* (C) Copyright 2003
* Kyle Harris, Nexus Technologies, Inc. kharris@nexus-tech.net
*
- * 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
+ * SPDX-License-Identifier: GPL-2.0+
*/
#include <config.h>
};
/* Return the XFERTYP flags for a given command and data packet */
-uint esdhc_xfertyp(struct mmc_cmd *cmd, struct mmc_data *data)
+static uint esdhc_xfertyp(struct mmc_cmd *cmd, struct mmc_data *data)
{
uint xfertyp = 0;
else if (cmd->resp_type & MMC_RSP_PRESENT)
xfertyp |= XFERTYP_RSPTYP_48;
-#ifdef CONFIG_MX53
+#if defined(CONFIG_MX53) || defined(CONFIG_T4240QDS)
if (cmd->cmdidx == MMC_CMD_STOP_TRANSMISSION)
xfertyp |= XFERTYP_CMDTYP_ABORT;
#endif
esdhc_clrsetbits32(®s->wml, WML_RD_WML_MASK, wml_value);
esdhc_write32(®s->dsaddr, (u32)data->dest);
} else {
+ flush_dcache_range((ulong)data->src,
+ (ulong)data->src+data->blocks
+ *data->blocksize);
+
if (wml_value > WML_WR_WML_MAX)
wml_value = WML_WR_WML_MAX_VAL;
if ((esdhc_read32(®s->prsstat) & PRSSTAT_WPSPL) == 0) {
return 0;
}
-
+static void check_and_invalidate_dcache_range
+ (struct mmc_cmd *cmd,
+ struct mmc_data *data) {
+ unsigned start = (unsigned)data->dest ;
+ unsigned size = roundup(ARCH_DMA_MINALIGN,
+ data->blocks*data->blocksize);
+ unsigned end = start+size ;
+ invalidate_dcache_range(start, end);
+}
/*
* Sends a command out on the bus. Takes the mmc pointer,
* a command pointer, and an optional data pointer.
/* Figure out the transfer arguments */
xfertyp = esdhc_xfertyp(cmd, data);
+ /* Mask all irqs */
+ esdhc_write32(®s->irqsigen, 0);
+
/* Send the command */
esdhc_write32(®s->cmdarg, cmd->cmdarg);
#if defined(CONFIG_FSL_USDHC)
esdhc_write32(®s->xfertyp, xfertyp);
#endif
- /* Mask all irqs */
- esdhc_write32(®s->irqsigen, 0);
-
/* Wait for the command to complete */
while (!(esdhc_read32(®s->irqstat) & (IRQSTAT_CC | IRQSTAT_CTOE)))
;
irqstat = esdhc_read32(®s->irqstat);
- esdhc_write32(®s->irqstat, irqstat);
/* Reset CMD and DATA portions on error */
if (irqstat & (CMD_ERR | IRQSTAT_CTOE)) {
if (irqstat & DATA_ERR)
return COMM_ERR;
- } while (!(irqstat & IRQSTAT_TC) &&
- (esdhc_read32(®s->prsstat) & PRSSTAT_DLA));
+ } while ((irqstat & DATA_COMPLETE) != DATA_COMPLETE);
#endif
+ if (data->flags & MMC_DATA_READ)
+ check_and_invalidate_dcache_range(cmd, data);
}
esdhc_write32(®s->irqstat, -1);
return 0;
}
-void set_sysctl(struct mmc *mmc, uint clock)
+static void set_sysctl(struct mmc *mmc, uint clock)
{
- int sdhc_clk = gd->sdhc_clk;
int div, pre_div;
struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
volatile struct fsl_esdhc *regs = (struct fsl_esdhc *)cfg->esdhc_base;
+ int sdhc_clk = cfg->sdhc_clk;
uint clk;
if (clock < mmc->f_min)
int timeout = 1000;
/* Reset the entire host controller */
- esdhc_write32(®s->sysctl, SYSCTL_RSTA);
+ esdhc_setbits32(®s->sysctl, SYSCTL_RSTA);
/* Wait until the controller is available */
while ((esdhc_read32(®s->sysctl) & SYSCTL_RSTA) && --timeout)
udelay(1000);
+#ifndef ARCH_MXC
/* Enable cache snooping */
- if (cfg && !cfg->no_snoop)
- esdhc_write32(®s->scr, 0x00000040);
+ esdhc_write32(®s->scr, 0x00000040);
+#endif
- esdhc_write32(®s->sysctl, SYSCTL_HCKEN | SYSCTL_IPGEN);
+ esdhc_setbits32(®s->sysctl, SYSCTL_HCKEN | SYSCTL_IPGEN);
/* Set the initial clock speed */
mmc_set_clock(mmc, 400000);
unsigned long timeout = 100; /* wait max 100 ms */
/* reset the controller */
- esdhc_write32(®s->sysctl, SYSCTL_RSTA);
+ esdhc_setbits32(®s->sysctl, SYSCTL_RSTA);
/* hardware clears the bit when it is done */
while ((esdhc_read32(®s->sysctl) & SYSCTL_RSTA) && --timeout)
/* First reset the eSDHC controller */
esdhc_reset(regs);
+ esdhc_setbits32(®s->sysctl, SYSCTL_PEREN | SYSCTL_HCKEN
+ | SYSCTL_IPGEN | SYSCTL_CKEN);
+
mmc->priv = cfg;
mmc->send_cmd = esdhc_send_cmd;
mmc->set_ios = esdhc_set_ios;
mmc->init = esdhc_init;
mmc->getcd = esdhc_getcd;
+ mmc->getwp = NULL;
voltage_caps = 0;
caps = regs->hostcapblt;
return -1;
}
- mmc->host_caps = MMC_MODE_4BIT | MMC_MODE_8BIT;
+ mmc->host_caps = MMC_MODE_4BIT | MMC_MODE_8BIT | MMC_MODE_HC;
+
+ if (cfg->max_bus_width > 0) {
+ if (cfg->max_bus_width < 8)
+ mmc->host_caps &= ~MMC_MODE_8BIT;
+ if (cfg->max_bus_width < 4)
+ mmc->host_caps &= ~MMC_MODE_4BIT;
+ }
if (caps & ESDHC_HOSTCAPBLT_HSS)
mmc->host_caps |= MMC_MODE_HS_52MHz | MMC_MODE_HS;
mmc->f_min = 400000;
- mmc->f_max = MIN(gd->sdhc_clk, 52000000);
+ mmc->f_max = MIN(gd->arch.sdhc_clk, 52000000);
mmc->b_max = 0;
mmc_register(mmc);
{
struct fsl_esdhc_cfg *cfg;
- cfg = malloc(sizeof(struct fsl_esdhc_cfg));
- memset(cfg, 0, sizeof(struct fsl_esdhc_cfg));
+ cfg = calloc(sizeof(struct fsl_esdhc_cfg), 1);
cfg->esdhc_base = CONFIG_SYS_FSL_ESDHC_ADDR;
+ cfg->sdhc_clk = gd->arch.sdhc_clk;
return fsl_esdhc_initialize(bis, cfg);
}
#endif
do_fixup_by_compat_u32(blob, compat, "clock-frequency",
- gd->sdhc_clk, 1);
+ gd->arch.sdhc_clk, 1);
do_fixup_by_compat(blob, compat, "status", "okay",
4 + 1, 1);