Hi, Fabio,
2011/3/11 Fabio Estevam <fabio.este...@freescale.com>:
> Use the same method of the Linux kernel to print the MX31 silicon version on
> boot.
>
> Tested on a MX31PDK with a 2.0 silicon, where it shows:
>
> CPU: Freescale i.MX31 at 531 MHz
> MX31 silicon rev 2.0
>
> Signed-off-by: Fabio Estevam <fabio.este...@freescale.com>
> ---
> arch/arm/cpu/arm1136/mx31/generic.c | 18 ++++++++++++
> arch/arm/include/asm/arch-mx31/mx31-regs.h | 4 ++
> arch/arm/include/asm/imx_soc_revision.h | 42
> ++++++++++++++++++++++++++++
> 3 files changed, 64 insertions(+), 0 deletions(-)
> create mode 100644 arch/arm/include/asm/imx_soc_revision.h
>
> diff --git a/arch/arm/cpu/arm1136/mx31/generic.c
> b/arch/arm/cpu/arm1136/mx31/generic.c
> index 8bd23ee..4791449 100644
> --- a/arch/arm/cpu/arm1136/mx31/generic.c
> +++ b/arch/arm/cpu/arm1136/mx31/generic.c
> @@ -24,6 +24,7 @@
> #include <common.h>
> #include <asm/arch/mx31-regs.h>
> #include <asm/io.h>
> +#include <asm/imx_soc_revision.h>
>
> static u32 mx31_decode_pll(u32 reg, u32 infreq)
> {
> @@ -106,11 +107,28 @@ void mx31_set_pad(enum iomux_pins pin, u32 config)
>
> }
>
> +void mx31_read_cpu_rev(void)
> +{
> + u32 i, srev;
> +
> + /* read SREV register from IIM module */
> + srev = __raw_readl(MX31_IIM_BASE_ADDR + MXC_IIMSREV);
Need use struct way to access srev.
[code snip]
> 1.6.0.4
>
>
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