Message-Id: <20240122-topic-qdf_cleanup_net-v1-1-caf0d9c4408a@linaro.org>
Date: Mon, 22 Jan 2024 13:02:22 +0100
From: Konrad Dybcio <konrad.dybcio@...aro.org>
To: Timur Tabi <timur@...nel.org>, "David S. Miller" <davem@...emloft.net>, 
 Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, 
 Paolo Abeni <pabeni@...hat.com>
Cc: Marijn Suijten <marijn.suijten@...ainline.org>, 
 linux-kernel@...r.kernel.org, netdev@...r.kernel.org, 
 Konrad Dybcio <konrad.dybcio@...aro.org>
Subject: [PATCH] net: ethernet: qualcomm: Remove QDF24xx support

This SoC family was destined for server use, featuring Qualcomm's very
interesting Kryo cores (before "Kryo" became a marketing term for Arm
cores with small modifications). It did however not leave the labs of
Qualcomm and presumably some partners, nor was it ever productized.

Remove the related drivers, as they seem to be long obsolete.

Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.org>
---
Compile-tested only
---
 drivers/net/ethernet/qualcomm/emac/Makefile        |   3 +-
 .../ethernet/qualcomm/emac/emac-sgmii-qdf2400.c    | 215 ---------------------
 .../ethernet/qualcomm/emac/emac-sgmii-qdf2432.c    | 202 -------------------
 drivers/net/ethernet/qualcomm/emac/emac-sgmii.c    | 120 ++----------
 drivers/net/ethernet/qualcomm/emac/emac-sgmii.h    |   2 -
 5 files changed, 21 insertions(+), 521 deletions(-)

diff --git a/drivers/net/ethernet/qualcomm/emac/Makefile b/drivers/net/ethernet/qualcomm/emac/Makefile
index 61d15e091be2..ffc00995acb9 100644
--- a/drivers/net/ethernet/qualcomm/emac/Makefile
+++ b/drivers/net/ethernet/qualcomm/emac/Makefile
@@ -6,5 +6,4 @@
 obj-$(CONFIG_QCOM_EMAC) += qcom-emac.o
 
