mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-28 07:31:15 +00:00
* 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.
This commit is contained in:
wdenk
parent
38b99261c1
commit
f07771cc28
6 changed files with 178 additions and 127 deletions
12
CHANGELOG
12
CHANGELOG
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@ -2,6 +2,18 @@
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Changes since U-Boot 0.3.1:
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======================================================================
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* Fix data abort exception handling for arm920t CPU
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* Fix alignment problems with flash driver for TRAB board
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* Patch by Donald White, 21 May 2003:
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fix calculation of base address in pci_hose_config_device()
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* Fix bug in command line parsing: "cmd1;cmd2" is supposed to always
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execute "cmd2", even if "cmd1" fails. Note that this is different
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to "run var1 var2" where the contents of "var2" will NOT be
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executed when a command in "var1" fails.
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* Add zero-copy ramdisk support (requires corresponding kernel support!)
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* Patch by Kyle Harris, 20 May 2003:
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48
README
48
README
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@ -2048,6 +2048,48 @@ Please note that changes to some configuration parameters may take
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only effect after the next boot (yes, that's just like Windoze :-).
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Command Line Parsing:
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=====================
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There are two different command line parsers available with U-Boot:
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the old "simple" one, and the much more pwerful "hush" shell:
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Old, simple command line parser:
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--------------------------------
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- supports environment variables (through setenv / saveenv commands)
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- several commands on one line, separated by ';'
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- variable substitution using "... $(name) ..." syntax
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- special characters ('$', ';') can be escaped by prefixing with '\',
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for example:
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setenv bootcmd bootm \$(address)
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- You can also escape text by enclosing in single apostrophes, for example:
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setenv addip 'setenv bootargs $bootargs ip=$ipaddr:$serverip:$gatewayip:$netmask:$hostname::off'
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Hush shell:
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-----------
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- similar to Bourne shell, with control structures like
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if...then...else...fi, for...do...done; while...do...done,
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until...do...done, ...
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- supports environment ("global") variables (through setenv / saveenv
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commands) and local shell variables (through standard shell syntax
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"name=value"); only environment variables can be used with "run"
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command
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General rules:
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--------------
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(1) If a command line (or an environment variable executed by a "run"
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command) contains several commands separated by semicolon, and
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one of these commands fails, then the remaining commands will be
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executed anyway.
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(2) If you execute several variables with one call to run (i. e.
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calling run with a list af variables as arguments), any failing
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command will cause "run" to terminate, i. e. the remaining
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variables are not executed.
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Note for Redundant Ethernet Interfaces:
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=======================================
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@ -2563,9 +2605,9 @@ Minicom warning:
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================
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Over time, many people have reported problems when trying to used the
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"minicom" terminal emulation program for serial download. I (wd)
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consider minicom to be broken, and recommend not to use it. Under
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Unix, I recommend to use CKermit for general purpose use (and
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"minicom" terminal emulation program for serial download. I (wd)
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consider minicom to be broken, and recommend not to use it. Under
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Unix, I recommend to use C-Kermit for general purpose use (and
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especially for kermit binary protocol download ("loadb" command), and
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use "cu" for S-Record download ("loads" command).
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@ -431,7 +431,15 @@ int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt)
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* handle word aligned part
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*/
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while (cnt >= 4) {
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data = *((vu_long *) src);
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if (((ulong)src) & 0x3) {
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for (i = 0; i < 4; i++) {
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((char *)&data)[i] = ((vu_char *)src)[i];
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}
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}
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else {
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data = *((vu_long *) src);
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}
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if ((rc = write_word (info, wp, data)) != 0) {
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return (rc);
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}
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@ -746,9 +746,9 @@ int run_command (const char *cmd, int flag)
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char finaltoken[CFG_CBSIZE];
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char *str = cmdbuf;
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char *argv[CFG_MAXARGS + 1]; /* NULL terminated */
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int argc;
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int argc, inquotes;
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int repeatable = 1;
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int inquotes;
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int rc = 0;
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#ifdef DEBUG_PARSER
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printf ("[RUN_COMMAND] cmd[%p]=\"", cmd);
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@ -817,13 +817,15 @@ int run_command (const char *cmd, int flag)
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/* Look up command in command table */
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if ((cmdtp = find_cmd(argv[0])) == NULL) {
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printf ("Unknown command '%s' - try 'help'\n", argv[0]);
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return -1; /* give up after bad command */
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rc = -1; /* give up after bad command */
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continue;
