+/*
+ * arch/arm/mach-orion5x/dt2-setup.c
+ *
+ * Freecom DataTank Gateway Setup
+ *
+ * Copyright (C) 2009 Zintis Petersons <Zintis.Petersons@abcsolutions.lv>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/pci.h>
+#include <linux/irq.h>
+#include <linux/mtd/physmap.h>
+#include <linux/mv643xx_eth.h>
+#include <linux/ethtool.h>
+#include <linux/if_ether.h>
+#include <net/dsa.h>
+#include <linux/ata_platform.h>
+#include <linux/i2c.h>
+#include <linux/reboot.h>
+#include <linux/interrupt.h>
+#include <asm/mach-types.h>
+#include <asm/gpio.h>
+#include <asm/leds.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/pci.h>
+#include <mach/orion5x.h>
+#include "common.h"
+#include "mpp.h"
+
+/*****************************************************************************
+ * DT2 local
+ ****************************************************************************/
+#include <asm/setup.h>
+#include "dt2-common.h"
+
+u32 mvUbootVer = 0;
+u32 mvTclk = 166666667;
+u32 mvSysclk = 200000000;
+u32 mvIsUsbHost = 1;
+u32 overEthAddr = 0;
+u32 gBoardId = -1;
+struct DT2_EEPROM_STRUCT dt2_eeprom;
+
+/*****************************************************************************
+ * DT2 Info
+ ****************************************************************************/
+/*
+ * PCI
+ */
+
+#define DT2_PCI_SLOT0_OFFS 7
+#define DT2_PCI_SLOT0_IRQ_A_PIN 3
+#define DT2_PCI_SLOT0_IRQ_B_PIN 2
+
+#define DT2_PIN_GPIO_SYNC 25
+#define DT2_PIN_GPIO_POWER 24
+#define DT2_PIN_GPIO_UNPLUG1 23
+#define DT2_PIN_GPIO_UNPLUG2 22
+#define DT2_PIN_GPIO_RESET 4
+
+#define DT2_NOR_BOOT_BASE 0xf4000000
+#define DT2_NOR_BOOT_SIZE SZ_512K
+
+#define DT2_LEDS_BASE 0xfa000000
+#define DT2_LEDS_SIZE SZ_1K
+
+/*****************************************************************************
+ * 512K NOR Flash on Device bus Boot CS
+ ****************************************************************************/
+
+static struct mtd_partition dt2_partitions[] = {
+ {
+ .name = "u-boot",
+ .size = 0x00080000,
+ .offset = 0,
+ },
+};
+
+static struct physmap_flash_data dt2_nor_flash_data = {
+ .width = 1, /* 8 bit bus width */
+ .parts = dt2_partitions,
+ .nr_parts = ARRAY_SIZE(dt2_partitions)
+};
+
+static struct resource dt2_nor_flash_resource = {
+ .flags = IORESOURCE_MEM,
+ .start = DT2_NOR_BOOT_BASE,
+ .end = DT2_NOR_BOOT_BASE + DT2_NOR_BOOT_SIZE - 1,
+};
+
+static struct platform_device dt2_nor_flash = {
+ .name = "physmap-flash",
+ .id = 0,
+ .dev = {
+ .platform_data = &dt2_nor_flash_data,
+ },
+ .resource = &dt2_nor_flash_resource,
+ .num_resources = 1,
+};
+
+/*****************************************************************************
+ * PCI
+ ****************************************************************************/
+
+void __init dt2_pci_preinit(void)
+{
+ int pin, irq;
+
+ /*
+ * Configure PCI GPIO IRQ pins
+ */
+ pin = DT2_PCI_SLOT0_IRQ_A_PIN;
+ if (gpio_request(pin, "PCI IntA") == 0) {
+ if (gpio_direction_input(pin) == 0) {
+ irq = gpio_to_irq(pin);
+ set_irq_type(irq, IRQ_TYPE_LEVEL_LOW);
+ printk (KERN_INFO "PCI IntA IRQ: %d\n", irq);
+ } else {
+ printk(KERN_ERR "dt2_pci_preinit failed to "
+ "set_irq_type pin %d\n", pin);
+ gpio_free(pin);
+ }
+ } else {
+ printk(KERN_ERR "dt2_pci_preinit failed to request gpio %d\n", pin);
+ }
+
+ pin = DT2_PCI_SLOT0_IRQ_B_PIN;
+ if (gpio_request(pin, "PCI IntB") == 0) {
+ if (gpio_direction_input(pin) == 0) {
+ irq = gpio_to_irq(pin);
+ set_irq_type(irq, IRQ_TYPE_LEVEL_LOW);
+ printk (KERN_INFO "PCI IntB IRQ: %d\n", irq);
+ } else {
+ printk(KERN_ERR "dt2_pci_preinit failed to "
+ "set_irq_type pin %d\n", pin);
+ gpio_free(pin);
+ }
+ } else {
+ printk(KERN_ERR "dt2_pci_preinit failed to gpio_request %d\n", pin);
+ }
+}
+
+static int __init dt2_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+{
+ int irq;
+
+ /*
+ * Check for devices with hard-wired IRQs.
+ */
+ irq = orion5x_pci_map_irq(dev, slot, pin);
+ if (irq != -1){
+ printk(KERN_INFO "orion5x_pci_map_irq: %d\n", irq);
+ return irq;
+ }
+
+ /*
+ * PCI IRQs are connected via GPIOs
+ */
+ switch (slot - DT2_PCI_SLOT0_OFFS) {
+ case 0:
+ if (pin == 1){
+ irq = gpio_to_irq(DT2_PCI_SLOT0_IRQ_A_PIN);
+ printk(KERN_INFO "dt2_pci_map_irq DT2_PCI_SLOT0_IRQ_A_PIN: %d\n", irq);
+ }
+ else {
+ irq = gpio_to_irq(DT2_PCI_SLOT0_IRQ_B_PIN);
+ printk(KERN_INFO "dt2_pci_map_irq DT2_PCI_SLOT0_IRQ_B_PIN: %d\n", irq);
+ }
+ default:
+ irq = -1;
+ printk(KERN_INFO "dt2_pci_map_irq IRQ: %d\n", irq);
+ }
+
+ return irq;
+}
+
+static struct hw_pci dt2_pci __initdata = {
+ .nr_controllers = 2,
+ .preinit = dt2_pci_preinit,
+ .swizzle = pci_std_swizzle,
+ .setup = orion5x_pci_sys_setup,
+ .scan = orion5x_pci_sys_scan_bus,
+ .map_irq = dt2_pci_map_irq,
+};
+
+static int __init dt2_pci_init(void)
+{
+ if (machine_is_dt2())
+ pci_common_init(&dt2_pci);
+
+ return 0;
+}
+
+subsys_initcall(dt2_pci_init);
+
+/*****************************************************************************
+ * Ethernet
+ ****************************************************************************/
+
+static struct mv643xx_eth_platform_data dt2_eth_data = {
+ .phy_addr = MV643XX_ETH_PHY_NONE,
+ .speed = SPEED_1000,
+ .duplex = DUPLEX_FULL,
+};
+
+static struct dsa_platform_data dt2_switch_data = {
+ .port_names[0] = "wan",
+ .port_names[1] = "lan1",
+ .port_names[2] = "lan2",
+ .port_names[3] = "cpu",
+ .port_names[4] = "lan3",
+ .port_names[5] = "lan4",
+};
+
+/*****************************************************************************
+ * RTC ISL1208 on I2C bus
+ ****************************************************************************/
+static struct i2c_board_info __initdata dt2_i2c_rtc = {
+ I2C_BOARD_INFO("isl1208", 0x6F),
+};
+
+/*****************************************************************************
+ * Sata
+ ****************************************************************************/
+static struct mv_sata_platform_data dt2_sata_data = {
+ .n_ports = 2,
+};
+
+/*****************************************************************************
+ * General Setup
+ ****************************************************************************/
+static struct orion5x_mpp_mode dt2_mpp_modes[] __initdata = {
+ { 0, MPP_GPIO }, // RTC interrupt
+ { 1, MPP_GPIO }, // 88e6131 interrupt
+ { 2, MPP_GPIO }, // PCI_intB
+ { 3, MPP_GPIO }, // PCI_intA
+ { 4, MPP_GPIO }, // reset button switch
+ { 5, MPP_GPIO },
+ { 6, MPP_GPIO },
+ { 7, MPP_GPIO },
+ { 8, MPP_GPIO },
+ { 9, MPP_GIGE }, /* GE_RXERR */
+ { 10, MPP_GPIO }, // usb
+ { 11, MPP_GPIO }, // usb
+ { 12, MPP_GIGE }, // GE_TXD[4]
+ { 13, MPP_GIGE }, // GE_TXD[5]
+ { 14, MPP_GIGE }, // GE_TXD[6]
+ { 15, MPP_GIGE }, // GE_TXD[7]
+ { 16, MPP_GIGE }, // GE_RXD[4]
+ { 17, MPP_GIGE }, // GE_RXD[5]
+ { 18, MPP_GIGE }, // GE_RXD[6]
+ { 19, MPP_GIGE }, // GE_RXD[7]
+ { -1 },
+};
+
+/*****************************************************************************
+ * LEDS
+ ****************************************************************************/
+static struct platform_device dt2_leds = {
+ .name = "dt2-led",
+ .id = -1,
+};
+
+/****************************************************************************
+ * GPIO key
+ ****************************************************************************/
+static irqreturn_t dt2_reset_handler(int irq, void *dev_id)
+{
+ /* This is the paper-clip reset which does an emergency reboot. */
+ printk(KERN_INFO "Restarting system.\n");
+ machine_restart(NULL);
+
+ /* This should never be reached. */
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t dt2_power_handler(int irq, void *dev_id)
+{
+ printk(KERN_INFO "Shutting down system.\n");
+ machine_power_off();
+ return IRQ_HANDLED;
+}
+
+static void __init dt2_init(void)
+{
+ DECLARE_MAC_BUF(mac_buf);
+ /*
+ * Setup basic Orion functions. Need to be called early.
+ */
+ orion5x_init();
+
+ orion5x_mpp_conf(dt2_mpp_modes);
+
+ /*
+ * Configure peripherals.
+ */
+ gpio_display();
+
+ orion5x_uart0_init();
+ orion5x_ehci0_init();
+ orion5x_ehci1_init();
+ orion5x_i2c_init();
+ orion5x_sata_init(&dt2_sata_data);
+ orion5x_xor_init();
+
+ printk(KERN_INFO "U-Boot parameters:\n");
+ printk(KERN_INFO "Sys Clk = %d, Tclk = %d, BoardID = 0x%02x\n", mvSysclk, mvTclk, gBoardId);
+
+ printk(KERN_INFO "Serial: %s\n", dt2_eeprom.fc.dt2_serial_number);
+ printk(KERN_INFO "Revision: %016x\n", dt2_eeprom.fc.dt2_revision);
+ printk(KERN_INFO "DT2: Using MAC address %s for port 0\n",
+ print_mac(mac_buf, dt2_eeprom.gw.mac_addr[0]));
+ printk(KERN_INFO "DT2: Using MAC address %s for port 1\n",
+ print_mac(mac_buf, dt2_eeprom.gw.mac_addr[1]));
+
+ orion5x_eth_init(&dt2_eth_data);
+ memcpy(dt2_eth_data.mac_addr, dt2_eeprom.gw.mac_addr[0], 6);
+ orion5x_eth_switch_init(&dt2_switch_data, NO_IRQ);
+
+ i2c_register_board_info(0, &dt2_i2c_rtc, 1);
+
+ orion5x_setup_dev_boot_win(DT2_NOR_BOOT_BASE, DT2_NOR_BOOT_SIZE);
+ platform_device_register(&dt2_nor_flash);
+
+ orion5x_setup_dev0_win(DT2_LEDS_BASE, DT2_LEDS_SIZE);
+ platform_device_register(&dt2_leds);
+
+ if (request_irq(gpio_to_irq(DT2_PIN_GPIO_RESET), &dt2_reset_handler,
+ IRQF_DISABLED | IRQF_TRIGGER_LOW,
+ "DT2: Reset button", NULL) < 0) {
+
+ printk("DT2: Reset Button IRQ %d not available\n",
+ gpio_to_irq(DT2_PIN_GPIO_RESET));
+ }
+
+ if (request_irq(gpio_to_irq(DT2_PIN_GPIO_POWER), &dt2_power_handler,
+ IRQF_DISABLED | IRQF_TRIGGER_LOW,
+ "DT2: Power button", NULL) < 0) {
+
+ printk(KERN_DEBUG "DT2: Power Button IRQ %d not available\n",
+ gpio_to_irq(DT2_PIN_GPIO_POWER));
+ }
+}
+
+static int __init parse_tag_dt2_uboot(const struct tag *t)
+{
+ struct tag_mv_uboot *mv_uboot;
+
+ // Get pointer to our block
+ mv_uboot = (struct tag_mv_uboot*)&t->u;
+ mvTclk = mv_uboot->tclk;
+ mvSysclk = mv_uboot->sysclk;
+ mvUbootVer = mv_uboot->uboot_version;
+ mvIsUsbHost = mv_uboot->isUsbHost;
+
+ // Some clock fixups
+ if(mvTclk == 166000000) mvTclk = 166666667;
+ else if(mvTclk == 133000000) mvTclk = 133333333;
+ else if(mvSysclk == 166000000) mvSysclk = 166666667;
+
+ gBoardId = (mvUbootVer & 0xff);
+
+ //DT2 specific data
+ memcpy(&dt2_eeprom, mv_uboot->dt2_eeprom, sizeof(struct DT2_EEPROM_STRUCT));
+
+ return 0;
+}
+__tagtable(ATAG_MV_UBOOT, parse_tag_dt2_uboot);
+
+/*
+ * This is OpenWrt specific fixup. It includes code from original "tag_fixup_mem32" to
+ * fixup bogus memory tags and also fixes kernel cmdline by adding " init=/etc/preinit"
+ * at the end. It is important to flash OpenWrt image from original Freecom firmware.
