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netdev: octeon_mgmt: Convert to use device tree.

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The device tree will supply the register bank base addresses, make
register addressing relative to those.  PHY connection is now
described by the device tree.

The OCTEON_IRQ_MII{0,1} symbols are also removed as they are now
unused and interfere with the irq_domain used for device tree irq
mapping.

Signed-off-by: David Daney <david.daney@cavium.com>
Acked-by: David S. Miller <davem@davemloft.net>
Cc: linux-mips@linux-mips.org
Cc: devicetree-discuss@lists.ozlabs.org
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/3941/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
David Daney 2012-07-05 18:12:39 +02:00 committed by Ralf Baechle
parent 2fd46f47be
commit 368bec0d4a
3 changed files with 208 additions and 170 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/mips/cavium-octeon/octeon-irq.c
View File

@ -1197,7 +1197,6 @@ static void __init octeon_irq_init_ciu(void)
octeon_irq_set_ciu_mapping(i + OCTEON_IRQ_TIMER0, 0, i + 52, chip, handle_edge_irq);
octeon_irq_set_ciu_mapping(OCTEON_IRQ_USB0, 0, 56, chip, handle_level_irq);
octeon_irq_set_ciu_mapping(OCTEON_IRQ_MII0, 0, 62, chip, handle_level_irq);
octeon_irq_set_ciu_mapping(OCTEON_IRQ_BOOTDMA, 0, 63, chip, handle_level_irq);
/* CIU_1 */
@ -1206,7 +1205,6 @@ static void __init octeon_irq_init_ciu(void)
octeon_irq_set_ciu_mapping(OCTEON_IRQ_UART2, 1, 16, chip, handle_level_irq);
octeon_irq_set_ciu_mapping(OCTEON_IRQ_USB1, 1, 17, chip, handle_level_irq);
octeon_irq_set_ciu_mapping(OCTEON_IRQ_MII1, 1, 18, chip, handle_level_irq);
gpio_node = of_find_compatible_node(NULL, NULL, "cavium,octeon-3860-gpio");
if (gpio_node) {

62
arch/mips/cavium-octeon/octeon-platform.c
View File

@ -168,68 +168,6 @@ out:
}
device_initcall(octeon_rng_device_init);
/* Octeon mgmt port Ethernet interface. */
static int __init octeon_mgmt_device_init(void)
{
struct platform_device *pd;
int ret = 0;
int port, num_ports;
struct resource mgmt_port_resource = {
.flags = IORESOURCE_IRQ,
.start = -1,
.end = -1
};
if (!OCTEON_IS_MODEL(OCTEON_CN56XX) && !OCTEON_IS_MODEL(OCTEON_CN52XX))
return 0;
if (OCTEON_IS_MODEL(OCTEON_CN56XX))
num_ports = 1;
else
num_ports = 2;
for (port = 0; port < num_ports; port++) {
pd = platform_device_alloc("octeon_mgmt", port);
if (!pd) {
ret = -ENOMEM;
goto out;
}
/* No DMA restrictions */
pd->dev.coherent_dma_mask = DMA_BIT_MASK(64);
pd->dev.dma_mask = &pd->dev.coherent_dma_mask;
switch (port) {
case 0:
mgmt_port_resource.start = OCTEON_IRQ_MII0;
break;
case 1:
mgmt_port_resource.start = OCTEON_IRQ_MII1;
break;
default:
BUG();
}
mgmt_port_resource.end = mgmt_port_resource.start;
ret = platform_device_add_resources(pd, &mgmt_port_resource, 1);
if (ret)
goto fail;
ret = platform_device_add(pd);
if (ret)
goto fail;
}
return ret;
fail:
platform_device_put(pd);
out:
return ret;
}
device_initcall(octeon_mgmt_device_init);
#ifdef CONFIG_USB
static int __init octeon_ehci_device_init(void)

314
drivers/net/ethernet/octeon/octeon_mgmt.c
