diff options
Diffstat (limited to 'board/olimex/imx233_olinuxino/linux-01-mmc-mxs-mmc-add-cd-inverted-property.patch')
| -rw-r--r-- | board/olimex/imx233_olinuxino/linux-01-mmc-mxs-mmc-add-cd-inverted-property.patch | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/board/olimex/imx233_olinuxino/linux-01-mmc-mxs-mmc-add-cd-inverted-property.patch b/board/olimex/imx233_olinuxino/linux-01-mmc-mxs-mmc-add-cd-inverted-property.patch new file mode 100644 index 000000000..6e58c8cd7 --- /dev/null +++ b/board/olimex/imx233_olinuxino/linux-01-mmc-mxs-mmc-add-cd-inverted-property.patch @@ -0,0 +1,47 @@ +From 4c0c9be05004d1eb674b7586216b3d93cc04531c Mon Sep 17 00:00:00 2001 +From: Marc Kleine-Budde <mkl@pengutronix.de> +Date: Wed, 10 Apr 2013 11:13:43 +0200 +Subject: [PATCH 1/3] mmc: mxs-mmc: add cd-inverted property + +The card-detect GPIO is inverted on some boards. Handle such case. + +Acked-by: Shawn Guo <shawn.guo@linaro.org> +Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> +Signed-off-by: Chris Ball <cjb@laptop.org> +--- + drivers/mmc/host/mxs-mmc.c | 5 ++++- + 1 file changed, 4 insertions(+), 1 deletion(-) + +diff --git a/drivers/mmc/host/mxs-mmc.c b/drivers/mmc/host/mxs-mmc.c +index 4efe302..0cdf1f6 100644 +--- a/drivers/mmc/host/mxs-mmc.c ++++ b/drivers/mmc/host/mxs-mmc.c +@@ -72,6 +72,7 @@ struct mxs_mmc_host { + int sdio_irq_en; + int wp_gpio; + bool wp_inverted; ++ bool cd_inverted; + }; + + static int mxs_mmc_get_ro(struct mmc_host *mmc) +@@ -96,7 +97,7 @@ static int mxs_mmc_get_cd(struct mmc_host *mmc) + struct mxs_ssp *ssp = &host->ssp; + + return !(readl(ssp->base + HW_SSP_STATUS(ssp)) & +- BM_SSP_STATUS_CARD_DETECT); ++ BM_SSP_STATUS_CARD_DETECT)) ^ host->cd_inverted; + } + + static void mxs_mmc_reset(struct mxs_mmc_host *host) +@@ -691,6 +692,8 @@ static int mxs_mmc_probe(struct platform_device *pdev) + if (flags & OF_GPIO_ACTIVE_LOW) + host->wp_inverted = 1; + ++ host->cd_inverted = of_property_read_bool(np, "cd-inverted"); ++ + mmc->f_min = 400000; + mmc->f_max = 288000000; + mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34; +-- +1.8.1.5 + |