1/* 2 * Copyright (C) ST-Ericsson SA 2010 3 * 4 * Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson 5 * License terms: GNU General Public License (GPL) version 2 6 */ 7 8#include <linux/platform_device.h> 9#include <linux/amba/bus.h> 10#include <linux/io.h> 11#include <linux/clk.h> 12 13#include <asm/hardware/cache-l2x0.h> 14#include <asm/hardware/gic.h> 15#include <asm/mach/map.h> 16#include <asm/localtimer.h> 17 18#include <plat/mtu.h> 19#include <mach/hardware.h> 20#include <mach/setup.h> 21#include <mach/devices.h> 22 23#include "clock.h" 24 25static struct map_desc ux500_io_desc[] __initdata = { 26 __IO_DEV_DESC(UX500_UART0_BASE, SZ_4K), 27 __IO_DEV_DESC(UX500_UART2_BASE, SZ_4K), 28 29 __IO_DEV_DESC(UX500_GIC_CPU_BASE, SZ_4K), 30 __IO_DEV_DESC(UX500_GIC_DIST_BASE, SZ_4K), 31 __IO_DEV_DESC(UX500_L2CC_BASE, SZ_4K), 32 __IO_DEV_DESC(UX500_TWD_BASE, SZ_4K), 33 __IO_DEV_DESC(UX500_SCU_BASE, SZ_4K), 34 35 __IO_DEV_DESC(UX500_CLKRST1_BASE, SZ_4K), 36 __IO_DEV_DESC(UX500_CLKRST2_BASE, SZ_4K), 37 __IO_DEV_DESC(UX500_CLKRST3_BASE, SZ_4K), 38 __IO_DEV_DESC(UX500_CLKRST5_BASE, SZ_4K), 39 __IO_DEV_DESC(UX500_CLKRST6_BASE, SZ_4K), 40 41 __IO_DEV_DESC(UX500_MTU0_BASE, SZ_4K), 42 __IO_DEV_DESC(UX500_MTU1_BASE, SZ_4K), 43 44 __IO_DEV_DESC(UX500_BACKUPRAM0_BASE, SZ_8K), 45}; 46 47static struct amba_device *ux500_amba_devs[] __initdata = { 48 &ux500_pl031_device, 49}; 50 51void __init ux500_map_io(void) 52{ 53 iotable_init(ux500_io_desc, ARRAY_SIZE(ux500_io_desc)); 54} 55 56void __init ux500_init_devices(void) 57{ 58 amba_add_devices(ux500_amba_devs, ARRAY_SIZE(ux500_amba_devs)); 59} 60 61void __init ux500_init_irq(void) 62{ 63 gic_dist_init(0, __io_address(UX500_GIC_DIST_BASE), 29); 64 gic_cpu_init(0, __io_address(UX500_GIC_CPU_BASE)); 65 66 /* 67 * Init clocks here so that they are available for system timer 68 * initialization. 69 */ 70 clk_init(); 71} 72 73#ifdef CONFIG_CACHE_L2X0 74static int ux500_l2x0_init(void) 75{ 76 void __iomem *l2x0_base; 77 78 l2x0_base = __io_address(UX500_L2CC_BASE); 79 80 /* 64KB way size, 8 way associativity, force WA */ 81 l2x0_init(l2x0_base, 0x3e060000, 0xc0000fff); 82 83 return 0; 84} 85early_initcall(ux500_l2x0_init); 86#endif 87 88static void __init ux500_timer_init(void) 89{ 90#ifdef CONFIG_LOCAL_TIMERS 91 /* Setup the local timer base */ 92 twd_base = __io_address(UX500_TWD_BASE); 93#endif 94 /* Setup the MTU base */ 95 if (cpu_is_u8500ed()) 96 mtu_base = __io_address(U8500_MTU0_BASE_ED); 97 else 98 mtu_base = __io_address(UX500_MTU0_BASE); 99 100 nmdk_timer_init(); 101} 102 103struct sys_timer ux500_timer = { 104 .init = ux500_timer_init, 105}; 106