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-rw-r--r--arch/ppc/platforms/mcpn765.c527
1 files changed, 0 insertions, 527 deletions
diff --git a/arch/ppc/platforms/mcpn765.c b/arch/ppc/platforms/mcpn765.c
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index e88d294ea593..000000000000
--- a/arch/ppc/platforms/mcpn765.c
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@@ -1,527 +0,0 @@
-/*
- * arch/ppc/platforms/mcpn765.c
- *
- * Board setup routines for the Motorola MCG MCPN765 cPCI Board.
- *
- * Author: Mark A. Greer
- * mgreer@mvista.com
- *
- * Modified by Randy Vinson (rvinson@mvista.com)
- *
- * 2001-2002 (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.
- */
-
-/*
- * This file adds support for the Motorola MCG MCPN765.
- */
-#include <linux/config.h>
-#include <linux/stddef.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/errno.h>
-#include <linux/reboot.h>
-#include <linux/pci.h>
-#include <linux/kdev_t.h>
-#include <linux/major.h>
-#include <linux/initrd.h>
-#include <linux/console.h>
-#include <linux/delay.h>
-#include <linux/irq.h>
-#include <linux/seq_file.h>
-#include <linux/root_dev.h>
-#include <linux/serial.h>
-#include <linux/tty.h> /* for linux/serial_core.h */
-#include <linux/serial_core.h>
-#include <linux/slab.h>
-
-#include <asm/system.h>
-#include <asm/pgtable.h>
-#include <asm/page.h>
-#include <asm/time.h>
-#include <asm/dma.h>
-#include <asm/byteorder.h>
-#include <asm/io.h>
-#include <asm/machdep.h>
-#include <asm/prom.h>
-#include <asm/smp.h>
-#include <asm/open_pic.h>
-#include <asm/i8259.h>
-#include <asm/todc.h>
-#include <asm/pci-bridge.h>
-#include <asm/irq.h>
-#include <asm/uaccess.h>
-#include <asm/bootinfo.h>
-#include <asm/hawk.h>
-#include <asm/kgdb.h>
-
-#include "mcpn765.h"
-
-static u_char mcpn765_openpic_initsenses[] __initdata = {
- (IRQ_SENSE_EDGE | IRQ_POLARITY_POSITIVE),/* 16: i8259 cascade */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),/* 17: COM1,2,3,4 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),/* 18: Enet 1 (front) */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),/* 19: HAWK WDT XXXX */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),/* 20: 21554 bridge */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),/* 21: cPCI INTA# */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),/* 22: cPCI INTB# */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),/* 23: cPCI INTC# */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),/* 24: cPCI INTD# */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),/* 25: PMC1 INTA#,PMC2 INTB#*/
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),/* 26: PMC1 INTB#,PMC2 INTC#*/
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),/* 27: PMC1 INTC#,PMC2 INTD#*/
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),/* 28: PMC1 INTD#,PMC2 INTA#*/
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),/* 29: Enet 2 (J3) */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),/* 30: Abort Switch */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),/* 31: RTC Alarm */
-};
-
-extern void mcpn765_set_VIA_IDE_native(void);
-
-extern u_int openpic_irq(void);
-extern char cmd_line[];
-
-extern void gen550_progress(char *, unsigned short);
-extern void gen550_init(int, struct uart_port *);
-
-int use_of_interrupt_tree = 0;
-
-static void mcpn765_halt(void);
-
-TODC_ALLOC();
-
-/*
- * Motorola MCG MCPN765 interrupt routing.
