Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc

* git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (43 commits)
  [POWERPC] Use little-endian bit from firmware ibm,pa-features property
  [POWERPC] Make sure smp_processor_id works very early in boot
  [POWERPC] U4 DART improvements
  [POWERPC] todc: add support for Time-Of-Day-Clock
  [POWERPC] Make lparcfg.c work when both iseries and pseries are selected
  [POWERPC] Fix idr locking in init_new_context
  [POWERPC] mpc7448hpc2 (taiga) board config file
  [POWERPC] Add tsi108 pci and platform device data register function
  [POWERPC] Add general support for mpc7448hpc2 (Taiga) platform
  [POWERPC] Correct the MAX_CONTEXT definition
  powerpc: minor cleanups for mpc86xx
  [POWERPC] Make sure we select CONFIG_NEW_LEDS if ADB_PMU_LED is set
  [POWERPC] Simplify the code defining the 64-bit CPU features
  [POWERPC] powerpc: kconfig warning fix
  [POWERPC] Consolidate some of kernel/misc*.S
  [POWERPC] Remove unused function call_with_mmu_off
  [POWERPC] update asm-powerpc/time.h
  [POWERPC] Clean up it_lp_queue.h
  [POWERPC] Skip the "copy down" of the kernel if it is already at zero.
  [POWERPC] Add the use of the firmware soft-reset-nmi to kdump.
  ...

6 files changed, 999 insertions, 7 deletions

diff --git a/arch/powerpc/sysdev/Makefile b/arch/powerpc/sysdev/Makefile
index cef95b023730..054bd8b41ef5 100644
--- a/arch/powerpc/sysdev/Makefile
+++ b/arch/powerpc/sysdev/Makefile
@@ -12,3 +12,5 @@ obj-$(CONFIG_U3_DART)		+= dart_iommu.o
 obj-$(CONFIG_MMIO_NVRAM)        += mmio_nvram.o
 obj-$(CONFIG_PPC_83xx)          += ipic.o
 obj-$(CONFIG_FSL_SOC)           += fsl_soc.o
+obj-$(CONFIG_PPC_TODC)          += todc.o
+obj-$(CONFIG_TSI108_BRIDGE)     += tsi108_pci.o tsi108_dev.o
diff --git a/arch/powerpc/sysdev/dart.h b/arch/powerpc/sysdev/dart.h
index c2d05763ccbe..1c8817c4835e 100644
--- a/arch/powerpc/sysdev/dart.h
+++ b/arch/powerpc/sysdev/dart.h
@@ -47,8 +47,12 @@
 /* U4 registers */
 #define DART_BASE_U4_BASE_MASK  0xffffff
 #define DART_BASE_U4_BASE_SHIFT 0
-#define DART_CNTL_U4_FLUSHTLB   0x20000000
 #define DART_CNTL_U4_ENABLE     0x80000000
+#define DART_CNTL_U4_IONE       0x40000000
+#define DART_CNTL_U4_FLUSHTLB   0x20000000
+#define DART_CNTL_U4_IDLE       0x10000000
+#define DART_CNTL_U4_PAR_EN     0x08000000
+#define DART_CNTL_U4_IONE_MASK  0x07ffffff
 #define DART_SIZE_U4_SIZE_MASK  0x1fff
 #define DART_SIZE_U4_SIZE_SHIFT 0
 
diff --git a/arch/powerpc/sysdev/dart_iommu.c b/arch/powerpc/sysdev/dart_iommu.c
index 6232091cc72b..7c7f34ce4986 100644
--- a/arch/powerpc/sysdev/dart_iommu.c
+++ b/arch/powerpc/sysdev/dart_iommu.c
@@ -101,8 +101,8 @@ retry:
         if (l == (1L << limit)) {
                 if (limit < 4) {
                         limit++;
-                        reg = DART_IN(DART_CNTL);
-                        reg &= ~inv_bit;
+                        reg = DART_IN(DART_CNTL);
+                        reg &= ~inv_bit;
                         DART_OUT(DART_CNTL, reg);
                         goto retry;
                 } else
@@ -111,11 +111,39 @@ retry:
         }
 }
 
+static inline void dart_tlb_invalidate_one(unsigned long bus_rpn)
+{
+        unsigned int reg;
+        unsigned int l, limit;
+
+        reg = DART_CNTL_U4_ENABLE | DART_CNTL_U4_IONE |
+                (bus_rpn & DART_CNTL_U4_IONE_MASK);
+        DART_OUT(DART_CNTL, reg);
+
+        limit = 0;
+wait_more:
+        l = 0;
+        while ((DART_IN(DART_CNTL) & DART_CNTL_U4_IONE) && l < (1L << limit)) {
+                rmb();
+                l++;
+        }
+
+        if (l == (1L << limit)) {
+                if (limit < 4) {
+                        limit++;
+                        goto wait_more;
+                } else
+                        panic("DART: TLB did not flush after waiting a long "
+                              "time. Buggy U4 ?");
+        }
+}
+
 static void dart_flush(struct iommu_table *tbl)
 {
-        if (dart_dirty)
+        if (dart_dirty) {
                 dart_tlb_invalidate_all();
-        dart_dirty = 0;
+                dart_dirty = 0;
+        }
 }
 
 static void dart_build(struct iommu_table *tbl, long index,
@@ -124,6 +152,7 @@ static void dart_build(struct iommu_table *tbl, long index,
 {
         unsigned int *dp;
         unsigned int rpn;
+        long l;
 
         DBG("dart: build at: %lx, %lx, addr: %x\n", index, npages, uaddr);
 
@@ -135,7 +164,8 @@ static void dart_build(struct iommu_table *tbl, long index,
         /* On U3, all memory is contigous, so we can move this
          * out of the loop.
          */
-        while (npages--) {
+        l = npages;
+        while (l--) {
                 rpn = virt_to_abs(uaddr) >> DART_PAGE_SHIFT;
 
                 *(dp++) = DARTMAP_VALID | (rpn & DARTMAP_RPNMASK);
@@ -143,7 +173,14 @@ static void dart_build(struct iommu_table *tbl, long index,
                 uaddr += DART_PAGE_SIZE;
         }
 
-        dart_dirty = 1;
+        if (dart_is_u4) {
+                rpn = index;
+                mb(); /* make sure all updates have reached memory */
+                while (npages--)
+                        dart_tlb_invalidate_one(rpn++);
+        } else {
+                dart_dirty = 1;
+        }
 }
 
 
diff --git a/arch/powerpc/sysdev/todc.c b/arch/powerpc/sysdev/todc.c
new file mode 100644
index 000000000000..0a65980efb50
--- /dev/null
+++ b/arch/powerpc/sysdev/todc.c
@@ -0,0 +1,392 @@
+/*
+ * Time of Day Clock support for the M48T35, M48T37, M48T59, and MC146818
+ * Real Time Clocks/Timekeepers.
+ *
+ * Author: Mark A. Greer <mgreer@mvista.com>
+ *
+ * 2001-2004 (c) MontaVista, Software, Inc.  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/errno.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/time.h>
+#include <linux/timex.h>
+#include <linux/bcd.h>
+#include <linux/mc146818rtc.h>
+
+#include <asm/machdep.h>
+#include <asm/io.h>
+#include <asm/time.h>
+#include <asm/todc.h>
+
+/*
+ * Depending on the hardware on your board and your board design, the
+ * RTC/NVRAM may be accessed either directly (like normal memory) or via
+ * address/data registers.  If your board uses the direct method, set
+ * 'nvram_data' to the base address of your nvram and leave 'nvram_as0' and
+ * 'nvram_as1' NULL.  If your board uses address/data regs to access nvram,
+ * set 'nvram_as0' to the address of the lower byte, set 'nvram_as1' to the
+ * address of the upper byte (leave NULL if using mc146818), and set
+ * 'nvram_data' to the address of the 8-bit data register.
+ *
+ * Note: Even though the documentation for the various RTC chips say that it
+ *       take up to a second before it starts updating once the 'R' bit is
+ *       cleared, they always seem to update even though we bang on it many
+ *       times a second.  This is true, except for the Dallas Semi 1746/1747
+ *       (possibly others).  Those chips seem to have a real problem whenever
+ *       we set the 'R' bit before reading them, they basically stop counting.
+ *                                              --MAG
+ */
+
+/*
+ * 'todc_info' should be initialized in your *_setup.c file to
+ * point to a fully initialized 'todc_info_t' structure.
+ * This structure holds all the register offsets for your particular
+ * TODC/RTC chip.
+ * TODC_ALLOC()/TODC_INIT() will allocate and initialize this table for you.
+ */
+
+#ifdef  RTC_FREQ_SELECT
+#undef  RTC_FREQ_SELECT
+#define RTC_FREQ_SELECT         control_b       /* Register A */
+#endif
+
+#ifdef  RTC_CONTROL
+#undef  RTC_CONTROL
+#define RTC_CONTROL             control_a       /* Register B */
+#endif
+
+#ifdef  RTC_INTR_FLAGS
+#undef  RTC_INTR_FLAGS
+#define RTC_INTR_FLAGS          watchdog        /* Register C */
+#endif
+
+#ifdef  RTC_VALID
+#undef  RTC_VALID
+#define RTC_VALID               interrupts      /* Register D */
+#endif
+
+/* Access routines when RTC accessed directly (like normal memory) */
+u_char
+todc_direct_read_val(int addr)
+{
+        return readb((void __iomem *)(todc_info->nvram_data + addr));
+}
+
+void
+todc_direct_write_val(int addr, unsigned char val)
+{
+        writeb(val, (void __iomem *)(todc_info->nvram_data + addr));
+        return;
+}
+
+/* Access routines for accessing m48txx type chips via addr/data regs */
+u_char
+todc_m48txx_read_val(int addr)
+{
+        outb(addr, todc_info->nvram_as0);
+        outb(addr>>todc_info->as0_bits, todc_info->nvram_as1);
+        return inb(todc_info->nvram_data);
+}
+
+void
+todc_m48txx_write_val(int addr, unsigned char val)
+{
+        outb(addr, todc_info->nvram_as0);
+        outb(addr>>todc_info->as0_bits, todc_info->nvram_as1);
+        outb(val, todc_info->nvram_data);
+        return;
+}
+
+/* Access routines for accessing mc146818 type chips via addr/data regs */
+u_char
+todc_mc146818_read_val(int addr)
+{
+        outb_p(addr, todc_info->nvram_as0);
+        return inb_p(todc_info->nvram_data);
+}
+
+void
+todc_mc146818_write_val(int addr, unsigned char val)
+{
+        outb_p(addr, todc_info->nvram_as0);
+        outb_p(val, todc_info->nvram_data);
+}
+
+
+/*
+ * Routines to make RTC chips with NVRAM buried behind an addr/data pair
+ * have the NVRAM and clock regs appear at the same level.
+ * The NVRAM will appear to start at addr 0 and the clock regs will appear
+ * to start immediately after the NVRAM (actually, start at offset
+ * todc_info->nvram_size).
+ */
+static inline u_char
+todc_read_val(int addr)
+{
+        u_char  val;
+
+        if (todc_info->sw_flags & TODC_FLAG_2_LEVEL_NVRAM) {
+                if (addr < todc_info->nvram_size) { /* NVRAM */
+                        ppc_md.rtc_write_val(todc_info->nvram_addr_reg, addr);
+                        val = ppc_md.rtc_read_val(todc_info->nvram_data_reg);
+                } else { /* Clock Reg */
+                        addr -= todc_info->nvram_size;
+                        val = ppc_md.rtc_read_val(addr);
+                }
+        } else
+                val = ppc_md.rtc_read_val(addr);
+
+        return val;
+}
+
+static inline void
+todc_write_val(int addr, u_char val)
+{
+        if (todc_info->sw_flags & TODC_FLAG_2_LEVEL_NVRAM) {
+                if (addr < todc_info->nvram_size) { /* NVRAM */
+                        ppc_md.rtc_write_val(todc_info->nvram_addr_reg, addr);
+                        ppc_md.rtc_write_val(todc_info->nvram_data_reg, val);
+                } else { /* Clock Reg */
+                        addr -= todc_info->nvram_size;
+                        ppc_md.rtc_write_val(addr, val);
+                }
+        } else
+                ppc_md.rtc_write_val(addr, val);
+}
+
+/*
+ * TODC routines
+ *
+ * There is some ugly stuff in that there are assumptions for the mc146818.
+ *
+ * Assumptions:
+ *      - todc_info->control_a has the offset as mc146818 Register B reg
+ *      - todc_info->control_b has the offset as mc146818 Register A reg
+ *      - m48txx control reg's write enable or 'W' bit is same as
+ *        mc146818 Register B 'SET' bit (i.e., 0x80)
+ *
+ * These assumptions were made to make the code simpler.
+ */
+long __init
+todc_time_init(void)
+{
+        u_char  cntl_b;
+
+        if (!ppc_md.rtc_read_val)
+                ppc_md.rtc_read_val = ppc_md.nvram_read_val;
+        if (!ppc_md.rtc_write_val)
+                ppc_md.rtc_write_val = ppc_md.nvram_write_val;
+
+        cntl_b = todc_read_val(todc_info->control_b);
+
+        if (todc_info->rtc_type == TODC_TYPE_MC146818) {
+                if ((cntl_b & 0x70) != 0x20) {
+                        printk(KERN_INFO "TODC real-time-clock was stopped."
+                                "  Now starting...");
+                        cntl_b &= ~0x70;
+                        cntl_b |= 0x20;
+                }
+
+                todc_write_val(todc_info->control_b, cntl_b);
+        } else if (todc_info->rtc_type == TODC_TYPE_DS17285) {
+                u_char mode;
+
+                mode = todc_read_val(TODC_TYPE_DS17285_CNTL_A);
+                /* Make sure countdown clear is not set */
+                mode &= ~0x40;
+                /* Enable oscillator, extended register set */
+                mode |= 0x30;
+                todc_write_val(TODC_TYPE_DS17285_CNTL_A, mode);
+
+        } else if (todc_info->rtc_type == TODC_TYPE_DS1501) {
+                u_char  month;
+
+                todc_info->enable_read = TODC_DS1501_CNTL_B_TE;
+                todc_info->enable_write = TODC_DS1501_CNTL_B_TE;
+
+                month = todc_read_val(todc_info->month);
+
+                if ((month & 0x80) == 0x80) {
+                        printk(KERN_INFO "TODC %s %s\n",
+                                "real-time-clock was stopped.",
+                                "Now starting...");
+                        month &= ~0x80;
+                        todc_write_val(todc_info->month, month);
+                }
+
+                cntl_b &= ~TODC_DS1501_CNTL_B_TE;
+                todc_write_val(todc_info->control_b, cntl_b);
+        } else { /* must be a m48txx type */
+                u_char  cntl_a;
+
+                todc_info->enable_read = TODC_MK48TXX_CNTL_A_R;
+                todc_info->enable_write = TODC_MK48TXX_CNTL_A_W;
+
+                cntl_a = todc_read_val(todc_info->control_a);
+
+                /* Check & clear STOP bit in control B register */
+                if (cntl_b & TODC_MK48TXX_DAY_CB) {
+                        printk(KERN_INFO "TODC %s %s\n",
+                                "real-time-clock was stopped.",
+                                "Now starting...");
+
+                        cntl_a |= todc_info->enable_write;
+                        cntl_b &= ~TODC_MK48TXX_DAY_CB;/* Start Oscil */
+
+                        todc_write_val(todc_info->control_a, cntl_a);
+                        todc_write_val(todc_info->control_b, cntl_b);
+                }
+
+                /* Make sure READ & WRITE bits are cleared. */
+                cntl_a &= ~(todc_info->enable_write | todc_info->enable_read);
+                todc_write_val(todc_info->control_a, cntl_a);
+        }
+
+        return 0;
+}
+
+/*
+ * There is some ugly stuff in that there are assumptions that for a mc146818,
+ * the todc_info->control_a has the offset of the mc146818 Register B reg and
+ * that the register'ss 'SET' bit is the same as the m48txx's write enable
+ * bit in the control register of the m48txx (i.e., 0x80).
