@@ -29,6 +29,7 @@ COBJS-$(CONFIG_ATMEL_MCI) += atmel_mci.o
COBJS-$(CONFIG_BFIN_SDH) += bfin_sdh.o
COBJS-$(CONFIG_DAVINCI_MMC) += davinci_mmc.o
COBJS-$(CONFIG_FSL_ESDHC) += fsl_esdhc.o
+COBJS-$(CONFIG_FTSDC010) += ftsdc010_esdhc.o
COBJS-$(CONFIG_GENERIC_MMC) += mmc.o
COBJS-$(CONFIG_GENERIC_ATMEL_MCI) += gen_atmel_mci.o
COBJS-$(CONFIG_MMC_SPI) += mmc_spi.o
new file mode 100644
@@ -0,0 +1,666 @@
+/*
+ * Copyright (C) 2011 Andes Technology Corporation
+ * Macpaul Lin, Andes Technology Corporation <macpaul@andestech.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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 <config.h>
+#include <common.h>
+#include <mmc.h>
+
+#include <asm/io.h>
+#include <faraday/ftsdc010.h>
+
+/*
+ * supported mmc hosts
+ * setting the number CONFIG_FTSDC010_NUMBER in your configuration file.
+ */
+static struct mmc mmc_dev[CONFIG_FTSDC010_NUMBER];
+static struct mmc_host mmc_host[CONFIG_FTSDC010_NUMBER];
+
+static struct ftsdc010_mmc *ftsdc010_get_base_mmc(int dev_index)
+{
+ unsigned long offset = dev_index * sizeof(struct ftsdc010_mmc);
+ return (struct ftsdc010_mmc *)(CONFIG_FTSDC010_BASE + offset);
+}
+
+#ifdef DEBUG
+static void ftsdc010_dump_reg(struct mmc_host *host)
+{
+ debug("cmd: %08x\n", readl(&host->reg->cmd));
+ debug("argu: %08x\n", readl(&host->reg->argu));
+ debug("rsp0: %08x\n", readl(&host->reg->rsp0));
+ debug("rsp1: %08x\n", readl(&host->reg->rsp1));
+ debug("rsp2: %08x\n", readl(&host->reg->rsp2));
+ debug("rsp3: %08x\n", readl(&host->reg->rsp3));
+ debug("rsp_cmd: %08x\n", readl(&host->reg->rsp_cmd));
+ debug("dcr: %08x\n", readl(&host->reg->dcr));
+ debug("dtr: %08x\n", readl(&host->reg->dtr));
+ debug("dlr: %08x\n", readl(&host->reg->dlr));
+ debug("status: %08x\n", readl(&host->reg->status));
+ debug("clr: %08x\n", readl(&host->reg->clr));
+ debug("int_mask: %08x\n", readl(&host->reg->int_mask));
+ debug("pcr: %08x\n", readl(&host->reg->pcr));
+ debug("ccr: %08x\n", readl(&host->reg->ccr));
+ debug("bwr: %08x\n", readl(&host->reg->bwr));
+ debug("dwr: %08x\n", readl(&host->reg->dwr));
+ debug("feature: %08x\n", readl(&host->reg->feature));
+ debug("rev: %08x\n", readl(&host->reg->rev));
+}
+#endif
+
+static unsigned int enable_imask(struct ftsdc010_mmc *reg, unsigned int imask)
+{
+ unsigned int newmask;
+
+ newmask = readl(®->int_mask);
+ newmask |= imask;
+
+ writel(newmask, ®->int_mask);
+
+ return newmask;
+}
+
+static void mmc_pio_read(struct mmc_host *host, char *buf, unsigned int size)
+{
+ unsigned int fifo;
+ unsigned int fifo_words;
+ unsigned int *ptr;
+ unsigned int status;
+ unsigned int retry = 0;
+
+ /* get_data_buffer */
+ ptr = (unsigned int *)buf;
+
+ while (size) {
+ status = readl(&host->reg->status);
+
+ if (status & FTSDC010_STATUS_FIFO_ORUN) {
+ fifo = host->fifo_len > size ?
+ size : host->fifo_len;
+
+ size -= fifo;
+
+ fifo_words = fifo >> 2;
+
+ while (fifo_words--)
+ *ptr++ = readl(&host->reg->dwr);
+
+ /*
+ * for adding some delays for SD card to put
+ * data into FIFO again
+ */
+ udelay(4*FTSDC010_DELAY_UNIT);
+
+#ifdef CONFIG_FTSDC010_SDIO
+ /* sdio allow non-power-of-2 blksz */
+ if (fifo & 3) {
+ unsigned int n = fifo & 3;
+ unsigned int data = readl(&host->reg->dwr);
+
+ unsigned char *p = (unsigned char *)ptr;
+
+ while (n--) {
+ *p++ = data;
+ data >>= 8;
+ }
+ }
+#endif
+ } else {
+ udelay(1);
+ if (++retry >= FTSDC010_PIO_RETRY) {
+ debug("%s: PIO_RETRY timeout\n", __func__);
+ return;
+ }
+ }
+ }
+}
+
+static void mmc_pio_write(struct mmc_host *host, const char *buf,
+ unsigned int size)
+{
+ unsigned int fifo;
+ unsigned int *ptr;
+ unsigned int status;
+ unsigned int retry = 0;
+
+ /* get data buffer */
+ ptr = (unsigned int *)buf;
+
+ while (size) {
+ status = readl(&host->reg->status);
+
+ if (status & FTSDC010_STATUS_FIFO_ORUN) {
+ fifo = host->fifo_len > size ?