View File

@ -6,19 +6,21 @@
* Copyright (C) 2009 Cavium Networks
*/
#include <linux/capability.h>
#include <linux/dma-mapping.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/netdevice.h>
#include <linux/dma-mapping.h>
#include <linux/etherdevice.h>
#include <linux/if.h>
#include <linux/capability.h>
#include <linux/interrupt.h>
#include <linux/netdevice.h>
#include <linux/spinlock.h>
#include <linux/if_vlan.h>
#include <linux/of_mdio.h>
#include <linux/module.h>
#include <linux/of_net.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/phy.h>
#include <linux/spinlock.h>
#include <linux/io.h>
#include <asm/octeon/octeon.h>
#include <asm/octeon/cvmx-mixx-defs.h>
@ -58,8 +60,56 @@ union mgmt_port_ring_entry {
} s;
};
#define MIX_ORING1 0x0
#define MIX_ORING2 0x8
#define MIX_IRING1 0x10
#define MIX_IRING2 0x18
#define MIX_CTL 0x20
#define MIX_IRHWM 0x28
#define MIX_IRCNT 0x30
#define MIX_ORHWM 0x38
#define MIX_ORCNT 0x40
#define MIX_ISR 0x48
#define MIX_INTENA 0x50
#define MIX_REMCNT 0x58
#define MIX_BIST 0x78
#define AGL_GMX_PRT_CFG 0x10
#define AGL_GMX_RX_FRM_CTL 0x18
#define AGL_GMX_RX_FRM_MAX 0x30
#define AGL_GMX_RX_JABBER 0x38
#define AGL_GMX_RX_STATS_CTL 0x50
#define AGL_GMX_RX_STATS_PKTS_DRP 0xb0
#define AGL_GMX_RX_STATS_OCTS_DRP 0xb8
#define AGL_GMX_RX_STATS_PKTS_BAD 0xc0
#define AGL_GMX_RX_ADR_CTL 0x100
#define AGL_GMX_RX_ADR_CAM_EN 0x108
#define AGL_GMX_RX_ADR_CAM0 0x180
#define AGL_GMX_RX_ADR_CAM1 0x188
#define AGL_GMX_RX_ADR_CAM2 0x190
#define AGL_GMX_RX_ADR_CAM3 0x198
#define AGL_GMX_RX_ADR_CAM4 0x1a0
#define AGL_GMX_RX_ADR_CAM5 0x1a8
#define AGL_GMX_TX_STATS_CTL 0x268
#define AGL_GMX_TX_CTL 0x270
#define AGL_GMX_TX_STAT0 0x280
#define AGL_GMX_TX_STAT1 0x288
#define AGL_GMX_TX_STAT2 0x290
#define AGL_GMX_TX_STAT3 0x298
#define AGL_GMX_TX_STAT4 0x2a0
#define AGL_GMX_TX_STAT5 0x2a8
#define AGL_GMX_TX_STAT6 0x2b0
#define AGL_GMX_TX_STAT7 0x2b8
#define AGL_GMX_TX_STAT8 0x2c0
#define AGL_GMX_TX_STAT9 0x2c8
struct octeon_mgmt {
struct net_device *netdev;
u64 mix;
u64 agl;
int port;
int irq;
u64 *tx_ring;
@ -85,31 +135,34 @@ struct octeon_mgmt {
struct napi_struct napi;
struct tasklet_struct tx_clean_tasklet;
struct phy_device *phydev;
struct device_node *phy_np;
resource_size_t mix_phys;
resource_size_t mix_size;
resource_size_t agl_phys;
resource_size_t agl_size;
};
static void octeon_mgmt_set_rx_irq(struct octeon_mgmt *p, int enable)
{
int port = p->port;
union cvmx_mixx_intena mix_intena;
unsigned long flags;
spin_lock_irqsave(&p->lock, flags);
mix_intena.u64 = cvmx_read_csr(CVMX_MIXX_INTENA(port));
mix_intena.u64 = cvmx_read_csr(p->mix + MIX_INTENA);
mix_intena.s.ithena = enable ? 1 : 0;
cvmx_write_csr(CVMX_MIXX_INTENA(port), mix_intena.u64);
cvmx_write_csr(p->mix + MIX_INTENA, mix_intena.u64);
spin_unlock_irqrestore(&p->lock, flags);
}
static void octeon_mgmt_set_tx_irq(struct octeon_mgmt *p, int enable)
{
int port = p->port;
union cvmx_mixx_intena mix_intena;
unsigned long flags;
spin_lock_irqsave(&p->lock, flags);
mix_intena.u64 = cvmx_read_csr(CVMX_MIXX_INTENA(port));
