[U-Boot] [PATCH] imx: mx27 implement get_cpu_rev
Stefano Babic
sbabic at denx.de
Wed Aug 12 17:50:36 CEST 2015
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 !
Best regards,
Stefano Babic
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