+ size : host->fifo_len;
+
+ size -= fifo;
+
+ fifo = (fifo + 3) >> 2;
+
+ while (fifo--) {
+ writel(*ptr, &host->reg->dwr);
+ ptr++;
+ }
+
+ } else {
+ udelay(1);
+ if (++retry >= FTSDC010_PIO_RETRY) {
+ debug("%s: PIO_RETRY timeout\n", __func__);
+ return;
+ }
+ }
+ }
+}
+
+static int mmc_pio_check_status(struct mmc *mmc, struct mmc_cmd *cmd,
+ struct mmc_data *data)
+{
+ struct mmc_host *host = (struct mmc_host *)mmc->priv;
+
+ unsigned int sta, clear;
+ unsigned int i;
+
+ /* check response and hardware status */
+ clear = 0;
+
+ /* chech CMD_SEND */
+ for (i = 0; i < FTSDC010_CMD_RETRY; i++) {
+ sta = readl(&host->reg->status);
+ /* Command Complete */
+ if (sta & FTSDC010_STATUS_CMD_SEND) {
+ if (!data)
+ clear |= FTSDC010_CLR_CMD_SEND;
+ break;
+ }
+ }
+
+ if (i > FTSDC010_CMD_RETRY) {
+ printf("%s: send command timeout\n", __func__);
+ return TIMEOUT;
+ }
+
+ /* debug: print status register and command index*/
+ debug("sta: %08x cmd %d\n", sta, cmd->cmdidx);
+
+ /* handle data FIFO */
+ if ((sta & FTSDC010_STATUS_FIFO_ORUN) ||
+ (sta & FTSDC010_STATUS_FIFO_URUN)) {
+
+ /* Wrong DATA FIFO Flag */
+ if (data == NULL)
+ printf("%s, data fifo wrong: sta: %08x cmd %d\n",
+ __func__, sta, cmd->cmdidx);
+
+ if (sta & FTSDC010_STATUS_FIFO_ORUN)
+ clear |= FTSDC010_STATUS_FIFO_ORUN;
+ if (sta & FTSDC010_STATUS_FIFO_URUN)
+ clear |= FTSDC010_STATUS_FIFO_URUN;
+ }
+
+ /* check RSP TIMEOUT or FAIL */
+ if (sta & FTSDC010_STATUS_RSP_TIMEOUT) {
+ /* RSP TIMEOUT */
+ debug("%s: RSP timeout: sta: %08x cmd %d\n",
+ __func__, sta, cmd->cmdidx);
+
+ clear |= FTSDC010_CLR_RSP_TIMEOUT;
+ writel(clear, &host->reg->clr);
+
+ return TIMEOUT;
+ } else if (sta & FTSDC010_STATUS_RSP_CRC_FAIL) {
+ /* clear response fail bit */
+ debug("%s: RSP CRC FAIL: sta: %08x cmd %d\n",
+ __func__, sta, cmd->cmdidx);
+
+ clear |= FTSDC010_CLR_RSP_CRC_FAIL;
+ writel(clear, &host->reg->clr);
+
+ return -1;
+ } else if (sta & FTSDC010_STATUS_RSP_CRC_OK) {
+
+ /* clear response CRC OK bit */
+ clear |= FTSDC010_CLR_RSP_CRC_OK;
+ }
+
+ /* check DATA TIMEOUT or FAIL */
+ if (data) {
+ if (sta & FTSDC010_STATUS_DATA_TIMEOUT) {
+ /* DATA TIMEOUT */
+ debug("%s: DATA TIMEOUT: sta: %08x\n",
+ __func__, sta);
+
+ clear |= FTSDC010_STATUS_DATA_TIMEOUT;
+ writel(sta, &host->reg->clr);
+ return TIMEOUT;
+ } else if (sta & FTSDC010_STATUS_DATA_CRC_FAIL) {
+ /* Error Interrupt */
+ debug("%s: DATA CRC FAIL: sta: %08x\n",
+ __func__, sta);
+
+ clear |= FTSDC010_STATUS_DATA_CRC_FAIL;
+ writel(clear, &host->reg->clr);
+
+ return -1;
+ } else if (sta & FTSDC010_STATUS_DATA_END) {
+ /* Transfer Complete */
+ clear |= FTSDC010_STATUS_DATA_END;
+ }
+ }
+
+ /* transaction is success and clear status register */
+ writel(sta, &host->reg->clr);
+
+ return 0;
+}
+
+static int mmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd,
+ struct mmc_data *data)
+{
+ struct mmc_host *host = (struct mmc_host *)mmc->priv;
+
+ unsigned int ccon;
+ unsigned int mask, tmpmask;
+ unsigned int ret;
+
+ if (data)
+ mask = FTSDC010_INT_MASK_RSP_TIMEOUT;
+ else if (cmd->resp_type & MMC_RSP_PRESENT)
+ mask = FTSDC010_INT_MASK_RSP_TIMEOUT;
+ else
+ mask = FTSDC010_INT_MASK_CMD_SEND;
+
+ /* write argu reg */
+ debug("%s: cmd->arg: %08x\n", __func__, cmd->cmdarg);
+ writel(cmd->cmdarg, &host->reg->argu);
+
+ /* setup cmd reg */
+ debug("cmd: %d\n", cmd->cmdidx);
+ debug("resp: %08x\n", cmd->resp_type);
+
+ /* setup commnad */
+ ccon = FTSDC010_CMD_IDX(cmd->cmdidx);
+
+ /* setup command flags */
+ ccon |= FTSDC010_CMD_CMD_EN;
+
+ /*
+ * This hardware didn't support specific commands for mapping
+ * MMC_RSP_BUSY and MMC_RSP_OPCODE. Hence we don't deal with it.