- */
-static inline int
-mcpn765_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin)
-{
- static char pci_irq_table[][4] =
- /*
- * PCI IDSEL/INTPIN->INTLINE
- * A B C D
- */
- {
- { 14, 0, 0, 0 }, /* IDSEL 11 - have to manually set */
- { 0, 0, 0, 0 }, /* IDSEL 12 - unused */
- { 0, 0, 0, 0 }, /* IDSEL 13 - unused */
- { 18, 0, 0, 0 }, /* IDSEL 14 - Enet 0 */
- { 0, 0, 0, 0 }, /* IDSEL 15 - unused */
- { 25, 26, 27, 28 }, /* IDSEL 16 - PMC Slot 1 */
- { 28, 25, 26, 27 }, /* IDSEL 17 - PMC Slot 2 */
- { 0, 0, 0, 0 }, /* IDSEL 18 - PMC 2B Connector XXXX */
- { 29, 0, 0, 0 }, /* IDSEL 19 - Enet 1 */
- { 20, 0, 0, 0 }, /* IDSEL 20 - 21554 cPCI bridge */
- };
-
- const long min_idsel = 11, max_idsel = 20, irqs_per_slot = 4;
- return PCI_IRQ_TABLE_LOOKUP;
-}
-
-void __init
-mcpn765_set_VIA_IDE_legacy(void)
-{
- unsigned short vend, dev;
-
- early_read_config_word(0, 0, PCI_DEVFN(0xb, 1), PCI_VENDOR_ID, &vend);
- early_read_config_word(0, 0, PCI_DEVFN(0xb, 1), PCI_DEVICE_ID, &dev);
-
- if ((vend == PCI_VENDOR_ID_VIA) &&
- (dev == PCI_DEVICE_ID_VIA_82C586_1)) {
-
- unsigned char temp;
-
- /* put back original "standard" port base addresses */
- early_write_config_dword(0, 0, PCI_DEVFN(0xb, 1),
- PCI_BASE_ADDRESS_0, 0x1f1);
- early_write_config_dword(0, 0, PCI_DEVFN(0xb, 1),
- PCI_BASE_ADDRESS_1, 0x3f5);
- early_write_config_dword(0, 0, PCI_DEVFN(0xb, 1),
- PCI_BASE_ADDRESS_2, 0x171);
- early_write_config_dword(0, 0, PCI_DEVFN(0xb, 1),
- PCI_BASE_ADDRESS_3, 0x375);
- early_write_config_dword(0, 0, PCI_DEVFN(0xb, 1),
- PCI_BASE_ADDRESS_4, 0xcc01);
-
- /* put into legacy mode */
- early_read_config_byte(0, 0, PCI_DEVFN(0xb, 1), PCI_CLASS_PROG,
- &temp);
- temp &= ~0x05;
- early_write_config_byte(0, 0, PCI_DEVFN(0xb, 1), PCI_CLASS_PROG,
- temp);
- }
-}
-
-void
-mcpn765_set_VIA_IDE_native(void)
-{
- unsigned short vend, dev;
-
- early_read_config_word(0, 0, PCI_DEVFN(0xb, 1), PCI_VENDOR_ID, &vend);
- early_read_config_word(0, 0, PCI_DEVFN(0xb, 1), PCI_DEVICE_ID, &dev);
-
- if ((vend == PCI_VENDOR_ID_VIA) &&
- (dev == PCI_DEVICE_ID_VIA_82C586_1)) {
-
- unsigned char temp;
-
- /* put into native mode */
- early_read_config_byte(0, 0, PCI_DEVFN(0xb, 1), PCI_CLASS_PROG,
- &temp);
- temp |= 0x05;
- early_write_config_byte(0, 0, PCI_DEVFN(0xb, 1), PCI_CLASS_PROG,
- temp);
- }
-}
-
-/*
- * Initialize the VIA 82c586b.
- */
-static void __init
-mcpn765_setup_via_82c586b(void)
-{
- struct pci_dev *dev;
- u_char c;
-
- if ((dev = pci_get_device(PCI_VENDOR_ID_VIA,
- PCI_DEVICE_ID_VIA_82C586_0,
- NULL)) == NULL) {
- printk("No VIA ISA bridge found\n");
- mcpn765_halt();
- /* NOTREACHED */
- }
-
- /*
- * If the firmware left the EISA 4d0/4d1 ports enabled, make sure
- * IRQ 14 is set for edge.
- */
- pci_read_config_byte(dev, 0x47, &c);
-
- if (c & (1<<5)) {
- c = inb(0x4d1);
- c &= ~(1<<6);
- outb(c, 0x4d1);
- }
-
- /* Disable PNP IRQ routing since we use the Hawk's MPIC */
- pci_write_config_dword(dev, 0x54, 0);
- pci_write_config_byte(dev, 0x58, 0);
-
- pci_dev_put(dev);
- if ((dev = pci_get_device(PCI_VENDOR_ID_VIA,
- PCI_DEVICE_ID_VIA_82C586_1,
- NULL)) == NULL) {
- printk("No VIA ISA bridge found\n");
- mcpn765_halt();
- /* NOTREACHED */
- }
-
- /*
- * PPCBug doesn't set the enable bits for the IDE device.
- * Turn them on now.
