45a904af38
The Aspeed SoCs have a dual boot function for firmware fail-over recovery. The system auto-reboots from the second flash if the main flash does not boot successfully within a certain amount of time. This function is called alternate boot (ABR) in the FMC controllers. On AST2400/AST2500, ABR is enabled by hardware strapping in SCU70 to enable the 2nd watchdog timer, on AST2600, through register SCU510. If the boot on the the main flash succeeds, the firmware should disable the 2nd watchdog timer. If not, the BMC is reset and the CE0 and CE1 mappings are swapped to restart the BMC from the 2nd flash. On the AST2600, the ABR registers controlling the 2nd watchdog timer were moved from the watchdog register to the FMC controller and the FMC model should be able to control WDT2 through its own register set. This requires more work. For now, add dummy read/write handlers to let the FW disable the 2nd watchdog without error. Reviewed-by: Peter Delevoryas <pdel@fb.com> Reported-by: Peter Delevoryas <pdel@fb.com> Signed-off-by: Cédric Le Goater <clg@kaod.org> |
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| .. | ||
| aspeed_smc.c | ||
| imx_spi.c | ||
| Kconfig | ||
| meson.build | ||
| mss-spi.c | ||
| npcm7xx_fiu.c | ||
| omap_spi.c | ||
| pl022.c | ||
| sifive_spi.c | ||
| ssi.c | ||
| stm32f2xx_spi.c | ||
| trace-events | ||
| trace.h | ||
| xilinx_spi.c | ||
| xilinx_spips.c | ||