+ */
+ if (cmd->resp_type & MMC_RSP_PRESENT) {
+ ccon |= FTSDC010_CMD_NEED_RSP;
+ mask |= FTSDC010_INT_MASK_RSP_CRC_OK |
+ FTSDC010_INT_MASK_RSP_CRC_FAIL;
+ }
+
+ if (cmd->resp_type & MMC_RSP_136)
+ ccon |= FTSDC010_CMD_LONG_RSP;
+
+ /* In Linux driver, MMC_CMD_APP_CMD is checked in last_opcode */
+ if (host->last_opcode == MMC_CMD_APP_CMD)
+ ccon |= FTSDC010_CMD_APP_CMD;
+
+#ifdef CONFIG_FTSDC010_SDIO
+ scon = readl(&host->reg->sdio_ctrl1);
+ if (host->mmc->card != NULL && mmc_card_sdio(host->mmc->card))
+ scon |= FTSDC010_SDIO_CTRL1_SDIO_ENABLE;
+ else
+ scon &= ~FTSDC010_SDIO_CTRL1_SDIO_ENABLE;
+ writel(scon, &host->reg->sdio_ctrl1);
+#endif
+
+ /* record last opcode for specifing the command type to hardware */
+ host->last_opcode = cmd->cmdidx;
+
+ /* write int_mask reg */
+ tmpmask = readl(&host->reg->int_mask);
+ tmpmask |= mask;
+ writel(tmpmask, &host->reg->int_mask);
+
+ /* write cmd reg */
+ debug("%s: ccon: %08x\n", __func__, ccon);
+ writel(ccon, &host->reg->cmd);
+ udelay(4*FTSDC010_DELAY_UNIT);
+
+ /* read/write data */
+ if (data && (data->flags & MMC_DATA_READ)) {
+ mmc_pio_read(host, data->dest,
+ data->blocksize * data->blocks);
+ } else if (data && (data->flags & MMC_DATA_WRITE)) {
+ mmc_pio_write(host, data->src,
+ data->blocksize * data->blocks);
+ }
+
+ /* pio check response status */
+ ret = mmc_pio_check_status(mmc, cmd, data);
+ if (!ret) {
+ /* if it is long response */
+ if (ccon & FTSDC010_CMD_LONG_RSP) {
+ cmd->response[0] = readl(&host->reg->rsp3);
+ cmd->response[1] = readl(&host->reg->rsp2);
+ cmd->response[2] = readl(&host->reg->rsp1);
+ cmd->response[3] = readl(&host->reg->rsp0);
+
+ } else {
+ cmd->response[0] = readl(&host->reg->rsp0);
+ }
+ }
+
+ udelay(FTSDC010_DELAY_UNIT);
+ return ret;
+}
+
+static unsigned int cal_blksz(unsigned int blksz)
+{
+ unsigned int blksztwo = 0;
+
+ while (blksz >>= 1)
+ blksztwo++;
+
+ return blksztwo;
+}
+
+static int ftsdc010_setup_data(struct mmc *mmc, struct mmc_data *data)
+{
+ struct mmc_host *host = (struct mmc_host *)mmc->priv;
+ unsigned int dcon, newmask;
+
+ /* configure data transfer paramter */
+ if (!data)
+ return 0;
+
+ if (((data->blocksize - 1) & data->blocksize) != 0) {
+ printf("%s: can't do non-power-of 2 sized block transfers"
+ " (blksz %d)\n", __func__, data->blocksize);
+ return -1;
+ }
+
+ if (data->blocksize <= 2) {
+ /* We cannot deal with unaligned blocks with more than
+ * one block being transfered. */
+
+ if (data->blocks > 1) {
+ printf("%s: can't do non-word sized block transfers"
+ " (blksz %d)\n", __func__, data->blocksize);
+ return -1;
+ }
+ }
+
+ /* data length */
+ dcon = data->blocksize * data->blocks;
+ writel(dcon, &host->reg->dlr);
+
+ /* write data control */
+ dcon = cal_blksz(data->blocksize);
+
+ /* add to IMASK register */
+ newmask = (FTSDC010_STATUS_RSP_CRC_FAIL | FTSDC010_STATUS_DATA_TIMEOUT);
+
+ /*
+ * enable UNDERRUN will trigger interrupt immediatedly
+ * So setup it when rsp is received successfully
+ */
