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2020-06-08	34d18aa Browse files » MIPS: correctly work with disabled CONFIG_MMU ... There are some issues with CONFIG_MMU=n in MIPS configuration (e.g. qemu-malta_defconfig): * "Cannot request SDRAM region for stack" error message on start; * empty kseg1_ram0 region in the iomem command output. The patch fixes the problems by forcing KSEG1 memory region usage for CONFIG_MMU=n MIPS configurations. Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Antony Pavlov authored on 3 Jun 2020 Sascha Hauer committed on 8 Jun 2020
2020-01-06	0d0d89d Browse files » MIPS: loongson: rename CPU_LOONGSON1 to CPU_GS232 ... The CPU in the loongson 1b SoC is called GS232. Here is some active chips and it's core: NAME CPU Core(s) The loongson 3 series/server & desktop 3A3000/3B3000 GS464E 64bit x4 3A2000/3B2000 GS464E 64bit x4 3B1500 GS464 64bit x8 3A1000 GS464 64bit x4 The loongson 2 series/low power 2K1000 GS264 64bit x2 2F GS464 64bit x1 2H GS464 64bit x1 The loongson 1 series/embeded 1C101 GS132R 32bit ? 1D GS132 32bit ? 1C GS232 32bit x1 1B GS232 32bit x1 1A GS232 32bit x1 see: [1] http://www.loongson.cn/product/ Signed-off-by: Du Huanpeng <duhuanpeng@loongson.cn> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Du Huanpeng authored on 26 Nov 2019 Sascha Hauer committed on 6 Jan 2020
2019-10-23	9305f5c Browse files » MIPS: move r4k_cache_init in to cpu_probe function ... Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Oleksij Rempel authored on 21 Oct 2019 Sascha Hauer committed on 23 Oct 2019
2019-08-30	bb1e38c Browse files » Kconfig: retire empty <asm/barebox.h> ... With the latest changes, this file is empty on all archs. Drop it. Signed-off-by: Ahmad Fatoum <ahmad@a3f.at> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Ahmad Fatoum authored on 27 Aug 2019 Sascha Hauer committed on 30 Aug 2019
2019-08-30	cb7d858 Browse files » Kconfig: create Kconfig symbol for ARCH_HAS_DATA_ABORT_MASK ... Other arch-specific features are exposed in Kconfig too, so do here likewise. Signed-off-by: Ahmad Fatoum <ahmad@a3f.at> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Ahmad Fatoum authored on 27 Aug 2019 Sascha Hauer committed on 30 Aug 2019
2019-08-12	4bbc3bb Browse files » mips: use generic bitsperlong.h ... Linux highly depends on the fact that the 'long' and the pointer have the same width, and so does barebox. So, we can always use include/asm-generic/bitsperlong.h, which determines BITS_PER_LONG depending on CONFIG_64BIT. This is what Linux does (at least in the kernel-space), and barebox can follow it. It is true that MIPS Linux references _MIPS_SZLONG (arch/mips/include/uaspi/asm/bitsperlong.h), but this is bacause the user-space cannot reference CONFIG options. For the kernel-space, it uses the generic definition from include/asm-generic/bitsperlong.h. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Masahiro Yamada authored on 7 Aug 2019 Sascha Hauer committed on 12 Aug 2019
2019-06-07	d85b94a Browse files » MIPS: use anonymous labels in ENTRY_FUNCTION_END and STOP_WITH_DEBUG_EVENT macros ... Use of global labels of the same name inside ENTRY_FUNCTION_END and STOP_WITH_DEBUG_EVENT prevents simultaneous use of both macros. It also prevents multiple use of one of them. Signed-off-by: Peter Mamonov <pmamonov@gmail.com> Reviewed-by: Oleksij Rempel <o.rempel@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Peter Mamonov authored on 4 Jun 2019 Sascha Hauer committed on 7 Jun 2019
2019-04-23	2eecaaf Browse files » MIPS: relocation: do not use configurable memory layout ... The relocator is not able to patch properly new location of the stack. To make it work properly it is better to disable HAVE_CONFIGURABLE_MEMORY_LAYOUT. Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Oleksij Rempel authored on 10 Apr 2019 Sascha Hauer committed on 23 Apr 2019