 qcom-emac-objs := emac.o emac-mac.o emac-phy.o emac-sgmii.o emac-ethtool.o \
-		  emac-sgmii-fsm9900.o emac-sgmii-qdf2432.o \
-		  emac-sgmii-qdf2400.o
+		  emac-sgmii-fsm9900.o
diff --git a/drivers/net/ethernet/qualcomm/emac/emac-sgmii-qdf2400.c b/drivers/net/ethernet/qualcomm/emac/emac-sgmii-qdf2400.c
deleted file mode 100644
index b29148ce7e05..000000000000
--- a/drivers/net/ethernet/qualcomm/emac/emac-sgmii-qdf2400.c
+++ /dev/null
@@ -1,215 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/* Copyright (c) 2015-2016, The Linux Foundation. All rights reserved.
- */
-
-/* Qualcomm Technologies, Inc. QDF2400 EMAC SGMII Controller driver.
- */
-
-#include <linux/iopoll.h>
-#include "emac.h"
-
-/* EMAC_SGMII register offsets */
-#define EMAC_SGMII_PHY_TX_PWR_CTRL		0x000C
-#define EMAC_SGMII_PHY_LANE_CTRL1		0x0018
-#define EMAC_SGMII_PHY_CDR_CTRL0		0x0058
-#define EMAC_SGMII_PHY_POW_DWN_CTRL0		0x0080
-#define EMAC_SGMII_PHY_RESET_CTRL		0x00a8
-#define EMAC_SGMII_PHY_INTERRUPT_MASK		0x00b4
-
-/* SGMII digital lane registers */
-#define EMAC_SGMII_LN_DRVR_CTRL0		0x000C
-#define EMAC_SGMII_LN_DRVR_CTRL1		0x0010
-#define EMAC_SGMII_LN_DRVR_TAP_EN		0x0018
-#define EMAC_SGMII_LN_TX_MARGINING		0x001C
-#define EMAC_SGMII_LN_TX_PRE			0x0020
-#define EMAC_SGMII_LN_TX_POST			0x0024
-#define EMAC_SGMII_LN_TX_BAND_MODE		0x0060
-#define EMAC_SGMII_LN_LANE_MODE			0x0064
-#define EMAC_SGMII_LN_PARALLEL_RATE		0x007C
-#define EMAC_SGMII_LN_CML_CTRL_MODE0		0x00C0
-#define EMAC_SGMII_LN_MIXER_CTRL_MODE0		0x00D8
-#define EMAC_SGMII_LN_VGA_INITVAL		0x013C
-#define EMAC_SGMII_LN_UCDR_FO_GAIN_MODE0	0x0184
-#define EMAC_SGMII_LN_UCDR_SO_GAIN_MODE0	0x0190
-#define EMAC_SGMII_LN_UCDR_SO_CONFIG		0x019C
-#define EMAC_SGMII_LN_RX_BAND			0x01A4
-#define EMAC_SGMII_LN_RX_RCVR_PATH1_MODE0	0x01C0
-#define EMAC_SGMII_LN_RSM_CONFIG		0x01F8
-#define EMAC_SGMII_LN_SIGDET_ENABLES		0x0230
-#define EMAC_SGMII_LN_SIGDET_CNTRL		0x0234
-#define EMAC_SGMII_LN_SIGDET_DEGLITCH_CNTRL	0x0238
-#define EMAC_SGMII_LN_RX_EN_SIGNAL		0x02AC
-#define EMAC_SGMII_LN_RX_MISC_CNTRL0		0x02B8
-#define EMAC_SGMII_LN_DRVR_LOGIC_CLKDIV		0x02C8
-#define EMAC_SGMII_LN_RX_RESECODE_OFFSET	0x02CC
-
-/* SGMII digital lane register values */
-#define UCDR_STEP_BY_TWO_MODE0			BIT(7)
-#define UCDR_xO_GAIN_MODE(x)			((x) & 0x7f)
-#define UCDR_ENABLE				BIT(6)
-#define UCDR_SO_SATURATION(x)			((x) & 0x3f)
-
-#define SIGDET_LP_BYP_PS4			BIT(7)
-#define SIGDET_EN_PS0_TO_PS2			BIT(6)
-
-#define TXVAL_VALID_INIT			BIT(4)
-#define KR_PCIGEN3_MODE				BIT(0)
-
-#define MAIN_EN					BIT(0)
-
-#define TX_MARGINING_MUX			BIT(6)
-#define TX_MARGINING(x)				((x) & 0x3f)
-
-#define TX_PRE_MUX				BIT(6)
-
-#define TX_POST_MUX				BIT(6)
-
-#define CML_GEAR_MODE(x)			(((x) & 7) << 3)
-#define CML2CMOS_IBOOST_MODE(x)			((x) & 7)
-
-#define RESCODE_OFFSET(x)			((x) & 0x1f)
-
-#define MIXER_LOADB_MODE(x)			(((x) & 0xf) << 2)
-#define MIXER_DATARATE_MODE(x)			((x) & 3)
-
-#define VGA_THRESH_DFE(x)			((x) & 0x3f)
-
-#define SIGDET_LP_BYP_PS0_TO_PS2		BIT(5)
-#define SIGDET_FLT_BYP				BIT(0)
-
-#define SIGDET_LVL(x)				(((x) & 0xf) << 4)
-
-#define SIGDET_DEGLITCH_CTRL(x)			(((x) & 0xf) << 1)
-
-#define INVERT_PCS_RX_CLK			BIT(7)
-
-#define DRVR_LOGIC_CLK_EN			BIT(4)
-#define DRVR_LOGIC_CLK_DIV(x)			((x) & 0xf)
-
-#define PARALLEL_RATE_MODE0(x)			((x) & 0x3)
-
-#define BAND_MODE0(x)				((x) & 0x3)
-
-#define LANE_MODE(x)				((x) & 0x1f)
-
-#define CDR_PD_SEL_MODE0(x)			(((x) & 0x3) << 5)
-#define EN_DLL_MODE0				BIT(4)
-#define EN_IQ_DCC_MODE0				BIT(3)
-#define EN_IQCAL_MODE0				BIT(2)
