[PATCH 5.15 465/913] iwlwifi: yoyo: remove DBGI_SRAM address reset writing
From: Greg Kroah-Hartman
Date: Tue Apr 05 2022 - 17:15:21 EST
From: Rotem Saado <rotem.saado@xxxxxxxxx>
[ Upstream commit ce014c9861544bb4e789323d0d8956a5ad262e25 ]
Due to preg protection we cannot write to this register
while FW is running (when FW in Halt it is ok).
since we have some cases that we need to dump this
region while FW is running remove this writing from DRV.
FW will do this writing.
Signed-off-by: Rotem Saado <rotem.saado@xxxxxxxxx>
Fixes: 89639e06d0f3 ("iwlwifi: yoyo: support for new DBGI_SRAM region")
Signed-off-by: Luca Coelho <luciano.coelho@xxxxxxxxx>
Link: https://lore.kernel.org/r/iwlwifi.20220129105618.209f3078bc74.I463530bd2f40daedb39f6d9df987bb7cee209033@changeid
Signed-off-by: Luca Coelho <luciano.coelho@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/net/wireless/intel/iwlwifi/fw/dbg.c | 2 --
drivers/net/wireless/intel/iwlwifi/iwl-prph.h | 2 --
2 files changed, 4 deletions(-)
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/dbg.c b/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
index 6dcafd0a3d4b..b00cf92c8965 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
+++ b/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
@@ -1532,8 +1532,6 @@ iwl_dump_ini_dbgi_sram_iter(struct iwl_fw_runtime *fwrt,
return -EBUSY;
range->range_data_size = reg->dev_addr.size;
- iwl_write_prph_no_grab(fwrt->trans, DBGI_SRAM_TARGET_ACCESS_CFG,
- DBGI_SRAM_TARGET_ACCESS_CFG_RESET_ADDRESS_MSK);
for (i = 0; i < (le32_to_cpu(reg->dev_addr.size) / 4); i++) {
prph_data = iwl_read_prph(fwrt->trans, (i % 2) ?
DBGI_SRAM_TARGET_ACCESS_RDATA_MSB :
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-prph.h b/drivers/net/wireless/intel/iwlwifi/iwl-prph.h
index d0a7d58336a9..6c4f1c949541 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-prph.h
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-prph.h
@@ -350,8 +350,6 @@
#define WFPM_GP2 0xA030B4
/* DBGI SRAM Register details */
-#define DBGI_SRAM_TARGET_ACCESS_CFG 0x00A2E14C
-#define DBGI_SRAM_TARGET_ACCESS_CFG_RESET_ADDRESS_MSK 0x10000
#define DBGI_SRAM_TARGET_ACCESS_RDATA_LSB 0x00A2E154
#define DBGI_SRAM_TARGET_ACCESS_RDATA_MSB 0x00A2E158
--
2.34.1