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* ramips: increase spi-max-frequency for ipTIME mt7620 devicesSungbo Eo2020-04-181-1/+1
| | | | | | | | | | | | This commit increases the hardware SPI frequency from 24.2MHz to 48.3MHz. [ 5.314163] m25p80 spi0.0: speed: 24166666/40000000, rate: 8, prescal: 2, loops: 226 [ 5.076323] m25p80 spi0.0: speed: 48333333/50000000, rate: 4, prescal: 1, loops: 162 `time cat /dev/mtd2 >/dev/null` is reduced from 5.64s to 4.36s on A104ns, and from 11.39s to 8.81s on A1004ns. Signed-off-by: Sungbo Eo <mans0n@gorani.run>
* ramips: add support for ipTIME A104nsSungbo Eo2019-12-171-0/+86
ipTIME A104ns is a 2.4/5GHz band AC750 router, based on MediaTek MT7620A. Specifications: - SoC: MT7620A - RAM: DDR2 64MB - Flash: SPI NOR 8MB - WiFi: - 2.4GHz: SoC internal - 5GHz: MT7610EN - Ethernet: 5x 10/100Mbps - Switch: SoC internal - USB: 1x 2.0 - UART: - J2: 3.3V, TX, RX, GND (3.3V is the square pad) / 57600 8N1 Installation via web interface: 1. Flash **initramfs** image through the stock web interface. 2. Boot into OpenWrt and perform sysupgrade with sysupgrade image. Revert to stock firmware: 1. Perform sysupgrade with stock image. In contrast to to-be-supported A1004ns, the A104ns has no usable value in 0x1fc40 (uboot), so wan_mac needs to be calculated. Also note that GPIOs for the LEDs really are inverted compared to the A1004ns. Signed-off-by: Sungbo Eo <mans0n@gorani.run> [moved state_default to device DTS, reordered properties in wmac, added comment about wan_mac and LED GPIOs] Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>