mpc85xx: add support for Enterasys WS-AP3710i

Hardware
--------

SoC:   NXP P1020 (2x e500 @ 800MHz)
RAM:   256M DDR3 (Micron)
FLASH: 32M NOR (Spansion S29GL128S)
BTN:   1x Reset
WiFi:  1x Atheros AR9590 2.4 bgn 3x3
       2x Atheros AR9590 5.0 an 3x3
ETH:   1x Gigabit Ethernet (Atheros AR8033)
LED:   System (green/red) - Radio{0,1} (green)
       LAN (connected to PHY)
        - GE blue
        - FE green

Serial is a Cisco-compatible RJ45 next to the ethernet port.
115200-N-8 are the settings for OS and U-Boot.

Installation
------------

1. Grab the OpenWrt initramfs, rename it to 01C8A8C0.img. Place it in
   the root directory of a TFTP server and serve it at
   192.168.200.200/24.

2. Connect to the serial port and boot the AP. Stop autoboot in U-Boot
   by pressing Enter when prompted. Credentials are identical to the one
   in the APs interface. By default it is admin / new2day.

3. Set the bootcmd so the AP can boot OpenWrt by executing

   $ setenv boot_openwrt "setenv bootargs;
     cp.b 0xee000000 0x1000000 0x1000000; bootm 0x1000000"
   $ setenv bootcmd "run boot_openwrt"
   $ saveenv

   If you plan on going back to the vendor firmware - the bootcmd for it
   is stored in the boot_flash variable.

4. Load the initramfs image to RAM and boot by executing

   $ tftpboot 0x1000000 192.168.200.200:01C8A8C0.img; bootm

5. Make a backup of the "firmware" partition if you ever wish to go back
   to the vendor firmware.

6. Upload the OpenWrt sysupgrade image via SCP to the devices /tmp
   folder.

7. Flash OpenWrt using sysupgrade.

   $ sysupgrade -n /tmp/openwrt-sysupgrade.bin

Signed-off-by: David Bauer <mail@david-bauer.net>

1 files changed, 91 insertions, 0 deletions

diff --git a/target/linux/mpc85xx/files/arch/powerpc/platforms/85xx/ws-ap3710i.c b/target/linux/mpc85xx/files/arch/powerpc/platforms/85xx/ws-ap3710i.c
new file mode 100644
index 0000000000..a2900868b9
--- /dev/null
+++ b/target/linux/mpc85xx/files/arch/powerpc/platforms/85xx/ws-ap3710i.c
@@ -0,0 +1,91 @@
+// SPDX-License-Identifier: GPL-2.0+
+
+/*
+ * Enterasys WS-AP3710i Board Setup
+ *
+ * Copyright (C) 2019 David Bauer <mail@david-bauer.net>
+ *
+ * Based on:
+ *   mpc85xx_rdb.c:
+ *      MPC85xx RDB Board Setup
+ *      Copyright 2013 Freescale Semiconductor Inc.
+ *
+ * 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;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/stddef.h>
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/of_platform.h>
+
+#include <asm/time.h>
+#include <asm/machdep.h>
+#include <asm/pci-bridge.h>
+#include <mm/mmu_decl.h>
+#include <asm/prom.h>
+#include <asm/udbg.h>
+#include <asm/mpic.h>
+
+#include <sysdev/fsl_soc.h>
+#include <sysdev/fsl_pci.h>
+#include "smp.h"
+
+#include "mpc85xx.h"
+
+void __init ws_ap3710i_pic_init(void)
+{
+	struct mpic *mpic;
+
+	mpic = mpic_alloc(NULL, 0,
+	  MPIC_BIG_ENDIAN |
+	  MPIC_SINGLE_DEST_CPU,
+	  0, 256, " OpenPIC  ");
+
+	BUG_ON(mpic == NULL);
+	mpic_init(mpic);
+}
+
+/*
+ * Setup the architecture
+ */
+static void __init ws_ap3710i_setup_arch(void)
+{
+	if (ppc_md.progress)
+		ppc_md.progress("ws_ap3710i_setup_arch()", 0);
+
+	mpc85xx_smp_init();
+
+	fsl_pci_assign_primary();
+
+	pr_info("WS-AP3710i board from Enterasys\n");
+}
+
+machine_arch_initcall(ws_ap3710i, mpc85xx_common_publish_devices);
+
+/*
+ * Called very early, device-tree isn't unflattened
+ */
+static int __init ws_ap3710i_probe(void)
+{
+	if (of_machine_is_compatible("enterasys,ws-ap3710i"))
+		return 1;
+	return 0;
+}
+
+define_machine(ws_ap3710i) {
+	.name			= "P1020 RDB",
+	.probe			= ws_ap3710i_probe,
+	.setup_arch		= ws_ap3710i_setup_arch,
+	.init_IRQ		= ws_ap3710i_pic_init,
+#ifdef CONFIG_PCI
+	.pcibios_fixup_bus	= fsl_pcibios_fixup_bus,
+	.pcibios_fixup_phb      = fsl_pcibios_fixup_phb,
+#endif
+	.get_irq		= mpic_get_irq,
+	.calibrate_decr		= generic_calibrate_decr,
+	.progress		= udbg_progress,
+};