The patch titled via-sdmmc: VIA MSP card reader driver support has been removed from the -mm tree. Its filename was via-sdmmc-via-msp-card-reader-driver-support.patch This patch was dropped because an updated version will be merged The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/ ------------------------------------------------------ Subject: via-sdmmc: VIA MSP card reader driver support From: Joseph Chan <josephchan@xxxxxxxxxx> Provide VIA MSP SD/MMC card reader driver support. Special thanks for Arnd's suggestions and help. Signed-off-by: Joseph Chan <josephchan@xxxxxxxxxx> Acked-by: Arnd Bergmann <arnd@xxxxxxxx> Cc: Ben Dooks <ben-linux@xxxxxxxxx> Cc: Pierre Ossman <drzeus-mmc@xxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- drivers/mmc/host/Kconfig | 12 drivers/mmc/host/Makefile | 1 drivers/mmc/host/via-sdmmc.c | 1346 +++++++++++++++++++++++++++++++++ 3 files changed, 1359 insertions(+) diff -puN drivers/mmc/host/Kconfig~via-sdmmc-via-msp-card-reader-driver-support drivers/mmc/host/Kconfig --- a/drivers/mmc/host/Kconfig~via-sdmmc-via-msp-card-reader-driver-support +++ a/drivers/mmc/host/Kconfig @@ -212,3 +212,15 @@ config MMC_TMIO help This provides support for the SD/MMC cell found in TC6393XB, T7L66XB and also ipaq ASIC3 + +config MMC_VIA_SDMMC + tristate "VIA SD/MMC Card Reader driver" + depends on PCI && EXPERIMENTAL + help + This selects the VIA SD/MMC Card Reader driver, say Y or M here. + VIA provides one multi-functional card reader which integrated into + some motherboards manufactured by VIA. This card reader supports + SD/MMC/SDHC. + If you have a controller with this interface, say Y or M here. + + If unsure, say N. diff -puN drivers/mmc/host/Makefile~via-sdmmc-via-msp-card-reader-driver-support drivers/mmc/host/Makefile --- a/drivers/mmc/host/Makefile~via-sdmmc-via-msp-card-reader-driver-support +++ a/drivers/mmc/host/Makefile @@ -27,4 +27,5 @@ endif obj-$(CONFIG_MMC_S3C) += s3cmci.o obj-$(CONFIG_MMC_SDRICOH_CS) += sdricoh_cs.o obj-$(CONFIG_MMC_TMIO) += tmio_mmc.o +obj-$(CONFIG_MMC_VIA_SDMMC) += via-sdmmc.o diff -puN /dev/null drivers/mmc/host/via-sdmmc.c --- /dev/null +++ a/drivers/mmc/host/via-sdmmc.c @@ -0,0 +1,1346 @@ +/* + * drivers/mmc/host/via-sdmmc.c - VIA SD/MMC Card Reader driver + * Copyright (c) 2008, VIA Technologies Inc. All Rights Reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or (at + * your option) any later version. + */ + +#include <linux/pci.h> +#include <linux/dma-mapping.h> +#include <linux/highmem.h> +#include <linux/delay.h> +#include <linux/mmc/card.h> +#include <linux/mmc/mmc.h> +#include <linux/mmc/sd.h> +#include <linux/mmc/host.h> + +#define DEV_NULL 0 +#define DEV_SDC 1 +#define DEV_CEATA 2 +#define DEV_MSC 4 +#define DEV_XDC 8 + +#define NFC_OFFSET 0x0 +#define MSC_OFFSET 0x100 +#define SDC_OFFSET 0x200 +#define CEA_OFFSET 0x300 +#define DDMA_OFFSET 0x400 +#define CICH_OFFSET 0x500 +#define PCICTRL_OFFSET 0x600 + +enum DMA_DIRECTION { + CARD_TO_MEM, + MEM_TO_CARD +}; + +enum PCI_HOST_CLK_CONTROL { + PCI_CLK_375K = 0x03, + PCI_CLK_8M = 0x04, + PCI_CLK_12M = 0x00, + PCI_CLK_16M = 0x05, + PCI_CLK_24M = 0x01, + PCI_CLK_33M = 0x06, + PCI_CLK_48M = 0x02 +}; + +/* + * PCI registers + */ + +#define PCI_WORK_MODE 0x40 +#define PCI_DEBUG_MODE 0x41 + +/* + * SDC MMIO Registers + */ + +#define SDCONTROL_REG 0x0 +#define SDCMDARG_REG 0x4 + +#define SDBUSMODE_REG 0x8 +#define SD_MODE_SPI 0x01 +#define SD_MODE_4BIT 0x02 +#define SD_MODE_RW 0x04 +#define SD_MODE_SPICRC 0x08 +#define SD_MODE_CST 0x10 +#define SD_MODE_SPICS 0x20 +#define SD_MODE_SDPWR 0x40 +#define SD_MODE_SFTRST 0x80 + +#define SDBLKLEN_REG 0xc +#define SD_BLKLEN_CRCSTP 0x0800 +#define SD_BLKLEN_DETPOL 0x1000 +#define SD_BLKLEN_GPIDET 0x2000 +#define SD_BLKLEN_DT3DET 0x4000 +#define SD_BLKLEN_INTEN 0x8000 + +#define SDRESP0_REG 0x10 +#define SDRESP1_REG 0x14 +#define SDRESP2_REG 0x18 +#define SDRESP3_REG 0x1c +#define SDCURBLKCNT_REG 0x20 + +#define SDINTMASK_REG 0x24 +#define SD_INTMASK_BDIE 0x10 +#define SD_INTMASK_DDIE 0x20 +#define SD_INTMASK_CDIE 0x40 +#define SD_INTMASK_SIIE 0x80 +#define SD_INTMASK_IOIE 0x100 +#define SD_INTMASK_CRIE 0x200 +#define SD_INTMASK_RAIE 0x400 +#define SD_INTMASK_PDIE 0x800 +#define SD_INTMASK_DTIE 0x1000 +#define SD_INTMASK_SCIE 0x2000 +#define SD_INTMASK_RCIE 0x4000 +#define SD_INTMASK_WCIE 0x8000 +#define SD_ACTIVE_INTMASK \ + (SD_INTMASK_BDIE | SD_INTMASK_SIIE | SD_INTMASK_CRIE \ + | SD_INTMASK_RAIE | SD_INTMASK_DTIE | SD_INTMASK_SCIE \ + | SD_INTMASK_RCIE | SD_INTMASK_WCIE) + +#define SDSTATUS_REG 0x28 +#define SD_STS_CECC 0x01 +#define SD_STS_WP 0x02 +#define SD_STS_SLOTD 0x04 +#define SD_STS_SLOTG 0x08 +#define SD_STS_BD 0x10 +#define SD_STS_DD 0x20 +#define SD_STS_CD 0x40 +#define SD_STS_SI 0x80 +#define SD_STS_IO 0x100 +#define SD_STS_CR 0x200 +#define SD_STS_RA 0x400 +#define SD_STS_PD 0x800 +#define SD_STS_DT 0x1000 +#define SD_STS_SC 0x2000 +#define SD_STS_RC 0x4000 +#define SD_STS_WC 0x8000 +#define SD_STS_IGN_MASK\ + (SD_STS_DD | SD_STS_PD | SD_STS_IO) +#define SD_STS_INT_MASK \ + (SD_STS_BD | SD_STS_DD | SD_STS_CD | SD_STS_SI \ + | SD_STS_IO | SD_STS_CR | SD_STS_RA | SD_STS_PD \ + | SD_STS_DT | SD_STS_SC | SD_STS_RC | SD_STS_WC) +#define SD_STS_W1C_MASK \ + (SD_STS_CECC | SD_STS_BD | SD_STS_DD | SD_STS_CD \ + | SD_STS_SI | SD_STS_CR | SD_STS_RA | SD_STS_PD \ + | SD_STS_DT | SD_STS_SC | SD_STS_RC | SD_STS_WC) +#define SD_STS_CMD_MASK \ + (SD_STS_CR | SD_STS_RA | SD_STS_SC) +#define SD_STS_DATA_MASK\ + (SD_STS_BD | SD_STS_DT | SD_STS_RC | SD_STS_WC) + +#define SDSTATUS_REG2 0x2a +#define SD_STS_DB 0x20 +#define SD_STS_CFE 0x80 + +#define SDRSPTMO_REG 0x2C + +#define SDCLKSEL_REG 0x30 +#define SD_CLKSEL_375k 0x00 +#define SD_CLKSEL_10M 0x01 +#define SD_CLKSEL_12M 0x02 +#define SD_CLKSEL_15M 0x03 +#define SD_CLKSEL_20M 0x04 +#define SD_CLKSEL_24M 0x05 +#define SD_CLKSEL_30M 0x06 +#define SD_CLKSEL_40M 0x07 + +#define SDEXTCTRL_REG 0x34 +#define SD_EXTCTRL_AUTO 0x01 +#define SD_EXTCTRL_8BIT 0x04 +/* 0x38-0xFF reserved */ + +/* + * Data DMA Control Registers + */ + +#define DDMABASEADD_REG 0x0 +#define DDMACOUNTER_REG 0x4 + +#define DDMACONTROL_REG 0x8 +#define DDMA_CONTROL_RDDIR 0x100 +#define DDMA_CONTROL_DATA16 0x200 +#define DDMA_CONTROL_EFMODE 0x400 +#define DDMA_CONTROL_RDENIRQ 0x10000 +#define DDMA_CONTROL_SOFTRESET 0x1000000 + +#define DDMASTATUS_REG 0xc +#define DDMA_STATUS_IRQSTATUS 0x10000 + +#define DDMASTART_REG 0x10 +/*0x14-0xFF reserved*/ + +/* + * PCI Control Registers + */ + +/*0x0 - 0x1 reserved*/ +#define PCICLKGATT_REG 0x2 +#define PCI_CLKGATT_SOFTRST 0x01 +#define PCI_CLKGATT_CKGEN 0x02 +#define PCI_CLKGATT_POWSEL 0x10 +#define PCI_CLKGATT_POWOFF 0x20 + +#define PCINFCCLK_REG 0x3 +#define PCIMSCCLK_REG 0x4 +#define PCISDCCLK_REG 0x5 +#define PCICEACLK_REG 0x6 + +#define PCIDMACLK_REG 0x7 +#define PCI_DMA_CLK_NFC 0x0 +#define PCI_DMA_CLK_MSC 0x1 +#define PCI_DMA_CLK_SDC 0x2 +#define PCI_DMA_CLK_CEA 0x3 + +#define PCIINTCTRL_REG 0x8 +#define PCI_INTCTRL_NFCIRQEN 0x01 +#define PCI_INTCTRL_MSCIRQEN 0x02 +#define PCI_INTCTRL_SDCIRQEN 0x04 +#define PCI_INTCTRL_CEAIRQEN 0x08 +#define PCI_INTCTRL_DMAIRQEN 0x10 +#define PCI_INTCTRL_CICHIRQEN 0x20 + +#define PCIINTSTATUS_REG 0x9 +#define PCI_INT_STATUS_NFC 0x01 +#define PCI_INT_STATUS_MSC 0x02 +#define PCI_INT_STATUS_SDC 0x04 +#define PCI_INT_STATUS_CEA 0x08 +#define PCI_INT_STATUS_DMA 0x10 +#define PCI_INT_STATUS_CICH 0x20 + +#define PCITMOCTRL_REG 0xa +#define PCI_TMO_CTRL_NO 0x0 +#define PCI_TMO_CTRL_32US 0x1 +#define PCI_TMO_CTRL_256US 0x2 +#define PCI_TMO_CTRL_1024US 0x3 +#define PCI_TMO_CTRL_256MS 0x4 +#define PCI_TMO_CTRL_512MS 0x5 +#define PCI_TMO_CTRL_1024MS 0x6 + +/*0xB-0xFF reserved*/ + +struct sdhcreg { + u32 sdcontrol_reg; + u32 sdcmdarg_reg; + u32 sdbusmode_reg; + u32 sdblklen_reg; + u32 sdresp_reg[4]; + u32 sdcurblkcnt_reg; + u32 sdintmask_reg; + u32 sdstatus_reg; + u32 sdrsptmo_reg; + u32 sdclksel_reg; + u32 sdextctrl_reg; +}; + +struct pcictrlreg { + u8 reserve[2]; + u8 pciclkgat_reg; + u8 pcinfcclk_reg; + u8 pcimscclk_reg; + u8 pcisdclk_reg; + u8 pcicaclk_reg; + u8 pcidmaclk_reg; + u8 pciintctrl_reg; + u8 pciintstatus_reg; + u8 pcitmoctrl_reg; + u8 Resv; +}; + +struct via_crdr_chip { + struct via_crdr_mmc_host *sdc; + void __iomem *mmiobase; + void __iomem *sdhc_mmiobase; + void __iomem *ddma_mmiobase; + void __iomem *pcictrl_mmiobase; + struct workqueue_struct *card_detect_queue; + u32 cur_device; + + u8 pci_cfg_bak[0x42]; + struct pcictrlreg pm_pcictrl_reg; + struct sdhcreg pm_sdhc_reg; +}; + +struct via_crdr_mmc_host { + struct via_crdr_chip *chip; + struct mmc_host *mmc; + spinlock_t lock; + struct mmc_request *mrq; + struct mmc_command *cmd; + struct mmc_data *data; + int data_early:1; + u8 bus_width; + u8 *ddmabuf; + dma_addr_t dmaaddr; + + struct work_struct carddet_work; + struct tasklet_struct finish_tasklet; + + struct timer_list timer; +}; + +#define DRV_NAME "via_sdmmc_driver" +#define DRIVER_VERSION "2.1 beta 2" + +static struct pci_device_id via_ids[] = { + {PCI_VENDOR_ID_VIA, 0x9530, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0,}, + {0,} +}; + +MODULE_DEVICE_TABLE(pci, via_ids); + +static void via_print_sdchc(struct via_crdr_chip *vcrdr_chip) +{ + void __iomem *addrbase; + + addrbase = vcrdr_chip->sdhc_mmiobase; + + pr_debug("SDC MMIO Registers:\n"); + pr_debug("SDCONTROL_REG=%x ,", readl(addrbase + SDCONTROL_REG)); + pr_debug("SDCMDARG_REG=%x ,", readl(addrbase + SDCMDARG_REG)); + pr_debug("SDBUSMODE_REG=%x\n", readl(addrbase + SDBUSMODE_REG)); + pr_debug("SDBLKLEN_REG=%x ,", readl(addrbase + SDBLKLEN_REG)); + pr_debug("SDCURBLKCNT_REG=%x,", readl(addrbase + SDCURBLKCNT_REG)); + pr_debug("SDINTMASK_REG=%x\n", readl(addrbase + SDINTMASK_REG)); + pr_debug("SDSTATUS_REG=%x,", readl(addrbase + SDSTATUS_REG)); + pr_debug("SDCLKSEL_REG=%x,", readl(addrbase + SDCLKSEL_REG)); + pr_debug("SDEXTCTRL_REG=%x\n", readl(addrbase + SDEXTCTRL_REG)); +} + +static void via_print_pcictrl(struct via_crdr_chip *vcrdr_chip) +{ + void __iomem *addrbase; + + addrbase = vcrdr_chip->pcictrl_mmiobase; + + pr_debug("PCI Control Registers:\n"); + pr_debug("PCICLKGATT_REG=%x,", readb(addrbase + PCICLKGATT_REG)); + pr_debug("PCIMSCCCLK_REG=%x,", readb(addrbase + PCIMSCCLK_REG)); + pr_debug("PCISDCCLK_REG=%x,", readb(addrbase + PCISDCCLK_REG)); + pr_debug("PCIDMACLK_REG=%x\n,", readb(addrbase + PCIDMACLK_REG)); + pr_debug("PCIINTCTRL_REG=%x,", readb(addrbase + PCIINTCTRL_REG)); + pr_debug("PCIINTSTATUS_REG=%x\n", readb(addrbase + PCIINTSTATUS_REG)); +} + +static void via_save_pcictrlreg(struct via_crdr_chip *vcrdr_chip) +{ + struct pcictrlreg *pm_pcictrl_reg; + void __iomem *addrbase; + + pm_pcictrl_reg = &(vcrdr_chip->pm_pcictrl_reg); + addrbase = vcrdr_chip->pcictrl_mmiobase; + + pm_pcictrl_reg->pciclkgat_reg = readb(addrbase + PCICLKGATT_REG); + pm_pcictrl_reg->pciclkgat_reg |= + PCI_CLKGATT_POWSEL | PCI_CLKGATT_POWOFF; + pm_pcictrl_reg->pcimscclk_reg = readb(addrbase + PCIMSCCLK_REG); + pm_pcictrl_reg->pcisdclk_reg = readb(addrbase + PCISDCCLK_REG); + pm_pcictrl_reg->pcidmaclk_reg = readb(addrbase + PCIDMACLK_REG); + pm_pcictrl_reg->pciintctrl_reg = readb(addrbase + PCIINTCTRL_REG); + pm_pcictrl_reg->pciintstatus_reg = readb(addrbase + PCIINTSTATUS_REG); + pm_pcictrl_reg->pcitmoctrl_reg = readb(addrbase + PCITMOCTRL_REG); +} + +static void via_restore_pcictrlreg(struct via_crdr_chip *vcrdr_chip) +{ + struct pcictrlreg *pm_pcictrl_reg; + void __iomem *addrbase; + + pm_pcictrl_reg = &(vcrdr_chip->pm_pcictrl_reg); + addrbase = vcrdr_chip->pcictrl_mmiobase; + + writeb(pm_pcictrl_reg->pciclkgat_reg, addrbase + PCICLKGATT_REG); + writeb(pm_pcictrl_reg->pcimscclk_reg, addrbase + PCIMSCCLK_REG); + writeb(pm_pcictrl_reg->pcisdclk_reg, addrbase + PCISDCCLK_REG); + writeb(pm_pcictrl_reg->pcidmaclk_reg, addrbase + PCIDMACLK_REG); + writeb(pm_pcictrl_reg->pciintctrl_reg, addrbase + PCIINTCTRL_REG); + writeb(pm_pcictrl_reg->pciintstatus_reg, addrbase + PCIINTSTATUS_REG); + writeb(pm_pcictrl_reg->pcitmoctrl_reg, addrbase + PCITMOCTRL_REG); +} + +static void via_save_sdcreg(struct via_crdr_chip *vcrdr_chip) +{ + struct sdhcreg *pm_sdhc_reg; + void __iomem *addrbase; + + pm_sdhc_reg = &(vcrdr_chip->pm_sdhc_reg); + addrbase = vcrdr_chip->sdhc_mmiobase; + + pm_sdhc_reg->sdcontrol_reg = readl(addrbase + SDCONTROL_REG); + pm_sdhc_reg->sdcmdarg_reg = readl(addrbase + SDCMDARG_REG); + pm_sdhc_reg->sdbusmode_reg = readl(addrbase + SDBUSMODE_REG); + pm_sdhc_reg->sdblklen_reg = readl(addrbase + SDBLKLEN_REG); + pm_sdhc_reg->sdcurblkcnt_reg = readl(addrbase + SDCURBLKCNT_REG); + pm_sdhc_reg->sdintmask_reg = readl(addrbase + SDINTMASK_REG); + pm_sdhc_reg->sdstatus_reg = readl(addrbase + SDSTATUS_REG); + pm_sdhc_reg->sdrsptmo_reg = readl(addrbase + SDRSPTMO_REG); + pm_sdhc_reg->sdclksel_reg = readl(addrbase + SDCLKSEL_REG); + pm_sdhc_reg->sdextctrl_reg = readl(addrbase + SDEXTCTRL_REG); +} + +static void via_restore_sdcreg(struct via_crdr_chip *vcrdr_chip) +{ + struct sdhcreg *pm_sdhc_reg; + void __iomem *addrbase; + + pm_sdhc_reg = &(vcrdr_chip->pm_sdhc_reg); + addrbase = vcrdr_chip->sdhc_mmiobase; + + writel(pm_sdhc_reg->sdcontrol_reg, addrbase + SDCONTROL_REG); + writel(pm_sdhc_reg->sdcmdarg_reg, addrbase + SDCMDARG_REG); + writel(pm_sdhc_reg->sdbusmode_reg, addrbase + SDBUSMODE_REG); + writel(pm_sdhc_reg->sdblklen_reg, addrbase + SDBLKLEN_REG); + writel(pm_sdhc_reg->sdcurblkcnt_reg, addrbase + SDCURBLKCNT_REG); + writel(pm_sdhc_reg->sdintmask_reg, addrbase + SDINTMASK_REG); + writel(pm_sdhc_reg->sdstatus_reg, addrbase + SDSTATUS_REG); + writel(pm_sdhc_reg->sdrsptmo_reg, addrbase + SDRSPTMO_REG); + writel(pm_sdhc_reg->sdclksel_reg, addrbase + SDCLKSEL_REG); + writel(pm_sdhc_reg->sdextctrl_reg, addrbase + SDEXTCTRL_REG); +} + +static void via_set_ddma(struct via_crdr_chip *vcrdr_chip, + dma_addr_t dmaaddr, u32 count, int dir, int enirq) +{ + void __iomem *addrbase = vcrdr_chip->ddma_mmiobase; + u32 ctrl_data = 0; + + if (enirq) + ctrl_data |= DDMA_CONTROL_RDENIRQ; + + if (dir) + ctrl_data |= DDMA_CONTROL_RDDIR; + + writel(dmaaddr, addrbase + DDMABASEADD_REG); + writel(count, addrbase + DDMACOUNTER_REG); + writel(ctrl_data, addrbase + DDMACONTROL_REG); + writel(0x01, addrbase + DDMASTART_REG); +} + +static void via_sdc_preparedata(struct via_crdr_mmc_host *host, + struct mmc_data *data) +{ + void __iomem *addrbase; + u32 org_data, blk_reg; + u32 offset = 0; + int dir, count; + + host->data = data; + host->data_early = 0; + count = data->blocks * data->blksz; + + memset(host->ddmabuf, 0, count); + + if (data->flags & MMC_DATA_WRITE) + dir = MEM_TO_CARD; + else + dir = CARD_TO_MEM; + + if (data->flags & MMC_DATA_WRITE) { + struct scatterlist *sg; + unsigned char *tmpbuf = NULL; + int i; + + for_each_sg(data->sg, sg, data->sg_len, i) { + tmpbuf = kmap_atomic(sg_page(sg), KM_BIO_SRC_IRQ); + tmpbuf += sg->offset; + memcpy(host->ddmabuf + offset, tmpbuf, sg->length); + offset += sg->length; + kunmap_atomic(tmpbuf, KM_BIO_SRC_IRQ); + } + } + + via_set_ddma(host->chip, host->dmaaddr, count, dir, 0); + + addrbase = host->chip->pcictrl_mmiobase; + if (readb(addrbase + PCISDCCLK_REG) != PCI_CLK_48M) + writeb(PCI_CLK_48M, addrbase + PCISDCCLK_REG); + + addrbase = host->chip->sdhc_mmiobase; + blk_reg = (((data->blksz) - 1) & 0xffff) | (data->blocks << 16); + org_data = readl(addrbase + SDBLKLEN_REG); + org_data &= ~0xffff07ff; + blk_reg &= 0xffff07ff; + writel(org_data | blk_reg, addrbase + SDBLKLEN_REG); +} + +static void via_sdc_get_response(struct via_crdr_mmc_host *host, + struct mmc_command *cmd) +{ + void __iomem *addrbase = host->chip->sdhc_mmiobase; + u32 dwdata0 = readl(addrbase + SDRESP0_REG); + u32 dwdata1 = readl(addrbase + SDRESP1_REG); + u32 dwdata2 = readl(addrbase + SDRESP2_REG); + u32 dwdata3 = readl(addrbase + SDRESP3_REG); + + if (cmd->flags & MMC_RSP_136) { + cmd->resp[0] = ((u8) (dwdata1)) | + (((u8) (dwdata0 >> 24)) << 8) | + (((u8) (dwdata0 >> 16)) << 16) | + (((u8) (dwdata0 >> 8)) << 24); + + cmd->resp[1] = ((u8) (dwdata2)) | + (((u8) (dwdata1 >> 24)) << 8) | + (((u8) (dwdata1 >> 16)) << 16) | + (((u8) (dwdata1 >> 8)) << 24); + + cmd->resp[2] = ((u8) (dwdata3)) | + (((u8) (dwdata2 >> 24)) << 8) | + (((u8) (dwdata2 >> 16)) << 16) | + (((u8) (dwdata2 >> 8)) << 24); + + cmd->resp[3] = 0xff | + ((((u8) (dwdata3 >> 24))) << 8) | + (((u8) (dwdata3 >> 16)) << 16) | + (((u8) (dwdata3 >> 8)) << 24); + } else { + dwdata0 >>= 8; + cmd->resp[0] = ((dwdata0 & 0xff) << 24) | + (((dwdata0 >> 8) & 0xff) << 16) | + (((dwdata0 >> 16) & 0xff) << 8) | (dwdata1 & 0xff); + + dwdata1 >>= 8; + cmd->resp[1] = ((dwdata1 & 0xff) << 24) | + (((dwdata1 >> 8) & 0xff) << 16) | + (((dwdata1 >> 16) & 0xff) << 8); + } +} + +static void via_sdc_send_command(struct via_crdr_mmc_host *host, + struct mmc_command *cmd) +{ + void __iomem *addrbase; + struct mmc_data *data; + u32 cmdctrl = 0; + + data = cmd->data; + + mod_timer(&host->timer, jiffies + 10 * HZ); + host->cmd = cmd; + + cmdctrl = cmd->opcode << 8; + + cmd->flags &= 0x1f; + switch (cmd->flags) { + case MMC_RSP_NONE: + cmdctrl |= ((u32) (0x0 << 16)); + break; + case MMC_RSP_R1: + cmdctrl |= ((u32) (0x01 << 16)); + break; + case MMC_RSP_R1B: + cmdctrl |= ((u32) (0x09 << 16)); + break; + case MMC_RSP_R2: + cmdctrl |= ((u32) (0x02 << 16)); + break; + case MMC_RSP_R3: + cmdctrl |= ((u32) (0x03 << 16)); + break; + default: + pr_err("%s: cmd->flag is not valid\n", mmc_hostname(host->mmc)); + break; + } + + if (!(cmd->data)) + goto nodata; + + via_sdc_preparedata(host, data); + + if (data->blocks > 1) { + if (data->flags & MMC_DATA_WRITE) + cmdctrl |= 0x34; + else + cmdctrl |= 0x40; + } else { + if (data->flags & MMC_DATA_WRITE) + cmdctrl |= 0x14; + else + cmdctrl |= 0x20; + } + +nodata: + if (cmd->opcode == MMC_STOP_TRANSMISSION) + cmdctrl |= 0x70; + + cmdctrl |= 1; + + addrbase = host->chip->sdhc_mmiobase; + writel(cmd->arg, addrbase + SDCMDARG_REG); + writel(cmdctrl, addrbase + SDCONTROL_REG); +} + +static void via_sdc_finish_data(struct via_crdr_mmc_host *host) +{ + struct mmc_data *data; + u16 blocks; + u32 offset = 0; + + BUG_ON(!host->data); + + data = host->data; + host->data = NULL; + + if (data->blocks == 1) + blocks = (data->error == 0) ? 0 : 1; + else + blocks = readw(host->chip->sdhc_mmiobase + SDCURBLKCNT_REG); + data->bytes_xfered = data->blksz * (data->blocks - blocks); + + if (!data->error && blocks) { + pr_err("%s: Controller signalled completion even " + "though there were blocks left.