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ARM: OMAP5/DRA7: Enable iodelay recalibration to be done from uboot

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Add a new API to perform iodelay recalibration without isolate
io to be used in uboot.

The data manual of J6/J6 Eco recommends to set different IODELAY values
depending on the mode in which the MMC/SD is enumerated in order to
ensure IO timings are met. The MMC driver can use the new API to
set the IO delay values depending on the MMC mode.

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 16:01:39 +01:00
committed by Jaehoon Chung
parent 2d7482cf79
commit 6a27333ba3
4 changed files with 33 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
include/configs/am57xx_evm.h
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@@ -15,9 +15,7 @@
#include <environment/ti/dfu.h>
#include <linux/sizes.h>
#ifdef CONFIG_SPL_BUILD
#define CONFIG_IODELAY_RECALIBRATION
#endif
#define CONFIG_NR_DRAM_BANKS 2

2
include/configs/dra7xx_evm.h
View File

@@ -14,9 +14,7 @@
#include <environment/ti/dfu.h>
#ifdef CONFIG_SPL_BUILD
#define CONFIG_IODELAY_RECALIBRATION
#endif
#define CONFIG_VERY_BIG_RAM
#define CONFIG_NR_DRAM_BANKS 2