This commit adds CPU and silicon version information
consuming the SLCR IDCODE and DEVCFG MCTRL registers,
respectively.
Signed-off-by: Ariel D'Alessandro <ar...@vanguardiasur.com.ar>
Signed-off-by: Ezequiel Garcia <ezequ...@vanguardiasur.com.ar>
---
arch/arm/mach-zynq/cpu.c | 46 ++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 46 insertions(+)
diff --git a/arch/arm/mach-zynq/cpu.c b/arch/arm/mach-zynq/cpu.c
index 53a07b0059c2..602f483c162b 100644
--- a/arch/arm/mach-zynq/cpu.c
+++ b/arch/arm/mach-zynq/cpu.c
@@ -35,6 +35,25 @@ static const struct {
};
#endif
+#ifdef CONFIG_DISPLAY_CPUINFO
+static const struct {
+ u8 idcode;
+ const char *cpuinfo;
+} zynq_cpu_info[] = {
+ { .idcode = XILINX_ZYNQ_7007S, .cpuinfo = XILINX_XC7Z007S_NAME },
+ { .idcode = XILINX_ZYNQ_7010, .cpuinfo = XILINX_XC7Z010_NAME },
+ { .idcode = XILINX_ZYNQ_7012S, .cpuinfo = XILINX_XC7Z012S_NAME },
+ { .idcode = XILINX_ZYNQ_7014S, .cpuinfo = XILINX_XC7Z014S_NAME },
+ { .idcode = XILINX_ZYNQ_7015, .cpuinfo = XILINX_XC7Z015_NAME },
+ { .idcode = XILINX_ZYNQ_7020, .cpuinfo = XILINX_XC7Z020_NAME },
+ { .idcode = XILINX_ZYNQ_7030, .cpuinfo = XILINX_XC7Z030_NAME },
+ { .idcode = XILINX_ZYNQ_7035, .cpuinfo = XILINX_XC7Z035_NAME },
+ { .idcode = XILINX_ZYNQ_7045, .cpuinfo = XILINX_XC7Z045_NAME },
+ { .idcode = XILINX_ZYNQ_7100, .cpuinfo = XILINX_XC7Z100_NAME },
+ { /* Sentinel */ },
+};
+#endif
+
int arch_cpu_init(void)
{
zynq_slcr_unlock();
@@ -99,3 +118,30 @@ const xilinx_desc *zynq_fpga_desc(void)
return NULL;
}
#endif
+
+#ifdef CONFIG_DISPLAY_CPUINFO
+int print_cpuinfo(void)
+{
+ u32 idcode, version;
+ bool found;
+ u8 i;
+
+ idcode = zynq_slcr_get_idcode();
+ found = false;
+ for (i = 0; zynq_cpu_info[i].idcode; i++) {
+ if (zynq_cpu_info[i].idcode == idcode) {
+ found = true;
+ break;
+ }
+ }
+
+ version = zynq_get_silicon_version() << 1;
+ if (version > (PCW_SILICON_VERSION_3 << 1))
+ version += 1;
+ if (found) {
+ printf("CPU: Zynq %s\n", zynq_cpu_info[i].cpuinfo);
+ printf("Silicon: v%d.%d\n", version >> 1, version & 1);
+ }
+ return 0;
+}
+#endif
--
2.15.1
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