-
-#define BYPASS_RSM_SAMP_CAL			BIT(1)
-#define BYPASS_RSM_DLL_CAL			BIT(0)
-
-#define L0_RX_EQUALIZE_ENABLE			BIT(6)
-
-#define PWRDN_B					BIT(0)
-
-#define CDR_MAX_CNT(x)				((x) & 0xff)
-
-#define SERDES_START_WAIT_TIMES			100
-
-struct emac_reg_write {
-	unsigned int offset;
-	u32 val;
-};
-
-static void emac_reg_write_all(void __iomem *base,
-			       const struct emac_reg_write *itr, size_t size)
-{
-	size_t i;
-
-	for (i = 0; i < size; ++itr, ++i)
-		writel(itr->val, base + itr->offset);
-}
-
-static const struct emac_reg_write sgmii_laned[] = {
-	/* CDR Settings */
-	{EMAC_SGMII_LN_UCDR_FO_GAIN_MODE0,
-		UCDR_STEP_BY_TWO_MODE0 | UCDR_xO_GAIN_MODE(10)},
-	{EMAC_SGMII_LN_UCDR_SO_GAIN_MODE0, UCDR_xO_GAIN_MODE(0)},
-	{EMAC_SGMII_LN_UCDR_SO_CONFIG, UCDR_ENABLE | UCDR_SO_SATURATION(12)},
-
-	/* TX/RX Settings */
-	{EMAC_SGMII_LN_RX_EN_SIGNAL, SIGDET_LP_BYP_PS4 | SIGDET_EN_PS0_TO_PS2},
-
-	{EMAC_SGMII_LN_DRVR_CTRL0, TXVAL_VALID_INIT | KR_PCIGEN3_MODE},
-	{EMAC_SGMII_LN_DRVR_TAP_EN, MAIN_EN},
-	{EMAC_SGMII_LN_TX_MARGINING, TX_MARGINING_MUX | TX_MARGINING(25)},
-	{EMAC_SGMII_LN_TX_PRE, TX_PRE_MUX},
-	{EMAC_SGMII_LN_TX_POST, TX_POST_MUX},
-
-	{EMAC_SGMII_LN_CML_CTRL_MODE0,
-		CML_GEAR_MODE(1) | CML2CMOS_IBOOST_MODE(1)},
-	{EMAC_SGMII_LN_MIXER_CTRL_MODE0,
-		MIXER_LOADB_MODE(12) | MIXER_DATARATE_MODE(1)},
-	{EMAC_SGMII_LN_VGA_INITVAL, VGA_THRESH_DFE(31)},
-	{EMAC_SGMII_LN_SIGDET_ENABLES,
-		SIGDET_LP_BYP_PS0_TO_PS2 | SIGDET_FLT_BYP},
-	{EMAC_SGMII_LN_SIGDET_CNTRL, SIGDET_LVL(8)},
-
-	{EMAC_SGMII_LN_SIGDET_DEGLITCH_CNTRL, SIGDET_DEGLITCH_CTRL(4)},
-	{EMAC_SGMII_LN_RX_MISC_CNTRL0, INVERT_PCS_RX_CLK},
-	{EMAC_SGMII_LN_DRVR_LOGIC_CLKDIV,
-		DRVR_LOGIC_CLK_EN | DRVR_LOGIC_CLK_DIV(4)},
-
-	{EMAC_SGMII_LN_PARALLEL_RATE, PARALLEL_RATE_MODE0(1)},
-	{EMAC_SGMII_LN_TX_BAND_MODE, BAND_MODE0(1)},
-	{EMAC_SGMII_LN_RX_BAND, BAND_MODE0(2)},
-	{EMAC_SGMII_LN_DRVR_CTRL1, RESCODE_OFFSET(7)},
-	{EMAC_SGMII_LN_RX_RESECODE_OFFSET, RESCODE_OFFSET(9)},
-	{EMAC_SGMII_LN_LANE_MODE, LANE_MODE(26)},
-	{EMAC_SGMII_LN_RX_RCVR_PATH1_MODE0, CDR_PD_SEL_MODE0(2) |
-		EN_DLL_MODE0 | EN_IQ_DCC_MODE0 | EN_IQCAL_MODE0},
-	{EMAC_SGMII_LN_RSM_CONFIG, BYPASS_RSM_SAMP_CAL | BYPASS_RSM_DLL_CAL},
-};
-
-static const struct emac_reg_write physical_coding_sublayer_programming[] = {
-	{EMAC_SGMII_PHY_POW_DWN_CTRL0, PWRDN_B},
-	{EMAC_SGMII_PHY_CDR_CTRL0, CDR_MAX_CNT(15)},
-	{EMAC_SGMII_PHY_TX_PWR_CTRL, 0},
-	{EMAC_SGMII_PHY_LANE_CTRL1, L0_RX_EQUALIZE_ENABLE},
-};
-
-int emac_sgmii_init_qdf2400(struct emac_adapter *adpt)
-{
-	struct emac_sgmii *phy = &adpt->phy;
-	void __iomem *phy_regs = phy->base;
-	void __iomem *laned = phy->digital;
-	unsigned int i;
-	u32 lnstatus;
-
-	/* PCS lane-x init */
-	emac_reg_write_all(phy->base, physical_coding_sublayer_programming,
-			   ARRAY_SIZE(physical_coding_sublayer_programming));
-
-	/* SGMII lane-x init */
-	emac_reg_write_all(phy->digital, sgmii_laned, ARRAY_SIZE(sgmii_laned));
-
-	/* Power up PCS and start reset lane state machine */
-
-	writel(0, phy_regs + EMAC_SGMII_PHY_RESET_CTRL);
-	writel(1, laned + SGMII_LN_RSM_START);
-
-	/* Wait for c_ready assertion */
-	for (i = 0; i < SERDES_START_WAIT_TIMES; i++) {
-		lnstatus = readl(phy_regs + SGMII_PHY_LN_LANE_STATUS);
-		if (lnstatus & BIT(1))
-			break;
-		usleep_range(100, 200);
-	}
-
-	if (i == SERDES_START_WAIT_TIMES) {
-		netdev_err(adpt->netdev, "SGMII failed to start\n");
-		return -EIO;
-	}
-
-	/* Disable digital and SERDES loopback */
-	writel(0, phy_regs + SGMII_PHY_LN_BIST_GEN0);
-	writel(0, phy_regs + SGMII_PHY_LN_BIST_GEN2);
