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mmc: arm_pl180_mmci: add .getcd callback

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Add .getcd callback to check is MMC card is present

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
This commit is contained in:
Patrice Chotard 2017-10-23 10:57:34 +02:00 • committed by Tom Rini
parent 5f256fe71d
commit 5829fe2d59
2 changed files with 26 additions and 2 deletions
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24
drivers/mmc/arm_pl180_mmci.c
View file

@ -18,9 +18,10 @@
#include <malloc.h> #include <malloc.h>
#include <mmc.h> #include <mmc.h>
#include "arm_pl180_mmci.h"
#include <asm/io.h> #include <asm/io.h>
#include <asm-generic/gpio.h>
#include "arm_pl180_mmci.h"
#ifdef CONFIG_DM_MMC #ifdef CONFIG_DM_MMC
#include <dm.h> #include <dm.h>
@ -435,6 +436,8 @@ static int arm_pl180_mmc_probe(struct udevice *dev)
MMC_CLOCK_MAX); MMC_CLOCK_MAX);
host->version2 = dev_get_driver_data(dev); host->version2 = dev_get_driver_data(dev);
gpio_request_by_name(dev, "cd-gpios", 0, &host->cd_gpio, GPIOD_IS_IN);
bus_width = dev_read_u32_default(dev, "bus-width", 1); bus_width = dev_read_u32_default(dev, "bus-width", 1);
switch (bus_width) { switch (bus_width) {
case 8: case 8:
@ -477,9 +480,26 @@ static int dm_host_set_ios(struct udevice *dev)
return host_set_ios(mmc); return host_set_ios(mmc);
} }
static int dm_mmc_getcd(struct udevice *dev)
{
struct arm_pl180_mmc_plat *pdata = dev_get_platdata(dev);
struct mmc *mmc = &pdata->mmc;
struct pl180_mmc_host *host = mmc->priv;
int value = 1;
if (dm_gpio_is_valid(&host->cd_gpio)) {
value = dm_gpio_get_value(&host->cd_gpio);
if (host->cd_inverted)
return !value;
}
return value;
}
static const struct dm_mmc_ops arm_pl180_dm_mmc_ops = { static const struct dm_mmc_ops arm_pl180_dm_mmc_ops = {
.send_cmd = dm_host_request, .send_cmd = dm_host_request,
.set_ios = dm_host_set_ios, .set_ios = dm_host_set_ios,
.get_cd = dm_mmc_getcd,
}; };
static int arm_pl180_mmc_ofdata_to_platdata(struct udevice *dev) static int arm_pl180_mmc_ofdata_to_platdata(struct udevice *dev)

4
drivers/mmc/arm_pl180_mmci.h
View file

@ -191,6 +191,10 @@ struct pl180_mmc_host {
unsigned int pwr_init; unsigned int pwr_init;
int version2; int version2;
struct mmc_config cfg; struct mmc_config cfg;
#ifdef CONFIG_DM_MMC
struct gpio_desc cd_gpio;
bool cd_inverted;
#endif
}; };
int arm_pl180_mmci_init(struct pl180_mmc_host *host, struct mmc **mmc); int arm_pl180_mmci_init(struct pl180_mmc_host *host, struct mmc **mmc);