Commit 0e028bf970b4f99d10970f3fa851caf1783a3c34
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x86: doc: Remove stale sections of 64-bit support
There are some sections in current doc saying 64-bit is unsupported. This apparently is out of date. Remove it. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Showing 1 changed file with 0 additions and 17 deletions Side-by-side Diff
doc/README.x86
| ... | ... | @@ -1160,27 +1160,10 @@ |
| 1160 | 1160 | |
| 1161 | 1161 | See README.u-boot_on_efi and README.uefi for details of EFI support in U-Boot. |
| 1162 | 1162 | |
| 1163 | -64-bit Support | |
| 1164 | --------------- | |
| 1165 | -U-Boot supports booting a 64-bit kernel directly and is able to change to | |
| 1166 | -64-bit mode to do so. However, U-Boot itself is currently always built | |
| 1167 | -in 32-bit mode. Some access to the full memory range is provided with | |
| 1168 | -arch_phys_memset(). | |
| 1169 | - | |
| 1170 | -The development work to make U-Boot itself run in 64-bit mode has not yet | |
| 1171 | -been attempted. The best approach would likely be to build a 32-bit SPL | |
| 1172 | -image for U-Boot, with CONFIG_SPL_BUILD. This could then handle the early CPU | |
| 1173 | -init in 16-bit and 32-bit mode, running the FSP and any other binaries that | |
| 1174 | -are needed. Then it could change to 64-bit model and jump to U-Boot proper. | |
| 1175 | - | |
| 1176 | -Given U-Boot's extensive 64-bit support this has not been a high priority, | |
| 1177 | -but it would be a nice addition. | |
| 1178 | - | |
| 1179 | 1163 | TODO List |
| 1180 | 1164 | --------- |
| 1181 | 1165 | - Audio |
| 1182 | 1166 | - Chrome OS verified boot |
| 1183 | -- Building U-Boot to run in 64-bit mode | |
| 1184 | 1167 | |
| 1185 | 1168 | References |
| 1186 | 1169 | ---------- |