ramips: add LinkIt Smart7688 support
Signed-off-by: John Crispin <blogic@openwrt.org> Backport of r47203 git-svn-id: svn://svn.openwrt.org/openwrt/branches/chaos_calmer@47227 3c298f89-4303-0410-b956-a3cf2f4a3e73master
John Crispin
parent
563f3a4cb7
commit
ebff32ce9e
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@ -19,6 +19,8 @@ all0256n | \
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all5002)
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ubootenv_add_uci_config "/dev/mtd1" "0x0" "0x10000" "0x10000"
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;;
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linkits7688 | \
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wsr-600 | \
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wsr-1166 | \
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br6425)
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@ -45,6 +45,8 @@ ramips_setup_interfaces()
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3g150b | \
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3g300m | \
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linkits7688 | \
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linkits7688d | \
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microwrt | \
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w150m | \
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zte-q7 | \
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@ -377,6 +379,11 @@ ramips_setup_macs()
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wan_mac="$(grep -m1 mac= "/dev/mtd${index}" | cut -d= -f2)"
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lan_mac=$wan_mac
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;;
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linkits7688 | \
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linkits7688d)
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wan_mac=$(mtd_get_mac_binary factory 4)
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lan_mac=$(mtd_get_mac_binary factory 46)
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;;
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*)
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lan_mac=$(cat /sys/class/net/eth0/address)
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wan_mac=$(macaddr_add "$lan_mac" 1)
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@ -418,6 +418,15 @@ ramips_board_detect() {
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*"Mediatek MT7628AN evaluation board")
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name="mt7628"
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;;
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*"MediaTek LinkIt Smart7688")
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linkit="$(dd bs=1 skip=1024 count=12 if=/dev/mtd2 2> /dev/null)"
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if [ "${linkit}" = "LINKITS7688D" ]; then
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name="linkits7688d"
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RAMIPS_MODEL="${machine} DUO"
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else
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name="linkits7688"
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fi
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;;
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*)
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name="generic"
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;;
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@ -60,6 +60,8 @@ platform_check_image() {
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ht-tm02 | \
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hw550-3g | \
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ip2202 | \
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linkits7688 | \
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linkits7688d | \
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m2m | \
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m3 | \
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m4 | \
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@ -0,0 +1,166 @@
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/dts-v1/;
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/include/ "mt7628an.dtsi"
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/ {
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compatible = "mediatek,linkit", "mediatek,mt7628an-soc";
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model = "MediaTek LinkIt Smart7688";
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chosen {
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bootargs = "console=ttyS2,57600";
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};
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memory@0 {
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device_type = "memory";
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reg = <0x0 0x8000000>;
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};
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pinctrl {
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state_default: pinctrl0 {
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gpio {
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ralink,group = "gpio";
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ralink,function = "gpio";
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};
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perst {
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ralink,group = "perst";
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ralink,function = "gpio";
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};
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refclk {
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ralink,group = "refclk";
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ralink,function = "gpio";
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};
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i2s {
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ralink,group = "i2s";
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ralink,function = "gpio";
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};
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spis {
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ralink,group = "spis";
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ralink,function = "gpio";
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};
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wled_kn {
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ralink,group = "wled_kn";
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ralink,function = "gpio";
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};
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wled_an {
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ralink,group = "wled_an";
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ralink,function = "wled_an";
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};
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wdt {
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ralink,group = "wdt";
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ralink,function = "gpio";
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};
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};
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};
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palmbus@10000000 {
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spi@b00 {
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status = "okay";
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pinctrl-names = "default";
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pinctrl-0 = <&spi_pins>, <&spi_cs1_pins>;
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m25p80@0 {
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#address-cells = <1>;
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#size-cells = <1>;
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compatible = "mx25l25635e";
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reg = <0 0>;
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linux,modalias = "m25p80", "mx25l25635e";
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spi-max-frequency = <40000000>;
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m25p,chunked-io = <31>;
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partition@0 {
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label = "u-boot";
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reg = <0x0 0x30000>;
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read-only;
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};
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partition@30000 {
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label = "u-boot-env";
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reg = <0x30000 0x10000>;
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};
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factory: partition@40000 {
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label = "factory";
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reg = <0x40000 0x10000>;
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read-only;
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};
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partition@50000 {
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label = "firmware";
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reg = <0x50000 0x1fb0000>;
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};
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};
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spidev@1 {
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#address-cells = <1>;
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#size-cells = <1>;
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compatible = "spidev";
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reg = <1 0>;
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spi-max-frequency = <40000000>;
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};
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};
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i2c@900 {
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status = "okay";
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};
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uart1@d00 {
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status = "okay";
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};
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uart2@e00 {
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status = "okay";
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};
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pwm@5000 {
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status = "okay";
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};
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};
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ethernet@10100000 {
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mtd-mac-address = <&factory 0x28>;
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};
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sdhci@10130000 {
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status = "okay";
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mediatek,cd-high;
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// mediatek,cd-poll;
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};
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bootstrap {
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compatible = "mediatek,linkit";
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status = "okay";
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};
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gpio-leds {
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compatible = "gpio-leds";
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wifi {
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label = "mediatek:orange:wifi";
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gpios = <&wgpio 0 0>;
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default-state = "on";
