- See Issue Tracker id-11.
- In addition: Kept K8_HT_FREQ_1G_SUPPORT to support older boards. git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2075 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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@ -1,11 +1,17 @@
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/*
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This should be done by Eric
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2004.12 yhlu add multi ht chain dynamically support
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*/
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#include <device/pci_def.h>
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#include <device/pci_ids.h>
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#include <device/hypertransport_def.h>
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/* We can reduce the size of code generated by romcc by
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* changing all of the fixed size types that live in registers
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* into simple unsigned variables. (ie s/uint8_t/unsigned/g)
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*/
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#ifndef K8_HT_FREQ_1G_SUPPORT
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#define K8_HT_FREQ_1G_SUPPORT 0
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#endif
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@ -130,21 +136,21 @@ static uint16_t ht_read_freq_cap(device_t dev, uint8_t pos)
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/* AMD 8131 Errata 48 */
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if (id == (PCI_VENDOR_ID_AMD | (PCI_DEVICE_ID_AMD_8131_PCIX << 16))) {
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freq_cap &= ~(1 << HT_FREQ_800Mhz);
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return freq_cap;
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}
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/* AMD 8151 Errata 23 */
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if (id == (PCI_VENDOR_ID_AMD | (PCI_DEVICE_ID_AMD_8151_SYSCTRL << 16))) {
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freq_cap &= ~(1 << HT_FREQ_800Mhz);
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return freq_cap;
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}
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/* AMD K8 Unsupported 1Ghz? */
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if (id == (PCI_VENDOR_ID_AMD | (0x1100 << 16))) {
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#if K8_HT_FREQ_1G_SUPPORT == 1
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if (is_cpu_pre_e0()) // CK804 support 1G?
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#endif
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freq_cap &= ~(1 << HT_FREQ_1000Mhz);
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#if K8_HT_FREQ_1G_SUPPORT == 1
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/* Supported starting with E0 */
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device_t dev_2 = PCI_DEV(0,0x18,2);
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if(pci_read_config32(dev_2,0x9c) < 0x20f00)
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#endif
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freq_cap &= ~(1 << HT_FREQ_1000Mhz);
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}
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return freq_cap;
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@ -199,8 +205,10 @@ static int ht_optimize_link(
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/* See if I am changing the link freqency */
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old_freq = pci_read_config8(dev1, pos1 + LINK_FREQ(offs1));
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old_freq &= 0x0f;
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needs_reset |= old_freq != freq;
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old_freq = pci_read_config8(dev2, pos2 + LINK_FREQ(offs2));
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old_freq &= 0x0f;
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needs_reset |= old_freq != freq;
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/* Set the Calulcated link frequency */
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