Merge branch 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6

* 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6: (214 commits)
  omap2: Initialize Menelaus and MMC for N8X0
  AM3517 EVM: correct typo - tca6416 mispelt as tca6516
  AM3517 EVM: Enable I2C support
  AM35x: Enable OMAP_MUX in defconfig
  AM35x: Add missing GPIO mux config for EHCI port
  Zoom3: Defconfig update
  omap: i2c: Fix muxing for command line enabled bus
  OMAP4: clock: Remove clock hacks from timer-gp.c
  OMAP4: clock: Add dummy clock nodes for interface clocks
  OMAP4: clock: Rename leaf clock nodes to end with a _ick or _fck
  OMAP2+ clock: revise omap2_clk_{disable,enable}()
  OMAP2/3 clock: combine OMAP2 & 3 boot-time MPU rate change code
  OMAP clockdomain: if no autodeps exist, don't try to add or remove them
  OMAP hwmod: add hwmod class support
  OMAP hwmod: convert header files with static allocations into C files
  OMAP hwmod: convert hwmod to use hardware clock names rather than clkdev dev+con
  OMAP clock: add omap_clk_get_by_name() for use by OMAP hwmod core code
  OMAP3: clock: add capability to change rate of dpll4_m5_ck_3630
  OMAP4 clock: drop the ALWAYS_ENABLED clock flag
  OMAP clock: drop RATE_FIXED clock flag
  ...

1 files changed, 108 insertions, 20 deletions

diff --git a/arch/arm/mach-omap2/include/mach/entry-macro.S b/arch/arm/mach-omap2/include/mach/entry-macro.S
index c7f1720bf28..ff25c7e4e60 100644
--- a/arch/arm/mach-omap2/include/mach/entry-macro.S
+++ b/arch/arm/mach-omap2/include/mach/entry-macro.S
@@ -17,46 +17,134 @@
 
 #include <plat/omap24xx.h>
 #include <plat/omap34xx.h>
-
-/* REVISIT: This should be set dynamically if CONFIG_MULTI_OMAP2 is selected */
-#if defined(CONFIG_ARCH_OMAP2420) || defined(CONFIG_ARCH_OMAP2430)
-#define OMAP2_VA_IC_BASE		OMAP2_L4_IO_ADDRESS(OMAP24XX_IC_BASE)
-#elif defined(CONFIG_ARCH_OMAP34XX)
-#define OMAP2_VA_IC_BASE		OMAP2_L4_IO_ADDRESS(OMAP34XX_IC_BASE)
-#endif
-#if defined(CONFIG_ARCH_OMAP4)
 #include <plat/omap44xx.h>
-#endif
-#define INTCPS_SIR_IRQ_OFFSET	0x0040		/* Active interrupt offset */
-#define	ACTIVEIRQ_MASK		0x7f		/* Active interrupt bits */
+
+#include <plat/multi.h>
+
+#define OMAP2_IRQ_BASE		OMAP2_L4_IO_ADDRESS(OMAP24XX_IC_BASE)
+#define OMAP3_IRQ_BASE		OMAP2_L4_IO_ADDRESS(OMAP34XX_IC_BASE)
+#define OMAP4_IRQ_BASE		OMAP2_L4_IO_ADDRESS(OMAP44XX_GIC_CPU_BASE)
+#define INTCPS_SIR_IRQ_OFFSET	0x0040	/* omap2/3 active interrupt offset */
+#define	ACTIVEIRQ_MASK		0x7f	/* omap2/3 active interrupt bits */
 
 		.macro	disable_fiq
 		.endm
 
-		.macro  get_irqnr_preamble, base, tmp
+		.macro  arch_ret_to_user, tmp1, tmp2
 		.endm
 
-		.macro  arch_ret_to_user, tmp1, tmp2
+/*
+ * Unoptimized irq functions for multi-omap2, 3 and 4
+ */
+
+#ifdef MULTI_OMAP2
+		.pushsection .data
+omap_irq_base:	.word	0
+		.popsection
+
+		/* Configure the interrupt base on the first interrupt */
+		.macro  get_irqnr_preamble, base, tmp
+9:
+		ldr	\base, =omap_irq_base	@ irq base address
+		ldr	\base, [\base, #0]	@ irq base value
+		cmp	\base, #0		@ already configured?
+		bne	9997f			@ nothing to do
+
+		mrc	p15, 0, \tmp, c0, c0, 0	@ get processor revision
+		and	\tmp, \tmp, #0x000f0000	@ only check architecture
+		cmp	\tmp, #0x00060000	@ is v6?
+		beq	2400f			@ found v6 so it's omap24xx
+		mrc	p15, 0, \tmp, c0, c0, 0	@ get processor revision
+		and	\tmp, \tmp, #0x000000f0	@ check cortex 8 or 9
+		cmp	\tmp, #0x00000080	@ cortex A-8?
+		beq	3400f			@ found A-8 so it's omap34xx
+		cmp	\tmp, #0x00000090	@ cortex A-9?
+		beq	4400f			@ found A-9 so it's omap44xx
+2400:		ldr	\base, =OMAP2_IRQ_BASE
+		ldr	\tmp, =omap_irq_base
+		str	\base, [\tmp, #0]
+		b	9b
+3400:		ldr	\base, =OMAP3_IRQ_BASE
+		ldr	\tmp, =omap_irq_base
+		str	\base, [\tmp, #0]
+		b	9b
+4400:		ldr	\base, =OMAP4_IRQ_BASE
+		ldr	\tmp, =omap_irq_base
+		str	\base, [\tmp, #0]
+		b	9b
+9997:
 		.endm
 
