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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2006-07-04 17:07:18 +1000
committerPaul Mackerras <paulus@samba.org>2006-07-26 01:28:04 +1000
commit98c82472e98469ef23d7c680a0d6be1429540166 (patch)
treedd713a1389008d2c19de3f376745f56751cb5ea6 /arch/powerpc/platforms/powermac/bootx_init.c
parent45507ff3a2c58bc4781688eac1a80979ea972dce (diff)
[POWERPC] More offb/bootx fixes
There were still some issues with offb when BootX doesn't provide a proper display node, this fixes them. This also re-instates the palette hacks that were disabled a couple of kernel versions ago when I converted to the new OF parsing, and shuffles some functions around to avoid prototypes. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/platforms/powermac/bootx_init.c')
-rw-r--r--arch/powerpc/platforms/powermac/bootx_init.c35
1 files changed, 24 insertions, 11 deletions
diff --git a/arch/powerpc/platforms/powermac/bootx_init.c b/arch/powerpc/platforms/powermac/bootx_init.c
index 871b002c9f90..6a026c733f6a 100644
--- a/arch/powerpc/platforms/powermac/bootx_init.c
+++ b/arch/powerpc/platforms/powermac/bootx_init.c
@@ -181,13 +181,18 @@ static void __init bootx_add_chosen_props(unsigned long base,
}
static void __init bootx_add_display_props(unsigned long base,
- unsigned long *mem_end)
+ unsigned long *mem_end,
+ int has_real_node)
{
boot_infos_t *bi = bootx_info;
u32 tmp;
- bootx_dt_add_prop("linux,boot-display", NULL, 0, mem_end);
- bootx_dt_add_prop("linux,opened", NULL, 0, mem_end);
+ if (has_real_node) {
+ bootx_dt_add_prop("linux,boot-display", NULL, 0, mem_end);
+ bootx_dt_add_prop("linux,opened", NULL, 0, mem_end);
+ } else
+ bootx_dt_add_prop("linux,bootx-noscreen", NULL, 0, mem_end);
+
tmp = bi->dispDeviceDepth;
bootx_dt_add_prop("linux,bootx-depth", &tmp, 4, mem_end);
tmp = bi->dispDeviceRect[2] - bi->dispDeviceRect[0];
@@ -241,11 +246,6 @@ static void __init bootx_scan_dt_build_strings(unsigned long base,
DBG(" detected display ! adding properties names !\n");
bootx_dt_add_string("linux,boot-display", mem_end);
bootx_dt_add_string("linux,opened", mem_end);
- bootx_dt_add_string("linux,bootx-depth", mem_end);
- bootx_dt_add_string("linux,bootx-width", mem_end);
- bootx_dt_add_string("linux,bootx-height", mem_end);
- bootx_dt_add_string("linux,bootx-linebytes", mem_end);
- bootx_dt_add_string("linux,bootx-addr", mem_end);
strncpy(bootx_disp_path, namep, 255);
}
@@ -329,10 +329,13 @@ static void __init bootx_scan_dt_build_struct(unsigned long base,
ppp = &pp->next;
}
- if (node == bootx_node_chosen)
+ if (node == bootx_node_chosen) {
bootx_add_chosen_props(base, mem_end);
- if (node == bootx_info->dispDeviceRegEntryOffset)
- bootx_add_display_props(base, mem_end);
+ if (bootx_info->dispDeviceRegEntryOffset == 0)
+ bootx_add_display_props(base, mem_end, 0);
+ }
+ else if (node == bootx_info->dispDeviceRegEntryOffset)
+ bootx_add_display_props(base, mem_end, 1);
/* do all our children */
cpp = &np->child;
@@ -374,6 +377,14 @@ static unsigned long __init bootx_flatten_dt(unsigned long start)
mem_end += 4;
bootx_dt_strend = mem_end;
bootx_scan_dt_build_strings(base, 4, &mem_end);
+ /* Add some strings */
+ bootx_dt_add_string("linux,bootx-noscreen", &mem_end);
+ bootx_dt_add_string("linux,bootx-depth", &mem_end);
+ bootx_dt_add_string("linux,bootx-width", &mem_end);
+ bootx_dt_add_string("linux,bootx-height", &mem_end);
+ bootx_dt_add_string("linux,bootx-linebytes", &mem_end);
+ bootx_dt_add_string("linux,bootx-addr", &mem_end);
+ /* Wrap up strings */
hdr->off_dt_strings = bootx_dt_strbase - mem_start;
hdr->dt_strings_size = bootx_dt_strend - bootx_dt_strbase;
@@ -471,6 +482,7 @@ void __init bootx_init(unsigned long r3, unsigned long r4)
if (bi->dispDeviceDepth == 16)
bi->dispDeviceDepth = 15;
+
#ifdef CONFIG_BOOTX_TEXT
ptr = (unsigned long)bi->logicalDisplayBase;
ptr += bi->dispDeviceRect[1] * bi->dispDeviceRowBytes;
@@ -508,6 +520,7 @@ void __init bootx_init(unsigned long r3, unsigned long r4)
#ifdef CONFIG_BOOTX_TEXT
btext_welcome(bi);
#endif
+
/* New BootX enters kernel with MMU off, i/os are not allowed
* here. This hack will have been done by the boostrap anyway.
*/

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