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* ath79: add support for Ubiquiti AirRouterRussell Senior2018-12-034-1/+48
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Indoor low-power router with 2.4 GHz radio CPU: Atheros AR7241 rev 1 RAM: 32 MB Flash: 8 MB NOR SPI Switch: Atheros AR7240 Ports: 1x WAN, 4x LAN 10/100 Ethernet WLAN: Atheros AR9285 (2.4 GHz) USB: 1x USB2 host port Note: Ethernet WAN/LAN port naming is reversed from ar71xx. WAN is eth0; LAN is eth1.1. UART settings: 115200, 8N1 LEDs +-------------------------- | | | | | | | | VCC | x x RX | * x | x x | x x TX | * x GND | * x | | | | +-------------------------- ETHERNET PORTS Installation from Ubiquiti firmware, is as for other ubnt-xm AirOs devices. Signed-off-by: Russell Senior <russell@personaltelco.net>
* ath79: split ubnt outdoor device leds into separate dtsiRussell Senior2018-12-035-31/+39
| | | | | | Move common LED configuration into a separate includible dtsi. Signed-off-by: Russell Senior <russell@personaltelco.net>
* x86: make sysupgrade.tgz reachable againTomasz Maciej Nowak2018-12-031-1/+1
| | | | | | | | | Moving binding mount before check for saved sysupgrade configuration made it unreachable. Fix it by moving binding mount after the check. Fixes: f78b2616 (x86: mount writable bootfs) Reported-by: Lucian Cristian <luci@powerneth.ro> Signed-off-by: Tomasz Maciej Nowak <tomek_n@o2.pl>
* ramips: merge relocate compile into build recipeMathias Kresin2018-11-302-10/+5
| | | | | | | Compile the loader if the relocate-kernel image recipe is used and get rid of the legacy build code to do so. Signed-off-by: Mathias Kresin <dev@kresin.me>
* ramips: specify "firmware" partition format in JBOOT devicesPawel Dembicki2018-11-305-3/+8
| | | | | | | | | | | | | Specify firmware partition format by compatible string. List of devices: -DWR-116-A1 -DWR-118-A2 -DWR-512-B -DWR-921-C1 -LR-25G001 Signed-off-by: Pawel Dembicki <paweldembicki@gmail.com>
* kernel: add DT binding support to the jimage parserPawel Dembicki2018-11-301-0/+11
| | | | | | | | It allows specifying jimage parser directly in the DT. Tested on LAVA LR-25G001 Signed-off-by: Pawel Dembicki <paweldembicki@gmail.com>
* ramips: add support for MTC Wireless Router WR1201Valentín Kivachuk2018-11-305-0/+187
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | MTC Wireless Router WR1201 is the OEM name of the board. It is also sold rebranded as STRONG Dual Band Gigabit Router 1200. Specification: - SoC: MediaTek MT7621A (880 MHz) - Flash: 16 MiB - RAM: 128 MiB - Wireless: 2.4Ghz(MT7602EN) and 5Ghz (MT7612EN) - Ethernet speed: 10/100/1000 - Ethernet ports: 4+1 - 1x USB 3.0 - 1x microSD reader - Serial baud rate of Bootloader and factory firmware: 57600 The OEM webinterface writes only as much bytes as listed in the uImage header field to the flash. Also, the OEM webinterface evaluates the name field of uImage header before flashing (the string "WR1201_8_128") To flash via webinterface, is mandatory to use first initramfs.bin and after (from the OpenWrt) the sysupgrade.bin Some notes: - Some microSD will not work: mtk-sd 1e130000.sdhci: no support for card's volts mmc0: error -22 whilst initialising SDIO card mtk-sd 1e130000.sdhci: no support for card's volts mmc0: error -22 whilst initialising MMC card mtk-sd 1e130000.sdhci: no support for card's volts mmc0: error -22 whilst initialising SDIO card mtk-sd 1e130000.sdhci: card claims to support voltages below defined range mtk-sd 1e130000.sdhci: no support for card's volts mmc0: error -22 whilst initialising MMC card mtk-sd 1e130000.sdhci: no support for card's volts mmc0: error -22 whilst initialising SDIO card mtk-sd 1e130000.sdhci: no support for card's volts mmc0: error -22 whilst initialising MMC card Signed-off-by: Valentín Kivachuk <vk18496@gmail.com>
* ramips: specify "firmware" partition formatINAGAKI Hiroshi2018-11-29246-0/+246
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Specify firmware partition format by compatible string. formats in ramips: - denx,uimage - tplink,firmware - seama It's unlikely but the firmware splitting might not work any longer for the following boards, due to a custom header: - EX2700: two uImage headers - BR-6478AC-V2: edimax-header - 3G-6200N: edimax-header - 3G-6200NL: edimax-header - BR-6475ND: edimax-header - TEW-638APB-V2: umedia-header - RT-N56U: mkrtn56uimg But it rather looks like the uImage splitter is fine with the extra header. The following dts are not touched, due to lack of a compatible string in the matching firmware splitter submodule: - CONFIG_MTD_SPLIT_JIMAGE_FW DWR-116-A1.dts DWR-118-A2.dts DWR-512-B.dts DWR-921-C1.dts LR-25G001.dts - CONFIG_MTD_SPLIT_TRX_FW WCR-1166DS.dts WSR-1166.dts - CONFIG_MTD_SPLIT_MINOR_FW RBM11G.dts RBM33G.dts - CONFIG_MTD_SPLIT_LZMA_FW AR670W.dts - CONFIG_MTD_SPLIT_WRGG_FW DAP-1522-A1.dts Signed-off-by: INAGAKI Hiroshi <musashino.open@gmail.com>
* ramips: unifiy sysupgrade file extensionsMathias Kresin2018-11-292-8/+7
| | | | | | | Use .bin as file extension where possible. The user doesn't need to that sysupgrade images for NAND boards are tarballs. Signed-off-by: Mathias Kresin <dev@kresin.me>
* ramips: remove duplicate image build variablesMathias Kresin2018-11-291-4/+1
| | | | | | | Remove image build variables which are set to the same value as the default image build recipe. Signed-off-by: Mathias Kresin <dev@kresin.me>
* ramips: bdcom-wap2100: Change DTS license to GPL-2.0-or-later OR MITPetr Štetiar2018-11-291-0/+1
| | | | | | | | Having MIT as alternative is sometimes preferred by upstream maintainers and allows sharing that simple code with other projects. We don't really want multiple DTS versions for the same device. Signed-off-by: Petr Štetiar <ynezz@true.cz>
* ath79: ubnt-xw: Change DTS license to GPL-2.0-or-later OR MITPetr Štetiar2018-11-291-1/+1
| | | | | | | | Having MIT as alternative is sometimes preferred by upstream maintainers and allows sharing that simple code with other projects. We don't really want multiple DTS versions for the same device. Signed-off-by: Petr Štetiar <ynezz@true.cz>
* ath79: ubnt-bullet-m-xw: Change DTS license to GPL-2.0-or-later OR MITPetr Štetiar2018-11-291-1/+1
| | | | | | | | Having MIT as alternative is sometimes preferred by upstream maintainers and allows sharing that simple code with other projects. We don't really want multiple DTS versions for the same device. Signed-off-by: Petr Štetiar <ynezz@true.cz>
* ramips: fix MTD EEPROM offset for TL-WR840N v5Felix Fietkau2018-11-291-1/+1
| | | | | | | The previous offset was invalid and pointed to the end of the partition, which was causing issues with mt76 Signed-off-by: Felix Fietkau <nbd@nbd.name>
* ramips: bdcom-wap2100: Enable mt7610e 5GHz radioPetr Štetiar2018-11-282-1/+13
| | | | | | | | | | | | The 5GHz radio of this device uses an mt7610e PCI-E chip, which has been recently started to be supported. mt76x0e 0000:01:00.0: card - bus=0x1, slot = 0x0 irq=4 mt76x0e 0000:01:00.0: ASIC revision: 76100002 mt76x0e 0000:01:00.0: Firmware Version: 0.1.00 mt76x0e 0000:01:00.0: EEPROM ver:01 fae:00 Signed-off-by: Petr Štetiar <ynezz@true.cz>
* ramips: bdcom-wap2100: Set firmware partition format to denx,uimagePetr Štetiar2018-11-281-0/+1
| | | | | | | | | | | Specify firmware partition format to denx,uimage in compatible DTS property. 2 uimage-fw partitions found on MTD device firmware Creating 2 MTD partitions on "firmware": 0x000000000000-0x00000017f72b : "kernel" 0x00000017f72b-0x000000f70000 : "rootfs" Signed-off-by: Petr Štetiar <ynezz@true.cz>
