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authorNico Huber <nico.h@gmx.de>2020-04-26 19:46:35 +0200
committerNico Huber <nico.h@gmx.de>2020-05-27 21:35:16 +0000
commitdd597627295e0063e29ba43a0b2d6fdefb12c2c6 (patch)
tree05dc1402dd060b24e77ed4ce95b2ac21c6aa3e19 /src/northbridge
parentdfdf102000584e38952122c74858e46fa69acc60 (diff)
downloadcoreboot-dd597627295e0063e29ba43a0b2d6fdefb12c2c6.tar.xz
intel/gma: Only enable bus mastering if we are going to use it
Also fix wrong 32-bit writes. Change-Id: Ib038f0cd558223536da08ba2264774db11cd8357 Signed-off-by: Nico Huber <nico.h@gmx.de> Reviewed-on: https://review.coreboot.org/c/coreboot/+/40727 Reviewed-by: Angel Pons <th3fanbus@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/northbridge')
-rw-r--r--src/northbridge/intel/gm45/gma.c8
-rw-r--r--src/northbridge/intel/haswell/gma.c9
-rw-r--r--src/northbridge/intel/i945/gma.c13
-rw-r--r--src/northbridge/intel/ironlake/gma.c8
-rw-r--r--src/northbridge/intel/pineview/gma.c8
-rw-r--r--src/northbridge/intel/sandybridge/gma.c10
-rw-r--r--src/northbridge/intel/x4x/gma.c8
7 files changed, 18 insertions, 46 deletions
diff --git a/src/northbridge/intel/gm45/gma.c b/src/northbridge/intel/gm45/gma.c
index b48b3c3100..6a51daee7c 100644
--- a/src/northbridge/intel/gm45/gma.c
+++ b/src/northbridge/intel/gm45/gma.c
@@ -144,7 +144,6 @@ static void gma_pm_init_post_vbios(struct device *const dev,
static void gma_func0_init(struct device *dev)
{
- u32 reg32;
u8 *mmio;
u8 edid_data_lvds[128];
struct edid edid_lvds;
@@ -152,16 +151,13 @@ static void gma_func0_init(struct device *dev)
intel_gma_init_igd_opregion();
- /* IGD needs to be Bus Master */
- reg32 = pci_read_config32(dev, PCI_COMMAND);
- reg32 |= PCI_COMMAND_MASTER;
- pci_write_config32(dev, PCI_COMMAND, reg32);
-
gtt_res = find_resource(dev, PCI_BASE_ADDRESS_0);
if (gtt_res == NULL)
return;
mmio = res2mmio(gtt_res, 0, 0);
+ if (!CONFIG(NO_GFX_INIT))
+ pci_or_config16(dev, PCI_COMMAND, PCI_COMMAND_MASTER);
if (!CONFIG(MAINBOARD_USE_LIBGFXINIT)) {
/* PCI Init, will run VBIOS */
diff --git a/src/northbridge/intel/haswell/gma.c b/src/northbridge/intel/haswell/gma.c
index fa67fe1982..19341d4d37 100644
--- a/src/northbridge/intel/haswell/gma.c
+++ b/src/northbridge/intel/haswell/gma.c
@@ -458,21 +458,18 @@ static void gma_enable_swsci(void)
static void gma_func0_init(struct device *dev)
{
int lightup_ok = 0;
- u32 reg32;
intel_gma_init_igd_opregion();
- /* IGD needs to be Bus Master */
- reg32 = pci_read_config32(dev, PCI_COMMAND);
- reg32 |= PCI_COMMAND_MASTER;
- pci_write_config32(dev, PCI_COMMAND, reg32);
-
/* Init graphics power management */
gma_pm_init_pre_vbios(dev);
/* Pre panel init */
gma_setup_panel(dev);
+ if (!CONFIG(NO_GFX_INIT))
+ pci_or_config16(dev, PCI_COMMAND, PCI_COMMAND_MASTER);
+
int vga_disable = (pci_read_config16(dev, GGC) & 2) >> 1;
if (CONFIG(MAINBOARD_USE_LIBGFXINIT)) {
diff --git a/src/northbridge/intel/i945/gma.c b/src/northbridge/intel/i945/gma.c
index 71ed4c42ea..183c8f5b59 100644
--- a/src/northbridge/intel/i945/gma.c
+++ b/src/northbridge/intel/i945/gma.c
@@ -660,8 +660,6 @@ static void gma_ngi(struct device *const dev)
static void gma_func0_init(struct device *dev)
{
- u32 reg32;
-
intel_gma_init_igd_opregion();
/* Unconditionally reset graphics */
@@ -672,9 +670,8 @@ static void gma_func0_init(struct device *dev)
while (pci_read_config8(dev, GDRST) & 1)
;
- /* IGD needs to be Bus Master */
- reg32 = pci_read_config32(dev, PCI_COMMAND);
- pci_write_config32(dev, PCI_COMMAND, reg32 | PCI_COMMAND_MASTER);
+ if (!CONFIG(NO_GFX_INIT))
+ pci_or_config16(dev, PCI_COMMAND, PCI_COMMAND_MASTER);
if (CONFIG(MAINBOARD_DO_NATIVE_VGA_INIT)) {
int vga_disable = (pci_read_config16(dev, GGC) & 2) >> 1;
@@ -713,12 +710,10 @@ static void gma_func0_disable(struct device *dev)
static void gma_func1_init(struct device *dev)
{
- u32 reg32;
u8 val;
- /* IGD needs to be Bus Master */
- reg32 = pci_read_config32(dev, PCI_COMMAND);
- pci_write_config32(dev, PCI_COMMAND, reg32 | PCI_COMMAND_MASTER);
+ if (!CONFIG(NO_GFX_INIT))
+ pci_or_config16(dev, PCI_COMMAND, PCI_COMMAND_MASTER);
if (get_option(&val, "tft_brightness") == CB_SUCCESS)
pci_write_config8(dev, 0xf4, val);
diff --git a/src/northbridge/intel/ironlake/gma.c b/src/northbridge/intel/ironlake/gma.c
index 6ba95d30fc..5ccf8a6a6b 100644
--- a/src/northbridge/intel/ironlake/gma.c
+++ b/src/northbridge/intel/ironlake/gma.c
@@ -135,14 +135,10 @@ static void gma_enable_swsci(void)
static void gma_func0_init(struct device *dev)
{
- u32 reg32;
-
intel_gma_init_igd_opregion();
- /* IGD needs to be Bus Master */
- reg32 = pci_read_config32(dev, PCI_COMMAND);
- reg32 |= PCI_COMMAND_MASTER;
- pci_write_config32(dev, PCI_COMMAND, reg32);
+ if (!CONFIG(NO_GFX_INIT))
+ pci_or_config16(dev, PCI_COMMAND, PCI_COMMAND_MASTER);
gtt_res = find_resource(dev, PCI_BASE_ADDRESS_0);
if (!gtt_res || !gtt_res->base)
diff --git a/src/northbridge/intel/pineview/gma.c b/src/northbridge/intel/pineview/gma.c
index 7e5b236bff..2f4b629ee6 100644
--- a/src/northbridge/intel/pineview/gma.c
+++ b/src/northbridge/intel/pineview/gma.c
@@ -218,14 +218,10 @@ static void intel_gma_init(const struct northbridge_intel_pineview_config *info,
static void gma_func0_init(struct device *dev)
{
- u32 reg32;
-
intel_gma_init_igd_opregion();
- /* IGD needs to be Bus Master */
- reg32 = pci_read_config32(dev, PCI_COMMAND);
- reg32 |= PCI_COMMAND_MASTER;
- pci_write_config32(dev, PCI_COMMAND, reg32);
+ if (!CONFIG(NO_GFX_INIT))
+ pci_or_config16(dev, PCI_COMMAND, PCI_COMMAND_MASTER);
if (!CONFIG(MAINBOARD_DO_NATIVE_VGA_INIT)) {
/* PCI init, will run VBIOS */
diff --git a/src/northbridge/intel/sandybridge/gma.c b/src/northbridge/intel/sandybridge/gma.c
index 6e89b4ef35..150b61c9b9 100644
--- a/src/northbridge/intel/sandybridge/gma.c
+++ b/src/northbridge/intel/sandybridge/gma.c
@@ -585,18 +585,14 @@ static void gma_enable_swsci(void)
static void gma_func0_init(struct device *dev)
{
- u32 reg32;
-
intel_gma_init_igd_opregion();
- /* IGD needs to be Bus Master */
- reg32 = pci_read_config32(dev, PCI_COMMAND);
- reg32 |= PCI_COMMAND_MASTER;
- pci_write_config32(dev, PCI_COMMAND, reg32);
-
/* Init graphics power management */
gma_pm_init_pre_vbios(dev);
+ if (!CONFIG(NO_GFX_INIT))
+ pci_or_config16(dev, PCI_COMMAND, PCI_COMMAND_MASTER);
+
if (!CONFIG(MAINBOARD_USE_LIBGFXINIT))
/* PCI Init, will run VBIOS */
pci_dev_init(dev);
diff --git a/src/northbridge/intel/x4x/gma.c b/src/northbridge/intel/x4x/gma.c
index 69b6f7103d..ecbd63e616 100644
--- a/src/northbridge/intel/x4x/gma.c
+++ b/src/northbridge/intel/x4x/gma.c
@@ -22,14 +22,10 @@
static void gma_func0_init(struct device *dev)
{
- u32 reg32;
-
intel_gma_init_igd_opregion();
- /* IGD needs to be Bus Master */
- reg32 = pci_read_config32(dev, PCI_COMMAND);
- reg32 |= PCI_COMMAND_MASTER;
- pci_write_config32(dev, PCI_COMMAND, reg32);
+ if (!CONFIG(NO_GFX_INIT))
+ pci_or_config16(dev, PCI_COMMAND, PCI_COMMAND_MASTER);
/* configure GMBUSFREQ */
pci_update_config16(dev, 0xcc, ~0x1ff, 0xbc);