blob: d8b3f9c01205d90ae369e7326cce9030e067a35c [file] [log] [blame]
wdenkfe8c2802002-11-03 00:38:21 +00001U-Boot Changes due to PIP405 Port:
2===================================
3
4Changed files:
5==============
6- MAKEALL added PIP405
7- makefile added PIP405
8- common/Makefile added Floppy disk and SCSI support
9- common/board.c added PIP405, SCSI support, get_PCI_freq()
10- common/bootm.c added IH_OS_U_BOOT, IH_TYPE_FIRMWARE
11- common/cmd_i2c.c added "defined(CONFIG_PIP405)"
12- common/cmd_ide.c changed div. functions to work with block device
13 description
14 added ATAPI support
15- common/command.c added SCSI and Floppy support
16- common/console.c replaced // with /* comments
17 added console settings from environment
18- common/devices.c added ISA keyboard init
19- common/main.c corrected the read of bootdelay
20- cpu/ppc4xx/405gp_pci.c excluded file from PIP405
21- cpu/ppc4xx/i2c.c added 16bit read write I2C support
22 added page write
23- cpu/ppc4xx/speed.c added get_PCI_freq
24- cpu/ppc4xx/start.S added CONFIG_IDENT_STRING
25- disk/Makefile added part_iso for CD support
26- disk/part.c changed to work with block device description
27 added ISO CD support
28 added dev_print (was ide_print in cmd_ide.c)
29- disk/part_dos.c changed to work with block device description
30- disk/part_mac.c changed to work with block device description
31- include/ata.h added ATAPI commands
32- include/cmd_bsp.h added PIP405 commands definitions
33- include/cmd_condefs.h added Floppy and SCSI support
34- include/cmd_disk.h changed to work with block device description
Jon Loeligerb3aff0c2007-07-10 11:19:50 -050035- include/config_LANTEC.h excluded CONFIG_CMD_FDC and CONFIG_CMD_SCSI
36- include/config_hymod.h excluded CONFIG_CMD_FDC and CONFIG_CMD_SCSI
wdenkfe8c2802002-11-03 00:38:21 +000037- include/flash.h added INTEL_ID_28F320C3T 0x88C488C4
38- include/i2c.h added "defined(CONFIG_PIP405)"
39- include/image.h added IH_OS_U_BOOT, IH_TYPE_FIRMWARE
40- include/u-boot.h moved partitions functions definitions to part.h
41 added "defined(CONFIG_PIP405)"
42 added get_PCI_freq() definition
43- rtc/Makefile added MC146818 RTC support
44- tools/mkimage.c added IH_OS_U_BOOT, IH_TYPE_FIRMWARE
45
46Added files:
47============
48- board/pip405 directory for PIP405
49- board/pip405/cmd_pip405.c board specific commands
50- board/pip405/config.mk config make
51- board/pip405/flash.c flash support
52- board/pip405/init.s start-up
53- board/pip405/kbd.c keyboard support
54- board/pip405/kbd.h keyboard support
55- board/pip405/Makefile Makefile
56- board/pip405/pci_piix4.h southbridge definitions
57- board/pip405/pci_pip405.c PCI support for PIP405
58- board/pip405/pci_pip405.h PCI support for PIP405
59- board/pip405/pip405.c PIP405 board init
60- board/pip405/pip405.h PIP405 board init
61- board/pip405/pip405_isa.c ISA support
62- board/pip405/pip405_isa.h ISA support
63- board/pip405/u-boot.lds Linker description
64- board/pip405/u-boot.lds.debugLinker description debug
65- board/pip405/sym53c8xx.c SYM53C810A support
66- board/pip405/sym53c8xx_defs.h SYM53C810A definitions
67- board/pip405/vga_table.h definitions of tables for VGA
68- board/pip405/video.c CT69000 support
69- board/pip405/video.h CT69000 support
70- common/cmd_fdc.c Floppy disk support
71- common/cmd_scsi.c SCSI support
72- disk/part_iso.c ISO CD ROM support
73- disk/part_iso.h ISO CD ROM support
74- include/cmd_fdc.h command forFloppy disk support
75- include/cmd_scsi.h command for SCSI support
76- include/part.h partitions functions definitions
77 (was part of u-boot.h)
78- include/scsi.h SCSI support
79- rtc/mc146818.c MC146818 RTC support
80
81
82New Config Switches:
83====================
84For detailed description, refer to the corresponding paragraph in the
85section "Changes".
