The new API no longer uses the extra cd parameter that was used to store
the card presence state. Instead, this information is returned via the
function's return value. board_mmc_getcd() returns -1 to indicate that
no card-detection mechanism is implemented; 0 indicates that no card is
present and 1 is returned if it was detected that a card is present.
The rationale for this change can be found in the following email
thread:
http://lists.denx.de/pipermail/u-boot/2011-November/110180.html
In summary, the old API was not consistent with the rest of the MMC API
which always passes a struct mmc as the first parameter. Furthermore the
cd parameter was used to mean "card absence" in some implementations and
"card presence" in others.
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Tested-by: Jason Liu <jason.hui@linaro.org>
return MX51_PIN_EIM_CS2;
}
return MX51_PIN_EIM_CS2;
}
-int board_mmc_getcd(u8 *absent, struct mmc *mmc)
+int board_mmc_getcd(struct mmc *mmc)
{
struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
uint32_t cd = efika_mmc_cd();
{
struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
uint32_t cd = efika_mmc_cd();
if (cfg->esdhc_base == MMC_SDHC1_BASE_ADDR)
if (cfg->esdhc_base == MMC_SDHC1_BASE_ADDR)
- *absent = gpio_get_value(IOMUX_TO_GPIO(cd));
+ ret = !gpio_get_value(IOMUX_TO_GPIO(cd));
- *absent = gpio_get_value(IOMUX_TO_GPIO(MX51_PIN_GPIO1_8));
+ ret = !gpio_get_value(IOMUX_TO_GPIO(MX51_PIN_GPIO1_8));
}
int board_mmc_init(bd_t *bis)
}
int board_mmc_init(bd_t *bis)
}
/* this is a weak define that we are overriding */
}
/* this is a weak define that we are overriding */
-int board_mmc_getcd(u8 *cd, struct mmc *mmc)
+int board_mmc_getcd(struct mmc *mmc)
- /*
- * the only currently existing use of this function
- * (fsl_esdhc.c) suggests this function must return
- * *cs = TRUE if a card is NOT detected -> in most
- * cases the value of the pin when the detect switch
- * closes to GND
- */
- *cd = at91_get_gpio_value(CONFIG_SYS_MMC_CD_PIN) ? 1 : 0;
- return 0;
+ return !at91_get_gpio_value(CONFIG_SYS_MMC_CD_PIN);
}
#ifdef CONFIG_FSL_ESDHC
}
#ifdef CONFIG_FSL_ESDHC
-int board_mmc_getcd(u8 *cd, struct mmc *mmc)
+int board_mmc_getcd(struct mmc *mmc)
{
struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
{
struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
mxc_request_iomux(MX51_PIN_GPIO1_0, IOMUX_CONFIG_ALT1);
mxc_request_iomux(MX51_PIN_GPIO1_6, IOMUX_CONFIG_ALT0);
if (cfg->esdhc_base == MMC_SDHC1_BASE_ADDR)
mxc_request_iomux(MX51_PIN_GPIO1_0, IOMUX_CONFIG_ALT1);
mxc_request_iomux(MX51_PIN_GPIO1_6, IOMUX_CONFIG_ALT0);
if (cfg->esdhc_base == MMC_SDHC1_BASE_ADDR)
- *cd = gpio_get_value(0);
+ ret = !gpio_get_value(0);
- *cd = gpio_get_value(6);
+ ret = !gpio_get_value(6);
}
int board_mmc_init(bd_t *bis)
}
int board_mmc_init(bd_t *bis)
{MMC_SDHC2_BASE_ADDR, 1 },
};
{MMC_SDHC2_BASE_ADDR, 1 },
};
-int board_mmc_getcd(u8 *cd, struct mmc *mmc)
+int board_mmc_getcd(struct mmc *mmc)
{
struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
{
struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
mxc_request_iomux(MX53_PIN_GPIO_1, IOMUX_CONFIG_ALT1);
mxc_request_iomux(MX53_PIN_GPIO_4, IOMUX_CONFIG_ALT1);
if (cfg->esdhc_base == MMC_SDHC1_BASE_ADDR)
mxc_request_iomux(MX53_PIN_GPIO_1, IOMUX_CONFIG_ALT1);
mxc_request_iomux(MX53_PIN_GPIO_4, IOMUX_CONFIG_ALT1);
if (cfg->esdhc_base == MMC_SDHC1_BASE_ADDR)
- *cd = gpio_get_value(1); /*GPIO1_1*/
+ ret = !gpio_get_value(1); /* GPIO1_1 */
- *cd = gpio_get_value(4); /*GPIO1_4*/
+ ret = !gpio_get_value(4); /* GPIO1_4 */
}
int board_mmc_init(bd_t *bis)
}
int board_mmc_init(bd_t *bis)
{MMC_SDHC3_BASE_ADDR, 1},
};
{MMC_SDHC3_BASE_ADDR, 1},
};
-int board_mmc_getcd(u8 *cd, struct mmc *mmc)
+int board_mmc_getcd(struct mmc *mmc)
{
struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
{
struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
mxc_request_iomux(MX53_PIN_EIM_DA11, IOMUX_CONFIG_ALT1);
mxc_request_iomux(MX53_PIN_EIM_DA13, IOMUX_CONFIG_ALT1);
if (cfg->esdhc_base == MMC_SDHC1_BASE_ADDR)
mxc_request_iomux(MX53_PIN_EIM_DA11, IOMUX_CONFIG_ALT1);