mix_intena.u64 = cvmx_read_csr(p->mix + MIX_INTENA);
mix_intena.s.othena = enable ? 1 : 0;
cvmx_write_csr(CVMX_MIXX_INTENA(port), mix_intena.u64);
cvmx_write_csr(p->mix + MIX_INTENA, mix_intena.u64);
spin_unlock_irqrestore(&p->lock, flags);
}
@ -146,7 +199,6 @@ static unsigned int ring_size_to_bytes(unsigned int ring_size)
static void octeon_mgmt_rx_fill_ring(struct net_device *netdev)
{
struct octeon_mgmt *p = netdev_priv(netdev);
int port = p->port;
while (p->rx_current_fill < ring_max_fill(OCTEON_MGMT_RX_RING_SIZE)) {
unsigned int size;
@ -177,24 +229,23 @@ static void octeon_mgmt_rx_fill_ring(struct net_device *netdev)
(p->rx_next_fill + 1) % OCTEON_MGMT_RX_RING_SIZE;
p->rx_current_fill++;
/* Ring the bell. */
cvmx_write_csr(CVMX_MIXX_IRING2(port), 1);
cvmx_write_csr(p->mix + MIX_IRING2, 1);
}
}
static void octeon_mgmt_clean_tx_buffers(struct octeon_mgmt *p)
{
int port = p->port;
union cvmx_mixx_orcnt mix_orcnt;
union mgmt_port_ring_entry re;
struct sk_buff *skb;
int cleaned = 0;
unsigned long flags;
mix_orcnt.u64 = cvmx_read_csr(CVMX_MIXX_ORCNT(port));
mix_orcnt.u64 = cvmx_read_csr(p->mix + MIX_ORCNT);
while (mix_orcnt.s.orcnt) {
spin_lock_irqsave(&p->tx_list.lock, flags);
mix_orcnt.u64 = cvmx_read_csr(CVMX_MIXX_ORCNT(port));
mix_orcnt.u64 = cvmx_read_csr(p->mix + MIX_ORCNT);
if (mix_orcnt.s.orcnt == 0) {
spin_unlock_irqrestore(&p->tx_list.lock, flags);
@ -214,7 +265,7 @@ static void octeon_mgmt_clean_tx_buffers(struct octeon_mgmt *p)
mix_orcnt.s.orcnt = 1;
/* Acknowledge to hardware that we have the buffer. */
cvmx_write_csr(CVMX_MIXX_ORCNT(port), mix_orcnt.u64);
cvmx_write_csr(p->mix + MIX_ORCNT, mix_orcnt.u64);
p->tx_current_fill--;
spin_unlock_irqrestore(&p->tx_list.lock, flags);
@ -224,7 +275,7 @@ static void octeon_mgmt_clean_tx_buffers(struct octeon_mgmt *p)
dev_kfree_skb_any(skb);
cleaned++;
mix_orcnt.u64 = cvmx_read_csr(CVMX_MIXX_ORCNT(port));
mix_orcnt.u64 = cvmx_read_csr(p->mix + MIX_ORCNT);
}
if (cleaned && netif_queue_stopped(p->netdev))
@ -241,13 +292,12 @@ static void octeon_mgmt_clean_tx_tasklet(unsigned long arg)
static void octeon_mgmt_update_rx_stats(struct net_device *netdev)
{
struct octeon_mgmt *p = netdev_priv(netdev);
int port = p->port;
unsigned long flags;
u64 drop, bad;
/* These reads also clear the count registers. */
drop = cvmx_read_csr(CVMX_AGL_GMX_RXX_STATS_PKTS_DRP(port));
bad = cvmx_read_csr(CVMX_AGL_GMX_RXX_STATS_PKTS_BAD(port));
drop = cvmx_read_csr(p->agl + AGL_GMX_RX_STATS_PKTS_DRP);
bad = cvmx_read_csr(p->agl + AGL_GMX_RX_STATS_PKTS_BAD);
if (drop || bad) {
/* Do an atomic update. */
@ -261,15 +311,14 @@ static void octeon_mgmt_update_rx_stats(struct net_device *netdev)
static void octeon_mgmt_update_tx_stats(struct net_device *netdev)
{
struct octeon_mgmt *p = netdev_priv(netdev);
int port = p->port;
unsigned long flags;
union cvmx_agl_gmx_txx_stat0 s0;
union cvmx_agl_gmx_txx_stat1 s1;
/* These reads also clear the count registers. */
s0.u64 = cvmx_read_csr(CVMX_AGL_GMX_TXX_STAT0(port));
s1.u64 = cvmx_read_csr(CVMX_AGL_GMX_TXX_STAT1(port));
s0.u64 = cvmx_read_csr(p->agl + AGL_GMX_TX_STAT0);
