atheros[ar231x-eth]: pass PHY I/O memory via device resources

Pass PHY I/O memory region via platform resources and remap them
unconditionally.

Signed-off-by: Sergey Ryazanov <ryazanov.s.a@gmail.com>

SVN-Revision: 41698

3 files changed, 72 insertions, 41 deletions

diff --git a/target/linux/atheros/patches-3.10/100-board.patch b/target/linux/atheros/patches-3.10/100-board.patch
index b9a88a1..4fdf435 100644
--- a/target/linux/atheros/patches-3.10/100-board.patch
+++ b/target/linux/atheros/patches-3.10/100-board.patch
@@ -388,7 +388,7 @@
 +}
 --- /dev/null
 +++ b/arch/mips/include/asm/mach-ar231x/ar231x_platform.h
-@@ -0,0 +1,84 @@
+@@ -0,0 +1,83 @@
 +#ifndef __AR531X_PLATFORM_H
 +#define __AR531X_PLATFORM_H
 +
@@ -467,7 +467,6 @@
 +	void (*reset_clear)(u32);
 +	u32 reset_mac;
 +	u32 reset_phy;
-+	u32 phy_base;
 +	struct ar231x_board_config *config;
 +	char *macaddr;
 +};
@@ -714,7 +713,7 @@
 +#endif /* __ASM_MIPS_MACH_ATHEROS_WAR_H */
 --- /dev/null
 +++ b/arch/mips/include/asm/mach-ar231x/ar2315_regs.h
-@@ -0,0 +1,614 @@
+@@ -0,0 +1,617 @@
 +/*
 + * Register definitions for AR2315+
 + *
@@ -771,6 +770,9 @@
 +#define AR2315_SPI_MMR          0x11300000      /* SPI FLASH MMR */
 +#define AR2315_PCIEXT           0x80000000      /* pci external */
 +
++/* MII registers offset inside Ethernet MMR region */
++#define AR2315_ENET0_MII	(AR2315_ENET0 + 0x14)
++
 +/*
 + * Reset Register
 + */
@@ -1331,7 +1333,7 @@
 +#endif /* __AR2315_REG_H */
 --- /dev/null
 +++ b/arch/mips/include/asm/mach-ar231x/ar5312_regs.h
-@@ -0,0 +1,249 @@
+@@ -0,0 +1,253 @@
 +/*
 + * This file is subject to the terms and conditions of the GNU General Public
 + * License.  See the file "COPYING" in the main directory of this archive
@@ -1401,6 +1403,10 @@
 +#define AR5212_AR5312_REV7      0x0057          /* AR5312 WMAC (AP30-040) */
 +#define AR5212_AR2313_REV8      0x0058          /* AR2313 WMAC (AP43-030) */
 +
++/* MII registers offset inside Ethernet MMR region */
++#define AR531X_ENET0_MII	(AR531X_ENET0 + 0x14)
++#define AR531X_ENET1_MII	(AR531X_ENET1 + 0x14)
++
 +/*
 + * AR531X_NUM_WMAC defines the number of Wireless MACs that\
 + * should be considered available.
@@ -1805,7 +1811,6 @@
 +	.reset_clear = ar5312_device_reset_clear,
 +	.reset_mac = AR531X_RESET_ENET0,
 +	.reset_phy = AR531X_RESET_EPHY0,
-+	.phy_base = AR531X_ENET0,
 +	.config = &ar231x_board,
 +};
 +
@@ -1814,7 +1819,6 @@
 +	.reset_clear = ar5312_device_reset_clear,
 +	.reset_mac = AR531X_RESET_ENET1,
 +	.reset_phy = AR531X_RESET_EPHY1,
-+	.phy_base = AR531X_ENET1,
 +	.config = &ar231x_board,
 +};
 +
@@ -1936,11 +1940,13 @@
 +	switch (ar231x_devtype) {
 +	case DEV_TYPE_AR5312:
 +		ar5312_eth0_data.macaddr = config->enet0_mac;
-+		ar231x_add_ethernet(0, AR531X_ENET0, AR5312_IRQ_ENET0_INTRS,
++		ar231x_add_ethernet(0, AR531X_ENET0, "eth0_mii",
++				    AR531X_ENET0_MII, AR5312_IRQ_ENET0_INTRS,