+ *
+ * Vanilla kernel should use "tag_fixup_mem32" function.
+ */
+void __init openwrt_fixup(struct machine_desc *mdesc, struct tag *t,
+ char **from, struct meminfo *meminfo)
+{
+ char *p = NULL;
+ static char openwrt_init_tag[] __initdata = " init=/etc/preinit";
+
+ for (; t->hdr.size; t = tag_next(t)){
+ /* Locate the Freecom cmdline */
+ if (t->hdr.tag == ATAG_CMDLINE) {
+ p = t->u.cmdline.cmdline;
+ printk("%s(%d): Found cmdline '%s' at 0x%0lx\n",
+ __FUNCTION__, __LINE__, p, (unsigned long)p);
+ }
+ /*
+ * Many orion-based systems have buggy bootloader implementations.
+ * This is a common fixup for bogus memory tags.
+ */
+ if (t->hdr.tag == ATAG_MEM &&
+ (!t->u.mem.size || t->u.mem.size & ~PAGE_MASK ||
+ t->u.mem.start & ~PAGE_MASK)) {
+ printk(KERN_WARNING
+ "Clearing invalid memory bank %dKB@0x%08x\n",
+ t->u.mem.size / 1024, t->u.mem.start);
+ t->hdr.tag = 0;
+ }
+ }
+
+ printk("%s(%d): End of table at 0x%0lx\n", __FUNCTION__, __LINE__, (unsigned long)t);
+
+ /* Overwrite the end of the table with a new cmdline tag. */
+ t->hdr.tag = ATAG_CMDLINE;
+ t->hdr.size =
+ (sizeof (struct tag_header) +
+ strlen(p) + strlen(openwrt_init_tag) + 1 + 4) >> 2;
+
+ strlcpy(t->u.cmdline.cmdline, p, COMMAND_LINE_SIZE);
+ strlcpy(t->u.cmdline.cmdline + strlen(p), openwrt_init_tag,
+ COMMAND_LINE_SIZE - strlen(p));
+
+ printk("%s(%d): New cmdline '%s' at 0x%0lx\n",
+ __FUNCTION__, __LINE__,
+ t->u.cmdline.cmdline, (unsigned long)t->u.cmdline.cmdline);
+
+ t = tag_next(t);
+
+ printk("%s(%d): New end of table at 0x%0lx\n", __FUNCTION__, __LINE__, (unsigned long)t);
+
+ t->hdr.tag = ATAG_NONE;
+ t->hdr.size = 0;
+}
+
+/* Warning: Freecom uses their own custom bootloader with mach-type (=1500) */
+MACHINE_START(DT2, "Freecom DataTank Gateway")
+ /* Maintainer: Zintis Petersons <Zintis.Petersons@abcsolutions.lv> */
+ .phys_io = ORION5X_REGS_PHYS_BASE,
+ .io_pg_offst = ((ORION5X_REGS_VIRT_BASE) >> 18) & 0xFFFC,
+ .boot_params = 0x00000100,
+ .init_machine = dt2_init,
+ .map_io = orion5x_map_io,
+ .init_irq = orion5x_init_irq,
+ .timer = &orion5x_timer,
+ .fixup = openwrt_fixup, //tag_fixup_mem32,
+MACHINE_END
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