arm: socfpga: Add SMP support for actual socfpga harware

Because the CPU1 start address is different for socfpga-vt and
socfpga-cyclone5, we add code to use the correct CPU1 start addr.

Signed-off-by: Dinh Nguyen <dinguyen@altera.com>
Signed-off-by: Pavel Machek <pavel@denx.de>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Olof Johansson <olof@lixom.net>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Olof Johansson <olof@lixom.net>

1 files changed, 6 insertions, 0 deletions

diff --git a/arch/arm/mach-socfpga/socfpga.c b/arch/arm/mach-socfpga/socfpga.c
index 94aa6add6443..cec126679ec3 100644
--- a/arch/arm/mach-socfpga/socfpga.c
+++ b/arch/arm/mach-socfpga/socfpga.c
@@ -29,6 +29,7 @@
 void __iomem *socfpga_scu_base_addr = ((void __iomem *)(SOCFPGA_SCU_VIRT_BASE));
 void __iomem *sys_manager_base_addr;
 void __iomem *rst_manager_base_addr;
+unsigned long cpu1start_addr;
 
 static struct map_desc scu_io_desc __initdata = {
         .virtual        = SOCFPGA_SCU_VIRT_BASE,
@@ -72,6 +73,11 @@ void __init socfpga_sysmgr_init(void)
         struct device_node *np;
 
         np = of_find_compatible_node(NULL, NULL, "altr,sys-mgr");
+
+        if (of_property_read_u32(np, "cpu1-start-addr",
+                        (u32 *) &cpu1start_addr))
+                pr_err("SMP: Need cpu1-start-addr in device tree.\n");
+
         sys_manager_base_addr = of_iomap(np, 0);
 
         np = of_find_compatible_node(NULL, NULL, "altr,rst-mgr");