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};
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};
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gpio-keys-polled {
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compatible = "gpio-keys-polled";
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#address-cells = <1>;
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#size-cells = <0>;
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poll-interval = <20>;
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wps {
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label = "reset";
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gpios = <&gpio1 6 1>;
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linux,code = <0x211>;
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};
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};
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wgpio: gpio-wifi {
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#address-cells = <1>;
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#size-cells = <0>;
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compatible = "mediatek,gpio-wifi";
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gpio-controller;
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#gpio-cells = <2>;
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};
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};
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@ -201,6 +201,10 @@ ralink_default_fw_size_16M=16121856
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BuildFirmware/Default16M/squashfs=$(call BuildFirmware/OF,$(1),$(2),$(3),$(ralink_default_fw_size_16M),$(4))
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BuildFirmware/Default16M/initramfs=$(call BuildFirmware/OF/initramfs,$(1),$(2),$(3),$(4))
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ralink_default_fw_size_32M=33226752
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BuildFirmware/Default32M/squashfs=$(call BuildFirmware/OF,$(1),$(2),$(3),$(ralink_default_fw_size_32M),$(4))
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BuildFirmware/Default32M/initramfs=$(call BuildFirmware/OF/initramfs,$(1),$(2),$(3),$(4))
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# Build images for a custom sized flash layout
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# $(1) = squashfs/initramfs
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# $(2) = lowercase board name
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@ -982,6 +986,21 @@ define Image/Build/Profile/Default
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endef
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endif
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#
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# MT7688 Profiles
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#
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Image/Build/Profile/MT7688=$(call BuildFirmware/Default4M/$(1),$(1),mt7628,MT7628)
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Image/Build/Profile/LinkIt7688=$(call BuildFirmware/Default32M/$(1),$(1),LinkIt7688,LINKIT7688)
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ifeq ($(SUBTARGET),mt7628)
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define Image/Build/Profile/Default
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$(call Image/Build/Profile/MT7688,$(1))
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$(call Image/Build/Profile/LinkIt7688,$(1))
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endef
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endif
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ifndef TARGET_DEVICES
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#
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# Generic Targets - only needed for legacy image building code
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@ -0,0 +1,18 @@
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#
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# Copyright (C) 2015 OpenWrt.org
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#
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# This is free software, licensed under the GNU General Public License v2.
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# See /LICENSE for more information.
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#
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define Profile/LinkIt7688
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NAME:=LinkIt7688
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PACKAGES:=\
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kmod-usb-core kmod-usb2 kmod-usb-ohci \
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uboot-envtools kmod-ledtrig-netdev
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endef
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define Profile/LinkIt7688/Description
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Default package set compatible with most boards.
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endef
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$(eval $(call Profile,LinkIt7688))
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@ -0,0 +1,94 @@
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--- a/drivers/misc/Makefile
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+++ b/drivers/misc/Makefile
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@@ -56,3 +56,4 @@
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obj-$(CONFIG_ECHO) += echo/
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obj-$(CONFIG_VEXPRESS_SYSCFG) += vexpress-syscfg.o
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obj-$(CONFIG_CXL_BASE) += cxl/
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+obj-$(CONFIG_SOC_MT7620) += linkit.o
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--- /dev/null
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+++ b/drivers/misc/linkit.c
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@@ -0,0 +1,84 @@
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+/*
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+ * This program is free software; you can redistribute it and/or modify
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+ * it under the terms of the GNU General Public License version 2 as
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+ * publishhed by the Free Software Foundation.
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+ *
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+ * Copyright (C) 2015 John Crispin <blogic@openwrt.org>
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+ */
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+
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+#include <linux/module.h>
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+#include <linux/platform_device.h>
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+#include <linux/of.h>
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+#include <linux/mtd/mtd.h>
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+#include <linux/gpio.h>
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+
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+#define LINKIT_LATCH_GPIO 11
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+
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+struct linkit_hw_data {
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+ char board[16];
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+ char rev[16];
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+};
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+
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+static void sanify_string(char *s)
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+{
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+ int i;
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+
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+ for (i = 0; i < 15; i++)
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+ if (s[i] <= 0x20)
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+ s[i] = '\0';
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+ s[15] = '\0';
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+}
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+
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+static int linkit_probe(struct platform_device *pdev)
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+{
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+ struct linkit_hw_data hw;
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+ struct mtd_info *mtd;
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+ size_t retlen;
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+ int ret;
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+
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+ mtd = get_mtd_device_nm("factory");
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+ if (IS_ERR(mtd))
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+ return PTR_ERR(mtd);
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+
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+ ret = mtd_read(mtd, 0x400, sizeof(hw), &retlen, (u_char *) &hw);
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+ put_mtd_device(mtd);
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+
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+ sanify_string(hw.board);
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+ sanify_string(hw.rev);
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+
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+ dev_info(&pdev->dev, "Version : %s\n", hw.board);
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+ dev_info(&pdev->dev, "Revision : %s\n", hw.rev);
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+
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+ if (!strcmp(hw.board, "LINKITS7688")) {
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+ dev_info(&pdev->dev, "setting up bootstrap latch\n");
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+
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+ if (devm_gpio_request(&pdev->dev, LINKIT_LATCH_GPIO, "bootstrap")) {
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+ dev_err(&pdev->dev, "failed to setup bootstrap gpio\n");
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+ return -1;
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+ }
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+ gpio_direction_output(LINKIT_LATCH_GPIO, 0);
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+ }
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+
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+ return 0;
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+}
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+
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+static const struct of_device_id linkit_match[] = {
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+ { .compatible = "mediatek,linkit" },
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+ {},
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+};
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+MODULE_DEVICE_TABLE(of, linkit_match);
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+
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+static struct platform_driver linkit_driver = {
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+ .probe = linkit_probe,
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+ .driver = {
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+ .name = "mtk-linkit",
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+ .owner = THIS_MODULE,
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+ .of_match_table = linkit_match,
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+ },
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+};
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+
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+int __init linkit_init(void)
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+{
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+ return platform_driver_register(&linkit_driver);
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+}
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+late_initcall_sync(linkit_init);
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