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authorJohn Crispin <john@phrozen.org>2016-06-28 11:15:31 +0200
committerJohn Crispin <john@phrozen.org>2016-06-30 22:48:39 +0200
commit2dc9beddc089bdaa9a2a39aeeb88c7ae14fda56c (patch)
tree8f2eebfdd88b79a1d4238b7bb67e0f0e1af0b74d
parent81add8f753bb26903e7bac8a690296019ef77dc2 (diff)
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ramips: disable the WP pin on the SDK mmc driver
Signed-off-by: John Crispin <john@phrozen.org>
-rw-r--r--target/linux/ramips/patches-4.4/0085-sdhci-no-wp.patch21
1 files changed, 21 insertions, 0 deletions
diff --git a/target/linux/ramips/patches-4.4/0085-sdhci-no-wp.patch b/target/linux/ramips/patches-4.4/0085-sdhci-no-wp.patch
new file mode 100644
index 0000000000..46b1a6c04c
--- /dev/null
+++ b/target/linux/ramips/patches-4.4/0085-sdhci-no-wp.patch
@@ -0,0 +1,21 @@
+--- a/drivers/mmc/host/mtk-mmc/sd.c
++++ b/drivers/mmc/host/mtk-mmc/sd.c
+@@ -195,7 +195,7 @@
+ .dat_drv = 4,
+ .data_pins = 4,
+ .data_offset = 0,
+- .flags = MSDC_SYS_SUSPEND | MSDC_WP_PIN_EN | MSDC_CD_PIN_EN | MSDC_REMOVABLE | MSDC_HIGHSPEED,
++ .flags = MSDC_SYS_SUSPEND | MSDC_CD_PIN_EN | MSDC_REMOVABLE | MSDC_HIGHSPEED,
+ // .flags = MSDC_SYS_SUSPEND | MSDC_WP_PIN_EN | MSDC_CD_PIN_EN | MSDC_REMOVABLE,
+ };
+
+@@ -2746,6 +2746,9 @@
+ int ret, irq;
+
+ pdev->dev.platform_data = &msdc0_hw;
++
++ if (of_property_read_bool(pdev->dev.of_node, "mtk,wp-en"))
++ msdc0_hw.flags |= MSDC_WP_PIN_EN;
+
+ /* Allocate MMC host for this device */
+ mmc = mmc_alloc_host(sizeof(struct msdc_host), &pdev->dev);