+ if (data->flags & MMC_DATA_WRITE) {
+ dcon |= FTSDC010_DCR_DATA_WRITE;
+ } else {
+ dcon &= ~FTSDC010_DCR_DATA_WRITE;
+ newmask |= FTSDC010_STATUS_FIFO_ORUN;
+ }
+ enable_imask(host->reg, newmask);
+
+#ifdef CONFIG_FTSDC010_SDIO
+ /* always reset fifo since last transfer may fail */
+ dcon |= FTSDC010_DCR_FIFO_RST;
+
+ /* handle sdio */
+ dcon = data->blocksize | data->blocks << 15;
+ if (data->blocks > 1)
+ dcon |= FTSDC010_SDIO_CTRL1_SDIO_BLK_MODE;
+#endif
+
+ /* enable data transfer which will be pended until cmd is send */
+ dcon |= FTSDC010_DCR_DATA_EN;
+ writel(dcon, &host->reg->dcr);
+
+ return 0;
+}
+
+static int ftsdc010_send_request(struct mmc *mmc, struct mmc_cmd *cmd,
+ struct mmc_data *data)
+{
+ int ret;
+
+ if (data) {
+ ret = ftsdc010_setup_data(mmc, data);
+
+ if (ret) {
+ printf("%s: setup data error\n", __func__);
+ return -1;
+ }
+
+ if ((data->flags & MMC_DATA_BOTH_DIR) == MMC_DATA_BOTH_DIR) {
+ printf("%s: data is both direction\n", __func__);
+ return -1;
+ }
+ }
+
+ /* Send command */
+ ret = mmc_send_cmd(mmc, cmd, data);
+ return ret;
+}
+
+static int ftsdc010_card_detect(struct mmc *mmc)
+{
+ struct mmc_host *host = (struct mmc_host *)mmc->priv;
+ unsigned int sta;
+
+ sta = readl(&host->reg->status);
+ debug("%s: card status: %08x\n", __func__, sta);
+
+ return (sta & FTSDC010_STATUS_CARD_DETECT) ? 0 : 1;
+}
+
+static int ftsdc010_request(struct mmc *mmc, struct mmc_cmd *cmd,
+ struct mmc_data *data)
+{
+ int ret;
+
+ if (ftsdc010_card_detect(mmc) == 0) {
+ printf("%s: no medium present\n", __func__);
+ return -1;
+ } else {
+ ret = ftsdc010_send_request(mmc, cmd, data);
+ return ret;
+ }
+}
+
+static void ftsdc010_set_clk(struct mmc *mmc)
+{
+ struct mmc_host *host = mmc->priv;
+ unsigned char clk_div;
+ unsigned char real_rate;
+ unsigned int clock;
+
+ debug("%s: mmc_set_clock: %x\n", __func__, mmc->clock);
+ clock = readl(&host->reg->ccr);
+
+ if (mmc->clock == 0) {
+ real_rate = 0;
+ clock |= FTSDC010_CCR_CLK_DIS;
+ } else {
+ debug("%s, mmc->clock: %08x, origin clock: %08x\n",
+ __func__, mmc->clock, clock);
+
+ for (clk_div = 0; clk_div <= 127; clk_div++) {
+ real_rate = (CONFIG_SYS_CLK_FREQ / 2) /
+ (2 * (clk_div + 1));
+
+ if (real_rate <= mmc->clock)
+ break;
+ }
+
+ debug("%s: computed real_rete: %x, clk_div: %x\n",
+ __func__, real_rate, clk_div);
+
+ if (clk_div > 127)
+ debug("%s: no match clock rate, %x\n",
+ __func__, mmc->clock);
+
+ clock = (clock & ~FTSDC010_CCR_CLK_DIV(0x7f)) |
+ FTSDC010_CCR_CLK_DIV(clk_div);
+
+ clock &= ~FTSDC010_CCR_CLK_DIS;
+ }
+
+ debug("%s, set clock: %08x\n", __func__, clock);
+ writel(clock, &host->reg->ccr);
+}
+
+static void mmc_set_ios(struct mmc *mmc)
+{
+ struct mmc_host *host = mmc->priv;
+ unsigned int power;
+ unsigned long val;
+ unsigned int bus_width;
+
+ debug("%s: bus_width: %x, clock: %d\n",
+ __func__, mmc->bus_width, mmc->clock);
+
+ /* set pcr: power on */
+ power = readl(&host->reg->pcr);
+ power |= FTSDC010_PCR_POWER_ON;
+ writel(power, &host->reg->pcr);
+
+ if (mmc->clock)
