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https://github.com/AsahiLinux/u-boot
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907208c452
CS Systemes d'Information (CSSI) manufactures 8xx boards for
critical communication systems. Those boards have been
running U-Boot since 2010 and will have to be maintained
until at least 2027.
commit 5b8e76c35e
("powerpc, 8xx: remove support for 8xx") orphaned those boards
by removing support for the mpc8xx CPU.
This commit partially restores support for the 8xx, with the
following limitations:
- Restores support for MPC866 and MPC885 only
- Does not restore IDE, PCMCIA, I2C, USB
- Does not restore examples
- Does not restore POST
- Does not restore Ethernet on SCC
- Does not restore console on SCC
- Does not restore bedbug and kgdb support
As the 866 and 885 do not support the following features,
they are not restored either:
- VIDEO / LCD
- RTC clock
The CPM uCODE patch is not restored either, because:
- 866 and 885 already have support for I2C and SPI relocation
without a uCODE patch
- relocation of SMC, I2C or SPI is only needed for using SCCs
for Ethernet or QMC
The dynamic setup/calculation of clocks is removed, we
expect the target being use with the clock and PLPRCR register
defined in the configuration.
All the clock settings for 8xx prior to 866 is removed as
well as we now only support 866 and 885.
This code is mature and addresses mature boards. Therefore
all code enclosed in '#if 0/#endif' and '#if XX_DEBUG/#endif'
is unneeded.
The following files are not restored by this patch:
- arch/powerpc/cpu/mpc8xx/bedbug_860.c
- arch/powerpc/cpu/mpc8xx/fec.h
- arch/powerpc/cpu/mpc8xx/kgdb.S
- arch/powerpc/cpu/mpc8xx/plprcr_write.S
- arch/powerpc/cpu/mpc8xx/scc.c
- arch/powerpc/cpu/mpc8xx/upatch.c
- arch/powerpc/cpu/mpc8xx/video.c
- arch/powerpc/include/asm/status_led.h
- arch/powerpc/lib/ide.c
- arch/powerpc/lib/ide.h
- doc/README.MPC866
- drivers/pcmcia/mpc8xx_pcmcia.c
- drivers/rtc/mpc8xx.c
- drivers/usb/gadget/mpc8xx_udc.c
- drivers/video/mpc8xx_lcd.c
- examples/standalone/test_burst.c
- examples/standalone/test_burst.h
- examples/standalone/test_burst_lib.S
- examples/standalone/timer.c
- include/mpc823_lcd.h
- include/usb/mpc8xx_udc.h
- post/cpu/mpc8xx/Makefile
- post/cpu/mpc8xx/cache.c
- post/cpu/mpc8xx/cache_8xx.S
- post/cpu/mpc8xx/ether.c
- post/cpu/mpc8xx/spr.c
- post/cpu/mpc8xx/uart.c
- post/cpu/mpc8xx/usb.c
- post/cpu/mpc8xx/watchdog.c
Some of the restored files are not located in a proper location.
In order to keep traceability of the changes, they will be
moved to their correct location and moved to Kconfig in a
followup patch.
This patch also declares CSSI as point of contact for the update
of the 8xx platform, as those boards are the only ones still
being maintained on the 8xx area. A later patch will add
those boards to the tree.
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
99 lines
3.3 KiB
C
99 lines
3.3 KiB
C
/*
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* Copyright (c) 2011 The Chromium OS Authors.
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*
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* (C) Copyright 2000 - 2002
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* SPDX-License-Identifier: GPL-2.0+
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********************************************************************
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* NOTE: This header file defines an interface to U-Boot. Including
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* this (unmodified) header file in another file is considered normal
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* use of U-Boot, and does *not* fall under the heading of "derived
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* work".
