diff options
| author | stanley.miao <stanley.miao@windriver.com> | 2010-05-13 16:39:31 +0400 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2010-05-20 22:17:51 +0400 |
| commit | 03e7e170d6fdc5b6f75d1ab2cc1a6cb4f2b6b8c4 (patch) | |
| tree | 43ec8348bdd5d8ad0f940c4b688b083b9c871e9f | |
| parent | ed8303fc111e58530e22bd29b0d7e08dced75999 (diff) | |
| download | linux-03e7e170d6fdc5b6f75d1ab2cc1a6cb4f2b6b8c4.tar.xz | |
omap: hsmmc: fix the hsmmc driver for am3517
AM3517 don't have the register OMAP343X_CONTROL_PBIAS_LITE and the regulators
like "vmmc", so we set a noop "set_power" function for it.
Signed-off-by: Stanley.Miao <stanley.miao@windriver.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
| -rw-r--r-- | arch/arm/mach-omap2/hsmmc.c | 27 | ||||
| -rw-r--r-- | arch/arm/plat-omap/include/plat/mmc.h | 4 |
2 files changed, 25 insertions, 6 deletions
diff --git a/arch/arm/mach-omap2/hsmmc.c b/arch/arm/mach-omap2/hsmmc.c index 9ad229594b46..2d36f3afbd4e 100644 --- a/arch/arm/mach-omap2/hsmmc.c +++ b/arch/arm/mach-omap2/hsmmc.c @@ -139,6 +139,12 @@ static void hsmmc23_before_set_reg(struct device *dev, int slot, } } +static int nop_mmc_set_power(struct device *dev, int slot, int power_on, + int vdd) +{ + return 0; +} + static struct omap_mmc_platform_data *hsmmc_data[OMAP34XX_NR_MMC] __initdata; void __init omap2_hsmmc_init(struct omap2_hsmmc_info *controllers) @@ -216,11 +222,18 @@ void __init omap2_hsmmc_init(struct omap2_hsmmc_info *controllers) */ mmc->slots[0].ocr_mask = c->ocr_mask; + if (cpu_is_omap3517() || cpu_is_omap3505()) + mmc->slots[0].set_power = nop_mmc_set_power; + else + mmc->slots[0].features |= HSMMC_HAS_PBIAS; + switch (c->mmc) { case 1: - /* on-chip level shifting via PBIAS0/PBIAS1 */ - mmc->slots[0].before_set_reg = hsmmc1_before_set_reg; - mmc->slots[0].after_set_reg = hsmmc1_after_set_reg; + if (mmc->slots[0].features & HSMMC_HAS_PBIAS) { + /* on-chip level shifting via PBIAS0/PBIAS1 */ + mmc->slots[0].before_set_reg = hsmmc1_before_set_reg; + mmc->slots[0].after_set_reg = hsmmc1_after_set_reg; + } /* Omap3630 HSMMC1 supports only 4-bit */ if (cpu_is_omap3630() && c->wires > 4) { @@ -235,9 +248,11 @@ void __init omap2_hsmmc_init(struct omap2_hsmmc_info *controllers) c->wires = 4; /* FALLTHROUGH */ case 3: - /* off-chip level shifting, or none */ - mmc->slots[0].before_set_reg = hsmmc23_before_set_reg; - mmc->slots[0].after_set_reg = NULL; + if (mmc->slots[0].features & HSMMC_HAS_PBIAS) { + /* off-chip level shifting, or none */ + mmc->slots[0].before_set_reg = hsmmc23_before_set_reg; + mmc->slots[0].after_set_reg = NULL; + } break; default: pr_err("MMC%d configuration not supported!\n", c->mmc); diff --git a/arch/arm/plat-omap/include/plat/mmc.h b/arch/arm/plat-omap/include/plat/mmc.h index a1bac07c89eb..c835f1e994c6 100644 --- a/arch/arm/plat-omap/include/plat/mmc.h +++ b/arch/arm/plat-omap/include/plat/mmc.h @@ -102,6 +102,10 @@ struct omap_mmc_platform_data { /* Regulator off remapped to sleep */ unsigned vcc_aux_disable_is_sleep:1; + /* we can put the features above into this variable */ +#define HSMMC_HAS_PBIAS (1 << 0) + unsigned features; + int switch_pin; /* gpio (card detect) */ int gpio_wp; /* gpio (write protect) */ |