target/riscv: fix compile error with gcc 8.1.1

Fix compile error:
src/target/riscv/riscv-011.c: In function ‘slot_offset’:
src/target/riscv/riscv-011.c:238:4: error: this statement may fall through
 [-Werror=implicit-fallthrough=]
    switch (slot) {
    ^~~~~~
src/target/riscv/riscv-011.c:243:3: note: here
   case 64:
   ^~~~

Fixes: a51ab8ddf63a ("Add RISC-V support.")
Change-Id: I7fa86b305bd90cc590fd4359c3698632d44712e5
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/4618
Tested-by: jenkins
Reviewed-by: Jiri Kastner <cz172638@gmail.com>
Reviewed-by: Oleksij Rempel <linux@rempel-privat.de>
Reviewed-by: Tim Newsome <tim@sifive.com>
Reviewed-by: Paul Fertser <fercerpav@gmail.com>

diff --git a/src/target/riscv/riscv-011.c b/src/target/riscv/riscv-011.c
index f2a68698b1a9cf3bf21f9385e2ef3c95b089e00e..498da5ad5a207c08c154b363169ec5855037bafd 100644 (file)
--- a/src/target/riscv/riscv-011.c
+++ b/src/target/riscv/riscv-011.c
@@ -240,6 +240,7 @@ static unsigned int slot_offset(const struct target *target, slot_t slot)
                                case SLOT1: return 5;
                                case SLOT_LAST: return info->dramsize-1;
                        }
                                case SLOT1: return 5;
                                case SLOT_LAST: return info->dramsize-1;
                        }

+                       break;

                case 64:
                        switch (slot) {
                                case SLOT0: return 4;
                case 64:
                        switch (slot) {
                                case SLOT0: return 4;