fuloong support

grub-core/boot/mips/yeeloong/fwstart.S

@@ -25,6 +25,9 @@
 #include <grub/cs5536.h>
 #include <grub/smbus.h>
 
+#define GRUB_MACHINE_SERIAL_PORT GRUB_MACHINE_SERIAL_PORT0
+#define GRUB_MACHINE_SERIAL_DIVISOR_115200 GRUB_MACHINE_SERIAL_PORT0_DIVISOR_115200
+
 	.set noreorder
 	.set noat
 	.set nomacro

grub-core/kern/mips/startup.S

@@ -20,6 +20,7 @@
 #include <grub/symbol.h>
 #include <grub/offsets.h>
 #include <grub/machine/memory.h>
+#include <grub/machine/kernel.h>
 #include <grub/offsets.h>
 
 #define BASE_ADDR 8	
@@ -59,6 +60,8 @@ VARIABLE (grub_arch_memsize)
 	.long 0
 VARIABLE (grub_arch_highmemsize)
 	.long 0
+VARIABLE (grub_arch_machine)
+	.long GRUB_ARCH_MACHINE_FULOONG
 #endif
 cont:
 	/* Save our base.  */

grub-core/kern/mips/yeeloong/init.c

@@ -208,8 +208,11 @@ grub_machine_init (void)
   grub_font_init ();
   grub_gfxterm_init ();
 
+  if (grub_arch_machine == GRUB_ARCH_MACHINE_YEELOONG)
+    {
       grub_keylayouts_init ();
       grub_at_keyboard_init ();
+    }
 
   grub_terminfo_init ();
   grub_serial_init ();

grub-core/loader/mips/linux.c

@@ -33,11 +33,13 @@
 #include <grub/machine/time.h>
 
 #ifdef GRUB_MACHINE_MIPS_YEELOONG
-/* This can be detected on runtime from PMON, but:
+#include <grub/machine/kernel.h>
-     a) it wouldn't work when GRUB is the firmware
+
-   and
+const char loongson_machtypes[][60] =
-     b) for now we only support Yeeloong anyway.  */
+  {
-#define LOONGSON_MACHTYPE "machtype=lemote-yeeloong-2f-8.9inches"
+    [GRUB_ARCH_MACHINE_YEELOONG] = "machtype=lemote-yeeloong-2f-8.9inches",
+    [GRUB_ARCH_MACHINE_FULOONG]  = "machtype=lemote-fuloong-2f-unknown"
+  };
 #endif
 
 static grub_dl_t my_mod;
@@ -222,7 +224,7 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
 
   /* For arguments.  */
   linux_argc = argc;
-#ifdef LOONGSON_MACHTYPE
+#ifdef GRUB_MACHINE_MIPS_YEELOONG
   linux_argc++;
 #endif
   /* Main arguments.  */
@@ -237,8 +239,8 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
   /* Normal arguments.  */
   for (i = 1; i < argc; i++)
     size += ALIGN_UP (grub_strlen (argv[i]) + 1, 4);
-#ifdef LOONGSON_MACHTYPE
+#ifdef GRUB_MACHINE_MIPS_YEELOONG
-  size += ALIGN_UP (sizeof (LOONGSON_MACHTYPE), 4);
+  size += ALIGN_UP (sizeof (loongson_machtypes[0]), 4);
 #endif
 
   /* rd arguments.  */
@@ -277,14 +279,20 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
   linux_argv++;
   linux_args += ALIGN_UP (sizeof ("a0"), 4);
 
-#ifdef LOONGSON_MACHTYPE
+#ifdef GRUB_MACHINE_MIPS_YEELOONG
+  {
+    unsigned mtype = grub_arch_machine;
+    if (mtype >= ARRAY_SIZE (loongson_machtypes))
+      mtype = 0;
     /* In Loongson platform, it is the responsibility of the bootloader/firmware
        to supply the OS kernel with machine type information.  */
-  grub_memcpy (linux_args, LOONGSON_MACHTYPE, sizeof (LOONGSON_MACHTYPE));
+    grub_memcpy (linux_args, loongson_machtypes[mtype],
+		 sizeof (loongson_machtypes[mtype]));
     *linux_argv = (grub_uint8_t *) linux_args - (grub_uint8_t *) playground
       + target_addr;
     linux_argv++;
-  linux_args += ALIGN_UP (sizeof (LOONGSON_MACHTYPE), 4);
+    linux_args += ALIGN_UP (sizeof (loongson_machtypes[mtype]), 4);
+  }
 #endif
 
   for (i = 1; i < argc; i++)

grub-core/term/serial.c

@@ -26,6 +26,9 @@
 #include <grub/extcmd.h>
 #include <grub/i18n.h>
 #include <grub/list.h>
+#ifdef GRUB_MACHINE_MIPS_YEELOONG
+#include <grub/machine/kernel.h>
+#endif
 