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}
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/* found - check max args */
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if (argc > cmdtp->maxargs) {
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printf ("Usage:\n%s\n", cmdtp->usage);
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return -1;
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rc = -1;
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continue;
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}
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#if (CONFIG_COMMANDS & CFG_CMD_BOOTD)
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@ -834,7 +836,8 @@ int run_command (const char *cmd, int flag)
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#endif
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if (flag & CMD_FLAG_BOOTD) {
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printf ("'bootd' recursion detected\n");
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return -1;
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rc = -1;
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continue;
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}
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else
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flag |= CMD_FLAG_BOOTD;
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@ -843,7 +846,7 @@ int run_command (const char *cmd, int flag)
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/* OK - call function to do the command */
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if ((cmdtp->cmd) (cmdtp, flag, argc, argv) != 0) {
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return (-1);
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rc = -1;
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}
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repeatable &= cmdtp->repeatable;
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@ -853,7 +856,7 @@ int run_command (const char *cmd, int flag)
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return 0; /* if stopped then not repeatable */
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}
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return repeatable;
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return rc ? rc : repeatable;
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}
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/****************************************************************************/
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@ -317,17 +317,15 @@ cpu_init_crit:
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.macro bad_save_user_regs
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sub sp, sp, #S_FRAME_SIZE
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stmia sp, {r0 - r12} @ Calling r0-r12
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add r8, sp, #S_PC
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ldr r2, _armboot_end
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add r2, r2, #CONFIG_STACKSIZE
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sub r2, r2, #8
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ldmia r2, {r2 - r4} @ get pc, cpsr, old_r0
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ldmia r2, {r2 - r3} @ get pc, cpsr
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add r0, sp, #S_FRAME_SIZE @ restore sp_SVC
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add r5, sp, #S_SP
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mov r1, lr
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stmia r5, {r0 - r4} @ save sp_SVC, lr_SVC, pc, cpsr, old_r
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stmia r5, {r0 - r3} @ save sp_SVC, lr_SVC, pc, cpsr
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mov r0, sp
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.endm
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212
drivers/pci.c
212
drivers/pci.c
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@ -2,7 +2,7 @@
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* (C) Copyright 2001 Sysgo Real-Time Solutions, GmbH <www.elinos.com>
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* Andreas Heppel <aheppel@sysgo.de>
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*
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* (C) Copyright 2002
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* (C) Copyright 2002, 2003
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* See file CREDITS for list of people who contributed to this
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@ -48,12 +48,12 @@
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*
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*/
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#define PCI_HOSE_OP(rw, size, type) \
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int pci_hose_##rw##_config_##size(struct pci_controller *hose, \
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pci_dev_t dev, \
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int offset, type value) \
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{ \
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return hose->rw##_##size(hose, dev, offset, value); \
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#define PCI_HOSE_OP(rw, size, type) \
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int pci_hose_##rw##_config_##size(struct pci_controller *hose, \
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pci_dev_t dev, \
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int offset, type value) \
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{ \
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return hose->rw##_##size(hose, dev, offset, value); \
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}
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PCI_HOSE_OP(read, byte, u8 *)
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@ -63,18 +63,18 @@ PCI_HOSE_OP(write, byte, u8)
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PCI_HOSE_OP(write, word, u16)
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PCI_HOSE_OP(write, dword, u32)
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#define PCI_OP(rw, size, type, error_code) \
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int pci_##rw##_config_##size(pci_dev_t dev, int offset, type value) \
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{ \
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struct pci_controller *hose = pci_bus_to_hose(PCI_BUS(dev)); \
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\
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if (!hose) \
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{ \
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error_code; \
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return -1; \
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} \
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\
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return pci_hose_##rw##_config_##size(hose, dev, offset, value); \
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#define PCI_OP(rw, size, type, error_code) \
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int pci_##rw##_config_##size(pci_dev_t dev, int offset, type value) \
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{ \
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struct pci_controller *hose = pci_bus_to_hose(PCI_BUS(dev)); \
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\
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if (!hose) \
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{ \
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error_code; \
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return -1; \
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} \
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\
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return pci_hose_##rw##_config_##size(hose, dev, offset, value); \
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}
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PCI_OP(read, byte, u8 *, *value = 0xff)
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@ -84,40 +84,40 @@ PCI_OP(write, byte, u8, )
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PCI_OP(write, word, u16, )
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PCI_OP(write, dword, u32, )
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#define PCI_READ_VIA_DWORD_OP(size, type, off_mask) \
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int pci_hose_read_config_##size##_via_dword(struct pci_controller *hose, \
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pci_dev_t dev, \
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int offset, type val) \
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{ \
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u32 val32; \
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\
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if (pci_hose_read_config_dword(hose, dev, offset & 0xfc, &val32) < 0) \
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return -1; \
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\
