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2020-07-11	eb54e4f Browse files » ARM: at91: sama5d2: reuse stack set-up by first stage ... Stack is always set up to end of SRAM before PBL, either by ROM code or by first stage bootloader, be it at91bootstrap or barebox in a later commit, so no need to change the stack pointer again. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Ahmad Fatoum authored on 1 Jul 2020 Sascha Hauer committed on 11 Jul 2020
	87603c7 Browse files » ARM: at91: add helpers for chain-loading barebox from SD-card ... With PBL FAT support implemented, provide an sama5d2_sdhci_start_image helper that can be called from the PBL to chainload a barebox.bin file from the first FAT partition. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Ahmad Fatoum authored on 1 Jul 2020 Sascha Hauer committed on 11 Jul 2020
	f322224 Browse files » ARM: at91: add code for sama5 boot source detection ... SAMA5 BootROM passes information about the boot source in the r4 register. Add functions to parse these. To make use of this, entry point must back up the r4 register, because otherwise it's clobbered by local variable use. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Ahmad Fatoum authored on 1 Jul 2020 Sascha Hauer committed on 11 Jul 2020
	666643c Browse files » ARM: at91: extend low level PMC driver for generic clk support ... The SAMA5D2 and SAM9X60 both feature generic clocks, which we already support in barebox proper, but not in PBL. Add PBL support for setting the parent and enabling them, so we may use it to enable the SDMMC peripherals in first stage. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Ahmad Fatoum authored on 1 Jul 2020 Sascha Hauer committed on 11 Jul 2020
	53d48be Browse files » ARM: at91: add necessary Advanced Interrupt Controller configuration ... Without reconfiguration of the AIC redirection, the OS interrupt handling will misbehave later on. Add it to the SoC init. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Ahmad Fatoum authored on 1 Jul 2020 Sascha Hauer committed on 11 Jul 2020
	c0edbe4 Browse files » ARM: at91: add sama5d2 cache init ... The L2 cache controller needs some initialization before use. Same goes for the CAN SRAM, do so after the MMU setup. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Ahmad Fatoum authored on 1 Jul 2020 Sascha Hauer committed on 11 Jul 2020
	6199e56 Browse files » ARM: at91: sama5d2: add sama5d2 matrix configuration ... Different peripherals, including the SDRAM, are unusable without prior matrix configuration. Port over the necessary at91bootstrap parts for sama5d2 use. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Ahmad Fatoum authored on 1 Jul 2020 Sascha Hauer committed on 11 Jul 2020
	652fa36 Browse files » ARM: at91: implement sama5d2 lowlevel init ... Port over the low level initialization for sama5d2 SoCs from at91bootstrap. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Ahmad Fatoum authored on 1 Jul 2020 Sascha Hauer committed on 11 Jul 2020
	0dbd1a8 Browse files » ARM: at91: watchdog: implement at91_wdt_disable ... Board code might want to disable the watchdog in PBL and enable it later prior to boot. Provide a helper to do so. Reviewed-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Ahmad Fatoum authored on 1 Jul 2020 Sascha Hauer committed on 11 Jul 2020
	823d440 Browse files » ARM: at91: import low level DDRAMC initialization code from at91bootstrap ... This commit imports DDRAMC initialization routines for use in PBL from https://github.com/linux4sam/at91bootstrap/blob/v3.8.12/driver/ddramc.c Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Ahmad Fatoum authored on 1 Jul 2020 Sascha Hauer committed on 11 Jul 2020
	ef76748 Browse files » ARM: at91: import early_udelay from at91bootstrap ... For use by the incoming at91bootstrap DDRAMC initialization code, this commit provides an early_udelay function usable in PBL imported from https://github.com/linux4sam/at91bootstrap/blob/v3.8.12/driver/at91_pit.c Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Ahmad Fatoum authored on 1 Jul 2020 Sascha Hauer committed on 11 Jul 2020
	a84a4e0 Browse files » ARM: at91: replace at91sam9_ddrsdr.h with at91bootstrap's at91_ddrsdrc.h ... Instead of adding missing definitions to the existing at91sam9_ddrsdr.h and adapting the incoming DDRAM initialization code from at91bootstrap, just replace the lightly used existing header with: https://github.com/linux4sam/at91bootstrap/blob/v3.8.12/include/arch/at91_ddrsdrc.h For easier comprehension, the replacement is done in three steps: This last step copies the memory size querying functions from at91sam9_ddrsdr.h to at91_ddrsdrc.h, then deletes it and fixes all references. Reviewed-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Ahmad Fatoum authored on 1 Jul 2020 Sascha Hauer committed on 11 Jul 2020
	51f9962 Browse files » ARM: at91: migrate at91sam9_ddrsdr.h to use at91bootstrap's at91_ddrsdrc.h ... Instead of adding missing definitions to the existing at91sam9_ddrsdr.h and adapting the incoming DDRAM initialization code from at91bootstrap, just replace the lightly used existing header with: https://github.com/linux4sam/at91bootstrap/blob/v3.8.12/include/arch/at91_ddrsdrc.h For easier comprehension, the replacement is done in three steps: Here the existing at91sam9_ddrsdr.h has its now duplicate (in function, not name) macros removed and existing users are migrated to use the new header. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Ahmad Fatoum authored on 1 Jul 2020 Sascha Hauer committed on 11 Jul 2020
	e026b2c Browse files » ARM: at91: import at91bootstrap's at91_ddrsdrc.h ... Instead of adding missing definitions to the existing at91sam9_ddrsdr.h and adapting the incoming DDRAM initialization code from at91bootstrap, just replace the lightly used existing header with: https://github.com/linux4sam/at91bootstrap/blob/v3.8.12/include/arch/at91_ddrsdrc.h For easier comprehension, the replacement is done in three steps: Here the header is imported. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Ahmad Fatoum authored on 1 Jul 2020 Sascha Hauer committed on 11 Jul 2020
	66cfbb0 Browse files » ARM: at91: sama5d2: cast peripheral base addresses to __iomem pointers ... The peripheral addresses should be always cast with IOMEM() anyway, so do this directly in the header to make user code less verbose. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Ahmad Fatoum authored on 1 Jul 2020 Sascha Hauer committed on 11 Jul 2020
	5ecc406 Browse files » ARM: at91: remove <mach/hardware.h> include from assembly code ... They are unused and force all headers included by it to have __ASSEMBLY__ guards for non-preprocessor code. Avoid this. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Ahmad Fatoum authored on 1 Jul 2020 Sascha Hauer committed on 11 Jul 2020
2020-07-09	44f7e03 Browse files » ARM: configs: Remove unused Kconfig symbol 'NAND_IMX_BBM' ... This Kconfig symbol has been removed in 2ad441bb7e78 ("mtd: nand-imx: Create BBT automatically when necessary") Signed-off-by: Robert Karszniewicz <r.karszniewicz@phytec.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Robert Karszniewicz authored on 6 Jul 2020 Sascha Hauer committed on 9 Jul 2020
2020-07-05	5cf6b93 Browse files » ARM: stm32mp: dts: extend now upstream stm32mp157c-lxa-mc1.dts ... With the recent v5.8-rc1 device tree sync, we can drop everything but the barebox-specific parts from the barebox device tree. The rest now comes from the upstream device tree. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Ahmad Fatoum authored on 23 Jun 2020 Sascha Hauer committed on 5 Jul 2020
2020-07-05	e307bc5 Browse files » ARM: dts: vexpress-v2p-ca15: adapt fixed NOR flash partition setup ... Roland already fixed the vexpress-v2p-ca9: > Upstream DTS commit 62a5017bf825c9e4d317 ("ARM: dts: vexpress: specify > AFS partition") [1] introduced an empty node at /smb@4000000 > /motherboard/flash@0,00000000/partitions, which is preferred by the OF > partitions parser over the single partition nodes. In the same commit, > upstream set the compatible to "arm,arm-firmware-suite", which barebox > does not know about. Adapt our fixed partition setup accordingly by > wrapping all partitions in an extra "partitions" node with the correct > compatible. > [1]: https://git.kernel.org/linus/62a5017bf825c9e4d3176eb975a01c329a9f36 Do the same for the vexpress-v2p-ca15. While at it use the new label: added along with 6940ba22c66a ("dts: update to v5.3-rc1"). This way we aren't (build-)broken, when the upstream path changes in v5.8-rc1. Fixes: 6940ba22c66ac1c71350 ("dts: update to v5.3-rc1") Cc: Roland Hieber <r.hieber@pengutronix.de> Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Ahmad Fatoum authored on 23 Jun 2020 Sascha Hauer committed on 5 Jul 2020
