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| author | Simon Glass <sjg@chromium.org> | 2016-03-06 19:27:49 -0700 |
|---|---|---|
| committer | Bin Meng <bmeng.cn@gmail.com> | 2016-03-17 10:27:22 +0800 |
| commit | 740d5d34b12f49b5e6c48e06dd8f519d9563a7e3 (patch) | |
| tree | a303a6b6ecd24167d18784f59221a91ab274a138 /include/cpu.h | |
| parent | e23c6c28b01785547e0356667ab435ef904af531 (diff) | |
| download | u-boot-imx-740d5d34b12f49b5e6c48e06dd8f519d9563a7e3.zip u-boot-imx-740d5d34b12f49b5e6c48e06dd8f519d9563a7e3.tar.gz u-boot-imx-740d5d34b12f49b5e6c48e06dd8f519d9563a7e3.tar.bz2 | |
cpu: Add support for microcode version and CPU ID
Some CPUs use microcode and each core can have a different version of
microcode loaded. Also some CPUs support the concept of an integer ID used
for identification purposes. Add support for these in the CPU uclass.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Diffstat (limited to 'include/cpu.h')
| -rw-r--r-- | include/cpu.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/cpu.h b/include/cpu.h index bfb0db2..bda5315 100644 --- a/include/cpu.h +++ b/include/cpu.h @@ -15,15 +15,20 @@ * device. * * @cpu_id: Platform-specific way of identifying the CPU. + * @ucode_version: Microcode version, if CPU_FEAT_UCODE is set */ struct cpu_platdata { int cpu_id; + int ucode_version; + ulong device_id; }; /* CPU features - mostly just a placeholder for now */ enum { CPU_FEAT_L1_CACHE = 0, /* Supports level 1 cache */ CPU_FEAT_MMU = 1, /* Supports virtual memory */ + CPU_FEAT_UCODE = 2, /* Requires/uses microcode */ + CPU_FEAT_DEVICE_ID = 3, /* Provides a device ID */ CPU_FEAT_COUNT, }; |