\n", + mmc_hostname(host->mmc)); + data->error = -EIO; + } + + if (data->flags & MMC_DATA_READ) { + struct scatterlist *sg; + unsigned char *sgbuf; + int i; + + for_each_sg(data->sg, sg, data->sg_len, i) { + sgbuf = kmap_atomic(sg_page(sg), KM_BIO_SRC_IRQ); + memcpy(sgbuf + sg->offset, host->ddmabuf + offset, + sg->length); + offset += sg[i].length; + kunmap_atomic(sgbuf, KM_BIO_SRC_IRQ); + } + } + + if (data->stop) + via_sdc_send_command(host, data->stop); + else + tasklet_schedule(&host->finish_tasklet); +} + +static void via_sdc_finish_command(struct via_crdr_mmc_host *host) +{ + via_sdc_get_response(host, host->cmd); + + host->cmd->error = 0; + + if (host->data && host->data_early) + via_sdc_finish_data(host); + + if (!host->cmd->data) + tasklet_schedule(&host->finish_tasklet); + + host->cmd = NULL; +} + +static void via_sdc_request(struct mmc_host *mmc, struct mmc_request *mrq) +{ + void __iomem *addrbase; + struct via_crdr_mmc_host *host; + struct via_crdr_chip *vcrdr_chip; + unsigned long flags; + u16 status; + + host = mmc_priv(mmc); + vcrdr_chip = host->chip; + + spin_lock_irqsave(&host->lock, flags); + + addrbase = vcrdr_chip->pcictrl_mmiobase; + writeb(PCI_DMA_CLK_SDC, addrbase + PCIDMACLK_REG); + vcrdr_chip->cur_device = DEV_SDC; + + status = readw(vcrdr_chip->sdhc_mmiobase + SDSTATUS_REG); + status &= SD_STS_W1C_MASK; + writew(status, vcrdr_chip->sdhc_mmiobase + SDSTATUS_REG); + + WARN_ON(host->mrq != NULL); + host->mrq = mrq; + + if (host->mrq->cmd->opcode == 5) { + host->mrq->cmd->error = -ENOMEDIUM; + tasklet_schedule(&host->finish_tasklet); + goto out; + } + + status = readw(vcrdr_chip->sdhc_mmiobase + SDSTATUS_REG); + if (!(status & SD_STS_SLOTG)) { + host->mrq->cmd->error = -ENOMEDIUM; + tasklet_schedule(&host->finish_tasklet); + } else { + via_sdc_send_command(host, mrq->cmd); + } + +out: + mmiowb(); + spin_unlock_irqrestore(&host->lock, flags); +} + +static void via_sdc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) +{ + struct via_crdr_mmc_host *host; + struct via_crdr_chip *vcrdr_chip; + unsigned long flags; + + host = mmc_priv(mmc); + vcrdr_chip = host->chip; + + spin_lock_irqsave(&host->lock, flags); + + if (host->bus_width != ios->bus_width) { + void __iomem *addrbase = vcrdr_chip->sdhc_mmiobase; + u32 org_data = readl(addrbase + SDBUSMODE_REG); + + if (ios->bus_width == MMC_BUS_WIDTH_1) { + host->bus_width = MMC_BUS_WIDTH_1; + org_data &= ~SD_MODE_4BIT; + } else { + host->bus_width = MMC_BUS_WIDTH_4; + org_data |= SD_MODE_4BIT; + } + writel(org_data, addrbase + SDBUSMODE_REG); + } + + mmiowb(); + spin_unlock_irqrestore(&host->lock, flags); +} + +static int via_sdc_get_ro(struct mmc_host *mmc) +{ + struct via_crdr_mmc_host *host; + struct via_crdr_chip *vcrdr_chip; + unsigned long flags; + u16 status; + + host = mmc_priv(mmc); + vcrdr_chip = host->chip; + + spin_lock_irqsave(&host->lock, flags); + + status = readw(vcrdr_chip->sdhc_mmiobase + SDSTATUS_REG); + + spin_unlock_irqrestore(&host->lock, flags); + + return !(status & SD_STS_WP); +} + +static const struct mmc_host_ops via_sdc_ops = { + .request = via_sdc_request, + .set_ios = via_sdc_set_ios, + .get_ro = via_sdc_get_ro, +}; + +static void via_reset_pcictrl(struct via_crdr_mmc_host *host) +{ + struct via_crdr_chip *vcrdr_chip; + void __iomem *addrbase; + unsigned long flags; + u8 gatt; + + vcrdr_chip = host->chip; + addrbase = vcrdr_chip->pcictrl_mmiobase; + + spin_lock_irqsave(&host->lock, flags); + + via_save_pcictrlreg(vcrdr_chip); + via_save_sdcreg(vcrdr_chip); + + spin_unlock_irqrestore(&host->lock, flags); + + gatt = PCI_CLKGATT_POWSEL | PCI_CLKGATT_POWOFF; + writeb(gatt, vcrdr_chip->pcictrl_mmiobase + PCICLKGATT_REG); + msleep(3); + gatt |= PCI_CLKGATT_SOFTRST; + writeb(gatt, vcrdr_chip->pcictrl_mmiobase + PCICLKGATT_REG); + msleep(3); + + spin_lock_irqsave(&host->lock, flags); + + via_restore_pcictrlreg(vcrdr_chip); + via_restore_sdcreg(vcrdr_chip); + + mmiowb(); + spin_unlock_irqrestore(&host->lock, flags); +} + +static void via_sdc_cmd_isr(struct via_crdr_mmc_host *host, u16 intmask) +{ + BUG_ON(intmask == 0); + + if (!host->cmd) { + pr_err("%s: Got command interrupt 0x%x even " + "though no command operation was in progress.