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ARM: imx7d: correct chip version information

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The commond 'cat /sys/devices/soc0/revision' can
show correct soc version information.

"unknow revision" message in imx_print_silicon_rev()
will never work for digprog.

Signed-off-by: Frank Li <Frank.Li@freescale.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
This commit is contained in:
Frank Li 2016-01-05 11:17:17 -06:00 committed by Shawn Guo
parent 608f4f7e4e
commit e914ecebf1
1 changed files with 8 additions and 1 deletions
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9
arch/arm/mach-imx/anatop.c
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@ -151,7 +151,14 @@ void __init imx_init_revision_from_anatop(void)
revision = IMX_CHIP_REVISION_1_5;
break;
default:
revision = IMX_CHIP_REVISION_UNKNOWN;
/*
* Fail back to return raw register value instead of 0xff.
* It will be easy to know version information in SOC if it
* can't be recognized by known version. And some chip's (i.MX7D)
* digprog value match linux version format, so it needn't map
* again and we can use register value directly.
*/
revision = digprog & 0xff;
}
mxc_set_cpu_type(digprog >> 16 & 0xff);