+ *
+ * It was done to make the code look simpler.
+ */
+void
+todc_get_rtc_time(struct rtc_time *tm)
+{
+        uint    year = 0, mon = 0, mday = 0, hour = 0, min = 0, sec = 0;
+        uint    limit, i;
+        u_char  save_control, uip = 0;
+        extern void GregorianDay(struct rtc_time *);
+
+        spin_lock(&rtc_lock);
+        save_control = todc_read_val(todc_info->control_a);
+
+        if (todc_info->rtc_type != TODC_TYPE_MC146818) {
+                limit = 1;
+
+                switch (todc_info->rtc_type) {
+                case TODC_TYPE_DS1553:
+                case TODC_TYPE_DS1557:
+                case TODC_TYPE_DS1743:
+                case TODC_TYPE_DS1746:  /* XXXX BAD HACK -> FIX */
+                case TODC_TYPE_DS1747:
+                case TODC_TYPE_DS17285:
+                        break;
+                default:
+                        todc_write_val(todc_info->control_a,
+                                (save_control | todc_info->enable_read));
+                }
+        } else
+                limit = 100000000;
+
+        for (i=0; i<limit; i++) {
+                if (todc_info->rtc_type == TODC_TYPE_MC146818)
+                        uip = todc_read_val(todc_info->RTC_FREQ_SELECT);
+
+                sec = todc_read_val(todc_info->seconds) & 0x7f;
+                min = todc_read_val(todc_info->minutes) & 0x7f;
+                hour = todc_read_val(todc_info->hours) & 0x3f;
+                mday = todc_read_val(todc_info->day_of_month) & 0x3f;
+                mon = todc_read_val(todc_info->month) & 0x1f;
+                year = todc_read_val(todc_info->year) & 0xff;
+
+                if (todc_info->rtc_type == TODC_TYPE_MC146818) {
+                        uip |= todc_read_val(todc_info->RTC_FREQ_SELECT);
+                        if ((uip & RTC_UIP) == 0)
+                                break;
+                }
+        }
+
+        if (todc_info->rtc_type != TODC_TYPE_MC146818) {
+                switch (todc_info->rtc_type) {
+                case TODC_TYPE_DS1553:
+                case TODC_TYPE_DS1557:
+                case TODC_TYPE_DS1743:
+                case TODC_TYPE_DS1746:  /* XXXX BAD HACK -> FIX */
+                case TODC_TYPE_DS1747:
+                case TODC_TYPE_DS17285:
+                        break;
+                default:
+                        save_control &= ~(todc_info->enable_read);
+                        todc_write_val(todc_info->control_a, save_control);
+                }
+        }
+        spin_unlock(&rtc_lock);
+
+        if ((todc_info->rtc_type != TODC_TYPE_MC146818)
+                        || ((save_control & RTC_DM_BINARY) == 0)
+                        || RTC_ALWAYS_BCD) {
+                BCD_TO_BIN(sec);
+                BCD_TO_BIN(min);
+                BCD_TO_BIN(hour);
+                BCD_TO_BIN(mday);
+                BCD_TO_BIN(mon);
+                BCD_TO_BIN(year);
+        }
+
+        if ((year + 1900) < 1970) {
+                year += 100;
+        }
+
+        tm->tm_sec = sec;
+        tm->tm_min = min;
+        tm->tm_hour = hour;
+        tm->tm_mday = mday;
+        tm->tm_mon = mon;
+        tm->tm_year = year;
+
+        GregorianDay(tm);
+}
+
+int
+todc_set_rtc_time(struct rtc_time *tm)
+{
+        u_char save_control, save_freq_select = 0;
+
+        spin_lock(&rtc_lock);
+        save_control = todc_read_val(todc_info->control_a);
+
+        /* Assuming MK48T59_RTC_CA_WRITE & RTC_SET are equal */
+        todc_write_val(todc_info->control_a,
+                (save_control | todc_info->enable_write));
+        save_control &= ~(todc_info->enable_write); /* in case it was set */
+
+        if (todc_info->rtc_type == TODC_TYPE_MC146818) {
+                save_freq_select = todc_read_val(todc_info->RTC_FREQ_SELECT);
+                todc_write_val(todc_info->RTC_FREQ_SELECT,
+                        save_freq_select | RTC_DIV_RESET2);
+        }
+
+        if ((todc_info->rtc_type != TODC_TYPE_MC146818)
+                        || ((save_control & RTC_DM_BINARY) == 0)
+                        || RTC_ALWAYS_BCD) {
+                BIN_TO_BCD(tm->tm_sec);
+                BIN_TO_BCD(tm->tm_min);
+                BIN_TO_BCD(tm->tm_hour);
+                BIN_TO_BCD(tm->tm_mon);
+                BIN_TO_BCD(tm->tm_mday);
+                BIN_TO_BCD(tm->tm_year);
+        }
+
+        todc_write_val(todc_info->seconds, tm->tm_sec);
+        todc_write_val(todc_info->minutes, tm->tm_min);
+        todc_write_val(todc_info->hours, tm->tm_hour);
+        todc_write_val(todc_info->month, tm->tm_mon);
+        todc_write_val(todc_info->day_of_month, tm->tm_mday);
+        todc_write_val(todc_info->year, tm->tm_year);
+
+        todc_write_val(todc_info->control_a, save_control);
+
+        if (todc_info->rtc_type == TODC_TYPE_MC146818)
+                todc_write_val(todc_info->RTC_FREQ_SELECT, save_freq_select);
+
+        spin_unlock(&rtc_lock);
+        return 0;
+}
diff --git a/arch/powerpc/sysdev/tsi108_dev.c b/arch/powerpc/sysdev/tsi108_dev.c
new file mode 100644
index 000000000000..26a0cc820cde
--- /dev/null
+++ b/arch/powerpc/sysdev/tsi108_dev.c
@@ -0,0 +1,145 @@
+/*
+ * tsi108/109 device setup code
+ *
+ * Maintained by Roy Zang < tie-fei.zang@freescale.com >
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/config.h>
+#include <linux/stddef.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/errno.h>
+#include <linux/major.h>
+#include <linux/delay.h>
+#include <linux/irq.h>
+#include <linux/module.h>
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <asm/tsi108.h>
+
+#include <asm/system.h>
+#include <asm/atomic.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/prom.h>
+#include <mm/mmu_decl.h>
+
+#undef DEBUG
+
+#ifdef DEBUG
+#define DBG(fmt...) do { printk(fmt); } while(0)
+#else
+#define DBG(fmt...) do { } while(0)
+#endif
+
+static phys_addr_t tsi108_csr_base = -1;
+
+phys_addr_t get_csrbase(void)
+{
+        struct device_node *tsi;
+
+        if (tsi108_csr_base != -1)
+                return tsi108_csr_base;
+
+        tsi = of_find_node_by_type(NULL, "tsi-bridge");
+        if (tsi) {
+                unsigned int size;
+                void *prop = get_property(tsi, "reg", &size);
+                tsi108_csr_base = of_translate_address(tsi, prop);
+                of_node_put(tsi);
+        };
+        return tsi108_csr_base;
+}
+
+u32 get_vir_csrbase(void)
+{
+        return (u32) (ioremap(get_csrbase(), 0x10000));
+}
+
+EXPORT_SYMBOL(get_csrbase);
+EXPORT_SYMBOL(get_vir_csrbase);
+
+static int __init tsi108_eth_of_init(void)
+{
+        struct device_node *np;
+        unsigned int i;
+        struct platform_device *tsi_eth_dev;
+        struct resource res;
+        int ret;
+
+        for (np = NULL, i = 0;
+             (np = of_find_compatible_node(np, "network", "tsi-ethernet")) != NULL;
+             i++) {
+                struct resource r[2];
+                struct device_node *phy;
+                hw_info tsi_eth_data;
+                unsigned int *id;
+                unsigned int *phy_id;
+                void *mac_addr;
+                phandle *ph;
+
+                memset(r, 0, sizeof(r));
+                memset(&tsi_eth_data, 0, sizeof(tsi_eth_data));
+
+                ret = of_address_to_resource(np, 0, &r[0]);
+                DBG("%s: name:start->end = %s:0x%lx-> 0x%lx\n",
+                        __FUNCTION__,r[0].name, r[0].start, r[0].end);
+                if (ret)
+                        goto err;
+
+                r[1].name = "tx";
+                r[1].start = np->intrs[0].line;
+                r[1].end = np->intrs[0].line;
+                r[1].flags = IORESOURCE_IRQ;
+
+                tsi_eth_dev =
+                    platform_device_register_simple("tsi-ethernet", i, &r[0],
+                                                    np->n_intrs + 1);
+
+                if (IS_ERR(tsi_eth_dev)) {
+                        ret = PTR_ERR(tsi_eth_dev);
+                        goto err;
+                }
+
+                mac_addr = get_property(np, "address", NULL);
+                memcpy(tsi_eth_data.mac_addr, mac_addr, 6);
+
+                ph = (phandle *) get_property(np, "phy-handle", NULL);
+                phy = of_find_node_by_phandle(*ph);
+
+                if (phy == NULL) {
+                        ret = -ENODEV;
+                        goto unreg;
+                }
+
+                id = (u32 *) get_property(phy, "reg", NULL);
+                phy_id = (u32 *) get_property(phy, "phy-id", NULL);
+                ret = of_address_to_resource(phy, 0, &res);
+                if (ret) {
+                        of_node_put(phy);
+                        goto unreg;
+                }
+                tsi_eth_data.regs = r[0].start;
+                tsi_eth_data.phyregs = res.start;
+                tsi_eth_data.phy = *phy_id;
+                tsi_eth_data.irq_num = np->intrs[0].line;
+                of_node_put(phy);
+                ret =
+                    platform_device_add_data(tsi_eth_dev, &tsi_eth_data,
+                                             sizeof(hw_info));
+                if (ret)
+                        goto unreg;
+        }
+        return 0;
+unreg:
+        platform_device_unregister(tsi_eth_dev);
+err:
+        return ret;
+}
+
+arch_initcall(tsi108_eth_of_init);
diff --git a/arch/powerpc/sysdev/tsi108_pci.c b/arch/powerpc/sysdev/tsi108_pci.c
new file mode 100644
index 000000000000..3265d54c82ed
--- /dev/null
+++ b/arch/powerpc/sysdev/tsi108_pci.c
@@ -0,0 +1,412 @@
+/*
+ * Common routines for Tundra Semiconductor TSI108 host bridge.