+ ftsdc010_set_clk(mmc);
+
+ /* set bwr: bus width reg */
+ bus_width = readl(&host->reg->bwr);
+ bus_width &= ~(FTSDC010_BWR_WIDE_8_BUS | FTSDC010_BWR_WIDE_4_BUS |
+ FTSDC010_BWR_SINGLE_BUS);
+
+ if (mmc->bus_width == 8)
+ bus_width |= FTSDC010_BWR_WIDE_8_BUS;
+ else if (mmc->bus_width == 4)
+ bus_width |= FTSDC010_BWR_WIDE_4_BUS;
+ else
+ bus_width |= FTSDC010_BWR_SINGLE_BUS;
+
+ writel(bus_width, &host->reg->bwr);
+
+ /* set fifo depth */
+ val = readl(&host->reg->feature);
+ host->fifo_len = FTSDC010_FEATURE_FIFO_DEPTH(val) * 4; /* 4 bytes */
+
+ /* set data timeout register */
+ val = -1;
+ writel(val, &host->reg->dtr);
+}
+
+static void mmc_reset(struct mmc_host *host)
+{
+ unsigned int timeout;
+
+ /* Do SDC_RST: Software reset for all register */
+ writel(FTSDC010_CMD_SDC_RST, &host->reg->cmd);
+
+ host->clock = 0;
+
+ /* this hardware has no reset finish flag to read */
+ /* wait 100ms maximum */
+ timeout = 100;
+
+ /* hw clears the bit when it's done */
+ while (readl(&host->reg->dtr) != 0) {
+ if (timeout == 0) {
+ printf("%s: reset timeout error\n", __func__);
+ return;
+ }
+ timeout--;
+ udelay(10*FTSDC010_DELAY_UNIT);
+ }
+}
+
+static int mmc_core_init(struct mmc *mmc)
+{
+ struct mmc_host *host = (struct mmc_host *)mmc->priv;
+ unsigned int mask;
+ unsigned int major, minor, revision;
+
+ /* get hardware version */
+ host->version = readl(&host->reg->rev);
+
+ major = FTSDC010_REV_MAJOR(host->version);
+ minor = FTSDC010_REV_MINOR(host->version);
+ revision = FTSDC010_REV_REVISION(host->version);
+
+ printf("ftsdc010 hardware ver: %d_%d_r%d\n", major, minor, revision);
+
+ /* Interrupt MASK register init - mask all */
+ writel(0x0, &host->reg->int_mask);
+
+ mask = FTSDC010_INT_MASK_CMD_SEND |
+ FTSDC010_INT_MASK_DATA_END |
+ FTSDC010_INT_MASK_CARD_CHANGE;
+#ifdef CONFIG_FTSDC010_SDIO
+ mask |= FTSDC010_INT_MASK_CP_READY |
+ FTSDC010_INT_MASK_CP_BUF_READY |
+ FTSDC010_INT_MASK_PLAIN_TEXT_READY |
+ FTSDC010_INT_MASK_SDIO_IRPT;
+#endif
+
+ writel(mask, &host->reg->int_mask);
+
+ return 0;
+}
+
+int ftsdc010_mmc_init(int dev_index)
+{
+ struct mmc *mmc;
+ struct mmc_host *host;
+
+ mmc = &mmc_dev[dev_index];
+
+ sprintf(mmc->name, "FTSDC010 SD/MMC");
+ mmc->priv = &mmc_host[dev_index];
+ mmc->send_cmd = ftsdc010_request;
+ mmc->set_ios = mmc_set_ios;
+ mmc->init = mmc_core_init;
+
+ mmc->voltages = MMC_VDD_32_33 | MMC_VDD_33_34;
+
+ mmc->host_caps = MMC_MODE_4BIT | MMC_MODE_8BIT;
+
+ mmc->host_caps |= MMC_MODE_HS_52MHz | MMC_MODE_HS;
+
+ mmc->f_min = CONFIG_SYS_CLK_FREQ / 2 / (2*128);
+ mmc->f_max = CONFIG_SYS_CLK_FREQ / 2 / 2;
+
+ mmc_host[dev_index].clock = 0;
+ mmc_host[dev_index].reg = ftsdc010_get_base_mmc(dev_index);
+ mmc_register(mmc);
+
+ /* reset mmc */
+ host = (struct mmc_host *)mmc->priv;
+ mmc_reset(host);
+
+ return 0;
+}
new file mode 100644
@@ -0,0 +1,245 @@
+/*
+ * Faraday FTSDC010 Secure Digital Memory Card Host Controller
+ *
+ * Copyright (C) 2011 Andes Technology Corporation
