH_VALID, + .hw_addr.from = S3C2440_PA_AC97 + S3C_AC97_MIC_DATA, + }, + [DMACH_USB_EP1] = { + .name = "usb-ep1", + .channels[0] = S3C2410_DCON_CH0_USBEP1 | DMA_CH_VALID, + }, + [DMACH_USB_EP2] = { + .name = "usb-ep2", + .channels[1] = S3C2410_DCON_CH1_USBEP2 | DMA_CH_VALID, + }, + [DMACH_USB_EP3] = { + .name = "usb-ep3", + .channels[2] = S3C2410_DCON_CH2_USBEP3 | DMA_CH_VALID, + }, + [DMACH_USB_EP4] = { + .name = "usb-ep4", + .channels[3] = S3C2410_DCON_CH3_USBEP4 | DMA_CH_VALID, + }, +}; + +static void s3c2440_dma_select(struct s3c2410_dma_chan *chan, + struct s3c24xx_dma_map *map) +{ + chan->dcon = map->channels[chan->number] & ~DMA_CH_VALID; +} + +static struct s3c24xx_dma_selection __initdata s3c2440_dma_sel = { + .select = s3c2440_dma_select, + .dcon_mask = 7 << 24, + .map = s3c2440_dma_mappings, + .map_size = ARRAY_SIZE(s3c2440_dma_mappings), +}; + +static int s3c2440_dma_add(struct sys_device *sysdev) +{ + return s3c24xx_dma_init_map(&s3c2440_dma_sel); +} + +static struct sysdev_driver s3c2440_dma_driver = { + .add = s3c2440_dma_add, +}; + +static int __init s3c2440_dma_init(void) +{ + return sysdev_driver_register(&s3c2440_sysclass, &s3c2440_dma_driver); +} + +arch_initcall(s3c2440_dma_init); + diff -urNp linux-2.6.18-rc7/arch/arm/mach-s3c2410/s3c2440-irq.c linux-2.6.18-rc7-all1/arch/arm/mach-s3c2410/s3c2440-irq.c --- linux-2.6.18-rc7/arch/arm/mach-s3c2410/s3c2440-irq.c 2006-09-14 09:47:06.000000000 +0100 +++ linux-2.6.18-rc7-all1/arch/arm/mach-s3c2410/s3c2440-irq.c 2006-09-14 10:45:54.000000000 +0100 @@ -119,7 +119,7 @@ static int s3c2440_irq_add(struct sys_de } static struct sysdev_driver s3c2440_irq_driver = { - .add = s3c2440_irq_add, + .add = s3c2440_irq_add, }; static int s3c2440_irq_init(void) diff -urNp linux-2.6.18-rc7/arch/arm/mach-s3c2410/s3c244x-irq.c linux-2.6.18-rc7-all1/arch/arm/mach-s3c2410/s3c244x-irq.c --- linux-2.6.18-rc7/arch/arm/mach-s3c2410/s3c244x-irq.c 2006-09-14 09:47:06.000000000 +0100 +++ linux-2.6.18-rc7-all1/arch/arm/mach-s3c2410/s3c244x-irq.c 2006-09-14 10:45:54.000000000 +0100 @@ -120,7 +120,9 @@ static int s3c244x_irq_add(struct sys_de } static struct sysdev_driver s3c2440_irq_driver = { - .add = s3c244x_irq_add, + .add = s3c244x_irq_add, + .suspend = s3c24xx_irq_suspend, + .resume = s3c24xx_irq_resume, }; static int s3c2440_irq_init(void) @@ -131,9 +133,12 @@ static int s3c2440_irq_init(void) arch_initcall(s3c2440_irq_init); static struct sysdev_driver s3c2442_irq_driver = { - .add = s3c244x_irq_add, + .add = s3c244x_irq_add, + .suspend = s3c24xx_irq_suspend, + .resume = s3c24xx_irq_resume, }; + static int s3c2442_irq_init(void) { return sysdev_driver_register(&s3c2442_sysclass, &s3c2442_irq_driver); diff -urNp linux-2.6.18-rc7/arch/arm/mach-s3c2410/sleep.S linux-2.6.18-rc7-all1/arch/arm/mach-s3c2410/sleep.S --- linux-2.6.18-rc7/arch/arm/mach-s3c2410/sleep.S 2006-09-14 09:47:06.000000000 +0100 +++ linux-2.6.18-rc7-all1/arch/arm/mach-s3c2410/sleep.S 2006-09-14 10:45:54.000000000 +0100 @@ -41,15 +41,25 @@ .text - /* s3c2410_cpu_suspend + /* s3c2410_cpu_save * - * put the cpu into sleep mode + * save enough of the CPU state to allow us to re-start + * pm.c code. as we store items like the sp/lr, we will + * end up returning from this function when the cpu resumes + * so the return value is set to mark this. + * + * This arangement means we avoid having to flush the cache + * from this code. * * entry: - * r0 = sleep save block + * r0 = pointer to save block + * + * exit: + * r0 = 0 => we stored everything + * 1 => resumed from sleep */ -ENTRY(s3c2410_cpu_suspend) +ENTRY(s3c2410_cpu_save) stmfd sp!, { r4 - r12, lr } @@ store co-processor registers @@ -62,44 +72,15 @@ ENTRY(s3c2410_cpu_suspend) stmia r0, { r4 - r13 } - @@ flush the caches to ensure everything is back out to - @@ SDRAM before the core powers down - -#ifndef CONFIG_CPU_DCACHE_WRITETHROUGH - bl arm920_flush_kern_cache_all -#endif - - @@ prepare cpu to sleep - - ldr r4, =S3C2410_REFRESH - ldr r5, =S3C24XX_MISCCR - ldr r6, =S3C2410_CLKCON - ldr r7, [ r4 ] @ get REFRESH (and ensure in TLB) - ldr r8, [ r5 ] @ get MISCCR (and ensure in TLB) - ldr r9, [ r6 ] @ get CLKCON (and ensure in TLB) - - orr r7, r7, #S3C2410_REFRESH_SELF @ SDRAM sleep command - orr r8, r8, #S3C2410_MISCCR_SDSLEEP @ SDRAM power-down signals - orr r9, r9, #S3C2410_CLKCON_POWER @ power down command - - teq pc, #0 @ first as a trial-run to load cache - bl s3c2410_do_sleep - teq r0, r0 @ now do it for real - b s3c2410_do_sleep @ - - @@ align next bit of code to cache line - .align 8 -s3c2410_do_sleep: - streq r7, [ r4 ] @ SDRAM sleep command - streq r8, [ r5 ] @ SDRAM power-down config - streq r9, [ r6 ] @ CPU sleep -1: beq 1b - mov pc, r14 + mov r0, #0 + ldmfd sp, { r4 - r12, pc } + @@ return to the caller, after having the MMU @@ turned on, this restores the last bits from the @@ stack resume_with_mmu: + mov r0, #1 ldmfd sp!, { r4 - r12, pc } .ltorg diff -urNp linux-2.6.18-rc7/drivers/char/watchdog/s3c2410_wdt.c linux-2.6.18-rc7-all1/drivers/char/watchdog/s3c2410_wdt.c --- linux-2.6.18-rc7/drivers/char/watchdog/s3c2410_wdt.c 2006-09-14 09:47:08.000000000 +0100 +++ linux-2.6.18-rc7-all1/drivers/char/watchdog/s3c2410_wdt.c 2006-09-14 10:45:54.000000000 +0100 @@ -62,7 +62,7 @@ #define CONFIG_S3C2410_WATCHDOG_ATBOOT (0) #define CONFIG_S3C2410_WATCHDOG_DEFAULT_TIME (15) -static int