leandrof/u-boot
1
0
Fork 1
Code Issues Pull Requests Packages Projects Releases Wiki Activity

mmc: omap_hsmmc: add support to set default io voltage

Browse Source 
"ti,dual-volt" is used in linux kernel to set the voltage capabilities.
For host controller dt nodes that doesn't have "ti,dual-volt",
it's assumed 1.8v is the io voltage. This is not always true (like in
the case of beagle-x15 where the io lines are connected to 3.3v).
Hence if "no-1-8-v" property is set, io voltage will be set to 3v.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
This commit is contained in:
Kishon Vijay Abraham I
2018-01-30 16:01:32 +01:00
committed by Jaehoon Chung
parent 48a2f11443
commit b594481709
2 changed files with 77 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
arch/arm/include/asm/omap_mmc.h
View File

@@ -65,6 +65,7 @@ struct omap_hsmmc_plat {
struct hsmmc *base_addr;
struct mmc mmc;
bool cd_inverted;
u32 controller_flags;
};
/*
@@ -124,8 +125,10 @@ struct omap_hsmmc_plat {
#define DTW_8_BITMODE (0x1 << 5) /* CON[DW8]*/
#define SDBP_PWROFF (0x0 << 8)
#define SDBP_PWRON (0x1 << 8)
#define SDVS_MASK (0x7 << 9)
#define SDVS_1V8 (0x5 << 9)
#define SDVS_3V0 (0x6 << 9)
#define SDVS_3V3 (0x7 << 9)
#define DMA_SELECT (0x2 << 3)
#define ICE_MASK (0x1 << 0)
#define ICE_STOP (0x0 << 0)
@@ -159,8 +162,13 @@ struct omap_hsmmc_plat {
#define IE_CERR (0x01 << 28)
#define IE_BADA (0x01 << 29)
#define VS30_3V0SUP (1 << 25)
#define VS18_1V8SUP (1 << 26)
#define VS33_3V3SUP BIT(24)
#define VS30_3V0SUP BIT(25)
#define VS18_1V8SUP BIT(26)
#define IOV_3V3 3300000
#define IOV_3V0 3000000
#define IOV_1V8 1800000
/* Driver definitions */
#define MMCSD_SECTOR_SIZE 512