On Thursday, March 18, 2010 10:00 AM, Mika Westerberg wrote:
> Added a new function: ep93xx_chip_revision() which reads chip revision from
> the
> sysconfig register.
>
> Signed-off-by: Mika Westerberg <mika.westerb...@iki.fi>
Hello Mika,
I'm ok with this part of your patch series.
Acked-by: H Hartley Sweeten <hswee...@visionengravers.com>
> ---
> arch/arm/mach-ep93xx/core.c | 14 ++++++++++++++
> arch/arm/mach-ep93xx/include/mach/platform.h | 8 ++++++++
> 2 files changed, 22 insertions(+), 0 deletions(-)
>
> diff --git a/arch/arm/mach-ep93xx/core.c b/arch/arm/mach-ep93xx/core.c
> index 90fb591..07572bb 100644
> --- a/arch/arm/mach-ep93xx/core.c
> +++ b/arch/arm/mach-ep93xx/core.c
> @@ -222,6 +222,20 @@ void ep93xx_devcfg_set_clear(unsigned int set_bits,
> unsigned int clear_bits)
> }
> EXPORT_SYMBOL(ep93xx_devcfg_set_clear);
>
> +/**
> + * ep93xx_chip_revision() - returns the EP93xx chip revision
> + *
> + * See <mach/platform.h> for more information.
> + */
> +unsigned int ep93xx_chip_revision(void)
> +{
> + unsigned int v;
> +
> + v = __raw_readl(EP93XX_SYSCON_SYSCFG);
> + v &= EP93XX_SYSCON_SYSCFG_REV_MASK;
> + v >>= EP93XX_SYSCON_SYSCFG_REV_SHIFT;
> + return v;
> +}
>
> /*************************************************************************
> * EP93xx peripheral handling
> diff --git a/arch/arm/mach-ep93xx/include/mach/platform.h
> b/arch/arm/mach-ep93xx/include/mach/platform.h
> index c6dc14d..b663390 100644
> --- a/arch/arm/mach-ep93xx/include/mach/platform.h
> +++ b/arch/arm/mach-ep93xx/include/mach/platform.h
> @@ -33,6 +33,14 @@ static inline void ep93xx_devcfg_clear_bits(unsigned int
> bits)
> ep93xx_devcfg_set_clear(0x00, bits);
> }
>
> +#define EP93XX_CHIP_REV_D0 3
> +#define EP93XX_CHIP_REV_D1 4
> +#define EP93XX_CHIP_REV_E0 5
> +#define EP93XX_CHIP_REV_E1 6
> +#define EP93XX_CHIP_REV_E2 7
> +
> +unsigned int ep93xx_chip_revision(void);
> +
> void ep93xx_register_eth(struct ep93xx_eth_data *data, int copy_addr);
> void ep93xx_register_i2c(struct i2c_gpio_platform_data *data,
> struct i2c_board_info *devices, int num);
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