- */
- pci_read_config_byte(dev, 0x40, &c);
- c |= 0x03;
- pci_write_config_byte(dev, 0x40, c);
- pci_dev_put(dev);
-
- return;
-}
-
-void __init
-mcpn765_pcibios_fixup(void)
-{
- /* Do MCPN765 board specific initialization. */
- mcpn765_setup_via_82c586b();
-}
-
-void __init
-mcpn765_find_bridges(void)
-{
- struct pci_controller *hose;
-
- hose = pcibios_alloc_controller();
-
- if (!hose)
- return;
-
- hose->first_busno = 0;
- hose->last_busno = 0xff;
- hose->pci_mem_offset = MCPN765_PCI_PHY_MEM_OFFSET;
-
- pci_init_resource(&hose->io_resource,
- MCPN765_PCI_IO_START,
- MCPN765_PCI_IO_END,
- IORESOURCE_IO,
- "PCI host bridge");
-
- pci_init_resource(&hose->mem_resources[0],
- MCPN765_PCI_MEM_START,
- MCPN765_PCI_MEM_END,
- IORESOURCE_MEM,
- "PCI host bridge");
-
- hose->io_space.start = MCPN765_PCI_IO_START;
- hose->io_space.end = MCPN765_PCI_IO_END;
- hose->mem_space.start = MCPN765_PCI_MEM_START;
- hose->mem_space.end = MCPN765_PCI_MEM_END - HAWK_MPIC_SIZE;
-
- if (hawk_init(hose,
- MCPN765_HAWK_PPC_REG_BASE,
- MCPN765_PROC_PCI_MEM_START,
- MCPN765_PROC_PCI_MEM_END - HAWK_MPIC_SIZE,
- MCPN765_PROC_PCI_IO_START,
- MCPN765_PROC_PCI_IO_END,
- MCPN765_PCI_MEM_END - HAWK_MPIC_SIZE + 1) != 0) {
- printk("Could not initialize HAWK bridge\n");
- }
-
- /* VIA IDE BAR decoders are only 16-bits wide. PCI Auto Config
- * will reassign the bars outside of 16-bit I/O space, which will
- * "break" things. To prevent this, we'll set the IDE chip into
- * legacy mode and seed the bars with their legacy addresses (in 16-bit
- * I/O space). The Auto Config code will skip the IDE contoller in
- * legacy mode, so our bar values will stick.
- */
- mcpn765_set_VIA_IDE_legacy();
-
- hose->last_busno = pciauto_bus_scan(hose, hose->first_busno);
-
- /* Now that we've got 16-bit addresses in the bars, we can switch the
- * IDE controller back into native mode so we can do "modern" resource
- * and interrupt management.
- */
- mcpn765_set_VIA_IDE_native();
-
- ppc_md.pcibios_fixup = mcpn765_pcibios_fixup;
- ppc_md.pcibios_fixup_bus = NULL;
- ppc_md.pci_swizzle = common_swizzle;
- ppc_md.pci_map_irq = mcpn765_map_irq;
-
- return;
-}
-static void __init
-mcpn765_setup_arch(void)
-{
- struct pci_controller *hose;
-
- if ( ppc_md.progress )
- ppc_md.progress("mcpn765_setup_arch: enter", 0);
-
- loops_per_jiffy = 50000000 / HZ;
-
-#ifdef CONFIG_BLK_DEV_INITRD
- if (initrd_start)
- ROOT_DEV = Root_RAM0;
- else
-#endif
-#ifdef CONFIG_ROOT_NFS
- ROOT_DEV = Root_NFS;
-#else
- ROOT_DEV = Root_SDA2;
-#endif
-
- if ( ppc_md.progress )
- ppc_md.progress("mcpn765_setup_arch: find_bridges", 0);
-
- /* Lookup PCI host bridges */
- mcpn765_find_bridges();
-
- hose = pci_bus_to_hose(0);
- isa_io_base = (ulong)hose->io_base_virt;
-
- TODC_INIT(TODC_TYPE_MK48T37,
- (MCPN765_PHYS_NVRAM_AS0 - isa_io_base),
- (MCPN765_PHYS_NVRAM_AS1 - isa_io_base),
- (MCPN765_PHYS_NVRAM_DATA - isa_io_base),
- 8);
-
- OpenPIC_InitSenses = mcpn765_openpic_initsenses;
- OpenPIC_NumInitSenses = sizeof(mcpn765_openpic_initsenses);
-
- printk("Motorola MCG MCPN765 cPCI Non-System Board\n");
- printk("MCPN765 port (MontaVista Software, Inc. (source@mvista.com))\n");
-
- if ( ppc_md.progress )
- ppc_md.progress("mcpn765_setup_arch: exit", 0);
-
- return;
-}
-
-static void __init
-mcpn765_init2(void)
-{
-
- request_region(0x00,0x20,"dma1");
- request_region(0x20,0x20,"pic1");
- request_region(0x40,0x20,"timer");
- request_region(0x80,0x10,"dma page reg");
- request_region(0xa0,0x20,"pic2");
- request_region(0xc0,0x20,"dma2");
-
- return;
-}
-
-/*
- * Interrupt setup and service.
- * Have MPIC on HAWK and cascaded 8259s on VIA 82586 cascaded to MPIC.
- */
-static void __init
-mcpn765_init_IRQ(void)
-{
- int i;
-
- if ( ppc_md.progress )
- ppc_md.progress("init_irq: enter", 0);
-
- openpic_init(NUM_8259_INTERRUPTS);
- openpic_hookup_cascade(NUM_8259_INTERRUPTS, "82c59 cascade",
- i8259_irq);
-
- for(i=0; i < NUM_8259_INTERRUPTS; i++)
- irq_desc[i].handler = &i8259_pic;
-
- i8259_init(0);
-
- if ( ppc_md.progress )
- ppc_md.progress("init_irq: exit", 0);
-
- return;
-}
-
-static u32
-mcpn765_irq_canonicalize(u32 irq)
-{
- if (irq == 2)
- return 9;
- else
- return irq;
-}
-
-static unsigned long __init
-mcpn765_find_end_of_memory(void)
-{
- return hawk_get_mem_size(MCPN765_HAWK_SMC_BASE);
-}
-
-static void __init
-mcpn765_map_io(void)
-{
- io_block_mapping(0xfe800000, 0xfe800000, 0x00800000, _PAGE_IO);
-}
-
-static void
-mcpn765_reset_board(void)
-{
- local_irq_disable();
-
- /* set VIA IDE controller into native mode */
- mcpn765_set_VIA_IDE_native();
-
- /* Set exception prefix high - to the firmware */
- _nmask_and_or_msr(0, MSR_IP);
-
- out_8((u_char *)MCPN765_BOARD_MODRST_REG, 0x01);
-
- return;
-}
-
-static void
-mcpn765_restart(char *cmd)
-{
- volatile ulong i = 10000000;
-
- mcpn765_reset_board();
-
- while (i-- > 0);
- panic("restart failed\n");
-}
-
-static void
-mcpn765_power_off(void)
-{
- mcpn765_halt();
- /* NOTREACHED */
-}
-
-static void
-mcpn765_halt(void)
-{
- local_irq_disable();
- while (1);
- /* NOTREACHED */
-}
-
-static int
-mcpn765_show_cpuinfo(struct seq_file *m)
-{
- seq_printf(m, "vendor\t\t: Motorola MCG\n");
- seq_printf(m, "machine\t\t: MCPN765\n");
-
- return 0;
-}
-
-/*
- * Set BAT 3 to map 0xf0000000 to end of physical memory space.
- */
-static __inline__ void
-mcpn765_set_bat(void)
-{
- mb();
- mtspr(SPRN_DBAT1U, 0xfe8000fe);
- mtspr(SPRN_DBAT1L, 0xfe80002a);
- mb();
-}
-
-void __init
-platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
- unsigned long r6, unsigned long r7)
-{
- parse_bootinfo(find_bootinfo());
-
- /* Map in board regs, etc. */
- mcpn765_set_bat();
-
- isa_mem_base = MCPN765_ISA_MEM_BASE;
- pci_dram_offset = MCPN765_PCI_DRAM_OFFSET;
- ISA_DMA_THRESHOLD = 0x00ffffff;
- DMA_MODE_READ = 0x44;
- DMA_MODE_WRITE = 0x48;
-
- ppc_md.setup_arch = mcpn765_setup_arch;
- ppc_md.show_cpuinfo = mcpn765_show_cpuinfo;
- ppc_md.irq_canonicalize = mcpn765_irq_canonicalize;
- ppc_md.init_IRQ = mcpn765_init_IRQ;
- ppc_md.get_irq = openpic_get_irq;
- ppc_md.init = mcpn765_init2;
-
- ppc_md.restart = mcpn765_restart;
- ppc_md.power_off = mcpn765_power_off;
- ppc_md.halt = mcpn765_halt;
-
- ppc_md.find_end_of_memory = mcpn765_find_end_of_memory;
- ppc_md.setup_io_mappings = mcpn765_map_io;
-
- ppc_md.time_init = todc_time_init;
- ppc_md.set_rtc_time = todc_set_rtc_time;
- ppc_md.get_rtc_time = todc_get_rtc_time;
- ppc_md.calibrate_decr = todc_calibrate_decr;
-
- ppc_md.nvram_read_val = todc_m48txx_read_val;
- ppc_md.nvram_write_val = todc_m48txx_write_val;
-
- ppc_md.heartbeat = NULL;
- ppc_md.heartbeat_reset = 0;
- ppc_md.heartbeat_count = 0;
-
-#ifdef CONFIG_SERIAL_TEXT_DEBUG
- ppc_md.progress = gen550_progress;
-#endif
-#ifdef CONFIG_KGDB
- ppc_md.kgdb_map_scc = gen550_kgdb_map_scc;
-#endif
-
- return;
-}
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