diff options
| -rw-r--r-- | CHANGELOG | 12 | ||||
| -rw-r--r-- | README | 48 | ||||
| -rw-r--r-- | board/trab/flash.c | 10 | ||||
| -rw-r--r-- | common/main.c | 17 | ||||
| -rw-r--r-- | cpu/arm920t/start.S | 6 | ||||
| -rw-r--r-- | drivers/pci.c | 212 |
6 files changed, 178 insertions, 127 deletions
@@ -2,6 +2,18 @@ Changes since U-Boot 0.3.1: ====================================================================== +* Fix data abort exception handling for arm920t CPU + +* Fix alignment problems with flash driver for TRAB board + +* Patch by Donald White, 21 May 2003: + fix calculation of base address in pci_hose_config_device() + +* Fix bug in command line parsing: "cmd1;cmd2" is supposed to always + execute "cmd2", even if "cmd1" fails. Note that this is different + to "run var1 var2" where the contents of "var2" will NOT be + executed when a command in "var1" fails. + * Add zero-copy ramdisk support (requires corresponding kernel support!) * Patch by Kyle Harris, 20 May 2003: @@ -2048,6 +2048,48 @@ Please note that changes to some configuration parameters may take only effect after the next boot (yes, that's just like Windoze :-). +Command Line Parsing: +===================== + +There are two different command line parsers available with U-Boot: +the old "simple" one, and the much more pwerful "hush" shell: + +Old, simple command line parser: +-------------------------------- + +- supports environment variables (through setenv / saveenv commands) +- several commands on one line, separated by ';' +- variable substitution using "... $(name) ..." syntax +- special characters ('$', ';') can be escaped by prefixing with '\', + for example: + setenv bootcmd bootm \$(address) +- You can also escape text by enclosing in single apostrophes, for example: + setenv addip 'setenv bootargs $bootargs ip=$ipaddr:$serverip:$gatewayip:$netmask:$hostname::off' + +Hush shell: +----------- + +- similar to Bourne shell, with control structures like + if...then...else...fi, for...do...done; while...do...done, + until...do...done, ... +- supports environment ("global") variables (through setenv / saveenv + commands) and local shell variables (through standard shell syntax + "name=value"); only environment variables can be used with "run" + command + +General rules: +-------------- + +(1) If a command line (or an environment variable executed by a "run" + command) contains several commands separated by semicolon, and + one of these commands fails, then the remaining commands will be + executed anyway. + +(2) If you execute several variables with one call to run (i. e. + calling run with a list af variables as arguments), any failing + command will cause "run" to terminate, i. e. the remaining + variables are not executed. + Note for Redundant Ethernet Interfaces: ======================================= @@ -2563,9 +2605,9 @@ Minicom warning: ================ Over time, many people have reported problems when trying to used the -"minicom" terminal emulation program for serial download. I (wd) -consider minicom to be broken, and recommend not to use it. Under -Unix, I recommend to use CKermit for general purpose use (and +"minicom" terminal emulation program for serial download. I (wd) +consider minicom to be broken, and recommend not to use it. Under +Unix, I recommend to use C-Kermit for general purpose use (and especially for kermit binary protocol download ("loadb" command), and use "cu" for S-Record download ("loads" command). diff --git a/board/trab/flash.c b/board/trab/flash.c index 27c2a5b..1550e17 100644 --- a/board/trab/flash.c +++ b/board/trab/flash.c @@ -431,7 +431,15 @@ int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt) * handle word aligned part */ while (cnt >= 4) { - data = *((vu_long *) src); + if (((ulong)src) & 0x3) { + for (i = 0; i < 4; i++) { + ((char *)&data)[i] = ((vu_char *)src)[i]; + } + } + else { + data = *((vu_long *) src); + } + if ((rc = write_word (info, wp, data)) != 0) { return (rc); } diff --git a/common/main.c b/common/main.c index fe4ebb4..6192dff 100644 --- a/common/main.c +++ b/common/main.c @@ -746,9 +746,9 @@ int run_command (const char *cmd, int flag) char finaltoken[CFG_CBSIZE]; char *str = cmdbuf; char *argv[CFG_MAXARGS + 1]; /* NULL terminated */ - int argc; + int argc, inquotes; int repeatable = 1; - int inquotes; + int rc = 0; #ifdef DEBUG_PARSER printf ("[RUN_COMMAND] cmd[%p]=\"", cmd); @@ -817,13 +817,15 @@ int run_command (const char *cmd, int flag) /* Look up command in command table */ if ((cmdtp = find_cmd(argv[0])) == NULL) { printf ("Unknown command '%s' - try 'help'\n", argv[0]); - return -1; /* give up after bad command */ + rc = -1; /* give up after bad command */ + continue; } /* found - check max args */ if (argc > cmdtp->maxargs) { printf ("Usage:\n%s\n", cmdtp->usage); - return -1; + rc = -1; + continue; } #if (CONFIG_COMMANDS & CFG_CMD_BOOTD) @@ -834,7 +836,8 @@ int run_command (const char *cmd, int flag) #endif if (flag & CMD_FLAG_BOOTD) { printf ("'bootd' recursion detected\n"); - return -1; + rc = -1; + continue; } else flag |= CMD_FLAG_BOOTD; @@ -843,7 +846,7 @@ int run_command (const char *cmd, int flag) /* OK - call function to do the command */ if ((cmdtp->cmd) (cmdtp, flag, argc, argv) != 0) { - return (-1); + rc = -1; } repeatable &= cmdtp->repeatable; @@ -853,7 +856,7 @@ int run_command (const char *cmd, int flag) return 0; /* if stopped then not repeatable */ } - return repeatable; + return rc ? rc : repeatable; } /****************************************************************************/ diff --git a/cpu/arm920t/start.S b/cpu/arm920t/start.S index 4a4825a..ed16176 100644 --- a/cpu/arm920t/start.S +++ b/cpu/arm920t/start.S @@ -317,17 +317,15 @@ cpu_init_crit: .macro bad_save_user_regs sub sp, sp, #S_FRAME_SIZE stmia sp, {r0 - r12} @ Calling r0-r12 - add r8, sp, #S_PC - ldr r2, _armboot_end add r2, r2, #CONFIG_STACKSIZE sub r2, r2, #8 - ldmia r2, {r2 - r4} @ get pc, cpsr, old_r0 + ldmia r2, {r2 - r3} @ get pc, cpsr add r0, sp, #S_FRAME_SIZE @ restore sp_SVC add r5, sp, #S_SP mov r1, lr - stmia r5, {r0 - r4} @ save sp_SVC, lr_SVC, pc, cpsr, old_r + stmia r5, {r0 - r3} @ save sp_SVC, lr_SVC, pc, cpsr mov r0, sp .endm diff --git a/drivers/pci.c b/drivers/pci.c index 9eaaa15..289db8f 100644 --- a/drivers/pci.c +++ b/drivers/pci.c @@ -2,7 +2,7 @@ * (C) Copyright 2001 Sysgo Real-Time Solutions, GmbH <www.elinos.com> * Andreas Heppel <aheppel@sysgo.de> * - * (C) Copyright 2002 + * (C) Copyright 2002, 2003 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. * * See file CREDITS for list of people who