* ramips: bdcom-wap2100: Fix boot failure by adding partitions compatible propertyPetr Štetiar2018-11-281-0/+1
| | | | | | | | | | | | | | Flash partitions were moved under partition table node, but addition of compatible property was omitted which lead to following boot failure: VFS: Cannot open root device "(null)" or unknown-block(0,0): error -6 Please append a correct "root=" boot option; here are the available partitions: 1f00 16384 mtdblock0 (driver?) Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0) Fixes: e4d9217f (ramips: improve BDCOM WAP2100-SK support) Signed-off-by: Petr Štetiar <ynezz@true.cz>
* mxs: use generic sysinfo board detectionMichael Heimpold2018-11-283-44/+2
| | | | | | | | | Since we do nothing special for mxs based boards, we can simply use the generic existing code. We just need to convert scripts to use the DT compatible strings. Signed-off-by: Michael Heimpold <mhei@heimpold.de>
* ramips: fix switch port order for HuaWei HG255DDavid Yang2018-11-281-1/+1
| | | | | | The order of port marks and LEDs is reversed according to the board. Signed-off-by: David Yang <mmyangfl@gmail.com>
* ramips: mt7620: add DIR-810L's mt7610e 5 GHz radioRoger Pueyo Centelles2018-11-282-1/+10
| | | | | | | | | | The 5 GHz radio of this device uses an mt7610e pci-e chip, which has been recently added support. Tested on the actual device as AP and client, TCP throughput ~90 Mbps U/D. Signed-off-by: Roger Pueyo Centelles <roger.pueyo@guifi.net>
* ramips: add support for UniElec U7621-06-512M-64M variantNishant Sharma2018-11-284-0/+102
| | | | | | | | | | | | | | | | | | | | | | Add support for UniElec U7621-06 variant with 512MB RAM and 64MB flash. Additional specs are below: CPU: MT7621 (880Mhz) Bootloader: Ralink U-Boot Flash: 64MB - U-Boot identifies as Macronix MX66L51235F - kernel identifies as MX66L51235l (65536 Kbytes) RAM: 512MB Rest of the details as per commit 46ab81e405d2 ("ramips add support for UniElec U7621-06") Signed-off-by: Nishant Sharma <nishant@unmukti.in> [use generic board detection, add firmware partition compatible, extend firmware partition to use all of the remaining flash space, add a maximum image size matching the firmware partition size] Signed-off-by: Mathias Kresin <dev@kresin.me>
* ramips: use generic board detection for Unielec u7621-06Mathias Kresin2018-11-284-13/+11
| | | | | | | | Use the generic board detection for the board instead of the target specific one. Mark the sysupgrade image compatible with the former used userspace boardname to allow an upgrade from earlier versions. Signed-off-by: Mathias Kresin <dev@kresin.me>
* ramips: add support for Wavlink WL-WN570HA1Thomas Vincent-Cross2018-11-285-0/+154
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This commit adds support for the Wavlink WL-WN570HA1, a dual-band PoE wireless router with the following specifications: - CPU: MediaTek MT7688AN 580MHz - Flash: 8MB - RAM: 64MB - Ethernet: 1x 10/100Mbps - 2.4 GHz: 802.11b/g/n SoC, 1T1R, 27 dBm - 5 GHz: 802.11a/n/ac MT7610E, 1T1R, 25 dBm - Antennas: 2x external (1 per radio), detachable - LEDs: 3 programmable + Wi-Fi, WAN/LAN, Power - Buttons: Reset Flashing instructions: Factory U-boot launches a TFTP client if reset button is pressed during power-on. Rename the sysupgrade file and configure TFTP as follows: - Client (WL-WN570HA1) IP: 192.168.10.101 - Server IP: 192.168.10.100 - Filename: firmware.bin Signed-off-by: Thomas Vincent-Cross <me@tvc.id.au> [use generic board detection, add firmware partition compatible] Signed-off-by: Mathias Kresin <dev@kresin.me>
* ath79: add support for ROSINSON WR818 boardRosy Song2018-11-273-0/+178
| | | | | | | | | | | | | | | | | | | | | | | | | | | This commit adds support for the ROSINSON WR818 WiFi-Router SoC: Qualcomm Atheros QCA9563, FLASH: Winbond W25Q128FV 16MBytes, WiFi: QCA9563 b/g/n 3x3 450Mbit/s, USB: 1x USB 2.0 Type A, 1x USB2.0 Type C, IN: WPS/Reset button GPIO1, OUT: Power LED red, Internet LED red, WLAN LED red, LAN1 LED red, LAN2 LED red, System LED red, UART: RX-GPIO18, TX-GPIO22, Tested and working: - Ethernet (LAN + WAN) - WiFi - OpenWRT sysupgrade - Button - LEDs Installation of OpenWRT from vendor firmware: - Connect to the Web-interface at http://192.168.1.1 - Go to "Administration" -> "Firmware Upgrade" - Upload the OpenWrt sysupgrade image Signed-off-by: Rosy Song <rosysong@rosinson.com>
* ath79: merge glinet gl-x750 dtsi and dtsMathias Kresin2018-11-272-101/+97
| | | | | | | | | The board doesn't come in different flash type flavours, hence there is no need to keep a dtsi + dts for this purpose. While at it, fix some whitespace issues. Signed-off-by: Mathias Kresin <dev@kresin.me>
* ath79: rename glinet x750Mathias Kresin2018-11-276-8/+8
| | | | | | The boardname is gl-x750 and is already used for the led names. Signed-off-by: Mathias Kresin <dev@kresin.me>
* ramips: fix alphabetic ordering of skylab skw92aRussell Senior2018-11-271-1/+1
| | | | | | Fix the alphabetic ordering of skylab skw92a in ramips_setup_interfaces. Signed-off-by: Russell Senior <russell@personaltelco.net>
* ramips: fix RavPower WD03 SoC dtsi includeMatthias Badaire2018-11-271-1/+1
| | | | | | | | | The RavPower WD03 is a mt7620n based baord. With the change applied, I2C should work now with the RavPower WD03. Signed-off-by: Matthias Badaire <mbadaire@gmail.com> [reworded commit message] Signed-off-by: Mathias Kresin <dev@kresin.me>
* Revert "x86: add intel microcode entries to grub config"John Crispin2018-11-274-12/+4
| | | | | | This reverts commit 546fced2a23557e95dd34246744c3aa6cad92fe6. Signed-off-by: John Crispin <john@phrozen.org>
* Revert "x86: add amd microcode entries to grub config"John Crispin2018-11-273-14/+16
| | | | | | This reverts commit a822283c7e56bb3b409712e0eb9af5a91aac247d. Signed-off-by: John Crispin <john@phrozen.org>
* ath79: add Archer C58/C59 partition compatibleDavid Bauer2018-11-262-0/+2
| | | | | | | | | | This commit adds firmware partition compatible for the TP-Link Archer C58 v1 and Archer C59 v1. Since a22311e this allows to select the correct mtdsplit parser instead of trying all available ones one by one. Signed-off-by: David Bauer <mail@david-bauer.net>
* ath79: add firmware partition compatible for OCEDODavid Bauer2018-11-262-0/+2
| | | | | | | | | | This commit adds firmware partition compatible for the OCEDO Raccoon and OCEDO Koala. Since a22311e this allows to select the correct mtdsplit parser instead of trying all available ones one by one. Signed-off-by: David Bauer <mail@david-bauer.net>
* ath79: specify "firmware" partition format for I-O DATA devicesINAGAKI Hiroshi2018-11-262-0/+2
| | | | | | | | | | | | Specify firmware partition format (denx,uimage) by compatible string for I-O DATA devices. affected devices (&run tested) - WN-AC1167DGR - WN-AC1600DGR2 Signed-off-by: INAGAKI Hiroshi <musashino.open@gmail.com>
* ath79: specify "firmware" partition format for ELECOM WRC-300GHBK2-IINAGAKI Hiroshi2018-11-261-0/+1
| | | | | | | Specify firmware partition format (denx,uimage) by compatible string for ELECOM WRC-300GHBK2-I. Signed-off-by: INAGAKI Hiroshi <musashino.open@gmail.com>
* ath79: fix shebangMathias Kresin2018-11-261-1/+1
| | | | | | | The shebang was accidentally changed with 9989fd5154fd ("ath79: add support for GL-iNet GL-X750"). Signed-off-by: Mathias Kresin <dev@kresin.me>
* ramips: fix GB-PC1/PC2 build errorMathias Kresin2018-11-262-10/+0
