From 527afd0e9ad14751e4b26c70aa9e9883c839218e Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Fri, 30 Nov 2012 10:53:47 +0000 Subject: remove target This target is unused, does not support any off the shelf hardware and has been a maintenance burden for quite some time now. Signed-off-by: Florian Fainelli SVN-Revision: 34430 --- .../ubicom32/files/drivers/mmc/host/ubicom32sd.c | 773 --------------------- 1 file changed, 773 deletions(-) delete mode 100644 target/linux/ubicom32/files/drivers/mmc/host/ubicom32sd.c (limited to 'target/linux/ubicom32/files/drivers/mmc/host/ubicom32sd.c') diff --git a/target/linux/ubicom32/files/drivers/mmc/host/ubicom32sd.c b/target/linux/ubicom32/files/drivers/mmc/host/ubicom32sd.c deleted file mode 100644 index 107c92a746..0000000000 --- a/target/linux/ubicom32/files/drivers/mmc/host/ubicom32sd.c +++ /dev/null @@ -1,773 +0,0 @@ -/* - * drivers/mmc/host/ubicom32sd.c - * Ubicom32 Secure Digital Host Controller Interface driver - * - * (C) Copyright 2009, Ubicom, Inc. - * - * This file is part of the Ubicom32 Linux Kernel Port. - * - * The Ubicom32 Linux Kernel Port 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. - * - * The Ubicom32 Linux Kernel Port 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 the Ubicom32 Linux Kernel Port. If not, - * see . - */ - -#include -#include -#include -#include -#include -#include -#include - -#include - -#define DRIVER_NAME "ubicom32sd" - -#define sd_printk(...) -//#define sd_printk printk - -#define SDTIO_VP_VERSION 3 - -#define SDTIO_MAX_SG_BLOCKS 16 - -enum sdtio_commands { - SDTIO_COMMAND_NOP, - SDTIO_COMMAND_SETUP, - SDTIO_COMMAND_SETUP_SDIO, - SDTIO_COMMAND_EXECUTE, - SDTIO_COMMAND_RESET, -}; - -#define SDTIO_COMMAND_SHIFT 24 -#define SDTIO_COMMAND_FLAG_STOP_RSP_CRC (1 << 10) -#define SDTIO_COMMAND_FLAG_STOP_RSP_136 (1 << 9) -#define SDTIO_COMMAND_FLAG_STOP_RSP (1 << 8) -#define SDTIO_COMMAND_FLAG_STOP_CMD (1 << 7) -#define SDTIO_COMMAND_FLAG_DATA_STREAM (1 << 6) -#define SDTIO_COMMAND_FLAG_DATA_RD (1 << 5) -#define SDTIO_COMMAND_FLAG_DATA_WR (1 << 4) -#define SDTIO_COMMAND_FLAG_CMD_RSP_CRC (1 << 3) -#define SDTIO_COMMAND_FLAG_CMD_RSP_136 (1 << 2) -#define SDTIO_COMMAND_FLAG_CMD_RSP (1 << 1) -#define SDTIO_COMMAND_FLAG_CMD (1 << 0) - -/* - * SDTIO_COMMAND_SETUP_SDIO - */ -#define SDTIO_COMMAND_FLAG_SDIO_INT_EN (1 << 0) - -/* - * SDTIO_COMMAND_SETUP - * clock speed in arg - */ -#define SDTIO_COMMAND_FLAG_4BIT (1 << 3) -#define SDTIO_COMMAND_FLAG_1BIT (1 << 2) -#define SDTIO_COMMAND_FLAG_SET_CLOCK (1 << 1) -#define SDTIO_COMMAND_FLAG_SET_WIDTH (1 << 0) - -#define SDTIO_COMMAND_FLAG_CMD_RSP_MASK (SDTIO_COMMAND_FLAG_CMD_RSP | SDTIO_COMMAND_FLAG_CMD_RSP_136) -#define SDTIO_COMMAND_FLAG_STOP_RSP_MASK (SDTIO_COMMAND_FLAG_STOP_RSP | SDTIO_COMMAND_FLAG_STOP_RSP_136) -#define SDTIO_COMMAND_FLAG_RSP_MASK (SDTIO_COMMAND_FLAG_CMD_RSP_MASK | SDTIO_COMMAND_FLAG_STOP_RSP_MASK) - -struct sdtio_vp_sg { - volatile