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********************************************************************
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*/
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#ifndef __ASM_GENERIC_U_BOOT_H__
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#define __ASM_GENERIC_U_BOOT_H__
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/*
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* Board information passed to Linux kernel from U-Boot
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*
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* include/asm-ppc/u-boot.h
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*/
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#ifndef __ASSEMBLY__
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typedef struct bd_info {
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unsigned long bi_memstart; /* start of DRAM memory */
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phys_size_t bi_memsize; /* size of DRAM memory in bytes */
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unsigned long bi_flashstart; /* start of FLASH memory */
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unsigned long bi_flashsize; /* size of FLASH memory */
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unsigned long bi_flashoffset; /* reserved area for startup monitor */
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unsigned long bi_sramstart; /* start of SRAM memory */
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unsigned long bi_sramsize; /* size of SRAM memory */
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#ifdef CONFIG_ARM
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unsigned long bi_arm_freq; /* arm frequency */
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unsigned long bi_dsp_freq; /* dsp core frequency */
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unsigned long bi_ddr_freq; /* ddr frequency */
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#endif
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#if defined(CONFIG_8xx) || defined(CONFIG_E500) || defined(CONFIG_MPC86xx)
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unsigned long bi_immr_base; /* base of IMMR register */
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#endif
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#if defined(CONFIG_M68K)
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unsigned long bi_mbar_base; /* base of internal registers */
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#endif
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#if defined(CONFIG_MPC83xx)
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unsigned long bi_immrbar;
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#endif
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unsigned long bi_bootflags; /* boot / reboot flag (Unused) */
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unsigned long bi_ip_addr; /* IP Address */
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unsigned char bi_enetaddr[6]; /* OLD: see README.enetaddr */
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unsigned short bi_ethspeed; /* Ethernet speed in Mbps */
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unsigned long bi_intfreq; /* Internal Freq, in MHz */
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unsigned long bi_busfreq; /* Bus Freq, in MHz */
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#if defined(CONFIG_CPM2)
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unsigned long bi_cpmfreq; /* CPM_CLK Freq, in MHz */
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unsigned long bi_brgfreq; /* BRG_CLK Freq, in MHz */
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unsigned long bi_sccfreq; /* SCC_CLK Freq, in MHz */
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unsigned long bi_vco; /* VCO Out from PLL, in MHz */
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#endif
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#if defined(CONFIG_M68K)
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unsigned long bi_ipbfreq; /* IPB Bus Freq, in MHz */
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unsigned long bi_pcifreq; /* PCI Bus Freq, in MHz */
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#endif
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#if defined(CONFIG_EXTRA_CLOCK)
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unsigned long bi_inpfreq; /* input Freq in MHz */
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unsigned long bi_vcofreq; /* vco Freq in MHz */
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unsigned long bi_flbfreq; /* Flexbus Freq in MHz */
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#endif
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#ifdef CONFIG_HAS_ETH1
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unsigned char bi_enet1addr[6]; /* OLD: see README.enetaddr */
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#endif
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#ifdef CONFIG_HAS_ETH2
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unsigned char bi_enet2addr[6]; /* OLD: see README.enetaddr */
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#endif
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#ifdef CONFIG_HAS_ETH3
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unsigned char bi_enet3addr[6]; /* OLD: see README.enetaddr */
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#endif
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#ifdef CONFIG_HAS_ETH4
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unsigned char bi_enet4addr[6]; /* OLD: see README.enetaddr */
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#endif
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#ifdef CONFIG_HAS_ETH5
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unsigned char bi_enet5addr[6]; /* OLD: see README.enetaddr */
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#endif
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ulong bi_arch_number; /* unique id for this board */
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ulong bi_boot_params; /* where this board expects params */
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#ifdef CONFIG_NR_DRAM_BANKS
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struct { /* RAM configuration */
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phys_addr_t start;
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phys_size_t size;
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} bi_dram[CONFIG_NR_DRAM_BANKS];
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#endif /* CONFIG_NR_DRAM_BANKS */
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} bd_t;
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#endif /* __ASSEMBLY__ */
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#endif /* __ASM_GENERIC_U_BOOT_H__ */
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