86
87New Commands:
88-------------
Jon Loeligerb3aff0c2007-07-10 11:19:50 -050089CONFIG_CMD_SCSI SCSI Support
90CONFIG_CMF_FDC Floppy disk support
wdenkfe8c2802002-11-03 00:38:21 +000091
92IDE additions:
93--------------
94CONFIG_IDE_RESET_ROUTINE defines that instead of a reset Pin,
95 the routine ide_set_reset(int idereset) is used.
96ATAPI support (experimental)
97----------------------------
98CONFIG_ATAPI enables ATAPI Support
99
100SCSI support (experimental) only SYM53C8xx supported
101----------------------------------------------------
102CONFIG_SCSI_SYM53C8XX type of SCSI controller
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200103CONFIG_SYS_SCSI_MAX_LUN 8 number of supported LUNs
104CONFIG_SYS_SCSI_MAX_SCSI_ID 7 maximum SCSI ID (0..6)
105CONFIG_SYS_SCSI_MAX_DEVICE CONFIG_SYS_SCSI_MAX_SCSI_ID * CONFIG_SYS_SCSI_MAX_LUN
wdenkfe8c2802002-11-03 00:38:21 +0000106 maximum of Target devices (multiple LUN support
107 for boot)
108
109ISO (CD-Boot) partition support (Experimental)
110----------------------------------------------
111CONFIG_ISO_PARTITION CD-boot support
112
113RTC
114----
115CONFIG_RTC_MC146818 MC146818 RTC support
116
117Keyboard:
118---------
119CONFIG_ISA_KEYBOARD Standard (PC-Style) Keyboard support
120
121Video:
122------
123CONFIG_VIDEO_CT69000 Enable Chips & Technologies 69000 Video chip
124 CONFIG_VIDEO must be defined also
125
126External peripheral base address:
127---------------------------------
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200128CONFIG_SYS_ISA_IO_BASE_ADDRESS address of all ISA-bus related parts
wdenkfe8c2802002-11-03 00:38:21 +0000129 _must_ be defined for ISA-bus parts
130
131Identify:
132---------
133CONFIG_IDENT_STRING added to the U_BOOT_VERSION String
134
wdenkfe8c2802002-11-03 00:38:21 +0000135Environment / Console:
136----------------------
137
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200138CONFIG_SYS_CONSOLE_IS_IN_ENV if defined, stdin, stdout and stderr used from
wdenkfe8c2802002-11-03 00:38:21 +0000139 the values stored in the evironment.
140
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200141CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE if defined, console_overwrite() decides if the
wdenkfe8c2802002-11-03 00:38:21 +0000142 values stored in the environment or the standard
143 serial in/out put should be assigned to the console.
144
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200145CONFIG_SYS_CONSOLE_ENV_OVERWRITE if defined, the start-up console switching
wdenkfe8c2802002-11-03 00:38:21 +0000146 are stored in the environment.
147
148PIP405 specific:
149----------------
150CONFIG_PORT_ADDR address used to read boot configuration
151MULTI_PURPOSE_SOCKET_ADDR address of the multi purpose socked
152SDRAM_EEPROM_WRITE_ADDRESS addresses of the serial presence detect
153SDRAM_EEPROM_READ_ADDRESS EEPROM on the SDRAM module.
154
155
156Changes:
157========
158
159Added Devices:
160==============
161
162Floppy support:
163---------------
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200164Support of a standard floppy disk controller at address CONFIG_SYS_ISA_IO_BASE_ADDRESS
Jon Loeligerb3aff0c2007-07-10 11:19:50 -0500165+ 0x3F0. Enabled with define CONFIG_CMD_FDC. Reads a unformated floppy disk
166with a image header (see: mkimage). No interrupts and no DMA are used for this.
wdenkfe8c2802002-11-03 00:38:21 +0000167Added files:
168- common/cmd_fdc.c
169- include/cmd_fdc.h
170
171SCSI support:
172-------------
173Support for Symbios SYM53C810A chip. Implemented as follows:
174- without disconnect
175- only asynchrounous
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200176- multiple LUN support (caution, needs a lot of RAM. define CONFIG_SYS_SCSI_MAX_LUN 1 to
wdenkfe8c2802002-11-03 00:38:21 +0000177 save RAM)
178- multiple SCSI ID support
179- no write support
180- analyses the MAC, DOS and ISO pratition similar to the IDE support
181- allows booting from SCSI devices similar to the IDE support.
