MIPS: Alchemy: Add au1000-eth platform device

This patch makes the board code register the au1000-eth platform device. The
au1000-eth platform data can be overriden with the au1xxx_override_eth_cfg
function like it has to be done for the Bosporus board which uses a
different MAC/PHY setup.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
Cc: David Miller <davem@davemloft.net>
Cc: linux-mips@linux-mips.org
Cc: netdev@vger.kernel.org
Patchwork: http://patchwork.linux-mips.org/patch/618/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

3 files changed, 124 insertions, 0 deletions

diff --git a/arch/mips/alchemy/common/platform.c b/arch/mips/alchemy/common/platform.c
index 3be14b09157c..3fbe30c1fd9a 100644
--- a/arch/mips/alchemy/common/platform.c
+++ b/arch/mips/alchemy/common/platform.c
@@ -19,6 +19,7 @@
 #include <asm/mach-au1x00/au1xxx.h>
 #include <asm/mach-au1x00/au1xxx_dbdma.h>
 #include <asm/mach-au1x00/au1100_mmc.h>
+#include <asm/mach-au1x00/au1xxx_eth.h>
 
 #define PORT(_base, _irq)                                       \
         {                                                       \
@@ -326,6 +327,88 @@ static struct platform_device pbdb_smbus_device = {
 };
 #endif
 
+/* Macro to help defining the Ethernet MAC resources */
+#define MAC_RES(_base, _enable, _irq)                   \
+        {                                               \
+                .start  = CPHYSADDR(_base),             \
+                .end    = CPHYSADDR(_base + 0xffff),    \
+                .flags  = IORESOURCE_MEM,               \
+        },                                              \
+        {                                               \
+                .start  = CPHYSADDR(_enable),           \
+                .end    = CPHYSADDR(_enable + 0x3),     \
+                .flags  = IORESOURCE_MEM,               \
+        },                                              \
+        {                                               \
+                .start  = _irq,                         \
+                .end    = _irq,                         \
+                .flags  = IORESOURCE_IRQ                \
+        }
+
+static struct resource au1xxx_eth0_resources[] = {
+#if defined(CONFIG_SOC_AU1000)
+        MAC_RES(AU1000_ETH0_BASE, AU1000_MAC0_ENABLE, AU1000_MAC0_DMA_INT),
+#elif defined(CONFIG_SOC_AU1100)
+        MAC_RES(AU1100_ETH0_BASE, AU1100_MAC0_ENABLE, AU1100_MAC0_DMA_INT),
+#elif defined(CONFIG_SOC_AU1550)
+        MAC_RES(AU1550_ETH0_BASE, AU1550_MAC0_ENABLE, AU1550_MAC0_DMA_INT),
+#elif defined(CONFIG_SOC_AU1500)
+        MAC_RES(AU1500_ETH0_BASE, AU1500_MAC0_ENABLE, AU1500_MAC0_DMA_INT),
+#endif
+};
+
+static struct resource au1xxx_eth1_resources[] = {
+#if defined(CONFIG_SOC_AU1000)
+        MAC_RES(AU1000_ETH1_BASE, AU1000_MAC1_ENABLE, AU1000_MAC1_DMA_INT),
+#elif defined(CONFIG_SOC_AU1550)
+        MAC_RES(AU1550_ETH1_BASE, AU1550_MAC1_ENABLE, AU1550_MAC1_DMA_INT),
+#elif defined(CONFIG_SOC_AU1500)
+        MAC_RES(AU1500_ETH1_BASE, AU1500_MAC1_ENABLE, AU1500_MAC1_DMA_INT),
+#endif
+};
+
+static struct au1000_eth_platform_data au1xxx_eth0_platform_data = {
+        .phy1_search_mac0 = 1,
+};
+
+static struct platform_device au1xxx_eth0_device = {
+        .name           = "au1000-eth",
+        .id             = 0,
+        .num_resources  = ARRAY_SIZE(au1xxx_eth0_resources),
+        .resource       = au1xxx_eth0_resources,
+        .dev.platform_data = &au1xxx_eth0_platform_data,
+};
+
+#ifndef CONFIG_SOC_AU1100
+static struct au1000_eth_platform_data au1xxx_eth1_platform_data = {
+        .phy1_search_mac0 = 1,
+};
+
+static struct platform_device au1xxx_eth1_device = {
+        .name           = "au1000-eth",
+        .id             = 1,
+        .num_resources  = ARRAY_SIZE(au1xxx_eth1_resources),
+        .resource       = au1xxx_eth1_resources,
+        .dev.platform_data = &au1xxx_eth1_platform_data,
+};
+#endif
+
+void __init au1xxx_override_eth_cfg(unsigned int port,
+                        struct au1000_eth_platform_data *eth_data)
+{
+        if (!eth_data || port > 1)
+                return;
+
+        if (port == 0)
+                memcpy(&au1xxx_eth0_platform_data, eth_data,
+                        sizeof(struct au1000_eth_platform_data));
+#ifndef CONFIG_SOC_AU1100
+        else
+                memcpy(&au1xxx_eth1_platform_data, eth_data,
+                        sizeof(struct au1000_eth_platform_data));
+#endif
+}
+
 static struct platform_device *au1xxx_platform_devices[] __initdata = {
         &au1xx0_uart_device,
         &au1xxx_usb_ohci_device,
@@ -345,6 +428,7 @@ static struct platform_device *au1xxx_platform_devices[] __initdata = {
 #ifdef SMBUS_PSC_BASE
         &pbdb_smbus_device,
 #endif
+        &au1xxx_eth0_device,
 };
 
