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authorMarek Vasut <marex@denx.de>2014-04-28 03:38:42 +0200
committerStefano Babic <sbabic@denx.de>2014-09-29 09:02:16 +0200
commitca11db2603e58cfee8e64931dcc3c87023ecb1cf (patch)
tree2e30cfd962c5f2e5d0d496dc5a320b3c006c6095 /board/olimex
parent7c604e98c2213619af6a8c3064418af9b689cf56 (diff)
arm: mxs: olinuxino: Enable USB only when needed
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>
Diffstat (limited to 'board/olimex')
-rw-r--r--board/olimex/mx23_olinuxino/mx23_olinuxino.c16
1 files changed, 14 insertions, 2 deletions
diff --git a/board/olimex/mx23_olinuxino/mx23_olinuxino.c b/board/olimex/mx23_olinuxino/mx23_olinuxino.c
index e2a03a110b..65cbbf15b7 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)
{