bcm43xx can not support 256M RAM，just can use 128M

[Love4Taylor]

[    0.000000] Linux version 3.10.49 (openwrt@gb-13) (gcc version 4.8.3 (OpenWrt/Linaro GCC 4.8-2014.04 r42170) ) #1 Mon Aug 18 11:27:06 UTC 2014
[    0.000000] assume 128MB RAM
[    0.000000] CPU revision is: 00019749 (MIPS 74Kc)
[    0.000000] bcm47xx: using bcma bus
[    0.000000] bcma: bus0: Found chip with id 0x5357, rev 0x01 and package 0x09
[    0.000000] bcma: bus0: Core 0 found: ChipCommon (manuf 0x4BF, id 0x800, rev 0x26, class 0x0)
[    0.000000] bcma: bus0: Core 3 found: MIPS 74K (manuf 0x4A7, id 0x82C, rev 0x04, class 0x0)
[    0.000000] bcma: bus0: Found rev 9 PMU (capabilities 0x28A42A09)
[    0.000000] bcma: bus0: Found serial flash
[    0.000000] bcma: bus0: Found M25FL128 serial flash (size: 16384KiB, blocksize: 0x10000, blocks: 256)
[    0.000000] bcma: bus0: Early bus registered
[    0.000000] MIPS: machine is Unknown Board
[    0.000000] Determined physical RAM map:
[    0.000000]  memory: 07fff000 @ 00000000 (usable)
[    0.000000] Initrd not found or empty - disabling initrd
[    0.000000] Zone ranges:
[    0.000000]   Normal   [mem 0x00000000-0x07ffefff]
[    0.000000]   HighMem  empty
[    0.000000] Movable zone start for each node
[    0.000000] Early memory node ranges
[    0.000000]   node   0: [mem 0x00000000-0x07ffefff]
[    0.000000] On node 0 totalpages: 32767
[    0.000000] free_area_init_node: node 0, pgdat 802d4bb0, node_mem_map 81000000
[    0.000000]   Normal zone: 256 pages used for memmap
[    0.000000]   Normal zone: 0 pages reserved
[    0.000000]   Normal zone: 32767 pages, LIFO batch:7
[    0.000000] Primary instruction cache 32kB, VIPT, 4-way, linesize 32 bytes.
[    0.000000] Primary data cache 32kB, 4-way, VIPT, cache aliases, linesize 32 bytes
[    0.000000] pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768
[    0.000000] pcpu-alloc: [0] 0 
[    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 32511
[    0.000000] Kernel command line:  noinitrd console=ttyS0,115200
[    0.000000] PID hash table entries: 512 (order: -1, 2048 bytes)
[    0.000000] Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
[    0.000000] Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
[    0.000000] Writing ErrCtl register=00000000
[    0.000000] Readback ErrCtl register=00000000
[    0.000000] Memory: 126408k/131068k available (2384k kernel code, 4660k reserved, 594k data, 216k init, 0k highmem)
[    0.000000] NR_IRQS:128
[    0.000000] Setting up vectored interrupts
[    0.080000] Calibrating delay loop... 265.42 BogoMIPS (lpj=1327104)
[    0.080000] pid_max: default: 32768 minimum: 301
[    0.080000] Mount-cache hash table entries: 512
[    0.080000] NET: Registered protocol family 16
[    0.090000] bio: create slab <bio-0> at 0
[    0.100000] Switching to clocksource MIPS
[    0.100000] NET: Registered protocol family 2
[    0.100000] TCP established hash table entries: 1024 (order: 1, 8192 bytes)
[    0.100000] TCP bind hash table entries: 1024 (order: 0, 4096 bytes)
[    0.100000] TCP: Hash tables configured (established 1024 bind 1024)
[    0.100000] TCP: reno registered
[    0.100000] UDP hash table entries: 256 (order: 0, 4096 bytes)
[    0.100000] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
[    0.100000] NET: Registered protocol family 1
[    0.100000] PCI: CLS 0 bytes, default 32
[    0.100000] bcma: bus0: Core 1 found: IEEE 802.11 (manuf 0x4BF, id 0x812, rev 0x1C, class 0x0)
[    0.100000] bcma: bus0: Core 2 found: GBit MAC (manuf 0x4BF, id 0x82D, rev 0x03, class 0x0)
[    0.100000] bcma: bus0: Core 4 found: USB 2.0 Host (manuf 0x4BF, id 0x819, rev 0x05, class 0x0)
[    0.100000] bcma: bus0: Core 5 found: DDR1/DDR2 Memory Controller (manuf 0x4BF, id 0x82E, rev 0x02, class 0x0)
[    0.100000] bcma: bus0: Core 6 found: I2S (manuf 0x4BF, id 0x834, rev 0x02, class 0x0)
[    0.100000] bcma: bus0: Core 7 found: Internal Memory (manuf 0x4BF, id 0x80E, rev 0x0B, class 0x0)
[    0.110000] can not parse nvram name sb/1/rxpo2g(null) with value 0xff got -34
[    0.110000] can not parse nvram name sb/1/ag2(null) with value 0xff got -34
[    0.110000] can not parse nvram name sb/1/ag3(null) with value 0xff got -34
[    0.130000] bcma: bus0: Using SPROM revision 8 provided by platform.
[    0.130000] bcma: bus0: PMU resource config unknown or not needed for device 0x5357
[    0.130000] bcma: bus0: Workarounds unknown or not needed for device 0x5357
[    0.130000] bcma: bus0: Initializing MIPS core...
[    0.130000] bcma: bus0: set_irq: core 0x0812, irq 3 => 3
[    0.130000] bcma: bus0: set_irq: core 0x082d, irq 4 => 4
[    0.130000] bcma: bus0: set_irq: core 0x0819, irq 5 => 5
[    0.130000] bcma: bus0: set_irq: core 0x0800, irq 2 => 2
[    0.130000] bcma: bus0: set_irq: core 0x0834, irq 2 => 2
[    0.130000] bcma: bus0: IRQ reconfiguration done
[    0.130000] bcma: core 0x0800, irq : 2(S)* 3  4  5  6  D  I 
[    0.130000] bcma: core 0x082c, irq : 2(S)  3  4  5  6  D  I*
[    0.130000] bcma: core 0x0812, irq : 2(S)  3* 4  5  6  D  I 
[    0.130000] bcma: core 0x082d, irq : 2(S)  3  4* 5  6  D  I 
[    0.130000] bcma: core 0x0819, irq : 2(S)  3  4  5* 6  D  I 
[    0.130000] bcma: core 0x082e, irq : 2(S)  3  4  5  6  D* I 
[    0.130000] bcma: core 0x0834, irq : 2(S)* 3  4  5  6  D  I 
[    0.130000] bcma: core 0x080e, irq : 2(S)  3  4  5  6  D  I*
[    0.130000] bcma: bus0: Bus registered
[    0.140000] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[    0.140000] jffs2: version 2.2 (NAND) (SUMMARY) (LZMA) (RTIME) (CMODE_PRIORITY) (c) 2001-2006 Red Hat, Inc.
[    0.140000] msgmni has been set to 246
[    0.140000] io scheduler noop registered
[    0.140000] io scheduler deadline registered (default)
[    0.140000] Serial: 8250/16550 driver, 16 ports, IRQ sharing enabled
[    0.160000] serial8250.0: ttyS0 at MMIO 0xb8000300 (irq = 2) is a U6_16550A
[    0.530000] console [ttyS0] enabled
[    0.730000] 6 bcm47xxpart partitions found on MTD device bcm47xxsflash
[    0.740000] Creating 6 MTD partitions on "bcm47xxsflash":
[    0.740000] 0x000000000000-0x000000020000 : "boot"
[    0.750000] 0x000000020000-0x000000ff0000 : "firmware"
[    0.760000] 0x00000002001c-0x00000002090c : "loader"
[    0.760000] 0x00000002090c-0x00000012e800 : "linux"
[    0.770000] mtd: partition "linux" must either start or end on erase block boundary or be smaller than an erase block -- forcing read-only
[    0.780000] 0x00000012e800-0x000000ff0000 : "rootfs"
[    0.790000] mtd: partition "rootfs" must either start or end on erase block boundary or be smaller than an erase block -- forcing read-only
[    0.800000] mtd: device 4 (rootfs) set to be root filesystem
[    0.810000] mtd: partition "rootfs_data" created automatically, ofs=0x2f0000, len=0xd00000
[    0.820000] 0x0000002f0000-0x000000ff0000 : "rootfs_data"
[    0.830000] 0x000000ff0000-0x000001000000 : "nvram"
[    0.830000] bgmac bcma0:1: Found PHY addr: 30 (NOREGS)
[    0.840000] bgmac bcma0:1: Support for Roboswitch not implemented
[    0.850000] libphy: bgmac mii bus: probed
[    0.860000] b53_common: found switch: BCM5325, rev 4
[    0.870000] bgmac: Broadcom 47xx GBit MAC driver loaded
[    0.880000] bcm47xx-wdt bcm47xx-wdt.0: BCM47xx Watchdog Timer enabled (30 seconds)
[    0.880000] TCP: cubic registered
[    0.890000] NET: Registered protocol family 17
[    0.890000] Bridge firewalling registered
[    0.900000] 8021q: 802.1Q VLAN Support v1.8
[    0.910000] VFS: Mounted root (squashfs filesystem) readonly on device 31:4.
[    0.920000] Freeing unused kernel memory: 216K (802ea000 - 80320000)
[    7.390000] jffs2: notice: (221) jffs2_build_xattr_subsystem: complete building xattr subsystem, 17 of xdatum (1 unchecked, 16 orphan) and 44 of xref (0 dead, 16 orphan) found.
[    8.440000] usbcore: registered new interface driver usbfs
[    8.440000] usbcore: registered new interface driver hub
[    8.450000] usbcore: registered new device driver usb
[    8.580000] SCSI subsystem initialized
[    8.590000] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    8.600000] ehci-platform: EHCI generic platform driver
[    8.600000] ehci-platform ehci-platform.0: EHCI Host Controller
[    8.610000] ehci-platform ehci-platform.0: new USB bus registered, assigned bus number 1
[    8.620000] ehci-platform ehci-platform.0: irq 5, io mem 0x18004000
[    8.640000] ehci-platform ehci-platform.0: USB 2.0 started, EHCI 1.00
[    8.640000] hub 1-0:1.0: USB hub found
[    8.650000] hub 1-0:1.0: 2 ports detected
[    8.660000] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[    8.660000] ohci-platform ohci-platform.0: Generic Platform OHCI Controller
[    8.670000] ohci-platform ohci-platform.0: new USB bus registered, assigned bus number 2
[    8.680000] ohci-platform ohci-platform.0: irq 5, io mem 0x18009000
[    8.740000] hub 2-0:1.0: USB hub found
[    8.740000] hub 2-0:1.0: 2 ports detected
[    8.750000] uhci_hcd: USB Universal Host Controller Interface driver
[    8.770000] usbcore: registered new interface driver usb-storage
[    9.030000] usb 1-1: new high-speed USB device number 2 using ehci-platform
[    9.440000] usb-storage 1-1:1.0: USB Mass Storage device detected
[    9.440000] scsi0 : usb-storage 1-1:1.0
[   10.480000] scsi 0:0:0:0: Direct-Access     WD       My Book 1110     2018 PQ: 0 ANSI: 4
[   10.500000] sd 0:0:0:0: [sda] 311207936 512-byte logical blocks: (159 GB/148 GiB)
[   10.510000] scsi 0:0:0:1: Enclosure         WD       SES Device       2018 PQ: 0 ANSI: 4
[   10.530000] sd 0:0:0:0: [sda] Write Protect is off
[   10.540000] sd 0:0:0:0: [sda] Mode Sense: 2b 00 10 08
[   10.550000] sd 0:0:0:0: [sda] No Caching mode page found
[   10.550000] sd 0:0:0:0: [sda] Assuming drive cache: write through
[   10.570000] sd 0:0:0:0: [sda] No Caching mode page found
[   10.580000] sd 0:0:0:0: [sda] Assuming drive cache: write through
[   10.650000]  sda: sda1 sda2
[   10.670000] sd 0:0:0:0: [sda] No Caching mode page found
[   10.680000] sd 0:0:0:0: [sda] Assuming drive cache: write through
[   10.690000] sd 0:0:0:0: [sda] Attached SCSI disk
[   11.030000] EXT4-fs (sda1): warning: mounting unchecked fs, running e2fsck is recommended
[   11.120000] EXT4-fs (sda1): mounted filesystem without journal. Opts: 
[   11.240000] Adding 1462248k swap on /dev/sda2.  Priority:-1 extents:1 across:1462248k 
[   12.830000] NET: Registered protocol family 10
[   12.840000] sit: IPv6 over IPv4 tunneling driver
[   12.870000] nf_conntrack version 0.5.0 (1978 buckets, 7912 max)
[   12.890000] ip6_tables: (C) 2000-2006 Netfilter Core Team
[   12.940000] u32 classifier
[   12.950000]     input device check on
[   12.950000]     Actions configured
[   12.960000] Mirror/redirect action on
[   13.010000] ip_tables: (C) 2000-2006 Netfilter Core Team
[   13.170000] xt_time: kernel timezone is -0000
[   13.190000] PPP generic driver version 2.4.2
[   13.190000] NET: Registered protocol family 24
[   19.670000] device eth0.1 entered promiscuous mode
[   19.680000] device eth0 entered promiscuous mode
[   19.700000] br-lan: port 1(eth0.1) entered forwarding state
[   19.700000] br-lan: port 1(eth0.1) entered forwarding state
[   21.700000] br-lan: port 1(eth0.1) entered forwarding state
[ 1009.480000] nf_conntrack: automatic helper assignment is deprecated and it will be removed soon. Use the iptables CT target to attach helpers instead.

[Love4Taylor]

when i use tomato ，it can use full of 256M RAM

[hauke]

Support for high memory is not fully implemented, feel free to send a patch.