+// SPDX-License-Identifier: GPL-2.0+
/*
* Davinci MMC Controller Driver
*
* Copyright (C) 2010 Texas Instruments Incorporated
- *
- * 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.
*/
#include <config.h>
#include <common.h>
#include <command.h>
+#include <errno.h>
#include <mmc.h>
#include <part.h>
#include <malloc.h>
struct davinci_mmc_regs *regs = host->reg_base;
uint clkrt, sysclk2, act_clock;
- if (clock < mmc->f_min)
- clock = mmc->f_min;
- if (clock > mmc->f_max)
- clock = mmc->f_max;
+ if (clock < mmc->cfg->f_min)
+ clock = mmc->cfg->f_min;
+ if (clock > mmc->cfg->f_max)
+ clock = mmc->cfg->f_max;
set_val(®s->mmcclk, 0);
sysclk2 = host->input_clk;
static int
dmmc_wait_fifo_status(volatile struct davinci_mmc_regs *regs, uint status)
{
- uint mmcstatus1, wdog = WATCHDOG_COUNT;
- mmcstatus1 = get_val(®s->mmcst1);
+ uint wdog = WATCHDOG_COUNT;
+
while (--wdog && ((get_val(®s->mmcst1) & status) != status))
udelay(10);
udelay(100);
if (wdog == 0)
- return COMM_ERR;
+ return -ECOMM;
return 0;
}
/* Busy bit wait loop for MMCST1 */
static int dmmc_busy_wait(volatile struct davinci_mmc_regs *regs)
{
- uint mmcstatus1, wdog = WATCHDOG_COUNT;
+ uint wdog = WATCHDOG_COUNT;
- mmcstatus1 = get_val(®s->mmcst1);
while (--wdog && (get_val(®s->mmcst1) & MMCST1_BUSY))
udelay(10);
if (wdog == 0)
- return COMM_ERR;
+ return -ECOMM;
return 0;
}
return 0;
} else if (mmcstatus & st_error) {
if (mmcstatus & MMCST0_TOUTRS)
- return TIMEOUT;
+ return -ETIMEDOUT;
printf("[ ST0 ERROR %x]\n", mmcstatus);
/*
* Ignore CRC errors as some MMC cards fail to
*/
if (mmcstatus & MMCST0_CRCRS)
return 0;
- return COMM_ERR;
+ return -ECOMM;
}
udelay(10);
printf("Status %x Timeout ST0:%x ST1:%x\n", st_ready, mmcstatus,
get_val(®s->mmcst1));
- return COMM_ERR;
+ return -ECOMM;
}
/*
*/
if (bytes_left > fifo_bytes)
dmmc_wait_fifo_status(regs, 0x4a);
- else if (bytes_left == fifo_bytes)
+ else if (bytes_left == fifo_bytes) {
dmmc_wait_fifo_status(regs, 0x40);
+ if (cmd->cmdidx == MMC_CMD_SEND_EXT_CSD)
+ udelay(600);
+ }
for (i = 0; bytes_left && (i < fifo_words); i++) {
cmddata = get_val(®s->mmcdrr);
return 0;
}
-/* Set buswidth or clock as indicated by the GENERIC_MMC framework */
-static void dmmc_set_ios(struct mmc *mmc)
+/* Set buswidth or clock as indicated by the MMC framework */
+static int dmmc_set_ios(struct mmc *mmc)
{
struct davinci_mmc *host = mmc->priv;
struct davinci_mmc_regs *regs = host->reg_base;
/* Set clock speed */
if (mmc->clock)
dmmc_set_clock(mmc, mmc->clock);
+
+ return 0;
}
+static const struct mmc_ops dmmc_ops = {
+ .send_cmd = dmmc_send_cmd,
+ .set_ios = dmmc_set_ios,
+ .init = dmmc_init,
+};
+
/* Called from board_mmc_init during startup. Can be called multiple times
* depending on the number of slots available on board and controller
*/
int davinci_mmc_init(bd_t *bis, struct davinci_mmc *host)
{
- struct mmc *mmc;
+ host->cfg.name = "davinci";
+ host->cfg.ops = &dmmc_ops;
+ host->cfg.f_min = 200000;
+ host->cfg.f_max = 25000000;
+ host->cfg.voltages = host->voltages;
+ host->cfg.host_caps = host->host_caps;
- mmc = malloc(sizeof(struct mmc));
- memset(mmc, 0, sizeof(struct mmc));
+ host->cfg.b_max = DAVINCI_MAX_BLOCKS;
- sprintf(mmc->name, "davinci");
- mmc->priv = host;
- mmc->send_cmd = dmmc_send_cmd;
- mmc->set_ios = dmmc_set_ios;
- mmc->init = dmmc_init;
-
- mmc->f_min = 200000;
- mmc->f_max = 25000000;
- mmc->voltages = host->voltages;
- mmc->host_caps = host->host_caps;
-
-#ifdef CONFIG_MMC_MBLOCK
- mmc->b_max = DAVINCI_MAX_BLOCKS;
-#endif
- mmc_register(mmc);
+ mmc_create(&host->cfg, host);
return 0;
}
-