*
* Loosely based on the old code and Linux's PXA MMC driver
*
- * 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>
#include <common.h>
-#include <malloc.h>
-
-#include <mmc.h>
-#include <asm/errno.h>
#include <asm/arch/hardware.h>
#include <asm/arch/regs-mmc.h>
+#include <linux/errno.h>
#include <asm/io.h>
+#include <malloc.h>
+#include <mmc.h>
/* PXAMMC Generic default config for various CPUs */
#if defined(CONFIG_CPU_PXA25X)
/* Wait for bit to be set */
static int pxa_mmc_wait(struct mmc *mmc, uint32_t mask)
{
- struct pxa_mmc_priv *priv = (struct pxa_mmc_priv *)mmc->priv;
+ struct pxa_mmc_priv *priv = mmc->priv;
struct pxa_mmc_regs *regs = priv->regs;
unsigned int timeout = PXA_MMC_TIMEOUT;
static int pxa_mmc_stop_clock(struct mmc *mmc)
{
- struct pxa_mmc_priv *priv = (struct pxa_mmc_priv *)mmc->priv;
+ struct pxa_mmc_priv *priv = mmc->priv;
struct pxa_mmc_regs *regs = priv->regs;
unsigned int timeout = PXA_MMC_TIMEOUT;
static int pxa_mmc_start_cmd(struct mmc *mmc, struct mmc_cmd *cmd,
uint32_t cmdat)
{
- struct pxa_mmc_priv *priv = (struct pxa_mmc_priv *)mmc->priv;
+ struct pxa_mmc_priv *priv = mmc->priv;
struct pxa_mmc_regs *regs = priv->regs;
int ret;
static int pxa_mmc_cmd_done(struct mmc *mmc, struct mmc_cmd *cmd)
{
- struct pxa_mmc_priv *priv = (struct pxa_mmc_priv *)mmc->priv;
+ struct pxa_mmc_priv *priv = mmc->priv;
struct pxa_mmc_regs *regs = priv->regs;
uint32_t a, b, c;
int i;
static int pxa_mmc_do_read_xfer(struct mmc *mmc, struct mmc_data *data)
{
- struct pxa_mmc_priv *priv = (struct pxa_mmc_priv *)mmc->priv;
+ struct pxa_mmc_priv *priv = mmc->priv;
struct pxa_mmc_regs *regs = priv->regs;
uint32_t len;
uint32_t *buf = (uint32_t *)data->dest;
while (len) {
/* The controller has data ready */
if (readl(®s->i_reg) & MMC_I_REG_RXFIFO_RD_REQ) {
- size = min(len, PXAMMC_FIFO_SIZE);
+ size = min(len, (uint32_t)PXAMMC_FIFO_SIZE);
len -= size;
size /= 4;
static int pxa_mmc_do_write_xfer(struct mmc *mmc, struct mmc_data *data)
{
- struct pxa_mmc_priv *priv = (struct pxa_mmc_priv *)mmc->priv;
+ struct pxa_mmc_priv *priv = mmc->priv;
struct pxa_mmc_regs *regs = priv->regs;
uint32_t len;
uint32_t *buf = (uint32_t *)data->src;
while (len) {
/* The controller is ready to receive data */
if (readl(®s->i_reg) & MMC_I_REG_TXFIFO_WR_REQ) {
- size = min(len, PXAMMC_FIFO_SIZE);
+ size = min(len, (uint32_t)PXAMMC_FIFO_SIZE);
len -= size;
size /= 4;
while (size--)
writel(*buf++, ®s->txfifo);
- if (min(len, PXAMMC_FIFO_SIZE) < 32)
+ if (min(len, (uint32_t)PXAMMC_FIFO_SIZE) < 32)
writel(MMC_PRTBUF_BUF_PART_FULL, ®s->prtbuf);
}
static int pxa_mmc_request(struct mmc *mmc, struct mmc_cmd *cmd,
struct mmc_data *data)
{
