[linux-yocto] [PATCH 13/15] drivers/misc: Update the Axxia PEI Driver

[Daniel Dragomir]

From: John Jacques <john.jacq...@intel.com>

Support undocumented PEI configurations.

Signed-off-by: John Jacques <john.jacq...@intel.com>
---
 drivers/misc/axxia-pei.c | 56 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 56 insertions(+)

diff --git a/drivers/misc/axxia-pei.c b/drivers/misc/axxia-pei.c
index 6a6edc1..565992c 100644
--- a/drivers/misc/axxia-pei.c
+++ b/drivers/misc/axxia-pei.c
@@ -1512,6 +1512,62 @@ pei_setup_56xx(unsigned int control)
                pr_debug("Done\n");
                break;
 
+       case 15:
+               /*
+                 This configuration is not documented, but is used.
+
+                 UNUSED  (HSS10-ch0,1)
+                 SRIO0x2 (HSS11-ch0,1)
+                 PEI1x4  (HSS12-ch0,1; HSS13-ch0,1)
+               */
+
+               set_sw_port_config0(pc0_SRIO1x2_SRIO0x2);
+               set_sw_port_config1(pc1_PEI1x4);
+               set_pipe_port_sel(pp_0_1_2_3);
+
+               if (pei1_mode) {
+                       release_reset(2);
+                       release_reset(3);
+               }
+
+               /* Enable PEI1 */
+               ncr_read32(NCP_REGION_ID(0x115, 0), 0, &reg_val);
+               reg_val |= (pei1_mode << 1);
+               ncr_write32(NCP_REGION_ID(0x115, 0), 0, reg_val);
+
+               set_srio_mode(SRIO0, srio0_ctrl);
+               set_srio_speed(SRIO0, srio0_speed);
+               if (srio0_mode) {
+                       pr_debug("Set up sRIO0 -- %d\n", srio0_speed);
+                       setup_srio_mode(SRIO0, srio0_speed);
+                       if (release_srio_reset(SRIO0, srio0_speed))
+                               srio0_mode = 0;
+               }
+               pr_debug("Enabling sRIO .");
+               /* Power up TX/RX lanes */
+               if (srio0_mode && powerup_srio_lanes(SRIO0, P1))
+                       srio0_mode = 0;
+
+               pr_debug(".");
+               /* Set TX clock ready */
+               if (srio0_mode)
+                       set_tx_clk_ready();
+
+               /* Power up TX/RX lanes */
+               if (srio0_mode && powerup_srio_lanes(SRIO0, P0))
+                       srio0_mode = 0;
+               pr_debug(".");
+
+               if (srio0_mode)
+                       enable_srio_lanes(SRIO0);
+               pr_debug(".");
+               /* Enable SRIO0/SRIO1 */
+               ncr_read32(NCP_REGION_ID(0x115, 0), 0, &reg_val);
+               reg_val |= (srio0_mode << 3);
+               ncr_write32(NCP_REGION_ID(0x115, 0), 0, reg_val);
+               pr_debug("Done\n");
+               break;
+
        default:
                pr_err("axxia_pei: invalid PCI/SRIO config\n");
                pr_err("pei_setup control=0x%08x pci_srio_sata_mode=%d\n",
-- 
2.7.4

-- 
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