	28ed10d Browse files » MIPS: relocation: add relocation support ... this patch i a port of following patch from u-boot with some additional integration changes and fixes of original code: \| Subject: [PATCH] MIPS: Stop building position independent code \| \| U-Boot has up until now built with -fpic for the MIPS architecture, \| producing position independent code which uses indirection through a \| global offset table, making relocation fairly straightforward as it \| simply involves patching up GOT entries. \| \| Using -fpic does however have some downsides. The biggest of these is \| that generated code is bloated in various ways. For example, function \| calls are indirected through the GOT & the t9 register: \| \| 8f998064 lw t9,-32668(gp) \| 0320f809 jalr t9 \| \| Without -fpic the call is simply: \| \| 0f803f01 jal be00fc04 <puts> \| \| This is more compact & faster (due to the lack of the load & the \| dependency the jump has on its result). It is also easier to read & \| debug because the disassembly shows what function is being called, \| rather than just an offset from gp which would then have to be looked up \| in the ELF to discover the target function. \| \| Another disadvantage of -fpic is that each function begins with a \| sequence to calculate the value of the gp register, for example: \| \| 3c1c0004 lui gp,0x4 \| 279c3384 addiu gp,gp,13188 \| 0399e021 addu gp,gp,t9 \| \| Without using -fpic this sequence no longer appears at the start of each \| function, reducing code size considerably. \| \| This patch switches U-Boot from building with -fpic to building with \| -fno-pic, in order to gain the benefits described above. The cost of \| this is an extra step during the build process to extract relocation \| data from the ELF & write it into a new .rel section in a compact \| format, plus the added complexity of dealing with multiple types of \| relocation rather than the single type that applied to the GOT. The \| benefit is smaller, cleaner, more debuggable code. The relocate_code() \| function is reimplemented in C to handle the new relocation scheme, \| which also makes it easier to read & debug. \| \| Taking maltael_defconfig as an example the size of u-boot.bin built \| using the Codescape MIPS 2016.05-06 toolchain (gcc 4.9.2, binutils \| 2.24.90) shrinks from 254KiB to 224KiB. \| \| Signed-off-by: Paul Burton <paul.burton@imgtec.com> Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Oleksij Rempel authored on 10 Apr 2019 Sascha Hauer committed on 23 Apr 2019
	4de280c Browse files » MIPS: relocation: pass ram size to pbl_main_entry ... To make barebox dynamically relocatable it should know the RAM size to be able to calculate proper new location. Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Oleksij Rempel authored on 10 Apr 2019 Sascha Hauer committed on 23 Apr 2019
2019-02-13	2a17e75 Browse files » Merge branch 'for-next/misc' Sascha Hauer committed on 13 Feb 2019
2019-01-24	a1e0b63 Browse files » MIPS: ath79: add spi and sram bootstrap helpers ... At least some ath79 SoC have build in 32K RAM. It allow us to use lowlevel portion of barebox to bootstrap the system by using JTAG debugger (For example OpenOCD). Since ath79 has no reliable way to stop the CPU execution before reading SPI Flash, this can cause different issues. To avoid it, we need to flash a execution trap with software debug breakpoint to the flash. The workflow should be as follow: - After power on or reset the CPU will start execution of SPI flash. As soon as software debug breakpoint is executed, CPU will halt and notify OpenOCD about breakpoint event. - OpenOCD will load reduced barebox to SRAM and execute it. This part will do all needed low level initialization - PLL, RAM and trigger second breakpoint event. - OpenOCD will load full barebox version to the main RAM and start execution. It can be used for bring-up, so no regular flashing is needed. Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Oleksij Rempel authored on 23 Jan 2019 Sascha Hauer committed on 24 Jan 2019
2019-01-18	9dd59e1 Browse files » move umode_t typedef from asm/types.h to linux/types.h ... Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Antony Pavlov authored on 14 Jan 2019 Sascha Hauer committed on 18 Jan 2019
2019-01-18	c0e0503 Browse files » MIPS: asm/types.h: drop unused stuff ... Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Antony Pavlov authored on 14 Jan 2019 Sascha Hauer committed on 18 Jan 2019
2019-01-03	4a11654 Browse files » MIPS: convert files with not precise GNU version to SPDX ... Default barebox license is GPL-2.0-only. Set it to the files with the missing one. Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Reviewed-by: Roland Hieber <r.hieber@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Oleksij Rempel authored on 22 Dec 2018 Sascha Hauer committed on 3 Jan 2019
2019-01-03	6cd04d0 Browse files » MIPS: migrate all files to SPDX ... Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Reviewed-by: Roland Hieber <r.hieber@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Oleksij Rempel authored on 22 Dec 2018 Sascha Hauer committed on 3 Jan 2019
2018-12-13	01624e9 Browse files » MIPS: multiimage: add ENTRY_FUNCTION macros ... Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Oleksij Rempel authored on 27 Nov 2018 Sascha Hauer committed on 13 Dec 2018
2018-07-02	5500987 Browse files » MIPS: don't include generated header files into MIPS asm files ... This patch came out of discussions in the 'MIPS parallel build breakage' e-mail thread: http://lists.infradead.org/pipermail/barebox/2018-March/032251.html Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Antony Pavlov authored on 29 Jun 2018 Sascha Hauer committed on 2 Jul 2018
2018-05-24	1162bfa Browse files » MIPS: fix copy_to_link_location for 64 bit mode ... MIPS `lw` instruction loads a 32 bit word from memory on both 32 bit and 64 bit systems. On the other hand LONGSIZE is either 4 or 8 depending on selected code model. This discrepancy causes copy_to_link_location failure on 64 bit systems. Signed-off-by: Peter Mamonov <pmamonov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Peter Mamonov authored on 22 May 2018 Sascha Hauer committed on 24 May 2018
	81cf8f6 Browse files » MIPS: add proper IOMEM() declaration for MIPS64 ... Signed-off-by: Peter Mamonov <pmamonov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Peter Mamonov authored on 22 May 2018 Sascha Hauer committed on 24 May 2018
	93110ad Browse files » include/common.h: move IOMEM declaration for MIPS to arch/mips/include/asm/io.h ... Signed-off-by: Peter Mamonov <pmamonov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Peter Mamonov authored on 22 May 2018 Sascha Hauer committed on 24 May 2018
	bc6fb02 Browse files » MIPS: import 64-bit address conversion macros ... Signed-off-by: Peter Mamonov <pmamonov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Peter Mamonov authored on 22 May 2018 Sascha Hauer committed on 24 May 2018
2017-08-15	745aff2 Browse files » MIPS: add virt_to_phys() and phys_to_virt() ... Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com> Signed-off-by: Peter Mamonov <pmamonov@gmail.com> Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Antony Pavlov authored on 11 Aug 2017 Lucas Stach committed on 15 Aug 2017
2017-07-31	6feacdd Browse files » MIPS: add 74Kc info ... This patch is preparation for SoC QCA AR9344 Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Oleksij Rempel authored on 27 Jul 2017 Lucas Stach committed on 31 Jul 2017
2017-01-10	9563a02 Browse files » MIPS: drop redundant debug_ll_outhexw macro defines ... The debug_ll_outhexw macro has no dependency on UART model so we can remove it from UART-dependent header files (debug_ll_ns16550.h and mach-ath79/.../debug_ll.h). On the other hand the only debug_ll_outhexw user is MIPS nmon monitor so we can move the debug_ll_outhexw macro to pbl_nmon.h. Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Antony Pavlov authored on 9 Jan 2017 Sascha Hauer committed on 10 Jan 2017
2016-03-09	28e71b9 Browse files » MIPS: implement dma_sync_* functions ... Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com> Signed-off-by: Peter Mamonov <pmamonov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Peter Mamonov authored on 7 Mar 2016 Sascha Hauer committed on 9 Mar 2016
	0076383 Browse files » MIPS: flush cache on shutdown ... Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com> Signed-off-by: Peter Mamonov <pmamonov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Antony Pavlov authored on 7 Mar 2016 Sascha Hauer committed on 9 Mar 2016
	e3fbe5e Browse files » MIPS: add initial R4000-style cache support ... Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com> Signed-off-by: Peter Mamonov <pmamonov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Antony Pavlov authored on 7 Mar 2016 Sascha Hauer committed on 9 Mar 2016
	5668487 Browse files » MIPS: pbl: import cache init code from U-Boot v2016.01-212-ga3ab2ae ... Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Antony Pavlov authored on 7 Mar 2016 Sascha Hauer committed on 9 Mar 2016
2015-11-26	114409c Browse files » MIPS: import optimized string functions from Linux ... 10x performance gain according to simple test on QEMU malta: barebox:/ time memcpy 0xa0000000 0xa0001000 0x100000 Signed-off-by: Aleksey Kuleshov <rndfax@yandex.ru> Acked-by: Antony Pavlov <antonynpavlov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Aleksey Kuleshov authored on 25 Nov 2015 Sascha Hauer committed on 26 Nov 2015