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raw | patch | inline | side by side (parent: e0ed665)
raw | patch | inline | side by side (parent: e0ed665)
author | Vineet Roy <a0131726@ti.com> | |
Thu, 17 Dec 2020 07:41:59 +0000 (13:11 +0530) | ||
committer | Sujith Shivalingappa <sujith.s@ti.com> | |
Fri, 18 Dec 2020 15:31:15 +0000 (09:31 -0600) |
1. During high traffic when links are taken down, Tx PRU locks up
2. Fix is to check Tx FIFO fill level and then issue a reset
2. Fix is to check Tx FIFO fill level and then issue a reset
packages/ti/drv/icss_emac/firmware/icss_dualemac/src/emac_MII_Xmt.asm | patch | blob | history |
diff --git a/packages/ti/drv/icss_emac/firmware/icss_dualemac/src/emac_MII_Xmt.asm b/packages/ti/drv/icss_emac/firmware/icss_dualemac/src/emac_MII_Xmt.asm
index e7070bc2dc382a3b3cc9c6cc03bc49bf520b5927..0d3bd0941116329aa8d9b6ce5a48f11dffea1a32 100644 (file)
; Don't allow insertion of next packet in TX Fifo unless it is empty
CLR R22 , R22 , PACKET_TX_ALLOWED
CLR R22 , R22 , Entire_Tx_Data_Not_Pushed
+
+ ;fix for issue where Tx FIFO goes into overflow and locks up
+ ;when cable is removed during high traffic scenario
+
+ ;Detect FIFO overflow and reset
+ .if $defined("ICSS_REV1")
+ M_XMT_FILL_LEVEL_CALC_ICSS_REV1 ;calculates Fill level and resets in case of underflow/overflow
+ .endif
+ .if $defined("ICSS_REV2")
+ M_XMT_FILL_LEVEL_CALC_ICSS_REV2 ;calculates Fill level and resets in case of underflow/overflow
+ .endif
xmt_save_context: