Enable the power to the USB port only when the USB port is really needed. Do not enable the power unconditionally.
Signed-off-by: Marek Vasut marex@denx.de Cc: Stefano Babic sbabic@denx.de --- board/olimex/mx23_olinuxino/mx23_olinuxino.c | 16 ++++++++++++++-- 1 file changed, 14 insertions(+), 2 deletions(-)
diff --git a/board/olimex/mx23_olinuxino/mx23_olinuxino.c b/board/olimex/mx23_olinuxino/mx23_olinuxino.c index e2a03a1..65cbbf1 100644 --- a/board/olimex/mx23_olinuxino/mx23_olinuxino.c +++ b/board/olimex/mx23_olinuxino/mx23_olinuxino.c @@ -30,13 +30,25 @@ int board_early_init_f(void) /* SSP0 clock at 96MHz */ mxs_set_sspclk(MXC_SSPCLK0, 96000, 0);
+ return 0; +} + #ifdef CONFIG_CMD_USB - /* Enable LAN9512 */ +int board_ehci_hcd_init(int port) +{ + /* Enable LAN9512 (Maxi) or GL850G (Mini) USB HUB power. */ gpio_direction_output(MX23_PAD_GPMI_ALE__GPIO_0_17, 1); -#endif + udelay(100); + return 0; +}
+int board_ehci_hcd_exit(int port) +{ + /* Enable LAN9512 (Maxi) or GL850G (Mini) USB HUB power. */ + gpio_direction_output(MX23_PAD_GPMI_ALE__GPIO_0_17, 0); return 0; } +#endif
int dram_init(void) {