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authorChristian Lamparter <chunkeey@googlemail.com>2016-07-20 15:44:57 +0200
committerFelix Fietkau <nbd@nbd.name>2016-07-22 09:48:12 +0200
commit9e0fd1b52ad1f805a308bf6a5a13236f352fd962 (patch)
treec01eaf08bb04ea37b07070469e8077c402a5d111 /target/linux/apm821xx/files/arch
parent47eeb9f857044de6e79c79577a1a7d6a57ac5046 (diff)
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apm821xx: add support for the Netgear Centria N900 WNDR4700/WNDR4720
This patch adds support for Netgear Centria N900 WNDR4700/WNDR4720 hardware highlights: CPU: AMCC PowerPC APM82181 Rev. E at 1000 MHz (PLB=166, OPB=83, EBC=83 MHz) Security support, Boot ROM Location NAND wo/ECC 2k page (8 bits) 32 kB I-Cache 32 kB D-Cache, 256 kB L2-Cache, 32 kB OnChip Memory Board: AMCC APM82181 Evaluation Board, PCIE0/SATA1, 1*USB OTG DRAM: 256 MB (ECC not enabled, 500 Mb/s, 32-bit, CL3) NAND: 128 MiB (SLC, erase size: 128 KiB, page size: 2048, OOB size: 64) ETH: Atheros AR8327N Gigabit Switch (4 x LAN, 1 x WAN) USB: 2 x 3.0 (Renesas uPD720202K8-711-BAA-A, firmware not included) SATA: 1 x SATA-II 3.5" Hard Drive Bay for HDDs (DesignWare SATA). WLAN1: Atheros AR9380 5GHz 802.11an 3:3x3 WLAN2: Atheros AR9581 2.4GHz 802.11bgn 3:3x3 SDCARD: GL827L SD/MMC/MS Flash Card Reader (on internal dwc2 USB 2.0 host) I2C: GMT G781 (i2c-0 @ 0x4d - lm90 compatible temperature sensor) TC654 (i2c-0 @ 0x1b - Dual PWM fan Speed controller) WARNING: The serial port needs a TTL/RS-232 v3.3 level converter! INFO: Since this device only has a NAND chip. I opted for going with root.squashfs in a UBI volume. There's no squashfs/jffs2 image. This target produces three images. a. netgear factory image This image can be used to flash the Netgear WNDR4700 via the firmware recovery mechanism and the web admin site. The bootloader can be instructed to do a firmware recovery via the # fw_recovery command. It will start a tftp server and listen on 192.168.1.1 (the ipaddr variable in u-boot) for incoming, binary tftp clients. The firmware recovery mechanism is also started if any of the flash content which contains the kernel, device-tree definitions or the (fake)rootfs fails to verify or load. b. sysupgrade.tar image for sysupgrade An sysupgrade will replace the entire current LEDE installation with a newer version. This does include the kernel and the ubi rootfs partition. The configuration can be carried over automatically as well if desired. simply copy the sysupgrade.tar to a the WNDR4700 running LEDE and run: root@lede:~# sysupgrade sysupgrade.tar and let it reboot. Note: The devicetree flash area is NOT updated. Until the devicetree definition is stable, this can lead to all sorts of hardware detection problems! So make sure, if you experience issues: try the fw_recovery. If you are unsure whenever this affects you: test if you can reproduce your issue with the initramfs method. As it will always have up-to-date device-tree definitions. c. initramfs image for TFTP (for development and testing) To use the initramfs method, follow the following steps: 1) Move the "lede-apm821xx-netgear-WNDR4700-initramfs-kernel.bin" file to to the root directory of your TFTP server. 2) rename it to wndr4700.bin 3) On the WNDR4700 - Hit Enter during u-boot and insert: # tftp 400000 wndr4700.bin; run addtty; bootm 400000 - This will boot the LEDE image. Note: The default tftp server is 192.168.1.7, if you want to change it: # setenv serverip 192.168.8.7; Note2: The default address for the WNDR4700 is 192.168.1.1: # setenv ipaddr 192.168.8.8; Note: Connect you tftp server on the last LAN port (not the WAN) Note: The firmware for the USB 3.0 Host chip is not included anymore. Therefore the two USB 3.0 ports will not work without the uPD7070x-firmware package installed. Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Diffstat (limited to 'target/linux/apm821xx/files/arch')
-rw-r--r--target/linux/apm821xx/files/arch/powerpc/platforms/44x/wndr4700.c96
1 files changed, 96 insertions, 0 deletions
diff --git a/target/linux/apm821xx/files/arch/powerpc/platforms/44x/wndr4700.c b/target/linux/apm821xx/files/arch/powerpc/platforms/44x/wndr4700.c
new file mode 100644
index 0000000000..975ac461fe
--- /dev/null
+++ b/target/linux/apm821xx/files/arch/powerpc/platforms/44x/wndr4700.c
@@ -0,0 +1,96 @@
+/*
+ * Netgear Centria N900 WNDR4700/WNDR4720 platform support
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; version 2 of the License.
