diff options
| author | Richard Zhu <r65037@freescale.com> | 2011-04-18 14:52:50 +0800 |
|---|---|---|
| committer | Jason Liu <r64343@freescale.com> | 2012-01-09 20:08:17 +0800 |
| commit | d5647ed0ae69930ff0f7839829384a2249ee8cf8 (patch) | |
| tree | 2ff269f86f842fedd13d82441cc0633fa58b489b /drivers/mmc | |
| parent | da963e4111fe7ac4012d075ef8d82b54676f379a (diff) | |
ENGR00142266-2 eSDHC:Add the GPIO CD/WP on MX5x boards
sdhc: add the CD/WP on the MX5x boards
Signed-off-by: Richard Zhu <r65037@freescale.com>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/host/sdhci-esdhc-imx.c | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c index ba31abee9487..ce56d3ffab77 100644 --- a/drivers/mmc/host/sdhci-esdhc-imx.c +++ b/drivers/mmc/host/sdhci-esdhc-imx.c @@ -247,17 +247,24 @@ static int esdhc_pltfm_init(struct sdhci_host *host, struct sdhci_pltfm_data *pd if (!cpu_is_mx25()) host->quirks |= SDHCI_QUIRK_BROKEN_TIMEOUT_VAL; - if (cpu_is_mx25() || cpu_is_mx35()) { + if (cpu_is_mx25() || cpu_is_mx35()) /* Fix errata ENGcm07207 present on i.MX25 and i.MX35 */ host->quirks |= SDHCI_QUIRK_NO_MULTIBLOCK; - /* write_protect can't be routed to controller, use gpio */ - sdhci_esdhc_ops.get_ro = esdhc_pltfm_get_ro; - } + + /* write_protect can't be routed to controller, use gpio */ + sdhci_esdhc_ops.get_ro = esdhc_pltfm_get_ro; if (!(cpu_is_mx25() || cpu_is_mx35() || cpu_is_mx51())) imx_data->flags |= ESDHC_FLAG_MULTIBLK_NO_INT; if (boarddata) { + /* Device is always present, e.x, populated emmc device */ + if (boarddata->always_present) { + imx_data->flags |= ESDHC_FLAG_GPIO_FOR_CD_WP; + host->quirks &= ~SDHCI_QUIRK_BROKEN_CARD_DETECTION; + return 0; + } + err = gpio_request_one(boarddata->wp_gpio, GPIOF_IN, "ESDHC_WP"); if (err) { dev_warn(mmc_dev(host->mmc), @@ -272,10 +279,6 @@ static int esdhc_pltfm_init(struct sdhci_host *host, struct sdhci_pltfm_data *pd goto no_card_detect_pin; } - /* i.MX5x has issues to be researched */ - if (!cpu_is_mx25() && !cpu_is_mx35()) - goto not_supported; - err = request_irq(gpio_to_irq(boarddata->cd_gpio), cd_irq, IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING, mmc_hostname(host->mmc), host); @@ -295,7 +298,6 @@ static int esdhc_pltfm_init(struct sdhci_host *host, struct sdhci_pltfm_data *pd gpio_free(boarddata->cd_gpio); no_card_detect_pin: boarddata->cd_gpio = err; - not_supported: kfree(imx_data); return 0; } |