diff options
| author | Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org> | 2011-05-09 23:04:51 +0200 |
|---|---|---|
| committer | John Rigby <john.rigby@linaro.org> | 2011-06-28 15:57:52 +0100 |
| commit | 19f2278c9e1cba3550942492bb89c996b4b524e2 (patch) | |
| tree | 9da71a1981354e70de9f7737554b137881a09418 | |
| parent | 977cc1560eea474e2d8ed1f6fae6b294e9b30772 (diff) | |
omap4_panda: add support for EHCI
Signed-off-by: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
Signed-off-by: Ricardo Salveti de Araujo <ricardo.salveti@canonical.com>
| -rw-r--r-- | board/ti/panda/Makefile | 4 | ||||
| -rw-r--r-- | board/ti/panda/ehci-panda.c | 59 |
2 files changed, 62 insertions, 1 deletions
diff --git a/board/ti/panda/Makefile b/board/ti/panda/Makefile index 218640373..253567cc8 100644 --- a/board/ti/panda/Makefile +++ b/board/ti/panda/Makefile @@ -25,7 +25,9 @@ include $(TOPDIR)/config.mk LIB = $(obj)lib$(BOARD).o -COBJS := panda.o +COBJS-$(CONFIG_USB_EHCI) += ehci-panda.o + +COBJS := $(COBJS-y) panda.o SRCS := $(COBJS:.o=.c) OBJS := $(addprefix $(obj),$(COBJS)) diff --git a/board/ti/panda/ehci-panda.c b/board/ti/panda/ehci-panda.c new file mode 100644 index 000000000..b1e247c19 --- /dev/null +++ b/board/ti/panda/ehci-panda.c @@ -0,0 +1,59 @@ +/* + * OMAP4 EHCI port, copied from linux/drivers/usb/host/ehci-omap.c + * + * Copyright (C) 2007-2010 Texas Instruments, Inc. + * Author: Vikram Pandita <vikram.pandita@ti.com> + * Author: Anand Gadiyar <gadiyar@ti.com> + */ + +#include <asm/arch/gpio.h> +#include <asm/arch/ehci.h> + +#define GPIO_HUB_POWER 1 +#define GPIO_HUB_NRESET 62 + +int ehci_hcd_init(void) +{ + unsigned long base = get_timer(0); + unsigned reg = 0, port = 0; + int rc; + + /* disable the power to the usb hub prior to init */ + rc = omap_request_gpio(GPIO_HUB_POWER); + if (rc < 0) { + printf("Could not request gpio %d\n", GPIO_HUB_POWER); + return rc; + } + + rc = omap_request_gpio(GPIO_HUB_NRESET); + if (rc < 0) { + printf("Could not request gpio %d\n", GPIO_HUB_NRESET); + omap_free_gpio(GPIO_HUB_POWER); + return rc; + } + + omap_set_gpio_direction(GPIO_HUB_POWER, 0); + omap_set_gpio_dataout(GPIO_HUB_POWER, 0); + omap_set_gpio_direction(GPIO_HUB_NRESET, 0); + omap_set_gpio_dataout(GPIO_HUB_NRESET, 0); + omap_set_gpio_dataout(GPIO_HUB_NRESET, 1); + + rc = omap4_ehci_hcd_init(); + + if (rc < 0) + return rc; + + omap_set_gpio_dataout(GPIO_HUB_POWER, 1); + + return 0; +} + +int ehci_hcd_stop(void) +{ + omap4_ehci_hcd_stop(); + + omap_set_gpio_dataout(GPIO_HUB_POWER, 0); + omap_set_gpio_dataout(GPIO_HUB_NRESET, 0); + omap_free_gpio(GPIO_HUB_POWER); + omap_free_gpio(GPIO_HUB_NRESET); +} |