cpuversion: add SoC rev api [1/2]

PD#SWPL-4582

Problem:
Need api to distinguish G12B revB

Solution:
Add rev A/B/C api

Verify:
W400

Change-Id: I5cf82fcfc513f621513914cf83d18fe5c5ec081d
Signed-off-by: Qiufang Dai <qiufang.dai@amlogic.com>

diff --git a/include/linux/amlogic/cpu_version.h b/include/linux/amlogic/cpu_version.h
index 4a19070..d78e79f 100644 (file)
--- a/include/linux/amlogic/cpu_version.h
+++ b/include/linux/amlogic/cpu_version.h
@@ -15,6 +15,9 @@
  *
  */
 
+/*
+ * All of these api should be call after early_initcall stage
+ */
 #ifndef __PLAT_MESON_CPU_H
 #define __PLAT_MESON_CPU_H
 
@@ -196,4 +199,20 @@ static inline bool is_meson_txlx_package_962E(void)
 {
        return is_meson_txlx_cpu() && package_id_is(0x20);
 }
+
+static inline bool is_meson_rev_a(void)
+{
+       return (get_meson_cpu_version(MESON_CPU_VERSION_LVL_MINOR) == 0xA);
+}
+
+static inline bool is_meson_rev_b(void)
+{
+       return (get_meson_cpu_version(MESON_CPU_VERSION_LVL_MINOR) == 0xB);
+}
+
+static inline bool is_meson_rev_c(void)
+{
+       return (get_meson_cpu_version(MESON_CPU_VERSION_LVL_MINOR) == 0xC);
+}
+
 #endif