From: H Hartley Sweeten <hartleys-3FF4nKcrg1dE2c76skzGb0EOCMrvLtNR@public.gmane.org>
To: Mika Westerberg <mika.westerberg-X3B1VOXEql0@public.gmane.org>,
"spi-devel-general-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org"
<spi-devel-general-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org>
Cc: "linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org"
<linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org>
Subject: Re: [PATCH v2 2/3] ep93xx: added chip revision reading function
Date: Thu, 18 Mar 2010 12:27:15 -0500 [thread overview]
Message-ID: <0D753D10438DA54287A00B02708426976368AC725D@AUSP01VMBX24.collaborationhost.net> (raw)
In-Reply-To: <c222c3df9c94d9ec919817f640a953e4f45ae99b.1268930557.git.mika.westerberg-X3B1VOXEql0@public.gmane.org>
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.westerberg-X3B1VOXEql0@public.gmane.org>
Hello Mika,
I'm ok with this part of your patch series.
Acked-by: H Hartley Sweeten <hsweeten-3FF4nKcrg1dE2c76skzGb0EOCMrvLtNR@public.gmane.org>
> ---
> 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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next prev parent reply other threads:[~2010-03-18 17:27 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-18 16:59 [PATCH v2 0/3] spi: driver for Cirrus EP93xx SPI controller Mika Westerberg
[not found] ` <cover.1268930557.git.mika.westerberg-X3B1VOXEql0@public.gmane.org>
2010-03-18 17:00 ` [PATCH v2 1/3] spi: implemented " Mika Westerberg
[not found] ` <c222c3df9c94d9ec919817f640a953e4f45ae99b.1268930557.git.mika.westerberg-X3B1VOXEql0@public.gmane.org>
2010-03-18 17:00 ` [PATCH v2 3/3] ep93xx: SPI driver platform support code Mika Westerberg
2010-03-18 17:27 ` H Hartley Sweeten [this message]
[not found] ` <0D753D10438DA54287A00B02708426976368AC725D-gaq956PjLg32KbjnnMDalRurcAul1UnsRrxOEX5GOmysTnJN9+BGXg@public.gmane.org>
2010-03-25 9:06 ` [PATCH v2 2/3] ep93xx: added chip revision reading function Mika Westerberg
[not found] ` <20100325090638.GA20512-WfG2TfFPcQ9S6P4I59wummXnswh1EIUO@public.gmane.org>
2010-03-25 17:20 ` H Hartley Sweeten
[not found] ` <0D753D10438DA54287A00B02708426976368F66FD1-gaq956PjLg32KbjnnMDalRurcAul1UnsRrxOEX5GOmysTnJN9+BGXg@public.gmane.org>
2010-03-26 15:40 ` Martin Guy
[not found] ` <9de3769ae253830fb0eebc98d299137c59c69b8c.1268930557.git.mika.westerberg-X3B1VOXEql0@public.gmane.org>
2010-03-18 17:00 ` Mika Westerberg
2010-03-25 13:49 ` [PATCH v2 1/3] spi: implemented driver for Cirrus EP93xx SPI controller Martin Guy
[not found] ` <56d259a01003250649ubf0e32ejc15e4f3b45ec43cd-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2010-03-25 18:43 ` Mika Westerberg
[not found] ` <20100325184316.GB20512-WfG2TfFPcQ9S6P4I59wummXnswh1EIUO@public.gmane.org>
2010-04-01 0:15 ` Martin Guy
[not found] ` <s2n56d259a01003311715ke5b93a96v9d453ec32f08ec29-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2010-04-01 3:00 ` Ryan Mallon
2010-04-01 6:26 ` Mika Westerberg
2010-04-06 5:44 ` Mika Westerberg
[not found] ` <20100406054418.GA27465-WfG2TfFPcQ9S6P4I59wummXnswh1EIUO@public.gmane.org>
2010-04-06 12:50 ` Martin Guy
[not found] ` <s2g56d259a01004060550me72bd64cr35e4a83c495d6909-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2010-04-06 18:18 ` Mika Westerberg
[not found] ` <20100406181839.GA2685-WfG2TfFPcQ9S6P4I59wummXnswh1EIUO@public.gmane.org>
2010-04-06 21:28 ` Martin Guy
[not found] ` <x2r56d259a01004061428raffb32e9o1d42570c79c0ee56-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2010-04-09 17:56 ` Martin Guy
[not found] ` <l2j56d259a01004091056i91598adub4201b47c4a86a90-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2010-04-09 18:08 ` Martin Guy
2010-04-10 15:54 ` Mika Westerberg
[not found] ` <20100410155443.GG2685-WfG2TfFPcQ9S6P4I59wummXnswh1EIUO@public.gmane.org>
2010-04-11 14:24 ` Martin Guy
2010-04-12 10:03 ` Martin Guy
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