From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from web37105.mail.mud.yahoo.com (web37105.mail.mud.yahoo.com [209.191.85.107]) by ozlabs.org (Postfix) with SMTP id 4D12E679F2 for ; Fri, 12 May 2006 06:13:30 +1000 (EST) Message-ID: <20060511201329.23866.qmail@web37105.mail.mud.yahoo.com> Date: Thu, 11 May 2006 13:13:29 -0700 (PDT) From: Om Vadlapatla Subject: Failure of 2 BAT schemes to enable D-cache To: "linuxppc-embedded@ozlabs.org" , "U-Boot-Users@lists.sourceforge.net" MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="0-559561004-1147378409=:23616" List-Id: Linux on Embedded PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , --0-559561004-1147378409=:23616 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Content-Id: Content-Disposition: inline Hello, Processor: MPC8270 Debugger: Abatron BDI 2000 Board & processor Initialization by: Uboot 1.1.2 Aim: I try to enable d-cache at the Register level with out having any exceptions. I will write my own code to compile into the kernel that is no longer supported by Montavista (3.0) provided it works when I manipulate the registers. Proceedure: ~in window 1 (DIP window) I reset the processor then the flash mem loads the U-boot version 1.1.2. I do not load the OS so the system is running at the U-boot prompt. => ~In window 2 (BDI debugger window) I use the Abarton BDI to force the PPC to enter debug mode by issuing - "halt" instruction. //this is the BDI window for both tests when "halt" MPC8270>halt Target CPU : MPC8280/MGT5200 (Zeppo) Target state : debug mode Debug entry cause : COP halt Current PC : 0x0ffe935c Current CR : 0x44004044 Current MSR : 0x0000b002 Current LR : 0x0ffe13a8 ~now by issueing commands from the BDI I try to set the BATs and the MMU as follows: I tried two BAT schemes on the abatron that are attached in BAT_register_setting_table.txt & 8280_InitMMU.cmm : ------------------------------------------------------- Test 1:- For seting DBAT regs by BDI commands ccording to (BAT_register_setting_table.txt)or: // initialize bats MPC8270>rm dbat0u 0xffe0003f MPC8270>rm dbat0l 0xffe00022 MPC8270>rm dbat1u 0x00001fff MPC8270>rm dbat1l 0x00000002 MPC8270>rm dbat2u 0x300007ff MPC8270>rm dbat2l 0x30000002 MPC8270>rm dbat3u 0x400003FF MPC8270>rm dbat3l 0x40000022 MPC8270>rm dbat4u 0xFB0001FF MPC8270>rm dbat4l 0xFB000022 MPC8270>rm dbat5u 0xFE400003 MPC8270>rm dbat5l 0xFE400022 MPC8270>rm dbat6u 0xF0000003 MPC8270>rm dbat6l 0xF0000022 MPC8270>rm dbat7u 0xFF000003 MPC8270>rm dbat7l 0xFF000022 MPC8270>rm hid0 0x8000c088 // set HID0 to enable // I & D Cache MPC8270>go // to let the processor run I check the PC and it is at 0x200 the Machine check exception. Please post suggestions to avoid the Exception!! ------------------------------------------------------- Test 2:- commands I issued throught Abatron BDI window: // initialization of BATs refer to (8280_InitMMU.cmm) // please keep in mind that even though these BAT // initialization are for a Stand alone systems I only // plan to test if I am able to initialize the data // cache