diff options
Diffstat (limited to 'src/soc/intel/broadwell/igd.c')
| -rw-r--r-- | src/soc/intel/broadwell/igd.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/src/soc/intel/broadwell/igd.c b/src/soc/intel/broadwell/igd.c index 31293e5ed3..53d108def5 100644 --- a/src/soc/intel/broadwell/igd.c +++ b/src/soc/intel/broadwell/igd.c @@ -148,8 +148,7 @@ static const struct reg_script broadwell_early_init_script[] = { REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa250, 0x000000ff), REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa25c, 0x00000010), - /* GFXPAUSE settings */ - REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa000, 0x00030020), + /* GFXPAUSE settings (set based on stepping) */ /* ECO Settings */ REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa180, 0x45200000), @@ -167,6 +166,9 @@ static const struct reg_script broadwell_early_init_script[] = { /* Video Frequency Request */ REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa00c, 0x08000000), + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x138158, 0x00000009), + REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x13815c, 0x0000000d), + /* * RC6 Settings */ @@ -489,6 +491,14 @@ static void igd_init(struct device *dev) /* Early init steps */ if (is_broadwell) { reg_script_run_on_dev(dev, broadwell_early_init_script); + + /* Set GFXPAUSE based on stepping */ + if (cpu_stepping() <= (CPUID_BROADWELL_E0 & 0xf) && + systemagent_revision() <= 9) { + gtt_write(0xa000, 0x300ff); + } else { + gtt_write(0xa000, 0x30020); + } } else { reg_script_run_on_dev(dev, haswell_early_init_script); } |