2020-07-01	c55d8cb Browse files » arm: module: Allow modules outside of bl range ... Unlike the Linux kernel, barebox does not have a dedicated heap for storing modules. Therefore, if the system memory configuration places the general heap further away than can be reached by a 'bl' instruction (24 bits of address, or 16 MiB), then the module relocations will fail due to being out of range. Allocate PLTs when loading modules so that jumps and calls whose targets are too far away for their relative offsets to be encoded in the instructions themselves can be bounced via veneers in the module's PLT. The modules will use slightly more memory, but after rounding up to page size, the actual memory footprint is usually the same. Adoption of Linux commits: 66e94ba3c8ea ARM: kernel: avoid brute force search on PLT generation 1031a7e674d1 ARM: kernel: sort relocation sections before allocating PLTs 05123fef0982 ARM: kernel: allocate PLT entries only for external symbols 35fa91eed817 ARM: kernel: merge core and init PLTs 7d485f647c1f ARM: 8220/1: allow modules outside of bl range Signed-off-by: David Dgien <dgienda125@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> David Dgien authored on 29 Jun 2020 Sascha Hauer committed on 1 Jul 2020
	4b7b828 Browse files » arm: elf: Add THM relocation types ... Signed-off-by: David Dgien <dgienda125@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> David Dgien authored on 29 Jun 2020 Sascha Hauer committed on 1 Jul 2020
	e53a886 Browse files » arm: makefile: Fix compiler flag variable ... In order for ARM modules to compile with the correct relocation types, they must be built without -fPIE. Move -fPIE from KBUILD_CPPFLAGS to KBUILD_CFLAGS_KERNEL so that the flag is only included when compiling files being built into the barebox image. Signed-off-by: David Dgien <dgienda125@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> David Dgien authored on 29 Jun 2020 Sascha Hauer committed on 1 Jul 2020
	4493253 Browse files » ARM: dts: vf610-zii-dev-rev-c: Expose fiber EEPROM modules ... EEPROM on fiber optic modules present on Rev C ZII VF610 Dev board can be exposed as AT24 compatible devices. Add corresponding DT nodes needed for that. Signed-off-by: Chris Healy <cphealy@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Chris Healy authored on 28 Jun 2020 Sascha Hauer committed on 1 Jul 2020
2020-06-26	c6114a6 Browse files » treewide: make use of PTR_ERR_OR_ZERO ... PTR_ERR_OR_ZERO is designed to replace boiler plate like: if (IS_ERR(x)) return PTR_ERR(x); return 0; Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Uwe Kleine-König authored on 24 Jun 2020 Sascha Hauer committed on 26 Jun 2020
2020-06-23	238cf33 Browse files » ARM: at91: choose proper parent for both MCI clocks ... When booting from SDMMC0, Use of SDMMC1 fails with: ERROR: clk: couldn't set sdmmc1_gclk clk rate to 480000000 (-22), current rate: 32768 This is because the first stage bootloader only reparents the boot SDMMC instance and barebox does no automatic reparenting for the other one. Force both clocks to have a suitable parent. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Ahmad Fatoum authored on 22 Jun 2020 Sascha Hauer committed on 23 Jun 2020
	ffa73e1 Browse files » ARM: at91: add at91sam9/sama5 reset reason detection ... The reset controller status register contains information about the last reset's cause. Tell barebox about it. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Ahmad Fatoum authored on 22 Jun 2020 Sascha Hauer committed on 23 Jun 2020
	4a9a8f3 Browse files » ARM: socfpga: dts: remove unused nodes and phandles ... The phandles are unreferenced anywhere. They are likely a remnant of copy and paste from another device tree that makes use of them, e.g. the socfpga_cyclone5_socrates.dts. Drop them. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Ahmad Fatoum authored on 18 Jun 2020 Sascha Hauer committed on 23 Jun 2020
	19222f6 Browse files » ARM: zynqmp: dts: drop now superfluous zynqmp.dtsi ... zynqmp.dtsi's only node is now available in the upstream dtsi at same path and same contents, so we can drop the file again. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Ahmad Fatoum authored on 18 Jun 2020 Sascha Hauer committed on 23 Jun 2020
	d22c0bf Browse files » ARM: i.MX: mx53-qsrb: dts: remove now-superfluous override ... This gpio-keys node is now available upstream long with the GPIO_ACTIVE_LOW flag, so we can drop the barebox override. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Ahmad Fatoum authored on 18 Jun 2020 Sascha Hauer committed on 23 Jun 2020
	d15d6c9 Browse files » ARM: i.MX7: dts: replace commented-out code with status = "disabled" ... A status = "disabled" node should act the same as if it were uncommented, with the difference that a board that does have the resistor populated could easily fixup the status. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Ahmad Fatoum authored on 18 Jun 2020 Sascha Hauer committed on 23 Jun 2020