bcm63xx/u-boot/arch/mips/Kconfig, branch master

mips: mt76xx: Implement new d-cache fix in last_stage_init()

2019-07-05T15:12:27Z

With commit 06985289d452 ("watchdog: Implement generic watchdog_reset() version") the init sequence has changed in arch_misc_init(), resulting in a re-appearance of the d-cache issue on MT7688 boards (e.g. gardena). When this happens, the first (or sometimes later ones as well) TFTP command hangs and does not complete correctly. This leads to the assumption that the d-cache is not in a clean state once the ethernet driver is called (d-cache is used here for the buffers). The old work- around with the cache flush somehow does not work any more now with the new code change. Unfortunately adding CONFIG_SYS_MALLOC_CLEAR_ON_INIT also did not fix this issue. With v2019.07-rc3 it shows again. The time of accessing the data seems to be very important here. It needs to be "very late" in the boot process. Testing has shown, that copying a 64KiB area in DDR at a very late bootup time, directly before calling into the prompt, fixes this issue. Flushing of the complete d-cache does not seem to necessary, as this copy alone seems to fix this problem. Signed-off-by: Stefan Roese Cc: Daniel Schwierzeck

mips: mt76xx: Remove cache workaround and select SYS_MALLOC_CLEAR_ON_INIT

2019-05-24T13:55:17Z

With commit 06985289d452 ("watchdog: Implement generic watchdog_reset() version") the init sequence has changed in arch_misc_init(), resulting in a re-appearance of the d-cache issue on MT7688 boards (e.g. gardena). When this happens, the first (or sometimes later ones as well) TFTP command hangs and does not complete correctly. This leads to the assumption that the d-cache is not in a clean state once the ethernet driver is called (d-cache is used here for the buffers). The old work- around with the cache flush somehow does not work any more now with the new code change. To fix this issue, this patch now removes the old workaround and selects CONFIG_SYS_MALLOC_CLEAR_ON_INIT for ARCH_MTMIPS. With this option the complete malloc area is initialized with zeros (cache lines are touched). Testing has shown that this also fixes the issue on the MT7688 boards. Signed-off-by: Stefan Roese Suggested-by: Daniel Schwierzeck Cc: Daniel Schwierzeck

mips: rename mach-mt7620 to mach-mtmips

2019-05-03T14:43:11Z

Currently mach-mt7620 contains only support for mt7628. To avoid confusion, rename mach-mt7620 to mach-mtmips, which means MediaTek MIPS platforms. MT7620 and MT7628 should be distinguished by SOC_MT7620 and SOC_MT7628 because they do not share the same lowlevel codes. Dependencies of four drivers are changed to SOC_MT7628 as these drivers are only used by MT7628. Cc: Daniel Schwierzeck Reviewed-by: Stefan Roese Signed-off-by: Weijie Gao

mips: jz47xx: Add JZ4780 SoC support

2018-12-19T14:23:01Z

Add initial support for the Ingenic JZ47xx MIPS SoC. Cc: Daniel Schwierzeck Signed-off-by: Paul Burton Signed-off-by: Marek Vasut Signed-off-by: Ezequiel Garcia Reviewed-by: Marek Vasut

MSCC: add support for Ocelot SoCs

2018-12-19T14:23:01Z

This family of SoCs are found in the Microsemi Switches solution and have already a support in the linux kernel. Signed-off-by: Gregory CLEMENT

mips: mt76xx: Flush d-cache in arch_misc_init() to solve d-cache issues

2018-12-19T14:23:01Z

It has been noticed, that sometimes the d-cache is not in a "clean-state" when U-Boot is running on MT7688. This was detected when using the ethernet driver (which uses d-cache) and a TFTP command does not complete. Flushing the complete d-cache (again?) here seems to fix this issue. Signed-off-by: Stefan Roese Cc: Daniel Schwierzeck

mips: mt76xx: Enable watchdog support

2018-11-18T15:02:22Z

This patch enables and starts the watchdog on the MT7620 platform. Currently the WD timeout is configured to 60 seconds. Signed-off-by: Stefan Roese Cc: Daniel Schwierzeck [fixed build error due to missing function prototype arch_misc_init] Signed-off-by: Daniel Schwierzeck

mips: mt76xx: Kconfig: Add ethernet and GPIO support

2018-11-18T15:02:22Z

Imply DM_ETH and DM_GPIO for ARCH_MT7620, as this platform now supports ethernet and GPIO as well. Signed-off-by: Stefan Roese Cc: Daniel Schwierzeck

MIPS: make size of relocation table fixed but configurable

2018-11-02T21:39:07Z

Currently the size of the relocation table will be shrunk to the actual size needed. Although this gives a maximal space saving, it messes up the _end symbol. This breaks features like appended DTBs because the _end symbol doesn't point to the real end of the U-Boot binary. Remove the size shrinking and make the size of the relocation table fixed but configurable. This follows the Linux approach and the user can adjust the size to his needs. Also rename the relocation table section from .rel to .data.reloc to follow the Linux approach and to avoid ambiguities with the .rel.* sections added by the linker. Reported-by: Lars Povlsen Signed-off-by: Daniel Schwierzeck

mips: mt76xx: Add sysreset support

2018-09-23T12:27:51Z

This patch adds the necessary sysreset DT node and enables the required drivers via Kconfig. Signed-off-by: Stefan Roese Cc: Daniel Schwierzeck