 +				    &ar5312_eth0_data);
 +
 +		ar5312_eth1_data.macaddr = config->enet1_mac;
-+		ar231x_add_ethernet(1, AR531X_ENET1, AR5312_IRQ_ENET1_INTRS,
++		ar231x_add_ethernet(1, AR531X_ENET1, "eth1_mii",
++				    AR531X_ENET1_MII, AR5312_IRQ_ENET1_INTRS,
 +				    &ar5312_eth1_data);
 +
 +		if (!ar231x_board.radio)
@@ -1957,11 +1963,11 @@
 +	 */
 +	case DEV_TYPE_AR2312:
 +	case DEV_TYPE_AR2313:
-+		ar5312_eth1_data.phy_base = ar5312_eth0_data.phy_base;
 +		ar5312_eth1_data.reset_phy = ar5312_eth0_data.reset_phy;
 +		ar5312_eth1_data.macaddr = config->enet0_mac;
-+		ar231x_add_ethernet(0, AR531X_ENET1,
-+			AR5312_IRQ_ENET1_INTRS, &ar5312_eth1_data);
++		ar231x_add_ethernet(1, AR531X_ENET1, "eth0_mii",
++				    AR531X_ENET0_MII, AR5312_IRQ_ENET1_INTRS,
++				    &ar5312_eth1_data);
 +
 +		if (!ar231x_board.radio)
 +			return 0;
@@ -2126,7 +2132,7 @@
 +
 --- /dev/null
 +++ b/arch/mips/ar231x/ar2315.c
-@@ -0,0 +1,557 @@
+@@ -0,0 +1,556 @@
 +/*
 + * This file is subject to the terms and conditions of the GNU General Public
 + * License.  See the file "COPYING" in the main directory of this archive
@@ -2409,7 +2415,6 @@
 +	.reset_clear = ar2315_device_reset_clear,
 +	.reset_mac = AR2315_RESET_ENET0,
 +	.reset_phy = AR2315_RESET_EPHY0,
-+	.phy_base = AR2315_ENET0,
 +	.config = &ar231x_board,
 +};
 +
@@ -2523,8 +2528,8 @@
 +	ar2315_init_gpio_leds();
 +	platform_device_register(&ar2315_wdt);
 +	platform_device_register(&ar2315_spiflash);
-+	ar231x_add_ethernet(0, AR2315_ENET0, AR2315_IRQ_ENET0_INTRS,
-+			    &ar2315_eth_data);
++	ar231x_add_ethernet(0, AR2315_ENET0, "eth0_mii", AR2315_ENET0_MII,
++			    AR2315_IRQ_ENET0_INTRS, &ar2315_eth_data);
 +	ar231x_add_wmac(0, AR2315_WLAN0, AR2315_IRQ_WLAN0_INTRS);
 +
 +	return 0;
@@ -2813,7 +2818,7 @@
 +#endif
 --- /dev/null
 +++ b/arch/mips/ar231x/devices.h
-@@ -0,0 +1,37 @@
+@@ -0,0 +1,38 @@
 +#ifndef __AR231X_DEVICES_H
 +#define __AR231X_DEVICES_H
 +
@@ -2838,7 +2843,8 @@
 +extern int ar231x_find_config(u8 *flash_limit);
 +extern void ar231x_serial_setup(u32 mapbase, int irq, unsigned int uartclk);
 +extern int ar231x_add_wmac(int nr, u32 base, int irq);
-+extern int ar231x_add_ethernet(int nr, u32 base, int irq, void *pdata);
++extern int ar231x_add_ethernet(int nr, u32 base, const char *mii_name,
++			       u32 mii_base, int irq, void *pdata);
 +
 +static inline bool is_2315(void)
 +{
@@ -2853,7 +2859,7 @@
 +#endif
 --- /dev/null
 +++ b/arch/mips/ar231x/devices.c
-@@ -0,0 +1,168 @@
+@@ -0,0 +1,181 @@
 +#include <linux/kernel.h>
 +#include <linux/init.h>
 +#include <linux/serial.h>
@@ -2875,6 +2881,10 @@
 +		.flags = IORESOURCE_MEM,
 +	},
 +	{
++		.name = "eth0_mii",
++		.flags = IORESOURCE_MEM,
++	},
++	{
 +		.name = "eth0_irq",
 +		.flags = IORESOURCE_IRQ,
 +	}
@@ -2886,6 +2896,10 @@
 +		.flags = IORESOURCE_MEM,
 +	},
 +	{
++		.name = "eth1_mii",
++		.flags = IORESOURCE_MEM,
++	},
++	{
 +		.name = "eth1_irq",
