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ARM: mvebu: Remove the harcoded BootROM window allocation

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The address decoding window to access the BootROM should not be
allocated programatically, but instead declared in the device tree.

Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
This commit is contained in:
Ezequiel Garcia 2013-07-26 10:17:54 -03:00 committed by Jason Cooper
parent 59cb2fc6f9
commit 994c8c94b4
1 changed files with 24 additions and 1 deletions
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25
arch/arm/mach-mvebu/platsmp.c
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@ -21,6 +21,7 @@
#include <linux/smp.h>
#include <linux/clk.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/mbus.h>
#include <asm/cacheflush.h>
#include <asm/smp_plat.h>
@ -29,6 +30,9 @@
#include "pmsu.h"
#include "coherency.h"
#define AXP_BOOTROM_BASE 0xfff00000
#define AXP_BOOTROM_SIZE 0x100000
void __init set_secondary_cpus_clock(void)
{
int thiscpu;
@ -115,10 +119,29 @@ static void __init armada_xp_smp_init_cpus(void)
void __init armada_xp_smp_prepare_cpus(unsigned int max_cpus)
{
struct device_node *node;
struct resource res;
int err;
set_secondary_cpus_clock();
flush_cache_all();
set_cpu_coherent(cpu_logical_map(smp_processor_id()), 0);
mvebu_mbus_add_window("bootrom", 0xfff00000, SZ_1M);
/*
* In order to boot the secondary CPUs we need to ensure
* the bootROM is mapped at the correct address.
*/
node = of_find_compatible_node(NULL, NULL, "marvell,bootrom");
if (!node)
panic("Cannot find 'marvell,bootrom' compatible node");
err = of_address_to_resource(node, 0, &res);
if (err < 0)
panic("Cannot get 'bootrom' node address");
if (res.start != AXP_BOOTROM_BASE ||
resource_size(&res) != AXP_BOOTROM_SIZE)
panic("The address for the BootROM is incorrect");
}
struct smp_operations armada_xp_smp_ops __initdata = {