mirror of https://gitee.com/openkylin/linux.git
f4151b9ba8
Right now TLB entry 0 ist used as UART0 mapping for the early debug output (via CONFIG_SERIAL_TEXT_DEBUG). This causes problems when many TLB's get used upon Linux bootup (e.g. while PCIe scanning behind bridges and/or switches on 440SPe platforms). This will overwrite the TLB 0 entry and further debug output's may crash/hang the system. This patch moves the early debug UART0 TLB entry from 0 to 62 as done in arch/powerpc. This way it is in the "pinned" area and will not get overwritten. Also the arch/ppc/mm/44x_mmu.c code is now synced with the newer code from arch/powerpc. Signed-off-by: Stefan Roese <sr@denx.de> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com> |
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| .. | ||
| 4xx_io | ||
| 8xx_io | ||
| 8260_io | ||
| boot | ||
| configs | ||
| kernel | ||
| lib | ||
| mm | ||
| platforms | ||
| syslib | ||
| xmon | ||
| .gitignore | ||
| Kconfig | ||
| Kconfig.debug | ||
| Makefile | ||