s1.u64 = cvmx_read_csr(p->agl + AGL_GMX_TX_STAT1);
if (s0.s.xsdef || s0.s.xscol || s1.s.scol || s1.s.mcol) {
/* Do an atomic update. */
@ -308,7 +357,6 @@ static u64 octeon_mgmt_dequeue_rx_buffer(struct octeon_mgmt *p,
static int octeon_mgmt_receive_one(struct octeon_mgmt *p)
{
int port = p->port;
struct net_device *netdev = p->netdev;
union cvmx_mixx_ircnt mix_ircnt;
union mgmt_port_ring_entry re;
@ -381,18 +429,17 @@ done:
/* Tell the hardware we processed a packet. */
mix_ircnt.u64 = 0;
mix_ircnt.s.ircnt = 1;
cvmx_write_csr(CVMX_MIXX_IRCNT(port), mix_ircnt.u64);
cvmx_write_csr(p->mix + MIX_IRCNT, mix_ircnt.u64);
return rc;
}
static int octeon_mgmt_receive_packets(struct octeon_mgmt *p, int budget)
{
int port = p->port;
unsigned int work_done = 0;
union cvmx_mixx_ircnt mix_ircnt;
int rc;
mix_ircnt.u64 = cvmx_read_csr(CVMX_MIXX_IRCNT(port));
mix_ircnt.u64 = cvmx_read_csr(p->mix + MIX_IRCNT);
while (work_done < budget && mix_ircnt.s.ircnt) {
rc = octeon_mgmt_receive_one(p);
@ -400,7 +447,7 @@ static int octeon_mgmt_receive_packets(struct octeon_mgmt *p, int budget)
work_done++;
/* Check for more packets. */
mix_ircnt.u64 = cvmx_read_csr(CVMX_MIXX_IRCNT(port));
mix_ircnt.u64 = cvmx_read_csr(p->mix + MIX_IRCNT);
}
octeon_mgmt_rx_fill_ring(p->netdev);
@ -434,16 +481,16 @@ static void octeon_mgmt_reset_hw(struct octeon_mgmt *p)
union cvmx_agl_gmx_bist agl_gmx_bist;
mix_ctl.u64 = 0;
cvmx_write_csr(CVMX_MIXX_CTL(p->port), mix_ctl.u64);
cvmx_write_csr(p->mix + MIX_CTL, mix_ctl.u64);
do {
mix_ctl.u64 = cvmx_read_csr(CVMX_MIXX_CTL(p->port));
mix_ctl.u64 = cvmx_read_csr(p->mix + MIX_CTL);
} while (mix_ctl.s.busy);
mix_ctl.s.reset = 1;
cvmx_write_csr(CVMX_MIXX_CTL(p->port), mix_ctl.u64);
cvmx_read_csr(CVMX_MIXX_CTL(p->port));
cvmx_write_csr(p->mix + MIX_CTL, mix_ctl.u64);
cvmx_read_csr(p->mix + MIX_CTL);
cvmx_wait(64);
mix_bist.u64 = cvmx_read_csr(CVMX_MIXX_BIST(p->port));
mix_bist.u64 = cvmx_read_csr(p->mix + MIX_BIST);
if (mix_bist.u64)
dev_warn(p->dev, "MIX failed BIST (0x%016llx)\n",
(unsigned long long)mix_bist.u64);
@ -474,7 +521,6 @@ static void octeon_mgmt_cam_state_add(struct octeon_mgmt_cam_state *cs,
static void octeon_mgmt_set_rx_filtering(struct net_device *netdev)
{
struct octeon_mgmt *p = netdev_priv(netdev);
int port = p->port;
union cvmx_agl_gmx_rxx_adr_ctl adr_ctl;
union cvmx_agl_gmx_prtx_cfg agl_gmx_prtx;
unsigned long flags;
@ -520,29 +566,29 @@ static void octeon_mgmt_set_rx_filtering(struct net_device *netdev)
spin_lock_irqsave(&p->lock, flags);
/* Disable packet I/O. */
agl_gmx_prtx.u64 = cvmx_read_csr(CVMX_AGL_GMX_PRTX_CFG(port));
agl_gmx_prtx.u64 = cvmx_read_csr(p->agl + AGL_GMX_PRT_CFG);
prev_packet_enable = agl_gmx_prtx.s.en;
agl_gmx_prtx.s.en = 0;
cvmx_write_csr(CVMX_AGL_GMX_PRTX_CFG(port), agl_gmx_prtx.u64);
cvmx_write_csr(p->agl + AGL_GMX_PRT_CFG, agl_gmx_prtx.u64);
adr_ctl.u64 = 0;
adr_ctl.s.cam_mode = cam_mode;
adr_ctl.s.mcst = multicast_mode;
adr_ctl.s.bcst = 1; /* Allow broadcast */
cvmx_write_csr(CVMX_AGL_GMX_RXX_ADR_CTL(port), adr_ctl.u64);
cvmx_write_csr(p->agl + AGL_GMX_RX_ADR_CTL, adr_ctl.u64);
