From: Nicolas Thill <nico@openwrt.org>
Date: Thu, 1 May 2008 23:38:34 +0000 (+0000)
Subject: add fixes for mmc_sdhci needed after [10637]
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=f6f49c75a0ecb061ef419464a90a8a1836bf1e09;p=openwrt%2Fstaging%2Fdangole.git

add fixes for mmc_sdhci needed after [10637]

SVN-Revision: 10997
---

diff --git a/target/linux/generic-2.6/patches-2.6.23/301-mmc_sdhci_fixes.patch b/target/linux/generic-2.6/patches-2.6.23/301-mmc_sdhci_fixes.patch
new file mode 100644
index 0000000000..6694f58959
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.23/301-mmc_sdhci_fixes.patch
@@ -0,0 +1,154 @@
+Index: linux-2.6.23.16/drivers/mmc/host/sdhci.c
+===================================================================
+--- linux-2.6.23.16.orig/drivers/mmc/host/sdhci.c	2008-04-28 08:33:14.000000000 +0200
++++ linux-2.6.23.16/drivers/mmc/host/sdhci.c	2008-04-28 08:36:40.000000000 +0200
+@@ -487,16 +487,16 @@
+ 	 * Controller doesn't count down when in single block mode.
+ 	 */
+ 	if (data->blocks == 1)
+-		blocks = (data->error == MMC_ERR_NONE) ? 0 : 1;
++		blocks = (data->error == 0) ? 0 : 1;
+ 	else
+ 		blocks = readw(host->ioaddr + SDHCI_BLOCK_COUNT);
+ 	data->bytes_xfered = data->blksz * (data->blocks - blocks);
+ 
+-	if ((data->error == MMC_ERR_NONE) && blocks) {
++	if (!data->error && blocks) {
+ 		printk(KERN_ERR "%s: Controller signalled completion even "
+ 			"though there were blocks left.\n",
+ 			mmc_hostname(host->mmc));
+-		data->error = MMC_ERR_FAILED;
++		data->error = -EIO;
+ 	}
+ 
+ 	if (data->stop) {
+@@ -504,7 +504,7 @@
+ 		 * The controller needs a reset of internal state machines
+ 		 * upon error conditions.
+ 		 */
+-		if (data->error != MMC_ERR_NONE) {
++		if (data->error) {
+ 			sdhci_reset(host, SDHCI_RESET_CMD);
+ 			sdhci_reset(host, SDHCI_RESET_DATA);
+ 		}
+@@ -539,7 +539,7 @@
+ 			printk(KERN_ERR "%s: Controller never released "
+ 				"inhibit bit(s).\n", mmc_hostname(host->mmc));
+ 			sdhci_dumpregs(host);
+-			cmd->error = MMC_ERR_FAILED;
++			cmd->error = -EIO;
+ 			tasklet_schedule(&host->finish_tasklet);
+ 			return;
+ 		}
+@@ -560,7 +560,7 @@
+ 	if ((cmd->flags & MMC_RSP_136) && (cmd->flags & MMC_RSP_BUSY)) {
+ 		printk(KERN_ERR "%s: Unsupported response type!\n",
+ 			mmc_hostname(host->mmc));
+-		cmd->error = MMC_ERR_INVALID;
++		cmd->error = -EINVAL;
+ 		tasklet_schedule(&host->finish_tasklet);
+ 		return;
+ 	}
+@@ -607,7 +607,7 @@
+ 		}
+ 	}
+ 
+-	host->cmd->error = MMC_ERR_NONE;
++	host->cmd->error = 0;
+ 
+ 	if (host->data && host->data_early)
+ 		sdhci_finish_data(host);
+@@ -730,7 +730,7 @@
+ 	host->mrq = mrq;
+ 
+ 	if (!(readl(host->ioaddr + SDHCI_PRESENT_STATE) & SDHCI_CARD_PRESENT)) {
+-		host->mrq->cmd->error = MMC_ERR_TIMEOUT;
++		host->mrq->cmd->error = -ENOMEDIUM;
+ 		tasklet_schedule(&host->finish_tasklet);
