4 files changed, 7 insertions, 4 deletions

diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index a281bd6e94db..8a4cae78f03c 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -228,11 +228,12 @@ config MARCH_Z196
           not work on older machines.
 
 config MARCH_ZEC12
-        bool "IBM zEC12"
+        bool "IBM zBC12 and zEC12"
         select HAVE_MARCH_ZEC12_FEATURES if 64BIT
         help
-          Select this to enable optimizations for IBM zEC12 (2827 series). The
-          kernel will be slightly faster but will not work on older machines.
+          Select this to enable optimizations for IBM zBC12 and zEC12 (2828 and
+          2827 series). The kernel will be slightly faster but will not work on
+          older machines.
 
 endchoice
 
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index 497451ec5e26..aeed8a61fa0d 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -994,6 +994,7 @@ static void __init setup_hwcaps(void)
                 strcpy(elf_platform, "z196");
                 break;
         case 0x2827:
+        case 0x2828:
                 strcpy(elf_platform, "zEC12");
                 break;
         }
diff --git a/arch/s390/mm/init.c b/arch/s390/mm/init.c
index ce36ea80e4f9..ad446b0c55b6 100644
--- a/arch/s390/mm/init.c
+++ b/arch/s390/mm/init.c
@@ -69,6 +69,7 @@ static void __init setup_zero_pages(void)
                 order = 2;
                 break;
         case 0x2827:    /* zEC12 */
+        case 0x2828:    /* zEC12 */
         default:
                 order = 5;
                 break;
diff --git a/arch/s390/oprofile/init.c b/arch/s390/oprofile/init.c
index ffeb17ce7f31..930783d2c99b 100644
--- a/arch/s390/oprofile/init.c
+++ b/arch/s390/oprofile/init.c
@@ -440,7 +440,7 @@ static int oprofile_hwsampler_init(struct oprofile_operations *ops)
                 switch (id.machine) {
                 case 0x2097: case 0x2098: ops->cpu_type = "s390/z10"; break;
                 case 0x2817: case 0x2818: ops->cpu_type = "s390/z196"; break;
-                case 0x2827:              ops->cpu_type = "s390/zEC12"; break;
+                case 0x2827: case 0x2828: ops->cpu_type = "s390/zEC12"; break;
                 default: return -ENODEV;
                 }
         }