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domenico
2025-06-24 14:35:53 +02:00
commit c06fb25d1f
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103
target/linux/gemini/patches-6.6/0002-ARM-dts-gemini-Map-reset-keys-to-KEY_RESTART.patch Normal file
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@@ -0,0 +1,103 @@
From 091cde88b5ff2a2ca5739ce41f9cf5640a95222f Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Sun, 11 Feb 2024 22:24:25 +0100
Subject: [PATCH] ARM: dts: gemini: Map reset keys to KEY_RESTART
This maps the misc "reset", "setup" and "facory reset" keys to the
only key a standard userspace is likely to understand: KEY_RESTART.
On OpenWrt this will simply restart the system under controlled
forms.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20240211-gemini-dts-v1-3-6c09adeb4c2e@linaro.org
---
arch/arm/boot/dts/gemini/gemini-dlink-dir-685.dts | 4 ++--
arch/arm/boot/dts/gemini/gemini-dlink-dns-313.dts | 4 ++--
arch/arm/boot/dts/gemini/gemini-sl93512r.dts | 2 +-
arch/arm/boot/dts/gemini/gemini-sq201.dts | 2 +-
arch/arm/boot/dts/gemini/gemini-wbd111.dts | 4 ++--
arch/arm/boot/dts/gemini/gemini-wbd222.dts | 4 ++--
6 files changed, 10 insertions(+), 10 deletions(-)
--- a/arch/arm/boot/dts/gemini/gemini-dlink-dir-685.dts
+++ b/arch/arm/boot/dts/gemini/gemini-dlink-dir-685.dts
@@ -27,10 +27,10 @@
gpio_keys {
compatible = "gpio-keys";
- button-esc {
+ button-reset {
debounce-interval = <100>;
wakeup-source;
- linux,code = <KEY_ESC>;
+ linux,code = <KEY_RESTART>;
label = "reset";
/* Collides with LPC_LAD[0], UART DCD, SSP 97RST */
gpios = <&gpio0 8 GPIO_ACTIVE_LOW>;
--- a/arch/arm/boot/dts/gemini/gemini-dlink-dns-313.dts
+++ b/arch/arm/boot/dts/gemini/gemini-dlink-dns-313.dts
@@ -33,10 +33,10 @@
gpio_keys {
compatible = "gpio-keys";
- button-esc {
+ button-reset {
debounce-interval = <100>;
wakeup-source;
- linux,code = <KEY_ESC>;
+ linux,code = <KEY_RESTART>;
label = "reset";
gpios = <&gpio1 31 GPIO_ACTIVE_LOW>;
};
--- a/arch/arm/boot/dts/gemini/gemini-sl93512r.dts
+++ b/arch/arm/boot/dts/gemini/gemini-sl93512r.dts
@@ -43,7 +43,7 @@
button-setup {
debounce-interval = <50>;
wakeup-source;
- linux,code = <KEY_SETUP>;
+ linux,code = <KEY_RESTART>;
label = "factory reset";
/* Conflict with NAND flash */
gpios = <&gpio0 18 GPIO_ACTIVE_LOW>;
--- a/arch/arm/boot/dts/gemini/gemini-sq201.dts
+++ b/arch/arm/boot/dts/gemini/gemini-sq201.dts
@@ -30,7 +30,7 @@
button-setup {
debounce-interval = <100>;
wakeup-source;
- linux,code = <KEY_SETUP>;
+ linux,code = <KEY_RESTART>;
label = "factory reset";
/* Conflict with NAND flash */
gpios = <&gpio0 18 GPIO_ACTIVE_LOW>;
--- a/arch/arm/boot/dts/gemini/gemini-wbd111.dts
+++ b/arch/arm/boot/dts/gemini/gemini-wbd111.dts
@@ -28,10 +28,10 @@
gpio_keys {
compatible = "gpio-keys";
- button-setup {
+ button-reset {
debounce-interval = <100>;
wakeup-source;
- linux,code = <KEY_SETUP>;
+ linux,code = <KEY_RESTART>;
label = "reset";
/* Conflict with ICE */
gpios = <&gpio0 5 GPIO_ACTIVE_LOW>;
--- a/arch/arm/boot/dts/gemini/gemini-wbd222.dts
+++ b/arch/arm/boot/dts/gemini/gemini-wbd222.dts
@@ -27,10 +27,10 @@
gpio_keys {
compatible = "gpio-keys";
- button-setup {
+ button-reset {
debounce-interval = <100>;
wakeup-source;
- linux,code = <KEY_SETUP>;
+ linux,code = <KEY_RESTART>;
label = "reset";
/* Conflict with ICE */
gpios = <&gpio0 5 GPIO_ACTIVE_LOW>;

95
target/linux/gemini/patches-6.6/0005-net-ethernet-cortina-Use-TSO-also-on-common-TCP.patch Normal file
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@@ -0,0 +1,95 @@
From 91fb8a7328dda827bc6c0da240a1eb17028416cd Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Thu, 9 May 2024 23:59:28 +0200
Subject: [PATCH 2/5] net: ethernet: cortina: Use TSO also on common TCP
It is possible to push the segment offloader to also
process non-segmented frames: just pass the skb->len
or desired MSS to the offloader and it will handle them.
This is especially good if the user sets up the MTU
and the frames get big, because the checksumming engine
cannot handle any frames bigger than 1518 bytes, so
segmenting them all to be at max that will be helpful
for the hardware, which only need to quirk odd frames
such as big UDP ping packets.
The vendor driver always uses the TSO like this, and
the driver seems more stable after this, so apparently
the hardware may have been engineered to always use
the TSO on anything it can handle.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
drivers/net/ethernet/cortina/gemini.c | 31 +++++++++++++++++++++------
1 file changed, 24 insertions(+), 7 deletions(-)
--- a/drivers/net/ethernet/cortina/gemini.c
+++ b/drivers/net/ethernet/cortina/gemini.c
@@ -1148,6 +1148,7 @@ static int gmac_map_tx_bufs(struct net_d
struct gmac_txdesc *txd;
skb_frag_t *skb_frag;
dma_addr_t mapping;
+ bool tcp = false;
void *buffer;
u16 mss;
int ret;
@@ -1155,6 +1156,13 @@ static int gmac_map_tx_bufs(struct net_d
word1 = skb->len;
word3 = SOF_BIT;
+ /* Determine if we are doing TCP */
+ if (skb->protocol == htons(ETH_P_IP))
+ tcp = (ip_hdr(skb)->protocol == IPPROTO_TCP);
+ else
+ /* IPv6 */
+ tcp = (ipv6_hdr(skb)->nexthdr == IPPROTO_TCP);
+
mss = skb_shinfo(skb)->gso_size;
if (mss) {
/* This means we are dealing with TCP and skb->len is the
@@ -1167,6 +1175,20 @@ static int gmac_map_tx_bufs(struct net_d
mss, skb->len);
word1 |= TSS_MTU_ENABLE_BIT;
word3 |= mss;
+ } else if (tcp) {
+ /* Even if we are not using TSO, use the segment offloader
+ * for transferring the TCP frame: the TSO engine will deal
+ * with chopping up frames that exceed ETH_DATA_LEN which
+ * the checksumming engine cannot handle (see below) into
+ * manageable chunks. It flawlessly deals with quite big
+ * frames and frames containing custom DSA EtherTypes.
+ */
+ mss = netdev->mtu + skb_tcp_all_headers(skb);
+ mss = min(mss, skb->len);
+ netdev_dbg(netdev, "botched TSO len %04x mtu %04x mss %04x\n",
+ skb->len, netdev->mtu, mss);
+ word1 |= TSS_MTU_ENABLE_BIT;
+ word3 |= mss;
} else if (skb->len >= ETH_FRAME_LEN) {
/* Hardware offloaded checksumming isn't working on frames
* bigger than 1514 bytes. A hypothesis about this is that the
@@ -1185,21 +1207,16 @@ static int gmac_map_tx_bufs(struct net_d
}
if (skb->ip_summed == CHECKSUM_PARTIAL) {
- int tcp = 0;
-
/* We do not switch off the checksumming on non TCP/UDP
* frames: as is shown from tests, the checksumming engine
* is smart enough to see that a frame is not actually TCP
* or UDP and then just pass it through without any changes
* to the frame.
*/
- if (skb->protocol == htons(ETH_P_IP)) {
+ if (skb->protocol == htons(ETH_P_IP))
word1 |= TSS_IP_CHKSUM_BIT;
- tcp = ip_hdr(skb)->protocol == IPPROTO_TCP;
- } else { /* IPv6 */
+ else
word1 |= TSS_IPV6_ENABLE_BIT;
- tcp = ipv6_hdr(skb)->nexthdr == IPPROTO_TCP;
- }
word1 |= tcp ? TSS_TCP_CHKSUM_BIT : TSS_UDP_CHKSUM_BIT;
}

36
target/linux/gemini/patches-6.6/0006-net-ethernet-cortina-Rename-adjust-link-callback.patch Normal file
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@@ -0,0 +1,36 @@
From fa01c904b844e6033445f75b0b4d46a8e83b6086 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Fri, 10 May 2024 19:48:27 +0200
Subject: [PATCH 3/5] net: ethernet: cortina: Rename adjust link callback
The callback passed to of_phy_get_and_connect() in the
Cortina Gemini driver is called "gmac_speed_set" which is
archaic, rename it to "gmac_adjust_link" following the
pattern of most other drivers.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
drivers/net/ethernet/cortina/gemini.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/net/ethernet/cortina/gemini.c
+++ b/drivers/net/ethernet/cortina/gemini.c
@@ -288,7 +288,7 @@ static void gmac_set_flow_control(struct
spin_unlock_irqrestore(&port->config_lock, flags);
}
-static void gmac_speed_set(struct net_device *netdev)
+static void gmac_adjust_link(struct net_device *netdev)
{
struct gemini_ethernet_port *port = netdev_priv(netdev);
struct phy_device *phydev = netdev->phydev;
@@ -367,7 +367,7 @@ static int gmac_setup_phy(struct net_dev
phy = of_phy_get_and_connect(netdev,
dev->of_node,
- gmac_speed_set);
+ gmac_adjust_link);
if (!phy)
return -ENODEV;
netdev->phydev = phy;

46
target/linux/gemini/patches-6.6/0007-net-ethernet-cortina-Use-negotiated-TX-RX-pause.patch Normal file
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@@ -0,0 +1,46 @@
From 50ac9765c674bac803719c6b8294670edc6df31d Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Fri, 10 May 2024 19:44:39 +0200
Subject: [PATCH 4/5] net: ethernet: cortina: Use negotiated TX/RX pause
Instead of directly poking into registers of the PHY, use
the existing function to query phylib about this directly.