void *addr; - volatile u32_t len; -}; - -#define SDTIO_VP_INT_STATUS_DONE (1 << 31) -#define SDTIO_VP_INT_STATUS_SDIO_INT (1 << 10) -#define SDTIO_VP_INT_STATUS_DATA_CRC_ERR (1 << 9) -#define SDTIO_VP_INT_STATUS_DATA_PROG_ERR (1 << 8) -#define SDTIO_VP_INT_STATUS_DATA_TIMEOUT (1 << 7) -#define SDTIO_VP_INT_STATUS_STOP_RSP_CRC (1 << 6) -#define SDTIO_VP_INT_STATUS_STOP_RSP_TIMEOUT (1 << 5) -#define SDTIO_VP_INT_STATUS_CMD_RSP_CRC (1 << 4) -#define SDTIO_VP_INT_STATUS_CMD_RSP_TIMEOUT (1 << 3) -#define SDTIO_VP_INT_STATUS_CMD_TIMEOUT (1 << 2) -#define SDTIO_VP_INT_STATUS_CARD1_INSERT (1 << 1) -#define SDTIO_VP_INT_STATUS_CARD0_INSERT (1 << 0) - -struct sdtio_vp_regs { - u32_t version; - u32_t f_max; - u32_t f_min; - - volatile u32_t int_status; - - volatile u32_t command; - volatile u32_t arg; - - volatile u32_t cmd_opcode; - volatile u32_t cmd_arg; - volatile u32_t cmd_rsp0; - volatile u32_t cmd_rsp1; - volatile u32_t cmd_rsp2; - volatile u32_t cmd_rsp3; - - volatile u32_t stop_opcode; - volatile u32_t stop_arg; - volatile u32_t stop_rsp0; - volatile u32_t stop_rsp1; - volatile u32_t stop_rsp2; - volatile u32_t stop_rsp3; - - volatile u32_t data_timeout_ns; - volatile u16_t data_blksz; - volatile u16_t data_blkct; - volatile u32_t data_bytes_transferred; - volatile u32_t sg_len; - struct sdtio_vp_sg sg[SDTIO_MAX_SG_BLOCKS]; -}; - -struct ubicom32sd_data { - const struct ubicom32sd_platform_data *pdata; - - struct mmc_host *mmc; - - /* - * Lock used to protect the data structure - spinlock_t lock; - */ - int int_en; - int int_pend; - - /* - * Receive and transmit interrupts used for communicating - * with hardware - */ - int irq_tx; - int irq_rx; - - /* - * Current outstanding mmc request - */ - struct mmc_request *mrq; - - /* - * Hardware registers - */ - struct sdtio_vp_regs *regs; -}; - -/*****************************************************************************\ - * * - * Suspend/resume * - * * -\*****************************************************************************/ - -#if 0//def CONFIG_PM - -int ubicom32sd_suspend_host(struct ubicom32sd_host *host, pm_message_t state) -{ - int ret; - - ret = mmc_suspend_host(host->mmc, state); - if (ret) - return ret; - - free_irq(host->irq, host); - - return 0; -} - -EXPORT_SYMBOL_GPL(ubicom32sd_suspend_host); - -int ubicom32sd_resume_host(struct ubicom32sd_host *host) -{ - int ret; - - if (host->flags & UBICOM32SD_USE_DMA) { - if (host->ops->enable_dma) - host->ops->enable_dma(host); - } - - ret = request_irq(host->irq, ubicom32sd_irq, IRQF_SHARED, - mmc_hostname(host->mmc), host); - if (ret) - return ret; - - ubicom32sd_init(host); - mmiowb(); - - ret = mmc_resume_host(host->mmc); - if (ret) - return ret; - - return 0; -} - -EXPORT_SYMBOL_GPL(ubicom32sd_resume_host); - -#endif /* CONFIG_PM */ - -/* - * ubicom32sd_send_command_sync - */ -static void ubicom32sd_send_command_sync(struct ubicom32sd_data *ud, u32_t command, u32_t