diff options
Diffstat (limited to 'arch/ppc/syslib/ppc_sys.c')
| -rw-r--r-- | arch/ppc/syslib/ppc_sys.c | 52 |
1 files changed, 51 insertions, 1 deletions
diff --git a/arch/ppc/syslib/ppc_sys.c b/arch/ppc/syslib/ppc_sys.c index 879202352560..52ba0c68078d 100644 --- a/arch/ppc/syslib/ppc_sys.c +++ b/arch/ppc/syslib/ppc_sys.c @@ -6,6 +6,7 @@ * Maintainer: Kumar Gala <kumar.gala@freescale.com> * * Copyright 2005 Freescale Semiconductor Inc. + * Copyright 2005 MontaVista, Inc. by Vitaly Bordug <vbordug@ru.mvista.com> * * 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 @@ -35,10 +36,59 @@ void __init identify_ppc_sys_by_id(u32 id) void __init identify_ppc_sys_by_name(char *name) { - /* TODO */ + unsigned int i = 0; + while (ppc_sys_specs[i].ppc_sys_name[0]) + { + if (!strcmp(ppc_sys_specs[i].ppc_sys_name, name)) + break; + i++; + } + cur_ppc_sys_spec = &ppc_sys_specs[i]; return; } +static int __init count_sys_specs(void) +{ + int i = 0; + while (ppc_sys_specs[i].ppc_sys_name[0]) + i++; + return i; +} + +static int __init find_chip_by_name_and_id(char *name, u32 id) +{ + int ret = -1; + unsigned int i = 0; + unsigned int j = 0; + unsigned int dups = 0; + + unsigned char matched[count_sys_specs()]; + + while (ppc_sys_specs[i].ppc_sys_name[0]) { + if (!strcmp(ppc_sys_specs[i].ppc_sys_name, name)) + matched[j++] = i; + i++; + } + if (j != 0) { + for (i = 0; i < j; i++) { + if ((ppc_sys_specs[matched[i]].mask & id) == + ppc_sys_specs[matched[i]].value) { + ret = matched[i]; + dups++; + } + } + ret = (dups == 1) ? ret : (-1 * dups); + } + return ret; +} + +void __init identify_ppc_sys_by_name_and_id(char *name, u32 id) +{ + int i = find_chip_by_name_and_id(name, id); + BUG_ON(i < 0); + cur_ppc_sys_spec = &ppc_sys_specs[i]; +} + /* Update all memory resources by paddr, call before platform_device_register */ void __init ppc_sys_fixup_mem_resource(struct platform_device *pdev, phys_addr_t paddr) |