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Diffstat (limited to 'arch/ppc/platforms/prpmc750.c')
-rw-r--r--arch/ppc/platforms/prpmc750.c360
1 files changed, 0 insertions, 360 deletions
diff --git a/arch/ppc/platforms/prpmc750.c b/arch/ppc/platforms/prpmc750.c
deleted file mode 100644
index 93bd593cf95..00000000000
--- a/arch/ppc/platforms/prpmc750.c
+++ /dev/null
@@ -1,360 +0,0 @@
-/*
- * Board setup routines for Motorola PrPMC750
- *
- * Author: Matt Porter <mporter@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/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/types.h>
-#include <linux/major.h>
-#include <linux/initrd.h>
-#include <linux/console.h>
-#include <linux/delay.h>
-#include <linux/seq_file.h>
-#include <linux/root_dev.h>
-#include <linux/slab.h>
-#include <linux/serial_reg.h>
-
-#include <asm/byteorder.h>
-#include <asm/system.h>
-#include <asm/pgtable.h>
-#include <asm/page.h>
-#include <asm/dma.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/machdep.h>
-#include <asm/pci-bridge.h>
-#include <asm/uaccess.h>
-#include <asm/time.h>
-#include <asm/open_pic.h>
-#include <asm/bootinfo.h>
-#include <asm/hawk.h>
-
-#include "prpmc750.h"
-
-extern unsigned long loops_per_jiffy;
-
-extern void gen550_progress(char *, unsigned short);
-
-static u_char prpmc750_openpic_initsenses[] __initdata =
-{
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* PRPMC750_INT_HOSTINT0 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* PRPMC750_INT_UART */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* PRPMC750_INT_DEBUGINT */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* PRPMC750_INT_HAWK_WDT */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* PRPMC750_INT_UNUSED */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* PRPMC750_INT_ABORT */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* PRPMC750_INT_HOSTINT1 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* PRPMC750_INT_HOSTINT2 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* PRPMC750_INT_HOSTINT3 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* PRPMC750_INT_PMC_INTA */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* PRPMC750_INT_PMC_INTB */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* PRPMC750_INT_PMC_INTC */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* PRPMC750_INT_PMC_INTD */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* PRPMC750_INT_UNUSED */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* PRPMC750_INT_UNUSED */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* PRPMC750_INT_UNUSED */
-};
-
-/*
- * Motorola PrPMC750/PrPMC800 in PrPMCBASE or PrPMC-Carrier
- * Combined irq tables. Only Base has IDSEL 14, only Carrier has 21 and 22.
- */
-static inline int
-prpmc_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
- */
- {
- {12, 0, 0, 0}, /* IDSEL 14 - Ethernet, base */
- {0, 0, 0, 0}, /* IDSEL 15 - unused */
- {10, 11, 12, 9}, /* IDSEL 16 - PMC A1, PMC1 */
- {10, 11, 12, 9}, /* IDSEL 17 - PrPMC-A-B, PMC2-B */
- {11, 12, 9, 10}, /* IDSEL 18 - PMC A1-B, PMC1-B */
- {0, 0, 0, 0}, /* IDSEL 19 - unused */
- {9, 10, 11, 12}, /* IDSEL 20 - P2P Bridge */
- {11, 12, 9, 10}, /* IDSEL 21 - PMC A2, carrier */
- {12, 9, 10, 11}, /* IDSEL 22 - PMC A2-B, carrier */
- };
- const long min_idsel = 14, max_idsel = 22, irqs_per_slot = 4;
- return PCI_IRQ_TABLE_LOOKUP;
-};
-
-static void __init prpmc750_pcibios_fixup(void)
-{
- struct pci_dev *dev;
- unsigned short wtmp;
-
- /*
- * Kludge to clean up after PPC6BUG which doesn't
- * configure the CL5446 VGA card. Also the
- * resource subsystem doesn't fixup the
- * PCI mem resources on the CL5446.
