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authorDaniel Hellstrom <daniel@gaisler.com>2011-01-04 04:41:30 +0300
committerDavid S. Miller <davem@davemloft.net>2011-01-04 22:16:36 +0300
commite2305e37d4c82ef55be54e9edc8a7e2250739b4f (patch)
treee3db48384802210c241ea3450841a78b82620afd /arch/sparc/include
parent53aea7caf2e27108912b9b9dbc5bfe18dbbaec9d (diff)
downloadlinux-e2305e37d4c82ef55be54e9edc8a7e2250739b4f.tar.xz
SPARC/LEON: added support for IRQAMP IRQ Controller
Needed for LEON AMP systems where different CPUs are routed to different IRQ controllers. This patch selects the IRQ Controller which has been routed to the boot CPU, it is up to the boot loader to configure the IRQ controller. Signed-off-by: Daniel Hellstrom <daniel@gaisler.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc/include')
-rw-r--r--arch/sparc/include/asm/leon.h12
-rw-r--r--arch/sparc/include/asm/leon_amba.h6
2 files changed, 15 insertions, 3 deletions
diff --git a/arch/sparc/include/asm/leon.h b/arch/sparc/include/asm/leon.h
index 3ea5964c43b4..8580d1764f90 100644
--- a/arch/sparc/include/asm/leon.h
+++ b/arch/sparc/include/asm/leon.h
@@ -224,6 +224,18 @@ static inline void sparc_leon3_disable_cache(void)
"sta %%l2, [%%g0] 2\n\t" : : : "l1", "l2");
};
+static inline unsigned long sparc_leon3_asr17(void)
+{
+ u32 asr17;
+ __asm__ __volatile__ ("rd %%asr17, %0\n\t" : "=r"(asr17));
+ return asr17;
+};
+
+static inline int sparc_leon3_cpuid(void)
+{
+ return sparc_leon3_asr17() >> 28;
+}
+
#endif /*!__ASSEMBLY__*/
#ifdef CONFIG_SMP
diff --git a/arch/sparc/include/asm/leon_amba.h b/arch/sparc/include/asm/leon_amba.h
index 618e88821795..263c719e96f5 100644
--- a/arch/sparc/include/asm/leon_amba.h
+++ b/arch/sparc/include/asm/leon_amba.h
@@ -100,9 +100,8 @@ struct leon3_irqctrl_regs_map {
u32 mpbroadcast;
u32 notused02;
u32 notused03;
- u32 notused10;
- u32 notused11;
- u32 notused12;
+ u32 ampctrl;
+ u32 icsel[2];
u32 notused13;
u32 notused20;
u32 notused21;
@@ -112,6 +111,7 @@ struct leon3_irqctrl_regs_map {
u32 force[16];
/* Extended IRQ registers */
u32 intid[16]; /* 0xc0 */
+ u32 unused[(0x1000-0x100)/4];
};
struct leon3_apbuart_regs_map {