nowayout = WATCHDOG_NOWAYOUT; +static int nowayout = WATCHDOG_NOWAYOUT; static int tmr_margin = CONFIG_S3C2410_WATCHDOG_DEFAULT_TIME; static int tmr_atboot = CONFIG_S3C2410_WATCHDOG_ATBOOT; static int soft_noboot = 0; @@ -213,11 +213,10 @@ static int s3c2410wdt_open(struct inode if(down_trylock(&open_lock)) return -EBUSY; - if (nowayout) { + if (nowayout) __module_get(THIS_MODULE); - } else { - allow_close = CLOSE_STATE_ALLOW; - } + + allow_close = CLOSE_STATE_NOT; /* start the timer */ s3c2410wdt_start(); @@ -230,6 +229,7 @@ static int s3c2410wdt_release(struct ino * Shut off the timer. * Lock it in if it's a module and we set nowayout */ + if (allow_close == CLOSE_STATE_ALLOW) { s3c2410wdt_stop(); } else { diff -urNp linux-2.6.18-rc7/include/asm-arm/arch-s3c2410/map.h linux-2.6.18-rc7-all1/include/asm-arm/arch-s3c2410/map.h --- linux-2.6.18-rc7/include/asm-arm/arch-s3c2410/map.h 2006-09-14 09:47:12.000000000 +0100 +++ linux-2.6.18-rc7-all1/include/asm-arm/arch-s3c2410/map.h 2006-09-14 10:45:54.000000000 +0100 @@ -160,6 +160,11 @@ #define S3C2440_PA_CAMIF (0x4F000000) #define S3C2440_SZ_CAMIF SZ_1M +/* AC97 */ + +#define S3C2440_PA_AC97 (0x5B000000) +#define S3C2440_SZ_AC97 SZ_1M + /* ISA style IO, for each machine to sort out mappings for, if it * implements it. We reserve two 16M regions for ISA. */ diff -urNp linux-2.6.18-rc7/include/asm-arm/arch-s3c2410/regs-ac97.h linux-2.6.18-rc7-all1/include/asm-arm/arch-s3c2410/regs-ac97.h --- linux-2.6.18-rc7/include/asm-arm/arch-s3c2410/regs-ac97.h 1970-01-01 01:00:00.000000000 +0100 +++ linux-2.6.18-rc7-all1/include/asm-arm/arch-s3c2410/regs-ac97.h 2006-09-14 10:45:54.000000000 +0100 @@ -0,0 +1,23 @@ +/* linux/include/asm-arm/arch-s3c2410/regs-ac97.h + * + * Copyright (c) 2006 Simtec Electronics + * http://www.simtec.co.uk/products/SWLINUX/ + * + * 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. + * + * S3C2440 AC97 Controller +*/ + +#ifndef __ASM_ARCH_REGS_AC97_H +#define __ASM_ARCH_REGS_AC97_H __FILE__ + +#define S3C_AC97_GLBCTRL (0x00) +#define S3C_AC97_GLBSTAT (0x04) +#define S3C_AC97_CODEC_CMD (0x08) +#define S3C_AC97_PCM_ADDR (0x10) +#define S3C_AC97_PCM_DATA (0x18) +#define S3C_AC97_MIC_DATA (0x1C) + +#endif /* __ASM_ARCH_REGS_AC97_H */ diff -urNp linux-2.6.18-rc7/include/asm-arm/arch-s3c2410/regs-lcd.h linux-2.6.18-rc7-all1/include/asm-arm/arch-s3c2410/regs-lcd.h --- linux-2.6.18-rc7/include/asm-arm/arch-s3c2410/regs-lcd.h 2006-09-14 09:47:12.000000000 +0100 +++ linux-2.6.18-rc7-all1/include/asm-arm/arch-s3c2410/regs-lcd.h 2006-09-14 10:45:54.000000000 +0100 @@ -63,6 +63,8 @@ #define S3C2410_LCDCON3_GET_HBPD(x) ( ((x) >> 19) & 0x7F) #define S3C2410_LCDCON3_GET_HFPD(x) ( ((x) >> 