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authorJohn Crispin <blogic@openwrt.org>2015-10-26 09:01:28 +0000
committerJohn Crispin <blogic@openwrt.org>2015-10-26 09:01:28 +0000
commitf539d3d452145090145a6bdc498577f47b1d0589 (patch)
tree4b5ebb94e75b32cfe668a537df5693ff996c1e00 /target/linux/ar71xx/files/arch/mips/ath79/mach-antminer-s3.c
parent8f3f905b91f165f8d8ffe0ab0edd6b45bb8e9495 (diff)
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ar71xx: Bitmain Antminer S1/S3 set GPIO for USB Power
Antminers using the stock bootloader will not hash without this GPIO set. Applies to DD and CC Signed-off-by: L. D. Pinney <ldpinney@gmail.com> git-svn-id: svn://svn.openwrt.org/openwrt/trunk@47261 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/ar71xx/files/arch/mips/ath79/mach-antminer-s3.c')
-rw-r--r--target/linux/ar71xx/files/arch/mips/ath79/mach-antminer-s3.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/target/linux/ar71xx/files/arch/mips/ath79/mach-antminer-s3.c b/target/linux/ar71xx/files/arch/mips/ath79/mach-antminer-s3.c
index aa54e9cafc..b77a6ccc4e 100644
--- a/target/linux/ar71xx/files/arch/mips/ath79/mach-antminer-s3.c
+++ b/target/linux/ar71xx/files/arch/mips/ath79/mach-antminer-s3.c
@@ -25,6 +25,7 @@
#define ANTMINER_S3_GPIO_LED_WLAN 0
#define ANTMINER_S3_GPIO_LED_SYSTEM 17
#define ANTMINER_S3_GPIO_LED_LAN 22
+#define ANTMINER_S3_GPIO_USB_POWER 26
#define ANTMINER_S3_GPIO_BTN_RESET 11
@@ -81,6 +82,10 @@ static void __init antminer_s3_setup(void)
ath79_register_gpio_keys_polled(-1, ANTMINER_S3_KEYSPOLL_INTERVAL,
ARRAY_SIZE(ANTMINER_S3_GPIO_keys),
ANTMINER_S3_GPIO_keys);
+
+ gpio_request_one(ANTMINER_S3_GPIO_USB_POWER,
+ GPIOF_OUT_INIT_HIGH | GPIOF_EXPORT_DIR_FIXED,
+ "USB power");
ath79_register_usb();
ath79_register_m25p80(&ANTMINER_S3_flash_data);