-#ifndef CONFIG_ARCH_OMAP4
+		/* Check the pending interrupts. Note that base already set */
 		.macro	get_irqnr_and_base, irqnr, irqstat, base, tmp
-		ldr	\base, =OMAP2_VA_IC_BASE
+		tst	\base, #0x100		@ gic address?
+		bne	4401f			@ found gic
+
+		/* Handle omap2 and omap3 */
 		ldr	\irqnr, [\base, #0x98] /* IRQ pending reg 1 */
 		cmp	\irqnr, #0x0
-		bne	2222f
+		bne	9998f
 		ldr	\irqnr, [\base, #0xb8] /* IRQ pending reg 2 */
 		cmp	\irqnr, #0x0
-		bne	2222f
+		bne	9998f
 		ldr	\irqnr, [\base, #0xd8] /* IRQ pending reg 3 */
 		cmp	\irqnr, #0x0
-2222:
+9998:
 		ldrne	\irqnr, [\base, #INTCPS_SIR_IRQ_OFFSET]
 		and	\irqnr, \irqnr, #ACTIVEIRQ_MASK /* Clear spurious bits */
+		b	9999f
 
+		/* Handle omap4 */
+4401:		ldr     \irqstat, [\base, #GIC_CPU_INTACK]
+		ldr     \tmp, =1021
+		bic     \irqnr, \irqstat, #0x1c00
+		cmp     \irqnr, #29
+		cmpcc   \irqnr, \irqnr
+		cmpne   \irqnr, \tmp
+		cmpcs   \irqnr, \irqnr
+9999:
 		.endm
+
+
+#else	/* MULTI_OMAP2 */
+
+
+/*
+ * Optimized irq functions for omap2, 3 and 4
+ */
+
+#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3)
+		.macro  get_irqnr_preamble, base, tmp
+#ifdef CONFIG_ARCH_OMAP2
+		ldr	\base, =OMAP2_IRQ_BASE
 #else
-#define OMAP44XX_VA_GIC_CPU_BASE	OMAP2_L4_IO_ADDRESS(OMAP44XX_GIC_CPU_BASE)
+		ldr	\base, =OMAP3_IRQ_BASE
+#endif
+		.endm
+
+		/* Check the pending interrupts. Note that base already set */
+		.macro	get_irqnr_and_base, irqnr, irqstat, base, tmp
+		ldr	\irqnr, [\base, #0x98] /* IRQ pending reg 1 */
+		cmp	\irqnr, #0x0
+		bne	9999f
+		ldr	\irqnr, [\base, #0xb8] /* IRQ pending reg 2 */
+		cmp	\irqnr, #0x0
+		bne	9999f
+		ldr	\irqnr, [\base, #0xd8] /* IRQ pending reg 3 */
+		cmp	\irqnr, #0x0
+9999:
+		ldrne	\irqnr, [\base, #INTCPS_SIR_IRQ_OFFSET]
+		and	\irqnr, \irqnr, #ACTIVEIRQ_MASK /* Clear spurious bits */
+
+		.endm
+#endif
+
+
+#ifdef CONFIG_ARCH_OMAP4
+
+		.macro  get_irqnr_preamble, base, tmp
+		ldr     \base, =OMAP4_IRQ_BASE
+		.endm
 
 		/*
 		 * The interrupt numbering scheme is defined in the
@@ -78,7 +166,6 @@
 		 * valid range for an IRQ (30-1020 inclusive).
 		 */
 		.macro  get_irqnr_and_base, irqnr, irqstat, base, tmp
-		ldr     \base, =OMAP44XX_VA_GIC_CPU_BASE
 		ldr     \irqstat, [\base, #GIC_CPU_INTACK]
 
 		ldr     \tmp, =1021
@@ -119,6 +206,7 @@
 		cmp	\tmp, #0
 		.endm
 #endif
+#endif	/* MULTI_OMAP2 */
 
 		.macro	irq_prio_table
 		.endm