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[v4,net-next,1/5] net: ethernet: mtk_eth_soc: introduce mtk_hw_reset utility routine

Message ID d2d3bba0d3eae38a227a7044bb4446ada5cce30d.1673372414.git.lorenzo@kernel.org (mailing list archive)
State Superseded
Delegated to: Netdev Maintainers
Headers show
Series net: ethernet: mtk_wed: introduce reset support | expand

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Context Check Description
netdev/tree_selection success Clearly marked for net-next
netdev/fixes_present success Fixes tag not required for -next series
netdev/subject_prefix success Link
netdev/cover_letter success Series has a cover letter
netdev/patch_count success Link
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 7 this patch: 7
netdev/cc_maintainers warning 3 maintainers not CCed: matthias.bgg@gmail.com linux-arm-kernel@lists.infradead.org linux-mediatek@lists.infradead.org
netdev/build_clang success Errors and warnings before: 0 this patch: 0
netdev/module_param success Was 0 now: 0
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 7 this patch: 7
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 50 lines checked
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Lorenzo Bianconi Jan. 10, 2023, 5:49 p.m. UTC 
This is a preliminary patch to add Wireless Ethernet Dispatcher reset
support.

Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Tested-by: Daniel Golle <daniel@makrotopia.org>
Co-developed-by: Sujuan Chen <sujuan.chen@mediatek.com>
Signed-off-by: Sujuan Chen <sujuan.chen@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
---
 drivers/net/ethernet/mediatek/mtk_eth_soc.c | 36 +++++++++++++--------
 1 file changed, 22 insertions(+), 14 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
index e3de9a53b2d9..ce429deea389 100644
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -3471,6 +3471,27 @@  static void mtk_set_mcr_max_rx(struct mtk_mac *mac, u32 val)
 		mtk_w32(mac->hw, mcr_new, MTK_MAC_MCR(mac->id));
 }
 
+static void mtk_hw_reset(struct mtk_eth *eth)
+{
+	u32 val;
+
+	if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V2)) {
+		regmap_write(eth->ethsys, ETHSYS_FE_RST_CHK_IDLE_EN, 0);
+		val = RSTCTRL_PPE0_V2;
+	} else {
+		val = RSTCTRL_PPE0;
+	}
+
+	if (MTK_HAS_CAPS(eth->soc->caps, MTK_RSTCTRL_PPE1))
+		val |= RSTCTRL_PPE1;
+
+	ethsys_reset(eth, RSTCTRL_ETH | RSTCTRL_FE | val);
+
+	if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V2))
+		regmap_write(eth->ethsys, ETHSYS_FE_RST_CHK_IDLE_EN,
+			     0x3ffffff);
+}
+
 static int mtk_hw_init(struct mtk_eth *eth)
 {
 	u32 dma_mask = ETHSYS_DMA_AG_MAP_PDMA | ETHSYS_DMA_AG_MAP_QDMA |
@@ -3510,22 +3531,9 @@  static int mtk_hw_init(struct mtk_eth *eth)
 		return 0;
 	}
 
-	if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V2)) {
-		regmap_write(eth->ethsys, ETHSYS_FE_RST_CHK_IDLE_EN, 0);
-		val = RSTCTRL_PPE0_V2;
-	} else {
-		val = RSTCTRL_PPE0;
-	}
-
-	if (MTK_HAS_CAPS(eth->soc->caps, MTK_RSTCTRL_PPE1))
-		val |= RSTCTRL_PPE1;
-
-	ethsys_reset(eth, RSTCTRL_ETH | RSTCTRL_FE | val);
+	mtk_hw_reset(eth);
 
 	if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V2)) {
-		regmap_write(eth->ethsys, ETHSYS_FE_RST_CHK_IDLE_EN,
-			     0x3ffffff);
-
 		/* Set FE to PDMAv2 if necessary */
 		val = mtk_r32(eth, MTK_FE_GLO_MISC);
 		mtk_w32(eth,  val | BIT(4), MTK_FE_GLO_MISC);