x86: Add TSC timer

[u-boot] / arch / x86 / cpu / coreboot / coreboot.c

diff --git a/arch/x86/cpu/coreboot/coreboot.c b/arch/x86/cpu/coreboot/coreboot.c
index 9c9431e0d9dc3f869884f6b10d2d4c0bd147d4ef..4a7dae4936524e4109d01f41346a123cfce31cc2 100644 (file)
--- a/arch/x86/cpu/coreboot/coreboot.c
+++ b/arch/x86/cpu/coreboot/coreboot.c
@@ -26,6 +26,7 @@
 #include <asm/u-boot-x86.h>
 #include <flash.h>
 #include <netdev.h>
+#include <ns16550.h>
 #include <asm/msr.h>
 #include <asm/cache.h>
 #include <asm/io.h>
@@ -68,24 +69,21 @@ int board_early_init_r(void)
 void show_boot_progress(int val)
 {
 #if MIN_PORT80_KCLOCKS_DELAY
-       static uint32_t prev_stamp;
-       static uint32_t base;
-
        /*
         * Scale the time counter reading to avoid using 64 bit arithmetics.
         * Can't use get_timer() here becuase it could be not yet
         * initialized or even implemented.
         */
-       if (!prev_stamp) {
-               base = rdtsc() / 1000;
-               prev_stamp = 0;
+       if (!gd->arch.tsc_prev) {
+               gd->arch.tsc_base_kclocks = rdtsc() / 1000;
+               gd->arch.tsc_prev = 0;
        } else {
                uint32_t now;
 
                do {
-                       now = rdtsc() / 1000 - base;
-               } while (now < (prev_stamp + MIN_PORT80_KCLOCKS_DELAY));
-               prev_stamp = now;
+                       now = rdtsc() / 1000 - gd->arch.tsc_base_kclocks;
+               } while (now < (gd->arch.tsc_prev + MIN_PORT80_KCLOCKS_DELAY));
+               gd->arch.tsc_prev = now;
        }
 #endif
        outb(val, 0x80);
@@ -138,3 +136,12 @@ int board_final_cleanup(void)
 
        return 0;
 }
+
+void panic_puts(const char *str)
+{
+       NS16550_t port = (NS16550_t)0x3f8;
+
+       NS16550_init(port, 1);
+       while (*str)
+               NS16550_putc(port, *str++);
+}