-	writel(0, phy_regs + SGMII_PHY_LN_CDR_CTRL1);
-
-	/* Mask out all the SGMII Interrupt */
-	writel(0, phy_regs + EMAC_SGMII_PHY_INTERRUPT_MASK);
-
-	return 0;
-}
diff --git a/drivers/net/ethernet/qualcomm/emac/emac-sgmii-qdf2432.c b/drivers/net/ethernet/qualcomm/emac/emac-sgmii-qdf2432.c
deleted file mode 100644
index 65519eeebecd..000000000000
--- a/drivers/net/ethernet/qualcomm/emac/emac-sgmii-qdf2432.c
+++ /dev/null
@@ -1,202 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/* Copyright (c) 2015-2016, The Linux Foundation. All rights reserved.
- */
-
-/* Qualcomm Technologies, Inc. QDF2432 EMAC SGMII Controller driver.
- */
-
-#include <linux/iopoll.h>
-#include "emac.h"
-
-/* EMAC_SGMII register offsets */
-#define EMAC_SGMII_PHY_TX_PWR_CTRL		0x000C
-#define EMAC_SGMII_PHY_LANE_CTRL1		0x0018
-#define EMAC_SGMII_PHY_CDR_CTRL0		0x0058
-#define EMAC_SGMII_PHY_POW_DWN_CTRL0		0x0080
-#define EMAC_SGMII_PHY_RESET_CTRL		0x00a8
-#define EMAC_SGMII_PHY_INTERRUPT_MASK		0x00b4
-
-/* SGMII digital lane registers */
-#define EMAC_SGMII_LN_DRVR_CTRL0		0x000C
-#define EMAC_SGMII_LN_DRVR_TAP_EN		0x0018
-#define EMAC_SGMII_LN_TX_MARGINING		0x001C
-#define EMAC_SGMII_LN_TX_PRE			0x0020
-#define EMAC_SGMII_LN_TX_POST			0x0024
-#define EMAC_SGMII_LN_TX_BAND_MODE		0x0060
-#define EMAC_SGMII_LN_LANE_MODE			0x0064
-#define EMAC_SGMII_LN_PARALLEL_RATE		0x0078
-#define EMAC_SGMII_LN_CML_CTRL_MODE0		0x00B8
-#define EMAC_SGMII_LN_MIXER_CTRL_MODE0		0x00D0
-#define EMAC_SGMII_LN_VGA_INITVAL		0x0134
-#define EMAC_SGMII_LN_UCDR_FO_GAIN_MODE0	0x017C
-#define EMAC_SGMII_LN_UCDR_SO_GAIN_MODE0	0x0188
-#define EMAC_SGMII_LN_UCDR_SO_CONFIG		0x0194
-#define EMAC_SGMII_LN_RX_BAND			0x019C
-#define EMAC_SGMII_LN_RX_RCVR_PATH1_MODE0	0x01B8
-#define EMAC_SGMII_LN_RSM_CONFIG		0x01F0
-#define EMAC_SGMII_LN_SIGDET_ENABLES		0x0224
-#define EMAC_SGMII_LN_SIGDET_CNTRL		0x0228
-#define EMAC_SGMII_LN_SIGDET_DEGLITCH_CNTRL	0x022C
-#define EMAC_SGMII_LN_RX_EN_SIGNAL		0x02A0
-#define EMAC_SGMII_LN_RX_MISC_CNTRL0		0x02AC
-#define EMAC_SGMII_LN_DRVR_LOGIC_CLKDIV		0x02BC
-
-/* SGMII digital lane register values */
-#define UCDR_STEP_BY_TWO_MODE0			BIT(7)
-#define UCDR_xO_GAIN_MODE(x)			((x) & 0x7f)
-#define UCDR_ENABLE				BIT(6)
-#define UCDR_SO_SATURATION(x)			((x) & 0x3f)
-
-#define SIGDET_LP_BYP_PS4			BIT(7)
-#define SIGDET_EN_PS0_TO_PS2			BIT(6)
-
-#define TXVAL_VALID_INIT			BIT(4)
-#define KR_PCIGEN3_MODE				BIT(0)
-
-#define MAIN_EN					BIT(0)
-
-#define TX_MARGINING_MUX			BIT(6)
-#define TX_MARGINING(x)				((x) & 0x3f)
-
-#define TX_PRE_MUX				BIT(6)
-
-#define TX_POST_MUX				BIT(6)
-
-#define CML_GEAR_MODE(x)			(((x) & 7) << 3)
-#define CML2CMOS_IBOOST_MODE(x)			((x) & 7)
-
-#define MIXER_LOADB_MODE(x)			(((x) & 0xf) << 2)
-#define MIXER_DATARATE_MODE(x)			((x) & 3)
-
-#define VGA_THRESH_DFE(x)			((x) & 0x3f)
-
-#define SIGDET_LP_BYP_PS0_TO_PS2		BIT(5)
-#define SIGDET_FLT_BYP				BIT(0)
-
-#define SIGDET_LVL(x)				(((x) & 0xf) << 4)
-
-#define SIGDET_DEGLITCH_CTRL(x)			(((x) & 0xf) << 1)
-
-#define DRVR_LOGIC_CLK_EN			BIT(4)
-#define DRVR_LOGIC_CLK_DIV(x)			((x) & 0xf)
-
-#define PARALLEL_RATE_MODE0(x)			((x) & 0x3)
-
-#define BAND_MODE0(x)				((x) & 0x3)
-
-#define LANE_MODE(x)				((x) & 0x1f)
-
-#define CDR_PD_SEL_MODE0(x)			(((x) & 0x3) << 5)
-#define BYPASS_RSM_SAMP_CAL			BIT(1)
-#define BYPASS_RSM_DLL_CAL			BIT(0)
-
-#define L0_RX_EQUALIZE_ENABLE			BIT(6)
-
-#define PWRDN_B					BIT(0)
-
-#define CDR_MAX_CNT(x)				((x) & 0xff)
-
-#define SERDES_START_WAIT_TIMES			100
-
-struct emac_reg_write {