- struct pxa_mmc_priv *priv = (struct pxa_mmc_priv *)mmc->priv;
+ struct pxa_mmc_priv *priv = mmc->priv;
struct pxa_mmc_regs *regs = priv->regs;
uint32_t cmdat = 0;
int ret;
return 0;
}
-static void pxa_mmc_set_ios(struct mmc *mmc)
+static int pxa_mmc_set_ios(struct mmc *mmc)
{
- struct pxa_mmc_priv *priv = (struct pxa_mmc_priv *)mmc->priv;
+ struct pxa_mmc_priv *priv = mmc->priv;
struct pxa_mmc_regs *regs = priv->regs;
uint32_t tmp;
uint32_t pxa_mmc_clock;
if (!mmc->clock) {
pxa_mmc_stop_clock(mmc);
- return;
+ return 0;
}
/* PXA3xx can do 26MHz with special settings. */
if (mmc->clock == 26000000) {
writel(0x7, ®s->clkrt);
- return;
+ return 0;
}
/* Set clock to the card the usual way. */
pxa_mmc_clock = 0;
- tmp = mmc->f_max / mmc->clock;
+ tmp = mmc->cfg->f_max / mmc->clock;
tmp += tmp % 2;
while (tmp > 1) {
}
writel(pxa_mmc_clock, ®s->clkrt);
+
+ return 0;
}
static int pxa_mmc_init(struct mmc *mmc)
{
- struct pxa_mmc_priv *priv = (struct pxa_mmc_priv *)mmc->priv;
+ struct pxa_mmc_priv *priv = mmc->priv;
struct pxa_mmc_regs *regs = priv->regs;
/* Make sure the clock are stopped */
return 0;
}
+static const struct mmc_ops pxa_mmc_ops = {
+ .send_cmd = pxa_mmc_request,
+ .set_ios = pxa_mmc_set_ios,
+ .init = pxa_mmc_init,
+};
+
+static struct mmc_config pxa_mmc_cfg = {
+ .name = "PXA MMC",
+ .ops = &pxa_mmc_ops,
+ .voltages = MMC_VDD_32_33 | MMC_VDD_33_34,
+ .f_max = PXAMMC_MAX_SPEED,
+ .f_min = PXAMMC_MIN_SPEED,
+ .host_caps = PXAMMC_HOST_CAPS,
+ .b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT,
+};
+
int pxa_mmc_register(int card_index)
{
struct mmc *mmc;
uint32_t reg;
int ret = -ENOMEM;
- mmc = malloc(sizeof(struct mmc));
- if (!mmc)
- goto err0;
-
priv = malloc(sizeof(struct pxa_mmc_priv));
if (!priv)
- goto err1;
+ goto err0;
+
+ memset(priv, 0, sizeof(*priv));
switch (card_index) {
case 0:
priv->regs = (struct pxa_mmc_regs *)MMC1_BASE;
break;
default:
+ ret = -EINVAL;
printf("PXA MMC: Invalid MMC controller ID (card_index = %d)\n",
card_index);
- goto err2;
+ goto err1;
}
- mmc->priv = priv;
-
- sprintf(mmc->name, "PXA MMC");
- mmc->send_cmd = pxa_mmc_request;
- mmc->set_ios = pxa_mmc_set_ios;
- mmc->init = pxa_mmc_init;
- mmc->getcd = NULL;
-
- mmc->voltages = MMC_VDD_32_33 | MMC_VDD_33_34;
- mmc->f_max = PXAMMC_MAX_SPEED;
- mmc->f_min = PXAMMC_MIN_SPEED;
- mmc->host_caps = PXAMMC_HOST_CAPS;
-
- mmc->b_max = 0;
-
#ifndef CONFIG_CPU_MONAHANS /* PXA2xx */
reg = readl(CKEN);
reg |= CKEN12_MMC;
writel(reg, CKENA);
#endif
- mmc_register(mmc);
+ mmc = mmc_create(&pxa_mmc_cfg, priv);
+ if (mmc == NULL)
+ goto err1;
return 0;
-err2:
- free(priv);
err1:
- free(mmc);
+ free(priv);
err0:
return ret;
}
projects / people / ms / u-boot.git / blobdiff