182The device numbers are not assigned like they are within the IDE support. The first
183device found will get the number 0, the next 1 etc. If all SCSI IDs (0..6) and all
184LUNs (8) are enabled, 56 boot devices are possible. This uses a lot of RAM since the
185device descriptors are not yet dynamically allocated. 56 boot devices are overkill
186anyway. Please refer to the section "Todo" chapter "block device support enhancement".
187The SYM53C810A uses 1 Interrupt and must be able of mastering the PCI bus.
188Added files:
189- common/cmd_scsi.c
190- common/board.c
191- include/cmd_scsi.h
192- include/scsi.h
193- board/pip405/sym53c8xx.c
194- board/pip405/sym53c8xx_defs.h
195
196ATAPI support (IDE changes):
197----------------------------
198Added ATAPI support (with CONFIG_ATAPI) in the file cmd_ide.c.
199To support a hardreset, when the IDE reset pin is not connected to the
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200200CONFIG_SYS_PC_IDE_RESET pin, the switch CONFIG_IDE_RESET_ROUTINE has been added. When
wdenkfe8c2802002-11-03 00:38:21 +0000201this switch is enabled the routine void ide_set_reset(int idereset) must be
202within the board specific files.
203Only read from ATAPI devices are supported.
204Found out that the function trim_trail cuts off the last character if the whole
205string is filled. Added function cpy_ident instead, which trims also leading
206spaces and copies the string in the buffer.
207Changed files:
208- common/cmd_ide.c
209- include/ata.h
210
211ISO partition support:
212----------------------
213Added CD boot support for El-Torito bootable ISO CDs. The bootfile image must contain
214the U-Boot image header. Since CDs do not have "partitions", the boot partition is 0.
215The bootcatalog feature has not been tested so far. CD Boot is supported for ATAPI
216("diskboot") and SCSI ("scsiboot") devices.
217Added files:
218- disk/iso_part.c
219- disk/iso_part.h
220
221Block device changes:
222---------------------
223To allow the use of dos_part.c, mac_part.c and iso_part.c, the parameter
224block_dev_desc will be used when accessing the functions in these files. The block
225device descriptor (block_dev_desc) contains a pointer to the read routine of the
226device, which will be used to read blocks from the device.
227Renamed function ide_print to dev_print and moved it to the file disk/part.c to use
228it for IDE ATAPI and SCSI devices.
229Please refer to the section "Todo" chapter "block device support enhancement".
230Added files:
231- include/part.h
232changed files:
233- disk/dos_part.c
234- disk/dos_part.h
235- disk/mac_part.c
236- disk/mac_part.h
237- disk/part.c
238- common/cmd_ide.c
239- include/u-boot.h
240
241
242MC146818 RTC support:
243---------------------
244Added support for MC146818 RTC with defining CONFIG_RTC_MC146818. The ISA bus IO
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200245base address must be defined with CONFIG_SYS_ISA_IO_BASE_ADDRESS.
wdenkfe8c2802002-11-03 00:38:21 +0000246Added files:
247- rtc/mc146818.c
248
249Standard ISA bus Keyboard support:
250----------------------------------
251Added support for the standard PC kyeboard controller. For the PIP405 the superIO
252controller must be set up previously. The keyboard uses the standard ISA IRQ, so
253the ISA PIC must also be set up.
254Added files:
255- board/pip405/kbd.c
256- board/pip405/kbd.h
257- board/pip405/pip405_isa.c
258- board/pip405/pip405_isa.h
259
260Chips and Technologie 69000 VGA controller support:
261---------------------------------------------------
262Added support for the CT69000 VGA controller.