Suggested-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
drivers/net/ethernet/cortina/gemini.c | 15 +++++----------
1 file changed, 5 insertions(+), 10 deletions(-)
--- a/drivers/net/ethernet/cortina/gemini.c
+++ b/drivers/net/ethernet/cortina/gemini.c
@@ -293,8 +293,8 @@ static void gmac_adjust_link(struct net_
struct gemini_ethernet_port *port = netdev_priv(netdev);
struct phy_device *phydev = netdev->phydev;
union gmac_status status, old_status;
- int pause_tx = 0;
- int pause_rx = 0;
+ bool pause_tx = false;
+ bool pause_rx = false;
status.bits32 = readl(port->gmac_base + GMAC_STATUS);
old_status.bits32 = status.bits32;
@@ -329,14 +329,9 @@ static void gmac_adjust_link(struct net_
}
if (phydev->duplex == DUPLEX_FULL) {
- u16 lcladv = phy_read(phydev, MII_ADVERTISE);
- u16 rmtadv = phy_read(phydev, MII_LPA);
- u8 cap = mii_resolve_flowctrl_fdx(lcladv, rmtadv);
-
- if (cap & FLOW_CTRL_RX)
- pause_rx = 1;
- if (cap & FLOW_CTRL_TX)
- pause_tx = 1;
+ phy_get_pause(phydev, &pause_tx, &pause_rx);
+ netdev_dbg(netdev, "set negotiated pause params pause TX = %s, pause RX = %s\n",
+ pause_tx ? "ON" : "OFF", pause_rx ? "ON" : "OFF");
}
gmac_set_flow_control(netdev, pause_tx, pause_rx);

46
target/linux/gemini/patches-6.6/0008-net-ethernet-cortina-Implement-.set_pauseparam.patch Normal file
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@@ -0,0 +1,46 @@
From 4eed4b87f17d10b7586349c13c3a30f9c24c9ba4 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Wed, 8 May 2024 23:21:17 +0200
Subject: [PATCH 5/5] net: ethernet: cortina: Implement .set_pauseparam()
The Cortina Gemini ethernet can very well set up TX or RX
pausing, so add this functionality to the driver in a
.set_pauseparam() callback. Essentially just call down to
phylib and let phylib deal with this, .adjust_link()
will respect the setting from phylib.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
drivers/net/ethernet/cortina/gemini.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
--- a/drivers/net/ethernet/cortina/gemini.c
+++ b/drivers/net/ethernet/cortina/gemini.c
@@ -2143,6 +2143,19 @@ static void gmac_get_pauseparam(struct n
pparam->autoneg = true;
}
+static int gmac_set_pauseparam(struct net_device *netdev,
+ struct ethtool_pauseparam *pparam)
+{
+ struct phy_device *phydev = netdev->phydev;
+
+ if (!pparam->autoneg)
+ return -EOPNOTSUPP;
+
+ phy_set_asym_pause(phydev, pparam->rx_pause, pparam->tx_pause);
+
+ return 0;
+}
+
static void gmac_get_ringparam(struct net_device *netdev,
struct ethtool_ringparam *rp,
struct kernel_ethtool_ringparam *kernel_rp,
@@ -2263,6 +2276,7 @@ static const struct ethtool_ops gmac_351
.set_link_ksettings = gmac_set_ksettings,
.nway_reset = gmac_nway_reset,
.get_pauseparam = gmac_get_pauseparam,
+ .set_pauseparam = gmac_set_pauseparam,
.get_ringparam = gmac_get_ringparam,
.set_ringparam = gmac_set_ringparam,
.get_coalesce = gmac_get_coalesce,

37
target/linux/gemini/patches-6.6/300-ARM-dts-Augment-DIR-685-partition-table-for-OpenWrt.patch Normal file
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@@ -0,0 +1,37 @@
From c1aa34cd568bc7b86b82353034070c32b6ebe6db Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Mon, 11 Mar 2019 15:44:29 +0100
Subject: [PATCH] ARM: dts: Augment DIR-685 partition table for OpenWrt
Rename the firmware partition so that the firmware MTD
splitter will do its job, drop the rootfs arguments as
the MTD splitter will set this up automatically.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
arch/arm/boot/dts/gemini/gemini-dlink-dir-685.dts | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
--- a/arch/arm/boot/dts/gemini/gemini-dlink-dir-685.dts
+++ b/arch/arm/boot/dts/gemini/gemini-dlink-dir-685.dts
@@ -20,7 +20,7 @@
};
chosen {
- bootargs = "console=ttyS0,19200n8 root=/dev/sda1 rw rootwait consoleblank=300";
+ bootargs = "console=ttyS0,19200n8 consoleblank=300";
stdout-path = "uart0:19200n8";
};
@@ -317,9 +317,9 @@
* this is called "upgrade" on the vendor system.
*/
partition@40000 {
- label = "upgrade";
+ compatible = "wrg";
+ label = "firmware";
reg = <0x00040000 0x01f40000>;
- read-only;
};
/* RGDB, Residental Gateway Database? */
partition@1f80000 {