mirror of
https://github.com/archlinuxarm/PKGBUILDs.git
synced 2024-12-08 23:03:46 +00:00
70 lines
2.1 KiB
Diff
70 lines
2.1 KiB
Diff
From f94bcecd5cb322d2e201ee6bb34eb2dda6301fb4 Mon Sep 17 00:00:00 2001
|
|
From: Kevin Mihelich <kevin@archlinuxarm.org>
|
|
Date: Sun, 25 Feb 2018 16:38:04 -0700
|
|
Subject: [PATCH 4/6] Fix mvsdio SD card detection
|
|
|
|
Helps SD card detection on PPv4.
|
|
|
|
Signed-off-by: Kevin Mihelich <kevin@archlinuxarm.org>
|
|
---
|
|
drivers/mmc/core/core.c | 2 +-
|
|
drivers/mmc/core/sd.c | 9 +++++++++
|
|
drivers/mmc/host/mvsdio.c | 2 ++
|
|
3 files changed, 12 insertions(+), 1 deletion(-)
|
|
|
|
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
|
|
index 221127324709..f5fa685312db 100644
|
|
--- a/drivers/mmc/core/core.c
|
|
+++ b/drivers/mmc/core/core.c
|
|
@@ -712,7 +712,7 @@ void mmc_set_data_timeout(struct mmc_data *data, const struct mmc_card *card)
|
|
*/
|
|
limit_us = 3000000;
|
|
else
|
|
- limit_us = 100000;
|
|
+ limit_us = 200000;
|
|
|
|
/*
|
|
* SDHC cards always use these fixed values.
|
|
diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c
|
|
index d681e8aaca83..318bc37a6816 100644
|
|
--- a/drivers/mmc/core/sd.c
|
|
+++ b/drivers/mmc/core/sd.c
|
|
@@ -376,6 +376,15 @@ int mmc_sd_switch_hs(struct mmc_card *card)
|
|
if (!status)
|
|
return -ENOMEM;
|
|
|
|
+ /*
|
|
+ * Some SDHC cards, notably those with a Sandisk SD controller
|
|
+ * (also found in Kingston products) need a bit of slack
|
|
+ * before successfully handling the SWITCH command. So far,
|
|
+ * cards identifying themselves as "SD04G" and "SD08G" are
|
|
+ * affected
|
|
+ */
|
|
+ udelay(100);
|
|
+
|
|
err = mmc_sd_switch(card, 1, 0, 1, status);
|
|
if (err)
|
|
goto out;
|
|
diff --git a/drivers/mmc/host/mvsdio.c b/drivers/mmc/host/mvsdio.c
|
|
index 74a0a7fbbf7f..db646d337d54 100644
|
|
--- a/drivers/mmc/host/mvsdio.c
|
|
+++ b/drivers/mmc/host/mvsdio.c
|
|
@@ -20,6 +20,7 @@
|
|
#include <linux/of_irq.h>
|
|
#include <linux/mmc/host.h>
|
|
#include <linux/mmc/slot-gpio.h>
|
|
+#include <linux/mmc/sd.h>
|
|
|
|
#include <linux/sizes.h>
|
|
#include <asm/unaligned.h>
|
|
@@ -147,6 +148,7 @@ static void mvsd_request(struct mmc_host *mmc, struct mmc_request *mrq)
|
|
|
|
dev_dbg(host->dev, "cmd %d (hw state 0x%04x)\n",
|
|
cmd->opcode, mvsd_read(MVSD_HW_STATE));
|
|
+ if (cmd->opcode == SD_SWITCH) mdelay(1); /* Voodoo */
|
|
|
|
cmdreg = MVSD_CMD_INDEX(cmd->opcode);
|
|
|
|
--
|
|
2.21.0
|
|
|