#include <linux/bitops.h>
#include <linux/io.h>
#include <linux/uaccess.h>
+#include <linux/davinci_emac.h>
#include <asm/irq.h>
#include <asm/page.h>
-#include <mach/emac.h>
-
static int debug_level;
module_param(debug_level, int, 0);
MODULE_PARM_DESC(debug_level, "DaVinci EMAC debug level (NETIF_MSG bits)");
void __iomem *ctrl_base;
void __iomem *emac_ctrl_ram;
u32 ctrl_ram_size;
+ u32 hw_ram_addr;
struct emac_txch *txch[EMAC_DEF_MAX_TX_CH];
struct emac_rxch *rxch[EMAC_DEF_MAX_RX_CH];
u32 link; /* 1=link on, 0=link off */
struct mii_bus *mii_bus;
struct phy_device *phydev;
spinlock_t lock;
+ /*platform specific members*/
+ void (*int_enable) (void);
+ void (*int_disable) (void);
};
/* clock frequency for EMAC */
static unsigned long emac_bus_frequency;
static unsigned long mdio_max_freq;
-/* EMAC internal utility function */
-static inline u32 emac_virt_to_phys(void __iomem *addr)
-{
- return (u32 __force) io_v2p(addr);
-}
+#define emac_virt_to_phys(addr, priv) \
+ (((u32 __force)(addr) - (u32 __force)(priv->emac_ctrl_ram)) \
+ + priv->hw_ram_addr)
/* Cache macros - Packet buffers would be from skb pool which is cached */
#define EMAC_VIRT_NOCACHE(addr) (addr)
} else {
mbp_enable = (mbp_enable & ~EMAC_MBP_RXPROMISC);
if ((ndev->flags & IFF_ALLMULTI) ||
- (ndev->mc_count > EMAC_DEF_MAX_MULTICAST_ADDRESSES)) {
+ netdev_mc_count(ndev) > EMAC_DEF_MAX_MULTICAST_ADDRESSES) {
mbp_enable = (mbp_enable | EMAC_MBP_RXMCAST);
emac_add_mcast(priv, EMAC_ALL_MULTI_SET, NULL);
}
- if (ndev->mc_count > 0) {
+ if (!netdev_mc_empty(ndev)) {
struct dev_mc_list *mc_ptr;
mbp_enable = (mbp_enable | EMAC_MBP_RXMCAST);
emac_add_mcast(priv, EMAC_ALL_MULTI_CLR, NULL);
/* program multicast address list into EMAC hardware */
- for (mc_ptr = ndev->mc_list; mc_ptr;
- mc_ptr = mc_ptr->next) {
+ netdev_for_each_mc_addr(mc_ptr, ndev) {
emac_add_mcast(priv, EMAC_MULTICAST_ADD,
- (u8 *)mc_ptr->dmi_addr);
+ (u8 *) mc_ptr->dmi_addr);
}
} else {
mbp_enable = (mbp_enable & ~EMAC_MBP_RXMCAST);
emac_ctrl_write(EMAC_DM646X_CMRXINTEN, 0x0);
emac_ctrl_write(EMAC_DM646X_CMTXINTEN, 0x0);
/* NOTE: Rx Threshold and Misc interrupts are not disabled */
+ if (priv->int_disable)
+ priv->int_disable();
local_irq_restore(flags);
static void emac_int_enable(struct emac_priv *priv)
{
if (priv->version == EMAC_VERSION_2) {
+ if (priv->int_enable)
+ priv->int_enable();
+
emac_ctrl_write(EMAC_DM646X_CMRXINTEN, 0xff);
emac_ctrl_write(EMAC_DM646X_CMTXINTEN, 0xff);
curr_bd = txch->active_queue_head;
if (NULL == curr_bd) {
emac_write(EMAC_TXCP(ch),
- emac_virt_to_phys(txch->last_hw_bdprocessed));
+ emac_virt_to_phys(txch->last_hw_bdprocessed, priv));
txch->no_active_pkts++;
spin_unlock_irqrestore(&priv->tx_lock, flags);
return 0;
while ((curr_bd) &&
((frame_status & EMAC_CPPI_OWNERSHIP_BIT) == 0) &&
(pkts_processed < budget)) {
- emac_write(EMAC_TXCP(ch), emac_virt_to_phys(curr_bd));
+ emac_write(EMAC_TXCP(ch), emac_virt_to_phys(curr_bd, priv));
txch->active_queue_head = curr_bd->next;
if (frame_status & EMAC_CPPI_EOQ_BIT) {
if (curr_bd->next) { /* misqueued packet */
txch->active_queue_tail = curr_bd;
if (1 != txch->queue_active) {
emac_write(EMAC_TXHDP(ch),
- emac_virt_to_phys(curr_bd));
+ emac_virt_to_phys(curr_bd, priv));
txch->queue_active = 1;
}
++txch->queue_reinit;
tail_bd->next = curr_bd;
txch->active_queue_tail = curr_bd;
tail_bd = EMAC_VIRT_NOCACHE(tail_bd);
- tail_bd->h_next = (int)emac_virt_to_phys(curr_bd);
+ tail_bd->h_next = (int)emac_virt_to_phys(curr_bd, priv);
frame_status = tail_bd->mode;
if (frame_status & EMAC_CPPI_EOQ_BIT) {
- emac_write(EMAC_TXHDP(ch), emac_virt_to_phys(curr_bd));
+ emac_write(EMAC_TXHDP(ch),
+ emac_virt_to_phys(curr_bd, priv));
frame_status &= ~(EMAC_CPPI_EOQ_BIT);
tail_bd->mode = frame_status;
++txch->end_of_queue_add;
}
/* populate the hardware descriptor */
- curr_bd->h_next = emac_virt_to_phys(rxch->active_queue_head);
+ curr_bd->h_next = emac_virt_to_phys(rxch->active_queue_head,
+ priv);
/* FIXME buff_ptr = dma_map_single(... data_ptr ...) */
curr_bd->buff_ptr = virt_to_phys(curr_bd->data_ptr);
curr_bd->off_b_len = rxch->buf_size;
rxch->active_queue_tail = curr_bd;
if (0 != rxch->queue_active) {
emac_write(EMAC_RXHDP(ch),
- emac_virt_to_phys(rxch->active_queue_head));
+ emac_virt_to_phys(rxch->active_queue_head, priv));
rxch->queue_active = 1;
}
} else {
rxch->active_queue_tail = curr_bd;
tail_bd->next = curr_bd;
tail_bd = EMAC_VIRT_NOCACHE(tail_bd);
- tail_bd->h_next = emac_virt_to_phys(curr_bd);
+ tail_bd->h_next = emac_virt_to_phys(curr_bd, priv);
frame_status = tail_bd->mode;
if (frame_status & EMAC_CPPI_EOQ_BIT) {
emac_write(EMAC_RXHDP(ch),
- emac_virt_to_phys(curr_bd));
+ emac_virt_to_phys(curr_bd, priv));
frame_status &= ~(EMAC_CPPI_EOQ_BIT);
tail_bd->mode = frame_status;
++rxch->end_of_queue_add;
curr_pkt->num_bufs = 1;
curr_pkt->pkt_length =
(frame_status & EMAC_RX_BD_PKT_LENGTH_MASK);
- emac_write(EMAC_RXCP(ch), emac_virt_to_phys(curr_bd));
+ emac_write(EMAC_RXCP(ch), emac_virt_to_phys(curr_bd, priv));
++rxch->processed_bd;
last_bd = curr_bd;
curr_bd = last_bd->next;
if (curr_bd) {
++rxch->mis_queued_packets;
emac_write(EMAC_RXHDP(ch),
- emac_virt_to_phys(curr_bd));
+ emac_virt_to_phys(curr_bd, priv));
} else {
++rxch->end_of_queue;
rxch->queue_active = 0;
emac_write(EMAC_RXINTMASKSET, BIT(ch));
rxch->queue_active = 1;
emac_write(EMAC_RXHDP(ch),
- emac_virt_to_phys(rxch->active_queue_head));
+ emac_virt_to_phys(rxch->active_queue_head, priv));
}
/* Enable MII */
unsigned int clk_div;
int mdio_bus_freq = emac_bus_frequency;
- if (mdio_max_freq & mdio_bus_freq)
+ if (mdio_max_freq && mdio_bus_freq)
clk_div = ((mdio_bus_freq / mdio_max_freq) - 1);
else
clk_div = 0xFF;
pdata = pdev->dev.platform_data;
if (!pdata) {
- printk(KERN_ERR "DaVinci EMAC: No platfrom data\n");
+ printk(KERN_ERR "DaVinci EMAC: No platform data\n");
return -ENODEV;
}
priv->phy_mask = pdata->phy_mask;
priv->rmii_en = pdata->rmii_en;
priv->version = pdata->version;
+ priv->int_enable = pdata->interrupt_enable;
+ priv->int_disable = pdata->interrupt_disable;
+
emac_dev = &ndev->dev;
/* Get EMAC platform data */
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
priv->emac_base_phys = res->start + pdata->ctrl_reg_offset;
size = res->end - res->start + 1;
if (!request_mem_region(res->start, size, ndev->name)) {
- dev_err(emac_dev, "DaVinci EMAC: failed request_mem_region() \
- for regs\n");
+ dev_err(emac_dev, "DaVinci EMAC: failed request_mem_region() for regs\n");
rc = -ENXIO;
goto probe_quit;
}
priv->ctrl_ram_size = pdata->ctrl_ram_size;
priv->emac_ctrl_ram = priv->remap_addr + pdata->ctrl_ram_offset;
+ if (pdata->hw_ram_addr)
+ priv->hw_ram_addr = pdata->hw_ram_addr;
+ else
+ priv->hw_ram_addr = (u32 __force)res->start +
+ pdata->ctrl_ram_offset;
+
res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
if (!res) {
dev_err(emac_dev, "DaVinci EMAC: Error getting irq res\n");
SET_ETHTOOL_OPS(ndev, ðtool_ops);
netif_napi_add(ndev, &priv->napi, emac_poll, EMAC_POLL_WEIGHT);
+ clk_enable(emac_clk);
+
/* register the network device */
SET_NETDEV_DEV(ndev, &pdev->dev);
rc = register_netdev(ndev);
goto netdev_reg_err;
}
- clk_enable(emac_clk);
/* MII/Phy intialisation, mdio bus registration */
emac_mii = mdiobus_alloc();
netdev_reg_err:
mdio_alloc_err:
+ clk_disable(emac_clk);
no_irq_res:
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
release_mem_region(res->start, res->end - res->start + 1);
return 0;
}
+static
+int davinci_emac_suspend(struct platform_device *pdev, pm_message_t state)
+{
+ struct net_device *dev = platform_get_drvdata(pdev);
+
+ if (netif_running(dev))
+ emac_dev_stop(dev);
+
+ clk_disable(emac_clk);
+
+ return 0;
+}
+
+static int davinci_emac_resume(struct platform_device *pdev)
+{
+ struct net_device *dev = platform_get_drvdata(pdev);
+
+ clk_enable(emac_clk);
+
+ if (netif_running(dev))
+ emac_dev_open(dev);
+
+ return 0;
+}
+
/**
* davinci_emac_driver: EMAC platform driver structure
- *
- * We implement only probe and remove functions - suspend/resume and
- * others not supported by this module
*/
static struct platform_driver davinci_emac_driver = {
.driver = {
},
.probe = davinci_emac_probe,
.remove = __devexit_p(davinci_emac_remove),
+ .suspend = davinci_emac_suspend,
+ .resume = davinci_emac_resume,
};
/**
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff