diff options
| author | Timothy Pearson <tpearson@raptorengineeringinc.com> | 2015-06-12 19:43:38 -0500 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2015-10-23 20:02:52 +0200 |
| commit | 4cde9784e01b6024e90c4fe5f1966d91e153707c (patch) | |
| tree | 93f56cca8ddbfda181a431fcbc75cfdb889c0ad6 /src/southbridge | |
| parent | a690a78cdacf83badeac6fd62c0ea7033b7c789c (diff) | |
southbridge/amd/sr5650: Fix GPP3a link training in higher width modes
Change-Id: I7503ae42eb8bc91411413ef2cc7e7a723df7091a
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-on: http://review.coreboot.org/11990
Reviewed-by: Edward O'Callaghan <edward.ocallaghan@koparo.com>
Tested-by: build bot (Jenkins)
Diffstat (limited to 'src/southbridge')
| -rw-r--r-- | src/southbridge/amd/sr5650/pcie.c | 51 |
1 files changed, 47 insertions, 4 deletions
diff --git a/src/southbridge/amd/sr5650/pcie.c b/src/southbridge/amd/sr5650/pcie.c index 3720a61aaa..a2cc54ee86 100644 --- a/src/southbridge/amd/sr5650/pcie.c +++ b/src/southbridge/amd/sr5650/pcie.c @@ -224,7 +224,7 @@ static void switching_gpp3a_configurations(device_t nb_dev, device_t sb_dev) reg |= 0xFF0BAA0; break; default: /* shouldn't be here. */ - printk(BIOS_DEBUG, "Warning:gpp3a_configuration is not correct. Check you devicetree.cb\n"); + printk(BIOS_DEBUG, "Warning:gpp3a_configuration is not correct. Check your devicetree.cb\n"); break; } nbmisc_write_index(nb_dev, 0x26, reg); @@ -695,10 +695,53 @@ void sr5650_gpp_sb_init(device_t nb_dev, device_t dev, u32 port) /* check port enable */ if (cfg->port_enable & (1 << port)) { - PcieReleasePortTraining(nb_dev, dev, port); + uint32_t hw_port = port; + switch (cfg->gpp3a_configuration) { + case 0x1: /* 4:2:0:0:0:0 */ + if (hw_port == 9) + hw_port = 4 + 1; + break; + case 0x2: /* 4:1:1:0:0:0 */ + if (hw_port == 9) + hw_port = 4 + 1; + else if (hw_port == 10) + hw_port = 4 + 2; + break; + case 0xc: /* 2:2:2:0:0:0 */ + if (hw_port == 6) + hw_port = 4 + 1; + else if (hw_port == 9) + hw_port = 4 + 2; + break; + case 0xa: /* 2:2:1:1:0:0 */ + if (hw_port == 6) + hw_port = 4 + 1; + else if (hw_port == 9) + hw_port = 4 + 2; + else if (hw_port == 10) + hw_port = 4 + 3; + break; + case 0x4: /* 2:1:1:1:1:0 */ + if (hw_port == 6) + hw_port = 4 + 1; + else if (hw_port == 7) + hw_port = 4 + 2; + else if (hw_port == 9) + hw_port = 4 + 3; + else if (hw_port == 10) + hw_port = 4 + 4; + break; + case 0xb: /* 1:1:1:1:1:1 */ + break; + default: /* shouldn't be here. */ + printk(BIOS_WARNING, "invalid gpp3a_configuration\n"); + return; + } + PcieReleasePortTraining(nb_dev, dev, hw_port); if (!(AtiPcieCfg.Config & PCIE_GPP_COMPLIANCE)) { - u8 res = PcieTrainPort(nb_dev, dev, port); - printk(BIOS_DEBUG, "PcieTrainPort port=0x%x result=%d\n", port, res); + u8 res = PcieTrainPort(nb_dev, dev, hw_port); + printk(BIOS_DEBUG, "PcieTrainPort port=0x%x hw_port=0x%x result=%d\n", + port, hw_port, res); if (res) { AtiPcieCfg.PortDetect |= 1 << port; } |