From 97493e2e9eeddfecaca741454f97a689d8141dcf Mon Sep 17 00:00:00 2001 From: Alessio Igor Bogani Date: Mon, 30 May 2016 11:47:16 +0200 Subject: powerpc/86xx: Add support for Emerson/Artesyn MVME7100 Add support for the Artesyn MVME7100 Single Board Computer. The MVME7100 is a 6U form factor VME64 computer with: - A two e600 cores Freescale MPC8641D CPU - 2 GB of DDR2 onboard memory - Four Gigabit Ethernets - Five 16550 compatible UARTs - One USB 2.0 port - Two PCI/PCI eXpress Mezzanine Card (PMC/XMC) Slots - A DS1375 Real Time Clock (RTC) - 512 KB of Non-Volatile Memory (NVRAM) - Two 64 KB EEPROMs - 128 MB NOR and 4/8 GB NAND Flash This patch is based on linux-4.7-rc1 and has been only boot tested. Limitations: This patch covers only models 171 and 173 No plans to support CPLD timers Know issues: All four PHYs work in polling mode Configuration is missing for: PCI IDSEL and PCI Interrupt definition Support is missing for: Cache and memory controllers (which are very similar to the 85xx ones but right now I don't know if we can re-use their support) Watchdog, USB, NVRAM, NOR, NAND, EEPROMs, VME, PMC/XMC and RTC Signed-off-by: Alessio Igor Bogani Signed-off-by: Scott Wood --- arch/powerpc/boot/mvme7100.c | 59 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 59 insertions(+) create mode 100644 arch/powerpc/boot/mvme7100.c (limited to 'arch/powerpc/boot/mvme7100.c') diff --git a/arch/powerpc/boot/mvme7100.c b/arch/powerpc/boot/mvme7100.c new file mode 100644 index 000000000000..8b0a932311af --- /dev/null +++ b/arch/powerpc/boot/mvme7100.c @@ -0,0 +1,59 @@ +/* + * Motload compatibility for the Emerson/Artesyn MVME7100 + * + * Copyright 2016 Elettra-Sincrotrone Trieste S.C.p.A. + * + * Author: Alessio Igor Bogani + * + * 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 "ops.h" +#include "stdio.h" +#include "cuboot.h" + +#define TARGET_86xx +#define TARGET_HAS_ETH1 +#define TARGET_HAS_ETH2 +#define TARGET_HAS_ETH3 +#include "ppcboot.h" + +static bd_t bd; + +BSS_STACK(16384); + +static void mvme7100_fixups(void) +{ + void *devp; + unsigned long busfreq = bd.bi_busfreq * 1000000; + + dt_fixup_cpu_clocks(bd.bi_intfreq * 1000000, busfreq / 4, busfreq); + + devp = finddevice("/soc@f1000000"); + if (devp) + setprop(devp, "bus-frequency", &busfreq, sizeof(busfreq)); + + devp = finddevice("/soc/serial@4500"); + if (devp) + setprop(devp, "clock-frequency", &busfreq, sizeof(busfreq)); + + dt_fixup_memory(bd.bi_memstart, bd.bi_memsize); + + dt_fixup_mac_address_by_alias("ethernet0", bd.bi_enetaddr); + dt_fixup_mac_address_by_alias("ethernet1", bd.bi_enet1addr); + dt_fixup_mac_address_by_alias("ethernet2", bd.bi_enet2addr); + dt_fixup_mac_address_by_alias("ethernet3", bd.bi_enet3addr); +} + +void platform_init(unsigned long r3, unsigned long r4, unsigned long r5, + unsigned long r6, unsigned long r7) +{ + CUBOOT_INIT(); + fdt_init(_dtb_start); + serial_console_init(); + platform_ops.fixups = mvme7100_fixups; +} -- cgit v1.2.1