[PATCH] ARM i.MX6: set imx6 silicon revision

[Sascha Hauer]

Hi Silvio,

On Tue, May 14, 2013 at 05:52:01PM +0000, Fricke, Silvio wrote:
>  static int imx6_init(void)
>  {
> +       u32 rev;
> +       u32 mx6_silicon_revision;
> +
>         imx6_boot_save_loc((void *)MX6_SRC_BASE_ADDR);
> 
>         add_generic_device("imx-iomuxv3", 0, NULL, MX6_IOMUXC_BASE_ADDR, 0x1000, IORESOURCE_MEM, NULL);
> @@ -70,6 +76,26 @@ static int imx6_init(void)
>         add_generic_device("imx21-wdt", 0, NULL, MX6_WDOG1_BASE_ADDR, 0x4000, IORESOURCE_MEM, NULL);
>         add_generic_device("imx6-usb-misc", 0, NULL, MX6_USBOH3_USB_BASE_ADDR + 0x800, 0x100, IORESOURCE_MEM, NULL);
> 
> +       rev = readl(MX6_ANATOP_BASE_ADDR + SI_REV);
> +       switch (rev & 0xff) {
> +       case 0x00:
> +               mx6_silicon_revision = IMX_CHIP_REV_1_0;
> +               break;
> +
> +       case 0x01:
> +               mx6_silicon_revision = IMX_CHIP_REV_1_1;
> +               break;
> +
> +       case 0x02:
> +               mx6_silicon_revision = IMX_CHIP_REV_1_2;
> +               break;
> +
> +       default:
> +               mx6_silicon_revision = IMX_CHIP_REV_UNKNOWN;
> +       }
> +
> +       imx_set_silicon_revision("i.MX6", mx6_silicon_revision);

You should call imx_set_silicon_revision before registering all the
devices. That way the drivers could use this information should they
ever have to.

Sascha

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