Merge tag 'net-20250930' of https://source.denx.de/u-boot/custodians/u-boot-net

Pull request net-20250930

net-common:
- DesignWare: avoid regulator enable failure
- Fix RMII help text

net-lwip:
- Ensure alignment of packet buffers
- Use NTP server(s) obtained from DHCP

Author: trini

drivers/net/Kconfig

@@ -662,7 +662,7 @@ config MII
 config RMII
 	bool "Enable RMII"
 	help
-	  Enable support of the Reduced Media-Independent Interface (MII)
+	  Enable support of the Reduced Media-Independent Interface (RMII)
 
 config PCNET
 	bool "AMD PCnet series Ethernet controller driver"

drivers/net/designware.c

@@ -894,7 +894,7 @@ int designware_eth_probe(struct udevice *dev)
 	if (ret) {
 		debug("%s: No phy supply\n", dev->name);
 	} else {
-		ret = regulator_set_enable(phy_supply, true);
+		ret = regulator_set_enable_if_allowed(phy_supply, true);
 		if (ret) {
 			puts("Error enabling phy supply\n");
 			return ret;

lib/lwip/u-boot/lwipopts.h

@@ -44,6 +44,7 @@
 #define DNS_DEBUG                       LWIP_DBG_ON
 #define IP6_DEBUG                       LWIP_DBG_OFF
 #define DHCP6_DEBUG                     LWIP_DBG_OFF
+#define SNTP_DEBUG                      LWIP_DBG_ON
 #endif
 
 #define LWIP_TESTMODE                   0

net/lwip/dhcp.c

@@ -8,6 +8,7 @@
 #include <dm/device.h>
 #include <linux/delay.h>
 #include <linux/errno.h>
+#include <lwip/apps/sntp.h>
 #include <lwip/dhcp.h>
 #include <lwip/dns.h>
 #include <lwip/timeouts.h>
@@ -32,6 +33,7 @@ static int dhcp_loop(struct udevice *udev)
 	char ipstr[] = "ipaddr\0\0";
 	char maskstr[] = "netmask\0\0";
 	char gwstr[] = "gatewayip\0\0";
+	const ip_addr_t *ntpserverip;
 	unsigned long start;
 	struct netif *netif;
 	struct dhcp *dhcp;
@@ -48,6 +50,13 @@ static int dhcp_loop(struct udevice *udev)
 	if (!netif)
 		return CMD_RET_FAILURE;
 
+	/*
+	 * Request the DHCP stack to parse and store the NTP servers for
+	 * eventual use by the SNTP command
+	 */
+	if (CONFIG_IS_ENABLED(CMD_SNTP))
+		sntp_servermode_dhcp(1);
+
 	start = get_timer(0);
 
 	if (dhcp_start(netif))
@@ -102,6 +111,11 @@ static int dhcp_loop(struct udevice *udev)
 		strncpy(boot_file_name, dhcp->boot_file_name,
 			sizeof(boot_file_name));
 #endif
+	if (CONFIG_IS_ENABLED(CMD_SNTP)) {
+		ntpserverip = sntp_getserver(1);
+		if (ntpserverip != IP_ADDR_ANY)
+			env_set("ntpserverip", ip4addr_ntoa(ntpserverip));
+	}
 
 	printf("DHCP client bound to address %pI4 (%lu ms)\n",
 	       &dhcp->offered_ip_addr, get_timer(start));

net/lwip/net-lwip.c

@@ -7,6 +7,7 @@
 #include <dm/device.h>
 #include <dm/uclass.h>
 #include <hexdump.h>
+#include <linux/compiler_attributes.h>
 #include <linux/kernel.h>
 #include <lwip/ip4_addr.h>
 #include <lwip/dns.h>
@@ -30,7 +31,8 @@ void (*push_packet)(void *, int len) = 0;
 int net_try_count;
 static int net_restarted;
 int net_restart_wrap;
-static uchar net_pkt_buf[(PKTBUFSRX) * PKTSIZE_ALIGN + PKTALIGN];
+static uchar net_pkt_buf[(PKTBUFSRX) * PKTSIZE_ALIGN + PKTALIGN]
+	__aligned(PKTALIGN);
 uchar *net_rx_packets[PKTBUFSRX];
 uchar *net_rx_packet;
 const u8 net_bcast_ethaddr[6] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };