AcoSail/kernel_optimize_test
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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc

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* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc:
  mmc: don't call switch on old cards
  mmc: fix broken if clause
  au1xmmc: Replace C code with call to ARRAY_SIZE() macro.
  mmc-atmel: remove linux/mmc/protocol.h dependencies
This commit is contained in:
Linus Torvalds 2007-06-11 11:31:18 -07:00
commit d5a169c879
3 changed files with 24 additions and 10 deletions
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26
drivers/mmc/core/sd.c
View File

@ -15,6 +15,7 @@
#include <linux/mmc/host.h>
#include <linux/mmc/card.h>
#include <linux/mmc/mmc.h>
#include <linux/mmc/sd.h>
#include "core.h"
#include "sysfs.h"
@ -192,6 +193,16 @@ static int mmc_read_switch(struct mmc_card *card)
int err;
u8 *status;
if (card->scr.sda_vsn < SCR_SPEC_VER_1)
return MMC_ERR_NONE;
if (!(card->csd.cmdclass & CCC_SWITCH)) {
printk(KERN_WARNING "%s: card lacks mandatory switch "
"function, performance might suffer.\n",
mmc_hostname(card->host));
return MMC_ERR_NONE;
}
err = MMC_ERR_FAILED;
status = kmalloc(64, GFP_KERNEL);
@ -204,10 +215,9 @@ static int mmc_read_switch(struct mmc_card *card)
err = mmc_sd_switch(card, 0, 0, 1, status);
if (err != MMC_ERR_NONE) {
/*
* Card not supporting high-speed will ignore the
* command.
*/
printk(KERN_WARNING "%s: problem reading switch "
"capabilities, performance might suffer.\n",
mmc_hostname(card->host));
err = MMC_ERR_NONE;
goto out;
}
@ -229,6 +239,12 @@ static int mmc_switch_hs(struct mmc_card *card)
int err;
u8 *status;
if (card->scr.sda_vsn < SCR_SPEC_VER_1)
return MMC_ERR_NONE;
if (!(card->csd.cmdclass & CCC_SWITCH))
return MMC_ERR_NONE;
if (!(card->host->caps & MMC_CAP_SD_HIGHSPEED))
return MMC_ERR_NONE;
@ -402,7 +418,7 @@ static int mmc_sd_init_card(struct mmc_host *host, u32 ocr,
/*
* Switch to wider bus (if supported).
*/
if ((host->caps && MMC_CAP_4_BIT_DATA) &&
if ((host->caps & MMC_CAP_4_BIT_DATA) &&
(card->scr.bus_widths & SD_SCR_BUS_WIDTH_4)) {
err = mmc_app_set_bus_width(card, MMC_BUS_WIDTH_4);
if (err != MMC_ERR_NONE)

5
drivers/mmc/host/at91_mci.c
View File

@ -417,7 +417,7 @@ static unsigned int at91_mci_send_command(struct at91mci_host *host, struct mmc_
blocks = 0;
}
if (cmd->opcode == MMC_STOP_TRANSMISSION)
if (host->flags & FL_SENT_STOP)
cmdr |= AT91_MCI_TRCMD_STOP;
if (host->bus_mode == MMC_BUSMODE_OPENDRAIN)
@ -563,8 +563,7 @@ static void at91mci_completed_command(struct at91mci_host *host)
if (status & (AT91_MCI_RINDE | AT91_MCI_RDIRE | AT91_MCI_RCRCE |
AT91_MCI_RENDE | AT91_MCI_RTOE | AT91_MCI_DCRCE |
AT91_MCI_DTOE | AT91_MCI_OVRE | AT91_MCI_UNRE)) {
if ((status & AT91_MCI_RCRCE) &&
((cmd->opcode == MMC_SEND_OP_COND) || (cmd->opcode == SD_APP_OP_COND))) {
if ((status & AT91_MCI_RCRCE) && !(mmc_resp_type(cmd) & MMC_RSP_CRC)) {
cmd->error = MMC_ERR_NONE;
}
else {

3
drivers/mmc/host/au1xmmc.c
View File

@ -76,8 +76,7 @@ const struct {
#endif
};
#define AU1XMMC_CONTROLLER_COUNT \
(sizeof(au1xmmc_card_table) / sizeof(au1xmmc_card_table[0]))
#define AU1XMMC_CONTROLLER_COUNT (ARRAY_SIZE(au1xmmc_card_table))
/* This array stores pointers for the hosts (used by the IRQ handler) */
struct au1xmmc_host *au1xmmc_hosts[AU1XMMC_CONTROLLER_COUNT];