+ *
+ * 2004-2005 (c) Tundra Semiconductor Corp.
+ * Author: Alex Bounine (alexandreb@tundra.com)
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/slab.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+
+
+#include <asm/byteorder.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/uaccess.h>
+#include <asm/machdep.h>
+#include <asm/pci-bridge.h>
+#include <asm/tsi108.h>
+#include <asm/tsi108_irq.h>
+#include <asm/prom.h>
+
+#undef DEBUG
+#ifdef DEBUG
+#define DBG(x...) printk(x)
+#else
+#define DBG(x...)
+#endif
+
+#define tsi_mk_config_addr(bus, devfunc, offset) \
+        ((((bus)<<16) | ((devfunc)<<8) | (offset & 0xfc)) + tsi108_pci_cfg_base)
+
+u32 tsi108_pci_cfg_base;
+u32 tsi108_csr_vir_base;
+
+extern u32 get_vir_csrbase(void);
+extern u32 tsi108_read_reg(u32 reg_offset);
+extern void tsi108_write_reg(u32 reg_offset, u32 val);
+
+int
+tsi108_direct_write_config(struct pci_bus *bus, unsigned int devfunc,
+                           int offset, int len, u32 val)
+{
+        volatile unsigned char *cfg_addr;
+
+        if (ppc_md.pci_exclude_device)
+                if (ppc_md.pci_exclude_device(bus->number, devfunc))
+                        return PCIBIOS_DEVICE_NOT_FOUND;
+
+        cfg_addr = (unsigned char *)(tsi_mk_config_addr(bus->number,
+                                                        devfunc, offset) |
+                                                        (offset & 0x03));
+
+#ifdef DEBUG
+        printk("PCI CFG write : ");
+        printk("%d:0x%x:0x%x ", bus->number, devfunc, offset);
+        printk("%d ADDR=0x%08x ", len, (uint) cfg_addr);
+        printk("data = 0x%08x\n", val);
+#endif
+
+        switch (len) {
+        case 1:
+                out_8((u8 *) cfg_addr, val);
+                break;
+        case 2:
+                out_le16((u16 *) cfg_addr, val);
+                break;
+        default:
+                out_le32((u32 *) cfg_addr, val);
+                break;
+        }
+
+        return PCIBIOS_SUCCESSFUL;
+}
+
+void tsi108_clear_pci_error(u32 pci_cfg_base)
+{
+        u32 err_stat, err_addr, pci_stat;
+
+        /*
+         * Quietly clear PB and PCI error flags set as result
+         * of PCI/X configuration read requests.
+         */
+
+        /* Read PB Error Log Registers */
+
+        err_stat = tsi108_read_reg(TSI108_PB_OFFSET + TSI108_PB_ERRCS);
+        err_addr = tsi108_read_reg(TSI108_PB_OFFSET + TSI108_PB_AERR);
+
+        if (err_stat & TSI108_PB_ERRCS_ES) {
+                /* Clear error flag */
+                tsi108_write_reg(TSI108_PB_OFFSET + TSI108_PB_ERRCS,
+                                 TSI108_PB_ERRCS_ES);
+
+                /* Clear read error reported in PB_ISR */
+                tsi108_write_reg(TSI108_PB_OFFSET + TSI108_PB_ISR,
+                                 TSI108_PB_ISR_PBS_RD_ERR);
+
+                /* Clear PCI/X bus cfg errors if applicable */
+                if ((err_addr & 0xFF000000) == pci_cfg_base) {
+                        pci_stat =
+                            tsi108_read_reg(TSI108_PCI_OFFSET + TSI108_PCI_CSR);
+                        tsi108_write_reg(TSI108_PCI_OFFSET + TSI108_PCI_CSR,
+                                         pci_stat);
+                }
+        }
+
+        return;
+}
+
+#define __tsi108_read_pci_config(x, addr, op)           \
+        __asm__ __volatile__(                           \
+                "       "op" %0,0,%1\n"         \
+                "1:     eieio\n"                        \
+                "2:\n"                                  \
+                ".section .fixup,\"ax\"\n"              \
+                "3:     li %0,-1\n"                     \
+                "       b 2b\n"                         \
+                ".section __ex_table,\"a\"\n"           \
+                "       .align 2\n"                     \
+                "       .long 1b,3b\n"                  \
+                ".text"                                 \
+                : "=r"(x) : "r"(addr))
+
+int
+tsi108_direct_read_config(struct pci_bus *bus, unsigned int devfn, int offset,
+                          int len, u32 * val)
+{
+        volatile unsigned char *cfg_addr;
+        u32 temp;
+
+        if (ppc_md.pci_exclude_device)
