arm: stm32mp: add function get_soc_name

Add a function get_soc_name to get a string with the full name
of the SOC "STM32MP15xxx Rev.x"

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Acked-by: Patrice Chotard <patrice.chotard@st.com>

2 files changed, 15 insertions, 3 deletions

diff --git a/arch/arm/mach-stm32mp/cpu.c b/arch/arm/mach-stm32mp/cpu.c
index 5febed7..9c5e044 100644
--- a/arch/arm/mach-stm32mp/cpu.c
+++ b/arch/arm/mach-stm32mp/cpu.c
@@ -279,8 +279,7 @@ u32 get_cpu_package(void)
 	return get_otp(BSEC_OTP_PKG, PKG_SHIFT, PKG_MASK);
 }
 
-#if defined(CONFIG_DISPLAY_CPUINFO)
-int print_cpuinfo(void)
+void get_soc_name(char name[SOC_NAME_SIZE])
 {
 	char *cpu_s, *cpu_r, *pkg;
 
@@ -344,7 +343,16 @@ int print_cpuinfo(void)
 		break;
 	}
 
-	printf("CPU: STM32MP%s%s Rev.%s\n", cpu_s, pkg, cpu_r);
+	snprintf(name, SOC_NAME_SIZE, "STM32MP%s%s Rev.%s", cpu_s, pkg, cpu_r);
+}
+
+#if defined(CONFIG_DISPLAY_CPUINFO)
+int print_cpuinfo(void)
+{
+	char name[SOC_NAME_SIZE];
+
+	get_soc_name(name);
+	printf("CPU: %s\n", name);
 
 	return 0;
 }
diff --git a/arch/arm/mach-stm32mp/include/mach/sys_proto.h b/arch/arm/mach-stm32mp/include/mach/sys_proto.h
index da46c11..065b7b2 100644
--- a/arch/arm/mach-stm32mp/include/mach/sys_proto.h
+++ b/arch/arm/mach-stm32mp/include/mach/sys_proto.h
@@ -29,6 +29,10 @@ u32 get_cpu_package(void);
 #define PKG_AC_TFBGA361	2
 #define PKG_AD_TFBGA257	1
 
+/* Get SOC name */
+#define SOC_NAME_SIZE 20
+void get_soc_name(char name[SOC_NAME_SIZE]);
+
 /* return boot mode */
 u32 get_bootmode(void);