arg) -{ - ud->regs->command = command; - ud->regs->arg = arg; - ubicom32_set_interrupt(ud->irq_tx); - while (ud->regs->command) { - ndelay(100); - } -} - -/* - * ubicom32sd_send_command - */ -static void ubicom32sd_send_command(struct ubicom32sd_data *ud, u32_t command, u32_t arg) -{ - ud->regs->command = command; - ud->regs->arg = arg; - ubicom32_set_interrupt(ud->irq_tx); -} - -/* - * ubicom32sd_reset - */ -static void ubicom32sd_reset(struct ubicom32sd_data *ud) -{ - ubicom32sd_send_command_sync(ud, SDTIO_COMMAND_RESET << SDTIO_COMMAND_SHIFT, 0); - ud->regs->int_status = 0; -} - -/* - * ubicom32sd_mmc_request - */ -static void ubicom32sd_mmc_request(struct mmc_host *mmc, struct mmc_request *mrq) -{ - struct ubicom32sd_data *ud = (struct ubicom32sd_data *)mmc_priv(mmc); - u32_t command = SDTIO_COMMAND_EXECUTE << SDTIO_COMMAND_SHIFT; - int ret = 0; - - WARN(ud->mrq != NULL, "ud->mrq still set to %p\n", ud->mrq); - //pr_debug("send cmd %08x arg %08x flags %08x\n", cmd->opcode, cmd->arg, cmd->flags); - - if (mrq->cmd) { - struct mmc_command *cmd = mrq->cmd; - - sd_printk("%s:\t\t\tsetup cmd %02d arg %08x flags %08x\n", mmc_hostname(mmc), cmd->opcode, cmd->arg, cmd->flags); - - ud->regs->cmd_opcode = cmd->opcode; - ud->regs->cmd_arg = cmd->arg; - - command |= SDTIO_COMMAND_FLAG_CMD; - - if (cmd->flags & MMC_RSP_PRESENT) { - command |= SDTIO_COMMAND_FLAG_CMD_RSP; - } - - if (cmd->flags & MMC_RSP_136) { - command |= SDTIO_COMMAND_FLAG_CMD_RSP_136; - } - - if (cmd->flags & MMC_RSP_CRC) { - command |= SDTIO_COMMAND_FLAG_CMD_RSP_CRC; - } - } - - if (mrq->data) { - struct mmc_data *data = mrq->data; - struct scatterlist *sg = data->sg; - int i; - -printk("%s:\t\t\tsetup data blksz %d num %d sglen=%d fl=%08x Tns=%u\n", mmc_hostname(mmc), data->blksz, data->blocks, data->sg_len, data->flags, data->timeout_ns); - - sd_printk("%s:\t\t\tsetup data blksz %d num %d sglen=%d fl=%08x Tns=%u\n", - mmc_hostname(mmc), data->blksz, data->blocks, data->sg_len, - data->flags, data->timeout_ns); - - if (data->sg_len > SDTIO_MAX_SG_BLOCKS) { - ret = -EINVAL; - data->error = -EINVAL; - goto fail; - } - - ud->regs->data_timeout_ns = data->timeout_ns; - ud->regs->data_blksz = data->blksz; - ud->regs->data_blkct = data->blocks; - ud->regs->sg_len = data->sg_len; - - /* - * Load all of our sg list into the driver sg buffer - */ - for (i = 0; i < data->sg_len; i++) { - sd_printk("%s: sg %d = %p %d\n", mmc_hostname(mmc), i, sg_virt(sg), sg->length); - ud->regs->sg[i].addr = sg_virt(sg); - ud->regs->sg[i].len = sg->length; - if (((u32_t)ud->regs->sg[i].addr & 0x03) || (sg->length & 0x03)) { - sd_printk("%s: Need aligned buffers\n", mmc_hostname(mmc)); - ret = -EINVAL; - data->error = -EINVAL; - goto fail; - } - sg++; - } - if (data->flags & MMC_DATA_READ) { - command |= SDTIO_COMMAND_FLAG_DATA_RD; - } else if (data->flags & MMC_DATA_WRITE) { - command |= SDTIO_COMMAND_FLAG_DATA_WR; - } else if (data->flags & MMC_DATA_STREAM) { - command |= SDTIO_COMMAND_FLAG_DATA_STREAM; - } - } - - if (mrq->stop) { - struct mmc_command *stop = mrq->stop; - sd_printk("%s: \t\t\tsetup stop %02d arg %08x flags %08x\n", mmc_hostname(mmc), stop->opcode, stop->arg, stop->flags); - - ud->regs->stop_opcode = stop->opcode; - ud->regs->stop_arg = stop->arg; - - command |= SDTIO_COMMAND_FLAG_STOP_CMD; - - if (stop->flags & MMC_RSP_PRESENT) { - command |= SDTIO_COMMAND_FLAG_STOP_RSP; - } - - if (stop->flags & MMC_RSP_136) { - command |= SDTIO_COMMAND_FLAG_STOP_RSP_136; - } - - if (stop->flags & MMC_RSP_CRC) { - command |= SDTIO_COMMAND_FLAG_STOP_RSP_CRC; - } - } - - ud->mrq = mrq; - - sd_printk("%s: Sending command %08x\n", mmc_hostname(mmc), command); - - ubicom32sd_send_command(ud, command, 0); - - return; -fail: - sd_printk("%s: mmcreq ret = %d\n", mmc_hostname(mmc), ret); - mrq->cmd->error = ret; - mmc_request_done(mmc, mrq); -} - -/* - * ubicom32sd_mmc_set_ios - */ -static void ubicom32sd_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) -{ - struct ubicom32sd_data *ud = (struct ubicom32sd_data *)mmc_priv(mmc); - u32_t command = SDTIO_COMMAND_SETUP << SDTIO_COMMAND_SHIFT; - u32_t arg = 0; - sd_printk("%s: ios call bw:%u pm:%u clk:%u\n", mmc_hostname(mmc), 1 << ios->bus_width, ios->power_mode, ios->clock); - - switch (ios->bus_width) { - case MMC_BUS_WIDTH_1: - command |= SDTIO_COMMAND_FLAG_SET_WIDTH | SDTIO_COMMAND_FLAG_1BIT; - break; - - case MMC_BUS_WIDTH_4: - command |= SDTIO_COMMAND_FLAG_SET_WIDTH | SDTIO_COMMAND_FLAG_4BIT; - break; - } - - if (ios->clock) { - arg = ios->clock; - command |= SDTIO_COMMAND_FLAG_SET_CLOCK; - } - - switch (ios->power_mode) { - - /* - * Turn off the SD bus (power + clock) - */ - case MMC_POWER_OFF: - gpio_set_value(ud->pdata->cards[0].pin_pwr, !ud->pdata->cards[0].pwr_polarity); - command |= SDTIO_COMMAND_FLAG_SET_CLOCK; - break; - - /* - * Turn on the power to the SD bus - */ - case MMC_POWER_ON: - gpio_set_value(ud->pdata->cards[0].pin_pwr, ud->pdata->cards[0].pwr_polarity); - break; - - /* - * Turn on the clock to the SD bus - */ - case MMC_POWER_UP: - /* - * Done above - */ - break; - } - - ubicom32sd_send_command_sync(ud, command, arg); - - /* - * Let the power settle down - */ - udelay(500); -} - -/* - * ubicom32sd_mmc_get_cd - */ -static int ubicom32sd_mmc_get_cd(struct mmc_host *mmc) -{ - struct ubicom32sd_data *ud = (struct ubicom32sd_data *)mmc_priv(mmc); - sd_printk("%s: get cd %u %u\n", mmc_hostname(mmc), ud->pdata->cards[0].pin_cd, gpio_get_value(ud->pdata->cards[0].pin_cd)); - - return gpio_get_value(ud->pdata->cards[0].pin_cd) ? - ud->pdata->cards[0].cd_polarity : - !ud->pdata->cards[0].cd_polarity; -} - -/* - * ubicom32sd_mmc_get_ro - */ -static int ubicom32sd_mmc_get_ro(struct mmc_host *mmc) -{ - struct ubicom32sd_data *ud = (struct ubicom32sd_data *)mmc_priv(mmc); - sd_printk("%s: get ro %u %u\n", mmc_hostname(mmc), ud->pdata->cards[0].pin_wp, gpio_get_value(ud->pdata->cards[0].pin_wp)); - - return gpio_get_value(ud->pdata->cards[0].pin_wp) ? - ud->pdata->cards[0].wp_polarity : - !ud->pdata->cards[0].wp_polarity; -} - -/* - * ubicom32sd_mmc_enable_sdio_irq - */ -static void ubicom32sd_mmc_enable_sdio_irq(struct mmc_host *mmc, int enable) -{ - struct ubicom32sd_data *ud = (struct ubicom32sd_data *)mmc_priv(mmc); - - ud->int_en = enable; - if (enable && ud->int_pend) { - ud->int_pend = 0; - mmc_signal_sdio_irq(mmc); - } -} - -/* - * ubicom32sd_interrupt - */ -static irqreturn_t ubicom32sd_interrupt(int irq, void *dev) -{ - struct mmc_host *mmc = (struct mmc_host *)dev; - struct mmc_request *mrq; - struct ubicom32sd_data *ud; - u32_t int_status; - - if (!mmc) { - return IRQ_HANDLED; - } - - ud = (struct ubicom32sd_data *)mmc_priv(mmc); - if (!ud) { - return IRQ_HANDLED; - } - - int_status = ud->regs->int_status; - ud->regs->int_status &= ~int_status; - - if (int_status & SDTIO_VP_INT_STATUS_SDIO_INT) { - if (ud->int_en) { - ud->int_pend = 0; - mmc_signal_sdio_irq(mmc); - } else { - ud->int_pend++; - } - } - - if (!(int_status & SDTIO_VP_INT_STATUS_DONE)) { - return IRQ_HANDLED; - } - - mrq = ud->mrq; - if (!mrq) { - sd_printk("%s: Spurious interrupt", mmc_hostname(mmc)); - return IRQ_HANDLED; - } - ud->mrq = NULL; - - /* - * SDTIO_VP_INT_DONE - */ - if (mrq->cmd->flags & MMC_RSP_PRESENT) { - struct mmc_command *cmd = mrq->cmd; - cmd->error = 0; - - if ((cmd->flags & MMC_RSP_CRC) && (int_status & SDTIO_VP_INT_STATUS_CMD_RSP_CRC)) { - cmd->error = -EILSEQ; - } else if (int_status & SDTIO_VP_INT_STATUS_CMD_RSP_TIMEOUT) { - cmd->error = -ETIMEDOUT; - goto done; - } else if (cmd->flags & MMC_RSP_136) { - cmd->resp[0] = ud->regs->cmd_rsp0; - cmd->resp[1] = ud->regs->cmd_rsp1; - cmd->resp[2] = ud->regs->cmd_rsp2; - cmd->resp[3] = ud->regs->cmd_rsp3; - } else { - cmd->resp[0] = ud->regs->cmd_rsp0; - } - sd_printk("%s:\t\t\tResponse %08x %08x %08x %08x err=%d\n", mmc_hostname(mmc), cmd->resp[0], cmd->resp[1], cmd->resp[2], cmd->resp[3], cmd->error); - } - - if (mrq->data) { - struct mmc_data *data = mrq->data; - - if (int_status & SDTIO_VP_INT_STATUS_DATA_TIMEOUT) { - data->error = -ETIMEDOUT; - sd_printk("%s:\t\t\tData Timeout\n", mmc_hostname(mmc)); - goto done; - } else if (int_status & SDTIO_VP_INT_STATUS_DATA_CRC_ERR) { - data->error = -EILSEQ; - sd_printk("%s:\t\t\tData CRC\n", mmc_hostname(mmc)); - goto done; - } else if (int_status & SDTIO_VP_INT_STATUS_DATA_PROG_ERR) { - data->error = -EILSEQ; - sd_printk("%s:\t\t\tData Program Error\n", mmc_hostname(mmc)); - goto done; - } else { - data->error = 0; - data->bytes_xfered = ud->regs->data_bytes_transferred; - } - } - - if (mrq->stop && (mrq->stop->flags & MMC_RSP_PRESENT)) { - struct mmc_command *stop = mrq->stop; - stop->error = 0; - - if ((stop->flags & MMC_RSP_CRC) && (int_status & SDTIO_VP_INT_STATUS_STOP_RSP_CRC)) { - stop->error = -EILSEQ; - } else if (int_status & SDTIO_VP_INT_STATUS_STOP_RSP_TIMEOUT) { - stop->error = -ETIMEDOUT; - goto done; - } else if (stop->flags & MMC_RSP_136) { - stop->resp[0] = ud->regs->stop_rsp0; - stop->resp[1] = ud->regs->stop_rsp1; - stop->resp[2] = ud->regs->stop_rsp2; - stop->resp[3] = ud->regs->stop_rsp3; - } else { - stop->resp[0] = ud->regs->stop_rsp0; - } - sd_printk("%s:\t\t\tStop Response %08x %08x %08x %08x err=%d\n", mmc_hostname(mmc), stop->resp[0], stop->resp[1], stop->resp[2], stop->resp[3], stop->error); - } - -done: - mmc_request_done(mmc, mrq); - - return IRQ_HANDLED; -} - -static struct mmc_host_ops ubicom32sd_ops = { - .request = ubicom32sd_mmc_request, - .set_ios = ubicom32sd_mmc_set_ios, - .get_ro = ubicom32sd_mmc_get_ro, - .get_cd = ubicom32sd_mmc_get_cd, - .enable_sdio_irq = ubicom32sd_mmc_enable_sdio_irq, -}; - -/* - * ubicom32sd_probe - */ -static int __devinit ubicom32sd_probe(struct platform_device *pdev) -{ - struct ubicom32sd_platform_data *pdata = (struct ubicom32sd_platform_data *)pdev->dev.platform_data; - struct mmc_host *mmc; - struct ubicom32sd_data *ud; - struct resource *res_regs; - struct resource *res_irq_tx; - struct resource *res_irq_rx; - int ret; - - /* - * Get our resources, regs is the hardware driver base address - * and the tx and rx irqs are used to communicate with the - * hardware driver. - */ - res_regs = platform_get_resource(pdev, IORESOURCE_MEM, 0); - res_irq_tx = platform_get_resource(pdev, IORESOURCE_IRQ, 0); - res_irq_rx = platform_get_resource(pdev, IORESOURCE_IRQ, 1); - if (!res_regs || !res_irq_tx || !res_irq_rx) { - ret = -EINVAL; - goto fail; - } - - /* - * Reserve any gpios we need - */ - ret = gpio_request(pdata->cards[0].pin_wp, "sd-wp"); - if (ret) { - goto fail; - } - gpio_direction_input(pdata->cards[0].pin_wp); - - ret = gpio_request(pdata->cards[0].pin_cd, "sd-cd"); - if (ret) { - goto fail_cd; - } - gpio_direction_input(pdata->cards[0].pin_cd); - - /* - * HACK: for the dual port controller on port F, we don't support the second port right now - */ - if (pdata->ncards > 1) { - ret = gpio_request(pdata->cards[1].pin_pwr, "sd-pwr"); - gpio_direction_output(pdata->cards[1].pin_pwr, !pdata->cards[1].pwr_polarity); - gpio_direction_output(pdata->cards[1].pin_pwr, pdata->cards[1].pwr_polarity); - } - - ret = gpio_request(pdata->cards[0].pin_pwr, "sd-pwr"); - if (ret) { - goto fail_pwr; - } - gpio_direction_output(pdata->cards[0].pin_pwr, !pdata->cards[0].pwr_polarity); - - /* - * Allocate the MMC driver, it includes memory for our data. - */ - mmc = mmc_alloc_host(sizeof(struct ubicom32sd_data), &pdev->dev); - if (!mmc) { - ret = -ENOMEM; - goto fail_mmc; - } - ud = (struct ubicom32sd_data *)mmc_priv(mmc); - ud->mmc = mmc; - ud->pdata = pdata; - ud->regs = (struct sdtio_vp_regs *)res_regs->start; - ud->irq_tx = res_irq_tx->start; - ud->irq_rx = res_irq_rx->start; - platform_set_drvdata(pdev, mmc); - - ret = request_irq(ud->irq_rx, ubicom32sd_interrupt, IRQF_DISABLED, mmc_hostname(mmc), mmc); - if (ret) { - goto fail_mmc; - } - - /* - * Fill in the mmc structure - */ - mmc->ops = &ubicom32sd_ops; - mmc->caps = MMC_CAP_4_BIT_DATA | MMC_CAP_NEEDS_POLL | MMC_CAP_SDIO_IRQ | - MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED; - - mmc->f_min = ud->regs->f_min; - mmc->f_max = ud->regs->f_max; - mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34; - - /* - * Setup some restrictions on transfers - * - * We allow up to SDTIO_MAX_SG_BLOCKS of data to DMA into, there are - * not really any "max_seg_size", "max_req_size", or "max_blk_count" - * restrictions (must be less than U32_MAX though), pick - * something large?!... - * - * The hardware can do up to 4095 bytes per block, since the spec - * only requires 2048, we'll set it to that and not worry about - * potential weird blk lengths. - */ - mmc->max_hw_segs = SDTIO_MAX_SG_BLOCKS; - mmc->max_phys_segs = SDTIO_MAX_SG_BLOCKS; - mmc->max_seg_size = 1024 * 1024; - mmc->max_req_size = 1024 * 1024; - mmc->max_blk_count = 1024; - - mmc->max_blk_size = 2048; - - ubicom32sd_reset(ud); - - /* - * enable interrupts - */ - ud->int_en = 0; - ubicom32sd_send_command_sync(ud, SDTIO_COMMAND_SETUP_SDIO << SDTIO_COMMAND_SHIFT | SDTIO_COMMAND_FLAG_SDIO_INT_EN, 0); - - mmc_add_host(mmc); - - printk(KERN_INFO "%s at %p, irq %d/%d\n", mmc_hostname(mmc), - ud->regs, ud->irq_tx, ud->irq_rx); - return 0; - -fail_mmc: - gpio_free(pdata->cards[0].pin_pwr); -fail_pwr: - gpio_free(pdata->cards[0].pin_cd); -fail_cd: - gpio_free(pdata->cards[0].pin_wp); -fail: - return ret; -} - -/* - * ubicom32sd_remove - */ -static int __devexit ubicom32sd_remove(struct platform_device *pdev) -{ - struct mmc_host *mmc = platform_get_drvdata(pdev); - - platform_set_drvdata(pdev, NULL); - - if (mmc) { - struct ubicom32sd_data *ud = (struct ubicom32sd_data *)mmc_priv(mmc); - - gpio_free(ud->pdata->cards[0].pin_pwr); - gpio_free(ud->pdata->cards[0].pin_cd); - gpio_free(ud->pdata->cards[0].pin_wp); - - mmc_remove_host(mmc); - mmc_free_host(mmc); - } - - /* - * Note that our data is allocated as part of the mmc structure - * so we don't need to free it. - */ - return 0; -} - -static struct platform_driver ubicom32sd_driver = { - .driver = { - .name = DRIVER_NAME, - .owner = THIS_MODULE, - }, - .probe = ubicom32sd_probe, - .remove = __devexit_p(ubicom32sd_remove), -#if 0 - .suspend = ubicom32sd_suspend, - .resume = ubicom32sd_resume, -#endif -}; - -/* - * ubicom32sd_init - */ -static int __init ubicom32sd_init(void) -{ - return platform_driver_register(&ubicom32sd_driver); -} -module_init(ubicom32sd_init); - -/* - * ubicom32sd_exit - */ -static void __exit ubicom32sd_exit(void) -{ - platform_driver_unregister(&ubicom32sd_driver); -} -module_exit(ubicom32sd_exit); - -MODULE_AUTHOR("Patrick Tjin"); -MODULE_DESCRIPTION("Ubicom32 Secure Digital Host Controller Interface driver"); -MODULE_LICENSE("GPL"); -- cgit v1.2.3