diff options
Diffstat (limited to 'target/linux/rdc/files-2.6.30/arch/x86/mach-rdc321x/boards/bifferboard.c')
-rw-r--r-- | target/linux/rdc/files-2.6.30/arch/x86/mach-rdc321x/boards/bifferboard.c | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/target/linux/rdc/files-2.6.30/arch/x86/mach-rdc321x/boards/bifferboard.c b/target/linux/rdc/files-2.6.30/arch/x86/mach-rdc321x/boards/bifferboard.c new file mode 100644 index 0000000000..076459e697 --- /dev/null +++ b/target/linux/rdc/files-2.6.30/arch/x86/mach-rdc321x/boards/bifferboard.c @@ -0,0 +1,82 @@ +/* + * Bifferboard RDC321x platform devices + * + * Copyright (C) 2010 bifferos@yahoo.co.uk + * + * 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., 51 Franklin Street, Fifth Floor, + * Boston, MA 02110-1301, USA. + * + */ + +#include <linux/init.h> +#include <linux/mtd/physmap.h> +#include <linux/input.h> + +#include <asm/rdc_boards.h> + +static int __init parse_bifferboard_partitions(struct mtd_info *master, struct mtd_partition **pparts, unsigned long plat_data) +{ + int res; + size_t len; + struct mtd_partition *rdc_flash_parts; + u32 kernel_len; + u16 tmp; + + if (master->size == 0x100000) + kernel_len = master->size - 0x10000; + else { + res = master->read(master, 0x4000 + 1036, 2, &len, (char *) &tmp); + if (res) + return res; + kernel_len = tmp * master->erasesize; + } + + rdc_flash_parts = kzalloc(sizeof(struct mtd_partition) * 4, GFP_KERNEL); + + *pparts = rdc_flash_parts; + + rdc_flash_parts[0].name = "biffboot"; + rdc_flash_parts[0].offset = master->size - 0x10000; + rdc_flash_parts[0].size = 0x10000; + rdc_flash_parts[0].mask_flags = MTD_WRITEABLE; + rdc_flash_parts[1].name = "firmware"; + rdc_flash_parts[1].offset = 0; + rdc_flash_parts[1].size = rdc_flash_parts[0].offset; + rdc_flash_parts[2].name = "kernel"; + rdc_flash_parts[2].offset = 0x00000000; + rdc_flash_parts[2].size = kernel_len; + + if (master->size == 0x100000) + return 2; + + rdc_flash_parts[3].name = "rootfs"; + rdc_flash_parts[3].offset = MTDPART_OFS_APPEND; + rdc_flash_parts[3].size = rdc_flash_parts[1].size - rdc_flash_parts[2].size; + + return 4; +} + +struct mtd_part_parser __initdata bifferboard_parser = { + .owner = THIS_MODULE, + .parse_fn = parse_bifferboard_partitions, + .name = "Bifferboard", +}; + +static int __init bifferboard_setup(void) +{ + return register_mtd_parser(&bifferboard_parser); +} + +arch_initcall(bifferboard_setup); |