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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>
117 lines
2.8 KiB
C
117 lines
2.8 KiB
C
/*
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* (C) Copyright 2002-2010
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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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#ifndef __ASM_GBL_DATA_H
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#define __ASM_GBL_DATA_H
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#include "config.h"
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#include "asm/types.h"
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/* Architecture-specific global data */
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struct arch_global_data {
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#if defined(CONFIG_FSL_ESDHC)
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u32 sdhc_clk;
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#if defined(CONFIG_FSL_ESDHC_ADAPTER_IDENT)
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u8 sdhc_adapter;
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#endif
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#endif
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#if defined(CONFIG_8xx)
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unsigned long brg_clk;
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#endif
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#if defined(CONFIG_CPM2)
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/* There are many clocks on the MPC8260 - see page 9-5 */
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unsigned long vco_out;
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unsigned long cpm_clk;
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unsigned long scc_clk;
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unsigned long brg_clk;
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#endif
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/* TODO: sjg@chromium.org: Should these be unslgned long? */
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#if defined(CONFIG_MPC83xx)
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/* There are other clocks in the MPC83XX */
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u32 csb_clk;
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# if defined(CONFIG_MPC8308) || defined(CONFIG_MPC831x) || \
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defined(CONFIG_MPC834x) || defined(CONFIG_MPC837x)
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u32 tsec1_clk;
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u32 tsec2_clk;
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u32 usbdr_clk;
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# elif defined(CONFIG_MPC8309)
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u32 usbdr_clk;
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# endif
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# if defined(CONFIG_MPC834x)
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u32 usbmph_clk;
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# endif /* CONFIG_MPC834x */
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# if defined(CONFIG_MPC8315)
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u32 tdm_clk;
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# endif
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u32 core_clk;
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u32 enc_clk;
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u32 lbiu_clk;
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u32 lclk_clk;
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# if defined(CONFIG_MPC8308) || defined(CONFIG_MPC831x) || \
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defined(CONFIG_MPC837x)
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u32 pciexp1_clk;
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u32 pciexp2_clk;
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# endif
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# if defined(CONFIG_MPC837x) || defined(CONFIG_MPC8315)
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u32 sata_clk;
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# endif
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# if defined(CONFIG_MPC8360)
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u32 mem_sec_clk;
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# endif /* CONFIG_MPC8360 */
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#endif
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#if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
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u32 lbc_clk;
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void *cpu;
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#endif /* CONFIG_MPC85xx || CONFIG_MPC86xx */
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#if defined(CONFIG_MPC83xx) || defined(CONFIG_MPC85xx) || \
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defined(CONFIG_MPC86xx)
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u32 i2c1_clk;
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u32 i2c2_clk;
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#endif
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#if defined(CONFIG_QE)
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u32 qe_clk;
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u32 brg_clk;
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uint mp_alloc_base;
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uint mp_alloc_top;
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#endif /* CONFIG_QE */
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#if defined(CONFIG_FSL_LAW)
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u32 used_laws;
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#endif
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#if defined(CONFIG_E500)
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u32 used_tlb_cams[(CONFIG_SYS_NUM_TLBCAMS+31)/32];
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#endif
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unsigned long reset_status; /* reset status register at boot */
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#if defined(CONFIG_MPC83xx)
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unsigned long arbiter_event_attributes;
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unsigned long arbiter_event_address;
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#endif
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#if defined(CONFIG_CPM2)
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unsigned int dp_alloc_base;
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unsigned int dp_alloc_top;
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#endif
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#ifdef CONFIG_SYS_FPGA_COUNT
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unsigned fpga_state[CONFIG_SYS_FPGA_COUNT];
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#endif
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#if defined(CONFIG_WD_MAX_RATE)
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unsigned long long wdt_last; /* trace watch-dog triggering rate */
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#endif
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#if defined(CONFIG_LWMON5)
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unsigned long kbd_status;
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#endif
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};
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#include <asm-generic/global_data.h>
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#if 1
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#define DECLARE_GLOBAL_DATA_PTR register volatile gd_t *gd asm ("r2")
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#else /* We could use plain global data, but the resulting code is bigger */
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#define XTRN_DECLARE_GLOBAL_DATA_PTR extern
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#define DECLARE_GLOBAL_DATA_PTR XTRN_DECLARE_GLOBAL_DATA_PTR \
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gd_t *gd
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#endif
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#endif /* __ASM_GBL_DATA_H */
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