enumerate cpu based on different string on ARM

bogomips is removed by timer-backed delay loop (commit 9fc2105a)
in ARM kernel. Using other suitable string to decide to enumerate each
cpu.

Signed-off-by: Sanjay Singh Rawat <sanjay.rawat@linaro.org>

1 files changed, 12 insertions, 0 deletions

diff --git a/src/cpu/cpu.cpp b/src/cpu/cpu.cpp
index b3b6166..105c066 100644
--- a/src/cpu/cpu.cpp
+++ b/src/cpu/cpu.cpp
@@ -296,6 +296,18 @@ void enumerate_cpus(void)
 				number = -2;
 			}
 		}
+		/* bogomips is removed in ARM, using CPU revision to enumerate */
+		if (strncasecmp(line, "CPU revision\t", 13) == 0) {
+			if (number == -1) {
+				/* Not all /proc/cpuinfo include "processor\t". */
+				number = 0;
+			}
+			if (number >= 0) {
+				handle_one_cpu(number, vendor, family, model);
+				set_max_cpu(number);
+				number = -2;
+			}
+		}
 	}