On Tue, 13 Jan 2015 07:26:12 +0100 Jean-Christophe PLAGNIOL-VILLARD <[email protected]> wrote:
I have planned to switch raspberry pi to device tree support as Linux does. IMHO POWER LED is not GPIO controlable, please see these schematics http://www.raspberrypi.org/wp-content/uploads/2012/04/Raspberry-Pi-Schematics-R1.0.pdf http://www.raspberrypi.org/documentation/hardware/raspberrypi/schematics/Raspberry-Pi-B-Plus-V1.2-Schematics.pdf > Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <[email protected]> > --- > arch/arm/boards/raspberry-pi/rpi.c | 55 > ++++++++++++++++++++++++++++++++++++++ > 1 file changed, 55 insertions(+) > > diff --git a/arch/arm/boards/raspberry-pi/rpi.c > b/arch/arm/boards/raspberry-pi/rpi.c > index ae1e92a..7d866cc 100644 > --- a/arch/arm/boards/raspberry-pi/rpi.c > +++ b/arch/arm/boards/raspberry-pi/rpi.c > @@ -21,6 +21,8 @@ > #include <linux/clkdev.h> > #include <envfs.h> > #include <malloc.h> > +#include <gpio.h> > +#include <led.h> > #include <asm/armlinux.h> > #include <generated/mach-types.h> > > @@ -87,6 +89,49 @@ static int rpi_register_clkdev(u32 clock_id, const char > *name) > } > > > +static struct gpio_led leds[] = { > + { > + .gpio = -EINVAL, > + .led = { > + .name = "ACT", > + }, > + }, { > + .gpio = -EINVAL, > + .led = { > + .name = "PWR", > + }, > + }, > +}; > + > +static void rpi_add_led(void) > +{ > + int i; > + struct gpio_led *l; > + > + for (i = 0; i < ARRAY_SIZE(leds); i++) { > + l = &leds[i]; > + > + if (gpio_is_valid(l->gpio)) > + led_gpio_register(l); > + } > + > + l = &leds[0]; > + if (gpio_is_valid(l->gpio)) > + led_set_trigger(LED_TRIGGER_HEARTBEAT, &l->led); > +} > + > +static void rpi_b_plus_init(void) > +{ > + leds[0].gpio = 47; > + leds[1].gpio = 35; > +} > + > +static void rpi_b_init(void) > +{ > + leds[0].gpio = 16; > + leds[0].active_low = 1; > +} > + > #define RPI_MODEL(_id, _name, _init) \ > [_id] = { \ > .name = _name,\ > @@ -160,6 +205,15 @@ unknown_rev: > barebox_set_model("RaspberryPi (BCM2835/ARM1176JZF-S)"); > } > > +static void rpi_model_init(void) > +{ > + rpi_set_usbethaddr(); > + if (models[rpi_board_rev].init) { > + models[rpi_board_rev].init(); > + rpi_add_led(); > + } > +} > + > static int rpi_mem_init(void) > { > u32 size = 0; > @@ -220,6 +274,7 @@ static int rpi_env_init(void) > > static int rpi_devices_init(void) > { > + rpi_model_init(); > bcm2835_register_mci(); > bcm2835_register_fb(); > armlinux_set_architecture(MACH_TYPE_BCM2708); > -- > 2.1.3 > > > _______________________________________________ > barebox mailing list > [email protected] > http://lists.infradead.org/mailman/listinfo/barebox -- -- Best regards, Antony Pavlov _______________________________________________ barebox mailing list [email protected] http://lists.infradead.org/mailman/listinfo/barebox