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*val = (val32 >> ((offset & (int)off_mask) * 8)); \
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\
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return 0; \
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#define PCI_READ_VIA_DWORD_OP(size, type, off_mask) \
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int pci_hose_read_config_##size##_via_dword(struct pci_controller *hose,\
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pci_dev_t dev, \
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int offset, type val) \
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{ \
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u32 val32; \
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\
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if (pci_hose_read_config_dword(hose, dev, offset & 0xfc, &val32) < 0)\
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return -1; \
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\
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*val = (val32 >> ((offset & (int)off_mask) * 8)); \
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\
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return 0; \
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}
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#define PCI_WRITE_VIA_DWORD_OP(size, type, off_mask, val_mask) \
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int pci_hose_write_config_##size##_via_dword(struct pci_controller *hose, \
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pci_dev_t dev, \
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int offset, type val) \
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{ \
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u32 val32, mask, ldata; \
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\
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if (pci_hose_read_config_dword(hose, dev, offset & 0xfc, &val32) < 0) \
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return -1; \
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\
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mask = val_mask; \
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#define PCI_WRITE_VIA_DWORD_OP(size, type, off_mask, val_mask) \
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int pci_hose_write_config_##size##_via_dword(struct pci_controller *hose,\
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pci_dev_t dev, \
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int offset, type val) \
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{ \
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u32 val32, mask, ldata; \
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\
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if (pci_hose_read_config_dword(hose, dev, offset & 0xfc, &val32) < 0)\
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return -1; \
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\
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mask = val_mask; \
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ldata = (((unsigned long)val) & mask) << ((offset & (int)off_mask) * 8);\
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mask <<= ((mask & (int)off_mask) * 8); \
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val32 = (val32 & ~mask) | ldata; \
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\
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if (pci_hose_write_config_dword(hose, dev, offset & 0xfc, val32) < 0) \
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return -1; \
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\
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return 0; \
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mask <<= ((mask & (int)off_mask) * 8); \
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val32 = (val32 & ~mask) | ldata; \
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\
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if (pci_hose_write_config_dword(hose, dev, offset & 0xfc, val32) < 0)\
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return -1; \
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\
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return 0; \
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}
|
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|
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PCI_READ_VIA_DWORD_OP(byte, u8 *, 0x03)
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@ -143,13 +143,12 @@ void pci_register_hose(struct pci_controller* hose)
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*phose = hose;
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}
|
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|
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struct pci_controller* pci_bus_to_hose(int bus)
|
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struct pci_controller *pci_bus_to_hose (int bus)
|
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{
|
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struct pci_controller *hose;
|
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|
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for (hose = hose_head; hose; hose = hose->next)
|
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if (bus >= hose->first_busno &&
|
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bus <= hose->last_busno)
|
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if (bus >= hose->first_busno && bus <= hose->last_busno)
|
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return hose;
|
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|
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return NULL;
|
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|
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@ -178,16 +177,13 @@ pci_dev_t pci_find_devices(struct pci_device_id *ids, int index)
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#endif
|
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bdf += PCI_BDF(0,0,1))
|
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{
|
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if (!PCI_FUNC(bdf))
|
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{
|
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if (!PCI_FUNC(bdf)) {
|
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pci_read_config_byte(bdf,
|
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PCI_HEADER_TYPE,
|
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&header_type);
|
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|
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found_multi = header_type & 0x80;
|
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}
|
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else
|
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{
|
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} else {
|
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if (!found_multi)
|
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continue;
|
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}
|
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|
|
@ -228,22 +224,20 @@ pci_dev_t pci_find_device(unsigned int vendor, unsigned int device, int index)
|
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*
|
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*/
|
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|
||||
unsigned long pci_hose_phys_to_bus(struct pci_controller* hose,
|
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unsigned long phys_addr,
|
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unsigned long flags)
|
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unsigned long pci_hose_phys_to_bus (struct pci_controller *hose,
|
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unsigned long phys_addr,
|
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unsigned long flags)
|
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{
|
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struct pci_region *res;
|
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unsigned long bus_addr;
|
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int i;
|
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|
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if (!hose)
|
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{
|
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printf("pci_hose_phys_to_bus: %s\n", "invalid hose");
|
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if (!hose) {
|
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printf ("pci_hose_phys_to_bus: %s\n", "invalid hose");
|
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goto Done;
|
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}
|
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|
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for (i=0; i<hose->region_count; i++)
|
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{
|
||||
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,
|
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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");
|
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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;
|
||||
}
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue