diff options
| author | Xavi Drudis Ferran <xdrudis@tinet.cat> | 2011-02-27 23:58:34 +0000 |
|---|---|---|
| committer | Marc Jones <marc.jones@amd.com> | 2011-02-27 23:58:34 +0000 |
| commit | f7ef421eadd84141334d09e1a044645bef1dbf28 (patch) | |
| tree | 895cd3bd1e4eccc341c55ee2878758ff14e177b2 /src/cpu/amd | |
| parent | d26e5e6bb3209f195ef9cacdda1b18525f30fa62 (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.c | 55 |
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); |