diff options
| author | Jason Zhu <jason.zhu@rock-chips.com> | 2019-02-22 21:48:53 +0800 |
|---|---|---|
| committer | Jianhong Chen <chenjh@rock-chips.com> | 2019-03-28 15:51:05 +0800 |
| commit | 5743ef647faabacaf12f7272c027f0ea6dee8557 (patch) | |
| tree | 642fd5dfccc0ef0a2e21935e337ef5778ba3f9c5 | |
| parent | 0476014ebb59f4b6ab5b30c8b192ebec6ac99655 (diff) | |
mmc: dw_mmc: support get_cd in struct dm_mmc_ops
Add function get_cd to detect storage device directly instead of detect
it by mmc command.
Change-Id: I486dee836c62092baabe40fc6de995904849f91d
Signed-off-by: Jason Zhu <jason.zhu@rock-chips.com>
| -rw-r--r-- | drivers/mmc/dw_mmc.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/mmc/dw_mmc.c b/drivers/mmc/dw_mmc.c index 3a13b51a41..81981c7911 100644 --- a/drivers/mmc/dw_mmc.c +++ b/drivers/mmc/dw_mmc.c @@ -13,6 +13,10 @@ #include <memalign.h> #include <mmc.h> #include <dwmmc.h> +#ifdef CONFIG_DM_GPIO +#include <asm/gpio.h> +#include <asm-generic/gpio.h> +#endif #define PAGE_SIZE 4096 @@ -623,6 +627,24 @@ static int dwmci_init(struct mmc *mmc) return 0; } +static int dwmci_get_cd(struct udevice *dev) +{ + int ret = -1; +#ifndef CONFIG_SPL_BUILD +#ifdef CONFIG_DM_GPIO + struct gpio_desc detect; + + ret = gpio_request_by_name(dev, "cd-gpios", 0, &detect, GPIOD_IS_IN); + if (ret) { + return ret; + } + + ret = !dm_gpio_get_value(&detect); +#endif +#endif + return ret; +} + #ifdef CONFIG_DM_MMC int dwmci_probe(struct udevice *dev) { @@ -635,6 +657,7 @@ const struct dm_mmc_ops dm_dwmci_ops = { .card_busy = dwmci_card_busy, .send_cmd = dwmci_send_cmd, .set_ios = dwmci_set_ios, + .get_cd = dwmci_get_cd, .execute_tuning = dwmci_execute_tuning, }; @@ -643,6 +666,7 @@ static const struct mmc_ops dwmci_ops = { .card_busy = dwmci_card_busy, .send_cmd = dwmci_send_cmd, .set_ios = dwmci_set_ios, + .get_cd = dwmci_get_cd, .init = dwmci_init, .execute_tuning = dwmci_execute_tuning, }; |