openwrt/target/linux/at91/patches-5.10/115-net-macb-add-userio-bits-as-platform-configuration.patch

From 89f37ac2780d113d3c17d329726c0e92a1400744 Mon Sep 17 00:00:00 2001
From: Claudiu Beznea <claudiu.beznea@microchip.com>
Date: Wed, 9 Dec 2020 15:03:32 +0200
Subject: [PATCH 115/247] net: macb: add userio bits as platform configuration

This is necessary for SAMA7G5 as it uses different values for
PHY interface and also introduces hdfctlen bit.

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/cadence/macb.h      | 10 +++++++++
 drivers/net/ethernet/cadence/macb_main.c | 28 ++++++++++++++++++++----
 2 files changed, 34 insertions(+), 4 deletions(-)

--- a/drivers/net/ethernet/cadence/macb.h
+++ b/drivers/net/ethernet/cadence/macb.h
@@ -1104,6 +1104,14 @@ struct macb_pm_data {
 	u32 usrio;
 };
 
+struct macb_usrio_config {
+	u32 mii;
+	u32 rmii;
+	u32 rgmii;
+	u32 refclk;
+	u32 hdfctlen;
+};
+
 struct macb_config {
 	u32			caps;
 	unsigned int		dma_burst_length;
@@ -1112,6 +1120,7 @@ struct macb_config {
 			    struct clk **rx_clk, struct clk **tsu_clk);
 	int	(*init)(struct platform_device *pdev);
 	int	jumbo_max_len;
+	const struct macb_usrio_config *usrio;
 };
 
 struct tsu_incr {
@@ -1244,6 +1253,7 @@ struct macb {
 	u32	rx_intr_mask;
 
 	struct macb_pm_data pm_data;
+	const struct macb_usrio_config *usrio;
 };
 
 #ifdef CONFIG_MACB_USE_HWSTAMP
--- a/drivers/net/ethernet/cadence/macb_main.c
+++ b/drivers/net/ethernet/cadence/macb_main.c
@@ -3831,15 +3831,15 @@ static int macb_init(struct platform_dev
 	if (!(bp->caps & MACB_CAPS_USRIO_DISABLED)) {
 		val = 0;
 		if (phy_interface_mode_is_rgmii(bp->phy_interface))
-			val = GEM_BIT(RGMII);
+			val = bp->usrio->rgmii;
 		else if (bp->phy_interface == PHY_INTERFACE_MODE_RMII &&
 			 (bp->caps & MACB_CAPS_USRIO_DEFAULT_IS_MII_GMII))
-			val = MACB_BIT(RMII);
+			val = bp->usrio->rmii;
 		else if (!(bp->caps & MACB_CAPS_USRIO_DEFAULT_IS_MII_GMII))
-			val = MACB_BIT(MII);
+			val = bp->usrio->mii;
 
 		if (bp->caps & MACB_CAPS_USRIO_HAS_CLKEN)
-			val |= MACB_BIT(CLKEN);
+			val |= bp->usrio->refclk;
 
 		macb_or_gem_writel(bp, USRIO, val);
 	}
@@ -4357,6 +4357,13 @@ static int fu540_c000_init(struct platfo
 	return macb_init(pdev);
 }
 
+static const struct macb_usrio_config macb_default_usrio = {
+	.mii = MACB_BIT(MII),
+	.rmii = MACB_BIT(RMII),
+	.rgmii = GEM_BIT(RGMII),
+	.refclk = MACB_BIT(CLKEN),
+};
+
 static const struct macb_config fu540_c000_config = {
 	.caps = MACB_CAPS_GIGABIT_MODE_AVAILABLE | MACB_CAPS_JUMBO |
 		MACB_CAPS_GEM_HAS_PTP,
@@ -4364,12 +4371,14 @@ static const struct macb_config fu540_c0
 	.clk_init = fu540_c000_clk_init,
 	.init = fu540_c000_init,
 	.jumbo_max_len = 10240,
+	.usrio = &macb_default_usrio,
 };
 
 static const struct macb_config at91sam9260_config = {
 	.caps = MACB_CAPS_USRIO_HAS_CLKEN | MACB_CAPS_USRIO_DEFAULT_IS_MII_GMII,
 	.clk_init = macb_clk_init,
 	.init = macb_init,
+	.usrio = &macb_default_usrio,
 };
 
 static const struct macb_config sama5d3macb_config = {
@@ -4377,6 +4386,7 @@ static const struct macb_config sama5d3m
 	      | MACB_CAPS_USRIO_HAS_CLKEN | MACB_CAPS_USRIO_DEFAULT_IS_MII_GMII,
 	.clk_init = macb_clk_init,
 	.init = macb_init,
+	.usrio = &macb_default_usrio,
 };
 
 static const struct macb_config pc302gem_config = {
@@ -4384,6 +4394,7 @@ static const struct macb_config pc302gem
 	.dma_burst_length = 16,
 	.clk_init = macb_clk_init,
 	.init = macb_init,
+	.usrio = &macb_default_usrio,
 };
 
 static const struct macb_config sama5d2_config = {
@@ -4391,6 +4402,7 @@ static const struct macb_config sama5d2_
 	.dma_burst_length = 16,
 	.clk_init = macb_clk_init,
 	.init = macb_init,
+	.usrio = &macb_default_usrio,
 };
 
 static const struct macb_config sama5d3_config = {
@@ -4400,6 +4412,7 @@ static const struct macb_config sama5d3_
 	.clk_init = macb_clk_init,
 	.init = macb_init,
 	.jumbo_max_len = 10240,
+	.usrio = &macb_default_usrio,
 };
 
 static const struct macb_config sama5d4_config = {
@@ -4407,18 +4420,21 @@ static const struct macb_config sama5d4_
 	.dma_burst_length = 4,
 	.clk_init = macb_clk_init,
 	.init = macb_init,
+	.usrio = &macb_default_usrio,
 };
 
 static const struct macb_config emac_config = {
 	.caps = MACB_CAPS_NEEDS_RSTONUBR | MACB_CAPS_MACB_IS_EMAC,
 	.clk_init = at91ether_clk_init,
 	.init = at91ether_init,
+	.usrio = &macb_default_usrio,
 };
 
 static const struct macb_config np4_config = {
 	.caps = MACB_CAPS_USRIO_DISABLED,
 	.clk_init = macb_clk_init,
 	.init = macb_init,
+	.usrio = &macb_default_usrio,
 };
 
 static const struct macb_config zynqmp_config = {
@@ -4429,6 +4445,7 @@ static const struct macb_config zynqmp_c
 	.clk_init = macb_clk_init,
 	.init = macb_init,
 	.jumbo_max_len = 10240,
+	.usrio = &macb_default_usrio,
 };
 
 static const struct macb_config zynq_config = {
@@ -4437,6 +4454,7 @@ static const struct macb_config zynq_con
 	.dma_burst_length = 16,
 	.clk_init = macb_clk_init,
 	.init = macb_init,
+	.usrio = &macb_default_usrio,
 };
 
 static const struct of_device_id macb_dt_ids[] = {
@@ -4557,6 +4575,8 @@ static int macb_probe(struct platform_de
 		bp->wol |= MACB_WOL_HAS_MAGIC_PACKET;
 	device_set_wakeup_capable(&pdev->dev, bp->wol & MACB_WOL_HAS_MAGIC_PACKET);
 
+	bp->usrio = macb_config->usrio;
+
 	spin_lock_init(&bp->lock);
 
 	/* setup capabilities */