| | | | | | | | | | With ed25e3ac02d9 ("ramips: fix some clocks in mt7621.dtsi") the cpuclock node was dropped from the mt7621.dtsi without removing the references to this node from the GB-PC1/PC2 dts files. Remove them now, to fix the build error. Signed-off-by: Mathias Kresin <dev@kresin.me>
* ramips: fix Lava LR-25G001 invalid led namesMathias Kresin2018-11-261-6/+4
| | | | | | | | | | It has to be <board>:<colour>:<function> and is expected exactly this way by the userspace scripts. While at it, fix some whitespace issues in the dts file and rename the flash node as required upstream. Signed-off-by: Mathias Kresin <dev@kresin.me>
* kernel: ar8xxx: get_arl_table now shows all ports of an entryGünther Kelleter2018-11-264-19/+13
| | | | | | | Multicast ARL entries can have multiple destination ports. Get and dump all destination ports of each entry, not just the lowest. Signed-off-by: Günther Kelleter <guenther.kelleter@devolo.de>
* ramips: rt2880: fix pci cells definitionMathias Kresin2018-11-261-2/+2
| | | | | | | Set the correct number of cells to fix "property has invalid length" dtc compiler warnings. Signed-off-by: Mathias Kresin <dev@kresin.me>
* ramips: improve BDCOM WAP2100-SK supportMathias Kresin2018-11-266-46/+47
| | | | | | | | | | | | | | | | | | | | | Use the generic board detection instead of the target specific one as all recent additions are doing. Setup the USB led via devicetree (a58535771f11) and include the required driver by default. Merge the led userspace setting with an existing identical case. Use the wps led for boot status indication. Move the partitions into a partition table node (6031ab345df8) and drop needless labels. Drop misplaced cells properties (53624c1702e6). Cleanup the pinmux and only switch pins to gpio functions which a referenced as gpio in the dts. Match the maximum image size with the size of the firmware partition. Signed-off-by: Mathias Kresin <dev@kresin.me>
* ramips: add Sanlinking Technologies D240 pinmux quirkMathias Kresin2018-11-261-0/+16
| | | | | | | | | | | | | | The sd function of the nd_sd group configures two of the groups pins as gpios. The pins are used as PCIe reset/power. Due to the driver load order, the pins are configured way to late if triggered by the sd-card driver. To not introduce another kind of driver load order dependency and configure the pins as early as possible, means during pinmux driver load. Signed-off-by: Mathias Kresin <dev@kresin.me>
* ralink: fix mt7620 nd_sd pinmuxMathias Kresin2018-11-261-0/+29
| | | | | | | | | In case the nd_sd group is set to the sd-card function, Pins 45 + 46 are configured as GPIOs. If they are blocked by the sd function, they can't be used as GPIOs. Reported-by: Kristian Evensen <kristian.evensen@gmail.com> Signed-off-by: Mathias Kresin <dev@kresin.me>
* ramips: revert fix rt3883 pci pinmuxMathias Kresin2018-11-261-1/+1
| | | | | | | | | | | | | | | This reverts commit dcdc6d9dadf2f97253f7891dacdd5b581d7914b4. Even if described this way in the datasheet, it causes a bootloop on a RT-N56U (v1): of-flash 1c000000.nor-flash: do_map_probe() failed for type cfi_probe of-flash 1c000000.nor-flash: do_map_probe() failed VFS: Cannot open root device “(null)” or unknown-block(0,0): error -6 Fixes: FS#1930 Signed-off-by: Mathias Kresin <dev@kresin.me>
* ramips: improve Skylab SKW92A supportMathias Kresin2018-11-266-21/+15
| | | | | | | | | | | | | | | | Use the generic board detection instead of the target specific one as all recent additions are doing. Add the wireless led according the gpio number from the datasheet. Rename the board part of the leds to match the name used for the compatible string. Finally, do not hijack the wps led for boot status indication longer than necessary. Merge userspace config into existing cases. Include the manufacture Name in the dts model string. Signed-off-by: Mathias Kresin <dev@kresin.me>