-	unsigned int offset;
-	u32 val;
-};
-
-static void emac_reg_write_all(void __iomem *base,
-			       const struct emac_reg_write *itr, size_t size)
-{
-	size_t i;
-
-	for (i = 0; i < size; ++itr, ++i)
-		writel(itr->val, base + itr->offset);
-}
-
-static const struct emac_reg_write sgmii_laned[] = {
-	/* CDR Settings */
-	{EMAC_SGMII_LN_UCDR_FO_GAIN_MODE0,
-		UCDR_STEP_BY_TWO_MODE0 | UCDR_xO_GAIN_MODE(10)},
-	{EMAC_SGMII_LN_UCDR_SO_GAIN_MODE0, UCDR_xO_GAIN_MODE(0)},
-	{EMAC_SGMII_LN_UCDR_SO_CONFIG, UCDR_ENABLE | UCDR_SO_SATURATION(12)},
-
-	/* TX/RX Settings */
-	{EMAC_SGMII_LN_RX_EN_SIGNAL, SIGDET_LP_BYP_PS4 | SIGDET_EN_PS0_TO_PS2},
-
-	{EMAC_SGMII_LN_DRVR_CTRL0, TXVAL_VALID_INIT | KR_PCIGEN3_MODE},
-	{EMAC_SGMII_LN_DRVR_TAP_EN, MAIN_EN},
-	{EMAC_SGMII_LN_TX_MARGINING, TX_MARGINING_MUX | TX_MARGINING(25)},
-	{EMAC_SGMII_LN_TX_PRE, TX_PRE_MUX},
-	{EMAC_SGMII_LN_TX_POST, TX_POST_MUX},
-
-	{EMAC_SGMII_LN_CML_CTRL_MODE0,
-		CML_GEAR_MODE(1) | CML2CMOS_IBOOST_MODE(1)},
-	{EMAC_SGMII_LN_MIXER_CTRL_MODE0,
-		MIXER_LOADB_MODE(12) | MIXER_DATARATE_MODE(1)},
-	{EMAC_SGMII_LN_VGA_INITVAL, VGA_THRESH_DFE(31)},
-	{EMAC_SGMII_LN_SIGDET_ENABLES,
-		SIGDET_LP_BYP_PS0_TO_PS2 | SIGDET_FLT_BYP},
-	{EMAC_SGMII_LN_SIGDET_CNTRL, SIGDET_LVL(8)},
-
-	{EMAC_SGMII_LN_SIGDET_DEGLITCH_CNTRL, SIGDET_DEGLITCH_CTRL(4)},
-	{EMAC_SGMII_LN_RX_MISC_CNTRL0, 0},
-	{EMAC_SGMII_LN_DRVR_LOGIC_CLKDIV,
-		DRVR_LOGIC_CLK_EN | DRVR_LOGIC_CLK_DIV(4)},
-
-	{EMAC_SGMII_LN_PARALLEL_RATE, PARALLEL_RATE_MODE0(1)},
-	{EMAC_SGMII_LN_TX_BAND_MODE, BAND_MODE0(2)},
-	{EMAC_SGMII_LN_RX_BAND, BAND_MODE0(3)},
-	{EMAC_SGMII_LN_LANE_MODE, LANE_MODE(26)},
-	{EMAC_SGMII_LN_RX_RCVR_PATH1_MODE0, CDR_PD_SEL_MODE0(3)},
-	{EMAC_SGMII_LN_RSM_CONFIG, BYPASS_RSM_SAMP_CAL | BYPASS_RSM_DLL_CAL},
-};
-
-static const struct emac_reg_write physical_coding_sublayer_programming[] = {
-	{EMAC_SGMII_PHY_POW_DWN_CTRL0, PWRDN_B},
-	{EMAC_SGMII_PHY_CDR_CTRL0, CDR_MAX_CNT(15)},
-	{EMAC_SGMII_PHY_TX_PWR_CTRL, 0},
-	{EMAC_SGMII_PHY_LANE_CTRL1, L0_RX_EQUALIZE_ENABLE},
-};
-
-int emac_sgmii_init_qdf2432(struct emac_adapter *adpt)
-{
-	struct emac_sgmii *phy = &adpt->phy;
-	void __iomem *phy_regs = phy->base;
-	void __iomem *laned = phy->digital;
-	unsigned int i;
-	u32 lnstatus;
-
-	/* PCS lane-x init */
-	emac_reg_write_all(phy->base, physical_coding_sublayer_programming,
-			   ARRAY_SIZE(physical_coding_sublayer_programming));
-
-	/* SGMII lane-x init */
-	emac_reg_write_all(phy->digital, sgmii_laned, ARRAY_SIZE(sgmii_laned));
-
-	/* Power up PCS and start reset lane state machine */
-
-	writel(0, phy_regs + EMAC_SGMII_PHY_RESET_CTRL);
-	writel(1, laned + SGMII_LN_RSM_START);
-
-	/* Wait for c_ready assertion */
-	for (i = 0; i < SERDES_START_WAIT_TIMES; i++) {
-		lnstatus = readl(phy_regs + SGMII_PHY_LN_LANE_STATUS);
-		if (lnstatus & BIT(1))
-			break;
-		usleep_range(100, 200);
-	}
-
-	if (i == SERDES_START_WAIT_TIMES) {
-		netdev_err(adpt->netdev, "SGMII failed to start\n");
-		return -EIO;
-	}
-
-	/* Disable digital and SERDES loopback */
-	writel(0, phy_regs + SGMII_PHY_LN_BIST_GEN0);
-	writel(0, phy_regs + SGMII_PHY_LN_BIST_GEN2);
-	writel(0, phy_regs + SGMII_PHY_LN_CDR_CTRL1);
-
-	/* Mask out all the SGMII Interrupt */
-	writel(0, phy_regs + EMAC_SGMII_PHY_INTERRUPT_MASK);
-
-	return 0;
-}
diff --git a/drivers/net/ethernet/qualcomm/emac/emac-sgmii.c b/drivers/net/ethernet/qualcomm/emac/emac-sgmii.c
index e4bc18009d08..573c82b21de5 100644
--- a/drivers/net/ethernet/qualcomm/emac/emac-sgmii.c
+++ b/drivers/net/ethernet/qualcomm/emac/emac-sgmii.c
@@ -7,7 +7,6 @@
 
