diff options
Diffstat (limited to 'arch/mips/lantiq/xway/prom.c')
| -rw-r--r-- | arch/mips/lantiq/xway/prom.c | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/arch/mips/lantiq/xway/prom.c b/arch/mips/lantiq/xway/prom.c new file mode 100644 index 00000000000..248429ab262 --- /dev/null +++ b/arch/mips/lantiq/xway/prom.c @@ -0,0 +1,115 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * Copyright (C) 2010 John Crispin <blogic@openwrt.org> + */ + +#include <linux/export.h> +#include <linux/clk.h> +#include <asm/bootinfo.h> +#include <asm/time.h> + +#include <lantiq_soc.h> + +#include "../prom.h" + +#define SOC_DANUBE "Danube" +#define SOC_TWINPASS "Twinpass" +#define SOC_AMAZON_SE "Amazon_SE" +#define SOC_AR9 "AR9" +#define SOC_GR9 "GR9" +#define SOC_VR9 "VR9" + +#define COMP_DANUBE "lantiq,danube" +#define COMP_TWINPASS "lantiq,twinpass" +#define COMP_AMAZON_SE "lantiq,ase" +#define COMP_AR9 "lantiq,ar9" +#define COMP_GR9 "lantiq,gr9" +#define COMP_VR9 "lantiq,vr9" + +#define PART_SHIFT 12 +#define PART_MASK 0x0FFFFFFF +#define REV_SHIFT 28 +#define REV_MASK 0xF0000000 + +void __init ltq_soc_detect(struct ltq_soc_info *i) +{ + i->partnum = (ltq_r32(LTQ_MPS_CHIPID) & PART_MASK) >> PART_SHIFT; + i->rev = (ltq_r32(LTQ_MPS_CHIPID) & REV_MASK) >> REV_SHIFT; + sprintf(i->rev_type, "1.%d", i->rev); + switch (i->partnum) { + case SOC_ID_DANUBE1: + case SOC_ID_DANUBE2: + i->name = SOC_DANUBE; + i->type = SOC_TYPE_DANUBE; + i->compatible = COMP_DANUBE; + break; + + case SOC_ID_TWINPASS: + i->name = SOC_TWINPASS; + i->type = SOC_TYPE_DANUBE; + i->compatible = COMP_TWINPASS; + break; + + case SOC_ID_ARX188: + case SOC_ID_ARX168_1: + case SOC_ID_ARX168_2: + case SOC_ID_ARX182: + i->name = SOC_AR9; + i->type = SOC_TYPE_AR9; + i->compatible = COMP_AR9; + break; + + case SOC_ID_GRX188: + case SOC_ID_GRX168: + i->name = SOC_GR9; + i->type = SOC_TYPE_AR9; + i->compatible = COMP_GR9; + break; + + case SOC_ID_AMAZON_SE_1: + case SOC_ID_AMAZON_SE_2: +#ifdef CONFIG_PCI + panic("ase is only supported for non pci kernels"); +#endif + i->name = SOC_AMAZON_SE; + i->type = SOC_TYPE_AMAZON_SE; + i->compatible = COMP_AMAZON_SE; + break; + + case SOC_ID_VRX282: + case SOC_ID_VRX268: + case SOC_ID_VRX288: + i->name = SOC_VR9; + i->type = SOC_TYPE_VR9; + i->compatible = COMP_VR9; + break; + + case SOC_ID_GRX268: + case SOC_ID_GRX288: + i->name = SOC_GR9; + i->type = SOC_TYPE_VR9; + i->compatible = COMP_GR9; + break; + + case SOC_ID_VRX268_2: + case SOC_ID_VRX288_2: + i->name = SOC_VR9; + i->type = SOC_TYPE_VR9_2; + i->compatible = COMP_VR9; + break; + + case SOC_ID_GRX282_2: + case SOC_ID_GRX288_2: + i->name = SOC_GR9; + i->type = SOC_TYPE_VR9_2; + i->compatible = COMP_GR9; + break; + + default: + unreachable(); + break; + } +} |