nds32: eth: Support ftmac100 DM.
Support Andestech eth ftmac100 device tree flow on AG101P/AE3XX platform.
Verification:
Boot linux kernel via dhcp and bootm ok.
NDS32 # setenv bootm_size 0x2000000;setenv fdt_high 0x1f00000;
NDS32 # dhcp 0x600000 10.0.4.97:boomimage-310y-ae300-spi.bin
BOOTP broadcast 1
BOOTP broadcast 2
BOOTP broadcast 3
BOOTP broadcast 4
DHCP client bound to address 10.0.4.178 (4899 ms)
Using mac@e0100000 device
TFTP from server 10.0.4.97; our IP address is 10.0.4.178
Filename 'boomimage-310y-ae300-spi.bin'.
Load address: 0x600000
Loading: #################################################################
#################################################################
#################################################################
...
...
###################################
233.4 KiB/s
done
Bytes transferred = 13872076 (d3abcc hex)
NDS32 # dhcp 0x2000000 10.0.4.97:ae300.dtb
BOOTP broadcast 1
BOOTP broadcast 2
BOOTP broadcast 3
BOOTP broadcast 4
DHCP client bound to address 10.0.4.178 (4592 ms)
Using mac@e0100000 device
TFTP from server 10.0.4.97; our IP address is 10.0.4.178
Filename 'ae300.dtb'.
Load address: 0x2000000
Loading: #
82 KiB/s
done
Bytes transferred = 2378 (94a hex)
NDS32 # bootm 0x600000 - 0x2000000
Image Name:
Created: 2017-03-22 6:52:03 UTC
Image Type: NDS32 Linux Kernel Image (uncompressed)
Data Size: 13872012 Bytes = 13.2 MiB
Load Address: 0000c000
Entry Point: 0000c000
Verifying Checksum ... OK
Booting using the fdt blob at 0x2000000
Loading Kernel Image ... OK
Loading Device Tree to 01efc000, end 01eff949 ... OK
Linux version 3.10.102-20375-gb0034c1-dirty (rick@app09)
(gcc version 4.9.3 (2016-07-06_nds32le-linux-glibc-v3_experimental) )
#293 PREEMPT Wed Mar 22 14:49:28 CST 2017
CPU: NDS32 N13, AndesCore ID(wb), CPU_VER 0x0d11103f(id 13, rev 17, cfg 4159)
...
...
Signed-off-by: rick <rick@andestech.com>
diff --git a/drivers/net/ftmac100.c b/drivers/net/ftmac100.c
index 1fc7da9..b79c467 100644
--- a/drivers/net/ftmac100.c
+++ b/drivers/net/ftmac100.c
@@ -11,24 +11,29 @@
#include <common.h>
#include <malloc.h>
#include <net.h>
-#include <asm/io.h>
+#include <linux/io.h>
#include "ftmac100.h"
-
+#ifdef CONFIG_DM_ETH
+#include <dm.h>
+DECLARE_GLOBAL_DATA_PTR;
+#endif
#define ETH_ZLEN 60
struct ftmac100_data {
struct ftmac100_txdes txdes[1];
struct ftmac100_rxdes rxdes[PKTBUFSRX];
int rx_index;
+ const char *name;
+ phys_addr_t iobase;
};
/*
* Reset MAC
*/
-static void ftmac100_reset (struct eth_device *dev)
+static void ftmac100_reset(struct ftmac100_data *priv)
{
- struct ftmac100 *ftmac100 = (struct ftmac100 *)dev->iobase;
+ struct ftmac100 *ftmac100 = (struct ftmac100 *)priv->iobase;
debug ("%s()\n", __func__);
@@ -41,9 +46,10 @@
/*
* Set MAC address
*/
-static void ftmac100_set_mac (struct eth_device *dev, const unsigned char *mac)
