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authorXavi Drudis Ferran <xdrudis@tinet.cat>2011-02-27 23:58:34 +0000
committerMarc Jones <marc.jones@amd.com>2011-02-27 23:58:34 +0000
commitf7ef421eadd84141334d09e1a044645bef1dbf28 (patch)
tree895cd3bd1e4eccc341c55ee2878758ff14e177b2 /src/cpu/amd
parentd26e5e6bb3209f195ef9cacdda1b18525f30fa62 (diff)
Prepare for next patches (Improving BKDG implementation of P-states,
CPU and northbridge frequency and voltage handling for Fam 10 in SVI mode). No change of behaviour intended. Refactor FAM10 fidvid . Factor out the decision whether to update northbridge frequency and voltage because there was the same code in 3 places and so we can later modify it in one place. Signed-off-by: Xavi Drudis Ferran <xdrudis@tinet.cat> Acked-by: Marc Jones <marcj303@gmail.com> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6393 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/cpu/amd')
-rw-r--r--src/cpu/amd/model_10xxx/fidvid.c55
1 files changed, 22 insertions, 33 deletions
diff --git a/src/cpu/amd/model_10xxx/fidvid.c b/src/cpu/amd/model_10xxx/fidvid.c
index 2d704011b0..90fa07a986 100644
--- a/src/cpu/amd/model_10xxx/fidvid.c
+++ b/src/cpu/amd/model_10xxx/fidvid.c
@@ -280,6 +280,7 @@ static void config_acpi_pwr_state_ctrl_regs(device_t dev) {
pci_write_config32(dev, 0x84, dword);
dword = 0xE600A681;
pci_write_config32(dev, 0x80, dword);
+
}
static void prep_fid_change(void)
@@ -503,18 +504,33 @@ static void transitionVid(u32 targetVid, u8 dev, u8 isNb)
}
}
+static u32 needs_NB_COF_VID_update(void)
+{
+ u8 nb_cof_vid_update;
+ u8 nodes;
+ u8 i;
+
+ /* If any node has nb_cof_vid_update set all nodes need an update. */
+ nodes = get_nodes();
+ nb_cof_vid_update = 0;
+ for (i = 0; i < nodes; i++) {
+ if (pci_read_config32(NODE_PCI(i, 3), 0x1FC) & 1) {
+ nb_cof_vid_update = 1;
+ break;
+ }
+ }
+ return nb_cof_vid_update;
+}
static void init_fidvid_ap(u32 bsp_apicid, u32 apicid, u32 nodeid, u32 coreid)
{
device_t dev;
u32 vid_max;
u32 fid_max;
- u8 nb_cof_vid_update;
+ u8 nb_cof_vid_update = needs_NB_COF_VID_update();
u8 pvimode;
u32 reg1fc;
u32 send;
- u8 nodes;
- u8 i;
printk(BIOS_DEBUG, "FIDVID on AP: %02x\n", apicid);
@@ -522,15 +538,7 @@ static void init_fidvid_ap(u32 bsp_apicid, u32 apicid, u32 nodeid, u32 coreid)
* for SVI and Single-Plane PVI Systems.
*/
- /* If any node has nb_cof_vid_update set all nodes need an update. */
- nodes = get_nodes();
- nb_cof_vid_update = 0;
- for (i = 0; i < nodes; i++) {
- if (pci_read_config32(NODE_PCI(i, 3), 0x1FC) & 1) {
- nb_cof_vid_update = 1;
- break;
- }
- }
+
dev = NODE_PCI(nodeid, 3);
pvimode = (pci_read_config32(dev, 0xA0) >> 8) & 1;
@@ -710,23 +718,13 @@ static void init_fidvid_stage2(u32 apicid, u32 nodeid)
u32 reg1fc;
u32 dtemp;
u32 nbvid;
- u8 nb_cof_vid_update;
- u8 nodes;
+ u8 nb_cof_vid_update = needs_NB_COF_VID_update();
u8 NbVidUpdateAll;
- u8 i;
u8 pvimode;
/* After warm reset finish the fid/vid setup for all cores. */
/* If any node has nb_cof_vid_update set all nodes need an update. */
- nodes = get_nodes();
- nb_cof_vid_update = 0;
- for (i = 0; i < nodes; i++) {
- if (pci_read_config32(NODE_PCI(i, 3), 0x1FC) & 1) {
- nb_cof_vid_update = 1;
- break;
- }
- }
dev = NODE_PCI(nodeid, 3);
pvimode = (pci_read_config32(dev, 0xA0) >> 8) & 1;
@@ -788,7 +786,7 @@ static int init_fidvid_bsp(u32 bsp_apicid, u32 nodes)
device_t dev;
u32 vid_max;
u32 fid_max=0;
- u8 nb_cof_vid_update;
+ u8 nb_cof_vid_update = needs_NB_COF_VID_update();
u32 reg1fc;
u8 pvimode;
@@ -801,15 +799,6 @@ static int init_fidvid_bsp(u32 bsp_apicid, u32 nodes)
* for SVI and Single-Plane PVI Systems.
*/
- /* If any node has nb_cof_vid_update set all nodes need an update. */
- nb_cof_vid_update = 0;
- for (i = 0; i < nodes; i++) {
- if (pci_read_config32(NODE_PCI(i, 3), 0x1FC) & 1) {
- nb_cof_vid_update = 1;
- break;
- }
- }
-
dev = NODE_PCI(0, 3);
pvimode = (pci_read_config32(dev, 0xA0) >> 8) & 1;
reg1fc = pci_read_config32(dev, 0x1FC);