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>
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>