\n", + mmc_hostname(host->mmc), intmask); + return; + } + + if (intmask & SD_STS_RA) + host->cmd->error = -ETIMEDOUT; + else if (intmask & SD_STS_SC) + host->cmd->error = -EILSEQ; + + if (host->cmd->error) + tasklet_schedule(&host->finish_tasklet); + else if (intmask & SD_STS_CR) + via_sdc_finish_command(host); +} + +static void via_sdc_data_isr(struct via_crdr_mmc_host *host, u16 intmask) +{ + BUG_ON(intmask == 0); + + if (intmask & SD_STS_DT) + host->data->error = -ETIMEDOUT; + else if (intmask & (SD_STS_RC | SD_STS_WC)) + host->data->error = -EILSEQ; + + if (host->data->error) + via_sdc_finish_data(host); + else { + if (host->cmd) + host->data_early = 1; + else + via_sdc_finish_data(host); + } +} + +static irqreturn_t via_sdc_isr(int irq, void *dev_id) +{ + struct via_crdr_mmc_host *sdhost = dev_id; + struct via_crdr_chip *vcrdr_chip = sdhost->chip; + void __iomem *addrbase; + u8 pci_status; + u16 sd_status; + irqreturn_t result; + + spin_lock(&sdhost->lock); + + addrbase = vcrdr_chip->pcictrl_mmiobase; + pci_status = readb(addrbase + PCIINTSTATUS_REG); + if (!(pci_status & PCI_INT_STATUS_SDC)) { + result = IRQ_NONE; + goto out; + } + + addrbase = vcrdr_chip->sdhc_mmiobase; + sd_status = readw(addrbase + SDSTATUS_REG); + sd_status &= SD_STS_INT_MASK; + sd_status &= ~SD_STS_IGN_MASK; + if (!sd_status) { + result = IRQ_NONE; + goto out; + } + + if (sd_status & SD_STS_SI) { + writew(sd_status & SD_STS_SI, addrbase + SDSTATUS_REG); + queue_work(vcrdr_chip->card_detect_queue, + &sdhost->carddet_work); + } + + sd_status &= ~SD_STS_SI; + if (sd_status & SD_STS_CMD_MASK) { + writew(sd_status & SD_STS_CMD_MASK, addrbase + SDSTATUS_REG); + via_sdc_cmd_isr(sdhost, sd_status & SD_STS_CMD_MASK); + } + if (sd_status & SD_STS_DATA_MASK) { + writew(sd_status & SD_STS_DATA_MASK, addrbase + SDSTATUS_REG); + via_sdc_data_isr(sdhost, sd_status & SD_STS_DATA_MASK); + } + + sd_status &= ~(SD_STS_CMD_MASK | SD_STS_DATA_MASK); + if (sd_status) { + pr_err("%s: Unexpected interrupt 0x%x\n", + mmc_hostname(sdhost->mmc), sd_status); + writew(sd_status, addrbase + SDSTATUS_REG); + } + + result = IRQ_HANDLED; + + mmiowb(); +out: + spin_unlock(&sdhost->lock); + + return result; +} + +static void via_sdc_timeout(unsigned long ulongdata) +{ + struct via_crdr_mmc_host *sdhost; + unsigned long flags; + + sdhost = (struct via_crdr_mmc_host *)ulongdata; + + spin_lock_irqsave(&sdhost->lock, flags); + + if (sdhost->mrq) { + pr_err("%s: Timeout waiting for hardware interrupt." + "cmd:0x%x\n", mmc_hostname(sdhost->mmc), + sdhost->mrq->cmd->opcode); + if (sdhost->data) { + sdhost->data->error = -ETIMEDOUT; + via_sdc_finish_data(sdhost); + } else { + if (sdhost->cmd) + sdhost->cmd->error = -ETIMEDOUT; + else + sdhost->mrq->cmd->error = -ETIMEDOUT; + tasklet_schedule(&sdhost->finish_tasklet); + } + } + + mmiowb(); + spin_unlock_irqrestore(&sdhost->lock, flags); +} + +static void via_sdc_tasklet_finish(unsigned long param) +{ + struct via_crdr_mmc_host *host; + unsigned long flags; + struct mmc_request *mrq; + + host = (struct via_crdr_mmc_host *)param; + + spin_lock_irqsave(&host->lock, flags); + + del_timer(&host->timer); + mrq = host->mrq; + host->mrq = NULL; + host->cmd = NULL; + host->data = NULL; + + spin_unlock_irqrestore(&host->lock, flags); + + mmc_request_done(host->mmc, mrq); +} + +static void via_sdc_card_detect(struct work_struct *work) +{ + struct via_crdr_mmc_host *host; + struct via_crdr_chip *vcrdr_chip; + void __iomem *addrbase; + unsigned long flags; + u16 status; + + host = container_of(work, struct via_crdr_mmc_host, carddet_work); + vcrdr_chip = host->chip; + + addrbase = vcrdr_chip->ddma_mmiobase; + writel(DDMA_CONTROL_SOFTRESET, addrbase + DDMACONTROL_REG); + + spin_lock_irqsave(&host->lock, flags); + + addrbase = vcrdr_chip->pcictrl_mmiobase; + writeb(PCI_DMA_CLK_SDC, addrbase + PCIDMACLK_REG); + vcrdr_chip->cur_device = DEV_SDC; + + addrbase = vcrdr_chip->sdhc_mmiobase; + status = readw(addrbase + SDSTATUS_REG); + if (!(status & SD_STS_SLOTG)) { + if (host->mrq) { + pr_err("%s: Card removed during transfer!\n", + mmc_hostname(host->mmc)); + host->mrq->cmd->error = -ENOMEDIUM; + tasklet_schedule(&host->finish_tasklet); + } + + addrbase = vcrdr_chip->pcictrl_mmiobase; + writeb(PCI_CLK_375K, addrbase + PCISDCCLK_REG); + + mmiowb(); + spin_unlock_irqrestore(&host->lock, flags); + + via_reset_pcictrl(host); + + spin_lock_irqsave(&host->lock, flags); + + vcrdr_chip->cur_device = DEV_NULL; + } + + mmiowb(); + spin_unlock_irqrestore(&host->lock, flags); + + via_print_pcictrl(vcrdr_chip); + via_print_sdchc(vcrdr_chip); + + mmc_detect_change(host->mmc, 0); +} + +static void via_init_mmc_host(struct via_crdr_mmc_host *host) +{ + struct via_crdr_chip *vcrdr_chip = host->chip; + struct mmc_host *mmc = host->mmc; + void __iomem *addrbase; + u32 lenreg; + u32 status; + + init_timer(&host->timer); + host->timer.data = (unsigned long)host; + host->timer.function = via_sdc_timeout; + + spin_lock_init(&host->lock); + + host->mmc->f_min = 450000; + host->mmc->f_max = 24000000; + host->mmc->max_seg_size = 512; + host->mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34; + host->mmc->caps = MMC_CAP_4_BIT_DATA; + host->mmc->ops = &via_sdc_ops; + host->mmc->max_hw_segs = 128; + host->mmc->max_phys_segs = 128; + host->mmc->max_seg_size = mmc->max_hw_segs * 512; + host->mmc->max_req_size = host->mmc->max_seg_size; + + INIT_WORK(&host->carddet_work, via_sdc_card_detect); + + tasklet_init(&host->finish_tasklet, via_sdc_tasklet_finish, + (unsigned long)host); + + addrbase = vcrdr_chip->sdhc_mmiobase; + writel(0x0, addrbase + SDINTMASK_REG); + msleep(1); + + lenreg = 0x1ff; + lenreg |= SD_BLKLEN_GPIDET | SD_BLKLEN_INTEN; + lenreg |= 0x80000; + writel(lenreg, addrbase + SDBLKLEN_REG); + + status = readw(addrbase + SDSTATUS_REG); + status &= SD_STS_W1C_MASK; + writew(status, addrbase + SDSTATUS_REG); + + status = readw(addrbase + SDSTATUS_REG2); + status |= SD_STS_CFE; + writew(status, addrbase + SDSTATUS_REG2); + + writeb(0x0, addrbase + SDEXTCTRL_REG); + + writel(SD_ACTIVE_INTMASK, addrbase + SDINTMASK_REG); + msleep(1); + + host->bus_width = MMC_BUS_WIDTH_1; + + addrbase = vcrdr_chip->pcictrl_mmiobase; + writeb(PCI_CLK_375K, addrbase + PCISDCCLK_REG); +} + +static int __devinit via_chip_probe(struct pci_dev *pcidev, + const struct pci_device_id *id) +{ + struct device *dev; + struct mmc_host *mmc; + struct via_crdr_mmc_host *sdhost; + struct via_crdr_chip *vcrdr_chip; + u32 mmiobase; + u32 len; + u8 rev; + int ret; + u8 gatt; + + pci_read_config_byte(pcidev, PCI_CLASS_REVISION, &rev); + pr_info(DRV_NAME + ": VIA SDMMC controller found at %s [%04x:%04x] (rev %x)\n", + pci_name(pcidev), (int)pcidev->vendor, (int)pcidev->device, + (int)rev); + + ret = pci_enable_device(pcidev); + if (ret) + return ret; + + ret = pci_request_regions(pcidev, DRV_NAME); + if (ret) + goto disable; + + vcrdr_chip = kzalloc(sizeof(*vcrdr_chip), GFP_KERNEL); + if (!vcrdr_chip) { + ret = -ENOMEM; + goto release; + } + + vcrdr_chip->card_detect_queue = + create_singlethread_workqueue("via_card_detect"); + if (!vcrdr_chip->card_detect_queue) { + ret = -ENOMEM; + goto chip_free; + } + + pci_write_config_byte(pcidev, PCI_WORK_MODE, 0); + pci_write_config_byte(pcidev, PCI_DEBUG_MODE, 0); + + len = pci_resource_len(pcidev, 0); + mmiobase = pci_resource_start(pcidev, 0); + vcrdr_chip->mmiobase = ioremap_nocache(mmiobase, len); + if (!vcrdr_chip->mmiobase) { + ret = -ENOMEM; + goto work_queue_free; + } + + vcrdr_chip->sdhc_mmiobase = vcrdr_chip->mmiobase + SDC_OFFSET; + vcrdr_chip->ddma_mmiobase = vcrdr_chip->mmiobase + DDMA_OFFSET; + vcrdr_chip->pcictrl_mmiobase = vcrdr_chip->mmiobase + PCICTRL_OFFSET; + + dev = &pcidev->dev; + dev_set_drvdata(dev, vcrdr_chip); + + vcrdr_chip->cur_device = DEV_NULL; + + gatt = PCI_CLKGATT_POWSEL | PCI_CLKGATT_POWOFF; + writeb(gatt, vcrdr_chip->pcictrl_mmiobase + PCICLKGATT_REG); + msleep(3); + gatt |= PCI_CLKGATT_SOFTRST; + writeb(gatt, vcrdr_chip->pcictrl_mmiobase + PCICLKGATT_REG); + msleep(3); + + mmc = mmc_alloc_host(sizeof(struct via_crdr_mmc_host), dev); + if (!mmc) { + ret = -ENOMEM; + goto unmap; + } + + sdhost = mmc_priv(mmc); + sdhost->mmc = mmc; + sdhost->chip = vcrdr_chip; + vcrdr_chip->sdc = sdhost; + + via_init_mmc_host(sdhost); + + ret = + request_irq(pcidev->irq, via_sdc_isr, IRQF_SHARED, DRV_NAME, + sdhost); + if (ret) + goto free_mmc_host; + + sdhost->ddmabuf = (u8 *) __get_free_pages(GFP_KERNEL, 4); + if (!sdhost->ddmabuf) { + ret = -ENOMEM; + goto free_mmc_irq; + } + + sdhost->dmaaddr = dma_map_single(dev, sdhost->ddmabuf, + sdhost->mmc->max_req_size, DMA_BIDIRECTIONAL); + + writeb(PCI_INTCTRL_SDCIRQEN, + vcrdr_chip->pcictrl_mmiobase + PCIINTCTRL_REG); + writeb(PCI_TMO_CTRL_1024MS, + vcrdr_chip->pcictrl_mmiobase + PCITMOCTRL_REG); + + mmc_add_host(mmc); + + return 0; + +free_mmc_irq: + free_irq(pcidev->irq, sdhost); +free_mmc_host: + mmc_free_host(mmc); +unmap: + dev_set_drvdata(dev, NULL); + iounmap(vcrdr_chip->mmiobase); +work_queue_free: + destroy_workqueue(vcrdr_chip->card_detect_queue); +chip_free: + kfree(vcrdr_chip); +release: + pci_release_regions(pcidev); +disable: + pci_disable_device(pcidev); + + return ret; +} + +static void __devexit via_chip_remove(struct pci_dev *pcidev) +{ + struct via_crdr_chip *vcrdr_chip; + struct via_crdr_mmc_host *sdhost; + u8 gatt; + + pr_info(DRV_NAME + ": VIA SDMMC controller at %s [%04x:%04x] has been removed\n", + pci_name(pcidev), (int)pcidev->vendor, (int)pcidev->device); + + vcrdr_chip = pci_get_drvdata(pcidev); + + flush_workqueue(vcrdr_chip->card_detect_queue); + + sdhost = vcrdr_chip->sdc; + if (sdhost) { + + tasklet_kill(&sdhost->finish_tasklet); + dma_unmap_single(&pcidev->dev, sdhost->dmaaddr, + sdhost->mmc->max_req_size, DMA_BIDIRECTIONAL); + free_pages((unsigned