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dm: mmc: dwmmc: Support CONFIG_BLK

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Add support for using driver model for block devices in this driver.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2016-05-14 14:03:07 -06:00
parent ef5609c33f
commit 5e6ff810c3
2 changed files with 39 additions and 20 deletions
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52
drivers/mmc/dw_mmc.c
View File

@ -454,27 +454,40 @@ static const struct mmc_ops dwmci_ops = {
.init = dwmci_init,
};
void dwmci_setup_cfg(struct mmc_config *cfg, const char *name, int buswidth,
uint caps, u32 max_clk, u32 min_clk)
{
cfg->name = name;
cfg->ops = &dwmci_ops;
cfg->f_min = min_clk;
cfg->f_max = max_clk;
cfg->voltages = MMC_VDD_32_33 | MMC_VDD_33_34 | MMC_VDD_165_195;
cfg->host_caps = caps;
if (buswidth == 8) {
cfg->host_caps |= MMC_MODE_8BIT;
cfg->host_caps &= ~MMC_MODE_4BIT;
} else {
cfg->host_caps |= MMC_MODE_4BIT;
cfg->host_caps &= ~MMC_MODE_8BIT;
}
cfg->host_caps |= MMC_MODE_HS | MMC_MODE_HS_52MHz;
cfg->b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT;
}
#ifdef CONFIG_BLK
int dwmci_bind(struct udevice *dev, struct mmc *mmc, struct mmc_config *cfg)
{
return mmc_bind(dev, mmc, cfg);
}
#else
int add_dwmci(struct dwmci_host *host, u32 max_clk, u32 min_clk)
{
host->cfg.name = host->name;
host->cfg.ops = &dwmci_ops;
host->cfg.f_min = min_clk;
host->cfg.f_max = max_clk;
host->cfg.voltages = MMC_VDD_32_33 | MMC_VDD_33_34 | MMC_VDD_165_195;
host->cfg.host_caps = host->caps;
if (host->buswidth == 8) {
host->cfg.host_caps |= MMC_MODE_8BIT;
host->cfg.host_caps &= ~MMC_MODE_4BIT;
} else {
host->cfg.host_caps |= MMC_MODE_4BIT;
host->cfg.host_caps &= ~MMC_MODE_8BIT;
}
host->cfg.host_caps |= MMC_MODE_HS | MMC_MODE_HS_52MHz;
host->cfg.b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT;
dwmci_setup_cfg(&host->cfg, host->name, host->buswidth, host->caps,
max_clk, min_clk);
host->mmc = mmc_create(&host->cfg, host);
if (host->mmc == NULL)
@ -482,3 +495,4 @@ int add_dwmci(struct dwmci_host *host, u32 max_clk, u32 min_clk)
return 0;
}
#endif

7
include/dwmmc.h
View File

@ -180,8 +180,9 @@ struct dwmci_host {
* @freq: Frequency the host is trying to achieve
*/
unsigned int (*get_mmc_clk)(struct dwmci_host *host, uint freq);
#ifndef CONFIG_BLK
struct mmc_config cfg;
#endif
/* use fifo mode to read and write data */
bool fifo_mode;
@ -223,5 +224,9 @@ static inline u8 dwmci_readb(struct dwmci_host *host, int reg)
return readb(host->ioaddr + reg);
}
void dwmci_setup_cfg(struct mmc_config *cfg, const char *name, int buswidth,
uint caps, u32 max_clk, u32 min_clk);
int dwmci_bind(struct udevice *dev, struct mmc *mmc, struct mmc_config *cfg);
int add_dwmci(struct dwmci_host *host, u32 max_clk, u32 min_clk);
#endif /* __DWMMC_HW_H */