[commit] r1199 - trunk/openbios-devel/arch/sparc32

[repository service]

Author: mcayland
Date: Wed Aug  7 23:22:47 2013
New Revision: 1199
URL: http://tracker.coreboot.org/trac/openbios/changeset/1199

Log:
SPARC32: fix up old-style romvec parameters

Fixing up the generation of bootpath in r1167 exposed a bug since the romvec
parameters were set depending upon hard-coded values of certain aliases in
bootpath. As aliases are now expanded beforehand, the code to set the
old-style parameters was no longer being called.

Rework the code to set these parameters based upon device name instead,
and while we're there change the code to use the my-* words to get
their information rather than string parsing.

Signed-off-by: Mark Cave-Ayland

Modified:
   trunk/openbios-devel/arch/sparc32/boot.c

Modified: trunk/openbios-devel/arch/sparc32/boot.c
==============================================================================
--- trunk/openbios-devel/arch/sparc32/boot.c	Sat Jul 27 15:17:49 2013	(r1198)
+++ trunk/openbios-devel/arch/sparc32/boot.c	Wed Aug  7 23:22:47 2013	(r1199)
@@ -23,9 +23,9 @@
 void go(void)
 {
    ucell address, type, size;
-	int image_retval = 0, proplen, unit, part;
+	int image_retval = 0, proplen, target, device;
    phandle_t chosen;
-	char *prop, *id, bootid;
+	char *prop, *id, *name;
    static char bootpathbuf[128], bootargsbuf[128], buf[128];

/* Get the entry point and the type (see forth/debugging/client.fs) */
@@ -53,40 +53,51 @@
         bootpath = pop_fstr_copy();
         printk("bootpath: %s\n", bootpath);

-        if (!strncmp(bootpathbuf, "cd", 2) || !strncmp(bootpathbuf, "disk", 4)) {
+	/* Now do some work to get hold of the target, partition etc. */
+	push_str(bootpathbuf);
+	feval("open-dev");
+	feval("ihandle>boot-device-handle drop to my-self");
+	push_str("name");
+	fword("get-my-property");
+	POP();
+	name = pop_fstr_copy();
+
+        if (!strncmp(name, "sd", 2)) {
+
+		/*
+		  Old-style SunOS disk paths are given in the form:
+
+			sd(c,t,d):s
+
+		  where:
+		    c = controller (Nth controller in system, usually 0)
+		    t = target (my-unit phys.hi)
+		    d = device/LUN (my-unit phys.lo)
+		    s = slice/partition (my-args)
+		*/

/* Controller currently always 0 */
    	obp_arg.boot_dev_ctrl = 0;

-		/* Grab the device and unit number string (in form unit,partition) */
-		push_str(bootpathbuf);
-		feval("pathres-resolve-aliases ascii @ right-split 2drop");
+		/* Get the target, device and slice */
+		fword("my-unit");
+		target = POP();
+		device = POP();
+
+		fword("my-args");
    	id = pop_fstr_copy();

-		/* A bit hacky, but we have no atoi() function */
-		unit = id[0] - '0';
-		part = id[2] - '0';
-
-		obp_arg.boot_dev_unit = unit;
-		obp_arg.dev_partition = part;
-
-		/* Generate the "oldpath"
-		   FIXME: hardcoding this looks almost definitely wrong.
-		   With sd(0,2,0):b we get to see the solaris kernel though */
-                if (!strncmp(bootpathbuf, "disk", 4)) {
-			bootid = 'd';
-                } else {
-			bootid = 'b';
-                }
+		snprintf(buf, sizeof(buf), "sd(0,%d,%d):%c", target, device, id[0]);

-		snprintf(buf, sizeof(buf), "sd(0,%d,%d):%c", unit, part, bootid);
+		obp_arg.boot_dev_unit = target;
+		obp_arg.dev_partition = id[0] - 'a';

obp_arg.boot_dev[0] = buf[0];
    	obp_arg.boot_dev[1] = buf[1];
    	obp_arg.argv[0] = buf;
         	obp_arg.argv[1] = bootargsbuf;

-        } else if (!strncmp(bootpathbuf, "floppy", 6)) {
+        } else if (!strncmp(name, "SUNW,fdtwo", 10)) {
    	
    	obp_arg.boot_dev_ctrl = 0;
    	obp_arg.boot_dev_unit = 0;
@@ -99,7 +110,7 @@
    	obp_arg.argv[0] = buf;
         	obp_arg.argv[1] = bootargsbuf;

-        } else if (!strncmp(bootpathbuf, "net", 3)) {
+        } else if (!strncmp(name, "le", 2)) {

obp_arg.boot_dev_ctrl = 0;
    	obp_arg.boot_dev_unit = 0;