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authorTimothy Pearson <tpearson@raptorengineeringinc.com>2015-06-12 19:43:38 -0500
committerPatrick Georgi <pgeorgi@google.com>2015-10-23 20:02:52 +0200
commit4cde9784e01b6024e90c4fe5f1966d91e153707c (patch)
tree93f56cca8ddbfda181a431fcbc75cfdb889c0ad6
parenta690a78cdacf83badeac6fd62c0ea7033b7c789c (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)
-rw-r--r--src/southbridge/amd/sr5650/pcie.c51
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;
}