bcm63xx/u-boot/board/xilinx/microblaze-generic, branch master

watchdog: Implement generic watchdog_reset() version

2019-04-26T07:16:32Z

This patch tries to implement a generic watchdog_reset() function that can be used by all boards that want to service the watchdog device in U-Boot. This watchdog servicing is enabled via CONFIG_WATCHDOG. Without this approach, new boards or platforms needed to implement a board specific version of this functionality, mostly copy'ing the same code over and over again into their board or platforms code base. With this new generic function, the scattered other functions are now removed to be replaced by the generic one. The new version also enables the configuration of the watchdog timeout via the DT "timeout-sec" property (if enabled via CONFIG_OF_CONTROL). This patch also adds a new flag to the GD flags, to flag that the watchdog is ready to use and adds the pointer to the watchdog device to the GD. This enables us to remove the global "watchdog_dev" variable, which was prone to cause problems because of its potentially very early use in watchdog_reset(), even before the BSS is cleared. Signed-off-by: Stefan Roese Cc: Heiko Schocher Cc: Tom Rini Cc: Michal Simek Cc: "Marek Behún" Cc: Daniel Schwierzeck Cc: Maxim Sloyko Cc: Erik van Luijk Cc: Ryder Lee Cc: Weijie Gao Cc: Simon Glass Cc: "Álvaro Fernández Rojas" Cc: Philippe Reynes Cc: Christophe Leroy Reviewed-by: Michal Simek Tested-by: Michal Simek (on zcu100)

watchdog: Move watchdog_dev to data section (BSS may not be cleared)

2019-04-08T13:21:39Z

This patch moves all instances of static "watchdog_dev" declarations to the "data" section. This may be needed, as the BSS may not be cleared in the early U-Boot phase, where watchdog_reset() is already beeing called. This may result in incorrect pointer access, as the check to "!watchdog_dev" in watchdog_reset() may not be true and the function may continue to run. Signed-off-by: Stefan Roese Cc: Heiko Schocher Cc: Tom Rini Cc: Michal Simek Cc: "Marek Behún" Cc: Daniel Schwierzeck Tested-by: Michal Simek (on zcu100) Reviewed-by: Michal Simek

microblaze: Use standard functions for memory decoding

2018-11-26T09:50:55Z

The standard function is less error prone than custom one. Signed-off-by: Michal Simek

microblaze: Add missing quotes around XILINX_MICROBLAZE0_HW_VER

2018-08-06T06:44:35Z

This issue is reported by kconfiglib: warning: style: quotes recommended around default value for string symbol XILINX_MICROBLAZE0_HW_VER (defined at board/xilinx/microblaze-generic/Kconfig:37) Signed-off-by: Michal Simek

microblaze: Convert generic platform to DM gpio

2018-07-19T08:49:55Z

Converting GPIO to DM requires to do changes in reset subsystem that's why support for Microblaze soft reset via sysreset and GPIO sysreset support was added. These two patches enables enabling GPIO DM. Microblaze soft reset is bind at last reset method. GPIO reset is handled via sysreset with adding this fragment to DT. gpio-restart { compatible = "gpio-restart"; gpios = <&reset_gpio 0 0 0>; /* 3rd cell ACTIVE_HIGH = 0, ACTIVE_LOW = 1 */ }; hard-reset-gpio property is not documented and also handled. Conversion is required. Unfortunately do_reset is required for SPL that's why use only soft microblaze reset for now. Signed-off-by: Michal Simek

microblaze: Support for watchdog_reset in init

2018-07-19T08:49:55Z

We should support watchdog reset so that WATCHDOG_RESET will function properly. Signed-off-by: Shreenidhi Shedi Signed-off-by: Michal Simek

microblaze: Delete Xilinx watchdog related macros

2018-07-19T08:49:55Z

These macros are not required anymore. These will be taken from configuration file. Signed-off-by: Shreenidhi Shedi Signed-off-by: Michal Simek

microblaze: Cosmetic changes in Microblaze related files

2018-07-19T08:49:55Z

Signed-off-by: Shreenidhi Shedi Signed-off-by: Michal Simek

microblaze: Remove unused XILINX_BOARD_NAME macro

2018-07-19T08:49:54Z

This macro is not used anywhere that's why remove it. Signed-off-by: Michal Simek

microblaze: Guard do_reset by CONFIG_SYSRESET

2018-07-19T08:49:54Z

sysreset uclass have own do_reset function which should be used instead of board/platform specific. Signed-off-by: Michal Simek