 static int __init au1xxx_platform_init(void)
@@ -356,6 +440,12 @@ static int __init au1xxx_platform_init(void)
         for (i = 0; au1x00_uart_data[i].flags; i++)
                 au1x00_uart_data[i].uartclk = uartclk;
 
+#ifndef CONFIG_SOC_AU1100
+        /* Register second MAC if enabled in pinfunc */
+        if (!(au_readl(SYS_PINFUNC) & (u32)SYS_PF_NI2))
+                platform_device_register(&au1xxx_eth1_device);
+#endif
+
         return platform_add_devices(au1xxx_platform_devices,
                                     ARRAY_SIZE(au1xxx_platform_devices));
 }
diff --git a/arch/mips/alchemy/devboards/db1x00/board_setup.c b/arch/mips/alchemy/devboards/db1x00/board_setup.c
index 7aee14d78eea..b490efff4dca 100644
--- a/arch/mips/alchemy/devboards/db1x00/board_setup.c
+++ b/arch/mips/alchemy/devboards/db1x00/board_setup.c
@@ -32,6 +32,7 @@
 #include <linux/interrupt.h>
 
 #include <asm/mach-au1x00/au1000.h>
+#include <asm/mach-au1x00/au1xxx_eth.h>
 #include <asm/mach-db1x00/db1x00.h>
 #include <asm/mach-db1x00/bcsr.h>
 
@@ -44,12 +45,26 @@ char irq_tab_alchemy[][5] __initdata = {
 };
 #endif
 
+/*
+ * Micrel/Kendin 5 port switch attached to MAC0,
+ * MAC0 is associated with PHY address 5 (== WAN port)
+ * MAC1 is not associated with any PHY, since it's connected directly
+ * to the switch.
+ * no interrupts are used
+ */
+static struct au1000_eth_platform_data eth0_pdata = {
+        .phy_static_config      = 1,
+        .phy_addr               = 5,
+};
+
 #ifdef CONFIG_MIPS_BOSPORUS
 char irq_tab_alchemy[][5] __initdata = {
         [11] = { -1, AU1500_PCI_INTA, AU1500_PCI_INTB, 0xff, 0xff }, /* IDSEL 11 - miniPCI  */
         [12] = { -1, AU1500_PCI_INTA, 0xff, 0xff, 0xff }, /* IDSEL 12 - SN1741   */
         [13] = { -1, AU1500_PCI_INTA, AU1500_PCI_INTB, AU1500_PCI_INTC, AU1500_PCI_INTD }, /* IDSEL 13 - PCI slot */
 };
+
+
 #endif
 
 #ifdef CONFIG_MIPS_MIRAGE
@@ -103,6 +118,8 @@ void __init board_setup(void)
         printk(KERN_INFO "AMD Alchemy Au1100/Db1100 Board\n");
 #endif
 #ifdef CONFIG_MIPS_BOSPORUS
+        au1xxx_override_eth_cfg(0, &eth0_pdata);
+
         printk(KERN_INFO "AMD Alchemy Bosporus Board\n");
 #endif
 #ifdef CONFIG_MIPS_MIRAGE
diff --git a/arch/mips/include/asm/mach-au1x00/au1xxx_eth.h b/arch/mips/include/asm/mach-au1x00/au1xxx_eth.h
new file mode 100644
index 000000000000..bae9b758fcde
--- /dev/null
+++ b/arch/mips/include/asm/mach-au1x00/au1xxx_eth.h
@@ -0,0 +1,17 @@
+#ifndef __AU1X00_ETH_DATA_H
+#define __AU1X00_ETH_DATA_H
+
+/* Platform specific PHY configuration passed to the MAC driver */
+struct au1000_eth_platform_data {
+        int phy_static_config;
+        int phy_search_highest_addr;
+        int phy1_search_mac0;
+        int phy_addr;
+        int phy_busid;
+        int phy_irq;
+};
+
+void __init au1xxx_override_eth_cfg(unsigned port,
+                        struct au1000_eth_platform_data *eth_data);
+
+#endif /* __AU1X00_ETH_DATA_H */