diff options
Diffstat (limited to 'drivers/gpu/drm/ast/ast_2600.c')
| -rw-r--r-- | drivers/gpu/drm/ast/ast_2600.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/gpu/drm/ast/ast_2600.c b/drivers/gpu/drm/ast/ast_2600.c index f58a2ceddb3a..08614090068d 100644 --- a/drivers/gpu/drm/ast/ast_2600.c +++ b/drivers/gpu/drm/ast/ast_2600.c @@ -27,13 +27,46 @@ */ #include "ast_drv.h" +#include "ast_post.h" /* * POST */ +void ast_2600_set_def_ext_reg(struct ast_device *ast) +{ + static const u8 extreginfo[] = { 0x0f, 0x04, 0x1c, 0xff }; + u8 i, index, reg; + const u8 *ext_reg_info; + + /* reset scratch */ + for (i = 0x81; i <= 0x9f; i++) + ast_set_index_reg(ast, AST_IO_VGACRI, i, 0x00); + + ext_reg_info = extreginfo; + index = 0xa0; + while (*ext_reg_info != 0xff) { + ast_set_index_reg_mask(ast, AST_IO_VGACRI, index, 0x00, *ext_reg_info); + index++; + ext_reg_info++; + } + + /* disable standard IO/MEM decode if secondary */ + /* ast_set_index_reg-mask(ast, AST_IO_VGACRI, 0xa1, 0xff, 0x3); */ + + /* Set Ext. Default */ + ast_set_index_reg_mask(ast, AST_IO_VGACRI, 0x8c, 0x00, 0x01); + ast_set_index_reg_mask(ast, AST_IO_VGACRI, 0xb7, 0x00, 0x00); + + /* Enable RAMDAC for A1 */ + reg = 0x04; + ast_set_index_reg_mask(ast, AST_IO_VGACRI, 0xb6, 0xff, reg); +} + int ast_2600_post(struct ast_device *ast) { + ast_2600_set_def_ext_reg(ast); + if (ast->tx_chip == AST_TX_ASTDP) return ast_dp_launch(ast); |