nvlink: t19x: Remove 25GBPS speed support

Based on A01 Silicon Characterization, we cannot meet Nvlink POR speeds
of 25G across 100% bin and hence 25GBPS is defeatured.

Bug 200425755
Bug 2083356

Change-Id: Ia2166370413571787040e57ade299e3c136f4d5e
Signed-off-by: Seema Khowala <seemaj@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1775462
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

2 files changed, 0 insertions, 29 deletions

diff --git a/drivers/nvlink/t19x-nvlink-endpt-debugfs.c b/drivers/nvlink/t19x-nvlink-endpt-debugfs.c
index a756745dc..c05865838 100644
--- a/drivers/nvlink/t19x-nvlink-endpt-debugfs.c
+++ b/drivers/nvlink/t19x-nvlink-endpt-debugfs.c
@@ -113,9 +113,6 @@ static ssize_t nvlink_speedcontrol_file_read(struct file *file,
         case NVLINK_SPEED_20:
                 strcpy(buf, "20");
                 break;
-        case NVLINK_SPEED_25:
-                strcpy(buf, "25");
-                break;
         default:
                 nvlink_err("Unsupported ndev speed!");
                 strcpy(buf, "-1");
@@ -148,8 +145,6 @@ static ssize_t nvlink_speedcontrol_file_write(struct file *file,
 
         if (!strncmp(tmp, "20", 2))
                 ndev->speed = NVLINK_SPEED_20;
-        else if (!strncmp(tmp, "25", 2))
-                ndev->speed = NVLINK_SPEED_25;
         else if (!strncmp(tmp, "16", 2))
                 ndev->speed = NVLINK_SPEED_16;
         else {
diff --git a/drivers/nvlink/t19x-nvlink-endpt-minion.c b/drivers/nvlink/t19x-nvlink-endpt-minion.c
index 3741a606c..2b7c8cfdf 100644
--- a/drivers/nvlink/t19x-nvlink-endpt-minion.c
+++ b/drivers/nvlink/t19x-nvlink-endpt-minion.c
@@ -781,19 +781,6 @@ int init_nvhs_phy(struct tnvlink_dev *tdev)
                  */
                 dump_minion = false;
                 goto fail;
-        }
-
-        if ((tdev->refclk == NVLINK_REFCLK_150) &&
-                 (ndev->speed == NVLINK_SPEED_25)) {
-                ret = minion_send_cmd(tdev,
-                                MINION_NVLINK_DL_CMD_COMMAND_INITPLL_3,
-                                0);
-                if (ret < 0) {
-                        nvlink_err("Error sending INITPLL_3 command to MINION");
-                        goto fail;
-                }
-
-                ndev->link_bitrate = LINK_BITRATE_150MHZ_25GBPS;
         } else if ((tdev->refclk == NVLINK_REFCLK_150) &&
                         (ndev->speed == NVLINK_SPEED_20)) {
                 ret = minion_send_cmd(tdev,
@@ -828,17 +815,6 @@ int init_nvhs_phy(struct tnvlink_dev *tdev)
 
                 ndev->link_bitrate = LINK_BITRATE_156MHZ_20GBPS;
         } else if ((tdev->refclk == NVLINK_REFCLK_156) &&
-                         (ndev->speed == NVLINK_SPEED_25)) {
-                ret = minion_send_cmd(tdev,
-                                MINION_NVLINK_DL_CMD_COMMAND_INITPLL_2,
-                                0);
-                if (ret < 0) {
-                        nvlink_err("Error sending INITPLL_2 command to MINION");
-                        goto fail;
-                }
-
-                ndev->link_bitrate = LINK_BITRATE_156MHZ_25GBPS;
-        } else if ((tdev->refclk == NVLINK_REFCLK_156) &&
                          (ndev->speed == NVLINK_SPEED_16)) {
                 ret = minion_send_cmd(tdev,
                                 MINION_NVLINK_DL_CMD_COMMAND_INITPLL_8,