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MIPS: Malta: Probe CPC when supported 

When CPC support is compiled into the kernel (ie. CONFIG_MIPS_CPC=y),
probe the CPC on boot for Malta in order to allow any users of the CPC
to detect its presence & function correctly.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/6363/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Paul Burton 2014-01-15 10:31:55 +00:00 committed by Ralf Baechle
parent 237036de65
commit 7dc2834fd5
2 changed files with 12 additions and 0 deletions
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5
arch/mips/include/asm/mips-boards/malta.h
View File

@ -63,6 +63,11 @@ static inline unsigned long get_msc_port_base(unsigned long reg)
#define GIC_BASE_ADDR 0x1bdc0000 #define GIC_BASE_ADDR 0x1bdc0000
#define GIC_ADDRSPACE_SZ (128 * 1024) #define GIC_ADDRSPACE_SZ (128 * 1024)
/*
* CPC Specific definitions
*/
#define CPC_BASE_ADDR 0x1bde0000
/* /*
* MSC01 BIU Specific definitions * MSC01 BIU Specific definitions
* FIXME : These should be elsewhere ? * FIXME : These should be elsewhere ?

7
arch/mips/mti-malta/malta-init.c
View File

@ -21,6 +21,7 @@
#include <asm/traps.h> #include <asm/traps.h>
#include <asm/fw/fw.h> #include <asm/fw/fw.h>
#include <asm/mips-cm.h> #include <asm/mips-cm.h>
#include <asm/mips-cpc.h>
#include <asm/mips-boards/generic.h> #include <asm/mips-boards/generic.h>
#include <asm/mips-boards/malta.h> #include <asm/mips-boards/malta.h>
@ -110,6 +111,11 @@ static void __init mips_ejtag_setup(void)
flush_icache_range((unsigned long)base, (unsigned long)base + 0x80); flush_icache_range((unsigned long)base, (unsigned long)base + 0x80);
} }
phys_t mips_cpc_default_phys_base(void)
{
return CPC_BASE_ADDR;
}
extern struct plat_smp_ops msmtc_smp_ops; extern struct plat_smp_ops msmtc_smp_ops;
void __init prom_init(void) void __init prom_init(void)
@ -277,6 +283,7 @@ mips_pci_controller:
#endif #endif
/* Early detection of CMP support */ /* Early detection of CMP support */
mips_cm_probe(); mips_cm_probe();
mips_cpc_probe();
if (!register_cmp_smp_ops()) if (!register_cmp_smp_ops())
return; return;