diff options
Diffstat (limited to 'arch/arm/mach-clps711x/p720t.c')
| -rw-r--r-- | arch/arm/mach-clps711x/p720t.c | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/arch/arm/mach-clps711x/p720t.c b/arch/arm/mach-clps711x/p720t.c new file mode 100644 index 00000000..42ee8f33 --- /dev/null +++ b/arch/arm/mach-clps711x/p720t.c @@ -0,0 +1,123 @@ +/* + * linux/arch/arm/mach-clps711x/p720t.c + * + * Copyright (C) 2000-2001 Deep Blue Solutions Ltd + * + * 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, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/types.h> +#include <linux/string.h> +#include <linux/mm.h> +#include <linux/io.h> + +#include <mach/hardware.h> +#include <asm/pgtable.h> +#include <asm/page.h> +#include <asm/setup.h> +#include <asm/sizes.h> +#include <asm/mach-types.h> +#include <asm/mach/arch.h> +#include <asm/mach/map.h> +#include <mach/syspld.h> + +#include "common.h" + +/* + * Map the P720T system PLD. It occupies two address spaces: + * SYSPLD_PHYS_BASE and SYSPLD_PHYS_BASE + 0x00400000 + * We map both here. + */ +static struct map_desc p720t_io_desc[] __initdata = { + { + .virtual = SYSPLD_VIRT_BASE, + .pfn = __phys_to_pfn(SYSPLD_PHYS_BASE), + .length = SZ_1M, + .type = MT_DEVICE + }, { + .virtual = 0xfe400000, + .pfn = __phys_to_pfn(0x10400000), + .length = SZ_1M, + .type = MT_DEVICE + } +}; + +static void __init +fixup_p720t(struct tag *tag, char **cmdline, struct meminfo *mi) +{ + /* + * Our bootloader doesn't setup any tags (yet). + */ + if (tag->hdr.tag != ATAG_CORE) { + tag->hdr.tag = ATAG_CORE; + tag->hdr.size = tag_size(tag_core); + tag->u.core.flags = 0; + tag->u.core.pagesize = PAGE_SIZE; + tag->u.core.rootdev = 0x0100; + + tag = tag_next(tag); + tag->hdr.tag = ATAG_MEM; + tag->hdr.size = tag_size(tag_mem32); + tag->u.mem.size = 4096; + tag->u.mem.start = PHYS_OFFSET; + + tag = tag_next(tag); + tag->hdr.tag = ATAG_NONE; + tag->hdr.size = 0; + } +} + +static void __init p720t_map_io(void) +{ + clps711x_map_io(); + iotable_init(p720t_io_desc, ARRAY_SIZE(p720t_io_desc)); +} + +MACHINE_START(P720T, "ARM-Prospector720T") + /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */ + .atag_offset = 0x100, + .fixup = fixup_p720t, + .map_io = p720t_map_io, + .init_irq = clps711x_init_irq, + .timer = &clps711x_timer, + .restart = clps711x_restart, +MACHINE_END + +static int p720t_hw_init(void) +{ + /* + * Power down as much as possible in case we don't + * have the drivers loaded. + */ + PLD_LCDEN = 0; + PLD_PWR &= ~(PLD_S4_ON|PLD_S3_ON|PLD_S2_ON|PLD_S1_ON); + + PLD_KBD = 0; + PLD_IO = 0; + PLD_IRDA = 0; + PLD_CODEC = 0; + PLD_TCH = 0; + PLD_SPI = 0; +#ifndef CONFIG_DEBUG_LL + PLD_COM2 = 0; + PLD_COM1 = 0; +#endif + + return 0; +} + +__initcall(p720t_hw_init); + |