| 1 | /* |
| 2 | * This program is free software; you can redistribute it and/or modify |
| 3 | * it under the terms of the GNU General Public License as published by |
| 4 | * the Free Software Foundation; either version 2 of the License, or |
| 5 | * (at your option) any later version. |
| 6 | * |
| 7 | * Copyright (C) 2010 John Crispin <blogic@openwrt.org> |
| 8 | */ |
| 9 | |
| 10 | #include <linux/module.h> |
| 11 | #include <linux/clk.h> |
| 12 | #include <linux/time.h> |
| 13 | #include <asm/bootinfo.h> |
| 14 | |
| 15 | #include <lantiq_soc.h> |
| 16 | |
| 17 | #include "../prom.h" |
| 18 | #include "../clk.h" |
| 19 | #include "../machtypes.h" |
| 20 | |
| 21 | #include <base_reg.h> |
| 22 | #include <ebu_reg.h> |
| 23 | |
| 24 | #define SOC_SVIP "SVIP" |
| 25 | |
| 26 | #define PART_SHIFT 12 |
| 27 | #define PART_MASK 0x0FFFF000 |
| 28 | #define REV_SHIFT 28 |
| 29 | #define REV_MASK 0xF0000000 |
| 30 | |
| 31 | static struct svip_reg_ebu *const ebu = (struct svip_reg_ebu *)LTQ_EBU_BASE; |
| 32 | |
| 33 | void __init ltq_soc_init(void) |
| 34 | { |
| 35 | clkdev_add_static(ltq_svip_cpu_hz(), ltq_svip_fpi_hz(), |
| 36 | ltq_svip_io_region_clock()); |
| 37 | } |
| 38 | |
| 39 | void __init |
| 40 | ltq_soc_setup(void) |
| 41 | { |
| 42 | if (mips_machtype == LANTIQ_MACH_EASY33016 || |
| 43 | mips_machtype == LANTIQ_MACH_EASY336) { |
| 44 | ebu_w32(0x120000f1, addr_sel_2); |
| 45 | ebu_w32(LTQ_EBU_CON_0_ADSWP | |
| 46 | LTQ_EBU_CON_0_SETUP | |
| 47 | LTQ_EBU_CON_0_BCGEN_VAL(0x02) | |
| 48 | LTQ_EBU_CON_0_WAITWRC_VAL(7) | |
| 49 | LTQ_EBU_CON_0_WAITRDC_VAL(3) | |
| 50 | LTQ_EBU_CON_0_HOLDC_VAL(3) | |
| 51 | LTQ_EBU_CON_0_RECOVC_VAL(3) | |
| 52 | LTQ_EBU_CON_0_CMULT_VAL(3), con_2); |
| 53 | } |
| 54 | } |
| 55 | |
| 56 | void __init |
| 57 | ltq_soc_detect(struct ltq_soc_info *i) |
| 58 | { |
| 59 | i->partnum = (ltq_r32(LTQ_STATUS_CHIPID) & PART_MASK) >> PART_SHIFT; |
| 60 | i->rev = (ltq_r32(LTQ_STATUS_CHIPID) & REV_MASK) >> REV_SHIFT; |
| 61 | sprintf(i->rev_type, "1.%d", i->rev); |
| 62 | switch (i->partnum) { |
| 63 | case SOC_ID_SVIP: |
| 64 | i->name = SOC_SVIP; |
| 65 | i->type = SOC_TYPE_SVIP; |
| 66 | break; |
| 67 | |
| 68 | default: |
| 69 | printk(KERN_ERR "unknown partnum : 0x%08X\n", i->partnum); |
| 70 | while (1); |
| 71 | break; |
| 72 | } |
| 73 | } |
| 74 | |
