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authorBhupesh Sharma <bhupesh.sharma@freescale.com>2015-03-20 19:28:20 -0700
committerYork Sun <yorksun@freescale.com>2015-04-23 08:55:57 -0700
commitd27bf906dac9d85ca2426a7f42299d0560f4a968 (patch)
treed18927eadaf86f22be27997ca07c9b3094d3be56 /arch/arm/cpu/armv8/fsl-lsch3/cpu.c
parentcd348efa6c8c38cc95495a34d784f9ea159ca41d (diff)
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armv8/fsl-ch3: Add support to print RCW configuration
This patch adds support to print out the Reset Configuration Word information. Signed-off-by: Bhupesh Sharma <bhupesh.sharma@freescale.com> Signed-off-by: York Sun <yorksun@freescale.com>
Diffstat (limited to 'arch/arm/cpu/armv8/fsl-lsch3/cpu.c')
-rw-r--r--arch/arm/cpu/armv8/fsl-lsch3/cpu.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv8/fsl-lsch3/cpu.c b/arch/arm/cpu/armv8/fsl-lsch3/cpu.c
index caa48f2c3d..07064a32b9 100644
--- a/arch/arm/cpu/armv8/fsl-lsch3/cpu.c
+++ b/arch/arm/cpu/armv8/fsl-lsch3/cpu.c
@@ -371,6 +371,7 @@ u32 fsl_qoriq_core_to_type(unsigned int core)
#ifdef CONFIG_DISPLAY_CPUINFO
int print_cpuinfo(void)
{
+ struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
struct sys_info sysinfo;
char buf[32];
unsigned int i, core;
@@ -394,6 +395,19 @@ int print_cpuinfo(void)
printf(" DP-DDR: %-4s MHz", strmhz(buf, sysinfo.freq_ddrbus2));
puts("\n");
+ /* Display the RCW, so that no one gets confused as to what RCW
+ * we're actually using for this boot.
+ */
+ puts("Reset Configuration Word (RCW):");
+ for (i = 0; i < ARRAY_SIZE(gur->rcwsr); i++) {
+ u32 rcw = in_le32(&gur->rcwsr[i]);
+
+ if ((i % 4) == 0)
+ printf("\n %02x:", i * 4);
+ printf(" %08x", rcw);
+ }
+ puts("\n");
+
return 0;
}
#endif
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