cvmx_write_csr(CVMX_AGL_GMX_RXX_ADR_CAM0(port), cam_state.cam[0]);
cvmx_write_csr(CVMX_AGL_GMX_RXX_ADR_CAM1(port), cam_state.cam[1]);
cvmx_write_csr(CVMX_AGL_GMX_RXX_ADR_CAM2(port), cam_state.cam[2]);
cvmx_write_csr(CVMX_AGL_GMX_RXX_ADR_CAM3(port), cam_state.cam[3]);
cvmx_write_csr(CVMX_AGL_GMX_RXX_ADR_CAM4(port), cam_state.cam[4]);
cvmx_write_csr(CVMX_AGL_GMX_RXX_ADR_CAM5(port), cam_state.cam[5]);
cvmx_write_csr(CVMX_AGL_GMX_RXX_ADR_CAM_EN(port), cam_state.cam_mask);
cvmx_write_csr(p->agl + AGL_GMX_RX_ADR_CAM0, cam_state.cam[0]);
cvmx_write_csr(p->agl + AGL_GMX_RX_ADR_CAM1, cam_state.cam[1]);
cvmx_write_csr(p->agl + AGL_GMX_RX_ADR_CAM2, cam_state.cam[2]);
cvmx_write_csr(p->agl + AGL_GMX_RX_ADR_CAM3, cam_state.cam[3]);
cvmx_write_csr(p->agl + AGL_GMX_RX_ADR_CAM4, cam_state.cam[4]);
cvmx_write_csr(p->agl + AGL_GMX_RX_ADR_CAM5, cam_state.cam[5]);
cvmx_write_csr(p->agl + AGL_GMX_RX_ADR_CAM_EN, cam_state.cam_mask);
/* Restore packet I/O. */
agl_gmx_prtx.s.en = prev_packet_enable;
cvmx_write_csr(CVMX_AGL_GMX_PRTX_CFG(port), agl_gmx_prtx.u64);
cvmx_write_csr(p->agl + AGL_GMX_PRT_CFG, agl_gmx_prtx.u64);
spin_unlock_irqrestore(&p->lock, flags);
}
@ -564,7 +610,6 @@ static int octeon_mgmt_set_mac_address(struct net_device *netdev, void *addr)
static int octeon_mgmt_change_mtu(struct net_device *netdev, int new_mtu)
{
struct octeon_mgmt *p = netdev_priv(netdev);
int port = p->port;
int size_without_fcs = new_mtu + OCTEON_MGMT_RX_HEADROOM;
/*
@ -580,8 +625,8 @@ static int octeon_mgmt_change_mtu(struct net_device *netdev, int new_mtu)
netdev->mtu = new_mtu;
cvmx_write_csr(CVMX_AGL_GMX_RXX_FRM_MAX(port), size_without_fcs);
cvmx_write_csr(CVMX_AGL_GMX_RXX_JABBER(port),
cvmx_write_csr(p->agl + AGL_GMX_RX_FRM_MAX, size_without_fcs);
cvmx_write_csr(p->agl + AGL_GMX_RX_JABBER,
(size_without_fcs + 7) & 0xfff8);
return 0;
@ -591,14 +636,13 @@ static irqreturn_t octeon_mgmt_interrupt(int cpl, void *dev_id)
{
struct net_device *netdev = dev_id;
struct octeon_mgmt *p = netdev_priv(netdev);
int port = p->port;
union cvmx_mixx_isr mixx_isr;
mixx_isr.u64 = cvmx_read_csr(CVMX_MIXX_ISR(port));
mixx_isr.u64 = cvmx_read_csr(p->mix + MIX_ISR);
/* Clear any pending interrupts */
cvmx_write_csr(CVMX_MIXX_ISR(port), mixx_isr.u64);
cvmx_read_csr(CVMX_MIXX_ISR(port));
cvmx_write_csr(p->mix + MIX_ISR, mixx_isr.u64);
cvmx_read_csr(p->mix + MIX_ISR);
if (mixx_isr.s.irthresh) {
octeon_mgmt_disable_rx_irq(p);
@ -629,7 +673,6 @@ static int octeon_mgmt_ioctl(struct net_device *netdev,
static void octeon_mgmt_adjust_link(struct net_device *netdev)
{
struct octeon_mgmt *p = netdev_priv(netdev);
int port = p->port;
union cvmx_agl_gmx_prtx_cfg prtx_cfg;
unsigned long flags;
int link_changed = 0;
@ -640,11 +683,9 @@ static void octeon_mgmt_adjust_link(struct net_device *netdev)
link_changed = 1;
if (p->last_duplex != p->phydev->duplex) {
p->last_duplex = p->phydev->duplex;
prtx_cfg.u64 =
cvmx_read_csr(CVMX_AGL_GMX_PRTX_CFG(port));
prtx_cfg.u64 = cvmx_read_csr(p->agl + AGL_GMX_PRT_CFG);
prtx_cfg.s.duplex = p->phydev->duplex;
cvmx_write_csr(CVMX_AGL_GMX_PRTX_CFG(port),
