This switches the U300 over from using a custom translate_vdd
function (which was just flipping blind bits in the hardware)
to using the regulator that actually controls the MMC voltage.
Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxxxxxx>
---
arch/arm/mach-u300/mmc.c | 64 +++-------------------------------------------
1 files changed, 4 insertions(+), 60 deletions(-)
diff --git a/arch/arm/mach-u300/mmc.c b/arch/arm/mach-u300/mmc.c
index 70f0ca5..cedc74c 100644
--- a/arch/arm/mach-u300/mmc.c
+++ b/arch/arm/mach-u300/mmc.c
@@ -40,64 +40,6 @@ static unsigned int mmc_status(struct device *dev)
return mmci_card->mmc_inserted;
}
-/*
- * Here follows a large chunk of code which will only be enabled if you
- * have both the AB3100 chip mounted and the MMC subsystem activated.
- */
-
-static u32 mmc_translate_vdd(struct device *dev, unsigned int voltage)
-{
- int v;
-
- /*
- * MMC Spec:
- * bit 7: 1.70 - 1.95V
- * bit 8 - 14: 2.0 - 2.6V
- * bit 15 - 23: 2.7 - 3.6V
- *
- * ab3100 voltages:
- * 000 - 2.85V
- * 001 - 2.75V
- * 010 - 1.8V
- * 011 - 1.5V
- */
- switch (voltage) {
- case 8:
- v = 3;
- break;
- case 9:
- case 10:
- case 11:
- case 12:
- case 13:
- case 14:
- case 15:
- v = 1;
- break;
- case 16:
- v = 1;
- break;
- case 17:
- case 18:
- case 19:
- case 20:
- case 21:
- case 22:
- case 23:
- case 24:
- v = 0;
- break;
- default:
- v = 0;
- break;
- }
-
- /* PL180 voltage register bits */
- return v << 2;
-}
-
-
-
static int mmci_callback(void *data)
{
struct mmci_card_event *mmci_card = data;
@@ -154,9 +96,11 @@ int __devinit mmc_init(struct amba_device *adev)
if (!mmci_card)
return -ENOMEM;
+ /*
+ * Do not set ocr_mask or voltage translation function,
+ * we have a regulator we can control instead.
+ */
/* Nominally 2.85V on our platform */
- mmci_card->mmc0_plat_data.ocr_mask = MMC_VDD_28_29;
- mmci_card->mmc0_plat_data.translate_vdd = mmc_translate_vdd;
mmci_card->mmc0_plat_data.status = mmc_status;
mmci_card->mmc0_plat_data.gpio_wp = -1;
mmci_card->mmc0_plat_data.gpio_cd = -1;
--
1.6.2.1
--
To unsubscribe from this list: send the line "unsubscribe linux-mmc" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
