[PATCH 2/2] Re-added support for FEC on MPC5121 from Freescale LTIB to current head
David Jander
david.jander at protonic.nl
Thu Jun 12 21:45:52 EST 2008
Signed-off-by: David Jander <david at protonic.nl>
---
arch/powerpc/platforms/Kconfig | 2 +-
drivers/net/fec.h | 43 ++++++++++++++++++++
drivers/net/fs_enet/Kconfig | 22 +++++++++-
drivers/net/fs_enet/fs_enet-main.c | 76 ++++++++++++++++++++++++++++++------
drivers/net/fs_enet/fs_enet.h | 17 +++++---
drivers/net/fs_enet/mac-fec.c | 22 +++++++++-
drivers/net/fs_enet/mii-fec.c | 10 ++++-
7 files changed, 167 insertions(+), 25 deletions(-)
diff --git a/arch/powerpc/platforms/Kconfig b/arch/powerpc/platforms/Kconfig
index 87454c5..a96937f 100644
--- a/arch/powerpc/platforms/Kconfig
+++ b/arch/powerpc/platforms/Kconfig
@@ -288,7 +288,7 @@ config CPM2
config PPC_CPM_NEW_BINDING
bool
- depends on CPM1 || CPM2
+ depends on CPM1 || CPM2 || FS_ENET_MPC5121_FEC
default y
config AXON_RAM
diff --git a/drivers/net/fec.h b/drivers/net/fec.h
index 292719d..5c9fe34 100644
--- a/drivers/net/fec.h
+++ b/drivers/net/fec.h
@@ -59,6 +59,7 @@ typedef struct fec {
} fec_t;
#else
+#if !defined(CONFIG_FS_ENET_MPC5121_FEC)
/*
* Define device register set address map.
@@ -97,6 +98,48 @@ typedef struct fec {
unsigned long fec_fifo_ram[112]; /* FIFO RAM buffer */
} fec_t;
+#else /* CONFIG_FS_ENET_MPC5121_FEC */
+
+typedef struct fec {
+ u32 fec_reserved0;
+ u32 fec_ievent; /* Interrupt event reg */
+ u32 fec_imask; /* Interrupt mask reg */
+ u32 fec_reserved1;
+ u32 fec_r_des_active; /* Receive descriptor reg */
+ u32 fec_x_des_active; /* Transmit descriptor reg */
+ u32 fec_reserved2[3];
+ u32 fec_ecntrl; /* Ethernet control reg */
+ u32 fec_reserved3[6];
+ u32 fec_mii_data; /* MII manage frame reg */
+ u32 fec_mii_speed; /* MII speed control reg */
+ u32 fec_reserved4[7];
+ u32 fec_mib_ctrlstat; /* MIB control/status reg */
+ u32 fec_reserved5[7];
+ u32 fec_r_cntrl; /* Receive control reg */
+ u32 fec_reserved6[15];
+ u32 fec_x_cntrl; /* Transmit Control reg */
+ u32 fec_reserved7[7];
+ u32 fec_addr_low; /* Low 32bits MAC address */
+ u32 fec_addr_high; /* High 16bits MAC address */
+ u32 fec_opd; /* Opcode + Pause duration */
+ u32 fec_reserved8[10];
+ u32 fec_hash_table_high; /* High 32bits hash table */
+ u32 fec_hash_table_low; /* Low 32bits hash table */
+ u32 fec_grp_hash_table_high;/* High 32bits hash table */
+ u32 fec_grp_hash_table_low; /* Low 32bits hash table */
+ u32 fec_reserved9[7];
+ u32 fec_x_wmrk; /* FIFO transmit water mark */
+ u32 fec_reserved10;
+ u32 fec_r_bound; /* FIFO receive bound reg */
+ u32 fec_r_fstart; /* FIFO receive start reg */
+ u32 fec_reserved11[11];
+ u32 fec_r_des_start; /* Receive descriptor ring */
+ u32 fec_x_des_start; /* Transmit descriptor ring */
+ u32 fec_r_buff_size; /* Maximum receive buff size */
+ u32 fec_dma_control; /* DMA Endian and other ctrl */
+} fec_t;
+
+#endif /* CONFIG_FS_ENET_MPC5121_FEC */
#endif /* CONFIG_M5272 */
diff --git a/drivers/net/fs_enet/Kconfig b/drivers/net/fs_enet/Kconfig
index 562ea68..5e2520b 100644
--- a/drivers/net/fs_enet/Kconfig
+++ b/drivers/net/fs_enet/Kconfig
@@ -1,9 +1,23 @@
config FS_ENET
tristate "Freescale Ethernet Driver"
- depends on CPM1 || CPM2
+ depends on CPM1 || CPM2 || FS_ENET_MPC5121_FEC
select MII
select PHYLIB
+config FS_ENET_MPC5121_FEC
+ bool "Freescale MPC512x FEC driver"
+ depends on PPC_MPC512x
+ select FS_ENET
+ select FS_ENET_HAS_FEC
+
+config FS_ENET_TX_ALIGN_WORKAROUND
+ bool "MPC5121 FEC driver TX alignment workaround"
+ depends on FS_ENET_MPC5121_FEC
+ help
+ Workaround for a problem with early Freescale MPC5121 chips.