 #include <linux/interrupt.h>
 #include <linux/iopoll.h>
-#include <linux/acpi.h>
 #include <linux/of.h>
 #include <linux/of_device.h>
 #include <linux/of_platform.h>
@@ -275,76 +274,11 @@ static struct sgmii_ops fsm9900_ops = {
 	.reset = emac_sgmii_common_reset,
 };
 
-static struct sgmii_ops qdf2432_ops = {
-	.init = emac_sgmii_init_qdf2432,
-	.open = emac_sgmii_common_open,
-	.close = emac_sgmii_common_close,
-	.link_change = emac_sgmii_common_link_change,
-	.reset = emac_sgmii_common_reset,
-};
-
-#ifdef CONFIG_ACPI
-static struct sgmii_ops qdf2400_ops = {
-	.init = emac_sgmii_init_qdf2400,
-	.open = emac_sgmii_common_open,
-	.close = emac_sgmii_common_close,
-	.link_change = emac_sgmii_common_link_change,
-	.reset = emac_sgmii_common_reset,
-};
-#endif
-
-static int emac_sgmii_acpi_match(struct device *dev, void *data)
-{
-#ifdef CONFIG_ACPI
-	static const struct acpi_device_id match_table[] = {
-		{
-			.id = "QCOM8071",
-		},
-		{}
-	};
-	const struct acpi_device_id *id = acpi_match_device(match_table, dev);
-	struct sgmii_ops **ops = data;
-
-	if (id) {
-		acpi_handle handle = ACPI_HANDLE(dev);
-		unsigned long long hrv;
-		acpi_status status;
-
-		status = acpi_evaluate_integer(handle, "_HRV", NULL, &hrv);
-		if (status) {
-			if (status == AE_NOT_FOUND)
-				/* Older versions of the QDF2432 ACPI tables do
-				 * not have an _HRV property.
-				 */
-				hrv = 1;
-			else
-				/* Something is wrong with the tables */
-				return 0;
-		}
-
-		switch (hrv) {
-		case 1:
-			*ops = &qdf2432_ops;
-			return 1;
-		case 2:
-			*ops = &qdf2400_ops;
-			return 1;
-		}
-	}
-#endif
-
-	return 0;
-}
-
 static const struct of_device_id emac_sgmii_dt_match[] = {
 	{
 		.compatible = "qcom,fsm9900-emac-sgmii",
 		.data = &fsm9900_ops,
 	},
-	{
-		.compatible = "qcom,qdf2432-emac-sgmii",
-		.data = &qdf2432_ops,
-	},
 	{}
 };
 
