| Magnus Damm | f411fad | 2011-12-14 01:36:12 +0900 | [diff] [blame^] | 1 | /* |
| 2 | * marzen board support |
| 3 | * |
| 4 | * Copyright (C) 2011 Renesas Solutions Corp. |
| 5 | * Copyright (C) 2011 Magnus Damm |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License as published by |
| 9 | * the Free Software Foundation; version 2 of the License. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software |
| 18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 19 | */ |
| 20 | |
| 21 | #include <linux/kernel.h> |
| 22 | #include <linux/init.h> |
| 23 | #include <linux/interrupt.h> |
| 24 | #include <linux/irq.h> |
| 25 | #include <linux/platform_device.h> |
| 26 | #include <linux/delay.h> |
| 27 | #include <linux/io.h> |
| 28 | #include <linux/dma-mapping.h> |
| 29 | #include <mach/hardware.h> |
| 30 | #include <mach/r8a7779.h> |
| 31 | #include <mach/common.h> |
| 32 | #include <asm/mach-types.h> |
| 33 | #include <asm/mach/arch.h> |
| 34 | #include <asm/mach/map.h> |
| 35 | #include <asm/mach/time.h> |
| 36 | #include <asm/hardware/gic.h> |
| 37 | #include <asm/traps.h> |
| 38 | |
| 39 | static struct platform_device *marzen_devices[] __initdata = { |
| 40 | }; |
| 41 | |
| 42 | static struct map_desc marzen_io_desc[] __initdata = { |
| 43 | /* 2M entity map for 0xf0000000 (MPCORE) */ |
| 44 | { |
| 45 | .virtual = 0xf0000000, |
| 46 | .pfn = __phys_to_pfn(0xf0000000), |
| 47 | .length = SZ_2M, |
| 48 | .type = MT_DEVICE_NONSHARED |
| 49 | }, |
| 50 | /* 16M entity map for 0xfexxxxxx (DMAC-S/HPBREG/INTC2/LRAM/DBSC) */ |
| 51 | { |
| 52 | .virtual = 0xfe000000, |
| 53 | .pfn = __phys_to_pfn(0xfe000000), |
| 54 | .length = SZ_16M, |
| 55 | .type = MT_DEVICE_NONSHARED |
| 56 | }, |
| 57 | }; |
| 58 | |
| 59 | static void __init marzen_map_io(void) |
| 60 | { |
| 61 | iotable_init(marzen_io_desc, ARRAY_SIZE(marzen_io_desc)); |
| 62 | } |
| 63 | |
| 64 | static void __init marzen_init_early(void) |
| 65 | { |
| 66 | r8a7779_add_early_devices(); |
| 67 | |
| 68 | /* Early serial console setup is not included here due to |
| 69 | * memory map collisions. The SCIF serial ports in r8a7779 |
| 70 | * are difficult to entity map 1:1 due to collision with the |
| 71 | * virtual memory range used by the coherent DMA code on ARM. |
| 72 | * |
| 73 | * Anyone wanting to debug early can remove UPF_IOREMAP from |
| 74 | * the sh-sci serial console platform data, adjust mapbase |
| 75 | * to a static M:N virt:phys mapping that needs to be added to |
| 76 | * the mappings passed with iotable_init() above. |
| 77 | * |
| 78 | * Then add a call to shmobile_setup_console() from this function. |
| 79 | * |
| 80 | * As a final step pass earlyprint=sh-sci.2,115200 on the kernel |
| 81 | * command line. |
| 82 | */ |
| 83 | } |
| 84 | |
| 85 | static void __init marzen_init(void) |
| 86 | { |
| 87 | r8a7779_add_standard_devices(); |
| 88 | platform_add_devices(marzen_devices, ARRAY_SIZE(marzen_devices)); |
| 89 | } |
| 90 | |
| 91 | static void __init marzen_timer_init(void) |
| 92 | { |
| 93 | r8a7779_clock_init(); |
| 94 | shmobile_timer.init(); |
| 95 | return; |
| 96 | } |
| 97 | |
| 98 | struct sys_timer marzen_timer = { |
| 99 | .init = marzen_timer_init, |
| 100 | }; |
| 101 | |
| 102 | MACHINE_START(MARZEN, "marzen") |
| 103 | .map_io = marzen_map_io, |
| 104 | .init_early = marzen_init_early, |
| 105 | .nr_irqs = NR_IRQS_LEGACY, |
| 106 | .init_irq = r8a7779_init_irq, |
| 107 | .handle_irq = shmobile_handle_irq_gic, |
| 108 | .init_machine = marzen_init, |
| 109 | .timer = &marzen_timer, |
| 110 | MACHINE_END |