+ If unsure say 'y'
+ default y
+
config FS_ENET_HAS_SCC
bool "Chip has an SCC usable for ethernet"
depends on FS_ENET && (CPM1 || CPM2)
@@ -16,13 +30,15 @@ config FS_ENET_HAS_FCC
config FS_ENET_HAS_FEC
bool "Chip has an FEC usable for ethernet"
- depends on FS_ENET && CPM1
+ depends on FS_ENET && (CPM1 || FS_ENET_MPC5121_FEC)
select FS_ENET_MDIO_FEC
default y
+
config FS_ENET_MDIO_FEC
tristate "MDIO driver for FEC"
- depends on FS_ENET && CPM1
+ depends on FS_ENET && (CPM1 || FS_ENET_MPC5121_FEC)
+
config FS_ENET_MDIO_FCC
tristate "MDIO driver for FCC"
diff --git a/drivers/net/fs_enet/fs_enet-main.c b/drivers/net/fs_enet/fs_enet-main.c
index 31c9693..54f0079 100644
--- a/drivers/net/fs_enet/fs_enet-main.c
+++ b/drivers/net/fs_enet/fs_enet-main.c
@@ -592,6 +592,31 @@ void fs_cleanup_bds(struct net_device *dev)
/**********************************************************************************/
+#ifdef CONFIG_FS_ENET_TX_ALIGN_WORKAROUND
+static struct sk_buff *aligntxskb(struct net_device *dev, struct sk_buff *skb)
+{
+ struct sk_buff *skbn;
+ skbn = dev_alloc_skb(ENET_RX_FRSIZE+0x20);
+ if (skbn)
+ skb_align(skbn, 0x20);
+
+ if (!skbn) {
+ printk(KERN_WARNING DRV_MODULE_NAME
+ ": %s Memory squeeze, dropping tx packet.\n",
+ dev->name);
+ dev_kfree_skb_any(skb);
+ return NULL;
+ }
+
+ skb_copy_from_linear_data(skb, skbn->data, skb->len);
+ skb_put(skbn, skb->len);
+ dev_kfree_skb_any(skb);
+ return skbn;
+}
+#else
+#define aligntxskb(skb) skb
+#endif
+
static int fs_enet_start_xmit(struct sk_buff *skb, struct net_device *dev)
{
struct fs_enet_private *fep = netdev_priv(dev);
@@ -600,6 +625,7 @@ static int fs_enet_start_xmit(struct sk_buff *skb, struct net_device *dev)
u16 sc;
unsigned long flags;
+ skb = aligntxskb(dev, skb);
spin_lock_irqsave(&fep->tx_lock, flags);
/*
@@ -1370,10 +1396,17 @@ static struct of_device_id fs_enet_match[] = {
},
#endif
#ifdef CONFIG_FS_ENET_HAS_FEC
+#ifndef CONFIG_FS_ENET_MPC5121_FEC
{
.compatible = "fsl,pq1-fec-enet",
.data = (void *)&fs_fec_ops,
},
+#else
+ {
+ .compatible = "fsl,mpc5121-fec",
+ .data = (void *)&fs_fec_ops,
+ },
+#endif
#endif
{}
};
@@ -1431,15 +1464,38 @@ static int fs_enet_remove(struct device *dev)
return fs_cleanup_instance(dev_get_drvdata(dev));
}
+#ifdef CONFIG_PM
+static int fs_enet_suspend(struct device *dev, pm_message_t state)
+{
+ struct net_device *ndev = dev_get_drvdata(dev);
+
+ if (netif_running(ndev))
+ fs_enet_close(ndev);
+
+ return 0;
+}
+
+static int fs_enet_resume(struct device *dev)
+{
+ struct net_device *ndev = dev_get_drvdata(dev);
+
+ if (netif_running(ndev))
+ fs_enet_open(ndev);
+
+ return 0;
+}
+#else
+#define fs_enet_suspend NULL
+#define fs_enet_resume NULL
+#endif
+
static struct device_driver fs_enet_fec_driver = {
.name = "fsl-cpm-fec",
.bus = &platform_bus_type,
.probe = fs_enet_probe,
.remove = fs_enet_remove,
-#ifdef CONFIG_PM
-/* .suspend = fs_enet_suspend, TODO */
-/* .resume = fs_enet_resume, TODO */
