diff mbox series

[net,v3] net: stmmac: dwmac4: Fix high address display by updating reg_space[] from register values

Message ID 20241021054625.1791965-1-leyfoon.tan@starfivetech.com (mailing list archive)
State New
Delegated to: Netdev Maintainers
Headers show
Series [net,v3] net: stmmac: dwmac4: Fix high address display by updating reg_space[] from register values | expand

Checks

Context Check Description
netdev/series_format success Single patches do not need cover letters
netdev/tree_selection success Clearly marked for net
netdev/ynl success Generated files up to date; no warnings/errors; no diff in generated;
netdev/fixes_present success Fixes tag present in non-next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 5 this patch: 5
netdev/build_tools success No tools touched, skip
netdev/cc_maintainers fail 2 blamed authors not CCed: clabbe.montjoie@gmail.com peppe.cavallaro@st.com; 6 maintainers not CCed: mcoquelin.stm32@gmail.com linux-arm-kernel@lists.infradead.org andrew+netdev@lunn.ch peppe.cavallaro@st.com linux-stm32@st-md-mailman.stormreply.com clabbe.montjoie@gmail.com
netdev/build_clang success Errors and warnings before: 3 this patch: 3
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success Fixes tag looks correct
netdev/build_allmodconfig_warn success Errors and warnings before: 4 this patch: 4
netdev/checkpatch warning WARNING: line length of 83 exceeds 80 columns WARNING: line length of 86 exceeds 80 columns
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0
netdev/contest success net-next-2024-10-22--00-00 (tests: 765)

Commit Message

Ley Foon Tan Oct. 21, 2024, 5:46 a.m. UTC 
The high address will display as 0 if the driver does not set the
reg_space[]. To fix this, read the high address registers and
update the reg_space[] accordingly.

Fixes: fbf68229ffe7 ("net: stmmac: unify registers dumps methods")
Signed-off-by: Ley Foon Tan <leyfoon.tan@starfivetech.com>
---
- Split the patch series to net and net-next. Submit this patch for net.
- Rebased to net https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git

v2: https://patchwork.kernel.org/project/netdevbpf/cover/20241016031832.3701260-1-leyfoon.tan@starfivetech.com/
---
 drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.c | 8 ++++++++
 drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.h | 2 ++
 2 files changed, 10 insertions(+)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.c b/drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.c
index e0165358c4ac..77b35abc6f6f 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.c
@@ -203,8 +203,12 @@  static void _dwmac4_dump_dma_regs(struct stmmac_priv *priv,
 		readl(ioaddr + DMA_CHAN_TX_CONTROL(dwmac4_addrs, channel));
 	reg_space[DMA_CHAN_RX_CONTROL(default_addrs, channel) / 4] =
 		readl(ioaddr + DMA_CHAN_RX_CONTROL(dwmac4_addrs, channel));
+	reg_space[DMA_CHAN_TX_BASE_ADDR_HI(default_addrs, channel) / 4] =
+		readl(ioaddr + DMA_CHAN_TX_BASE_ADDR_HI(dwmac4_addrs, channel));
 	reg_space[DMA_CHAN_TX_BASE_ADDR(default_addrs, channel) / 4] =
 		readl(ioaddr + DMA_CHAN_TX_BASE_ADDR(dwmac4_addrs, channel));
+	reg_space[DMA_CHAN_RX_BASE_ADDR_HI(default_addrs, channel) / 4] =
+		readl(ioaddr + DMA_CHAN_RX_BASE_ADDR_HI(dwmac4_addrs, channel));
 	reg_space[DMA_CHAN_RX_BASE_ADDR(default_addrs, channel) / 4] =
 		readl(ioaddr + DMA_CHAN_RX_BASE_ADDR(dwmac4_addrs, channel));
 	reg_space[DMA_CHAN_TX_END_ADDR(default_addrs, channel) / 4] =
@@ -225,8 +229,12 @@  static void _dwmac4_dump_dma_regs(struct stmmac_priv *priv,
 		readl(ioaddr + DMA_CHAN_CUR_TX_DESC(dwmac4_addrs, channel));
 	reg_space[DMA_CHAN_CUR_RX_DESC(default_addrs, channel) / 4] =
 		readl(ioaddr + DMA_CHAN_CUR_RX_DESC(dwmac4_addrs, channel));
+	reg_space[DMA_CHAN_CUR_TX_BUF_ADDR_HI(default_addrs, channel) / 4] =
+		readl(ioaddr + DMA_CHAN_CUR_TX_BUF_ADDR_HI(dwmac4_addrs, channel));
 	reg_space[DMA_CHAN_CUR_TX_BUF_ADDR(default_addrs, channel) / 4] =
 		readl(ioaddr + DMA_CHAN_CUR_TX_BUF_ADDR(dwmac4_addrs, channel));
+	reg_space[DMA_CHAN_CUR_RX_BUF_ADDR_HI(default_addrs, channel) / 4] =
+		readl(ioaddr + DMA_CHAN_CUR_RX_BUF_ADDR_HI(dwmac4_addrs, channel));
 	reg_space[DMA_CHAN_CUR_RX_BUF_ADDR(default_addrs, channel) / 4] =
 		readl(ioaddr + DMA_CHAN_CUR_RX_BUF_ADDR(dwmac4_addrs, channel));
 	reg_space[DMA_CHAN_STATUS(default_addrs, channel) / 4] =
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.h b/drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.h
index 17d9120db5fe..4f980dcd3958 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.h
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.h
@@ -127,7 +127,9 @@  static inline u32 dma_chanx_base_addr(const struct dwmac4_addrs *addrs,
 #define DMA_CHAN_SLOT_CTRL_STATUS(addrs, x)	(dma_chanx_base_addr(addrs, x) + 0x3c)
 #define DMA_CHAN_CUR_TX_DESC(addrs, x)	(dma_chanx_base_addr(addrs, x) + 0x44)
 #define DMA_CHAN_CUR_RX_DESC(addrs, x)	(dma_chanx_base_addr(addrs, x) + 0x4c)
+#define DMA_CHAN_CUR_TX_BUF_ADDR_HI(addrs, x)	(dma_chanx_base_addr(addrs, x) + 0x50)
 #define DMA_CHAN_CUR_TX_BUF_ADDR(addrs, x)	(dma_chanx_base_addr(addrs, x) + 0x54)
+#define DMA_CHAN_CUR_RX_BUF_ADDR_HI(addrs, x)	(dma_chanx_base_addr(addrs, x) + 0x58)
 #define DMA_CHAN_CUR_RX_BUF_ADDR(addrs, x)	(dma_chanx_base_addr(addrs, x) + 0x5c)
 #define DMA_CHAN_STATUS(addrs, x)	(dma_chanx_base_addr(addrs, x) + 0x60)