without the 0x200 (Machine check exception) // exception. // 60-x SDRAM IBAT MPC8270>rm ibat0u 0x000003fe // IBAT0U 32MB MPC8270>rm ibat0l 0x00000002 // IBAT0L R/W //IMMR IBAT MPC8270>rm ibat1u 0x04700002 // IBAT1U 128KB MPC8270>rm ibat1l 0x04700022 // IBAT0L I R/W //Flash IBAT MPC8270>rm ibat3u 0xff0000fe // IBAT3U 8MB MPC8270>rm ibat3l 0xff000001 // IBAT3L R/O //60-x SDRAM DBAT MPC8270>rm dbat0u 0x000007fe // DBAT0U 16MB MPC8270>rm dbat0l 0x00000002 // DBAT0L R/W //Local SDRAM DBAT MPC8270>rm dbat1u 0x0400007e //DBAT1U MPC8270>rm dbat1l 0x0400002a //DBAT1L I,G R/W //BCSR DBAT MPC8270>rm dbat2u 0x0450007e //DBAT2U BCSR + IMMR space MPC8270>rm dbat2l 0x0450002a //DBAT2L I,G R/W //Flash DBAT MPC8270>rm dbat3u 0xff0000fe //DBAT3U 8MB MPC8270>rm dbat3l 0xff000022 //DBAT3L I R/W // the Bats initialize fine no problem till here // enable MMU (EE + ME + DR +IR) MPC8270>rm msr 0x9030 // I feel I may be messing it up here (can some one // please correct me?) MPC8270>go // this is to let the processor run // however ends up restarting the system // I dont issue the foll command coz of reset MPC8270>rm hid0 0x8000c088 // this is to set and // enable the I & D Caches This is how the DIP window where the boot prompt is looks after this test 2:- See attached file: DIP_outPut_test2_BATs.txt Have I wrongly inilialized the MSR? ------------------------------------------------------- Please post comments and suggestions of how I can initialized MMU for d-cache performance. I am new to this. Thanky you, Best regards, Om Vadlapatla __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com --0-559561004-1147378409=:23616 Content-Type: application/octet-stream; name="8280_InitMMU.cmm" Content-Transfer-Encoding: base64 Content-Description: 790078158-8280_InitMMU.cmm Content-Disposition: attachment; filename="8280_InitMMU.cmm" OyAqKioqKioqKioqKioqKioqKioqKioqKioqKioqKioqKg0KOyBJbml0aWFs aXplIEJBVHMNCjsgKioqKioqKioqKioqKioqKioqKioqKioqKioqKioqKioN Cg0KSU5JVF9NTVU6DQoNCjsgKioqIEludmFsaWRhdGUgVExCcw0KDQpkLmEg MHgxMDAwMAlhZGRpCXIyLDAsMzINCmQuYSAweDEwMDA0CW10Y3RyCXIyCQk7 IExvYWQgQ1RSIHdpdGggMzIuDQpkLmEgMHgxMDAwOAlhZGRpCXIzLDAsMAk7 IFVzZSByMyBhcyB0aGUgdGxiIGluZGV4DQpkLmEgMHgxMDAwQwl0bGJpZQly MyAgICAgICAgICAgICAgICA7IGludmFsaWRhdGUgdGhlIHRsYiBlbnRyeQ0K ZC5hIDB4MTAwMTAJc3luYw0KZC5hIDB4MTAwMTQJYWRkaQlyMyxyMywweDEw MDAgICAgICA7IGluY3JlbWVudCB0aGUgaW5kZXgNCmQuYSAweDEwMDE4CWJk bnoJMHgxMDAwQw0KZC5hIDB4MTAwMUMJYgkweDEwMDFDDQoNCnIucyBJUCAw eDEwMDAwDQpnbw0Kd2FpdCAxbXMNCmJyZWFrDQoNCg0KOyAqKiogQ2xlYXIg YWxsIFVwcGVyIEJBVHMNCmQucyBTUFI6MHgyMTggJWwgMAk7IERCQVQwVQ0K ZC5zIFNQUjoweDIxQSAlbCAwCTsgREJBVDFVDQpkLnMgU1BSOjB4MjFDICVs IDAJOyBEQkFUMlUNCmQucyBTUFI6MHgyMUUgJWwgMAk7IERCQVQzVQ0KZC5z IFNQUjoweDIzOCAlbCAwCTsgREJBVDRVDQpkLnMgU1BSOjB4MjNBICVsIDAJ OyBEQkFUNVUNCmQucyBTUFI6MHgyM0MgJWwgMAk7IERCQVQ2VQ0KZC5zIFNQ UjoweDIzRSAlbCAwCTsgREJBVDdVDQoNCmQucyBTUFI6MHgyMTAgJWwgMAk7 IElCQVQwVQ0KZC5zIFNQUjoweDIxMiAlbCAwCTsgSUJBVDFVDQpkLnMgU1BS OjB4MjE0ICVsIDAJOyBJQkFUMlUNCmQucyBTUFI6MHgyMTYgJWwgMAk7IElC QVQzVQ0KZC5zIFNQUjoweDIzMCAlbCAwCTsgSUJBVDRVDQpkLnMgU1BSOjB4 MjMyICVsIDAJOyBJQkFUNVUNCmQucyBTUFI6MHgyMzQgJWwgMAk7IElCQVQ2 VQ0KZC5zIFNQUjoweDIzNiAlbCAwCTsgSUJBVDdVDQoNCjsgNjAteCBTRFJB TSBJQkFUDQpkLnMgU1BSOjB4MjEwICVsIDB4MDAwMDAzRkUgCTsgSUJBVDBV IDMyTUINCmQucyBTUFI6MHgyMTEgJWwgMHgwMDAwMDAwMiAJOyBJQkFUMEwg Ui9XDQoNCjsgSU1NUiBJQkFUDQpkLnMgU1BSOjB4MjEyICVsIDB4MDQ3MDAw MDIJOyBJQkFUMVUgMTI4S0INCmQucyBTUFI6MHgyMTMgJWwgMHgwNDcwMDAy Mgk7IElCQVQwTCBJIFIvVw0KDQo7IEZsYXNoIElCQVQNCmQucyBTUFI6MHgy MTYgJWwgMHhGRjAwMDBGRQk7IElCQVQzVSA4TUINCmQucyBTUFI6MHgyMTcg JWwgMHhGRjAwMDAwMQk7IElCQVQzTCBSL08NCg0KOyA2MC14IFNEUkFNIERC QVQNCmQucyBTUFI6MHgyMTggJWwgMHgwMDAwMDdGRQk7IERCQVQwVSAxNk1C DQpkLnMgU1BSOjB4MjE5ICVsIDB4MDAwMDAwMDIJOyBEQkFUMEwgUi9XDQoN CjsgTG9jYWwgU0RSQU0gREJBVA0KZC5zIFNQUjoweDIxQSAlbCAweDA0MDAw MDdFCTsgREJBVDFVDQpkLnMgU1BSOjB4MjFCICVsIDB4MDQwMDAwMkEJOyBE QkFUMUwgSSxHIFIvVw0KDQo7IEJDU1IgREJBVA0KZC5zIFNQUjoweDIxQyAl bCAweDA0NTAwMDdFCTsgREJBVDJVIEJDU1IgKyBJTU1SIHNwYWNlDQpkLnMg U1BSOjB4MjFEICVsIDB4MDQ1MDAwMkEJOyBEQkFUMkwgSSxHIFIvVw0KDQo7 IEZsYXNoIERCQVQNCmQucyBTUFI6MHgyMUUgJWwgMHhGRjAwMDBGRQk7IERC QVQzVSA4TUINCmQucyBTUFI6MHgyMUYgJWwgMHhGRjAwMDAyMgk7IERCQVQz TCBJIFIvVw0KDQo7IEVuYWJsZSBNTVUNCjtyLnMgTVNSICAweDkwMzAgICA7 IEVFICsgTUUgKyBEUiArIElSDQo= --0-559561004-1147378409=:23616 Content-Type: text/plain; name="BAT_register_setting_table.txt" Content-Description: 79201750-BAT_register_setting_table.txt Content-Disposition: inline; filename="BAT_register_setting_table.txt" BAT register setting table I&D-BAT register setting (I-BAT register can not write W and G bit) |---------------------------------------------------------------------------------------------| |BAT-No |Base address |Memory Size |WIMG | BAT U |BAT L |Remark | |-------|---------------|---------------|---------|-------------|---------------|-------------| |0 |0xFFE00000 |2Mbyte |0100 | FFE0003F |FFE00022 |BOOT Memory | |-------|---------------|---------------|---------|-------------|---------------|-------------| |1 |0x00000000 |256Mbyte |0000 | 00001FFF |00000002 |60x-SDRAM | |-------|---------------|---------------|---------|-------------|---------------|-------------| |2 |0x30000000 |64Mbyte |0000 | 300007FF |30000002 |Local-SDRAM | |-------|---------------|---------------|---------|-------------|---------------|-------------| |3 |0x40000000 |20Mbyte |0100 | 400003FF |40000022 |SDH-I/O | |-------|---------------|---------------|---------|-------------|---------------|-------------| |4 |0xFB000000 |12Mbyte |0100 | FB0001FF |FB000022 |RTC and FPGA | |-------|---------------|---------------|---------|-------------|---------------|-------------| |5 |0xFE400000 |1Kbyte |0100 | FE400003 |FE400022 |Compact-Flash| |-------|---------------|---------------|---------|-------------|---------------|-------------| |6 |0xF0000000 |128Kbyte |0100 | F0000003 |F0000022 |CPU(Master) | |-------|---------------|---------------|---------|-------------|---------------|-------------| |7 |0xFF000000 |128Kbyte |0100 | FF000003 |FF000022 |CPU(Slave)** | |---------------------------------------------------------------------------------------------| **No.7 of BAT register should be setting for FW4160 --0-559561004-1147378409=:23616 Content-Type: text/plain; name="DIP_outPut_Test1_BATs.txt" Content-Description: 2552527863-DIP_outPut_Test1_BATs.txt Content-Disposition: inline; filename="DIP_outPut_Test1_BATs.txt" $ telnet 100.0.4.26 5003 Trying 100.0.4.26... Connected to 100.0.4.26. Escape character is '^]'. U-Boot 1.1.2 (Jan 27 2006 - 14:27:57) ### Release 1.1.5 ### MPC8260 Reset Status: Bus Monitor, External Soft, External Hard MPC8260 Clock Configuration - Bus-to-Core Mult 4x, VCO Div 2, 60x Bus Freq 25-75 , Core Freq 100-300 - dfbrg 1, corecnf 0x1a, busdf 5, cpmdf 1, plldf 0, pllmf 5 - vco_out 400000002, scc_clk 100000000, brg_clk 25000000 - cpu_clk 266666668, cpm_clk 200000001, bus_clk 66666667 CPU: MPC8260 (HiP7 Rev 14, Mask 1.0 1K49M) at 266.666 MHz Board: Fujitsu FW4060 I2C: ready DRAM: 256 MB FLASH: 2 MB In: serial Out: serial Err: serial Net: FCC2 ETHERNET IDE: Bus 0: OK Device 0: Model: Hitachi XXM2.3.0 Firm: Rev 3.00 Ser#: X0405 20050304185152 Type: Removable Hard Disk Capacity: 61.1 MB = 0.0 GB (125184 x 512) Hit any key to stop autoboot: 0 => Bad trap at PC: fffffffc, SR: 1000, vector=800 NIP: FFFFFFFC XER: 20000000 LR: 00001088 REGS: 0ffa7dc0 TRAP: 0800 DAR: 0FFE55FC MSR: 00001000 EE: 0 PR: 0 FP: 0 ME: 1 IR/DR: 00 GPR00: 0000A000 0FFA7EB0 00000004 00000000 0FFF0E80 0000000A FFFFFFFD FFFFFFFF GPR08: 0FFA7C18 F0000080 00008000 F0000090 00000000 0403FF80 0FFF6000 101C8000 GPR16: 00000000 00000000 00000000 0100FFE0 00000000 00000001 00000000 00000000 GPR24: 00000000 FFFFFFFF 00000001 00000003 0FFFEFC8 0FFA7F64 0FFF74AC 0FFF0E80 Call backtrace: Exception in kernel pc fffffffc signal 0 U-Boÿ U-Boot 1.1.2 (Jan 27 2006 - 14:27:57) ### Release 1.1.5 ### MPC8260 Reset Status: External Soft, External Hard MPC8260 Clock Configuration - Bus-to-Core Mult 4x, VCO Div 2, 60x Bus Freq 25-75 , Core Freq 100-300 - dfbrg 1, corecnf 0x1a, busdf 5, cpmdf 1, plldf 0, pllmf 5 - vco_out 400000002, scc_clk 100000000, brg_clk 25000000 - cpu_clk 266666668, cpm_clk 200000001, bus_clk 66666667 CPU: MPC8260 (HiP7 Rev 14, Mask 1.0 1K49M) at 266.666 MHz Board: Fujitsu FW4060 I2C: ready DRAM: 256 MB FLASH: 2 MB In: serial Out: serial Err: serial Net: FCC2 ETHERNET IDE: Bus 0: OK Device 0: Model: Hitachi XXM2.3.0 Firm: Rev 3.00 Ser#: X0405 20050304185152 Type: Removable Hard Disk Capacity: 61.1 MB = 0.0 GB (125184 x 512) Hit any key to stop autoboot: 0 => Bad trap at PC: fffffffc, SR: 1000, vector=800 NIP: FFFFFFFC XER: 00000000 LR: 00001088 REGS: 0ffa7dc0 TRAP: 0800 DAR: 0FFE55FC MSR: 00001000 EE: 0 PR: 0 FP: 0 ME: 1 IR/DR: 00 GPR00: 0000A000 0FFA7EB0 00000004 00000000 0FFF0E80 0000000A FFFFFFFD 00000000 GPR08: 00000002 F0000080 00008000 F0000090 00000000 0403FF80 0FFF6000 101C8000 GPR16: 00000000 00000000 00000000 0100FFE0 00003002 00000001 00000000 0FFCB098 GPR24: 0FFCE410 00000001 00000001 00000003 0FFFEFC8 0FFA7F64 0FFF74AC 0FFF0E80 Call backtrace: Exception in kernel pc fffffffc signal 0 U-Boot 1.1.2 (Jan 27 2006 - 14:ò --0-559561004-1147378409=:23616--