 #define FOR_SERIAL_PORTS(var) FOR_LIST_ELEMENTS((var), (grub_serial_ports))
 
@@ -296,17 +299,22 @@ grub_serial_register (struct grub_serial_port *port)
   port->term_out = out;
   grub_terminfo_output_register (out, "vt100");
 #ifdef GRUB_MACHINE_MIPS_YEELOONG
-  if (grub_strcmp (port->name, "com0") == 0)
+  if (grub_strcmp (port->name, 
+		   (grub_arch_machine == GRUB_ARCH_MACHINE_YEELOONG)
+		   ? "com0" : "com2") == 0)
     {
       grub_term_register_input_active ("serial_*", in);
       grub_term_register_output_active ("serial_*", out);
     }
   else
-#endif
     {
+      grub_term_register_input_inactive ("serial_*", in);
+      grub_term_register_output_inactive ("serial_*", out);
+    }
+#else
   grub_term_register_input ("serial_*", in);
   grub_term_register_output ("serial_*", out);
-    }
+#endif
 
   return GRUB_ERR_NONE;
 }

include/grub/mips/yeeloong/kernel.h

@@ -21,11 +21,16 @@
 
 #include <grub/symbol.h>
 
+#define GRUB_ARCH_MACHINE_YEELOONG 0
+#define GRUB_ARCH_MACHINE_FULOONG 1
+
 #ifndef ASM_FILE
 
 void EXPORT_FUNC (grub_reboot) (void) __attribute__ ((noreturn));
 void EXPORT_FUNC (grub_halt) (void) __attribute__ ((noreturn));
 
+extern grub_uint32_t EXPORT_VAR (grub_arch_machine);
+
 #endif
 
 #endif /* ! GRUB_KERNEL_MACHINE_HEADER */

include/grub/mips/yeeloong/serial.h

@@ -19,11 +19,14 @@
 #ifndef GRUB_MACHINE_SERIAL_HEADER
 #define GRUB_MACHINE_SERIAL_HEADER	1
 
-#define GRUB_MACHINE_SERIAL_DIVISOR_115200 2
+#define GRUB_MACHINE_SERIAL_PORT0_DIVISOR_115200 2
-#define GRUB_MACHINE_SERIAL_PORT  0xbff003f8
+#define GRUB_MACHINE_SERIAL_PORT2_DIVISOR_115200 1
+#define GRUB_MACHINE_SERIAL_PORT0  0xbff003f8
+#define GRUB_MACHINE_SERIAL_PORT1  0xbfd003f8
+#define GRUB_MACHINE_SERIAL_PORT2  0xbfd002f8
 
 #ifndef ASM_FILE
-#define GRUB_MACHINE_SERIAL_PORTS { GRUB_MACHINE_SERIAL_PORT }
+#define GRUB_MACHINE_SERIAL_PORTS { GRUB_MACHINE_SERIAL_PORT0, GRUB_MACHINE_SERIAL_PORT1, GRUB_MACHINE_SERIAL_PORT2 }
 #else
 #endif
 

include/grub/term.h

@@ -251,6 +251,14 @@ grub_term_register_input (const char *name __attribute__ ((unused)),
     }
 }
 
+static inline void
+grub_term_register_input_inactive (const char *name __attribute__ ((unused)),
+				   grub_term_input_t term)
+{
+  grub_list_push (GRUB_AS_LIST_P (&grub_term_inputs_disabled),
+		  GRUB_AS_LIST (term));
+}
+
 static inline void
 grub_term_register_input_active (const char *name __attribute__ ((unused)),
 				 grub_term_input_t term)
@@ -275,6 +283,14 @@ grub_term_register_output (const char *name __attribute__ ((unused)),
     }
 }
 
+static inline void
+grub_term_register_output_inactive (const char *name __attribute__ ((unused)),
+				    grub_term_output_t term)
+{
+  grub_list_push (GRUB_AS_LIST_P (&grub_term_outputs_disabled),
+		  GRUB_AS_LIST (term));
+}
+
 static inline void
 grub_term_register_output_active (const char *name __attribute__ ((unused)),
 				  grub_term_output_t term)