ARM: shmobile: r8a7790: Instantiate GIC from C board code in legacy builds

[karo-tx-linux.git] / arch / arm / mach-shmobile / board-lager.c

diff --git a/arch/arm/mach-shmobile/board-lager.c b/arch/arm/mach-shmobile/board-lager.c
index 571327b1c942c138fbba5cfe8e5ea03d7896ccb1..3f513270fc60fa303451aa44021ea0bcfda3ab51 100644 (file)
--- a/arch/arm/mach-shmobile/board-lager.c
+++ b/arch/arm/mach-shmobile/board-lager.c
@@ -25,6 +25,8 @@
 #include <linux/input.h>
 #include <linux/interrupt.h>
 #include <linux/irq.h>
+#include <linux/irqchip.h>
+#include <linux/irqchip/arm-gic.h>
 #include <linux/kernel.h>
 #include <linux/leds.h>
 #include <linux/mfd/tmio.h>
@@ -873,6 +875,16 @@ static void __init lager_init(void)
                                          lager_ksz8041_fixup);
 }
 
+static void __init lager_legacy_init_irq(void)
+{
+       void __iomem *gic_dist_base = ioremap_nocache(0xf1001000, 0x1000);
+       void __iomem *gic_cpu_base = ioremap_nocache(0xf1002000, 0x1000);
+
+       gic_init(0, 29, gic_dist_base, gic_cpu_base);
+
+       /* Do not invoke DT-based interrupt code via irqchip_init() */
+}
+
 static const char * const lager_boards_compat_dt[] __initconst = {
        "renesas,lager",
        NULL,
@@ -881,6 +893,7 @@ static const char * const lager_boards_compat_dt[] __initconst = {
 DT_MACHINE_START(LAGER_DT, "lager")
        .smp            = smp_ops(r8a7790_smp_ops),
        .init_early     = shmobile_init_delay,
+       .init_irq       = lager_legacy_init_irq,
        .init_time      = rcar_gen2_timer_init,
        .init_machine   = lager_init,
        .init_late      = shmobile_init_late,