Merge branch 'master' of git://git.denx.de/u-boot-net

Makefile

@@ -238,7 +238,7 @@ ifdef SOC
 LIBS-y += $(CPUDIR)/$(SOC)/lib$(SOC).o
 endif
 ifeq ($(CPU),ixp)
-LIBS-y += arch/arm/cpu/ixp/npe/libnpe.o
+LIBS-y += drivers/net/npe/libnpe.o
 endif
 LIBS-$(CONFIG_OF_EMBED) += dts/libdts.o
 LIBS-y += arch/$(ARCH)/lib/lib$(ARCH).o

common/cmd_bootm.c

@@ -564,6 +564,13 @@ int do_bootm_subcommand(cmd_tbl_t *cmdtp, int flag, int argc,
 			break;
 		case BOOTM_STATE_OS_GO:
 			disable_interrupts();
+#ifdef CONFIG_NETCONSOLE
+			/*
+			 * Stop the ethernet stack if NetConsole could have
+			 * left it up
+			 */
+			eth_halt();
+#endif
 			arch_preboot_os();
 			boot_fn(BOOTM_STATE_OS_GO, argc, argv, &images);
 			break;
@@ -622,6 +629,11 @@ int do_bootm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 	 */
 	iflag = disable_interrupts();
 
+#ifdef CONFIG_NETCONSOLE
+	/* Stop the ethernet stack if NetConsole could have left it up */
+	eth_halt();
+#endif
+
 #if defined(CONFIG_CMD_USB)
 	/*
 	 * turn off USB to prevent the host controller from writing to the
@@ -1599,6 +1611,11 @@ static int do_bootz(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 	 */
 	disable_interrupts();
 
+#ifdef CONFIG_NETCONSOLE
+	/* Stop the ethernet stack if NetConsole could have left it up */
+	eth_halt();
+#endif
+
 #if defined(CONFIG_CMD_USB)
 	/*
 	 * turn off USB to prevent the host controller from writing to the

common/cmd_pxe.c

@@ -450,6 +450,7 @@ struct pxe_label {
 	char *kernel;
 	char *append;
 	char *initrd;
+	char *fdt;
 	int attempted;
 	int localboot;
 	struct list_head list;
@@ -517,6 +518,9 @@ static void label_destroy(struct pxe_label *label)
 	if (label->initrd)
 		free(label->initrd);
 
+	if (label->fdt)
+		free(label->fdt);
+
 	free(label);
 }
 
@@ -541,6 +545,9 @@ static void label_print(void *data)
 
 	if (label->initrd)
 		printf("\t\tinitrd: %s\n", label->initrd);
+
+	if (label->fdt)
+		printf("\tfdt: %s\n", label->fdt);
 }
 
 /*
@@ -628,10 +635,29 @@ static void label_boot(struct pxe_label *label)
 	bootm_argv[1] = getenv("kernel_addr_r");
 
 	/*
-	 * fdt usage is optional.  If there is an fdt_addr specified, we will
-	 * pass it along to bootm, and adjust argc appropriately.
+	 * fdt usage is optional:
+	 * It handles the following scenarios. All scenarios are exclusive
+	 *
+	 * Scenario 1: If fdt_addr_r specified and "fdt" label is defined in
+	 * pxe file, retrieve fdt blob from server. Pass fdt_addr_r to bootm,
+	 * and adjust argc appropriately.
+	 *
+	 * Scenario 2: If there is an fdt_addr specified, pass it along to
+	 * bootm, and adjust argc appropriately.
+	 *
+	 * Scenario 3: fdt blob is not available.
 	 */
-	bootm_argv[3] = getenv("fdt_addr");
+	bootm_argv[3] = getenv("fdt_addr_r");
+
+	/* if fdt label is defined then get fdt from server */
+	if (bootm_argv[3] && label->fdt) {
+		if (get_relfile_envaddr(label->fdt, "fdt_addr_r") < 0) {
+			printf("Skipping %s for failure retrieving fdt\n",
+					label->name);
+			return;
+		}
+	} else
+		bootm_argv[3] = getenv("fdt_addr");
 
 	if (bootm_argv[3])
 		bootm_argc = 4;
@@ -658,6 +684,7 @@ enum token_type {
 	T_DEFAULT,
 	T_PROMPT,
 	T_INCLUDE,
+	T_FDT,
 	T_INVALID
 };
 
@@ -685,6 +712,7 @@ static const struct token keywords[] = {
 	{"append", T_APPEND},
 	{"initrd", T_INITRD},
 	{"include", T_INCLUDE},
+	{"fdt", T_FDT},
 	{NULL, T_INVALID}
 };
 
@@ -1074,6 +1102,11 @@ static int parse_label(char **c, struct pxe_menu *cfg)
 				err = parse_sliteral(c, &label->initrd);
 			break;
 
+		case T_FDT:
+			if (!label->fdt)
+				err = parse_sliteral(c, &label->fdt);
+			break;
+
 		case T_LOCALBOOT:
 			err = parse_integer(c, &label->localboot);
 			break;

doc/README.NetConsole

@@ -6,11 +6,16 @@ serial and network input/output devices by adjusting the 'stdin' and
 set either of these variables to "nc". Input and output can be
 switched independently.
 
