linux-sunxi/u-boot-sunxi
1
0
Fork 0
mirror of https://github.com/linux-sunxi/u-boot-sunxi.git synced 2024-02-12 11:16:03 +08:00
Code Issues Projects Releases Wiki Activity

mmc: omap_hsmmc: add signal voltage selection support

Browse Source 
I/O data lines of UHS SD card operates at 1.8V when in UHS speed
mode (same is true for eMMC in DDR and HS200 modes). Add support
to switch signal voltage to 1.8V in order to support
UHS cards and eMMC HS200 and DDR modes.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
This commit is contained in:
Jean-Jacques Hiblot
2018-01-30 16:01:46 +01:00
committed by Jaehoon Chung
parent 90321dce0d
commit 04f9f8be83
2 changed files with 160 additions and 26 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
arch/arm/include/asm/omap_mmc.h
View File

@ -172,10 +172,6 @@ struct omap_hsmmc_plat {
#define VS30_3V0SUP BIT(25)
#define VS18_1V8SUP BIT(26)
#define IOV_3V3 3300000
#define IOV_3V0 3000000
#define IOV_1V8 1800000
#define AC12_ET BIT(22)
#define AC12_V1V8_SIGEN BIT(19)
#define AC12_SCLK_SEL BIT(23)
@ -224,6 +220,12 @@ struct omap_hsmmc_plat {
IE_DTO | IE_CIE | IE_CEB | IE_CCRC | IE_ADMAE | IE_CTO |\
IE_BRR | IE_BWR | IE_TC | IE_CC)
#define CON_CLKEXTFREE BIT(16)
#define CON_PADEN BIT(15)
#define PSTATE_CLEV BIT(24)
#define PSTATE_DLEV (0xF << 20)
#define PSTATE_DLEV_DAT0 (0x1 << 20)
int omap_mmc_init(int dev_index, uint host_caps_mask, uint f_max, int cd_gpio,
int wp_gpio);