diff options
Diffstat (limited to 'target/linux/generic/backport-5.15/729-18-v6.3-net-ethernet-mtk_eth_soc-introduce-mtk_hw_reset-util.patch')
| -rw-r--r-- | target/linux/generic/backport-5.15/729-18-v6.3-net-ethernet-mtk_eth_soc-introduce-mtk_hw_reset-util.patch | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/target/linux/generic/backport-5.15/729-18-v6.3-net-ethernet-mtk_eth_soc-introduce-mtk_hw_reset-util.patch b/target/linux/generic/backport-5.15/729-18-v6.3-net-ethernet-mtk_eth_soc-introduce-mtk_hw_reset-util.patch new file mode 100644 index 0000000000..f5e9dddd42 --- /dev/null +++ b/target/linux/generic/backport-5.15/729-18-v6.3-net-ethernet-mtk_eth_soc-introduce-mtk_hw_reset-util.patch @@ -0,0 +1,70 @@ +From: Lorenzo Bianconi <lorenzo@kernel.org> +Date: Sat, 14 Jan 2023 18:01:28 +0100 +Subject: [PATCH] net: ethernet: mtk_eth_soc: introduce mtk_hw_reset utility + routine + +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> +Signed-off-by: Paolo Abeni <pabeni@redhat.com> +--- + +--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c ++++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c +@@ -3199,6 +3199,27 @@ static void mtk_set_mcr_max_rx(struct mt + 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 | +@@ -3238,22 +3259,9 @@ static int mtk_hw_init(struct mtk_eth *e + 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); |