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sunxi: add support for UART2 on A23/A33

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Add support for UART2 (2-pin version but note that RTS/CTS pins are available
pn that port for possible future use), can be selected in config
by using CONFIG_CONS_INDEX=3

Signed-off-by: Laurent Itti <laurentitti@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
This commit is contained in:
Laurent Itti 2015-05-05 17:02:00 -07:00 committed by Hans de Goede
parent a8552c7c9b
commit 5cd83b11f9
3 changed files with 7 additions and 0 deletions
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4
arch/arm/cpu/armv7/sunxi/board.c
View File

@ -68,6 +68,10 @@ static int gpio_init(void)
sunxi_gpio_set_cfgpin(SUNXI_GPG(3), SUN5I_GPG_UART1);
sunxi_gpio_set_cfgpin(SUNXI_GPG(4), SUN5I_GPG_UART1);
sunxi_gpio_set_pull(SUNXI_GPG(4), SUNXI_GPIO_PULL_UP);
#elif CONFIG_CONS_INDEX == 3 && defined(CONFIG_MACH_SUN8I)
sunxi_gpio_set_cfgpin(SUNXI_GPB(0), SUN8I_GPB_UART2);
sunxi_gpio_set_cfgpin(SUNXI_GPB(1), SUN8I_GPB_UART2);
sunxi_gpio_set_pull(SUNXI_GPB(1), SUNXI_GPIO_PULL_UP);
#elif CONFIG_CONS_INDEX == 5 && defined(CONFIG_MACH_SUN8I)
sunxi_gpio_set_cfgpin(SUNXI_GPL(2), SUN8I_GPL_R_UART);
sunxi_gpio_set_cfgpin(SUNXI_GPL(3), SUN8I_GPL_R_UART);

1
arch/arm/include/asm/arch-sunxi/gpio.h
View File

@ -155,6 +155,7 @@ enum sunxi_gpio_number {
#define SUN5I_GPB_TWI2 2
#define SUN4I_GPB_UART0 2
#define SUN5I_GPB_UART0 2
#define SUN8I_GPB_UART2 2
#define SUNXI_GPC_SDC2 3
#define SUN6I_GPC_SDC3 4

2
include/configs/sunxi-common.h
View File

@ -241,6 +241,8 @@ extern int soft_i2c_gpio_scl;
#endif
#elif CONFIG_CONS_INDEX == 2 && defined(CONFIG_MACH_SUN5I)
#define OF_STDOUT_PATH "/soc@01c00000/serial@01c28400:115200"
#elif CONFIG_CONS_INDEX == 3 && defined(CONFIG_MACH_SUN8I)
#define OF_STDOUT_PATH "/soc@01c00000/serial@01c28800:115200"
#elif CONFIG_CONS_INDEX == 5 && defined(CONFIG_MACH_SUN8I)
#define OF_STDOUT_PATH "/soc@01c00000/serial@01f02800:115200"
#else