From c4057f5260650f165054bc56e16acc4aa0510d4f Mon Sep 17 00:00:00 2001 From: Catalin Marinas Date: Mon, 4 Feb 2008 17:41:01 +0100 Subject: [PATCH] [ARM] 4819/1: RealView: Fix entry-macro.S to work with multiple platforms This patch modifies the get_irqnr_preamble macro to work with multiple platforms at run-time by reading the address of the GIC controller from the gic_cpu_base_addr variable. This variable is defined in core.c and intialised in realview_eb.c (gic_init_irq). Signed-off-by: Catalin Marinas Signed-off-by: Russell King --- arch/arm/mach-realview/core.c | 3 +++ arch/arm/mach-realview/core.h | 1 + arch/arm/mach-realview/realview_eb.c | 6 ++++-- include/asm-arm/arch-realview/entry-macro.S | 8 ++------ 4 files changed, 10 insertions(+), 8 deletions(-) diff --git a/arch/arm/mach-realview/core.c b/arch/arm/mach-realview/core.c index 046d31ce27..29514ac94f 100644 --- a/arch/arm/mach-realview/core.c +++ b/arch/arm/mach-realview/core.c @@ -50,6 +50,9 @@ #define REALVIEW_REFCOUNTER (__io_address(REALVIEW_SYS_BASE) + REALVIEW_SYS_24MHz_OFFSET) +/* used by entry-macro.S */ +void __iomem *gic_cpu_base_addr; + /* * This is the RealView sched_clock implementation. This has * a resolution of 41.7ns, and a maximum value of about 179s. diff --git a/arch/arm/mach-realview/core.h b/arch/arm/mach-realview/core.h index 9206db7b80..1c091372be 100644 --- a/arch/arm/mach-realview/core.h +++ b/arch/arm/mach-realview/core.h @@ -52,6 +52,7 @@ extern struct mmc_platform_data realview_mmc0_plat_data; extern struct mmc_platform_data realview_mmc1_plat_data; extern struct clk realview_clcd_clk; extern struct clcd_board clcd_plat_data; +extern void __iomem *gic_cpu_base_addr; extern void realview_leds_event(led_event_t ledevt); diff --git a/arch/arm/mach-realview/realview_eb.c b/arch/arm/mach-realview/realview_eb.c index e42ac56e4d..f36af13350 100644 --- a/arch/arm/mach-realview/realview_eb.c +++ b/arch/arm/mach-realview/realview_eb.c @@ -256,8 +256,9 @@ static void __init gic_init_irq(void) writel(0x00000000, __io_address(REALVIEW_SYS_LOCK)); /* core tile GIC, primary */ + gic_cpu_base_addr = __io_address(REALVIEW_EB11MP_GIC_CPU_BASE); gic_dist_init(0, __io_address(REALVIEW_EB11MP_GIC_DIST_BASE), 29); - gic_cpu_init(0, __io_address(REALVIEW_EB11MP_GIC_CPU_BASE)); + gic_cpu_init(0, gic_cpu_base_addr); #ifndef CONFIG_REALVIEW_MPCORE_REVB /* board GIC, secondary */ @@ -267,8 +268,9 @@ static void __init gic_init_irq(void) #endif } else { /* board GIC, primary */ + gic_cpu_base_addr = __io_address(REALVIEW_GIC_CPU_BASE); gic_dist_init(0, __io_address(REALVIEW_GIC_DIST_BASE), 29); - gic_cpu_init(0, __io_address(REALVIEW_GIC_CPU_BASE)); + gic_cpu_init(0, gic_cpu_base_addr); } } diff --git a/include/asm-arm/arch-realview/entry-macro.S b/include/asm-arm/arch-realview/entry-macro.S index 629944deed..cd26306d8e 100644 --- a/include/asm-arm/arch-realview/entry-macro.S +++ b/include/asm-arm/arch-realview/entry-macro.S @@ -9,17 +9,13 @@ */ #include #include -#include .macro disable_fiq .endm .macro get_irqnr_preamble, base, tmp -#ifdef CONFIG_REALVIEW_MPCORE - ldr \base, =IO_ADDRESS(REALVIEW_EB11MP_GIC_CPU_BASE) -#else - ldr \base, =IO_ADDRESS(REALVIEW_GIC_CPU_BASE) -#endif + ldr \base, =gic_cpu_base_addr + ldr \base, [\base] .endm .macro arch_ret_to_user, tmp1, tmp2 -- 2.39.5