0) & 0xFF) +/* LDCCON4 changes for STN mode on the S3C2412 */ + #define S3C2410_LCDCON4_MVAL(x) ((x) << 8) #define S3C2410_LCDCON4_HSPW(x) ((x) << 0) #define S3C2410_LCDCON4_WLH(x) ((x) << 0) @@ -113,10 +115,38 @@ #define S3C2410_LCDINT_FRSYNC (1<<1) #define S3C2410_LCDINT_FICNT (1<<0) +/* s3c2442 extra stn registers */ + +#define S3C2442_REDLUT S3C2410_LCDREG(0x20) +#define S3C2442_GREENLUT S3C2410_LCDREG(0x24) +#define S3C2442_BLUELUT S3C2410_LCDREG(0x28) +#define S3C2442_DITHMODE S3C2410_LCDREG(0x20) + #define S3C2410_LPCSEL S3C2410_LCDREG(0x60) #define S3C2410_TFTPAL(x) S3C2410_LCDREG((0x400 + (x)*4)) +/* S3C2412 registers */ + +#define S3C2412_TPAL S3C2410_LCDREG(0x20) + +#define S3C2412_LCDINTPND S3C2410_LCDREG(0x24) +#define S3C2412_LCDSRCPND S3C2410_LCDREG(0x28) +#define S3C2412_LCDINTMSK S3C2410_LCDREG(0x2C) + +#define S3C2412_TCONSEL S3C2410_LCDREG(0x30) + +#define S3C2412_LCDCON6 S3C2410_LCDREG(0x34) +#define S3C2412_LCDCON7 S3C2410_LCDREG(0x38) +#define S3C2412_LCDCON8 S3C2410_LCDREG(0x3C) +#define S3C2412_LCDCON9 S3C2410_LCDREG(0x40) + +#define S3C2412_REDLUT(x) S3C2410_LCDREG(0x44 + ((x)*4)) +#define S3C2412_GREENLUT(x) S3C2410_LCDREG(0x60 + ((x)*4)) +#define S3C2412_BLUELUT(x) S3C2410_LCDREG(0x98 + ((x)*4)) + +#define S3C2412_FRCPAT(x) S3C2410_LCDREG(0xB4 + ((x)*4)) + #endif /* ___ASM_ARCH_REGS_LCD_H */ diff -urNp linux-2.6.18-rc7/include/asm-arm/arch-s3c2410/regs-power.h linux-2.6.18-rc7-all1/include/asm-arm/arch-s3c2410/regs-power.h --- linux-2.6.18-rc7/include/asm-arm/arch-s3c2410/regs-power.h 1970-01-01 01:00:00.000000000 +0100 +++ linux-2.6.18-rc7-all1/include/asm-arm/arch-s3c2410/regs-power.h 2006-09-14 10:45:54.000000000 +0100 @@ -0,0 +1,34 @@ +/* linux/include/asm/arch-s3c2410/regs-power.h + * + * Copyright (c) 2003,2004,2005,2006 Simtec Electronics + * http://armlinux.simtec.co.uk/ + * + * 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. + * + * S3C24XX power control register definitions +*/ + +#ifndef __ASM_ARM_REGS_PWR +#define __ASM_ARM_REGS_PWR __FILE__ + +#define S3C24XX_PWRREG(x) ((x) + S3C24XX_VA_CLKPWR) + +#define S3C2412_PWRMODECON S3C24XX_PWRREG(0x20) +#define S3C2412_PWRCFG S3C24XX_PWRREG(0x24) + +#define S3C2412_PWRCFG_BATF_IGNORE (0<<0) +#define S3C2412_PWRCFG_BATF_SLEEP (3<<0) +#define S3C2412_PWRCFG_BATF_MASK (3<<0) + +#define S3C2412_PWRCFG_STANDBYWFI_IGNORE (0<<6) +#define S3C2412_PWRCFG_STANDBYWFI_IDLE (1<<6) +#define S3C2412_PWRCFG_STANDBYWFI_STOP (2<<6) +#define S3C2412_PWRCFG_STANDBYWFI_SLEEP (3<<6) +#define S3C2412_PWRCFG_STANDBYWFI_MASK (3<<6) + +#define S3C2412_PWRCFG_RTC_MASKIRQ (1<<8) +#define S3C2412_PWRCFG_NAND_NORST (1<<9) + +#endif /* __ASM_ARM_REGS_PWR */