From bce860833ab1e40113eb0efab34d0c8f3b0226b1 Mon Sep 17 00:00:00 2001
From: "Steven J. Hill" <Steven.Hill@imgtec.com>
Date: Mon, 25 Mar 2013 13:27:11 -0500
Subject: MIPS: microMIPS: Add configuration option for microMIPS kernel.
This adds the option to build the Linux kernel using only the
microMIPS ISA. The resulting kernel binary is, at a minimum,
20% smaller than using the MIPS32R2 ISA.
Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
---
arch/mips/kernel/proc.c | 4 ++++
1 file changed, 4 insertions(+)
(limited to 'arch/mips/kernel/proc.c')
diff --git a/arch/mips/kernel/proc.c b/arch/mips/kernel/proc.c
index 7a54f74b7818..26b19daa1792 100644
--- a/arch/mips/kernel/proc.c
+++ b/arch/mips/kernel/proc.c
@@ -99,6 +99,10 @@ static int show_cpuinfo(struct seq_file *m, void *v)
if (cpu_has_vz) seq_printf(m, "%s", " vz");
seq_printf(m, "\n");
+ if (cpu_has_mmips) {
+ seq_printf(m, "micromips kernel\t: %s\n",
+ (read_c0_config3() & MIPS_CONF3_ISA_OE) ? "yes" : "no");
+ }
seq_printf(m, "shadow register sets\t: %d\n",
cpu_data[n].srsets);
seq_printf(m, "kscratch registers\t: %d\n",
--
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