ARM: spear: convert to MULTI_IRQ_HANDLER

Now that there is a generic IRQ handler for multiple VIC devices use it
for spear to help building multi platform kernels.

Acked-by: Viresh Kumar <viresh.kumar@st.com>
Cc: Rajeev Kumar <rajeev-dlh.kumar@st.com>
Signed-off-by: Jamie Iles <jamie@jamieiles.com>

7 files changed, 9 insertions, 63 deletions

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 8399bad142b1..21fd3bd6a104 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -955,6 +955,7 @@ config PLAT_SPEAR
         select CLKSRC_MMIO
         select GENERIC_CLOCKEVENTS
         select HAVE_CLK
+        select MULTI_IRQ_HANDLER
         help
           Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
 
diff --git a/arch/arm/mach-spear3xx/include/mach/entry-macro.S b/arch/arm/mach-spear3xx/include/mach/entry-macro.S
index 53da4224ba3d..de3bb41c8e9e 100644
--- a/arch/arm/mach-spear3xx/include/mach/entry-macro.S
+++ b/arch/arm/mach-spear3xx/include/mach/entry-macro.S
@@ -11,35 +11,8 @@
  * warranty of any kind, whether express or implied.
  */
 
-#include <asm/hardware/vic.h>
-#include <mach/hardware.h>
-
                 .macro  disable_fiq
                 .endm
 
-                .macro  get_irqnr_preamble, base, tmp
-                .endm
-
                 .macro  arch_ret_to_user, tmp1, tmp2
                 .endm
-
-                .macro  get_irqnr_and_base, irqnr, irqstat, base, tmp
-                ldr     \base, =VA_SPEAR3XX_ML1_VIC_BASE
-                ldr     \irqstat, [\base, #VIC_IRQ_STATUS]      @ get status
-                teq     \irqstat, #0
-                beq     1001f                           @ this will set/reset
-                                                        @ zero register
-                /*
-                 * Following code will find bit position of least significang
-                 * bit set in irqstat, using following equation
-                 * least significant bit set in n = (n & ~(n-1))
-                 */
-                sub     \tmp, \irqstat, #1              @ tmp = irqstat - 1
-                mvn     \tmp, \tmp                      @ tmp = ~tmp
-                and     \irqstat, \irqstat, \tmp        @ irqstat &= tmp
-                /* Now, irqstat is = bit no. of 1st bit set in vic irq status */
-                clz     \tmp, \irqstat                  @ tmp = leading zeros
-                rsb     \irqnr, \tmp, #0x1F             @ irqnr = 32 - tmp - 1
-
-1001:           /* EQ will be set if no irqs pending */
-                .endm
diff --git a/arch/arm/mach-spear3xx/spear300_evb.c b/arch/arm/mach-spear3xx/spear300_evb.c
index a5ff98eed1db..61068ba67923 100644
--- a/arch/arm/mach-spear3xx/spear300_evb.c
+++ b/arch/arm/mach-spear3xx/spear300_evb.c
@@ -11,6 +11,7 @@
  * warranty of any kind, whether express or implied.
  */
 
+#include <asm/hardware/vic.h>
 #include <asm/mach/arch.h>
 #include <asm/mach-types.h>
 #include <mach/generic.h>
@@ -67,6 +68,7 @@ MACHINE_START(SPEAR300, "ST-SPEAR300-EVB")
         .atag_offset    =       0x100,
         .map_io         =       spear3xx_map_io,
         .init_irq       =       spear3xx_init_irq,
+        .handle_irq     =       vic_handle_irq,
         .timer          =       &spear3xx_timer,
         .init_machine   =       spear300_evb_init,
 MACHINE_END
diff --git a/arch/arm/mach-spear3xx/spear310_evb.c b/arch/arm/mach-spear3xx/spear310_evb.c
index 45d180d59362..7903abe92bf6 100644
--- a/arch/arm/mach-spear3xx/spear310_evb.c
+++ b/arch/arm/mach-spear3xx/spear310_evb.c
@@ -11,6 +11,7 @@
  * warranty of any kind, whether express or implied.
  */
 
