forked from Minki/linux
5c69766485
This commit switches the Orion5x Device Tree files to use the DT
representation and probing for the mvebu-mbus driver. The changes are
mainly:
* Re-organize the DT to follow the same organization as the one used
on Armada 370/XP, which is needed for mvebu-mbus to work: a
top-level soc { ... } node, which corresponds to the MBus bus, and
a sub-node internal-regs { ... } for all peripherals whose register
sit only in the "Internal Register Window". This change re-indents
by one level the definition of all nodes in the Device Tree, which
explains the large change.
* Use custom functions orion5x_dt_init_early() and
orion5x_dt_init_time() instead of orion5x_init_early() and
orion5x_timer_init() as we now want the MBus driver to be probed
from the Device Tree. We still use the old-style timer
initialization, but that will be changed in a followup commit.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Link: https://lkml.kernel.org/r/1398202002-28530-14-git-send-email-thomas.petazzoni@free-electrons.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
97 lines
2.5 KiB
C
97 lines
2.5 KiB
C
/*
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* Copyright 2012 (C), Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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*
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* arch/arm/mach-orion5x/board-dt.c
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*
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* Flattened Device Tree board initialization
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*
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* This file is licensed under the terms of the GNU General Public
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* License version 2. This program is licensed "as is" without any
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* warranty of any kind, whether express or implied.
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/of.h>
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#include <linux/of_platform.h>
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#include <linux/cpu.h>
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#include <linux/mbus.h>
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#include <asm/system_misc.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/map.h>
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#include <mach/orion5x.h>
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#include <mach/bridge-regs.h>
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#include <plat/irq.h>
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#include <plat/time.h>
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#include "common.h"
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static struct of_dev_auxdata orion5x_auxdata_lookup[] __initdata = {
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OF_DEV_AUXDATA("marvell,orion-spi", 0xf1010600, "orion_spi.0", NULL),
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OF_DEV_AUXDATA("marvell,mv64xxx-i2c", 0xf1011000, "mv64xxx_i2c.0",
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NULL),
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OF_DEV_AUXDATA("marvell,orion-wdt", 0xf1020300, "orion_wdt", NULL),
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OF_DEV_AUXDATA("marvell,orion-sata", 0xf1080000, "sata_mv.0", NULL),
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OF_DEV_AUXDATA("marvell,orion-crypto", 0xf1090000, "mv_crypto", NULL),
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{},
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};
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static void orion5x_dt_init_early(void)
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{
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orion_time_set_base(TIMER_VIRT_BASE);
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}
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static void orion5x_dt_init_time(void)
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{
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orion5x_timer_init();
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}
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static void __init orion5x_dt_init(void)
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{
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char *dev_name;
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u32 dev, rev;
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orion5x_id(&dev, &rev, &dev_name);
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printk(KERN_INFO "Orion ID: %s. TCLK=%d.\n", dev_name, orion5x_tclk);
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BUG_ON(mvebu_mbus_dt_init());
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/*
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* Setup Orion address map
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*/
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orion5x_setup_wins();
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/* Setup root of clk tree */
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clk_init();
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/*
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* Don't issue "Wait for Interrupt" instruction if we are
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* running on D0 5281 silicon.
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*/
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if (dev == MV88F5281_DEV_ID && rev == MV88F5281_REV_D0) {
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printk(KERN_INFO "Orion: Applying 5281 D0 WFI workaround.\n");
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cpu_idle_poll_ctrl(true);
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}
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if (of_machine_is_compatible("lacie,ethernet-disk-mini-v2"))
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edmini_v2_init();
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of_platform_populate(NULL, of_default_bus_match_table,
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orion5x_auxdata_lookup, NULL);
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}
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static const char *orion5x_dt_compat[] = {
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"marvell,orion5x",
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NULL,
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};
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DT_MACHINE_START(ORION5X_DT, "Marvell Orion5x (Flattened Device Tree)")
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/* Maintainer: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> */
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.map_io = orion5x_map_io,
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.init_early = orion5x_dt_init_early,
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.init_irq = orion_dt_init_irq,
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.init_time = orion5x_dt_init_time,
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.init_machine = orion5x_dt_init,
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.restart = orion5x_restart,
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.dt_compat = orion5x_dt_compat,
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MACHINE_END
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