The ColdFire 5272 is the only member of its SoC family, so no chip
identification read is necessary. But it does have a revision number
register, so read and report that.
Signed-off-by: Greg Ungerer <gerg@xxxxxxxxxxxxxx>
---
arch/m68k/coldfire/m5272.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/arch/m68k/coldfire/m5272.c b/arch/m68k/coldfire/m5272.c
index 734dab657fe3..60b71ed828b6 100644
--- a/arch/m68k/coldfire/m5272.c
+++ b/arch/m68k/coldfire/m5272.c
@@ -22,6 +22,7 @@
#include <asm/mcfsim.h>
#include <asm/mcfuart.h>
#include <asm/mcfclk.h>
+#include <asm/setup.h>
/***************************************************************************/
@@ -80,6 +81,14 @@ static void m5272_cpu_reset(void)
/***************************************************************************/
+static void __init m5272_probe_cpu(void)
+{
+ u32 v;
+
+ v = readl(MCFSIM_DIR);
+ m68k_cpurevision = v >> 28;
+}
+
void __init config_BSP(char *commandp, int size)
{
#if defined (CONFIG_MOD5272)
@@ -99,6 +108,8 @@ void __init config_BSP(char *commandp, int size)
mach_reset = m5272_cpu_reset;
mach_sched_init = hw_timer_init;
+
+ m5272_probe_cpu();
}
/***************************************************************************/
--
2.25.1