+                if (ppc_md.pci_exclude_device(bus->number, devfn))
+                        return PCIBIOS_DEVICE_NOT_FOUND;
+
+        cfg_addr = (unsigned char *)(tsi_mk_config_addr(bus->number,
+                                                        devfn,
+                                                        offset) | (offset &
+                                                                   0x03));
+
+        switch (len) {
+        case 1:
+                __tsi108_read_pci_config(temp, cfg_addr, "lbzx");
+                break;
+        case 2:
+                __tsi108_read_pci_config(temp, cfg_addr, "lhbrx");
+                break;
+        default:
+                __tsi108_read_pci_config(temp, cfg_addr, "lwbrx");
+                break;
+        }
+
+        *val = temp;
+
+#ifdef DEBUG
+        if ((0xFFFFFFFF != temp) && (0xFFFF != temp) && (0xFF != temp)) {
+                printk("PCI CFG read : ");
+                printk("%d:0x%x:0x%x ", bus->number, devfn, offset);
+                printk("%d ADDR=0x%08x ", len, (uint) cfg_addr);
+                printk("data = 0x%x\n", *val);
+        }
+#endif
+        return PCIBIOS_SUCCESSFUL;
+}
+
+void tsi108_clear_pci_cfg_error(void)
+{
+        tsi108_clear_pci_error(TSI108_PCI_CFG_BASE_PHYS);
+}
+
+static struct pci_ops tsi108_direct_pci_ops = {
+        tsi108_direct_read_config,
+        tsi108_direct_write_config
+};
+
+int __init tsi108_setup_pci(struct device_node *dev)
+{
+        int len;
+        struct pci_controller *hose;
+        struct resource rsrc;
+        int *bus_range;
+        int primary = 0, has_address = 0;
+
+        /* PCI Config mapping */
+        tsi108_pci_cfg_base = (u32)ioremap(TSI108_PCI_CFG_BASE_PHYS,
+                        TSI108_PCI_CFG_SIZE);
+        DBG("TSI_PCI: %s tsi108_pci_cfg_base=0x%x\n", __FUNCTION__,
+            tsi108_pci_cfg_base);
+
+        /* Fetch host bridge registers address */
+        has_address = (of_address_to_resource(dev, 0, &rsrc) == 0);
+
+        /* Get bus range if any */
+        bus_range = (int *)get_property(dev, "bus-range", &len);
+        if (bus_range == NULL || len < 2 * sizeof(int)) {
+                printk(KERN_WARNING "Can't get bus-range for %s, assume"
+                       " bus 0\n", dev->full_name);
+        }
+
+        hose = pcibios_alloc_controller();
+
+        if (!hose) {
+                printk("PCI Host bridge init failed\n");
+                return -ENOMEM;
+        }
+        hose->arch_data = dev;
+        hose->set_cfg_type = 1;
+
+        hose->first_busno = bus_range ? bus_range[0] : 0;
+        hose->last_busno = bus_range ? bus_range[1] : 0xff;
+
+        (hose)->ops = &tsi108_direct_pci_ops;
+
+        printk(KERN_INFO "Found tsi108 PCI host bridge at 0x%08lx. "
+               "Firmware bus number: %d->%d\n",
+               rsrc.start, hose->first_busno, hose->last_busno);
+
+        /* Interpret the "ranges" property */
+        /* This also maps the I/O region and sets isa_io/mem_base */
+        pci_process_bridge_OF_ranges(hose, dev, primary);
+        return 0;
+}
+
+/*
+ * Low level utility functions
+ */
+
+static void tsi108_pci_int_mask(u_int irq)
+{
+        u_int irp_cfg;
+        int int_line = (irq - IRQ_PCI_INTAD_BASE);
+
+        irp_cfg = tsi108_read_reg(TSI108_PCI_OFFSET + TSI108_PCI_IRP_CFG_CTL);
+        mb();
+        irp_cfg |= (1 << int_line);     /* INTx_DIR = output */
+        irp_cfg &= ~(3 << (8 + (int_line * 2)));        /* INTx_TYPE = unused */
+        tsi108_write_reg(TSI108_PCI_OFFSET + TSI108_PCI_IRP_CFG_CTL, irp_cfg);
+        mb();
+        irp_cfg = tsi108_read_reg(TSI108_PCI_OFFSET + TSI108_PCI_IRP_CFG_CTL);
+}
+
+static void tsi108_pci_int_unmask(u_int irq)
+{
+        u_int irp_cfg;
+        int int_line = (irq - IRQ_PCI_INTAD_BASE);
+
+        irp_cfg = tsi108_read_reg(TSI108_PCI_OFFSET + TSI108_PCI_IRP_CFG_CTL);
+        mb();
+        irp_cfg &= ~(1 << int_line);
+        irp_cfg |= (3 << (8 + (int_line * 2)));
+        tsi108_write_reg(TSI108_PCI_OFFSET + TSI108_PCI_IRP_CFG_CTL, irp_cfg);
+        mb();
+}
+
+static void init_pci_source(void)
+{
+        tsi108_write_reg(TSI108_PCI_OFFSET + TSI108_PCI_IRP_CFG_CTL,
+                        0x0000ff00);