-#endif
+ .suspend = fs_enet_suspend,
+ .resume = fs_enet_resume,
};
static struct device_driver fs_enet_scc_driver = {
@@ -1447,10 +1503,8 @@ static struct device_driver fs_enet_scc_driver = {
.bus = &platform_bus_type,
.probe = fs_enet_probe,
.remove = fs_enet_remove,
-#ifdef CONFIG_PM
-/* .suspend = fs_enet_suspend, TODO */
-/* .resume = fs_enet_resume, TODO */
-#endif
+ .suspend = fs_enet_suspend,
+ .resume = fs_enet_resume,
};
static struct device_driver fs_enet_fcc_driver = {
@@ -1458,10 +1512,8 @@ static struct device_driver fs_enet_fcc_driver = {
.bus = &platform_bus_type,
.probe = fs_enet_probe,
.remove = fs_enet_remove,
-#ifdef CONFIG_PM
-/* .suspend = fs_enet_suspend, TODO */
-/* .resume = fs_enet_resume, TODO */
-#endif
+ .suspend = fs_enet_suspend,
+ .resume = fs_enet_resume,
};
static int __init fs_init(void)
diff --git a/drivers/net/fs_enet/fs_enet.h b/drivers/net/fs_enet/fs_enet.h
index e05389c..ea3cf2f 100644
--- a/drivers/net/fs_enet/fs_enet.h
+++ b/drivers/net/fs_enet/fs_enet.h
@@ -10,10 +10,15 @@
#include <linux/fs_enet_pd.h>
#include <asm/fs_pd.h>
+#ifdef CONFIG_FS_ENET_MPC5121_FEC
+#include "../fec.h"
+#endif
#ifdef CONFIG_CPM1
#include <asm/cpm1.h>
+#endif
+#if defined(CONFIG_CPM1) || defined(CONFIG_FS_ENET_MPC5121_FEC)
struct fec_info {
fec_t __iomem *fecp;
u32 mii_speed;
@@ -177,14 +182,14 @@ void fs_enet_platform_cleanup(void);
#endif
/* write */
-#define CBDW_SC(_cbd, _sc) __cbd_out16(&(_cbd)->cbd_sc, (_sc))
-#define CBDW_DATLEN(_cbd, _datlen) __cbd_out16(&(_cbd)->cbd_datlen, (_datlen))
-#define CBDW_BUFADDR(_cbd, _bufaddr) __cbd_out32(&(_cbd)->cbd_bufaddr, (_bufaddr))
+#define CBDW_SC(_cbd, _sc) __cbd_out16((volatile void __iomem *)&(_cbd)->cbd_sc, (_sc))
+#define CBDW_DATLEN(_cbd, _datlen) __cbd_out16((volatile void __iomem *)&(_cbd)->cbd_datlen, (_datlen))
+#define CBDW_BUFADDR(_cbd, _bufaddr) __cbd_out32((volatile void __iomem *)&(_cbd)->cbd_bufaddr, (_bufaddr))
/* read */
-#define CBDR_SC(_cbd) __cbd_in16(&(_cbd)->cbd_sc)
-#define CBDR_DATLEN(_cbd) __cbd_in16(&(_cbd)->cbd_datlen)
-#define CBDR_BUFADDR(_cbd) __cbd_in32(&(_cbd)->cbd_bufaddr)
+#define CBDR_SC(_cbd) __cbd_in16((volatile void __iomem *)&(_cbd)->cbd_sc)
+#define CBDR_DATLEN(_cbd) __cbd_in16((volatile void __iomem *)&(_cbd)->cbd_datlen)
+#define CBDR_BUFADDR(_cbd) __cbd_in32((volatile void __iomem *)&(_cbd)->cbd_bufaddr)
/* set bits */
#define CBDS_SC(_cbd, _sc) CBDW_SC(_cbd, CBDR_SC(_cbd) | (_sc))
diff --git a/drivers/net/fs_enet/mac-fec.c b/drivers/net/fs_enet/mac-fec.c
index 8a311d1..ddbe548 100644
--- a/drivers/net/fs_enet/mac-fec.c
+++ b/drivers/net/fs_enet/mac-fec.c
@@ -42,6 +42,9 @@
#include <asm/mpc8xx.h>
#include <asm/cpm1.h>
#endif
+#ifdef CONFIG_FS_ENET_MPC5121_FEC
+#include "../fec.h"
+#endif
#ifdef CONFIG_PPC_CPM_NEW_BINDING
#include <asm/of_device.h>
@@ -306,7 +309,9 @@ static void restart(struct net_device *dev)
* Set maximum receive buffer size.