+ * Macpaul Lin, Andes Technology Corporation <macpaul@andestech.com>
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef __FTSDC010_H
+#define __FTSDC010_H
+
+#ifndef __ASSEMBLY__
+/* sd controller register */
+struct ftsdc010_mmc {
+ unsigned int cmd; /* 0x00 - command reg */
+ unsigned int argu; /* 0x04 - argument reg */
+ unsigned int rsp0; /* 0x08 - response reg0 */
+ unsigned int rsp1; /* 0x0c - response reg1 */
+ unsigned int rsp2; /* 0x10 - response reg2 */
+ unsigned int rsp3; /* 0x14 - response reg3 */
+ unsigned int rsp_cmd; /* 0x18 - responded cmd reg */
+ unsigned int dcr; /* 0x1c - data control reg */
+ unsigned int dtr; /* 0x20 - data timer reg */
+ unsigned int dlr; /* 0x24 - data length reg */
+ unsigned int status; /* 0x28 - status reg */
+ unsigned int clr; /* 0x2c - clear reg */
+ unsigned int int_mask; /* 0x30 - intrrupt mask reg */
+ unsigned int pcr; /* 0x34 - power control reg */
+ unsigned int ccr; /* 0x38 - clock contorl reg */
+ unsigned int bwr; /* 0x3c - bus width reg */
+ unsigned int dwr; /* 0x40 - data window reg */
+#ifndef CONFIG_FTSDC010_SDIO
+ unsigned int feature; /* 0x44 - feature reg */
+ unsigned int rev; /* 0x48 - revision reg */
+#else
+ unsigned int mmc_intr_time; /* 0x44 - MMC int resp time reg */
+ unsigned int gpo; /* 0x48 - gerenal purpose output */
+ unsigned int reserved[8]; /* 0x50 - 0x68 reserved */
+ unsigned int sdio_ctrl1; /* 0x6c - SDIO control reg 1 */
+ unsigned int sdio_ctrl2; /* 0x70 - SDIO control reg 2 */
+ unsigned int sdio_status; /* 0x74 - SDIO status regi */
+ unsigned int reserved1[9]; /* 0x78 - 0x98 reserved */
+ unsigned int feature; /* 0x9c - feature reg */
+ unsigned int rev; /* 0xa0 - revision reg */
+#endif /* CONFIG_FTSDC010_SDIO */
+};
+
+struct mmc_host {
+ struct ftsdc010_mmc *reg;
+ unsigned int version; /* SDHCI spec. version */
+ unsigned int clock; /* Current clock (MHz) */
+ unsigned int fifo_len; /* bytes */
+ unsigned int last_opcode; /* Last OP Code */
+};
+
+/* functions */
+int ftsdc010_mmc_init(int dev_index);
+
+#endif /* __ASSEMBLY__ */
+
+/* global defines */
+#define FTSDC010_CMD_RETRY 0x100000
+#define FTSDC010_PIO_RETRY 100 /* pio retry times */
+#define FTSDC010_DELAY_UNIT 100 /* 100 us */
+
+/* define from Linux kernel - include/linux/mmc/card.h */
+#define MMC_TYPE_SDIO 2 /* SDIO card */
+#define mmc_card_sdio(c) ((c)->type == MMC_TYPE_SDIO)
+
+/* define for mmc layer */
+#define MMC_DATA_BOTH_DIR (MMC_DATA_WRITE | MMC_DATA_READ)
+
+/* this part is strange */
+#define FTSDC010_SDIO_CTRL1_REG 0x0000006C
+#define FTSDC010_SDIO_CTRL2_REG 0x0000006C
+#define FTSDC010_SDIO_STATUS_REG 0x00000070
+
+/* 0x00 - command register */
+#define FTSDC010_CMD_IDX(x) (((x) & 0x3f) << 0)
+#define FTSDC010_CMD_NEED_RSP (1 << 6)
+#define FTSDC010_CMD_LONG_RSP (1 << 7)
+#define FTSDC010_CMD_APP_CMD (1 << 8)
+#define FTSDC010_CMD_CMD_EN (1 << 9)
+#define FTSDC010_CMD_SDC_RST (1 << 10)
+#define FTSDC010_CMD_MMC_INT_STOP (1 << 11)
+
+/* 0x18 - responded command register */