prtx_cfg.u64);
cvmx_write_csr(p->agl + AGL_GMX_PRT_CFG, prtx_cfg.u64);
}
} else {
if (p->last_link)
@ -670,18 +711,16 @@ static void octeon_mgmt_adjust_link(struct net_device *netdev)
static int octeon_mgmt_init_phy(struct net_device *netdev)
{
struct octeon_mgmt *p = netdev_priv(netdev);
char phy_id[MII_BUS_ID_SIZE + 3];
if (octeon_is_simulation()) {
if (octeon_is_simulation() || p->phy_np == NULL) {
/* No PHYs in the simulator. */
netif_carrier_on(netdev);
return 0;
}
snprintf(phy_id, sizeof(phy_id), PHY_ID_FMT, "mdio-octeon-0", p->port);
p->phydev = phy_connect(netdev, phy_id, octeon_mgmt_adjust_link, 0,
PHY_INTERFACE_MODE_MII);
p->phydev = of_phy_connect(netdev, p->phy_np,
octeon_mgmt_adjust_link, 0,
PHY_INTERFACE_MODE_MII);
if (IS_ERR(p->phydev)) {
p->phydev = NULL;
@ -737,14 +776,14 @@ static int octeon_mgmt_open(struct net_device *netdev)
octeon_mgmt_reset_hw(p);
mix_ctl.u64 = cvmx_read_csr(CVMX_MIXX_CTL(port));
mix_ctl.u64 = cvmx_read_csr(p->mix + MIX_CTL);
/* Bring it out of reset if needed. */
if (mix_ctl.s.reset) {
mix_ctl.s.reset = 0;
cvmx_write_csr(CVMX_MIXX_CTL(port), mix_ctl.u64);
cvmx_write_csr(p->mix + MIX_CTL, mix_ctl.u64);
do {
mix_ctl.u64 = cvmx_read_csr(CVMX_MIXX_CTL(port));
mix_ctl.u64 = cvmx_read_csr(p->mix + MIX_CTL);
} while (mix_ctl.s.reset);
}
@ -755,17 +794,17 @@ static int octeon_mgmt_open(struct net_device *netdev)
oring1.u64 = 0;
oring1.s.obase = p->tx_ring_handle >> 3;
oring1.s.osize = OCTEON_MGMT_TX_RING_SIZE;
cvmx_write_csr(CVMX_MIXX_ORING1(port), oring1.u64);
cvmx_write_csr(p->mix + MIX_ORING1, oring1.u64);
iring1.u64 = 0;
iring1.s.ibase = p->rx_ring_handle >> 3;
iring1.s.isize = OCTEON_MGMT_RX_RING_SIZE;
cvmx_write_csr(CVMX_MIXX_IRING1(port), iring1.u64);
cvmx_write_csr(p->mix + MIX_IRING1, iring1.u64);
/* Disable packet I/O. */
prtx_cfg.u64 = cvmx_read_csr(CVMX_AGL_GMX_PRTX_CFG(port));
prtx_cfg.u64 = cvmx_read_csr(p->agl + AGL_GMX_PRT_CFG);
prtx_cfg.s.en = 0;
cvmx_write_csr(CVMX_AGL_GMX_PRTX_CFG(port), prtx_cfg.u64);
cvmx_write_csr(p->agl + AGL_GMX_PRT_CFG, prtx_cfg.u64);
memcpy(sa.sa_data, netdev->dev_addr, ETH_ALEN);
octeon_mgmt_set_mac_address(netdev, &sa);
@ -782,7 +821,7 @@ static int octeon_mgmt_open(struct net_device *netdev)
mix_ctl.s.nbtarb = 0; /* Arbitration mode */
/* MII CB-request FIFO programmable high watermark */
mix_ctl.s.mrq_hwm = 1;
cvmx_write_csr(CVMX_MIXX_CTL(port), mix_ctl.u64);
cvmx_write_csr(p->mix + MIX_CTL, mix_ctl.u64);
if (OCTEON_IS_MODEL(OCTEON_CN56XX_PASS1_X)
|| OCTEON_IS_MODEL(OCTEON_CN52XX_PASS1_X)) {
@ -809,16 +848,16 @@ static int octeon_mgmt_open(struct net_device *netdev)
/* Clear statistics. */
/* Clear on read. */
cvmx_write_csr(CVMX_AGL_GMX_RXX_STATS_CTL(port), 1);
cvmx_write_csr(CVMX_AGL_GMX_RXX_STATS_PKTS_DRP(port), 0);
cvmx_write_csr(CVMX_AGL_GMX_RXX_STATS_PKTS_BAD(port), 0);
cvmx_write_csr(p->agl + AGL_GMX_RX_STATS_CTL, 1);
cvmx_write_csr(p->agl + AGL_GMX_RX_STATS_PKTS_DRP, 0);
cvmx_write_csr(p->agl + AGL_GMX_RX_STATS_PKTS_BAD, 0);
cvmx_write_csr(CVMX_AGL_GMX_TXX_STATS_CTL(port), 1);
cvmx_write_csr(CVMX_AGL_GMX_TXX_STAT0(port), 0);