+#include <asm/hardware/vic.h>
 #include <asm/mach/arch.h>
 #include <asm/mach-types.h>
 #include <mach/generic.h>
@@ -73,6 +74,7 @@ MACHINE_START(SPEAR310, "ST-SPEAR310-EVB")
         .atag_offset    =       0x100,
         .map_io         =       spear3xx_map_io,
         .init_irq       =       spear3xx_init_irq,
+        .handle_irq     =       vic_handle_irq,
         .timer          =       &spear3xx_timer,
         .init_machine   =       spear310_evb_init,
 MACHINE_END
diff --git a/arch/arm/mach-spear3xx/spear320_evb.c b/arch/arm/mach-spear3xx/spear320_evb.c
index 22879848d73a..e9751f970933 100644
--- a/arch/arm/mach-spear3xx/spear320_evb.c
+++ b/arch/arm/mach-spear3xx/spear320_evb.c
@@ -11,6 +11,7 @@
  * warranty of any kind, whether express or implied.
  */
 
+#include <asm/hardware/vic.h>
 #include <asm/mach/arch.h>
 #include <asm/mach-types.h>
 #include <mach/generic.h>
@@ -71,6 +72,7 @@ MACHINE_START(SPEAR320, "ST-SPEAR320-EVB")
         .atag_offset    =       0x100,
         .map_io         =       spear3xx_map_io,
         .init_irq       =       spear3xx_init_irq,
+        .handle_irq     =       vic_handle_irq,
         .timer          =       &spear3xx_timer,
         .init_machine   =       spear320_evb_init,
 MACHINE_END
diff --git a/arch/arm/mach-spear6xx/include/mach/entry-macro.S b/arch/arm/mach-spear6xx/include/mach/entry-macro.S
index 8a0b0ed7b203..d490a910d925 100644
--- a/arch/arm/mach-spear6xx/include/mach/entry-macro.S
+++ b/arch/arm/mach-spear6xx/include/mach/entry-macro.S
@@ -11,44 +11,8 @@
  * warranty of any kind, whether express or implied.
  */
 
-#include <asm/hardware/vic.h>
-#include <mach/hardware.h>
-
                 .macro  disable_fiq
                 .endm
 
-                .macro  get_irqnr_preamble, base, tmp
-                .endm
-
                 .macro  arch_ret_to_user, tmp1, tmp2
                 .endm
-
-                .macro  get_irqnr_and_base, irqnr, irqstat, base, tmp
-                ldr     \base, =VA_SPEAR6XX_CPU_VIC_PRI_BASE
-                ldr     \irqstat, [\base, #VIC_IRQ_STATUS]      @ get status
-                mov     \irqnr, #0
-                teq     \irqstat, #0
-                bne     1001f
-                ldr     \base, =VA_SPEAR6XX_CPU_VIC_SEC_BASE
-                ldr     \irqstat, [\base, #VIC_IRQ_STATUS]      @ get status
-                teq     \irqstat, #0
-                beq     1002f                           @ this will set/reset
-                                                        @ zero register
-                mov     \irqnr, #32
-1001:
-                /*
-                 * Following code will find bit position of least significang
-                 * bit set in irqstat, using following equation
-                 * least significant bit set in n = (n & ~(n-1))
-                 */
-                sub     \tmp, \irqstat, #1              @ tmp = irqstat - 1
-                mvn     \tmp, \tmp                      @ tmp = ~tmp
-                and     \irqstat, \irqstat, \tmp        @ irqstat &= tmp
-                /* Now, irqstat is = bit no. of 1st bit set in vic irq status */
-                clz     \tmp, \irqstat                  @ tmp = leading zeros
-
-                rsb     \tmp, \tmp, #0x1F               @ tmp = 32 - tmp - 1
-                add     \irqnr, \irqnr, \tmp
-
-1002:           /* EQ will be set if no irqs pending */
-                .endm
diff --git a/arch/arm/mach-spear6xx/spear600_evb.c b/arch/arm/mach-spear6xx/spear600_evb.c
index 8238fe38e713..ff139ed0a61e 100644
--- a/arch/arm/mach-spear6xx/spear600_evb.c
+++ b/arch/arm/mach-spear6xx/spear600_evb.c
@@ -11,6 +11,7 @@
  * warranty of any kind, whether express or implied.
  */
 
+#include <asm/hardware/vic.h>
 #include <asm/mach/arch.h>
 #include <asm/mach-types.h>
 #include <mach/generic.h>
@@ -46,6 +47,7 @@ MACHINE_START(SPEAR600, "ST-SPEAR600-EVB")
         .atag_offset    =       0x100,
         .map_io         =       spear6xx_map_io,
         .init_irq       =       spear6xx_init_irq,
+        .handle_irq     =       vic_handle_irq,
         .timer          =       &spear6xx_timer,
         .init_machine   =       spear600_evb_init,
 MACHINE_END