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mmc: tegra: move pad_init_mmc() into MMC driver

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pad_init_mmc() is performing an SoC-specific operation, using registers
within the MMC controller. There's no reason to implement this code
outside the MMC driver, so move it inside the driver.

Cc: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
This commit is contained in:
Stephen Warren 2016-09-13 10:45:44 -06:00 • committed by Tom Warren
parent 67748a73b1
commit 6b83588eea
4 changed files with 28 additions and 36 deletions
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2
arch/arm/include/asm/arch-tegra/tegra_mmc.h
View file

@ -151,7 +151,5 @@ struct mmc_host {
struct mmc_config cfg; /* mmc configuration */
};
void pad_init_mmc(struct mmc_host *host);
#endif /* __ASSEMBLY__ */
#endif /* __TEGRA_MMC_H_ */

5
arch/arm/mach-tegra/board186.c
View file

@ -7,7 +7,6 @@
#include <common.h>
#include <asm/arch/tegra.h>
#include <asm/arch-tegra/mmc.h>
#include <asm/arch-tegra/tegra_mmc.h>
DECLARE_GLOBAL_DATA_PTR;
@ -31,10 +30,6 @@ int board_late_init(void)
return 0;
}
void pad_init_mmc(struct mmc_host *host)
{
}
int board_mmc_init(bd_t *bd)
{
tegra_mmc_init();

29
arch/arm/mach-tegra/board2.c
View file

@ -33,7 +33,6 @@
#include <usb.h>
#endif
#ifdef CONFIG_TEGRA_MMC
#include <asm/arch-tegra/tegra_mmc.h>
#include <asm/arch-tegra/mmc.h>
#endif
#include <asm/arch-tegra/xusb-padctl.h>
@ -248,34 +247,6 @@ int board_mmc_init(bd_t *bd)
return 0;
}
void pad_init_mmc(struct mmc_host *host)
{
#if defined(CONFIG_TEGRA30)
enum periph_id id = host->mmc_id;
u32 val;
debug("%s: sdmmc address = %08x, id = %d\n", __func__,
(unsigned int)host->reg, id);
/* Set the pad drive strength for SDMMC1 or 3 only */
if (id != PERIPH_ID_SDMMC1 && id != PERIPH_ID_SDMMC3) {
debug("%s: settings are only valid for SDMMC1/SDMMC3!\n",
__func__);
return;
}
val = readl(&host->reg->sdmemcmppadctl);
val &= 0xFFFFFFF0;
val |= MEMCOMP_PADCTRL_VREF;
writel(val, &host->reg->sdmemcmppadctl);
val = readl(&host->reg->autocalcfg);
val &= 0xFFFF0000;
val |= AUTO_CAL_PU_OFFSET | AUTO_CAL_PD_OFFSET | AUTO_CAL_ENABLED;
writel(val, &host->reg->autocalcfg);
#endif /* T30 */
}
#endif /* MMC */
/*

28
drivers/mmc/tegra_mmc.c
View file

@ -448,6 +448,34 @@ static void tegra_mmc_set_ios(struct mmc *mmc)
debug("mmc_set_ios: hostctl = %08X\n", ctrl);
}
static void pad_init_mmc(struct mmc_host *host)
{
#if defined(CONFIG_TEGRA30)
enum periph_id id = host->mmc_id;
u32 val;
debug("%s: sdmmc address = %08x, id = %d\n", __func__,
(unsigned int)host->reg, id);
/* Set the pad drive strength for SDMMC1 or 3 only */
if (id != PERIPH_ID_SDMMC1 && id != PERIPH_ID_SDMMC3) {
debug("%s: settings are only valid for SDMMC1/SDMMC3!\n",
__func__);
return;
}
val = readl(&host->reg->sdmemcmppadctl);
val &= 0xFFFFFFF0;
val |= MEMCOMP_PADCTRL_VREF;
writel(val, &host->reg->sdmemcmppadctl);
val = readl(&host->reg->autocalcfg);
val &= 0xFFFF0000;
val |= AUTO_CAL_PU_OFFSET | AUTO_CAL_PD_OFFSET | AUTO_CAL_ENABLED;
writel(val, &host->reg->autocalcfg);
#endif
}
static void mmc_reset(struct mmc_host *host, struct mmc *mmc)
{
unsigned int timeout;