cvmx_write_csr(CVMX_AGL_GMX_TXX_STAT1(port), 0);
cvmx_write_csr(p->agl + AGL_GMX_TX_STATS_CTL, 1);
cvmx_write_csr(p->agl + AGL_GMX_TX_STAT0, 0);
cvmx_write_csr(p->agl + AGL_GMX_TX_STAT1, 0);
/* Clear any pending interrupts */
cvmx_write_csr(CVMX_MIXX_ISR(port), cvmx_read_csr(CVMX_MIXX_ISR(port)));
cvmx_write_csr(p->mix + MIX_ISR, cvmx_read_csr(p->mix + MIX_ISR));
if (request_irq(p->irq, octeon_mgmt_interrupt, 0, netdev->name,
netdev)) {
@ -829,18 +868,18 @@ static int octeon_mgmt_open(struct net_device *netdev)
/* Interrupt every single RX packet */
mix_irhwm.u64 = 0;
mix_irhwm.s.irhwm = 0;
cvmx_write_csr(CVMX_MIXX_IRHWM(port), mix_irhwm.u64);
cvmx_write_csr(p->mix + MIX_IRHWM, mix_irhwm.u64);
/* Interrupt when we have 1 or more packets to clean. */
mix_orhwm.u64 = 0;
mix_orhwm.s.orhwm = 1;
cvmx_write_csr(CVMX_MIXX_ORHWM(port), mix_orhwm.u64);
cvmx_write_csr(p->mix + MIX_ORHWM, mix_orhwm.u64);
/* Enable receive and transmit interrupts */
mix_intena.u64 = 0;
mix_intena.s.ithena = 1;
mix_intena.s.othena = 1;
cvmx_write_csr(CVMX_MIXX_INTENA(port), mix_intena.u64);
cvmx_write_csr(p->mix + MIX_INTENA, mix_intena.u64);
/* Enable packet I/O. */
@ -871,7 +910,7 @@ static int octeon_mgmt_open(struct net_device *netdev)
* frame. GMX checks that the PREAMBLE is sent correctly.
*/
rxx_frm_ctl.s.pre_chk = 1;
cvmx_write_csr(CVMX_AGL_GMX_RXX_FRM_CTL(port), rxx_frm_ctl.u64);
cvmx_write_csr(p->agl + AGL_GMX_RX_FRM_CTL, rxx_frm_ctl.u64);
/* Enable the AGL block */
agl_gmx_inf_mode.u64 = 0;
@ -879,13 +918,13 @@ static int octeon_mgmt_open(struct net_device *netdev)
cvmx_write_csr(CVMX_AGL_GMX_INF_MODE, agl_gmx_inf_mode.u64);
/* Configure the port duplex and enables */
prtx_cfg.u64 = cvmx_read_csr(CVMX_AGL_GMX_PRTX_CFG(port));
prtx_cfg.u64 = cvmx_read_csr(p->agl + AGL_GMX_PRT_CFG);
prtx_cfg.s.tx_en = 1;
prtx_cfg.s.rx_en = 1;
prtx_cfg.s.en = 1;
p->last_duplex = 1;
prtx_cfg.s.duplex = p->last_duplex;
cvmx_write_csr(CVMX_AGL_GMX_PRTX_CFG(port), prtx_cfg.u64);
cvmx_write_csr(p->agl + AGL_GMX_PRT_CFG, prtx_cfg.u64);
p->last_link = 0;
netif_carrier_off(netdev);
@ -949,7 +988,6 @@ static int octeon_mgmt_stop(struct net_device *netdev)
static int octeon_mgmt_xmit(struct sk_buff *skb, struct net_device *netdev)
{
struct octeon_mgmt *p = netdev_priv(netdev);
int port = p->port;
union mgmt_port_ring_entry re;
unsigned long flags;
int rv = NETDEV_TX_BUSY;
@ -993,7 +1031,7 @@ static int octeon_mgmt_xmit(struct sk_buff *skb, struct net_device *netdev)
netdev->stats.tx_bytes += skb->len;
/* Ring the bell. */
cvmx_write_csr(CVMX_MIXX_ORING2(port), 1);
cvmx_write_csr(p->mix + MIX_ORING2, 1);
rv = NETDEV_TX_OK;
out:
@ -1071,10 +1109,14 @@ static const struct net_device_ops octeon_mgmt_ops = {
static int __devinit octeon_mgmt_probe(struct platform_device *pdev)
{
struct resource *res_irq;
struct net_device *netdev;
struct octeon_mgmt *p;
int i;
const __be32 *data;
const u8 *mac;
struct resource *res_mix;
struct resource *res_agl;
int len;
int result;
netdev = alloc_etherdev(sizeof(struct octeon_mgmt));
if (netdev == NULL)
@ -1088,14 +1130,63 @@ static int __devinit octeon_mgmt_probe(struct platform_device *pdev)
p->netdev = netdev;
p->dev = &pdev->dev;
p->port = pdev->id;
data = of_get_property(pdev->dev.of_node, "cell-index", &len);
if (data && len == sizeof(*data)) {
p->port = be32_to_cpup(data);
} else {
dev_err(&pdev->dev, "no 'cell-index' property\n");
result = -ENXIO;
goto err;
}
snprintf(netdev->name, IFNAMSIZ, "mgmt%d", p->port);
res_irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
if (!res_irq)
result = platform_get_irq(pdev, 0);
if (result < 0)
goto err;
p->irq = res_irq->start;
p->irq = result;
res_mix = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (res_mix == NULL) {
dev_err(&pdev->dev, "no 'reg' resource\n");
result = -ENXIO;
goto err;
}
res_agl = platform_get_resource(pdev, IORESOURCE_MEM, 1);
if (res_agl == NULL) {
dev_err(&pdev->dev, "no 'reg' resource\n");
result = -ENXIO;
goto err;
}
p->mix_phys = res_mix->start;
p->mix_size = resource_size(res_mix);
p->agl_phys = res_agl->start;
p->agl_size = resource_size(res_agl);
if (!devm_request_mem_region(&pdev->dev, p->mix_phys, p->mix_size,
res_mix->name)) {
dev_err(&pdev->dev, "request_mem_region (%s) failed\n",
res_mix->name);
result = -ENXIO;
goto err;
}
if (!devm_request_mem_region(&pdev->dev, p->agl_phys, p->agl_size,
res_agl->name)) {
result = -ENXIO;
dev_err(&pdev->dev, "request_mem_region (%s) failed\n",
res_agl->name);
goto err;
}
p->mix = (u64)devm_ioremap(&pdev->dev, p->mix_phys, p->mix_size);
p->agl = (u64)devm_ioremap(&pdev->dev, p->agl_phys, p->agl_size);
spin_lock_init(&p->lock);
skb_queue_head_init(&p->tx_list);
@ -1108,24 +1199,26 @@ static int __devinit octeon_mgmt_probe(struct platform_device *pdev)
netdev->netdev_ops = &octeon_mgmt_ops;
netdev->ethtool_ops = &octeon_mgmt_ethtool_ops;
/* The mgmt ports get the first N MACs. */
for (i = 0; i < 6; i++)
netdev->dev_addr[i] = octeon_bootinfo->mac_addr_base[i];
netdev->dev_addr[5] += p->port;
mac = of_get_mac_address(pdev->dev.of_node);
if (p->port >= octeon_bootinfo->mac_addr_count)
dev_err(&pdev->dev,
"Error %s: Using MAC outside of the assigned range: %pM\n",
netdev->name, netdev->dev_addr);
if (mac)
memcpy(netdev->dev_addr, mac, 6);
if (register_netdev(netdev))
p->phy_np = of_parse_phandle(pdev->dev.of_node, "phy-handle", 0);
pdev->dev.coherent_dma_mask = DMA_BIT_MASK(64);
pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
result = register_netdev(netdev);
if (result)
goto err;
dev_info(&pdev->dev, "Version " DRV_VERSION "\n");
return 0;
err:
free_netdev(netdev);
return -ENOENT;
return result;
}
static int __devexit octeon_mgmt_remove(struct platform_device *pdev)
@ -1137,10 +1230,19 @@ static int __devexit octeon_mgmt_remove(struct platform_device *pdev)
return 0;
}
static struct of_device_id octeon_mgmt_match[] = {
{
.compatible = "cavium,octeon-5750-mix",
},
{},
};
MODULE_DEVICE_TABLE(of, octeon_mgmt_match);
static struct platform_driver octeon_mgmt_driver = {
.driver = {
.name = "octeon_mgmt",
.owner = THIS_MODULE,
.of_match_table = octeon_mgmt_match,
},
.probe = octeon_mgmt_probe,
.remove = __devexit_p(octeon_mgmt_remove),