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drm/nouveau/bios: fix INIT_GPIO for new chipsets 

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2011-07-03 13:40:01 +10:00
parent d7f8172ca9
commit 75139063b7
1 changed files with 51 additions and 22 deletions
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73
drivers/gpu/drm/nouveau/nouveau_bios.c
View File

@ -3221,6 +3221,49 @@ init_8d(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
return 1;
}
static void
init_gpio_unknv50(struct nvbios *bios, struct dcb_gpio_entry *gpio)
{
const uint32_t nv50_gpio_ctl[2] = { 0xe100, 0xe28c };
u32 r, s, v;
/* Not a clue, needs de-magicing */
r = nv50_gpio_ctl[gpio->line >> 4];
s = (gpio->line & 0x0f);
v = bios_rd32(bios, r) & ~(0x00010001 << s);
switch ((gpio->entry & 0x06000000) >> 25) {
case 1:
v |= (0x00000001 << s);
break;
case 2:
v |= (0x00010000 << s);
break;
default:
break;
}
bios_wr32(bios, r, v);
}
static void
init_gpio_unknvd0(struct nvbios *bios, struct dcb_gpio_entry *gpio)
{
u32 v, i;
v = bios_rd32(bios, 0x00d610 + (gpio->line * 4));
v &= 0xffffff00;
v |= (gpio->entry & 0x00ff0000) >> 16;
bios_wr32(bios, 0x00d610 + (gpio->line * 4), v);
i = (gpio->entry & 0x1f000000) >> 24;
if (i) {
v = bios_rd32(bios, 0x00d640 + ((i - 1) * 4));
v &= 0xffffff00;
v |= gpio->line;
bios_wr32(bios, 0x00d640 + ((i - 1) * 4), v);
}
}
static int
init_gpio(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
{
@ -3235,7 +3278,6 @@ init_gpio(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
struct drm_nouveau_private *dev_priv = bios->dev->dev_private;
struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio;
const uint32_t nv50_gpio_ctl[2] = { 0xe100, 0xe28c };
int i;
if (dev_priv->card_type < NV_50) {
@ -3248,33 +3290,20 @@ init_gpio(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
for (i = 0; i < bios->dcb.gpio.entries; i++) {
struct dcb_gpio_entry *gpio = &bios->dcb.gpio.entry[i];
uint32_t r, s, v;
BIOSLOG(bios, "0x%04X: Entry: 0x%08X\n", offset, gpio->entry);
BIOSLOG(bios, "0x%04X: set gpio 0x%02x, state %d\n",
offset, gpio->tag, gpio->state_default);
if (bios->execute)
pgpio->set(bios->dev, gpio->tag, gpio->state_default);
/* The NVIDIA binary driver doesn't appear to actually do
* any of this, my VBIOS does however.
*/
/* Not a clue, needs de-magicing */
r = nv50_gpio_ctl[gpio->line >> 4];
s = (gpio->line & 0x0f);
v = bios_rd32(bios, r) & ~(0x00010001 << s);
switch ((gpio->entry & 0x06000000) >> 25) {
case 1:
v |= (0x00000001 << s);
break;
case 2:
v |= (0x00010000 << s);
break;
default:
break;
}
bios_wr32(bios, r, v);
if (!bios->execute)
continue;
pgpio->set(bios->dev, gpio->tag, gpio->state_default);
if (dev_priv->card_type < NV_D0)
init_gpio_unknv50(bios, gpio);
else
init_gpio_unknvd0(bios, gpio);
}
return 1;