diff options
| author | Max Filippov <jcmvbkbc@gmail.com> | 2017-08-08 14:06:14 -0700 |
|---|---|---|
| committer | Max Filippov <jcmvbkbc@gmail.com> | 2017-12-10 16:19:28 -0800 |
| commit | aa6476f76c1678d5d1087b39d3047601f0139ef0 (patch) | |
| tree | 6933cc8650445de1d1ef507db339143c677109ac /arch/xtensa | |
| parent | f4431396be5b26a9960daf502d129b1b5d126f5e (diff) | |
| download | linux-aa6476f76c1678d5d1087b39d3047601f0139ef0.tar.bz2 | |
xtensa: print hardware config ID on startup
Print hardware config ID on startup and config ID recorded in the
configuration if it doesn't match one read from the hardware.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Diffstat (limited to 'arch/xtensa')
| -rw-r--r-- | arch/xtensa/kernel/setup.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/xtensa/kernel/setup.c b/arch/xtensa/kernel/setup.c index 253a0178f1bd..3732c91b7200 100644 --- a/arch/xtensa/kernel/setup.c +++ b/arch/xtensa/kernel/setup.c @@ -317,6 +317,13 @@ static inline int mem_reserve(unsigned long start, unsigned long end) void __init setup_arch(char **cmdline_p) { + pr_info("config ID: %08x:%08x\n", + get_sr(SREG_EPC), get_sr(SREG_EXCSAVE)); + if (get_sr(SREG_EPC) != XCHAL_HW_CONFIGID0 || + get_sr(SREG_EXCSAVE) != XCHAL_HW_CONFIGID1) + pr_info("built for config ID: %08x:%08x\n", + XCHAL_HW_CONFIGID0, XCHAL_HW_CONFIGID1); + *cmdline_p = command_line; platform_setup(cmdline_p); strlcpy(boot_command_line, *cmdline_p, COMMAND_LINE_SIZE); @@ -582,12 +589,14 @@ c_show(struct seq_file *f, void *slot) "model\t\t: Xtensa " XCHAL_HW_VERSION_NAME "\n" "core ID\t\t: " XCHAL_CORE_ID "\n" "build ID\t: 0x%x\n" + "config ID\t: %08x:%08x\n" "byte order\t: %s\n" "cpu MHz\t\t: %lu.%02lu\n" "bogomips\t: %lu.%02lu\n", num_online_cpus(), cpumask_pr_args(cpu_online_mask), XCHAL_BUILD_UNIQUE_ID, + get_sr(SREG_EPC), get_sr(SREG_EXCSAVE), XCHAL_HAVE_BE ? "big" : "little", ccount_freq/1000000, (ccount_freq/10000) % 100, |