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-rw-r--r--arch/arm/mach-mvebu/platsmp.c25
1 files changed, 24 insertions, 1 deletions
diff --git a/arch/arm/mach-mvebu/platsmp.c b/arch/arm/mach-mvebu/platsmp.c
index ce81d3031405..c6b00fce6d8d 100644
--- a/arch/arm/mach-mvebu/platsmp.c
+++ b/arch/arm/mach-mvebu/platsmp.c
@@ -21,6 +21,7 @@
21#include <linux/smp.h> 21#include <linux/smp.h>
22#include <linux/clk.h> 22#include <linux/clk.h>
23#include <linux/of.h> 23#include <linux/of.h>
24#include <linux/of_address.h>
24#include <linux/mbus.h> 25#include <linux/mbus.h>
25#include <asm/cacheflush.h> 26#include <asm/cacheflush.h>
26#include <asm/smp_plat.h> 27#include <asm/smp_plat.h>
@@ -29,6 +30,9 @@
29#include "pmsu.h" 30#include "pmsu.h"
30#include "coherency.h" 31#include "coherency.h"
31 32
33#define AXP_BOOTROM_BASE 0xfff00000
34#define AXP_BOOTROM_SIZE 0x100000
35
32void __init set_secondary_cpus_clock(void) 36void __init set_secondary_cpus_clock(void)
33{ 37{
34 int thiscpu; 38 int thiscpu;
@@ -114,10 +118,29 @@ static void __init armada_xp_smp_init_cpus(void)
114 118
115void __init armada_xp_smp_prepare_cpus(unsigned int max_cpus) 119void __init armada_xp_smp_prepare_cpus(unsigned int max_cpus)
116{ 120{
121 struct device_node *node;
122 struct resource res;
123 int err;
124
117 set_secondary_cpus_clock(); 125 set_secondary_cpus_clock();
118 flush_cache_all(); 126 flush_cache_all();
119 set_cpu_coherent(cpu_logical_map(smp_processor_id()), 0); 127 set_cpu_coherent(cpu_logical_map(smp_processor_id()), 0);
120 mvebu_mbus_add_window("bootrom", 0xfff00000, SZ_1M); 128
129 /*
130 * In order to boot the secondary CPUs we need to ensure
131 * the bootROM is mapped at the correct address.
132 */
133 node = of_find_compatible_node(NULL, NULL, "marvell,bootrom");
134 if (!node)
135 panic("Cannot find 'marvell,bootrom' compatible node");
136
137 err = of_address_to_resource(node, 0, &res);
138 if (err < 0)
139 panic("Cannot get 'bootrom' node address");
140
141 if (res.start != AXP_BOOTROM_BASE ||
142 resource_size(&res) != AXP_BOOTROM_SIZE)
143 panic("The address for the BootROM is incorrect");
121} 144}
122 145
123struct smp_operations armada_xp_smp_ops __initdata = { 146struct smp_operations armada_xp_smp_ops __initdata = {