From: jasper <jasper@openbsd.org>
Date: Sat, 12 Jul 2014 20:36:52 +0000 (+0000)
Subject: - replace main() with mips_init() so we can save the arguments from uboot to
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=cb7bb8ecebd186b6290cc0dfd24db62bb35789f3;p=openbsd

- replace main() with mips_init() so we can save the arguments from uboot to
  pass it to the kernel later on. also use it to get the clock frequency.
- implement getsecs() so the bootprompt timeout works

input/ok miod@ pirofti@
---

diff --git a/sys/arch/octeon/stand/boot/libsa.h b/sys/arch/octeon/stand/boot/libsa.h
index 90c6061b384..28b282cc7a1 100644
--- a/sys/arch/octeon/stand/boot/libsa.h
+++ b/sys/arch/octeon/stand/boot/libsa.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: libsa.h,v 1.1 2013/06/05 01:02:29 jasper Exp $	*/
+/*	$OpenBSD: libsa.h,v 1.2 2014/07/12 20:36:52 jasper Exp $	*/
 
 /*
  * Copyright (c) 2013 Jasper Lievisse Adriaanse <jasper@openbsd.org>
@@ -34,7 +34,6 @@ void    run_loadfile(u_long *, int);
 /*
  * CN30XX UART
  */
-
 void	cn30xxuartcnprobe(struct consdev *);
 void	cn30xxuartcninit(struct consdev *);
 void	cn30xxuartcnputc(dev_t, int);
@@ -44,3 +43,5 @@ int	cn30xxuartcngetc(dev_t);
  * clock
  */
 void	delay(int);
+u_int	cp0_get_count(void);
+
diff --git a/sys/arch/octeon/stand/boot/machdep.c b/sys/arch/octeon/stand/boot/machdep.c
index 15c7482e908..78d6ae877a2 100644
--- a/sys/arch/octeon/stand/boot/machdep.c
+++ b/sys/arch/octeon/stand/boot/machdep.c
@@ -1,8 +1,8 @@
-/*	$OpenBSD: machdep.c,v 1.2 2013/06/13 20:01:01 jasper Exp $	*/
+/*	$OpenBSD: machdep.c,v 1.3 2014/07/12 20:36:52 jasper Exp $	*/
 
 /*
  * Copyright (c) 2009, 2010 Miodrag Vallat.
- * Copyright (c) 2013 Jasper Lievisse Adriaanse <jasper@openbsd.org>
+ * Copyright (c) 2013,2014 Jasper Lievisse Adriaanse <jasper@openbsd.org>
  *
  * Permission to use, copy, modify, and distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
@@ -45,16 +45,28 @@
 #include <sys/param.h>
 #include <lib/libkern/libkern.h>
 #include "libsa.h"
+#include <stand/boot/cmd.h>
 #include <machine/cpu.h>
 #include <machine/octeonreg.h>
 #include <machine/octeonvar.h>
-#include <stand/boot/cmd.h>
 
+struct boot_desc *boot_desc;
+struct boot_info *boot_info;
+
+/*
+ * We need to save the arguments u-boot setup for us, so we can pass them
+ * onwards to the kernel later on.
+ */
 int
-main()
+mips_init(__register_t a0, __register_t a1, __register_t a2 __unused,
+	__register_t a3)
 {
+	boot_desc = (struct boot_desc *)a3;
+	boot_info =
+		(struct boot_info *)PHYS_TO_CKSEG0(boot_desc->boot_info_addr);
+
 	boot(0);
-	return (0);
+	return 0;
 }
 
 /*
@@ -141,9 +153,12 @@ devboot(dev_t dev, char *path)
 }
 
 time_t
-getsecs()
+getsecs(void)
 {
-	return (0);
+	u_int ticks = cp0_get_count();
+	uint32_t freq = boot_desc->eclock;
+
+	return (time_t)((0xffffffff - ticks) / freq);
 }
 
 void
@@ -158,4 +173,3 @@ _rtt()
 	octeon_xkphys_write_8(OCTEON_CIU_BASE + CIU_SOFT_RST, 1);
 	for (;;) ;
 }
-
diff --git a/sys/arch/octeon/stand/boot/start.S b/sys/arch/octeon/stand/boot/start.S
index 136ab44f0b1..926c28588e7 100644
--- a/sys/arch/octeon/stand/boot/start.S
+++ b/sys/arch/octeon/stand/boot/start.S
@@ -1,4 +1,4 @@
-/*	$OpenBSD: start.S,v 1.2 2013/06/05 01:09:09 jasper Exp $	*/
+/*	$OpenBSD: start.S,v 1.3 2014/07/12 20:36:52 jasper Exp $	*/
 
 /*
  * Copyright (c) 2001-2004 Opsycon AB  (www.opsycon.se / www.opsycon.com)
@@ -38,6 +38,13 @@
 	.globl	__start
 	.globl	kernel_text
 kernel_text = __start
+LEAF(cp0_get_count, 0)
+        MFC0    v0, COP_0_COUNT
+        MFC0_HAZARD
+        j       ra
+        NOP
+END(cp0_get_count)
+
 __start:
 /* initialize ebase */
 	dla	t0, 0xffffffff80000000
@@ -71,7 +78,8 @@ __start:
 	PTR_S	ra, CF_RA_OFFS(t0)		# save uboot return address
 	PTR_S	sp, 0(t0)			# and stack
 	move	sp, t0
-	jal	main				# main(argc, argv, envp, callvec, esym)
+	jal	mips_init			# mips_init(argc, argv, envp,
+	nop					#    callvec, esym)
 
 	beqz	v0, 1f				# upon failure, return to uboot
 	nop