Title: [4065] trunk/arch/blackfin: TASK [#3478]
enable generic GPIO based I2C driver in EZKIT-BF561
- Revision
- 4065
- Author
- cooloney
- Date
- 2007-12-26 01:10:10 -0600 (Wed, 26 Dec 2007)
Log Message
TASK [#3478] enable generic GPIO based I2C driver in EZKIT-BF561
Diffstat
Kconfig | 25 +++++++++++++++++++++++++
mach-bf561/boards/ezkit.c | 24 ++++++++++++++++++++++++
2 files changed, 49 insertions(+)
Modified Paths
Diff
Modified: trunk/arch/blackfin/Kconfig (4064 => 4065)
--- trunk/arch/blackfin/Kconfig 2007-12-26 06:59:56 UTC (rev 4064)
+++ trunk/arch/blackfin/Kconfig 2007-12-26 07:10:10 UTC (rev 4065)
@@ -525,8 +525,33 @@
endchoice
+menu "Blackfin I2C GPIO SDA/SCL Selection"
+ depends on I2C_GPIO
+
+config I2C_GPIO_SDA
+ int "SDA GPIO pin number"
+ range 0 15 if (BF533 || BF532 || BF531)
+ range 0 47 if (BF534 || BF536 || BF537)
+ range 0 47 if BF561
+ default 2 if !BF561
+ default 1 if BF561
+
+config I2C_GPIO_SCL
+ int "SCL GPIO pin number"
+ range 0 15 if (BF533 || BF532 || BF531)
+ range 0 47 if (BF534 || BF536 || BF537)
+ range 0 47 if BF561
+ default 3 if !BF561
+ default 0 if BF561
+
+config I2C_GPIO_UDELAY
+ int "Cycle Delay in uSec"
+ range 5 100
+ default 40
+
endmenu
+endmenu
menu "Blackfin Kernel Optimizations"
Modified: trunk/arch/blackfin/mach-bf561/boards/ezkit.c (4064 => 4065)
--- trunk/arch/blackfin/mach-bf561/boards/ezkit.c 2007-12-26 06:59:56 UTC (rev 4064)
+++ trunk/arch/blackfin/mach-bf561/boards/ezkit.c 2007-12-26 07:10:10 UTC (rev 4065)
@@ -270,6 +270,26 @@
};
#endif
+#if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
+#include <linux/i2c-gpio.h>
+
+static struct i2c_gpio_platform_data i2c_gpio_data = {
+ .sda_pin = CONFIG_I2C_GPIO_SDA,
+ .scl_pin = CONFIG_I2C_GPIO_SCL,
+ .sda_is_open_drain = 1,
+ .scl_is_open_drain = 1,
+ .udelay = CONFIG_I2C_GPIO_UDELAY,
+};
+
+static struct platform_device i2c_gpio_device = {
+ .name = "i2c-gpio",
+ .id = 0,
+ .dev = {
+ .platform_data = &i2c_gpio_data,
+ },
+};
+#endif
+
static struct platform_device *ezkit_devices[] __initdata = {
#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
&smc91x_device,
@@ -294,6 +314,10 @@
#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
&bfin_device_gpiokeys,
#endif
+
+#if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
+ &i2c_gpio_device,
+#endif
};
static int __init ezkit_init(void)
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