mxc_request_iomux(MX53_PIN_EIM_DA13, IOMUX_CONFIG_ALT1);
if (cfg->esdhc_base == MMC_SDHC1_BASE_ADDR)
- *cd = gpio_get_value(77); /*GPIO3_13*/
+ ret = !gpio_get_value(77); /* GPIO3_13 */
- *cd = gpio_get_value(75); /*GPIO3_11*/
+ ret = !gpio_get_value(75); /* GPIO3_11 */
}
int board_mmc_init(bd_t *bis)
}
int board_mmc_init(bd_t *bis)
{MMC_SDHC3_BASE_ADDR, 1},
};
{MMC_SDHC3_BASE_ADDR, 1},
};
-int board_mmc_getcd(u8 *cd, struct mmc *mmc)
+int board_mmc_getcd(struct mmc *mmc)
{
struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
{
struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
mxc_request_iomux(MX53_PIN_EIM_DA11, IOMUX_CONFIG_ALT1);
mxc_request_iomux(MX53_PIN_EIM_DA13, IOMUX_CONFIG_ALT1);
if (cfg->esdhc_base == MMC_SDHC1_BASE_ADDR)
mxc_request_iomux(MX53_PIN_EIM_DA11, IOMUX_CONFIG_ALT1);
mxc_request_iomux(MX53_PIN_EIM_DA13, IOMUX_CONFIG_ALT1);
if (cfg->esdhc_base == MMC_SDHC1_BASE_ADDR)
- *cd = gpio_get_value(77); /*GPIO3_13*/
+ ret = !gpio_get_value(77); /* GPIO3_13 */
- *cd = gpio_get_value(75); /*GPIO3_11*/
+ ret = !gpio_get_value(75); /* GPIO3_11 */
}
int board_mmc_init(bd_t *bis)
}
int board_mmc_init(bd_t *bis)
{MMC_SDHC1_BASE_ADDR, 1},
};
{MMC_SDHC1_BASE_ADDR, 1},
};
-int board_mmc_getcd(u8 *cd, struct mmc *mmc)
+int board_mmc_getcd(struct mmc *mmc)
{
mxc_request_iomux(MX53_PIN_EIM_DA13, IOMUX_CONFIG_ALT1);
{
mxc_request_iomux(MX53_PIN_EIM_DA13, IOMUX_CONFIG_ALT1);
- *cd = gpio_get_value(77); /*GPIO3_13*/
-
- return 0;
+ return !gpio_get_value(77); /* GPIO3_13 */
}
int board_mmc_init(bd_t *bis)
}
int board_mmc_init(bd_t *bis)
}
/* this is a weak define that we are overriding */
}
/* this is a weak define that we are overriding */
-int board_mmc_getcd(u8 *cd, struct mmc *mmc)
+int board_mmc_getcd(struct mmc *mmc)
- /*
- * the only currently existing use of this function
- * (fsl_esdhc.c) suggests this function must return
- * *cs = TRUE if a card is NOT detected -> in most
- * cases the value of the pin when the detect switch
- * closes to GND
- */
- *cd = at91_get_gpio_value (CONFIG_SYS_MMC_CD_PIN) ? 1 : 0;
- return 0;
+ return !at91_get_gpio_value(CONFIG_SYS_MMC_CD_PIN);
struct fsl_esdhc *regs = (struct fsl_esdhc *)cfg->esdhc_base;
int timeout = 1000;
int ret = 0;
struct fsl_esdhc *regs = (struct fsl_esdhc *)cfg->esdhc_base;
int timeout = 1000;
int ret = 0;
/* Reset the entire host controller */
esdhc_write32(®s->sysctl, SYSCTL_RSTA);
/* Reset the entire host controller */
esdhc_write32(®s->sysctl, SYSCTL_RSTA);
esdhc_clrsetbits32(®s->sysctl, SYSCTL_TIMEOUT_MASK, 14 << 16);
/* Check if there is a callback for detecting the card */
esdhc_clrsetbits32(®s->sysctl, SYSCTL_TIMEOUT_MASK, 14 << 16);
/* Check if there is a callback for detecting the card */
- if (board_mmc_getcd(&card_absent, mmc)) {
+ ret = board_mmc_getcd(mmc);
+ if (ret < 0) {
timeout = 1000;
while (!(esdhc_read32(®s->prsstat) & PRSSTAT_CINS) &&
--timeout)
timeout = 1000;
while (!(esdhc_read32(®s->prsstat) & PRSSTAT_CINS) &&
--timeout)
if (timeout <= 0)
ret = NO_CARD_ERR;
} else {
if (timeout <= 0)
ret = NO_CARD_ERR;
} else {
static struct list_head mmc_devices;
static int cur_dev_num = -1;
static struct list_head mmc_devices;
static int cur_dev_num = -1;
-int __board_mmc_getcd(u8 *cd, struct mmc *mmc) {
+int __board_mmc_getcd(struct mmc *mmc) {
-int board_mmc_getcd(u8 *cd, struct mmc *mmc)__attribute__((weak,
+int board_mmc_getcd(struct mmc *mmc)__attribute__((weak,
alias("__board_mmc_getcd")));
int mmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, struct mmc_data *data)
alias("__board_mmc_getcd")));
int mmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, struct mmc_data *data)
int mmc_set_dev(int dev_num);
void print_mmc_devices(char separator);
int get_mmc_num(void);
int mmc_set_dev(int dev_num);
void print_mmc_devices(char separator);
int get_mmc_num(void);
-int board_mmc_getcd(u8 *cd, struct mmc *mmc);
+int board_mmc_getcd(struct mmc *mmc);
int mmc_switch_part(int dev_num, unsigned int part_num);
#ifdef CONFIG_GENERIC_MMC
int mmc_switch_part(int dev_num, unsigned int part_num);
#ifdef CONFIG_GENERIC_MMC