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arm64: zynqmp: Add comment about level shifter mode v1

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Silicon v1 didn't support SD boot mode with level shifter.
Because system can't boot any error message is not shown
that's why comment is just a record if someone tries to debug it.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
This commit is contained in:
Michal Simek 2017-03-02 11:02:55 +01:00
parent 1ac237b66b
commit b0259c840e
1 changed files with 1 additions and 1 deletions
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2
arch/arm/cpu/armv8/zynqmp/spl.c
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@ -84,7 +84,7 @@ u32 spl_boot_device(void)
return BOOT_DEVICE_RAM;
#ifdef CONFIG_SPL_MMC_SUPPORT
case SD_MODE1:
case SD1_LSHFT_MODE:
case SD1_LSHFT_MODE: /* not working on silicon v1 */
/* if both controllers enabled, then these two are the second controller */
#if defined(CONFIG_ZYNQ_SDHCI0) && defined(CONFIG_ZYNQ_SDHCI1)
return BOOT_DEVICE_MMC2;