bcm27xx: add kernel 5.10 support

Rebased RPi foundation patches on linux 5.10.59, removed applied and reverted
patches, wireless patches and defconfig patches.

bcm2708: boot tested on RPi B+ v1.2
bcm2709: boot tested on RPi 4B v1.1 4G
bcm2711: boot tested on RPi 4B v1.1 4G

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

1 files changed, 134 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-5.10/950-0547-r8152-adjust-the-flow-of-power-cut-for-RTL8153B.patch b/target/linux/bcm27xx/patches-5.10/950-0547-r8152-adjust-the-flow-of-power-cut-for-RTL8153B.patch
new file mode 100644
index 0000000000..9d12cb9761
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0547-r8152-adjust-the-flow-of-power-cut-for-RTL8153B.patch
@@ -0,0 +1,134 @@
+From 29a61d8564ad3439d03c7ec135016a4e70072af1 Mon Sep 17 00:00:00 2001
+From: Hayes Wang <hayeswang@realtek.com>
+Date: Wed, 3 Feb 2021 17:14:29 +0800
+Subject: [PATCH] r8152: adjust the flow of power cut for RTL8153B
+
+commit 80fd850b31f09263ad175b2f640d5c5c6f76ed41 upstream.
+
+For runtime resuming, the RTL8153B may be resumed from the state
+of power cut, when enabling the feature of UPS. Then, the PHY
+would be reset, so it is necessary to be initailized again.
+
+Besides, the USB_U1U2_TIMER also has to be set again, so I move
+it from r8153b_init() to r8153b_hw_phy_cfg().
+
+Signed-off-by: Hayes Wang <hayeswang@realtek.com>
+Signed-off-by: Jakub Kicinski <kuba@kernel.org>
+---
+ drivers/net/usb/r8152.c | 68 ++++++++++++++++++++++++-----------------
+ 1 file changed, 40 insertions(+), 28 deletions(-)
+
+--- a/drivers/net/usb/r8152.c
++++ b/drivers/net/usb/r8152.c
+@@ -1371,6 +1371,10 @@ void write_mii_word(struct net_device *n
+ static int
+ r8152_submit_rx(struct r8152 *tp, struct rx_agg *agg, gfp_t mem_flags);
+ 
++static int
++rtl8152_set_speed(struct r8152 *tp, u8 autoneg, u32 speed, u8 duplex,
++		  u32 advertising);
++
+ static int rtl8152_set_mac_address(struct net_device *netdev, void *p)
+ {
+ 	struct r8152 *tp = netdev_priv(netdev);
+@@ -3182,8 +3186,6 @@ static void r8153b_ups_en(struct r8152 *
+ 		ocp_data |= BIT(0);
+ 		ocp_write_byte(tp, MCU_TYPE_USB, 0xcfff, ocp_data);
+ 	} else {
+-		u16 data;
+-
+ 		ocp_data &= ~(UPS_EN | USP_PREWAKE);
+ 		ocp_write_byte(tp, MCU_TYPE_USB, USB_POWER_CUT, ocp_data);
+ 
+@@ -3191,31 +3193,20 @@ static void r8153b_ups_en(struct r8152 *
+ 		ocp_data &= ~BIT(0);
+ 		ocp_write_byte(tp, MCU_TYPE_USB, 0xcfff, ocp_data);
+ 
+-		ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_MISC_0);
+-		ocp_data &= ~PCUT_STATUS;
+-		ocp_write_word(tp, MCU_TYPE_USB, USB_MISC_0, ocp_data);
++		if (ocp_read_word(tp, MCU_TYPE_USB, USB_MISC_0) & PCUT_STATUS) {
++			int i;
+ 
+-		data = r8153_phy_status(tp, 0);
++			for (i = 0; i < 500; i++) {
++				if (ocp_read_word(tp, MCU_TYPE_PLA, PLA_BOOT_CTRL) &
++				    AUTOLOAD_DONE)
++					break;
++				msleep(20);
++			}
+ 
+-		switch (data) {
+-		case PHY_STAT_PWRDN:
+-		case PHY_STAT_EXT_INIT:
+-			r8153b_green_en(tp,
+-					test_bit(GREEN_ETHERNET, &tp->flags));
+-
+-			data = r8152_mdio_read(tp, MII_BMCR);
+-			data &= ~BMCR_PDOWN;
+-			data |= BMCR_RESET;
+-			r8152_mdio_write(tp, MII_BMCR, data);
++			tp->rtl_ops.hw_phy_cfg(tp);
+ 
+-			data = r8153_phy_status(tp, PHY_STAT_LAN_ON);
+-			fallthrough;
+-
+-		default:
+-			if (data != PHY_STAT_LAN_ON)
+-				netif_warn(tp, link, tp->netdev,
+-					   "PHY not ready");
+-			break;
++			rtl8152_set_speed(tp, tp->autoneg, tp->speed,
++					  tp->duplex, tp->advertising);
+ 		}
+ 	}
+ }
+@@ -4587,13 +4578,37 @@ static void r8153b_hw_phy_cfg(struct r81
+ 	u32 ocp_data;
+ 	u16 data;
+ 
++	ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_MISC_0);
++	if (ocp_data & PCUT_STATUS) {
++		ocp_data &= ~PCUT_STATUS;
++		ocp_write_word(tp, MCU_TYPE_USB, USB_MISC_0, ocp_data);
++	}
++
+ 	/* disable ALDPS before updating the PHY parameters */
+ 	r8153_aldps_en(tp, false);
+ 
+ 	/* disable EEE before updating the PHY parameters */
+ 	rtl_eee_enable(tp, false);
+ 
+-	rtl8152_apply_firmware(tp, false);
++	/* U1/U2/L1 idle timer. 500 us */
++	ocp_write_word(tp, MCU_TYPE_USB, USB_U1U2_TIMER, 500);
++
++	data = r8153_phy_status(tp, 0);
++
++	switch (data) {
++	case PHY_STAT_PWRDN:
++	case PHY_STAT_EXT_INIT:
++		rtl8152_apply_firmware(tp, true);
++
++		data = r8152_mdio_read(tp, MII_BMCR);
++		data &= ~BMCR_PDOWN;
++		r8152_mdio_write(tp, MII_BMCR, data);
++		break;
++	case PHY_STAT_LAN_ON:
++	default:
++		rtl8152_apply_firmware(tp, false);
++		break;
++	}
+ 
+ 	r8153b_green_en(tp, test_bit(GREEN_ETHERNET, &tp->flags));
+ 
+@@ -5522,9 +5537,6 @@ static void r8153b_init(struct r8152 *tp
+ 	/* MSC timer = 0xfff * 8ms = 32760 ms */
+ 	ocp_write_word(tp, MCU_TYPE_USB, USB_MSC_TIMER, 0x0fff);
+ 
+-	/* U1/U2/L1 idle timer. 500 us */
+-	ocp_write_word(tp, MCU_TYPE_USB, USB_U1U2_TIMER, 500);
+-
+ 	r8153b_power_cut_en(tp, false);
+ 	r8153b_ups_en(tp, false);
+ 	r8153_queue_wake(tp, false);