+#define FTSDC010_RSP_CMD_IDX(x) (((x) >> 0) & 0x3f)
+#define FTSDC010_RSP_CMD_APP (1 << 6)
+
+/* 0x1c - data control register */
+#define FTSDC010_DCR_BLK_SIZE(x) (((x) & 0xf) << 0)
+#define FTSDC010_DCR_DATA_WRITE (1 << 4)
+#define FTSDC010_DCR_DMA_EN (1 << 5)
+#define FTSDC010_DCR_DATA_EN (1 << 6)
+#ifdef CONFIG_FTSDC010_SDIO
+#define FTSDC010_DCR_FIFOTH (1 << 7)
+#define FTSDC010_DCR_DMA_TYPE(x) (((x) & 0x3) << 8)
+#define FTSDC010_DCR_FIFO_RST (1 << 10)
+#endif /* CONFIG_FTSDC010_SDIO */
+
+#define FTSDC010_DCR_DMA_TYPE_1 0x0 /* Single r/w */
+#define FTSDC010_DCR_DMA_TYPE_4 0x1 /* Burst 4 r/w */
+#define FTSDC010_DCR_DMA_TYPE_8 0x2 /* Burst 8 r/w */
+
+#define FTSDC010_DCR_BLK_SIZE(x) (ffs(x) - 1) /* 1B - 2048B */
+
+/* CPRM related define */
+#define FTSDC010_CPRM_DATA_CHANGE_ENDIAN_EN 0x000008
+#define FTSDC010_CPRM_DATA_SWAP_HL_EN 0x000010
+
+/* 0x28 - status register */
+#define FTSDC010_STATUS_RSP_CRC_FAIL (1 << 0)
+#define FTSDC010_STATUS_DATA_CRC_FAIL (1 << 1)
+#define FTSDC010_STATUS_RSP_TIMEOUT (1 << 2)
+#define FTSDC010_STATUS_DATA_TIMEOUT (1 << 3)
+#define FTSDC010_STATUS_RSP_CRC_OK (1 << 4)
+#define FTSDC010_STATUS_DATA_CRC_OK (1 << 5)
+#define FTSDC010_STATUS_CMD_SEND (1 << 6)
+#define FTSDC010_STATUS_DATA_END (1 << 7)
+#define FTSDC010_STATUS_FIFO_URUN (1 << 8)
+#define FTSDC010_STATUS_FIFO_ORUN (1 << 9)
+#define FTSDC010_STATUS_CARD_CHANGE (1 << 10)
+#define FTSDC010_STATUS_CARD_DETECT (1 << 11)
+#define FTSDC010_STATUS_WRITE_PROT (1 << 12)
+#ifdef CONFIG_FTSDC010_SDIO
+#define FTSDC010_STATUS_CP_READY (1 << 13) /* reserved ? */
+#define FTSDC010_STATUS_CP_BUF_READY (1 << 14) /* reserved ? */
+#define FTSDC010_STATUS_PLAIN_TEXT_READY (1 << 15) /* reserved ? */
+#define FTSDC010_STATUS_SDIO_IRPT (1 << 16) /* SDIO card intr */
+#define FTSDC010_STATUS_DATA0_STATUS (1 << 17)
+#endif /* CONFIG_FTSDC010_SDIO */
+
+/* 0x2c - clear register */
+#define FTSDC010_CLR_RSP_CRC_FAIL (1 << 0)
+#define FTSDC010_CLR_DATA_CRC_FAIL (1 << 1)
+#define FTSDC010_CLR_RSP_TIMEOUT (1 << 2)
+#define FTSDC010_CLR_DATA_TIMEOUT (1 << 3)
+#define FTSDC010_CLR_RSP_CRC_OK (1 << 4)
+#define FTSDC010_CLR_DATA_CRC_OK (1 << 5)
+#define FTSDC010_CLR_CMD_SEND (1 << 6)
+#define FTSDC010_CLR_DATA_END (1 << 7)
+#define FTSDC010_STATUS_FIFO_URUN (1 << 8) /* reserved ? */
+#define FTSDC010_STATUS_FIFO_ORUN (1 << 9) /* reserved ? */
+#define FTSDC010_CLR_CARD_CHANGE (1 << 10)
+#ifdef CONFIG_FTSDC010_SDIO
+#define FTSDC010_CLR_SDIO_IRPT (1 << 16)
+#endif /* CONFIG_FTSDC010_SDIO */
+
+/* 0x30 - interrupt mask register */
+#define FTSDC010_INT_MASK_RSP_CRC_FAIL (1 << 0)
+#define FTSDC010_INT_MASK_DATA_CRC_FAIL (1 << 1)
+#define FTSDC010_INT_MASK_RSP_TIMEOUT (1 << 2)
+#define FTSDC010_INT_MASK_DATA_TIMEOUT (1 << 3)
+#define FTSDC010_INT_MASK_RSP_CRC_OK (1 << 4)
+#define FTSDC010_INT_MASK_DATA_CRC_OK (1 << 5)
+#define FTSDC010_INT_MASK_CMD_SEND (1 << 6)
+#define FTSDC010_INT_MASK_DATA_END (1 << 7)
+#define FTSDC010_INT_MASK_FIFO_URUN (1 << 8)
+#define FTSDC010_INT_MASK_FIFO_ORUN (1 << 9)
