#include <linux/mmc/core.h>
#include <linux/mmc/mmc.h>
#include <linux/io.h>
-#include <linux/semaphore.h>
#include <linux/gpio.h>
#include <linux/regulator/consumer.h>
#include <linux/pm_runtime.h>
#include <plat/cpu.h>
/* OMAP HSMMC Host Controller Registers */
-#define OMAP_HSMMC_SYSCONFIG 0x0010
#define OMAP_HSMMC_SYSSTATUS 0x0014
#define OMAP_HSMMC_CON 0x002C
#define OMAP_HSMMC_BLK 0x0104
unsigned int dma_sg_idx;
unsigned char bus_mode;
unsigned char power_mode;
- u32 *buffer;
- u32 bytesleft;
int suspended;
int irq;
int use_dma, dma_ch;
int slot_id;
int response_busy;
int context_loss;
- int vdd;
int protect_card;
int reqs_blocked;
int use_reg;
struct regulator *reg;
int ocr_value = 0;
- mmc_slot(host).set_power = omap_hsmmc_set_power;
-
reg = regulator_get(host->dev, "vmmc");
if (IS_ERR(reg)) {
dev_dbg(host->dev, "vmmc regulator missing\n");
+ return PTR_ERR(reg);
} else {
+ mmc_slot(host).set_power = omap_hsmmc_set_power;
host->vcc = reg;
ocr_value = mmc_regulator_get_ocrmask(reg);
if (!mmc_slot(host).ocr_mask) {
unsigned long regval;
unsigned long timeout;
- dev_dbg(mmc_dev(host->mmc), "Set clock to %uHz\n", ios->clock);
+ dev_vdbg(mmc_dev(host->mmc), "Set clock to %uHz\n", ios->clock);
omap_hsmmc_stop_clock(host);
if (host->context_loss == context_loss)
return 1;
- /* Wait for hardware reset */
- timeout = jiffies + msecs_to_jiffies(MMC_TIMEOUT_MS);
- while ((OMAP_HSMMC_READ(host->base, SYSSTATUS) & RESETDONE) != RESETDONE
- && time_before(jiffies, timeout))
- ;
-
- /* Do software reset */
- OMAP_HSMMC_WRITE(host->base, SYSCONFIG, SOFTRESET);
- timeout = jiffies + msecs_to_jiffies(MMC_TIMEOUT_MS);
- while ((OMAP_HSMMC_READ(host->base, SYSSTATUS) & RESETDONE) != RESETDONE
- && time_before(jiffies, timeout))
- ;
-
- OMAP_HSMMC_WRITE(host->base, SYSCONFIG,
- OMAP_HSMMC_READ(host->base, SYSCONFIG) | AUTOIDLE);
+ if (!OMAP_HSMMC_READ(host->base, SYSSTATUS) & RESETDONE)
+ return 1;
if (host->pdata->controller_flags & OMAP_HSMMC_SUPPORTS_DUAL_VOLT) {
if (host->power_mode != MMC_POWER_OFF &&
{
int cmdreg = 0, resptype = 0, cmdtype = 0;
- dev_dbg(mmc_dev(host->mmc), "%s: CMD%d, argument 0x%08x\n",
+ dev_vdbg(mmc_dev(host->mmc), "%s: CMD%d, argument 0x%08x\n",
mmc_hostname(host->mmc), cmd->opcode, cmd->arg);
host->cmd = cmd;
buf += len;
}
- dev_dbg(mmc_dev(host->mmc), "%s\n", res);
+ dev_vdbg(mmc_dev(host->mmc), "%s\n", res);
}
#else
static inline void omap_hsmmc_dbg_report_irq(struct omap_hsmmc_host *host,
__func__);
}
+static void hsmmc_command_incomplete(struct omap_hsmmc_host *host, int err)
+{
+ omap_hsmmc_reset_controller_fsm(host, SRC);
+ host->cmd->error = err;
+
+ if (host->data) {
+ omap_hsmmc_reset_controller_fsm(host, SRD);
+ omap_hsmmc_dma_cleanup(host, err);
+ }
+
+}
+
static void omap_hsmmc_do_irq(struct omap_hsmmc_host *host, int status)
{
struct mmc_data *data;
int end_cmd = 0, end_trans = 0;
- if (!host->req_in_progress) {
- do {
- OMAP_HSMMC_WRITE(host->base, STAT, status);
- /* Flush posted write */
- status = OMAP_HSMMC_READ(host->base, STAT);
- } while (status & INT_EN_MASK);
- return;
- }
-
data = host->data;
- dev_dbg(mmc_dev(host->mmc), "IRQ Status is %x\n", status);
+ dev_vdbg(mmc_dev(host->mmc), "IRQ Status is %x\n", status);
if (status & ERR) {
omap_hsmmc_dbg_report_irq(host, status);
- if ((status & CMD_TIMEOUT) ||
- (status & CMD_CRC)) {
- if (host->cmd) {
- if (status & CMD_TIMEOUT) {
- omap_hsmmc_reset_controller_fsm(host,
- SRC);
- host->cmd->error = -ETIMEDOUT;
- } else {
- host->cmd->error = -EILSEQ;
- }
- end_cmd = 1;
- }
- if (host->data || host->response_busy) {
- if (host->data)
- omap_hsmmc_dma_cleanup(host,
- -ETIMEDOUT);
- host->response_busy = 0;
- omap_hsmmc_reset_controller_fsm(host, SRD);
- }
- }
- if ((status & DATA_TIMEOUT) ||
- (status & DATA_CRC)) {
- if (host->data || host->response_busy) {
- int err = (status & DATA_TIMEOUT) ?
