mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-29 07:04:10 +08:00
e33369cbf3
In preparation for moving the IRQ controller driver to drivers/irqchip/, we don't want the IRQ controller driver to be responsible for initializing the L2 cache. Instead, let's initialize the L2 cache at the init_early() level, like mach-exynos/common.c is doing. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Tested-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
86 lines
2.2 KiB
C
86 lines
2.2 KiB
C
/*
|
|
* Device Tree support for Armada 370 and XP platforms.
|
|
*
|
|
* Copyright (C) 2012 Marvell
|
|
*
|
|
* Lior Amsalem <alior@marvell.com>
|
|
* Gregory CLEMENT <gregory.clement@free-electrons.com>
|
|
* Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
|
|
*
|
|
* This file is licensed under the terms of the GNU General Public
|
|
* License version 2. This program is licensed "as is" without any
|
|
* warranty of any kind, whether express or implied.
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/init.h>
|
|
#include <linux/of_platform.h>
|
|
#include <linux/io.h>
|
|
#include <linux/time-armada-370-xp.h>
|
|
#include <linux/clk/mvebu.h>
|
|
#include <linux/dma-mapping.h>
|
|
#include <asm/hardware/cache-l2x0.h>
|
|
#include <asm/mach/arch.h>
|
|
#include <asm/mach/map.h>
|
|
#include <asm/mach/time.h>
|
|
#include "armada-370-xp.h"
|
|
#include "common.h"
|
|
#include "coherency.h"
|
|
|
|
static struct map_desc armada_370_xp_io_desc[] __initdata = {
|
|
{
|
|
.virtual = (unsigned long) ARMADA_370_XP_REGS_VIRT_BASE,
|
|
.pfn = __phys_to_pfn(ARMADA_370_XP_REGS_PHYS_BASE),
|
|
.length = ARMADA_370_XP_REGS_SIZE,
|
|
.type = MT_DEVICE,
|
|
},
|
|
};
|
|
|
|
void __init armada_370_xp_map_io(void)
|
|
{
|
|
iotable_init(armada_370_xp_io_desc, ARRAY_SIZE(armada_370_xp_io_desc));
|
|
}
|
|
|
|
void __init armada_370_xp_timer_and_clk_init(void)
|
|
{
|
|
mvebu_clocks_init();
|
|
armada_370_xp_timer_init();
|
|
}
|
|
|
|
void __init armada_370_xp_init_early(void)
|
|
{
|
|
/*
|
|
* Some Armada 370/XP devices allocate their coherent buffers
|
|
* from atomic context. Increase size of atomic coherent pool
|
|
* to make sure such the allocations won't fail.
|
|
*/
|
|
init_dma_coherent_pool_size(SZ_1M);
|
|
|
|
#ifdef CONFIG_CACHE_L2X0
|
|
l2x0_of_init(0, ~0UL);
|
|
#endif
|
|
}
|
|
|
|
static void __init armada_370_xp_dt_init(void)
|
|
{
|
|
of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
|
|
coherency_init();
|
|
}
|
|
|
|
static const char * const armada_370_xp_dt_compat[] = {
|
|
"marvell,armada-370-xp",
|
|
NULL,
|
|
};
|
|
|
|
DT_MACHINE_START(ARMADA_XP_DT, "Marvell Armada 370/XP (Device Tree)")
|
|
.smp = smp_ops(armada_xp_smp_ops),
|
|
.init_machine = armada_370_xp_dt_init,
|
|
.map_io = armada_370_xp_map_io,
|
|
.init_early = armada_370_xp_init_early,
|
|
.init_irq = armada_370_xp_init_irq,
|
|
.handle_irq = armada_370_xp_handle_irq,
|
|
.init_time = armada_370_xp_timer_and_clk_init,
|
|
.restart = mvebu_restart,
|
|
.dt_compat = armada_370_xp_dt_compat,
|
|
MACHINE_END
|