Dear Otavio Salvador,
> The information now is gathered from HW_DIGCTL_CHIPID register and
> includes the revision of the chip on the output.
>
> Signed-off-by: Otavio Salvador <ota...@ossystems.com.br>
> Cc: Marek Vasut <ma...@denx.de>
> Cc: Stefano Babic <sba...@denx.de>
> Cc: Fabio Estevam <fabio.este...@freescale.com>
> ---
> arch/arm/cpu/arm926ejs/mx28/mx28.c | 29 +++++++++++++++++++++++++++--
> 1 file changed, 27 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm/cpu/arm926ejs/mx28/mx28.c
> b/arch/arm/cpu/arm926ejs/mx28/mx28.c index a82ff25..ac2f2e0 100644
> --- a/arch/arm/cpu/arm926ejs/mx28/mx28.c
> +++ b/arch/arm/cpu/arm926ejs/mx28/mx28.c
> @@ -190,13 +190,38 @@ int arch_cpu_init(void)
> #endif
>
> #if defined(CONFIG_DISPLAY_CPUINFO)
> +static const char *get_cpu_type(void)
> +{
> + struct mx28_digctl_regs *digctl_regs =
> + (struct mx28_digctl_regs *)MXS_DIGCTL_BASE;
> +
> + switch (readl(&digctl_regs->hw_digctl_chipid) >> 16) {
#define that >> 16 ... maybe offset? I'd define a mask though, see below.
#define PRODUCT_CODE_MASK (0xffff << 16)
> + case 0x2800:
#define this as something ... #define PRODUCT_CODE_MX28 (0x2800 << 16)
> + return "28";
> + case 0x3728:
> + return "23";
> + default:
> + return "<unidentified>";
So X-Files-ish ;-)
> + }
> +}
> +
> +static u8 get_cpu_rev(void)
uint8_t ... maybe? it's used throughout the code, so let's keep consistent.
> +{
> + struct mx28_digctl_regs *digctl_regs =
> + (struct mx28_digctl_regs *)MXS_DIGCTL_BASE;
> +
> + return readl(&digctl_regs->hw_digctl_chipid) & 0x0000F;
> +}
> +
> int print_cpuinfo(void)
> {
> struct mx28_spl_data *data = (struct mx28_spl_data *)
> ((CONFIG_SYS_TEXT_BASE - sizeof(struct mx28_spl_data)) & ~0xf);
>
> - printf("Freescale i.MX28 family at %d MHz\n",
> - mxc_get_clock(MXC_ARM_CLK) / 1000000);
> + printf("CPU: Freescale i.MX%s rev%d at %d MHz\n",
> + get_cpu_type(),
> + get_cpu_rev(),
> + mxc_get_clock(MXC_ARM_CLK) / 1000000);
> printf("BOOT: %s\n", mx28_boot_modes[data->boot_mode_idx].mode);
> return 0;
> }
Best regards,
Marek Vasut
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