- -ETIMEDOUT : -EILSEQ;
-
- if (host->data)
- omap_hsmmc_dma_cleanup(host, err);
- else
- host->mrq->cmd->error = err;
- host->response_busy = 0;
- omap_hsmmc_reset_controller_fsm(host, SRD);
- end_trans = 1;
- }
- }
- if (status & CARD_ERR) {
- dev_dbg(mmc_dev(host->mmc),
- "Ignoring card err CMD%d\n", host->cmd->opcode);
- if (host->cmd)
- end_cmd = 1;
- if (host->data)
- end_trans = 1;
+ if (status & (CMD_TIMEOUT | DATA_TIMEOUT))
+ hsmmc_command_incomplete(host, -ETIMEDOUT);
+ else if (status & (CMD_CRC | DATA_CRC))
+ hsmmc_command_incomplete(host, -EILSEQ);
+
+ end_cmd = 1;
+ if (host->data || host->response_busy) {
+ end_trans = 1;
+ host->response_busy = 0;
}
}
- OMAP_HSMMC_WRITE(host->base, STAT, status);
-
if (end_cmd || ((status & CC) && host->cmd))
omap_hsmmc_cmd_done(host, host->cmd);
if ((end_trans || (status & TC)) && host->mrq)
int status;
status = OMAP_HSMMC_READ(host->base, STAT);
- do {
+ while (status & INT_EN_MASK && host->req_in_progress) {
omap_hsmmc_do_irq(host, status);
+
/* Flush posted write */
+ OMAP_HSMMC_WRITE(host->base, STAT, status);
status = OMAP_HSMMC_READ(host->base, STAT);
- } while (status & INT_EN_MASK);
+ }
return IRQ_HANDLED;
}
case MMC_POWER_OFF:
mmc_slot(host).set_power(host->dev, host->slot_id,
0, 0);
- host->vdd = 0;
break;
case MMC_POWER_UP:
mmc_slot(host).set_power(host->dev, host->slot_id,
1, ios->vdd);
- host->vdd = ios->vdd;
break;
case MMC_POWER_ON:
do_send_init_stream = 1;
value = OMAP_HSMMC_READ(host->base, CAPA);
OMAP_HSMMC_WRITE(host->base, CAPA, value | capa);
- /* Set the controller to AUTO IDLE mode */
- value = OMAP_HSMMC_READ(host->base, SYSCONFIG);
- OMAP_HSMMC_WRITE(host->base, SYSCONFIG, value | AUTOIDLE);
-
/* Set SD bus power bit */
set_sd_bus_power(host);
}
pm_runtime_get_sync(host->dev);
- seq_printf(s, "SYSCONFIG:\t0x%08x\n",
- OMAP_HSMMC_READ(host->base, SYSCONFIG));
seq_printf(s, "CON:\t\t0x%08x\n",
OMAP_HSMMC_READ(host->base, CON));
seq_printf(s, "HCTL:\t\t0x%08x\n",
if (ret) {
host->suspended = 0;
if (host->pdata->resume) {
- ret = host->pdata->resume(dev, host->slot_id);
- if (ret)
+ if (host->pdata->resume(dev, host->slot_id))
dev_dbg(dev, "Unmask interrupt failed\n");
}
goto err;
projects / karo-tx-linux.git / blobdiff