* Revert "ramips: mt7621-spi: replace the driver with upstream staging one"John Crispin2018-11-261-121/+98
| | | | | | | | This reverts commit a44f0000779d48c061703351df58adb88419a7c3. This breaks some mt7621 devices. Signed-off-by: John Crispin <john@phrozen.org>
* ramips: fix switch ports mapping for newifi d2Zheng Qian2018-11-261-1/+1
| | | | Signed-off-by: Zheng Qian <sotux82@gmail.com>
* lantiq: enable FXS ports on VR200vKevin Schmidt2018-11-265-220/+341
| | | | | | | Disables SMP support. Add VR200 target to keep SMP on FXS-less device variant. Signed-off-by: Kevin Schmidt <kevin.patrick.schmidt@googlemail.com>
* ath79: modify mtd partitions for Buffalo BHR-4GRV2INAGAKI Hiroshi2018-11-265-31/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This commit modifies mtd partitions define for Buffalo BHR-4GRV2 and move it to generic subtarget. In Buffalo BHR-4GRV2, "kernel" partition is located behined "rootfs" partition in the stock firmware. This causes the size of the kernel to be limited by the fixed value. 0x50000 0xe80000 0xff0000 +-------------------------------+--------------+ | rootfs | kernel | | (14528k) | (1472k) | +-------------------------------+--------------+ After ar71xx was updated to Kernel 4.14, the kernel size of BHR-4GRV2 exceeded the limit, and it breaks builds on official buildbot. Since this issue was also confirmed in ath79, I modified the mtd partitions to get rid of that limitation. 0x50000 0xff0000 +----------------------------------------------+ | firmware | | (16000k) | +----------------------------------------------+ However, this commit breaks compatibility with ar71xx firmware, so I dropped "SUPPORTED_DEVICES += bhr-4grv2". This commit requires new flash instruction instead of the old one. Flash instruction using initramfs image: 1. Connect the computer to the LAN port of BHR-4GRV2 2. Set the IP address of the computer to 192.168.12.10 3. Rename the OpenWrt initramfs image to "bhr4grv2-uImage-initramfs-gzip.bin" and place it into the TFTP directory 4. Start the tftp server on the computer 5. While holding down the "ECO" button, connect power cable to BHR-4GRV2 and turn on it 6. Flashing (orange) diag LED and release the finger from the button, BHR-4GRV2 downloads the intiramfs image from TFTP server and boot with it 7. On the initramfs image, create "/etc/fw_env.config" file with following contents /dev/mtd1 0x0 0x10000 0x10000 8. Execute following commands to add environment variables for u-boot fw_setenv ipaddr 192.168.12.1 fw_setenv serverip 192.168.12.10 fw_setenv ethaddr 00:aa:bb:cc:dd:ee fw_setenv bootcmd "bootm 0x9f050000 || bootm 0x9fe80000" 9. Perform sysupgrade with squashfs-sysupgrade image 10. Wait ~150 seconds to complete flashing And this commit includes small fix; BHR-4GRV2 has QCA9557 as a SoC, not QCA9558. Signed-off-by: INAGAKI Hiroshi <musashino.open@gmail.com>
* ath79: Remove source-only flagRobert Marko2018-11-261-1/+1
| | | | | | | Remove the source-only flag from ath79, its supposed to replace ar71xx after next stable release but buildbots are not currently generating images for it. So in order to expand testing as much as possible and prepare for moving to ath79 lets enable the buildbots to actually build the target. Signed-off-by: Robert Marko <robimarko@gmail.com>
* ramips: mt7621-spi: replace the driver with upstream staging oneChuanhong Guo2018-11-261-98/+121
| | | | | | That driver is more efficient thanks to the refactor of spi reading operation. Signed-off-by: Chuanhong Guo <gch981213@gmail.com>
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