contributed to this @@ -48,12 +48,12 @@ * */ -#define PCI_HOSE_OP(rw, size, type) \ -int pci_hose_##rw##_config_##size(struct pci_controller *hose, \ - pci_dev_t dev, \ - int offset, type value) \ -{ \ - return hose->rw##_##size(hose, dev, offset, value); \ +#define PCI_HOSE_OP(rw, size, type) \ +int pci_hose_##rw##_config_##size(struct pci_controller *hose, \ + pci_dev_t dev, \ + int offset, type value) \ +{ \ + return hose->rw##_##size(hose, dev, offset, value); \ } PCI_HOSE_OP(read, byte, u8 *) @@ -63,18 +63,18 @@ PCI_HOSE_OP(write, byte, u8) PCI_HOSE_OP(write, word, u16) PCI_HOSE_OP(write, dword, u32) -#define PCI_OP(rw, size, type, error_code) \ -int pci_##rw##_config_##size(pci_dev_t dev, int offset, type value) \ -{ \ - struct pci_controller *hose = pci_bus_to_hose(PCI_BUS(dev)); \ - \ - if (!hose) \ - { \ - error_code; \ - return -1; \ - } \ - \ - return pci_hose_##rw##_config_##size(hose, dev, offset, value); \ +#define PCI_OP(rw, size, type, error_code) \ +int pci_##rw##_config_##size(pci_dev_t dev, int offset, type value) \ +{ \ + struct pci_controller *hose = pci_bus_to_hose(PCI_BUS(dev)); \ + \ + if (!hose) \ + { \ + error_code; \ + return -1; \ + } \ + \ + return pci_hose_##rw##_config_##size(hose, dev, offset, value); \ } PCI_OP(read, byte, u8 *, *value = 0xff) @@ -84,40 +84,40 @@ PCI_OP(write, byte, u8, ) PCI_OP(write, word, u16, ) PCI_OP(write, dword, u32, ) -#define PCI_READ_VIA_DWORD_OP(size, type, off_mask) \ -int pci_hose_read_config_##size##_via_dword(struct pci_controller *hose, \ - pci_dev_t dev, \ - int offset, type val) \ -{ \ - u32 val32; \ - \ - if (pci_hose_read_config_dword(hose, dev, offset & 0xfc, &val32) < 0) \ - return -1; \ - \ - *val = (val32 >> ((offset & (int)off_mask) * 8)); \ - \ - return 0; \ +#define PCI_READ_VIA_DWORD_OP(size, type, off_mask) \ +int pci_hose_read_config_##size##_via_dword(struct pci_controller *hose,\ + pci_dev_t dev, \ + int offset, type val) \ +{ \ + u32 val32; \ + \ + if (pci_hose_read_config_dword(hose, dev, offset & 0xfc, &val32) < 0)\ + return -1; \ + \ + *val = (val32 >> ((offset & (int)off_mask) * 8)); \ + \ + return 0; \ } -#define PCI_WRITE_VIA_DWORD_OP(size, type, off_mask, val_mask) \ -int pci_hose_write_config_##size##_via_dword(struct pci_controller *hose, \ - pci_dev_t dev, \ - int offset, type val) \ -{ \ - u32 val32, mask, ldata; \ - \ - if (pci_hose_read_config_dword(hose, dev, offset & 0xfc, &val32) < 0) \ - return -1; \ - \ - mask = val_mask; \ +#define PCI_WRITE_VIA_DWORD_OP(size, type, off_mask, val_mask) \ +int pci_hose_write_config_##size##_via_dword(struct pci_controller *hose,\ + pci_dev_t dev, \ + int offset, type val) \ +{ \ + u32 val32, mask, ldata; \ + \ + if (pci_hose_read_config_dword(hose, dev, offset & 0xfc, &val32) < 0)\ + return -1; \ + \ + mask = val_mask; \ ldata = (((unsigned long)val) & mask) << ((offset & (int)off_mask) * 8);\ - mask <<= ((mask & (int)off_mask) * 8); \ - val32 = (val32 & ~mask) | ldata; \ - \ - if (pci_hose_write_config_dword(hose, dev, offset & 0xfc, val32) < 0) \ - return -1; \ - \ - return 0; \ + mask <<= ((mask & (int)off_mask) * 8); \ + val32 = (val32 & ~mask) | ldata; \ + \ + if (pci_hose_write_config_dword(hose, dev, offset & 0xfc, val32) < 0)\ + return -1; \ + \ + return 0; \ } PCI_READ_VIA_DWORD_OP(byte, u8 *, 0x03) @@ -143,13 +143,12 @@ void pci_register_hose(struct pci_controller* hose) *phose = hose; } -struct pci_controller* pci_bus_to_hose(int bus) +struct pci_controller *pci_bus_to_hose (int bus) { struct pci_controller *hose; for (hose = hose_head; hose; hose = hose->next) - if (bus >= hose->first_busno && - bus <= hose->last_busno) + if (bus >= hose->first_busno && bus <= hose->last_busno) return hose; return NULL; @@ -178,16 +177,13 @@ pci_dev_t pci_find_devices(struct pci_device_id *ids, int index) #endif bdf += PCI_BDF(0,0,1)) { - if (!PCI_FUNC(bdf)) - { + if (!PCI_FUNC(bdf)) { pci_read_config_byte(bdf, PCI_HEADER_TYPE, &header_type); found_multi = header_type & 0x80; - } - else - { + } else { if (!found_multi) continue; } @@ -228,22 +224,20 @@ pci_dev_t pci_find_device(unsigned int vendor, unsigned int device, int index) * */ -unsigned long pci_hose_phys_to_bus(struct pci_controller* hose, - unsigned long phys_addr, - unsigned long flags) +unsigned long pci_hose_phys_to_bus (struct pci_controller *hose, + unsigned long phys_addr, + unsigned long flags) { struct pci_region *res; unsigned long bus_addr; int i; - if (!hose) - { - printf("pci_hose_phys_to_bus: %s\n", "invalid hose"); + if (!hose) { + printf ("pci_hose_phys_to_bus: %s\n", "invalid hose"); goto Done; } - for (i=0; i<hose->region_count; i++) - { + for (i = 0; i < hose->region_count; i++) { res = &hose->regions[i]; if (((res->flags ^ flags) & PCI_REGION_TYPE) != 0) @@ -252,15 +246,14 @@ unsigned long pci_hose_phys_to_bus(struct pci_controller* hose, bus_addr = phys_addr - res->phys_start + res->bus_start; if (bus_addr >= res->bus_start && - bus_addr < res->bus_start + res->size) - { + bus_addr < res->bus_start + res->size) { return bus_addr; } } - printf("pci_hose_phys_to_bus: %s\n", "invalid physical address"); + printf ("pci_hose_phys_to_bus: %s\n", "invalid physical address"); - Done: +Done: return 0; } @@ -271,29 +264,26 @@ unsigned long pci_hose_bus_to_phys(struct pci_controller* hose, struct pci_region *res; int i; - if (!hose) - { - printf("pci_hose_bus_to_phys: %s\n", "invalid hose"); + if (!hose) { + printf ("pci_hose_bus_to_phys: %s\n", "invalid hose"); goto Done; } - for (i=0; i<hose->region_count; i++) - { + for (i = 0; i < hose->region_count; i++) { res = &hose->regions[i]; if (((res->flags ^ flags) & PCI_REGION_TYPE) != 0) continue; if (bus_addr >= res->bus_start && - bus_addr < res->bus_start + res->size) - { + bus_addr < res->bus_start + res->size) { return bus_addr - res->bus_start + res->phys_start; } } - printf("pci_hose_bus_to_phys: %s\n", "invalid physical address"); + printf ("pci_hose_bus_to_phys: %s\n", "invalid physical address"); - Done: +Done: return 0; } @@ -311,14 +301,14 @@ int pci_hose_config_device(struct pci_controller *hose, unsigned char pin; int bar, found_mem64; - DEBUGF("PCI Config: I/O=0x%lx, Memory=0x%lx, Command=0x%lx\n", io, mem, command); + DEBUGF ("PCI Config: I/O=0x%lx, Memory=0x%lx, Command=0x%lx\n", + io, mem, command); - pci_hose_write_config_dword(hose, dev, PCI_COMMAND, 0); + pci_hose_write_config_dword (hose, dev, PCI_COMMAND, 0); - for (bar = PCI_BASE_ADDRESS_0; bar < PCI_BASE_ADDRESS_5; bar += 4) - { - pci_hose_write_config_dword(hose, dev, bar, 0xffffffff); - pci_hose_read_config_dword(hose, dev, bar, &bar_response); + for (bar = PCI_BASE_ADDRESS_0; bar < PCI_BASE_ADDRESS_5; bar += 4) { + pci_hose_write_config_dword (hose, dev, bar, 0xffffffff); + pci_hose_read_config_dword (hose, dev, bar, &bar_response); if (!bar_response) continue; @@ -326,51 +316,51 @@ int pci_hose_config_device(struct pci_controller *hose, found_mem64 = 0; /* Check the BAR type and set our address mask */ - if (bar_response & PCI_BASE_ADDRESS_SPACE) - { + if (bar_response & PCI_BASE_ADDRESS_SPACE) { bar_size = ~(bar_response & PCI_BASE_ADDRESS_IO_MASK) + 1; - bar_value = io; - + /* round up region base address to a multiple of size */ io = ((io - 1) | (bar_size - 1)) + 1; - } - else - { - if ( (bar_response & PCI_BASE_ADDRESS_MEM_TYPE_MASK) == - PCI_BASE_ADDRESS_MEM_TYPE_64) + bar_value = io; + /* compute new region base address */ + io = io + bar_size; + } else { + if ((bar_response & PCI_BASE_ADDRESS_MEM_TYPE_MASK) == + PCI_BASE_ADDRESS_MEM_TYPE_64) found_mem64 = 1; bar_size = ~(bar_response & PCI_BASE_ADDRESS_MEM_MASK) + 1; - bar_value = mem; + /* round up region base address to multiple of size */ mem = ((mem - 1) | (bar_size - 1)) + 1; + bar_value = mem; + /* compute new region base address */ + mem = mem + bar_size; } /* Write it out and update our limit */ - pci_hose_write_config_dword(hose, dev, bar, bar_value); + pci_hose_write_config_dword (hose, dev, bar, bar_value); - if (found_mem64) - { + if (found_mem64) { bar += 4; - pci_hose_write_config_dword(hose, dev, bar, 0x00000000); + pci_hose_write_config_dword (hose, dev, bar, 0x00000000); } } /* Configure Cache Line Size Register */ - pci_hose_write_config_byte(hose, dev, PCI_CACHE_LINE_SIZE, 0x08); + pci_hose_write_config_byte (hose, dev, PCI_CACHE_LINE_SIZE, 0x08); /* Configure Latency Timer */ - pci_hose_write_config_byte(hose, dev, PCI_LATENCY_TIMER, 0x80); + pci_hose_write_config_byte (hose, dev, PCI_LATENCY_TIMER, 0x80); /* Disable interrupt line, if device says it wants to use interrupts */ - pci_hose_read_config_byte(hose, dev, PCI_INTERRUPT_PIN, &pin); - if (pin != 0) - { - pci_hose_write_config_byte(hose, dev, PCI_INTERRUPT_LINE, 0xff); + pci_hose_read_config_byte (hose, dev, PCI_INTERRUPT_PIN, &pin); + if (pin != 0) { + pci_hose_write_config_byte (hose, dev, PCI_INTERRUPT_LINE, 0xff); } - pci_hose_read_config_dword(hose, dev, PCI_COMMAND, &old_command); - pci_hose_write_config_dword(hose, dev, PCI_COMMAND, - (old_command & 0xffff0000) | command ); + pci_hose_read_config_dword (hose, dev, PCI_COMMAND, &old_command); + pci_hose_write_config_dword (hose, dev, PCI_COMMAND, + (old_command & 0xffff0000) | command); return 0; } @@ -389,15 +379,13 @@ struct pci_config_table *pci_find_config(struct pci_controller *hose, { struct pci_config_table *table; - for (table = hose->config_table; table && table->vendor; table++) - { + for (table = hose->config_table; table && table->vendor; table++) { if ((table->vendor == PCI_ANY_ID || table->vendor == vendor) && (table->device == PCI_ANY_ID || table->device == device) && (table->class == PCI_ANY_ID || table->class == class) && (table->bus == PCI_ANY_ID || table->bus == bus) && (table->dev == PCI_ANY_ID || table->dev == dev) && - (table->func == PCI_ANY_ID || table->func == func)) - { + (table->func == PCI_ANY_ID || table->func == func)) { return table; } } |