Merge tag 'iwlwifi-next-for-kalle-2014-12-30' of https://git.kernel.org/pub/scm/linux...
[cascardo/linux.git] / arch / mips / mti-sead3 / sead3-int.c
1 /*
2  * This file is subject to the terms and conditions of the GNU General Public
3  * License.  See the file "COPYING" in the main directory of this archive
4  * for more details.
5  *
6  * Copyright (C) 2012 MIPS Technologies, Inc.  All rights reserved.
7  */
8 #include <linux/init.h>
9 #include <linux/irq.h>
10 #include <linux/irqchip/mips-gic.h>
11 #include <linux/io.h>
12
13 #include <asm/irq_cpu.h>
14 #include <asm/setup.h>
15
16 #include <asm/mips-boards/sead3int.h>
17
18 #define SEAD_CONFIG_GIC_PRESENT_SHF     1
19 #define SEAD_CONFIG_GIC_PRESENT_MSK     (1 << SEAD_CONFIG_GIC_PRESENT_SHF)
20 #define SEAD_CONFIG_BASE                0x1b100110
21 #define SEAD_CONFIG_SIZE                4
22
23 static void __iomem *sead3_config_reg;
24
25 void __init arch_init_irq(void)
26 {
27         if (!cpu_has_veic)
28                 mips_cpu_irq_init();
29
30         sead3_config_reg = ioremap_nocache(SEAD_CONFIG_BASE, SEAD_CONFIG_SIZE);
31         gic_present = (__raw_readl(sead3_config_reg) &
32                        SEAD_CONFIG_GIC_PRESENT_MSK) >>
33                 SEAD_CONFIG_GIC_PRESENT_SHF;
34         pr_info("GIC: %spresent\n", (gic_present) ? "" : "not ");
35         pr_info("EIC: %s\n",
36                 (current_cpu_data.options & MIPS_CPU_VEIC) ?  "on" : "off");
37
38         if (gic_present)
39                 gic_init(GIC_BASE_ADDR, GIC_ADDRSPACE_SZ, CPU_INT_GIC,
40                          MIPS_GIC_IRQ_BASE);
41 }
42