[U-Boot] [PATCH] imx: mx27 implement get_cpu_rev
Peng Fan
b51431 at freescale.com
Thu Aug 13 02:24:21 CEST 2015
Hi Stefano,
On Wed, Aug 12, 2015 at 05:50:36PM +0200, Stefano Babic wrote:
>On 12/08/2015 11:40, Peng Fan wrote:
>> Write a function named get_cpu_rev to make it support
>> runtime checking using "is_cpu_type(MXC_CPU_xx)".
>>
>> Also introduce a macro MXC_CPU_MX27 with value 0x27.
>>
>> Signed-off-by: Peng Fan <Peng.Fan at freescale.com>
>> Cc: Stefano Babic <sbabic at denx.de>
>> ---
>>
>> Note:
>> Based on https://patchwork.ozlabs.org/patch/505618/ to support runtime
>> check patch.
>>
>> arch/arm/cpu/arm926ejs/mx27/generic.c | 6 ++++++
>> arch/arm/include/asm/arch-imx/cpu.h | 1 +
>> 2 files changed, 7 insertions(+)
>>
>> diff --git a/arch/arm/cpu/arm926ejs/mx27/generic.c b/arch/arm/cpu/arm926ejs/mx27/generic.c
>> index 5ee9f07..b713c84 100644
>> --- a/arch/arm/cpu/arm926ejs/mx27/generic.c
>> +++ b/arch/arm/cpu/arm926ejs/mx27/generic.c
>> @@ -12,6 +12,7 @@
>> #include <asm/arch/imx-regs.h>
>> #include <asm/arch/clock.h>
>> #include <asm/arch/gpio.h>
>> +#include <asm/imx-common/sys_proto.h>
>> #ifdef CONFIG_MXC_MMC
>> #include <asm/arch/mxcmmc.h>
>> #endif
>> @@ -159,6 +160,11 @@ unsigned int mxc_get_clock(enum mxc_clock clk)
>> }
>>
>>
>> +u32 get_cpu_rev(void)
>> +{
>> + return MXC_CPU_MX27 << 12;
>> +}
>> +
>> #if defined(CONFIG_DISPLAY_CPUINFO)
>> int print_cpuinfo (void)
>> {
>> diff --git a/arch/arm/include/asm/arch-imx/cpu.h b/arch/arm/include/asm/arch-imx/cpu.h
>> index 71208aa..be13b96 100644
>> --- a/arch/arm/include/asm/arch-imx/cpu.h
>> +++ b/arch/arm/include/asm/arch-imx/cpu.h
>> @@ -6,6 +6,7 @@
>>
>> #define MXC_CPU_MX23 0x23
>> #define MXC_CPU_MX25 0x25
>> +#define MXC_CPU_MX27 0x27
>> #define MXC_CPU_MX28 0x28
>> #define MXC_CPU_MX31 0x31
>> #define MXC_CPU_MX35 0x35
>>
>
>Reviewed-by: Stefano Babic <sbabic at denx.de>
>
>Peng, because a repost for your MX2/MX3 series is needed, can you add
>this one to that series ? Thanks !
Ok. I'll repost this one to that series.
Regards,
Peng.
>
>Best regards,
>Stefano Babic
>
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