x86: remove simnow earlyprintk support

Impact: remove obsolete code

The later versions of SimNow! actually all have serial console
emulation, so the direct interface isn't needed anymore. So remove
the undocumented simnow earlyprintk console.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

diff --git a/arch/x86/kernel/early_printk.c b/arch/x86/kernel/early_printk.c
index 34ad997d3834dc773b71ae4f27e18828447d2853..23b138e31e9c2fe229c42050ab2c5e864cac4710 100644 (file)
--- a/arch/x86/kernel/early_printk.c
+++ b/arch/x86/kernel/early_printk.c
@@ -875,49 +875,6 @@ static struct console early_dbgp_console = {
 };
 #endif
 
-/* Console interface to a host file on AMD's SimNow! */
-
-static int simnow_fd;
-
-enum {
-       MAGIC1 = 0xBACCD00A,
-       MAGIC2 = 0xCA110000,
-       XOPEN = 5,
-       XWRITE = 4,
-};
-
-static noinline long simnow(long cmd, long a, long b, long c)
-{
-       long ret;
-
-       asm volatile("cpuid" :
-                    "=a" (ret) :
-                    "b" (a), "c" (b), "d" (c), "0" (MAGIC1), "D" (cmd + MAGIC2));
-       return ret;
-}
-
-static void __init simnow_init(char *str)
-{
-       char *fn = "klog";
-
-       if (*str == '=')
-               fn = ++str;
-       /* error ignored */
-       simnow_fd = simnow(XOPEN, (unsigned long)fn, O_WRONLY|O_APPEND|O_CREAT, 0644);
-}
-
-static void simnow_write(struct console *con, const char *s, unsigned n)
-{
-       simnow(XWRITE, simnow_fd, (unsigned long)s, n);
-}
-
-static struct console simnow_console = {
-       .name =         "simnow",
-       .write =        simnow_write,
-       .flags =        CON_PRINTBUFFER,
-       .index =        -1,
-};
-
 /* Direct interface for emergencies */
 static struct console *early_console = &early_vga_console;
 static int __initdata early_console_initialized;
@@ -960,10 +917,6 @@ static int __init setup_early_printk(char *buf)
                max_ypos = boot_params.screen_info.orig_video_lines;
                current_ypos = boot_params.screen_info.orig_y;
                early_console = &early_vga_console;
-       } else if (!strncmp(buf, "simnow", 6)) {
-               simnow_init(buf + 6);
-               early_console = &simnow_console;
-               keep_early = 1;
 #ifdef CONFIG_EARLY_PRINTK_DBGP
        } else if (!strncmp(buf, "dbgp", 4)) {
                if (early_dbgp_init(buf+4) < 0)