On Wed, 07 Mar 2007 13:57:58 +0800 "Wu, Bryan" <[EMAIL PROTECTED]> wrote:
> Here is the updated blackfin i2c driver.
>
> [PATCH] Blackfin: blackfin i2c driver
>
> The i2c linux driver for blackfin architecture which supports both GPIO
> i2c operation and blackfin on-chip TWI controller i2c operation.
>
> Signed-off-by: Bryan Wu <[EMAIL PROTECTED]>
> ---
> drivers/i2c/busses/Kconfig | 47 ++++
> drivers/i2c/busses/i2c-bfin-gpio.c | 98 +++++++++
> drivers/i2c/busses/i2c-bfin-twi.c | 589
> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> 3 files changed, 734 insertions(+)
>
> Index: linux-2.6/drivers/i2c/busses/Kconfig
> ===================================================================
> --- linux-2.6.orig/drivers/i2c/busses/Kconfig 2007-03-07 13:32:02.000000000
> +0800
> +++ linux-2.6/drivers/i2c/busses/Kconfig 2007-03-07 13:44:19.000000000
> +0800
> @@ -5,6 +5,53 @@
> menu "I2C Hardware Bus support"
> depends on I2C
>
> +config I2C_BFIN_GPIO
> + tristate "Generic Blackfin and HHBF533/561 development board I2C
> support"
> + depends on I2C && EXPERIMENTAL
> + select I2C_ALGOBIT
> + help
> + --
> +
> +menu "BFIN I2C SDA/SCL Selection"
> + depends on I2C_BFIN_GPIO
> +config BFIN_SDA
> + int "SDA is GPIO Number"
> + range 0 15 if (BF533 || BF532 || BF531)
> + range 0 47 if (BF534 || BF536 || BF537)
> + range 0 47 if BF561
> + default 2 if (BF533 || BF532 || BF531)
> +
> +config BFIN_SCL
> + int "SCL is GPIO Number"
> + range 0 15 if (BF533 || BF532 || BF531)
> + range 0 47 if (BF534 || BF536 || BF537)
> + range 0 47 if BF561
> + default 3
> +endmenu
> +
> +config I2C_BFIN_GPIO_CYCLE_DELAY
> + int "Cycle Delay in usec"
> + depends on I2C_BFIN_GPIO
> + range 1 100
> + default 40
> +
> +config I2C_BFIN_TWI
> + tristate "Blackfin TWI I2C support"
> + depends on I2C && (BF534 || BF536 || BF537)
> + help
> + This the TWI I2C device driver for Blackfin 534/536/537.
> +
> + This driver can also be built as a module. If so, the module
> + will be called i2c-bfin-twi.
> +
> +config TWICLK_KHZ
> + int "TWI clock (kHZ)"
> + depends on I2C_BFIN_TWI
> + default 50
> + help
> + The unit of the TWI clock is kilo HZ. Please divide the clock
> + by 1024 if you count it in HZ. The value should be less than 400.
> +
Well that's cute. This patch causes an i386 `make allmodconfig' to spew
these:
SDA is GPIO Number (BFIN_SDA) [] (NEW)
SDA is GPIO Number (BFIN_SDA) [] (NEW)
SDA is GPIO Number (BFIN_SDA) [] (NEW)
SDA is GPIO Number (BFIN_SDA) [] (NEW)
SDA is GPIO Number (BFIN_SDA) [] (NEW)
SDA is GPIO Number (BFIN_SDA) [] (NEW)
SDA is GPIO Number (BFIN_SDA) [] (NEW)
SDA is GPIO Number (BFIN_SDA) [] (NEW)
SDA is GPIO Number (BFIN_SDA) [] (NEW)
SDA is GPIO Number (BFIN_SDA) [] (NEW)
SDA is GPIO Number (BFIN_SDA) [] (NEW)
SDA is GPIO Number (BFIN_SDA) [] (NEW)
SDA is GPIO Number (BFIN_SDA) [] (NEW)
SDA is GPIO Number (BFIN_SDA) [] (NEW)
SDA is GPIO Number (BFIN_SDA) [] (NEW)
SDA is GPIO Number (BFIN_SDA) [] (NEW)
SDA is GPIO Number (BFIN_SDA) [] (NEW)
SDA is GPIO Number (BFIN_SDA) [] (NEW)
SDA is GPIO Number (BFIN_SDA) [] (NEW)
SDA is GPIO Number (BFIN_SDA) [] (NEW)
SDA is GPIO Number (BFIN_SDA) [] (NEW)
SDA is GPIO Number (BFIN_SDA) [] (NEW)
SDA is GPIO Number (BFIN_SDA) [] (NEW)
SDA is GPIO Number (BFIN_SDA) [] (NEW)
SDA is GPIO Number (BFIN_SDA) [] (NEW)
SDA is GPIO Number (BFIN_SDA) [] (NEW)
SDA is GPIO Number (BFIN_SDA) [] (NEW)
out at about 1,000,000/sec, infinitely.
I'll put a `depends on BFIN' in there to shut it up, but I think you've
tickled a Kconfig bug.
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