@@ -355,45 +289,31 @@ int emac_sgmii_config(struct platform_device *pdev, struct emac_adapter *adpt)
 	struct resource *res;
 	int ret;
 
-	if (has_acpi_companion(&pdev->dev)) {
-		struct device *dev;
-
-		dev = device_find_child(&pdev->dev, &phy->sgmii_ops,
-					emac_sgmii_acpi_match);
-
-		if (!dev) {
-			dev_warn(&pdev->dev, "cannot find internal phy node\n");
-			return 0;
-		}
-
-		sgmii_pdev = to_platform_device(dev);
-	} else {
-		const struct of_device_id *match;
-		struct device_node *np;
-
-		np = of_parse_phandle(pdev->dev.of_node, "internal-phy", 0);
-		if (!np) {
-			dev_err(&pdev->dev, "missing internal-phy property\n");
-			return -ENODEV;
-		}
+	const struct of_device_id *match;
+	struct device_node *np;
 
-		sgmii_pdev = of_find_device_by_node(np);
-		of_node_put(np);
-		if (!sgmii_pdev) {
-			dev_err(&pdev->dev, "invalid internal-phy property\n");
-			return -ENODEV;
-		}
+	np = of_parse_phandle(pdev->dev.of_node, "internal-phy", 0);
+	if (!np) {
+		dev_err(&pdev->dev, "missing internal-phy property\n");
+		return -ENODEV;
+	}
 
