From: eLinux.org

Flameman/routerboard-rb532

\< Flameman

For more interesting projects done by Flameman, be sure to check out his
project index

Contents

• 1 RouterBoard-rb532-Flameman
  • 1.1 Note
  • 1.2 Introduction
    • 1.2.1 People you could contact if you need
      help
    • 1.2.2 About the board
    • 1.2.3 features
    • 1.2.4 Overview
    • 1.2.5 Memory Locations
    • 1.2.6 Problems
    • 1.2.7 Images of the board
  • 1.3 Kernel
    • 1.3.1 status
    • 1.3.2 download
  • 1.4 rootfs
    • 1.4.1 dev
      • 1.4.1.1 cfa
  • 1.5 gpio
    • 1.5.1 sources
      • 1.5.1.1 gpio.c
  • 1.6 About Gentoo
    • 1.6.1 what/where
    • 1.6.2 dmesg
    • 1.6.3 About devtools
  • 1.7 Project
    • 1.7.1 Router 3 port ethernet

RouterBoard-rb532-Flameman

Note

i’m developing for this board, the wiki page will be improved soon

feel free to contact me (see the contact below)

Introduction

The Target-goal of this page is

• install gentoo-mipsel into microdrive
• make the board able to boot from it
• describe how to build a jtag cable (to debug and recover from
  “Brickage”)
• describe something useful with you can do with the board
• describe other Operating Systems avalaible for the board

logical steps about installing gentoo

• add the JTAG connector at J10 (you could skip it, it is suggested)
• build the JTAG cable (you could skip it, it is suggested))
• study the bootloader
• make partitions on the microdrive
• populate them
• set the bootloader environment to boot from the microdrive

People you could contact if you need help

• flameman, i’m currently use this board for a project, email
  • msn daredevil-coder@hotmail.it
  • email flamemaniii@gmail.com
  • irc.nick flameman (channel #edev, #gentoo-ppc)
• you … if you want ;-)

About the board

rb532 is a shortened name for the routerboard

you could get your board from
http://routerboard.com/rb500.html

see the nearest reseller of the area where you live mind a brand new
boards costs 140Euro + shipping and VAT cheaper way requires (fortune
and) ebay searched for

features

   * MIPS 32 4Kc based 266MHz (BIOS adjustable from 200 to 333 MHz; 400MHz processor factory option) embedded processor
   * 32MB DDR onboard memory
   * Boot loader, RouterBOOT, 1Mbit Flash chip
   * Data storage, 128MB onboard
   * CompactFlash type I/II slot (also supports IBM/Hitachi Microdrive)
   * Two VIA VT6105, One IDT Korina, 10/100 Mbit/s Fast Ethernet
   * Two MiniPCI Type IIIA/IIIB slots
   * Daughterboard connector Present
   * One DB9 RS232C asynchronous serial port
   * LEDs. Power, 2 LED pairs for MiniPCI slots, 1 user LED
   * Watchdog IDT internal SoC hardware watchdog timer
   * IEEE802.3af Power over Ethernet: 12V or 48V DC Power jack: 11..60V DC
   * Power jack/header 6..22V or 25..56V DC jumper selectable.
   * Dimensions. 14.0 cm x 14.0 cm (5.51 in x 5.51 in)
   * Temperature. Operational: -20°C to +70°C (-4°F to 158°F)
   * Humidity. Operational: 70% relative humidity (non-condensing)
   * Currently supported OS. RouterOS 2.9, Linux 2.4, Linux 2.6

Overview

The board consists of:

• CPU IDT MIPS 79RC32434, a solid & smart implementation of the
  mipsel little endian MIPS 32 4Kcore CPU architecture, running at
  400mhz (adjustable from 200 to 400MHz; 400MHz default and
  recommended)
• RAM soldered 64MB DDR onboard memory chip
• LAN On-chip 3 ethernet: One IDT Korina 10/100 Mbit/s Fast
  Ethernet port supporting Auto-MDI/X, Two VIA VT6105 10/100 Mbit/s
  Fast Ethernet ports supporting Auto-MDI/X.
• UART One DB9 RS232C asynchronous serial port, speeds up to 230k,
  tested up to 115200bps
• miniPCI Two MiniPCI Type IIIA/IIIB slots
• CF support for IBM/Hitachi Microdrive (http://eLinux.org/dev/cfa)
• ROM 1Mbit NAND flash where it is stored the bootloader
• POWER IEEE802.3af Power over Ethernet: 12V or 48V DC, Power
  jack/header 6..22V or 25..56V DC jumper selectable. PoE does not
  support power over datalines
• System PCB 14.0 cm x 14.0 cm
• RTC the real time clock chip is missing
• LED Power, 2 LED pairs for MiniPCI slots, 1 user LED
• Watchdog IDT internal SoC hardware watchdog timer

NOTE: from the base configuration of 3 Ethernet ports and 2 MiniPCI
slots (for wireless cards) it can be extended by using daughterboards
for four more MiniPCI slots, or even up to a total of 15 interfaces (9
Ethernet ports and 6 MiniPCI slots). A wide range of accepted input
power means that you can connect to almost any direct current power
source you already have on site. It also can be powered through an
Ethernet port using Power-over-Ethernet technology (802.3af) or passive
non-standard PoE.

NOTE2: there is a daughterboard for the RB532. It is called RouterBOARD
564, and It attaches to the RB532 by means of special daughterboard
connector and adds four more MiniPCI slots and six ethernet ports. You
can not use more than two AR5414 chipset (e.g. R52) cards in RB/564. If
you want to use three or four miniPCI cards in RB/564, you should use
other chipset based ones for those extra slots, like CM9. For example,
two R52 + two CM9 is OK, four CM9 is also OK, but not three or four R52.

Memory Locations

memory map of the board will be added as soon as possible

Open questions

1) how/where is ram mapped ?

2) how/where is microdrive mapped ?

3) how/where is pci mapped ?

3) what is the bootstrap addr of the flash ?

…

Problems

…

Images of the board

also see a detailed imate @ www routerboard.com/img/rb500_l.jpg

Kernel

status

Korina ethernet VIA Rhine

Rhine-I-VT86C100A x Rhine-II-VT6102 Rhine-III-VT6105

download

kernel 2.6.22 full tested and working
kernel-gentoo-rb532-2.6.22.gz
(suggested for production)

rootfs

dev

cfa

mknod /dev/cfa b 13 0 mknod /dev/cfa1 b 13 1 mknod /dev/cfa2 b 13 2
mknod /dev/cfa3 b 13 3

gpio

sources

http://tomoyo.sourceforge.jp/cgi-bin/lxr/source/arch/mips/rb532/gpio.c

gpio.c

arch.mips.rb532.gpio
001 /*
002  *  Miscellaneous functions for IDT EB434 board
003  *
004  *  2004 IDT Inc. (rischelp@idt.com)
005  *  2006 Phil Sutter <n0-1@freewrt.org>
006  *  2007 Florian Fainelli <florian@openwrt.org>
007  *
027  */
028
029 #include <linux/kernel.h>
030 #include <linux/gpio.h>
031 #include <linux/init.h>
032 #include <linux/types.h>
033 #include <linux/pci.h>
034 #include <linux/spinlock.h>
035 #include <linux/io.h>
036 #include <linux/platform_device.h>
037
038 #include <asm/addrspace.h>
039
040 #include <asm/mach-rc32434/rb.h>
041
042 struct rb532_gpio_reg __iomem *rb532_gpio_reg0;
043 EXPORT_SYMBOL(rb532_gpio_reg0);
044
045 struct mpmc_device dev3;
046
047 static struct resource rb532_gpio_reg0_res[] = {
048         {
049                 .name   = "gpio_reg0",
050                 .start  = (u32)(IDT434_REG_BASE + GPIOBASE),
051                 .end    = (u32)(IDT434_REG_BASE + GPIOBASE + sizeof(struct rb532_gpio_reg)),
052                 .flags  = IORESOURCE_MEM,
053         }
054 };
055
056 static struct resource rb532_dev3_ctl_res[] = {
057         {
058                 .name   = "dev3_ctl",
059                 .start  = (u32)(IDT434_REG_BASE + DEV3BASE),
060                 .end    = (u32)(IDT434_REG_BASE + DEV3BASE + sizeof(struct dev_reg)),
061                 .flags  = IORESOURCE_MEM,
062         }
063 };
064
065 void set_434_reg(unsigned reg_offs, unsigned bit, unsigned len, unsigned val)
066 {
067         unsigned long flags;
068         unsigned data;
069         unsigned i = 0;
070
071         spin_lock_irqsave(&dev3.lock, flags);
072
073         data = *(volatile unsigned *) (IDT434_REG_BASE + reg_offs);
074         for (i = 0; i != len; ++i) {
075                 if (val & (1 << i))
076                         data |= (1 << (i + bit));
077                 else
078                         data &= ~(1 << (i + bit));
079         }
080         writel(data, (IDT434_REG_BASE + reg_offs));
081
082         spin_unlock_irqrestore(&dev3.lock, flags);
083 }
084 EXPORT_SYMBOL(set_434_reg);
085
086 unsigned get_434_reg(unsigned reg_offs)
087 {
088         return readl(IDT434_REG_BASE + reg_offs);
089 }
090 EXPORT_SYMBOL(get_434_reg);
091
092 void set_latch_u5(unsigned char or_mask, unsigned char nand_mask)
093 {
094         unsigned long flags;
095
096         spin_lock_irqsave(&dev3.lock, flags);
097
098         dev3.state = (dev3.state | or_mask) & ~nand_mask;
099         writel(dev3.state, &dev3.base);
100
101         spin_unlock_irqrestore(&dev3.lock, flags);
102 }
103 EXPORT_SYMBOL(set_latch_u5);
104
105 unsigned char get_latch_u5(void)
106 {
107         return dev3.state;
108 }
109 EXPORT_SYMBOL(get_latch_u5);
110
111 int rb532_gpio_get_value(unsigned gpio)
112 {
113         return readl(&rb532_gpio_reg0->gpiod) & (1 << gpio);
114 }
115 EXPORT_SYMBOL(rb532_gpio_get_value);
116
117 void rb532_gpio_set_value(unsigned gpio, int value)
118 {
119         unsigned tmp;
120
121         tmp = readl(&rb532_gpio_reg0->gpiod) & ~(1 << gpio);
122         if (value)
123                 tmp |= 1 << gpio;
124
125         writel(tmp, (void *)&rb532_gpio_reg0->gpiod);
126 }
127 EXPORT_SYMBOL(rb532_gpio_set_value);
128
129 int rb532_gpio_direction_input(unsigned gpio)
130 {
131         writel(readl(&rb532_gpio_reg0->gpiocfg) & ~(1 << gpio),
132                (void *)&rb532_gpio_reg0->gpiocfg);
133
134         return 0;
135 }
136 EXPORT_SYMBOL(rb532_gpio_direction_input);
137
138 int rb532_gpio_direction_output(unsigned gpio, int value)
139 {
140         gpio_set_value(gpio, value);
141         writel(readl(&rb532_gpio_reg0->gpiocfg) | (1 << gpio),
142                (void *)&rb532_gpio_reg0->gpiocfg);
143
144         return 0;
145 }
146 EXPORT_SYMBOL(rb532_gpio_direction_output);
147
148 void rb532_gpio_set_int_level(unsigned gpio, int value)
149 {
150         unsigned tmp;
151
152         tmp = readl(&rb532_gpio_reg0->gpioilevel) & ~(1 << gpio);
153         if (value)
154                 tmp |= 1 << gpio;
155         writel(tmp, (void *)&rb532_gpio_reg0->gpioilevel);
156 }
157 EXPORT_SYMBOL(rb532_gpio_set_int_level);
158
159 int rb532_gpio_get_int_level(unsigned gpio)
160 {
161         return readl(&rb532_gpio_reg0->gpioilevel) & (1 << gpio);
162 }
163 EXPORT_SYMBOL(rb532_gpio_get_int_level);
164
165 void rb532_gpio_set_int_status(unsigned gpio, int value)
166 {
167         unsigned tmp;
168
169         tmp = readl(&rb532_gpio_reg0->gpioistat);
170         if (value)
171                 tmp |= 1 << gpio;
172         writel(tmp, (void *)&rb532_gpio_reg0->gpioistat);
173 }
174 EXPORT_SYMBOL(rb532_gpio_set_int_status);
175
176 int rb532_gpio_get_int_status(unsigned gpio)
177 {
178         return readl(&rb532_gpio_reg0->gpioistat) & (1 << gpio);
179 }
180 EXPORT_SYMBOL(rb532_gpio_get_int_status);
181
182 void rb532_gpio_set_func(unsigned gpio, int value)
183 {
184         unsigned tmp;
185
186         tmp = readl(&rb532_gpio_reg0->gpiofunc);
187         if (value)
188                 tmp |= 1 << gpio;
189         writel(tmp, (void *)&rb532_gpio_reg0->gpiofunc);
190 }
191 EXPORT_SYMBOL(rb532_gpio_set_func);
192
193 int rb532_gpio_get_func(unsigned gpio)
194 {
195         return readl(&rb532_gpio_reg0->gpiofunc) & (1 << gpio);
196 }
197 EXPORT_SYMBOL(rb532_gpio_get_func);
198
199 int __init rb532_gpio_init(void)
200 {
201         rb532_gpio_reg0 = ioremap_nocache(rb532_gpio_reg0_res[0].start,
202                                 rb532_gpio_reg0_res[0].end -
203                                 rb532_gpio_reg0_res[0].start);
204
205         if (!rb532_gpio_reg0) {
206                 printk(KERN_ERR "rb532: cannot remap GPIO register 0\n");
207                 return -ENXIO;
208         }
209
210         dev3.base = ioremap_nocache(rb532_dev3_ctl_res[0].start,
211                                 rb532_dev3_ctl_res[0].end -
212                                 rb532_dev3_ctl_res[0].start);
213
214         if (!dev3.base) {
215                 printk(KERN_ERR "rb532: cannot remap device controller 3\n");
216                 return -ENXIO;
217         }
218
219         return 0;
220 }
221 arch_initcall(rb532_gpio_init);

About Gentoo

the kernel bootstrap from the micro drive

what/where

• kernel 2.4.x there is a port of linux 2.4.30/31 that has been
  tested and it is perfectly working: see
  http://routerboard.com/files/linux-2.4.30-yaffs2.patch.gz
  ,
  http://routerboard.com/files/linux-2.4.31.patch.gz
• kernel 2.6.x
  • 2.6.22: in use on my board with success, and has it has been
    tested for a very long uptime it is known to be very robust
    (suggested for production)
  • 2.6.23: is under porting, see the git @
    http://www.linux-mips.org/git?p=linux-routerboard.git;a=summary
    (actually i have an issue and it doesn’t boot … there is an
    issue with the firmware bootloader)
  • 2.6.24: no sup, repository romoved cause it still has the 2.6.23
    issue
  • 2.6.26: interesting for the thickness feature, r3 is under
    development
  • 2.6.28: interesting for ext4, it’s in my repository, r4 under
    development

dmesg

on 04-12-2007 i was able to compile a perfectly working kernel 2.6.22,
here the dmesg

Version 2.6.22-manatnees-batman-mipsel-rb532 (root@queen-vittoria)
(gcc version 4.1.2 (Gentoo 4.1.2 p1.0.2)) #6 Tue Dec 4 17:12:23 CET 2007
CPU revision is: 0001800a
Determined physical RAM map:
 memory: 03fffa00 @ 00000400 (usable)
Wasting 32 bytes for tracking 1 unused pages
Initrd not found or empty - disabling initrd
On node 0 totalpages: 16383
  Normal zone: 127 pages used for memmap
  Normal zone: 0 pages reserved
  Normal zone: 16256 pages, LIFO batch:3
Built 1 zonelists.  Total pages: 16256
Kernel command line: root=/dev/cfa3 console=ttyS0,9600
gpio=8191 kmac=00:0C:42:0E:8F:01 board=500r5 boot=1
korina mac = 00:0C:42:0E:8F:01
Primary instruction cache 8kB, physically tagged, 4-way, linesize 16 bytes.
Primary data cache 8kB, 4-way, linesize 16 bytes.
Synthesized TLB refill handler (20 instructions).
Synthesized TLB load handler fastpath (32 instructions).
Synthesized TLB store handler fastpath (32 instructions).
Synthesized TLB modify handler fastpath (31 instructions).
Initializing IRQ's: 168 out of 256
PID hash table entries: 256 (order: 8, 1024 bytes)
calculating r4koff... 001e846c(1999980)
CPU frequency 400.00 MHz
Using 199.998 MHz high precision timer.
Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)
Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
Memory: 61120k/65528k available
(2187k kernel code, 4348k reserved, 352k data, 120k init, 0k highmem)
Calibrating delay loop... 398.95 BogoMIPS (lpj=1994752)
Mount-cache hash table entries: 512
NET: Registered protocol family 16
PCI: Initializing PCI
registering PCI controller with io_map_base unset
NET: Registered protocol family 2
Time: MIPS clocksource has been installed.
IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
TCP established hash table entries: 2048 (order: 2, 16384 bytes)
TCP bind hash table entries: 2048 (order: 1, 8192 bytes)
TCP: Hash tables configured (established 2048 bind 2048)
TCP reno registered
Registering mini_fo version $Id$
JFFS2 version 2.2. (NAND) (SUMMARY)  © 2001-2006 Red Hat, Inc.
yaffs Dec  4 2007 17:07:52 Installing.
io scheduler noop registered
io scheduler deadline registered (default)
Serial: 8250/16550 driver $Revision: 1.90 $ 2 ports, IRQ sharing disabled
serial8250: ttyS0 at MMIO 0x0 (irq = 104) is a 16550A
cf-mips module loaded
cf-mips: resetting..
cf-mips: identify drive..
cf-mips: CF card detected, C/H/S=3968/16/63 sectors=3999744 (1953MB)
cf-mips: detecting block size
cf-mips: multiple sectors = 32
init done: cfa: cfa1 cfa2 cfa3
Using NAPI with weight 64
eth0: Rx IRQ 40, Tx IRQ 41, 00:0c:42:0e:8f:01
via-rhine.c:v1.10-LK1.4.3 2007-03-06 Written by Donald Becker
PCI: Enabling device 0000:00:02.0 (0080 -> 0083)
PCI: Setting latency timer of device 0000:00:02.0 to 64
io_map_base of root PCI bus 0000:00 unset.  Trying to continue but you better
fix this issue or report it to linux-mips@linux-mips.org or your vendor.
eth1: VIA Rhine III at 0xb8800000, 00:0c:42:0e:8f:02, IRQ 142.
eth1: MII PHY found at address 1, status 0x7849 advertising 05e1 Link 0000.
PCI: Enabling device 0000:00:03.0 (0080 -> 0083)
PCI: Setting latency timer of device 0000:00:03.0 to 64
eth2: VIA Rhine III at 0xb8800100, 00:0c:42:0e:8f:03, IRQ 143.
eth2: MII PHY found at address 1, status 0x7849 advertising 05e1 Link 0000.
block2mtd: version $Revision: 1.30 $
NAND device: Manufacturer ID: 0xad, Chip ID: 0xf1 (Hynix NAND 128MiB 3,3V 8-bit)
Scanning device for bad blocks
Bad eraseblock 92 at 0x00b80000
Creating 2 MTD partitions on "NAND 128MiB 3,3V 8-bit":
0x00000000-0x00400000 : "Routerboard NAND boot"
0x00400000-0x08000000 : "rootfs"
mtd: partition "rootfs" set to be root filesystem
split_squasfs: no squashfs found in "NAND 128MiB 3,3V 8-bit"
Registered led device: rb500led:amber
nf_conntrack version 0.5.0 (511 buckets, 4088 max)
ip_tables: (C) 2000-2006 Netfilter Core Team
TCP vegas registered
NET: Registered protocol family 1
NET: Registered protocol family 17
802.1Q VLAN Support v1.8 Ben Greear <greearb@candelatech.com>
All bugs added by David S. Miller <davem@redhat.com>
EXT3-fs: INFO: recovery required on readonly filesystem.
EXT3-fs: write access will be enabled during recovery.
kjournald starting.  Commit interval 5 seconds
EXT3-fs: recovery complete.
EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mounted root (ext3 filesystem) readonly.
Freeing unused kernel memory: 120k freed
Algorithmics/MIPS FPU Emulator v1.5
EXT3 FS on cfa3, internal journal

@15-02-2009 i have to update the kernel to 2.6.26/2.6.28 (still under
proof status in my repositories) and i am looking for {miniPCI-sATA,
miniPCI-netwifi}

About devtools

@16-02-2009

you can ask me a working kernel tarball of the sources

Project

Router 3 port ethernet

coming soon

Category:

• Mips