Hello Minkyu Kang, On Thu, Nov 20, 2014 at 12:41 AM, Minkyu Kang <mk7.k...@samsung.com> wrote: > Dear Suriyan Ramasami, > > On 20/11/14 01:21, Suriyan Ramasami wrote: >> The USB host code was missing gpio_request() calls before using the gpio >> functions, causing errors to be printed out. >> >> Signed-off-by: Suriyan Ramasami <suriya...@gmail.com> >> >> --- >> >> Changes in v1: >> - Added gpio_request() call in board_gpio_init() >> >> board/samsung/odroid/odroid.c | 13 +++++++++++-- >> 1 file changed, 11 insertions(+), 2 deletions(-) >> >> diff --git a/board/samsung/odroid/odroid.c b/board/samsung/odroid/odroid.c >> index f7396ab..a2c008e 100644 >> --- a/board/samsung/odroid/odroid.c >> +++ b/board/samsung/odroid/odroid.c >> @@ -382,6 +382,17 @@ static void board_gpio_init(void) >> gpio_set_pull(EXYNOS4X12_GPIO_X31, S5P_GPIO_PULL_UP); >> gpio_set_drv(EXYNOS4X12_GPIO_X31, S5P_GPIO_DRV_4X); >> gpio_direction_input(EXYNOS4X12_GPIO_X31); >> + >> +#ifdef CONFIG_CMD_USB >> + /* USB3503A Reference frequency */ >> + gpio_request(EXYNOS4X12_GPIO_X30, "USB3503A RefFreq"); >> + >> + /* USB3503A Connect */ >> + gpio_request(EXYNOS4X12_GPIO_X34, "USB3503A Connect"); >> + >> + /* USB3503A Reset */ >> + gpio_request(EXYNOS4X12_GPIO_X35, "USB3503A Reset"); >> +#endif >> } >> >> static int pmic_init_max77686(void) >> @@ -489,10 +500,8 @@ int board_usb_init(int index, enum usb_init_type init) >> >> p_pmic = pmic_get("MAX77686_PMIC"); >> if (p_pmic && !pmic_probe(p_pmic)) { >> - max77686_set_buck_mode(p_pmic, 8, OPMODE_OFF); >> max77686_set_buck_voltage(p_pmic, 8, 750000); >> max77686_set_buck_voltage(p_pmic, 8, 3300000); >> - max77686_set_buck_mode(p_pmic, 8, OPMODE_ON); > > why you remove those two lines? > This patch is for adding gpio_request call, and there's no explain for this > change. > Sorry about the confusion caused. This topic was discussed in another thread, and I shall add the comments (from Przemyslaw) in the next version as to why the BUCK OFF and ON does not work as expected on the Odroid boards.
Regards - Suriyan > Thanks, > Minkyu Kang. _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot