Re: Help needed Linux-2.6 - MPC8540
From: info <hidden>
Date: 2005-10-24 16:34:06
Andy, Kumar Thank you for your help! GDAtech only give me linux-2.4.27 binary file for RMC-G8500 card, I try to port 2.6.13 for that card myself. Today, I download linux-2.6.13.tar.bz2 and patch-2.6.14-rc5.bz2 from kernel.org. I download http://lwn.net/Articles/146253/ "Patch: Gianfar PHY Layer Update". I download http://ozlabs.org/pipermail/linuxppc-embedded/2005-October/020593.html "[PATCH] 85xx PHY Platform Update" I patch and build them together get a linux 2.6.14-rc5 for MPC8540, try it on RMC-G8500 card U-Boot 1.1.1 (Aug 10 2004 - 11:01:21) Motorola PowerPC ProcessorID=00000000 Rev. PVR=80200020 Board: GDA Technologies RMC-G8500 [PowerQUICC III] CPU: 825 MHz CCB: 330 MHz DDR: 165 MHz LBC: 82 MHz L1 D-cache 32KB, L1 I-cache 32KB enabled. I2C: ready DRAM: 256 MB 8540 in PCI Host Mode. 8540 is the PCI Arbiter. FLASH: 8 MB L2 cache enabled: 256KB In: serial Out: serial Err: serial Net: MOTO ETHERNET Hit any key to stop autoboot: 0 RMCG8500#>tftp 200000 uImage; tftp 400000 your.ramdisk.u-boot; bootm 200000 400000 Using MOTO ETHERNET device TFTP from server 192.96.134.135; our IP address is 192.96.134.136 Filename 'uImage'. Load address: 0x200000 Loading: ################################################################# ################################################################# ################################################################# ################################ done Bytes transferred = 1159376 (11b0d0 hex) Using MOTO ETHERNET device TFTP from server 192.96.134.135; our IP address is 192.96.134.136 Filename 'your.ramdisk.u-boot'. Load address: 0x400000 Loading: ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ######################################## done Bytes transferred = 3530818 (35e042 hex) ## Booting image at 00200000 ... Image Name: Linux-2.6.14-rc5 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 1159312 Bytes = 1.1 MB Load Address: 00000000 Entry Point: 00000000 Verifying Checksum ... OK Uncompressing Kernel Image ... OK ## Loading RAMDisk Image at 00400000 ... Image Name: zzz ppc ramdisk Image Type: PowerPC Linux RAMDisk Image (gzip compressed) Data Size: 3530754 Bytes = 3.4 MB Load Address: 00000000 Entry Point: 00000000 Verifying Checksum ... OK Loading Ramdisk to 0fc54000, end 0ffb2002 ... OK Memory CAM mapping: CAM0=256Mb, CAM1=0Mb, CAM2=0Mb residual: 0Mb Linux version 2.6.14-rc5 (root@ppclinux) (gcc version 3.3.3 (Yellow Dog Linux 3.3.3-16.ydl.4)) #1 Mon Oct 24 13:22:56 EDT 2005 Built 1 zonelists Kernel command line: console=ttyS0,115200 root=/dev/ram rw doPci=1 OpenPIC Version 1.2 (1 CPUs and 60 IRQ sources) at fcfbb000 PID hash table entries: 2048 (order: 11, 32768 bytes) Dentry cache hash table entries: 65536 (order: 6, 262144 bytes) Inode-cache hash table entries: 32768 (order: 5, 131072 bytes) Memory: 253440k available (1904k kernel code, 516k data, 132k init, 0k highmem) Mount-cache hash table entries: 512 checking if image is initramfs...it isn't (no cpio magic); looks like an initrd softlockup thread 0 started up. Freeing initrd memory: 3448k freed NET: Registered protocol family 16 PCI: Probing PCI hardware Generic PHY: Registered new driver SCSI subsystem initialized Generic RTC Driver v1.07 i8042.c: i8042 controller self test timeout. Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing disabled ttyS0 at MMIO 0xfdf04500 (irq = 26) is a 16550A ttyS1 at MMIO 0xfdf04600 (irq = 26) is a 16550A io scheduler noop registered io scheduler anticipatory registered io scheduler deadline registered io scheduler cfq registered RAMDISK driver initialized: 16 RAM disks of 32768K size 1024 blocksize loop: loaded (max 8 devices) Gianfar MII Bus: probed !!STOP HERE
On Oct 23, 2005, at 10:39, info wrote:quoted
Junita Sorry to disturbed you. I find your question in the http:// ozlabs.org mail list. Have you fixed the bug in gianfar_phy.c? tempval = gfar_read(&priv-> regs-> dmactrl); tempval |= (DMACTRL_GRS | DMACTRL_GTS); gfar_write(&priv-> regs-> dmactrl, tempval); while (!(gfar_read(&priv-> regs-> ievent) & (IEVENT_GRSC | IEVENT_GTSC))) cpu_relax(); /* Reset MAC layer */ gfar_write(&priv-> regs-> maccfg1, MACCFG1_SOFT_RESET);I'm a bit confused by the statement above. The code you present is from gianfar.c, and is certainly not a bug. It is possible you are using an older version of the code, which has a bug, which is fixed by adding these lines above the code you show: tempval = gfar_read(&priv->regs->dmactrl); tempval &= ~(DMACTRL_GRS | DMACTRL_GTS); gfar_write(&priv->regs->dmactrl, tempval); This fixes a problem where setting GRS and GTS when they're already set doesn't initiate the graceful stop. But if you are using 2.6.13, you should have this fix. I suspect that, like I told Junita, you need to make sure the platform code has the right CCSRBAR value set up.quoted
I buy a RMC-G8500 card from GDAtech, I try to build linux-2.6.13.4 from kernel.org and meet the same problems as you had. I test the same code on freescale 8540_ADS board, it is good.Can you share some infomation of your progress?I'm not familiar with this card. Are you sure there's support for it in your source tree? Andy Fleming .
You need the corresponding patches that are in the netdev tree for the PHY subsystem.
- kumar
On Oct 24, 2005, at 9:49 AM, info wrote:
quoted hunk
Andy, Kumar I try this patch for RMC-G8500 from GDAtech, error message below: ---------------------------------------------------------------------- ----------- [root@ppclinux linux-2.6.13]# make uImage CHK include/linux/version.h CHK include/linux/compile.h CHK usr/initramfs_list CC drivers/net/gianfar.o drivers/net/gianfar.c: In function `gfar_probe': drivers/net/gianfar.c:217: error: structure has no member named `phy_reg_addr' drivers/net/gianfar.c: In function `init_phy': drivers/net/gianfar.c:452: error: structure has no member named `phyid' drivers/net/gianfar.c: In function `stop_gfar': drivers/net/gianfar.c:636: error: structure has no member named `interruptPHY' drivers/net/gianfar.c: In function `gfar_phy_startup_timer': drivers/net/gianfar.c:1818: error: structure has no member named `interruptPHY' drivers/net/gianfar.c:1826: error: structure has no member named `interruptPHY' make[2]: *** [drivers/net/gianfar.o] Error 1 make[1]: *** [drivers/net] Error 2 make: *** [drivers] Error 2 ---------------------------------------------------------------------- ----------- because??? /* Internal interrupts are all Level Sensitive, and Positive Polarity */diff --git a/include/linux/fsl_devices.h b/include/linux/fsl_devices.h --- a/include/linux/fsl_devices.h +++ b/include/linux/fsl_devices.h@@ -47,14 +47,19 @@ struct gianfar_platform_data { /* device specific information */ u32 device_flags; - u32 phy_reg_addr; /* board specific information */ u32 board_flags; - u32 phy_flags; - u32 phyid; - u32 interruptPHY; + const char *bus_id; u8 mac_addr[6]; +}; + ---------------------------------------------------------------------- ---------------------<This patch updates the 85xx platform code to support the new PHY Layer. < <Signed-off-by: Andy Fleming <afleming at freescale.com> <Signed-off-by: Kumar Gala <Kumar.gala at freescale.com> < < <diff --git a/arch/ppc/platforms/85xx/mpc8540_ads.c b/arch/ppc/ platforms/85xx/mpc8540_ads.c <--- a/arch/ppc/platforms/85xx/mpc8540_ads.c <+++ b/arch/ppc/platforms/85xx/mpc8540_ads.c <@@ -53,6 +53,10 @@ < < #include <syslib/ppc85xx_setup.h> < <+static const char *GFAR_PHY_0 = "phy0:0"; <+static const char *GFAR_PHY_1 = "phy0:1"; <+static const char *GFAR_PHY_3 = "phy0:3"; <+ < /* ********************************************************************** ** < * < * Setup the architecture <@@ -64,6 +68,7 @@ mpc8540ads_setup_arch(void) _______________________________________________ Linuxppc-embedded mailing list Linuxppc-embedded@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-embedded