+ *
+ * This implemention is based on the simple platform support for the
+ * PowerPC 44x chips.
+ */
+
+#include <asm/machdep.h>
+#include <asm/pci-bridge.h>
+#include <asm/ppc4xx.h>
+#include <asm/prom.h>
+#include <asm/time.h>
+#include <asm/udbg.h>
+#include <asm/uic.h>
+
+#include <linux/init.h>
+#include <linux/of_platform.h>
+#include <linux/pci.h>
+#include <linux/platform_device.h>
+#include <linux/ath9k_platform.h>
+#include <linux/firmware.h>
+#include <linux/delay.h>
+#include <asm/unaligned.h>
+
+static const struct of_device_id ppc44x_of_bus[] __initconst = {
+ { .compatible = "ibm,plb4", },
+ { .compatible = "ibm,opb", },
+ { .compatible = "ibm,ebc", },
+ { .compatible = "simple-bus", },
+ {},
+};
+
+static int __init ppc44x_device_probe(void)
+{
+ of_platform_bus_probe(NULL, ppc44x_of_bus, NULL);
+
+ return 0;
+}
+machine_device_initcall(wndr4700, ppc44x_device_probe);
+
+static char *board[] __initdata = {
+ "netgear,wndr4700",
+};
+
+static int __init ppc44x_probe(void)
+{
+ unsigned long root = of_get_flat_dt_root();
+ int i = 0;
+
+ pcie_bus_config = PCIE_BUS_PEER2PEER; /* force 128 Byte MPS */
+
+ for (i = 0; i < ARRAY_SIZE(board); i++) {
+ if (of_flat_dt_is_compatible(root, board[i])) {
+ pci_set_flags(PCI_REASSIGN_ALL_RSRC); /* PCI_PROBE_ONLY */
+ return 1;
+ }
+ }
+
+ return 0;
+}
+
+define_machine(wndr4700) {
+ .name = "WNDR4700 Platform",
+ .probe = ppc44x_probe,
+ .progress = udbg_progress,
+ .init_IRQ = uic_init_tree,
+ .get_irq = uic_get_irq,
+ .restart = ppc4xx_reset_system,
+ .calibrate_decr = generic_calibrate_decr,
+};
+
+static struct ath9k_platform_data ar9380_wmac0_data = {
+ .led_pin = -1,
+ .eeprom_name = "pci_wmac1.eeprom",
+};
+static struct ath9k_platform_data ar9580_wmac1_data = {
+ .led_pin = -1,
+ .eeprom_name = "pci_wmac0.eeprom",
+};
+
+static void load_eeprom_ar9380(struct pci_dev *dev)
+{
+ dev->dev.platform_data = &ar9380_wmac0_data;
+}
+
+static void load_eeprom_ar9580(struct pci_dev *dev)
+{
+ dev->dev.platform_data = &ar9580_wmac1_data;
+}
+
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATHEROS, 0x0030, load_eeprom_ar9380);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATHEROS, 0x0033, load_eeprom_ar9580);