+        tsi108_write_reg(TSI108_PCI_OFFSET + TSI108_PCI_IRP_ENABLE,
+                        TSI108_PCI_IRP_ENABLE_P_INT);
+        mb();
+}
+
+static inline int get_pci_source(void)
+{
+        u_int temp = 0;
+        int irq = -1;
+        int i;
+        u_int pci_irp_stat;
+        static int mask = 0;
+
+        /* Read PCI/X block interrupt status register */
+        pci_irp_stat = tsi108_read_reg(TSI108_PCI_OFFSET + TSI108_PCI_IRP_STAT);
+        mb();
+
+        if (pci_irp_stat & TSI108_PCI_IRP_STAT_P_INT) {
+                /* Process Interrupt from PCI bus INTA# - INTD# lines */
+                temp =
+                    tsi108_read_reg(TSI108_PCI_OFFSET +
+                                    TSI108_PCI_IRP_INTAD) & 0xf;
+                mb();
+                for (i = 0; i < 4; i++, mask++) {
+                        if (temp & (1 << mask % 4)) {
+                                irq = IRQ_PCI_INTA + mask % 4;
+                                mask++;
+                                break;
+                        }
+                }
+
+                /* Disable interrupts from PCI block */
+                temp = tsi108_read_reg(TSI108_PCI_OFFSET + TSI108_PCI_IRP_ENABLE);
+                tsi108_write_reg(TSI108_PCI_OFFSET + TSI108_PCI_IRP_ENABLE,
+                                temp & ~TSI108_PCI_IRP_ENABLE_P_INT);
+                mb();
+                (void)tsi108_read_reg(TSI108_PCI_OFFSET + TSI108_PCI_IRP_ENABLE);
+                mb();
+        }
+#ifdef DEBUG
+        else {
+                printk("TSI108_PIC: error in TSI108_PCI_IRP_STAT\n");
+                pci_irp_stat =
+                    tsi108_read_reg(TSI108_PCI_OFFSET + TSI108_PCI_IRP_STAT);
+                temp =
+                    tsi108_read_reg(TSI108_PCI_OFFSET + TSI108_PCI_IRP_INTAD);
+                mb();
+                printk(">> stat=0x%08x intad=0x%08x ", pci_irp_stat, temp);
+                temp =
+                    tsi108_read_reg(TSI108_PCI_OFFSET + TSI108_PCI_IRP_CFG_CTL);
+                mb();
+                printk("cfg_ctl=0x%08x ", temp);
+                temp =
+                    tsi108_read_reg(TSI108_PCI_OFFSET + TSI108_PCI_IRP_ENABLE);
+                mb();
+                printk("irp_enable=0x%08x\n", temp);
+        }
+#endif  /* end of DEBUG */
+
+        return irq;
+}
+
+
+/*
+ * Linux descriptor level callbacks
+ */
+
+static void tsi108_pci_irq_enable(u_int irq)
+{
+        tsi108_pci_int_unmask(irq);
+}
+
+static void tsi108_pci_irq_disable(u_int irq)
+{
+        tsi108_pci_int_mask(irq);
+}
+
+static void tsi108_pci_irq_ack(u_int irq)
+{
+        tsi108_pci_int_mask(irq);
+}
+
+static void tsi108_pci_irq_end(u_int irq)
+{
+        tsi108_pci_int_unmask(irq);
+
+        /* Enable interrupts from PCI block */
+        tsi108_write_reg(TSI108_PCI_OFFSET + TSI108_PCI_IRP_ENABLE,
+                         tsi108_read_reg(TSI108_PCI_OFFSET +
+                                         TSI108_PCI_IRP_ENABLE) |
+                         TSI108_PCI_IRP_ENABLE_P_INT);
+        mb();
+}
+
+/*
+ * Interrupt controller descriptor for cascaded PCI interrupt controller.
+ */
+
+struct hw_interrupt_type tsi108_pci_irq = {
+        .typename = "tsi108_PCI_int",
+        .enable = tsi108_pci_irq_enable,
+        .disable = tsi108_pci_irq_disable,
+        .ack = tsi108_pci_irq_ack,
+        .end = tsi108_pci_irq_end,
+};
+
+/*
+ * Exported functions
+ */
+
+/*
+ * The Tsi108 PCI interrupts initialization routine.
+ *
+ * The INTA# - INTD# interrupts on the PCI bus are reported by the PCI block
+ * to the MPIC using single interrupt source (IRQ_TSI108_PCI). Therefore the
+ * PCI block has to be treated as a cascaded interrupt controller connected
+ * to the MPIC.
+ */
+
+void __init tsi108_pci_int_init(void)
+{
+        u_int i;
+
+        DBG("Tsi108_pci_int_init: initializing PCI interrupts\n");
+
+        for (i = 0; i < NUM_PCI_IRQS; i++) {
+                irq_desc[i + IRQ_PCI_INTAD_BASE].handler = &tsi108_pci_irq;
+                irq_desc[i + IRQ_PCI_INTAD_BASE].status |= IRQ_LEVEL;
+        }
+
+        init_pci_source();
+}
+
+int tsi108_irq_cascade(struct pt_regs *regs, void *unused)
+{
+        return get_pci_source();
+}