Difference between revisions of "Hammer Uart2 Configuration"
From eLinux.org
| Line 1: | Line 1: | ||
| − | The default configuration for the GPH6 and GPH7 pins on the s3c2410 are as GPIO inputs. To configure these pins for usage as a second uart add the following | + | The default configuration for the GPH6 and GPH7 pins on the s3c2410 are as GPIO inputs. To configure these pins for usage as a second uart add the following commented section to the arch/arm/mach-s3c2410/mach-tct_hammer.c in the linux source tree, future versions of the Hammer kernel source will include this entry: |
<pre> | <pre> | ||
static void __init tct_hammer_init(void) | static void __init tct_hammer_init(void) | ||
Revision as of 17:27, 16 June 2008
The default configuration for the GPH6 and GPH7 pins on the s3c2410 are as GPIO inputs. To configure these pins for usage as a second uart add the following commented section to the arch/arm/mach-s3c2410/mach-tct_hammer.c in the linux source tree, future versions of the Hammer kernel source will include this entry:
static void __init tct_hammer_init(void)
{
s3c2410_gpio_cfgpin(S3C2410_GPF0, S3C2410_GPIO_OUTPUT);
s3c2410_gpio_setpin(S3C2410_GPF0, 1);
s3c2410_gpio_cfgpin(S3C2410_GPC12, S3C2410_GPIO_OUTPUT);
s3c2410_gpio_setpin(S3C2410_GPC12, 1);
/*uncomment these these to enable the second serial port */
/*
s3c2410_gpio_cfgpin(S3C2410_GPH6, S3C2410_GPH6_TXD2);
s3c2410_gpio_pullup(S3C2410_GPH6, 1);
s3c2410_gpio_cfgpin(S3C2410_GPH7, S3C2410_GPH7_RXD2);
s3c2410_gpio_pullup(S3C2410_GPH7, 1);
*/
#ifdef CONFIG_FB_S3C2410
s3c24xx_fb_set_platdata(&tct_hammer_lcd_info);
#endif
platform_add_devices(tct_hammer_devices, ARRAY_SIZE(tct_hammer_devices));
}
after recompiling the kernel and loading it onto the Hammer, the port will be accessable via /dev/ttySAC2.