long)sdhost->ddmabuf, 4); + + if (&sdhost->timer) + del_timer_sync(&sdhost->timer); + + mmc_remove_host(sdhost->mmc); + } + + free_irq(pcidev->irq, sdhost); + mmc_free_host(sdhost->mmc); + + writeb(0x0, vcrdr_chip->pcictrl_mmiobase + PCIINTCTRL_REG); + + gatt = readb(vcrdr_chip->pcictrl_mmiobase + PCICLKGATT_REG); + gatt &= ~PCI_CLKGATT_POWOFF; + writeb(gatt, vcrdr_chip->pcictrl_mmiobase + PCICLKGATT_REG); + + dev_set_drvdata(&pcidev->dev, NULL); + iounmap(vcrdr_chip->mmiobase); + destroy_workqueue(vcrdr_chip->card_detect_queue); + kfree(vcrdr_chip); + pci_release_regions(pcidev); + pci_disable_device(pcidev); +} + +#ifdef CONFIG_PM +static void via_save_pcicfg(struct pci_dev *pcidev, + struct via_crdr_chip *vcrdr_chip) +{ + int i; + + for (i = 0; i < 0x42; i++) + pci_read_config_byte(pcidev, i, &(vcrdr_chip->pci_cfg_bak[i])); +} + +static void via_restore_pcicfg(struct pci_dev *pcidev, + struct via_crdr_chip *vcrdr_chip) +{ + int i; + + for (i = 0; i < 0x42; i++) + pci_write_config_byte(pcidev, i, vcrdr_chip->pci_cfg_bak[i]); +} + +static void via_init_sdc_pm(struct via_crdr_chip *vcrdr_chip) +{ + struct sdhcreg *pm_sdhcreg; + void __iomem *addrbase; + u32 lenreg; + u16 status; + + pm_sdhcreg = &(vcrdr_chip->pm_sdhc_reg); + addrbase = vcrdr_chip->sdhc_mmiobase; + + writel(0x0, addrbase + SDINTMASK_REG); + + lenreg = 0x1ff; + lenreg |= SD_BLKLEN_GPIDET | SD_BLKLEN_INTEN; + lenreg |= 0x80000; + writel(lenreg, addrbase + SDBLKLEN_REG); + + status = readw(addrbase + SDSTATUS_REG); + status &= SD_STS_W1C_MASK; + writew(status, addrbase + SDSTATUS_REG); + + status = readw(addrbase + SDSTATUS_REG2); + status |= SD_STS_CFE; + writew(status, addrbase + SDSTATUS_REG2); + + writel(pm_sdhcreg->sdcontrol_reg, addrbase + SDCONTROL_REG); + writel(pm_sdhcreg->sdcmdarg_reg, addrbase + SDCMDARG_REG); + writel(pm_sdhcreg->sdintmask_reg, addrbase + SDINTMASK_REG); + writel(pm_sdhcreg->sdrsptmo_reg, addrbase + SDRSPTMO_REG); + writel(pm_sdhcreg->sdclksel_reg, addrbase + SDCLKSEL_REG); + writel(pm_sdhcreg->sdextctrl_reg, addrbase + SDEXTCTRL_REG); + + addrbase = vcrdr_chip->pcictrl_mmiobase; + writeb(PCI_CLK_375K, addrbase + PCISDCCLK_REG); + + via_print_pcictrl(vcrdr_chip); + via_print_sdchc(vcrdr_chip); +} + +static int via_chip_suspend(struct pci_dev *pcidev, pm_message_t state) +{ + struct via_crdr_mmc_host *sdhost; + struct via_crdr_chip *vcrdr_chip; + int ret = 0; + + vcrdr_chip = pci_get_drvdata(pcidev); + sdhost = vcrdr_chip->sdc; + + flush_workqueue(vcrdr_chip->card_detect_queue); + + via_save_pcicfg(pcidev, vcrdr_chip); + via_save_pcictrlreg(vcrdr_chip); + via_save_sdcreg(vcrdr_chip); + + switch (vcrdr_chip->cur_device) { + case DEV_SDC: + ret = mmc_suspend_host(sdhost->mmc, state); + break; + default: + break; + } + + return ret; +} + +static int via_chip_resume(struct pci_dev *pcidev) +{ + struct via_crdr_mmc_host *sdhost; + struct via_crdr_chip *vcrdr_chip; + int ret = 0; + u8 gatt; + + vcrdr_chip = pci_get_drvdata(pcidev); + sdhost = vcrdr_chip->sdc; + + gatt = PCI_CLKGATT_POWSEL | PCI_CLKGATT_POWOFF; + writeb(gatt, vcrdr_chip->pcictrl_mmiobase + PCICLKGATT_REG); + msleep(3); + gatt |= PCI_CLKGATT_SOFTRST; + writeb(gatt, vcrdr_chip->pcictrl_mmiobase + PCICLKGATT_REG); + msleep(3); + + msleep(100); + + via_restore_pcicfg(pcidev, vcrdr_chip); + via_restore_pcictrlreg(vcrdr_chip); + via_init_sdc_pm(vcrdr_chip); + + switch (vcrdr_chip->cur_device) { + case DEV_SDC: + ret = mmc_resume_host(sdhost->mmc); + break; + default: + break; + } + + return ret; +} + +#else /* CONFIG_PM */ + +#define via_chip_suspend NULL +#define via_chip_resume NULL + +#endif /* CONFIG_PM */ + +static struct pci_driver via_sd_driver = { + .name = DRV_NAME, + .id_table = via_ids, + .probe = via_chip_probe, + .remove = __devexit_p(via_chip_remove), + .suspend = via_chip_suspend, + .resume = via_chip_resume, +}; + +static int __init via_sd_drv_init(void) +{ + pr_info(DRV_NAME ": VIA SD/MMC Card Reader driver\n"); + pr_info(DRV_NAME ": Copyright(c) VIA Technologies Inc.\n"); + + return pci_register_driver(&via_sd_driver); +} + +static void __exit via_sd_drv_exit(void) +{ + pci_unregister_driver(&via_sd_driver); +} + +module_init(via_sd_drv_init); +module_exit(via_sd_drv_exit); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("VIA Technologies Inc."); +MODULE_DESCRIPTION("VIA SD/MMC Card Interface driver"); +MODULE_VERSION(DRIVER_VERSION); _ Patches currently in -mm which might be from josephchan@xxxxxxxxxx are via-sdmmc-via-msp-card-reader-driver-support.patch viafb-returns-0-two-too-early.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html