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drm/ast: add AST 2400 support.

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This is ported from the userspace driver.

Untested on any ast2400 hw so far.

Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie
2014-03-28 09:18:45 +10:00
parent f1f62f2ccb
commit 1453bf4c48
4 changed files with 20 additions and 14 deletions
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23
drivers/gpu/drm/ast/ast_main.c
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@@ -72,7 +72,10 @@ static int ast_detect_chip(struct drm_device *dev)
ast->chip = AST1100;
DRM_INFO("AST 1180 detected\n");
} else {
if (dev->pdev->revision >= 0x20) {
if (dev->pdev->revision >= 0x30) {
ast->chip = AST2400;
DRM_INFO("AST 2400 detected\n");
} else if (dev->pdev->revision >= 0x20) {
ast->chip = AST2300;
DRM_INFO("AST 2300 detected\n");
} else if (dev->pdev->revision >= 0x10) {
@@ -121,13 +124,14 @@ static int ast_detect_chip(struct drm_device *dev)
ast->support_wide_screen = true;
else {
ast->support_wide_screen = false;
if (ast->chip == AST2300) {
ast_write32(ast, 0xf004, 0x1e6e0000);
ast_write32(ast, 0xf000, 0x1);
data = ast_read32(ast, 0x1207c);
if ((data & 0x300) == 0) /* ast1300 */
ast->support_wide_screen = true;
}
ast_write32(ast, 0xf004, 0x1e6e0000);
ast_write32(ast, 0xf000, 0x1);
data = ast_read32(ast, 0x1207c);
data &= 0x300;
if (ast->chip == AST2300 && data == 0x0) /* ast1300 */
ast->support_wide_screen = true;
if (ast->chip == AST2400 && data == 0x100) /* ast1400 */
ast->support_wide_screen = true;
}
break;
}
@@ -157,7 +161,7 @@ static int ast_get_dram_info(struct drm_device *dev)
else
ast->dram_bus_width = 32;
if (ast->chip == AST2300) {
if (ast->chip == AST2300 || ast->chip == AST2400) {
switch (data & 0x03) {
case 0:
ast->dram_type = AST_DRAM_512Mx16;
@@ -344,6 +348,7 @@ int ast_driver_load(struct drm_device *dev, unsigned long flags)
if (ast->chip == AST2100 ||
ast->chip == AST2200 ||
ast->chip == AST2300 ||
ast->chip == AST2400 ||
ast->chip == AST1180) {
dev->mode_config.max_width = 1920;
dev->mode_config.max_height = 2048;