[PATCH v3 1/1] riscv: reset after crash

[Heinrich Schuchardt]

If an exception occurs on ARM or x86, we call panic() which will try to
reset the board. Do the same on RISC-V.

To avoid -Werror=format-zero-length move a '\n' to the string passed to
panic. We don't need a message here as depending on CONFIG_PANIC_HANG we
will either see

    ### ERROR ### Please RESET the board ###

or

    resetting ...

as next message.

Reviewed-by: Rick Chen <rick at andestech.com>
Signed-off-by: Heinrich Schuchardt <xypron.glpk at gmx.de>
---
v3:
	rebased
v2:
	Remove a superfluous message passed to panic().
---
 arch/riscv/lib/interrupts.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/riscv/lib/interrupts.c b/arch/riscv/lib/interrupts.c
index 35de98e8ce..fb3ce118c1 100644
--- a/arch/riscv/lib/interrupts.c
+++ b/arch/riscv/lib/interrupts.c
@@ -27,7 +27,7 @@ static void show_efi_loaded_images(uintptr_t epc)
 static void show_regs(struct pt_regs *regs)
 {
 #ifdef CONFIG_SHOW_REGS
-	printf("SP:  " REG_FMT " GP:  " REG_FMT " TP:  " REG_FMT "\n",
+	printf("\nSP:  " REG_FMT " GP:  " REG_FMT " TP:  " REG_FMT "\n",
 	       regs->sp, regs->gp, regs->tp);
 	printf("T0:  " REG_FMT " T1:  " REG_FMT " T2:  " REG_FMT "\n",
 	       regs->t0, regs->t1, regs->t2);
@@ -45,7 +45,7 @@ static void show_regs(struct pt_regs *regs)
 	       regs->s7, regs->s8, regs->s9);
 	printf("S10: " REG_FMT " S11: " REG_FMT " T3:  " REG_FMT "\n",
 	       regs->s10, regs->s11, regs->t3);
-	printf("T4:  " REG_FMT " T5:  " REG_FMT " T6:  " REG_FMT "\n\n",
+	printf("T4:  " REG_FMT " T5:  " REG_FMT " T6:  " REG_FMT "\n",
 	       regs->t4, regs->t5, regs->t6);
 #endif
 }
@@ -80,12 +80,12 @@ static void _exit_trap(ulong code, ulong epc, ulong tval, struct pt_regs *regs)
 	       epc, regs->ra, tval);
 	/* Print relocation adjustments, but only if gd is initialized */
 	if (gd && gd->flags & GD_FLG_RELOC)
-		printf("EPC: " REG_FMT " RA: " REG_FMT " reloc adjusted\n\n",
+		printf("EPC: " REG_FMT " RA: " REG_FMT " reloc adjusted\n",
 		       epc - gd->reloc_off, regs->ra - gd->reloc_off);

 	show_regs(regs);
 	show_efi_loaded_images(epc);
-	hang();
+	panic("\n");
 }

 int interrupt_init(void)
--
2.29.2