*/
FW(fecp, r_buff_size, PKT_MAXBLR_SIZE);
+#ifndef CONFIG_FS_ENET_MPC5121_FEC
FW(fecp, r_hash, PKT_MAXBUF_SIZE);
+#endif
/* get physical address */
rx_bd_base_phys = fep->ring_mem_addr;
@@ -320,10 +325,17 @@ static void restart(struct net_device *dev)
fs_init_bds(dev);
+#ifndef CONFIG_FS_ENET_MPC5121_FEC
/*
* Enable big endian and don't care about SDMA FC.
*/
FW(fecp, fun_code, 0x78000000);
+#else
+ /*
+ * Set DATA_BO and DESC_BO and leave the rest unchanged
+ */
+ FS(fecp, dma_control, 0xc0000000);
+#endif
/*
* Set MII speed.
@@ -334,11 +346,13 @@ static void restart(struct net_device *dev)
* Clear any outstanding interrupt.
*/
FW(fecp, ievent, 0xffc0);
+#ifndef CONFIG_FS_ENET_MPC5121_FEC
#ifndef CONFIG_PPC_MERGE
FW(fecp, ivec, (fep->interrupt / 2) << 29);
#else
FW(fecp, ivec, (virq_to_hw(fep->interrupt) / 2) << 29);
#endif
+#endif
/*
* adjust to speed (only for DUET & RMII)
@@ -368,9 +382,13 @@ static void restart(struct net_device *dev)
out_be32(&immap->im_cpm.cp_cptr, cptr);
}
#endif
-
-
+#ifdef CONFIG_FS_ENET_MPC5121_FEC
+ FW(fecp, r_cntrl, PKT_MAXBUF_SIZE<<16); /* max frame size */
+ FS(fecp, r_cntrl, FEC_RCNTRL_MII_MODE); /* MII enable */
+#else
FW(fecp, r_cntrl, FEC_RCNTRL_MII_MODE); /* MII enable */
+#endif
+
/*
* adjust to duplex mode
*/
diff --git a/drivers/net/fs_enet/mii-fec.c b/drivers/net/fs_enet/mii-fec.c
index f0014cf..5d9b846 100644
--- a/drivers/net/fs_enet/mii-fec.c
+++ b/drivers/net/fs_enet/mii-fec.c
@@ -38,6 +38,7 @@
#ifdef CONFIG_PPC_CPM_NEW_BINDING
#include <asm/of_platform.h>
+#include <asm/time.h>
#endif
#include "fs_enet.h"
@@ -71,7 +72,7 @@ static int fs_mii_fec_init(struct fec_info* fec, struct fs_mii_fec_platform_info
{
struct resource *r;
fec_t __iomem *fecp;
- char* name = "fsl-cpm-fec";
+ char *name = "fsl-cpm-fec";
/* we need fec in order to be useful */
struct platform_device *fec_pdev =
@@ -261,9 +262,16 @@ static int fs_enet_mdio_remove(struct of_device *ofdev)
}
static struct of_device_id fs_enet_mdio_fec_match[] = {
+#ifdef CONFIG_FS_ENET_FEC
{
.compatible = "fsl,pq1-fec-mdio",
},
+#endif
+#ifdef CONFIG_FS_ENET_MPC5121_FEC
+ {
+ .compatible = "fsl,mpc5121-fec-mdio",
+ },
+#endif
{},
};
--
1.5.4.3
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