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authorSimon Glass <sjg@chromium.org>2020-04-08 16:57:20 -0600
committerBin Meng <bmeng.cn@gmail.com>2020-04-16 14:36:28 +0800
commit600f584d8191799acc19464c4a07f3056083057a (patch)
tree87bbba5d9ad49ad045b524d5ce9a1a8d60abd508 /include/cpu.h
parent98036fbdaf0ac1d6dc3ab3cb6db24c020bb65d6f (diff)
cpu: Support querying the address width
Different CPUs may support different address widths, meaning the amount of memory they can address. Add a property for this to the cpu_info struct. 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.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/cpu.h b/include/cpu.h
index 28dd48feb8..6b1b6b37b3 100644
--- a/include/cpu.h
+++ b/include/cpu.h
@@ -44,10 +44,12 @@ enum {
*
* @cpu_freq: Current CPU frequency in Hz
* @features: Flags for supported CPU features
+ * @address_width: Width of the CPU address space in bits (e.g. 32)
*/
struct cpu_info {
ulong cpu_freq;
ulong features;
+ uint address_width;
};
struct cpu_ops {