263Added files:
264- board/pip405/video.c
265- board/pip405/video.h
266- board/pip405/vga_table.h
267
268
269Changed Items:
270==============
271
272Identify:
273---------
274Added the config variable CONFIG_IDENT_STRING which will be added to the
275"U_BOOT_VERSION __TIME__ DATE___ " String, to allows to identify intermidiate
276and custom versions.
277Changed files:
278- cpu/ppc4xx/start.s
279
280Firmware Image:
281---------------
282Added IH_OS_U_BOOT and IH_TYPE_FIRMWARE to the image definitions to allows the
283U-Boot update with prior CRC check.
284Changed files:
285- include/image.h
286- tools/mkimage.c
287- common/cmd_bootm.c
288
289Correct PCI Frequency for PPC405:
290---------------------------------
291Added function (in cpu/ppc4xx/speed.c) to get the PCI frequency for PPC405 CPU.
292The PCI Frequency will now be set correct in the board description in common/board.c.
293(was set to the busfreq before).
294Changed files:
295- cpu/ppc4xx/speed.c
296- common/board.c
297
298I2C Stuff:
299----------
300Added defined(CONFIG_PIP405) at several points in common/cmd_i2c.c.
301Added 16bit read/write support for I2C (PPC405), and page write to
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200302I2C EEPROM if defined CONFIG_SYS_EEPROM_PAGE_WRITE_ENABLE.
wdenkfe8c2802002-11-03 00:38:21 +0000303Changed files:
304- cpu/ppc4xx/i2c.c
305- common/cmd_i2c.c
306
307Environment / Console:
308----------------------
309Although in README.console described, the U-Boot has not assinged the values
310found in the environment to the console. Corrected this behavior, but only if
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200311CONFIG_SYS_CONSOLE_IS_IN_ENV is defined.
312If CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE is defined, console_overwrite() decides if the
wdenkfe8c2802002-11-03 00:38:21 +0000313values stored in the environment or the standard serial in/output should be
314assigned to the console. This is useful if the environment values are not correct.
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200315If CONFIG_SYS_CONSOLE_ENV_OVERWRITE is defined the devices assigned to the console at
wdenkfe8c2802002-11-03 00:38:21 +0000316start-up time will be written to the environment. This means that if the
317environment values are overwritten by the overwrite_console() routine, they will be
318stored in the environment.
319Changed files:
320- common/console.c
321
322Correct bootdelay intepretation:
323--------------------------------
324Changed bootdelay read from the environment from simple_strtoul (unsigned) to
325simple_strtol (signed), to be able to get a bootdelay of -1.
326Changed files:
327- common/main.c
328
329Todo:
330=====
331
332Block device support enhancement:
333---------------------------------
334Consider to unify the block device handling. Instead of using diskboot for IDE,
335scsiboot for SCSI and fdcboot for floppy disks, it would make sense to use only
336one command ("devboot" ???) with a parameter of the desired device ("hda1", "sda1",
337"fd0" ???) to boot from. The other ide commands can be handled in the same way
338("dev hda read.." instead of "ide read.." or "dev sda read.." instead of
339"scsi read..."). Todo this, a common way of assign a block device to its name
340(first found ide device = hda, second found hdb etc., or hda is device 0 on bus 0,
341hdb is device 1 on bus 0 etc.) as well as the names (hdx for ide, sdx for scsi, fx for
342floppy ???) must be defined.
343Maybe there are better ideas to do this.
344
345Console assingment:
346-------------------
347Consider to initialize and assign the console stdin, stdout and stderr as soon as
348possible to see the boot messages also on an other console than serial.
349
350
351Todo for PIP405:
352================
353
354LCD support for VGA:
355--------------------
356Add LCD support for the CT69000
357
358Default environment:
359--------------------
360Consider to write a default environment to the OTP part of the EEPROM and use it
361if the normal environment is not valid. Useful for serial# and ethaddr values.
362
363Watchdog:
364---------
365Implement Watchdog.
366
367Files clean-up:
368---------------
369Following files needs to be cleaned up:
370- cmd_pip405.c
371- flash.c
372- pci_pip405.c
373- pip405.c
374- pip405_isa.c
375Consider to split up the files in their functions.