 +		.flags = IORESOURCE_IRQ,
 +	}
@@ -2966,7 +2980,8 @@
 +
 +
 +int __init
-+ar231x_add_ethernet(int nr, u32 base, int irq, void *pdata)
++ar231x_add_ethernet(int nr, u32 base, const char *mii_name, u32 mii_base,
++		    int irq, void *pdata)
 +{
 +	struct resource *res;
 +
@@ -2975,6 +2990,10 @@
 +	res->start = base;
 +	res->end = base + 0x2000 - 1;
 +	res++;
++	res->name = mii_name;
++	res->start = mii_base;
++	res->end = mii_base + 8 - 1;
++	res++;
 +	res->start = irq;
 +	res->end = irq;
 +	return platform_device_register(&ar231x_eth[nr]);
diff --git a/target/linux/atheros/patches-3.10/110-ar2313_ethernet.patch b/target/linux/atheros/patches-3.10/110-ar2313_ethernet.patch
index 0e158d4..a9dcab2 100644
--- a/target/linux/atheros/patches-3.10/110-ar2313_ethernet.patch
+++ b/target/linux/atheros/patches-3.10/110-ar2313_ethernet.patch
@@ -33,7 +33,7 @@
 +obj-$(CONFIG_NET_AR231X) += ar231x.o
 --- /dev/null
 +++ b/drivers/net/ethernet/atheros/ar231x/ar231x.c
-@@ -0,0 +1,1246 @@
+@@ -0,0 +1,1250 @@
 +/*
 + * ar231x.c: Linux driver for the Atheros AR231x Ethernet device.
 + *
@@ -216,7 +216,7 @@
 +#endif
 +};
 +
-+int ar231x_probe(struct platform_device *pdev)
++static int ar231x_probe(struct platform_device *pdev)
 +{
 +	struct net_device *dev;
 +	struct ar231x_private *sp;
@@ -266,17 +266,19 @@
 +	/**
 +	 * When there's only one MAC, PHY regs are typically on ENET0,
 +	 * even though the MAC might be on ENET1.
-+	 * Needto remap PHY regs separately in this case
++	 * So remap PHY regs separately.
 +	 */
-+	if (ar_eth_base == sp->cfg->phy_base)
-+		sp->phy_regs = sp->eth_regs;
-+	else {
-+		sp->phy_regs = ioremap_nocache(sp->cfg->phy_base,
-+					       sizeof(*sp->phy_regs));
-+		if (!sp->phy_regs) {
-+			printk("Can't remap phy registers\n");
-+			return -ENXIO;
-+		}
++	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "eth0_mii");
++	if (!res) {
++		res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
++						   "eth1_mii");
++		if (!res)
++			return -ENODEV;
++	}
++	sp->phy_regs = ioremap_nocache(res->start, resource_size(res));
++	if (!sp->phy_regs) {
++		printk("Can't remap phy registers\n");
++		return -ENXIO;
 +	}
 +
 +	sp->dma_regs = ioremap_nocache(ar_eth_base + 0x1000,
@@ -482,6 +484,8 @@
 +		iounmap((void *)sp->eth_regs);
 +	if (sp->dma_regs)
 +		iounmap((void *)sp->dma_regs);
++	if (sp->phy_regs)
++		iounmap((void *)sp->phy_regs);
 +
 +	if (sp->rx_skb) {
 +		for (j = 0; j < AR2313_DESCR_ENTRIES; j++) {
@@ -1195,7 +1199,7 @@
 +{
 +	struct net_device *const dev = bus->priv;
 +	struct ar231x_private *sp = netdev_priv(dev);
-+	volatile ETHERNET_STRUCT *ethernet = sp->phy_regs;
++	volatile MII *ethernet = sp->phy_regs;
 +
 +	ethernet->mii_addr = MII_ADDR(phy_addr, regnum);
 +	while (ethernet->mii_addr & MII_ADDR_BUSY)
@@ -1208,7 +1212,7 @@
 +{
 +	struct net_device *const dev = bus->priv;
 +	struct ar231x_private *sp = netdev_priv(dev);