+CONFIG_NETCONSOLE_BUFFER_SIZE - Override the default buffer size
+
 We use an environment variable 'ncip' to set the IP address and the
 port of the destination. The format is <ip_addr>:<port>. If <port> is
 omitted, the value of 6666 is used. If the env var doesn't exist, the
 broadcast address and port 6666 are used. If it is set to an IP
 address of 0 (or 0.0.0.0) then no messages are sent to the network.
+The source / listening port can be configured separately by setting
+the 'ncinport' environment variable and the destination port can be
+configured by setting the 'ncoutport' environment variable.
 
 For example, if your server IP is 192.168.1.1, you could use:
 

doc/README.pxe

@@ -93,8 +93,13 @@ pxe boot
      be passed to the bootm command to boot the kernel. These environment
      variables are required to be set.
 
-     fdt_addr - the location of a fdt blob. If this is set, it will be passed
-     to bootm when booting a kernel.
+     fdt_addr_r - location in RAM at which 'pxe boot' will store the fdt blob it
+     retrieves from tftp. The retrieval is possible if 'fdt' label is defined in
+     pxe file and 'fdt_addr_r' is set. If retrieval is possible, 'fdt_addr_r'
+     will be passed to bootm command to boot the kernel.
+
+     fdt_addr - the location of a fdt blob. 'fdt_addr' will be passed to bootm
+     command if it is set and 'fdt_addr_r' is not passed to bootm command.
 
 pxe file format
 ===============
@@ -156,6 +161,11 @@ initrd <path>	    - if this label is chosen, use tftp to retrieve the initrd
 		      the initrd_addr_r environment variable, and that address
 		      will be passed to bootm.
 
+fdt <path>	    - if this label is chosen, use tftp to retrieve the fdt blob
+		      at <path>. it will be stored at the address indicated in
+		      the fdt_addr_r environment variable, and that address will
+		      be passed to bootm.
+
 localboot <flag>    - Run the command defined by "localcmd" in the environment.
 		      <flag> is ignored and is only here to match the syntax of
 		      PXELINUX config files.

drivers/net/Makefile

@@ -80,6 +80,7 @@ COBJS-$(CONFIG_XILINX_AXIEMAC) += xilinx_axi_emac.o
 COBJS-$(CONFIG_XILINX_EMACLITE) += xilinx_emaclite.o
 COBJS-$(CONFIG_XILINX_LL_TEMAC) += xilinx_ll_temac.o xilinx_ll_temac_mdio.o \
 		xilinx_ll_temac_fifo.o xilinx_ll_temac_sdma.o
+COBJS-$(CONFIG_ZYNQ_GEM) += zynq_gem.o
 
 COBJS	:= $(sort $(COBJS-y))
 SRCS	:= $(COBJS:.o=.c)

drivers/net/armada100_fec.c

@@ -565,7 +565,7 @@ static int armdfec_send(struct eth_device *dev, void *dataptr, int datasize)
 	struct tx_desc *p_txdesc = darmdfec->p_txdesc;
 	void *p = (void *)dataptr;
 	int retry = PHY_WAIT_ITERATIONS * PHY_WAIT_MICRO_SECONDS;
-	u32 cmd_sts;
+	u32 cmd_sts, temp;
 
 	/* Copy buffer if it's misaligned */
 	if ((u32)dataptr & 0x07) {
@@ -586,7 +586,8 @@ static int armdfec_send(struct eth_device *dev, void *dataptr, int datasize)
 	p_txdesc->byte_cnt = datasize;
 
 	/* Apply send command using high priority TX queue */
-	writel((u32)p_txdesc, &regs->txcdp[TXQ]);
+	temp = (u32)&regs->txcdp[TXQ];
+	writel((u32)p_txdesc, temp);
 	writel(SDMA_CMD_TXDL | SDMA_CMD_TXDH | SDMA_CMD_ERD, &regs->sdma_cmd);
 
 	/*

drivers/net/fec_mxc.c

@@ -31,9 +31,16 @@
 #include <asm/arch/imx-regs.h>
 #include <asm/io.h>
 #include <asm/errno.h>
+#include <linux/compiler.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
+/*
+ * Timeout the transfer after 5 mS. This is usually a bit more, since
+ * the code in the tightloops this timeout is used in adds some overhead.
+ */
+#define FEC_XFER_TIMEOUT	5000
+
 #ifndef CONFIG_MII
 #error "CONFIG_MII has to be defined!"
 #endif
@@ -249,7 +256,7 @@ static int miiphy_wait_aneg(struct eth_device *dev)
 
 static int fec_rx_task_enable(struct fec_priv *fec)
 {
-	writel(1 << 24, &fec->eth->r_des_active);
+	writel(FEC_R_DES_ACTIVE_RDAR, &fec->eth->r_des_active);
 	return 0;
 }
 
@@ -260,7 +267,7 @@ static int fec_rx_task_disable(struct fec_priv *fec)
 
 static int fec_tx_task_enable(struct fec_priv *fec)
 {
-	writel(1 << 24, &fec->eth->x_des_active);
+	writel(FEC_X_DES_ACTIVE_TDAR, &fec->eth->x_des_active);
 	return 0;
 }
 
@@ -694,8 +701,10 @@ static void fec_halt(struct eth_device *dev)
 static int fec_send(struct eth_device *dev, void *packet, int length)
 {
 	unsigned int status;
-	uint32_t size;
+	uint32_t size, end;
 	uint32_t addr;
+	int timeout = FEC_XFER_TIMEOUT;
+	int ret = 0;
 
 	/*
 	 * This routine transmits one frame.  This routine only accepts
@@ -721,8 +730,9 @@ static int fec_send(struct eth_device *dev, void *packet, int length)
 #endif
 
 	addr = (uint32_t)packet;
-	size = roundup(length, ARCH_DMA_MINALIGN);
-	flush_dcache_range(addr, addr + size);
+	end = roundup(addr + length, ARCH_DMA_MINALIGN);
+	addr &= ~(ARCH_DMA_MINALIGN - 1);
+	flush_dcache_range(addr, end);
 
 	writew(length, &fec->tbd_base[fec->tbd_index].data_length);
 	writel(addr, &fec->tbd_base[fec->tbd_index].data_pointer);
@@ -758,22 +768,28 @@ static int fec_send(struct eth_device *dev, void *packet, int length)
 	 * invalidate data cache to see what's really in RAM. Also, we need
 	 * barrier here.
 	 */
-	invalidate_dcache_range(addr, addr + size);
-	while (readw(&fec->tbd_base[fec->tbd_index].status) & FEC_TBD_READY) {
-		udelay(1);
-		invalidate_dcache_range(addr, addr + size);
+	while (--timeout) {
+		if (!(readl(&fec->eth->x_des_active) & FEC_X_DES_ACTIVE_TDAR))
+			break;
 	}
 
-	debug("fec_send: status 0x%x index %d\n",
+	if (!timeout)
+		ret = -EINVAL;
+
+	invalidate_dcache_range(addr, addr + size);
+	if (readw(&fec->tbd_base[fec->tbd_index].status) & FEC_TBD_READY)
+		ret = -EINVAL;
+
+	debug("fec_send: status 0x%x index %d ret %i\n",
 			readw(&fec->tbd_base[fec->tbd_index].status),
-			fec->tbd_index);
+			fec->tbd_index, ret);
 	/* for next transmission use the other buffer */
 	if (fec->tbd_index)
 		fec->tbd_index = 0;
 	else
 		fec->tbd_index = 1;
 
-	return 0;
+	return ret;
 }
 
 /**
@@ -789,9 +805,9 @@ static int fec_recv(struct eth_device *dev)
 	int frame_length, len = 0;
 	struct nbuf *frame;
 	uint16_t bd_status;
-	uint32_t addr, size;
+	uint32_t addr, size, end;
 	int i;
-	uchar buff[FEC_MAX_PKT_SIZE];
+	uchar buff[FEC_MAX_PKT_SIZE] __aligned(ARCH_DMA_MINALIGN);
 
 	/*
 	 * Check if any critical events have happened
@@ -853,8 +869,9 @@ static int fec_recv(struct eth_device *dev)
 			 * Invalidate data cache over the buffer
 			 */
 			addr = (uint32_t)frame;
-			size = roundup(frame_length, ARCH_DMA_MINALIGN);
-			invalidate_dcache_range(addr, addr + size);
+			end = roundup(addr + frame_length, ARCH_DMA_MINALIGN);
+			addr &= ~(ARCH_DMA_MINALIGN - 1);
+			invalidate_dcache_range(addr, end);
 
 			/*
 			 *  Fill the buffer and pass it to upper layers

drivers/net/fec_mxc.h

@@ -213,6 +213,9 @@ struct ethernet_regs {
 
 #define FEC_X_WMRK_STRFWD		0x00000100
 
+#define FEC_X_DES_ACTIVE_TDAR		0x01000000
+#define FEC_R_DES_ACTIVE_RDAR		0x01000000
+
 #if defined(CONFIG_MX25) || defined(CONFIG_MX53)
 /* defines for MIIGSK */
 /* RMII frequency control: 0=50MHz, 1=5MHz */

drivers/net/netconsole.c

@@ -28,7 +28,11 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
-static char input_buffer[512];
+#ifndef CONFIG_NETCONSOLE_BUFFER_SIZE
+#define CONFIG_NETCONSOLE_BUFFER_SIZE 512
+#endif
+
+static char input_buffer[CONFIG_NETCONSOLE_BUFFER_SIZE];
 static int input_size; /* char count in input buffer */
 static int input_offset; /* offset to valid chars in input buffer */
 static int input_recursion;
@@ -36,9 +40,15 @@ static int output_recursion;
 static int net_timeout;
 static uchar nc_ether[6]; /* server enet address */
 static IPaddr_t nc_ip; /* server ip */
-static short nc_port; /* source/target port */
+static short nc_out_port; /* target output port */
+static short nc_in_port; /* source input port */
 static const char *output_packet; /* used by first send udp */
 static int output_packet_len;
+/*
+ * Start with a default last protocol.
+ * We are only interested in NETCONS or not.
+ */
+enum proto_t net_loop_last_protocol = BOOTP;
 
 static void nc_wait_arp_handler(uchar *pkt, unsigned dest,
 				 IPaddr_t sip, unsigned src,
@@ -59,8 +69,69 @@ static void nc_timeout(void)
 	net_set_state(NETLOOP_SUCCESS);
 }
 
+static int is_broadcast(IPaddr_t ip)
+{
+	static IPaddr_t netmask;
+	static IPaddr_t our_ip;
+	static int env_changed_id;
+	int env_id = get_env_id();
+
+	/* update only when the environment has changed */
+	if (env_changed_id != env_id) {
+		netmask = getenv_IPaddr("netmask");
+		our_ip = getenv_IPaddr("ipaddr");
+
+		env_changed_id = env_id;
+	}
+
+	return (ip == ~0 ||				/* 255.255.255.255 */
+	    ((netmask & our_ip) == (netmask & ip) &&	/* on the same net */
+	    (netmask | ip) == ~0));		/* broadcast to our net */
+}
+
+static int refresh_settings_from_env(void)
+{
+	const char *p;
+	static int env_changed_id;
+	int env_id = get_env_id();
+
+	/* update only when the environment has changed */
+	if (env_changed_id != env_id) {
+		if (getenv("ncip")) {
+			nc_ip = getenv_IPaddr("ncip");
+			if (!nc_ip)
+				return -1;	/* ncip is 0.0.0.0 */
+			p = strchr(getenv("ncip"), ':');
+			if (p != NULL) {
+				nc_out_port = simple_strtoul(p + 1, NULL, 10);
+				nc_in_port = nc_out_port;
+			}
+		} else
+			nc_ip = ~0; /* ncip is not set, so broadcast */
+
+		p = getenv("ncoutport");
+		if (p != NULL)
+			nc_out_port = simple_strtoul(p, NULL, 10);
+		p = getenv("ncinport");
+		if (p != NULL)
+			nc_in_port = simple_strtoul(p, NULL, 10);
+
+		if (is_broadcast(nc_ip))
+			/* broadcast MAC address */
+			memset(nc_ether, 0xff, sizeof(nc_ether));
+		else
+			/* force arp request */
+			memset(nc_ether, 0, sizeof(nc_ether));
+	}
+	return 0;
+}
+
+/**
+ * Called from NetLoop in net/net.c before each packet
+ */
 void NcStart(void)
 {
+	refresh_settings_from_env();
 	if (!output_packet_len || memcmp(nc_ether, NetEtherNullAddr, 6)) {
 		/* going to check for input packet */
 		net_set_udp_handler(nc_handler);
@@ -71,18 +142,22 @@ void NcStart(void)
 		net_set_arp_handler(nc_wait_arp_handler);
 		pkt = (uchar *)NetTxPacket + NetEthHdrSize() + IP_UDP_HDR_SIZE;
 		memcpy(pkt, output_packet, output_packet_len);
-		NetSendUDPPacket(nc_ether, nc_ip, nc_port, nc_port,
+		NetSendUDPPacket(nc_ether, nc_ip, nc_out_port, nc_in_port,
 			output_packet_len);
 	}
 }
 
-int nc_input_packet(uchar *pkt, unsigned dest, unsigned src, unsigned len)
+int nc_input_packet(uchar *pkt, IPaddr_t src_ip, unsigned dest_port,
+	unsigned src_port, unsigned len)
 {
 	int end, chunk;
 
-	if (dest != nc_port || !len)
+	if (dest_port != nc_in_port || !len)
 		return 0; /* not for us */
 
+	if (src_ip != nc_ip && !is_broadcast(nc_ip))
+		return 0; /* not from our client */
+
 	debug_cond(DEBUG_DEV_PKT, "input: \"%*.*s\"\n", len, len, pkt);
 
 	if (input_size == sizeof(input_buffer))
@@ -131,47 +206,39 @@ static void nc_send_packet(const char *buf, int len)
 	}
 
 	if (eth->state != ETH_STATE_ACTIVE) {
-		if (eth_init(gd->bd) < 0)
-			return;
+		if (eth_is_on_demand_init()) {
+			if (eth_init(gd->bd) < 0)
+				return;
+			eth_set_last_protocol(NETCONS);
+		} else
+			eth_init_state_only(gd->bd);
+
 		inited = 1;
 	}
 	pkt = (uchar *)NetTxPacket + NetEthHdrSize() + IP_UDP_HDR_SIZE;
 	memcpy(pkt, buf, len);
 	ether = nc_ether;
 	ip = nc_ip;
-	NetSendUDPPacket(ether, ip, nc_port, nc_port, len);
+	NetSendUDPPacket(ether, ip, nc_out_port, nc_in_port, len);
 
-	if (inited)
-		eth_halt();
+	if (inited) {
+		if (eth_is_on_demand_init())
+			eth_halt();
+		else
+			eth_halt_state_only();
+	}
 }
 
 static int nc_start(void)
 {
-	int netmask, our_ip;
+	int retval;
 
-	nc_port = 6666;		/* default port */
+	nc_out_port = 6666; /* default port */
+	nc_in_port = nc_out_port;
 
-	if (getenv("ncip")) {
-		char *p;
-
-		nc_ip = getenv_IPaddr("ncip");
-		if (!nc_ip)
-			return -1;	/* ncip is 0.0.0.0 */
-		p = strchr(getenv("ncip"), ':');
-		if (p != NULL)
-			nc_port = simple_strtoul(p + 1, NULL, 10);
-	} else
-		nc_ip = ~0;		/* ncip is not set */
-
-	our_ip = getenv_IPaddr("ipaddr");
-	netmask = getenv_IPaddr("netmask");
-
-	if (nc_ip == ~0 ||				/* 255.255.255.255 */
-	    ((netmask & our_ip) == (netmask & nc_ip) &&	/* on the same net */
-	    (netmask | nc_ip) == ~0))		/* broadcast to our net */
-		memset(nc_ether, 0xff, sizeof(nc_ether));
-	else
-		memset(nc_ether, 0, sizeof(nc_ether));	/* force arp request */
+	retval = refresh_settings_from_env();
+	if (retval != 0)
+		return retval;
 
 	/*
 	 * Initialize the static IP settings and buffer pointers
@@ -203,7 +270,7 @@ static void nc_puts(const char *s)
 
 	len = strlen(s);
 	while (len) {
-		int send_len = min(len, 512);
+		int send_len = min(len, sizeof(input_buffer));
 		nc_send_packet(s, send_len);
 		len -= send_len;
 		s += send_len;

drivers/net/npe/Makefile

@@ -25,7 +25,7 @@ include $(TOPDIR)/config.mk
 
 LIB := $(obj)libnpe.o
 
-LOCAL_CFLAGS  += -I$(TOPDIR)/arch/arm/cpu/ixp/npe/include -DCONFIG_IXP425_COMPONENT_ETHDB -D__linux
+LOCAL_CFLAGS  += -I$(TOPDIR)/drivers/net/npe/include -DCONFIG_IXP425_COMPONENT_ETHDB -D__linux
 CFLAGS  += $(LOCAL_CFLAGS)
 CPPFLAGS  += $(LOCAL_CFLAGS) # needed for depend
 HOSTCFLAGS  += $(LOCAL_CFLAGS)