+static void ftmac100_set_mac(struct ftmac100_data *priv ,
+ const unsigned char *mac)
{
- struct ftmac100 *ftmac100 = (struct ftmac100 *)dev->iobase;
+ struct ftmac100 *ftmac100 = (struct ftmac100 *)priv->iobase;
unsigned int maddr = mac[0] << 8 | mac[1];
unsigned int laddr = mac[2] << 24 | mac[3] << 16 | mac[4] << 8 | mac[5];
@@ -53,29 +59,22 @@
writel (laddr, &ftmac100->mac_ladr);
}
-static void ftmac100_set_mac_from_env (struct eth_device *dev)
-{
- eth_getenv_enetaddr ("ethaddr", dev->enetaddr);
-
- ftmac100_set_mac (dev, dev->enetaddr);
-}
-
/*
- * disable transmitter, receiver
+ * Disable MAC
*/
-static void ftmac100_halt (struct eth_device *dev)
+static void _ftmac100_halt(struct ftmac100_data *priv)
{
- struct ftmac100 *ftmac100 = (struct ftmac100 *)dev->iobase;
-
+ struct ftmac100 *ftmac100 = (struct ftmac100 *)priv->iobase;
debug ("%s()\n", __func__);
-
writel (0, &ftmac100->maccr);
}
-static int ftmac100_init (struct eth_device *dev, bd_t *bd)
+/*
+ * Initialize MAC
+ */
+static int _ftmac100_init(struct ftmac100_data *priv, unsigned char enetaddr[6])
{
- struct ftmac100 *ftmac100 = (struct ftmac100 *)dev->iobase;
- struct ftmac100_data *priv = dev->priv;
+ struct ftmac100 *ftmac100 = (struct ftmac100 *)priv->iobase;
struct ftmac100_txdes *txdes = priv->txdes;
struct ftmac100_rxdes *rxdes = priv->rxdes;
unsigned int maccr;
@@ -83,11 +82,11 @@
debug ("%s()\n", __func__);
- ftmac100_reset (dev);
+ ftmac100_reset(priv);
/* set the ethernet address */
+ ftmac100_set_mac(priv, enetaddr);
- ftmac100_set_mac_from_env (dev);
/* disable all interrupts */
@@ -136,25 +135,37 @@
}
/*
- * Get a data block via Ethernet
+ * Free receiving buffer
*/
-static int ftmac100_recv (struct eth_device *dev)
+static int _ftmac100_free_pkt(struct ftmac100_data *priv)
{
- struct ftmac100_data *priv = dev->priv;
+ struct ftmac100_rxdes *curr_des;
+ curr_des = &priv->rxdes[priv->rx_index];
+ /* release buffer to DMA */
+ curr_des->rxdes0 |= FTMAC100_RXDES0_RXDMA_OWN;
+ priv->rx_index = (priv->rx_index + 1) % PKTBUFSRX;
+ return 0;
+}
+
+/*
+ * Receive a data block via Ethernet
+ */
+static int __ftmac100_recv(struct ftmac100_data *priv)
+{
struct ftmac100_rxdes *curr_des;
unsigned short rxlen;
curr_des = &priv->rxdes[priv->rx_index];
if (curr_des->rxdes0 & FTMAC100_RXDES0_RXDMA_OWN)
- return -1;
+ return 0;
if (curr_des->rxdes0 & (FTMAC100_RXDES0_RX_ERR |
FTMAC100_RXDES0_CRC_ERR |
FTMAC100_RXDES0_FTL |
FTMAC100_RXDES0_RUNT |
FTMAC100_RXDES0_RX_ODD_NB)) {
- return -1;
+ return 0;
}
rxlen = FTMAC100_RXDES0_RFL (curr_des->rxdes0);
@@ -162,26 +173,15 @@
debug ("%s(): RX buffer %d, %x received\n",
__func__, priv->rx_index, rxlen);
- /* pass the packet up to the protocol layers. */
-
- net_process_received_packet((void *)curr_des->rxdes2, rxlen);
-
- /* release buffer to DMA */
-
- curr_des->rxdes0 |= FTMAC100_RXDES0_RXDMA_OWN;
-
- priv->rx_index = (priv->rx_index + 1) % PKTBUFSRX;
-
- return 0;
+ return rxlen;
}
/*
* Send a data block via Ethernet
*/
-static int ftmac100_send(struct eth_device *dev, void *packet, int length)
+static int _ftmac100_send(struct ftmac100_data *priv, void *packet, int length)
{
- struct ftmac100 *ftmac100 = (struct ftmac100 *)dev->iobase;
- struct ftmac100_data *priv = dev->priv;
+ struct ftmac100 *ftmac100 = (struct ftmac100 *)priv->iobase;
struct ftmac100_txdes *curr_des = priv->txdes;
ulong start;
@@ -224,25 +224,69 @@
return 0;
}
+#ifndef CONFIG_DM_ETH
+/*
+ * disable transmitter, receiver
+ */
+static void ftmac100_halt(struct eth_device *dev)
+{
+ struct ftmac100_data *priv = dev->priv;
+ return _ftmac100_halt(priv);
+}
+
+static int ftmac100_init(struct eth_device *dev, bd_t *bd)
+{
+ struct ftmac100_data *priv = dev->priv;
+ return _ftmac100_init(priv , dev->enetaddr);
+}
+
+static int _ftmac100_recv(struct ftmac100_data *priv)
+{
+ struct ftmac100_rxdes *curr_des;
+ unsigned short len;
+ curr_des = &priv->rxdes[priv->rx_index];
+ len = __ftmac100_recv(priv);
+ if (len) {
+ /* pass the packet up to the protocol layers. */
+ net_process_received_packet((void *)curr_des->rxdes2, len);
+ _ftmac100_free_pkt(priv);
+ }
+ return len ? 1 : 0;
+}
+
+/*
+ * Get a data block via Ethernet
+ */
+static int ftmac100_recv(struct eth_device *dev)
+{
+ struct ftmac100_data *priv = dev->priv;
+ return _ftmac100_recv(priv);
+}
+
+/*
+ * Send a data block via Ethernet
+ */
+static int ftmac100_send(struct eth_device *dev, void *packet, int length)
+{
+ struct ftmac100_data *priv = dev->priv;
+ return _ftmac100_send(priv , packet , length);
+}
+
int ftmac100_initialize (bd_t *bd)
{
struct eth_device *dev;
struct ftmac100_data *priv;
-
dev = malloc (sizeof *dev);
if (!dev) {
printf ("%s(): failed to allocate dev\n", __func__);
goto out;
}
-
/* Transmit and receive descriptors should align to 16 bytes */
-
priv = memalign (16, sizeof (struct ftmac100_data));
if (!priv) {
printf ("%s(): failed to allocate priv\n", __func__);
goto free_dev;
}
-
memset (dev, 0, sizeof (*dev));
memset (priv, 0, sizeof (*priv));
@@ -253,7 +297,7 @@
dev->send = ftmac100_send;
dev->recv = ftmac100_recv;
dev->priv = priv;
-
+ priv->iobase = dev->iobase;
eth_register (dev);
return 1;
@@ -263,3 +307,135 @@
out:
return 0;
}
+#endif
+
+#ifdef CONFIG_DM_ETH
+static int ftmac100_start(struct udevice *dev)
+{
+ struct eth_pdata *plat = dev_get_platdata(dev);
+ struct ftmac100_data *priv = dev_get_priv(dev);
+
+ return _ftmac100_init(priv, plat->enetaddr);
+}
+
+static void ftmac100_stop(struct udevice *dev)
+{
+ struct ftmac100_data *priv = dev_get_priv(dev);
+ _ftmac100_halt(priv);
+}
+
+static int ftmac100_send(struct udevice *dev, void *packet, int length)
+{
+ struct ftmac100_data *priv = dev_get_priv(dev);
+ int ret;
+ ret = _ftmac100_send(priv , packet , length);
+ return ret ? 0 : -ETIMEDOUT;
+}
+
+static int ftmac100_recv(struct udevice *dev, int flags, uchar **packetp)
+{
+ struct ftmac100_data *priv = dev_get_priv(dev);
+ struct ftmac100_rxdes *curr_des;
+ curr_des = &priv->rxdes[priv->rx_index];
+ int len;
+ len = __ftmac100_recv(priv);
+ if (len)
+ *packetp = (void *)curr_des->rxdes2;
+
+ return len ? len : -EAGAIN;
+}
+
+static int ftmac100_free_pkt(struct udevice *dev, uchar *packet, int length)
+{
+ struct ftmac100_data *priv = dev_get_priv(dev);
+ _ftmac100_free_pkt(priv);
+ return 0;
+}
+
+int ftmac100_read_rom_hwaddr(struct udevice *dev)
+{
+ struct eth_pdata *pdata = dev_get_platdata(dev);
+ eth_getenv_enetaddr("ethaddr", pdata->enetaddr);
+ return 0;
+}
+
+static const char *dtbmacaddr(u32 ifno)
+{
+ int node, len;
+ char enet[16];
+ const char *mac;
+ const char *path;
+ if (gd->fdt_blob == NULL) {
+ printf("%s: don't have a valid gd->fdt_blob!\n", __func__);
+ return NULL;
+ }
+ node = fdt_path_offset(gd->fdt_blob, "/aliases");
+ if (node < 0)
+ return NULL;
+
+ sprintf(enet, "ethernet%d", ifno);
+ path = fdt_getprop(gd->fdt_blob, node, enet, NULL);
+ if (!path) {
+ printf("no alias for %s\n", enet);
+ return NULL;
+ }
+ node = fdt_path_offset(gd->fdt_blob, path);
+ mac = fdt_getprop(gd->fdt_blob, node, "mac-address", &len);
+ if (mac && is_valid_ethaddr((u8 *)mac))
+ return mac;
+
+ return NULL;
+}
+
+static int ftmac100_ofdata_to_platdata(struct udevice *dev)
+{
+ struct ftmac100_data *priv = dev_get_priv(dev);
+ struct eth_pdata *pdata = dev_get_platdata(dev);
+ const char *mac;
+ pdata->iobase = dev_get_addr(dev);
+ priv->iobase = pdata->iobase;
+ mac = dtbmacaddr(0);
+ if (mac)
+ memcpy(pdata->enetaddr , mac , 6);
+
+ return 0;
+}
+
+static int ftmac100_probe(struct udevice *dev)
+{
+ struct ftmac100_data *priv = dev_get_priv(dev);
+ priv->name = dev->name;
+ return 0;
+}
+
+static int ftmac100_bind(struct udevice *dev)
+{
+ return device_set_name(dev, dev->name);
+}
+
+static const struct eth_ops ftmac100_ops = {
+ .start = ftmac100_start,
+ .send = ftmac100_send,
+ .recv = ftmac100_recv,
+ .stop = ftmac100_stop,
+ .free_pkt = ftmac100_free_pkt,
+};
+
+static const struct udevice_id ftmac100_ids[] = {
+ { .compatible = "andestech,atmac100" },
+ { }
+};
+
+U_BOOT_DRIVER(ftmac100) = {
+ .name = "nds32_mac",
+ .id = UCLASS_ETH,
+ .of_match = ftmac100_ids,
+ .bind = ftmac100_bind,
+ .ofdata_to_platdata = ftmac100_ofdata_to_platdata,
+ .probe = ftmac100_probe,
+ .ops = &ftmac100_ops,
+ .priv_auto_alloc_size = sizeof(struct ftmac100_data),
+ .platdata_auto_alloc_size = sizeof(struct eth_pdata),
+ .flags = DM_FLAG_ALLOC_PRIV_DMA,
+};
+#endif