+ 	} else
+ 		sdhci_send_command(host, mrq->cmd);
+@@ -839,7 +839,7 @@
+ 			sdhci_reset(host, SDHCI_RESET_CMD);
+ 			sdhci_reset(host, SDHCI_RESET_DATA);
+ 
+-			host->mrq->cmd->error = MMC_ERR_FAILED;
++			host->mrq->cmd->error = -ENOMEDIUM;
+ 			tasklet_schedule(&host->finish_tasklet);
+ 		}
+ 	}
+@@ -867,9 +867,9 @@
+ 	 * The controller needs a reset of internal state machines
+ 	 * upon error conditions.
+ 	 */
+-	if ((mrq->cmd->error != MMC_ERR_NONE) ||
+-		(mrq->data && ((mrq->data->error != MMC_ERR_NONE) ||
+-		(mrq->data->stop && (mrq->data->stop->error != MMC_ERR_NONE))))) {
++	if (mrq->cmd->error ||
++		(mrq->data && (mrq->data->error ||
++		(mrq->data->stop && mrq->data->stop->error)))) {
+ 
+ 		/* Some controllers need this kick or reset won't work here */
+ 		if (host->chip->quirks & SDHCI_QUIRK_CLOCK_BEFORE_RESET) {
+@@ -914,13 +914,13 @@
+ 		sdhci_dumpregs(host);
+ 
+ 		if (host->data) {
+-			host->data->error = MMC_ERR_TIMEOUT;
++			host->data->error = -ETIMEDOUT;
+ 			sdhci_finish_data(host);
+ 		} else {
+ 			if (host->cmd)
+-				host->cmd->error = MMC_ERR_TIMEOUT;
++				host->cmd->error = -ETIMEDOUT;
+ 			else
+-				host->mrq->cmd->error = MMC_ERR_TIMEOUT;
++				host->mrq->cmd->error = -ETIMEDOUT;
+ 
+ 			tasklet_schedule(&host->finish_tasklet);
+ 		}
+@@ -949,13 +949,12 @@
+ 	}
+ 
+ 	if (intmask & SDHCI_INT_TIMEOUT)
+-		host->cmd->error = MMC_ERR_TIMEOUT;
+-	else if (intmask & SDHCI_INT_CRC)
+-		host->cmd->error = MMC_ERR_BADCRC;
+-	else if (intmask & (SDHCI_INT_END_BIT | SDHCI_INT_INDEX))
+-		host->cmd->error = MMC_ERR_FAILED;
++		host->cmd->error = -ETIMEDOUT;
++	else if (intmask & (SDHCI_INT_CRC | SDHCI_INT_END_BIT |
++			SDHCI_INT_INDEX))
++		host->cmd->error = -EILSEQ;
+ 
+-	if (host->cmd->error != MMC_ERR_NONE)
++	if (host->cmd->error)
+ 		tasklet_schedule(&host->finish_tasklet);
+ 	else if (intmask & SDHCI_INT_RESPONSE)
+ 		sdhci_finish_command(host);
+@@ -982,13 +981,11 @@
+ 	}
+ 
+ 	if (intmask & SDHCI_INT_DATA_TIMEOUT)
+-		host->data->error = MMC_ERR_TIMEOUT;
+-	else if (intmask & SDHCI_INT_DATA_CRC)
+-		host->data->error = MMC_ERR_BADCRC;
+-	else if (intmask & SDHCI_INT_DATA_END_BIT)
+-		host->data->error = MMC_ERR_FAILED;
++		host->data->error = -ETIMEDOUT;
++	else if (intmask & (SDHCI_INT_DATA_CRC | SDHCI_INT_DATA_END_BIT))
++		host->data->error = -EILSEQ;
+ 
+-	if (host->data->error != MMC_ERR_NONE)
++	if (host->data->error)
+ 		sdhci_finish_data(host);
+ 	else {
+ 		if (intmask & (SDHCI_INT_DATA_AVAIL | SDHCI_INT_SPACE_AVAIL))
+@@ -1320,7 +1317,7 @@
+ 	mmc->ops = &sdhci_ops;
+ 	mmc->f_min = host->max_clk / 256;
+ 	mmc->f_max = host->max_clk;
+-	mmc->caps = MMC_CAP_4_BIT_DATA | MMC_CAP_MULTIWRITE | MMC_CAP_BYTEBLOCK;
++	mmc->caps = MMC_CAP_4_BIT_DATA | MMC_CAP_MULTIWRITE;
+ 
+ 	if (caps & SDHCI_CAN_DO_HISPD)
+ 		mmc->caps |= MMC_CAP_SD_HIGHSPEED;