[PATCH 1/2] ARM: mach-imx: imx6ul: Print SOC revision on boot and set system_rev

Robert Karszniewicz r.karszniewicz at phytec.de
Tue Jan 5 05:04:51 EST 2021


On 1/5/21 2:31 AM, Shawn Guo wrote:
> On Mon, Nov 23, 2020 at 06:08:10PM +0100, Robert Karszniewicz wrote:
>> From: Stefan Riedmueller <s.riedmueller at phytec.de>
>>
>> Add the print of the CPU type and SOC revision during boot and also set
>> the system_rev variable to the SOC revision so the correct SOC revision
>> will be shown in /proc/cpuinfo.
>>
>> Signed-off-by: Stefan Riedmueller <s.riedmueller at phytec.de>
>> Signed-off-by: Robert Karszniewicz <r.karszniewicz at phytec.de>
> 
> Considering we already have /sys/devices/soc0 providing these
> information, I do not this change is really necessary.

Yes, I became aware of that, that's why I sent another patch which only 
prints
the SOC revision:
[PATCH] ARM: mach-imx: imx6ul: Print SOC revision on boot
http://lists.infradead.org/pipermail/linux-arm-kernel/2020-December/624994.html

Thanks.

> 
> Shawn
> 
>> ---
>>   arch/arm/mach-imx/mach-imx6ul.c | 6 ++++++
>>   1 file changed, 6 insertions(+)
>>
>> diff --git a/arch/arm/mach-imx/mach-imx6ul.c b/arch/arm/mach-imx/mach-imx6ul.c
>> index e018e716735f..9c92cc72b857 100644
>> --- a/arch/arm/mach-imx/mach-imx6ul.c
>> +++ b/arch/arm/mach-imx/mach-imx6ul.c
>> @@ -11,9 +11,11 @@
>>   #include <linux/regmap.h>
>>   #include <asm/mach/arch.h>
>>   #include <asm/mach/map.h>
>> +#include <asm/system_info.h>
>>   
>>   #include "common.h"
>>   #include "cpuidle.h"
>> +#include "hardware.h"
>>   
>>   static void __init imx6ul_enet_clk_init(void)
>>   {
>> @@ -55,6 +57,10 @@ static inline void imx6ul_enet_init(void)
>>   
>>   static void __init imx6ul_init_machine(void)
>>   {
>> +	system_rev = imx_get_soc_revision();
>> +	imx_print_silicon_rev(cpu_is_imx6ull() ? "i.MX6ULL" : "i.MX6UL",
>> +		system_rev);
>> +
>>   	of_platform_default_populate(NULL, NULL, NULL);
>>   	imx6ul_enet_init();
>>   	imx_anatop_init();
>> -- 
>> 2.7.4
>>




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