u-boot.git/arch/powerpc/cpu/mpc8xx/speed.c, branch main

powerpc: mpc8xx: Remove usage of common.h

2023-11-16T23:53:09Z

Remove inclusion of common.h and add relevant includes when necessary. Signed-off-by: Christophe Leroy

powerpc: mpc8xx: Migrate to CONFIG_SYS_CLK_FREQ

2023-04-05T17:46:18Z

8xx has CONFIG_8xx_GCLK_FREQ which is similar to CONFIG_SYS_CLK_FREQ, and doesn't set CONFIG_SYS_CLK_FREQ. Due to that, get_board_sys_clk() returns 0. Remove CONFIG_8xx_GCLK_FREQ and use CONFIG_SYS_CLK_FREQ instead. Signed-off-by: Christophe Leroy

common: Drop asm/global_data.h from common header

2021-02-02T20:33:42Z

Move this out of the common header and include it only where needed. In a number of cases this requires adding "struct udevice;" to avoid adding another large header or in other cases replacing / adding missing header files that had been pulled in, very indirectly. Finally, we have a few cases where we did not need to include at all, so remove that include. Signed-off-by: Simon Glass Signed-off-by: Tom Rini

common: Move clock functions into a new file

2020-01-17T18:27:29Z

These three clock functions don't use driver model and should be migrated. In the meantime, create a new file to hold them. Signed-off-by: Simon Glass

SPDX: Convert all of our single license tags to Linux Kernel style

2018-05-07T13:34:12Z

When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini

powerpc: mpc8xx: harmonise initialisation of the immap local pointer

2018-04-06T20:30:37Z

In most places, immap local pointer is defined as immap_t __iomem *immap = (immap_t __iomem *)CONFIG_SYS_IMMR; In a few places, it is defined as immap_t __iomem *immap = (immap_t __iomem *)(immr & 0xFFFF0000); This patch replaces the few of the latest form by the other one. The two are fully equivalent since SPRN_IMMR is set with CONFIG_SYS_IMMR very early in start.S Signed-off-by: Christophe Leroy

powerpc, 8xx: Simplify brgclk calculation and remove get_brgclk()

2017-07-23T02:22:47Z

divider is calculated based on SCCR_DFBRG, with: SCCR_DFBRG 00 => divider 1 = 1 << 0 SCCR_DFBRG 01 => divider 4 = 1 << 2 SCCR_DFBRG 10 => divider 16 = 1 << 4 SCCR_DFBRG 11 => divider 64 = 1 << 6 This can be easily converted to a single shift operation: divider = 1 << (SCCR_DFBRG * 2) Signed-off-by: Christophe Leroy

powerpc, 8xx: Handle checkpatch errors and some of the warnings/checks

2017-07-08T19:55:34Z

Signed-off-by: Christophe Leroy Reviewed-by: Heiko Schocher

powerpc, 8xx: Use IO accessors to access IO memory

2017-07-08T19:55:32Z

Signed-off-by: Christophe Leroy Reviewed-by: Heiko Schocher

powerpc: Partialy restore core of mpc8xx

2017-07-08T19:55:26Z

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 5b8e76c35ec312a3f73126bd1a2d2c0965b98a9f ("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