diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/arm/mach-wmt/board.c')
| -rwxr-xr-x | ANDROID_3.4.5/arch/arm/mach-wmt/board.c | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/ANDROID_3.4.5/arch/arm/mach-wmt/board.c b/ANDROID_3.4.5/arch/arm/mach-wmt/board.c new file mode 100755 index 00000000..30b215b7 --- /dev/null +++ b/ANDROID_3.4.5/arch/arm/mach-wmt/board.c @@ -0,0 +1,128 @@ +/*++ +linux/arch/arm/mach-wmt/board.c + +Copyright (c) 2012 WonderMedia Technologies, Inc. + +This program is free software: you can redistribute it and/or modify it under the +terms of the GNU General Public License as published by the Free Software Foundation, +either version 2 of the License, or (at your option) any later version. + +This program is distributed in the hope that it will be useful, but WITHOUT +ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A +PARTICULAR PURPOSE. See the GNU General Public License for more details. +You should have received a copy of the GNU General Public License along with +this program. If not, see <http://www.gnu.org/licenses/>. + +WonderMedia Technologies, Inc. +10F, 529, Chung-Cheng Road, Hsin-Tien, Taipei 231, R.O.C. +--*/ + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/delay.h> +#include <linux/pm.h> +#include <linux/cpufreq.h> +#include <linux/ioport.h> +#include <linux/tty.h> +#include <linux/mm.h> +#include <linux/errno.h> +#include <linux/serial_core.h> +#include <linux/delay.h> + +#include <mach/hardware.h> +#include <asm/system.h> +#include <asm/mach-types.h> +#include <asm/irq.h> +#include <asm/setup.h> +#include <asm/page.h> +#include <asm/pgtable.h> +#include <asm/tlbflush.h> +#include <asm/sizes.h> + +#include <asm/mach/arch.h> +#include <asm/mach/map.h> +#include <asm/hardware/gic.h> + +#include "generic.h" + +static void __init +wmt_fixup(struct tag *tags, + char **cmdline, struct meminfo *mi) +{ +#ifdef CONFIG_WMT_FIXUP_ATAG + + struct tag *t = tags; + + /*FIXME, remove following while ATAG passing from bootloader is ok.*/ + t->hdr.tag = ATAG_CORE; + t->hdr.size = tag_size(tag_core); + t->u.core.flags = 0; + t->u.core.pagesize = PAGE_SIZE; + t->u.core.rootdev = (RAMDISK_MAJOR << 8) | 0; + t = tag_next(t); + + t->hdr.tag = ATAG_MEM; + t->hdr.size = tag_size(tag_mem32); + t->u.mem.start = 0x00000000; + t->u.mem.size = 64 * 1024 * 1024; + t = tag_next(t); + /**/ + /* ramdisk.size = decompressed ramdisk size in _kilo_ bytes.*/ + /**/ + t->hdr.tag = ATAG_RAMDISK; + t->hdr.size = tag_size(tag_ramdisk); + t->u.ramdisk.flags = 1; + t->u.ramdisk.size = 8 * 1024; + t->u.ramdisk.start = 0; + t = tag_next(t); + /**/ + /* initrd.size = size of compressed ramdisk image in bytes.*/ + /**/ + t->hdr.tag = ATAG_INITRD2; + t->hdr.size = tag_size(tag_initrd); + t->u.initrd.start = 0x01000000; /* physical*/ + /*t->u.initrd.size = 3 * 1024 * 1024;*/ + t->u.initrd.size = 8 * 1024 * 1024; /* depend on the size of ramdisk.gz*/ + t = tag_next(t); + + t->hdr.tag = ATAG_NONE; + t->hdr.size = 0; +#endif +} + +/* map wmt physical io address to virtual address */ +static struct map_desc wmt_io_desc[] __initdata = { + { + .virtual = 0xFE000000, + .length = SZ_16M, + .pfn = __phys_to_pfn(0xD8000000), + .type = MT_DEVICE + } +}; + +static void __init wmt_map_io(void) +{ + iotable_init(wmt_io_desc, ARRAY_SIZE(wmt_io_desc)); + + wmt_register_uart(0, 0); /* mount ttyS0 (or ttyVT0) to UART0*/ + wmt_register_uart(1, 1); /* mount ttyS1 to UART1*/ +#ifdef CONFIG_UART_2_3_ENABLE + wmt_register_uart(2, 2); /* mount ttyS2 to UART2*/ + wmt_register_uart(3, 3); /* mount ttyS3 to UART3*/ +#endif +} + +extern struct sys_timer wmt_timer; + +MACHINE_START(WMT, "WMT") +#ifdef CONFIG_WMT_USE_BOOTLOADER_ATAG + .boot_params = 0x00000100, +#endif + .fixup = &wmt_fixup, + .map_io = &wmt_map_io, + .init_irq = wmt_init_irq, + .handle_irq = gic_handle_irq, + .timer = &wmt_timer, +MACHINE_END + |