-+	volatile ETHERNET_STRUCT *ethernet = sp->phy_regs;
++	volatile MII *ethernet = sp->phy_regs;
 +
 +	while (ethernet->mii_addr & MII_ADDR_BUSY)
 +		;
@@ -1282,7 +1286,7 @@
 +
 --- /dev/null
 +++ b/drivers/net/ethernet/atheros/ar231x/ar231x.h
-@@ -0,0 +1,287 @@
+@@ -0,0 +1,295 @@
 +/*
 + * ar231x.h: Linux driver for the Atheros AR231x Ethernet device.
 + *
@@ -1444,13 +1448,16 @@
 +
 +/**
 + * New Combo structure for Both Eth0 AND eth1
++ *
++ * Don't directly access MII related regs since phy chip could be actually
++ * connected to another ethernet block.
 + */
 +typedef struct {
 +	volatile unsigned int mac_control;	/* 0x00 */
 +	volatile unsigned int mac_addr[2];	/* 0x04 - 0x08 */
 +	volatile unsigned int mcast_table[2];	/* 0x0c - 0x10 */
-+	volatile unsigned int mii_addr;	/* 0x14 */
-+	volatile unsigned int mii_data;	/* 0x18 */
++	volatile unsigned int __mii_addr;	/* 0x14 */
++	volatile unsigned int __mii_data;	/* 0x18 */
 +	volatile unsigned int flow_control;	/* 0x1c */
 +	volatile unsigned int vlan_tag;	/* 0x20 */
 +	volatile unsigned int pad[7];	/* 0x24 - 0x3c */
@@ -1458,6 +1465,11 @@
 +
 +} ETHERNET_STRUCT;
 +
++typedef struct {
++	volatile unsigned int mii_addr;
++	volatile unsigned int mii_data;
++} MII;
++
 +/********************************************************************
 + * Interrupt controller
 + ********************************************************************/
@@ -1505,7 +1517,7 @@
 +	int version;
 +	u32 mb[2];
 +
-+	volatile ETHERNET_STRUCT *phy_regs;
++	volatile MII *phy_regs;
 +	volatile ETHERNET_STRUCT *eth_regs;
 +	volatile DMA *dma_regs;
 +	struct ar231x_eth *cfg;
diff --git a/target/linux/atheros/patches-3.10/220-enet_micrel_workaround.patch b/target/linux/atheros/patches-3.10/220-enet_micrel_workaround.patch
index 361b4e3..dade7ee 100644
--- a/target/linux/atheros/patches-3.10/220-enet_micrel_workaround.patch
+++ b/target/linux/atheros/patches-3.10/220-enet_micrel_workaround.patch
@@ -38,10 +38,10 @@
 +	return 0;
 +}
 +
- int ar231x_probe(struct platform_device *pdev)
+ static int ar231x_probe(struct platform_device *pdev)
  {
  	struct net_device *dev;
-@@ -284,6 +311,23 @@ int ar231x_probe(struct platform_device
+@@ -286,6 +313,23 @@ static int ar231x_probe(struct platform_
  
  	mdiobus_register(sp->mii_bus);
  
@@ -65,7 +65,7 @@
  	if (ar231x_mdiobus_probe(dev) != 0) {
  		printk(KERN_ERR "%s: mdiobus_probe failed\n", dev->name);
  		rx_tasklet_cleanup(dev);
-@@ -340,8 +384,10 @@ static int ar231x_remove(struct platform
+@@ -342,8 +386,10 @@ static int ar231x_remove(struct platform
  	rx_tasklet_cleanup(dev);
  	ar231x_init_cleanup(dev);
  	unregister_netdev(dev);
@@ -78,7 +78,7 @@
  	kfree(dev);
  	return 0;
  }
-@@ -1100,6 +1146,9 @@ static int ar231x_ioctl(struct net_devic
+@@ -1104,6 +1150,9 @@ static int ar231x_ioctl(struct net_devic
  	struct ar231x_private *sp = netdev_priv(dev);
  	int ret;