mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-15 23:14:31 +08:00
mmc: sdhci: add a quirk for single block transactions
This patch defines a quirk to disable the block count for single block transactions. It is a preparation and will be used by Fujitsu SDHCI controller f_sdh30 driver. Signed-off-by: Vincent Yang <Vincent.Yang@tw.fujitsu.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
parent
67d0d04a76
commit
d3fc5d71ac
@ -904,7 +904,7 @@ static void sdhci_prepare_data(struct sdhci_host *host, struct mmc_command *cmd)
|
||||
static void sdhci_set_transfer_mode(struct sdhci_host *host,
|
||||
struct mmc_command *cmd)
|
||||
{
|
||||
u16 mode;
|
||||
u16 mode = 0;
|
||||
struct mmc_data *data = cmd->data;
|
||||
|
||||
if (data == NULL) {
|
||||
@ -922,9 +922,11 @@ static void sdhci_set_transfer_mode(struct sdhci_host *host,
|
||||
|
||||
WARN_ON(!host->data);
|
||||
|
||||
mode = SDHCI_TRNS_BLK_CNT_EN;
|
||||
if (!(host->quirks2 & SDHCI_QUIRK2_SUPPORT_SINGLE))
|
||||
mode = SDHCI_TRNS_BLK_CNT_EN;
|
||||
|
||||
if (mmc_op_multi(cmd->opcode) || data->blocks > 1) {
|
||||
mode |= SDHCI_TRNS_MULTI;
|
||||
mode = SDHCI_TRNS_BLK_CNT_EN | SDHCI_TRNS_MULTI;
|
||||
/*
|
||||
* If we are sending CMD23, CMD12 never gets sent
|
||||
* on successful completion (so no Auto-CMD12).
|
||||
|
@ -113,6 +113,8 @@ struct sdhci_host {
|
||||
#define SDHCI_QUIRK2_CAPS_BIT63_FOR_HS400 (1<<11)
|
||||
/* forced tuned clock */
|
||||
#define SDHCI_QUIRK2_TUNING_WORK_AROUND (1<<12)
|
||||
/* disable the block count for single block transactions */
|
||||
#define SDHCI_QUIRK2_SUPPORT_SINGLE (1<<13)
|
||||
|
||||
int irq; /* Device IRQ */
|
||||
void __iomem *ioaddr; /* Mapped address */
|
||||
|
Loading…
Reference in New Issue
Block a user