#include <part.h>
#include <malloc.h>
#include <mmc.h>
-#include <asm/errno.h>
+#include <linux/errno.h>
#include <asm/io.h>
-#ifdef CONFIG_MX27
#include <asm/arch/clock.h>
-#endif
#define DRIVER_NAME "mxc-mmc"
};
static struct mxcmci_host mxcmci_host;
+
+/* maintainer note: do we really want to have a global host pointer? */
static struct mxcmci_host *host = &mxcmci_host;
static inline int mxcmci_use_dma(struct mxcmci_host *host)
int i;
/* reset sequence */
- writew(STR_STP_CLK_RESET, &host->base->str_stp_clk);
- writew(STR_STP_CLK_RESET | STR_STP_CLK_START_CLK,
+ writel(STR_STP_CLK_RESET, &host->base->str_stp_clk);
+ writel(STR_STP_CLK_RESET | STR_STP_CLK_START_CLK,
&host->base->str_stp_clk);
for (i = 0; i < 8; i++)
- writew(STR_STP_CLK_START_CLK, &host->base->str_stp_clk);
+ writel(STR_STP_CLK_START_CLK, &host->base->str_stp_clk);
- writew(0xff, &host->base->res_to);
+ writel(0xff, &host->base->res_to);
}
static void mxcmci_setup_data(struct mxcmci_host *host, struct mmc_data *data)
host->data = data;
- writew(nob, &host->base->nob);
- writew(blksz, &host->base->blk_len);
+ writel(nob, &host->base->nob);
+ writel(blksz, &host->base->blk_len);
host->datasize = datasize;
}
return -EINVAL;
}
- writew(cmd->cmdidx, &host->base->cmd);
+ writel(cmd->cmdidx, &host->base->cmd);
writel(cmd->cmdarg, &host->base->arg);
- writew(cmdat, &host->base->cmd_dat_cont);
+ writel(cmdat, &host->base->cmd_dat_cont);
return 0;
}
} else if (stat & STATUS_CRC_WRITE_ERR) {
u32 err_code = (stat >> 9) & 0x3;
if (err_code == 2) /* No CRC response */
- data_error = TIMEOUT;
+ data_error = -ETIMEDOUT;
else
data_error = -EILSEQ;
} else if (stat & STATUS_TIME_OUT_READ) {
- data_error = TIMEOUT;
+ data_error = -ETIMEDOUT;
} else {
data_error = -EIO;
}
if (stat & STATUS_TIME_OUT_RESP) {
printf("CMD TIMEOUT\n");
- return TIMEOUT;
+ return -ETIMEDOUT;
} else if (stat & STATUS_RESP_CRC_ERR && cmd->resp_type & MMC_RSP_CRC) {
printf("cmd crc error\n");
return -EILSEQ;
if (cmd->resp_type & MMC_RSP_PRESENT) {
if (cmd->resp_type & MMC_RSP_136) {
for (i = 0; i < 4; i++) {
- a = readw(&host->base->res_fifo);
- b = readw(&host->base->res_fifo);
+ a = readl(&host->base->res_fifo) & 0xFFFF;
+ b = readl(&host->base->res_fifo) & 0xFFFF;
resp[i] = a << 16 | b;
}
} else {
- a = readw(&host->base->res_fifo);
- b = readw(&host->base->res_fifo);
- c = readw(&host->base->res_fifo);
+ a = readl(&host->base->res_fifo) & 0xFFFF;
+ b = readl(&host->base->res_fifo) & 0xFFFF;
+ c = readl(&host->base->res_fifo) & 0xFFFF;
resp[0] = a << 24 | b << 8 | c >> 8;
}
}
{
unsigned int divider;
int prescaler = 0;
- unsigned long clk_in = imx_get_perclk2();
+ unsigned long clk_in = mxc_get_clock(MXC_ESDHC_CLK);
while (prescaler <= 0x800) {
for (divider = 1; divider <= 0xF; divider++) {
prescaler <<= 1;
}
- writew((prescaler << 4) | divider, &host->base->clk_rate);
+ writel((prescaler << 4) | divider, &host->base->clk_rate);
}
-static void mxcmci_set_ios(struct mmc *mmc)
+static int mxcmci_set_ios(struct mmc *mmc)
{
struct mxcmci_host *host = mmc->priv;
if (mmc->bus_width == 4)
if (mmc->clock) {
mxcmci_set_clk_rate(host, mmc->clock);
- writew(STR_STP_CLK_START_CLK, &host->base->str_stp_clk);
+ writel(STR_STP_CLK_START_CLK, &host->base->str_stp_clk);
} else {
- writew(STR_STP_CLK_STOP_CLK, &host->base->str_stp_clk);
+ writel(STR_STP_CLK_STOP_CLK, &host->base->str_stp_clk);
}
host->clock = mmc->clock;
+
+ return 0;
}
static int mxcmci_init(struct mmc *mmc)
mxcmci_softreset(host);
- host->rev_no = readw(&host->base->rev_no);
+ host->rev_no = readl(&host->base->rev_no);
if (host->rev_no != 0x400) {
printf("wrong rev.no. 0x%08x. aborting.\n",
host->rev_no);
}
/* recommended in data sheet */
- writew(0x2db4, &host->base->read_to);
+ writel(0x2db4, &host->base->read_to);
writel(0, &host->base->int_cntr);
return 0;
}
-static int mxcmci_initialize(bd_t *bis)
-{
- struct mmc *mmc = NULL;
-
- mmc = malloc(sizeof(struct mmc));
-
- if (!mmc)
- return -ENOMEM;
+static const struct mmc_ops mxcmci_ops = {
+ .send_cmd = mxcmci_request,
+ .set_ios = mxcmci_set_ios,
+ .init = mxcmci_init,
+};
- sprintf(mmc->name, "MXC MCI");
- mmc->send_cmd = mxcmci_request;
- mmc->set_ios = mxcmci_set_ios;
- mmc->init = mxcmci_init;
- mmc->host_caps = MMC_MODE_4BIT;
+static struct mmc_config mxcmci_cfg = {
+ .name = "MXC MCI",
+ .ops = &mxcmci_ops,
+ .host_caps = MMC_MODE_4BIT,
+ .voltages = MMC_VDD_32_33 | MMC_VDD_33_34,
+ .b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT,
+};
+static int mxcmci_initialize(bd_t *bis)
+{
host->base = (struct mxcmci_regs *)CONFIG_MXC_MCI_REGS_BASE;
- mmc->priv = host;
- host->mmc = mmc;
-
- mmc->voltages = MMC_VDD_32_33 | MMC_VDD_33_34;
- mmc->f_min = imx_get_perclk2() >> 7;
- mmc->f_max = imx_get_perclk2() >> 1;
+ mxcmci_cfg.f_min = mxc_get_clock(MXC_ESDHC_CLK) >> 7;
+ mxcmci_cfg.f_max = mxc_get_clock(MXC_ESDHC_CLK) >> 1;
- mmc_register(mmc);
+ host->mmc = mmc_create(&mxcmci_cfg, host);
+ if (host->mmc == NULL)
+ return -1;
return 0;
}
{
return mxcmci_initialize(bis);
}
-