+#define FTSDC010_INT_MASK_CARD_CHANGE (1 << 10)
+#ifdef CONFIG_FTSDC010_SDIO
+#define FTSDC010_INT_MASK_CP_READY (1 << 13)
+#define FTSDC010_INT_MASK_CP_BUF_READY (1 << 14)
+#define FTSDC010_INT_MASK_PLAIN_TEXT_READY (1 << 15)
+#define FTSDC010_INT_MASK_SDIO_IRPT (1 << 16)
+#define FTSDC010_STATUS_DATA0_STATUS (1 << 17)
+#endif /* CONFIG_FTSDC010_SDIO */
+
+/* ? */
+#define FTSDC010_CARD_INSERT 0x0
+#define FTSDC010_CARD_REMOVE FTSDC010_STATUS_REG_CARD_DETECT
+
+/* 0x34 - power control register */
+#define FTSDC010_PCR_POWER(x) (((x) & 0xf) << 0)
+#define FTSDC010_PCR_POWER_ON (1 << 4)
+
+/* 0x38 - clock control register */
+#define FTSDC010_CCR_CLK_DIV(x) (((x) & 0x7f) << 0)
+#define FTSDC010_CCR_CLK_SD (1 << 7) /* 0: MMC, 1: SD */
+#define FTSDC010_CCR_CLK_DIS (1 << 8)
+
+/* card type */
+#define FTSDC010_CARD_TYPE_SD FTSDC010_CLOCK_REG_CARD_TYPE
+#define FTSDC010_CARD_TYPE_MMC 0x0
+
+/* 0x3c - bus width register */
+#define FTSDC010_BWR_SINGLE_BUS (1 << 0)
+#define FTSDC010_BWR_WIDE_8_BUS (1 << 1)
+#define FTSDC010_BWR_WIDE_4_BUS (1 << 2)
+#define FTSDC010_BWR_WIDE_BUS_SUPPORT(x) (((x) >> 3) & 0x3)
+#define FTSDC010_BWR_CARD_DETECT (1 << 5)
+
+#define FTSDC010_BWR_1_BUS_SUPPORT 0x0
+#define FTSDC010_BWR_4_BUS_SUPPORT 0x1
+#define FTSDC010_BWR_8_BUS_SUPPORT 0x2
+
+/* 0x44 or 0x9c - feature register */
+#define FTSDC010_FEATURE_FIFO_DEPTH(x) (((x) >> 0) & 0xff)
+#define FTSDC010_FEATURE_CPRM_FUNCTION (1 << 8)
+
+#define FTSDC010_FIFO_DEPTH_4 0x04
+#define FTSDC010_FIFO_DEPTH_8 0x08
+#define FTSDC010_FIFO_DEPTH_16 0x10
+
+/* 0x48 or 0xa0 - revision register */
+#define FTSDC010_REV_REVISION(x) (((x) & 0xff) >> 0)
+#define FTSDC010_REV_MINOR(x) (((x) & 0xff00) >> 8)
+#define FTSDC010_REV_MAJOR(x) (((x) & 0xffff0000) >> 16)
+
+#ifdef CONFIG_FTSDC010_SDIO
+/* 0x44 - general purpose output */
+#define FTSDC010_GPO_PORT(x) (((x) & 0xf) << 0)
+
+/* 0x6c - sdio control register 1 */
+#define FTSDC010_SDIO_CTRL1_SDIO_BLK_SIZE(x) (((x) & 0xfff) << 0)
+#define FTSDC010_SDIO_CTRL1_SDIO_BLK_MODE (1 << 12)
+#define FTSDC010_SDIO_CTRL1_READ_WAIT_EN (1 << 13)
+#define FTSDC010_SDIO_CTRL1_SDIO_ENABLE (1 << 14)
+#define FTSDC010_SDIO_CTRL1_SDIO_BLK_NO(x) (((x) & 0x1ff) << 15)
+
+/* 0x70 - sdio control register 2 */
+#define FTSDC010_SDIO_CTRL2_SUSP_READ_WAIT (1 << 0)
+#define FTSDC010_SDIO_CTRL2_SUSP_CMD_ABORT (1 << 1)
+
+/* 0x74 - sdio status register */
+#define FTSDC010_SDIO_STATUS_SDIO_BLK_CNT(x) (((x) >> 0) & 0x1ffff)
+#define FTSDC010_SDIO_STATUS_FIFO_REMAIN_NO(x) (((x) >> 17) & 0xef)
+
+#endif /* CONFIG_FTSDC010_SDIO */
+
+#endif /* __FTSDC010_H */
Faraday FTSDC010 controller is a SD/MMC controller for SoC chip. Signed-off-by: Macpaul Lin <macpaul@andestech.com> --- drivers/mmc/Makefile | 1 + drivers/mmc/ftsdc010_esdhc.c | 666 ++++++++++++++++++++++++++++++++++++++++++ include/faraday/ftsdc010.h | 245 ++++++++++++++++ 3 files changed, 912 insertions(+), 0 deletions(-) create mode 100644 drivers/mmc/ftsdc010_esdhc.c create mode 100644 include/faraday/ftsdc010.h