-		match = of_match_device(emac_sgmii_dt_match, &sgmii_pdev->dev);
-		if (!match) {
-			dev_err(&pdev->dev, "unrecognized internal phy node\n");
-			ret = -ENODEV;
-			goto error_put_device;
-		}
+	sgmii_pdev = of_find_device_by_node(np);
+	of_node_put(np);
+	if (!sgmii_pdev) {
+		dev_err(&pdev->dev, "invalid internal-phy property\n");
+		return -ENODEV;
+	}
 
-		phy->sgmii_ops = (struct sgmii_ops *)match->data;
+	match = of_match_device(emac_sgmii_dt_match, &sgmii_pdev->dev);
+	if (!match) {
+		dev_err(&pdev->dev, "unrecognized internal phy node\n");
+		ret = -ENODEV;
+		goto error_put_device;
 	}
 
+	phy->sgmii_ops = (struct sgmii_ops *)match->data;
+
 	/* Base address is the first address */
 	res = platform_get_resource(sgmii_pdev, IORESOURCE_MEM, 0);
 	if (!res) {
diff --git a/drivers/net/ethernet/qualcomm/emac/emac-sgmii.h b/drivers/net/ethernet/qualcomm/emac/emac-sgmii.h
index 6daeddacbcfa..7b7b0dc44225 100644
--- a/drivers/net/ethernet/qualcomm/emac/emac-sgmii.h
+++ b/drivers/net/ethernet/qualcomm/emac/emac-sgmii.h
@@ -40,8 +40,6 @@ struct emac_sgmii {
 int emac_sgmii_config(struct platform_device *pdev, struct emac_adapter *adpt);
 
 int emac_sgmii_init_fsm9900(struct emac_adapter *adpt);
-int emac_sgmii_init_qdf2432(struct emac_adapter *adpt);
-int emac_sgmii_init_qdf2400(struct emac_adapter *adpt);
 
 int emac_sgmii_init(struct emac_adapter *adpt);
 int emac_sgmii_open(struct emac_adapter *adpt);

---
base-commit: 319fbd8fc6d339e0a1c7b067eed870c518a13a02
change-id: 20240122-topic-qdf_cleanup_net-60fceddde376

Best regards,
-- 
Konrad Dybcio <konrad.dybcio@...aro.org>

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