- */
- if ((dev = pci_get_device(PCI_VENDOR_ID_CIRRUS,
- PCI_DEVICE_ID_CIRRUS_5446, 0))) {
- dev->resource[0].start += PRPMC750_PCI_PHY_MEM_OFFSET;
- dev->resource[0].end += PRPMC750_PCI_PHY_MEM_OFFSET;
- pci_read_config_word(dev, PCI_COMMAND, &wtmp);
- pci_write_config_word(dev, PCI_COMMAND, wtmp | 3);
- /* Enable Color mode in MISC reg */
- outb(0x03, 0x3c2);
- /* Select DRAM config reg */
- outb(0x0f, 0x3c4);
- /* Set proper DRAM config */
- outb(0xdf, 0x3c5);
- pci_dev_put(dev);
- }
-}
-
-void __init prpmc750_find_bridges(void)
-{
- struct pci_controller *hose;
-
- hose = pcibios_alloc_controller();
- if (!hose)
- return;
-
- hose->first_busno = 0;
- hose->last_busno = 0xff;
- hose->io_base_virt = (void *)PRPMC750_ISA_IO_BASE;
- hose->pci_mem_offset = PRPMC750_PCI_PHY_MEM_OFFSET;
-
- pci_init_resource(&hose->io_resource,
- PRPMC750_PCI_IO_START,
- PRPMC750_PCI_IO_END,
- IORESOURCE_IO, "PCI host bridge");
-
- pci_init_resource(&hose->mem_resources[0],
- PRPMC750_PROC_PCI_MEM_START,
- PRPMC750_PROC_PCI_MEM_END,
- IORESOURCE_MEM, "PCI host bridge");
-
- hose->io_space.start = PRPMC750_PCI_IO_START;
- hose->io_space.end = PRPMC750_PCI_IO_END;
- hose->mem_space.start = PRPMC750_PCI_MEM_START;
- hose->mem_space.end = PRPMC750_PCI_MEM_END - HAWK_MPIC_SIZE;
-
- if (hawk_init(hose, PRPMC750_HAWK_PPC_REG_BASE,
- PRPMC750_PROC_PCI_MEM_START,
- PRPMC750_PROC_PCI_MEM_END - HAWK_MPIC_SIZE,
- PRPMC750_PROC_PCI_IO_START, PRPMC750_PROC_PCI_IO_END,
- PRPMC750_PROC_PCI_MEM_END - HAWK_MPIC_SIZE + 1)
- != 0) {
- printk(KERN_CRIT "Could not initialize host bridge\n");
- }
-
- hose->last_busno = pciauto_bus_scan(hose, hose->first_busno);
-
- ppc_md.pcibios_fixup = prpmc750_pcibios_fixup;
- ppc_md.pci_swizzle = common_swizzle;
- ppc_md.pci_map_irq = prpmc_map_irq;
-}
-static int prpmc750_show_cpuinfo(struct seq_file *m)
-{
- seq_printf(m, "machine\t\t: PrPMC750\n");
-
- return 0;
-}
-
-static void __init prpmc750_setup_arch(void)
-{
- /* init to some ~sane value until calibrate_delay() runs */
- loops_per_jiffy = 50000000 / HZ;
-
- /* Lookup PCI host bridges */
- prpmc750_find_bridges();
-
-#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
-
- OpenPIC_InitSenses = prpmc750_openpic_initsenses;
- OpenPIC_NumInitSenses = sizeof(prpmc750_openpic_initsenses);
-
- printk(KERN_INFO "Port by MontaVista Software, Inc. "
- "(source@mvista.com)\n");
-}
-
-/*
- * Compute the PrPMC750's bus speed using the baud clock as a
- * reference.
- */
-static unsigned long __init prpmc750_get_bus_speed(void)
-{
- unsigned long tbl_start, tbl_end;
- unsigned long current_state, old_state, bus_speed;
- unsigned char lcr, dll, dlm;
- int baud_divisor, count;
-
- /* Read the UART's baud clock divisor */
- lcr = readb(PRPMC750_SERIAL_0_LCR);
- writeb(lcr | UART_LCR_DLAB, PRPMC750_SERIAL_0_LCR);
- dll = readb(PRPMC750_SERIAL_0_DLL);
- dlm = readb(PRPMC750_SERIAL_0_DLM);
- writeb(lcr & ~UART_LCR_DLAB, PRPMC750_SERIAL_0_LCR);
- baud_divisor = (dlm << 8) | dll;
-
- /*
- * Use the baud clock divisor and base baud clock
- * to determine the baud rate and use that as
- * the number of baud clock edges we use for
- * the time base sample. Make it half the baud
- * rate.
- */
- count = PRPMC750_BASE_BAUD / (baud_divisor * 16);
-
- /* Find the first edge of the baud clock */
- old_state = readb(PRPMC750_STATUS_REG) & PRPMC750_BAUDOUT_MASK;
- do {
- current_state = readb(PRPMC750_STATUS_REG) &
- PRPMC750_BAUDOUT_MASK;
- } while (old_state == current_state);
-
- old_state = current_state;
-
- /* Get the starting time base value */
- tbl_start = get_tbl();
-
- /*
- * Loop until we have found a number of edges equal
- * to half the count (half the baud rate)
- */
- do {
- do {
- current_state = readb(PRPMC750_STATUS_REG) &
- PRPMC750_BAUDOUT_MASK;
- } while (old_state == current_state);
- old_state = current_state;
- } while (--count);
-
- /* Get the ending time base value */
- tbl_end = get_tbl();
-
- /* Compute bus speed */
- bus_speed = (tbl_end - tbl_start) * 128;
-
- return bus_speed;
-}
-
-static void __init prpmc750_calibrate_decr(void)
-{
- unsigned long freq;
- int divisor = 4;
-
- freq = prpmc750_get_bus_speed();
-
- tb_ticks_per_jiffy = freq / (HZ * divisor);
- tb_to_us = mulhwu_scale_factor(freq / divisor, 1000000);
-}
-
-static void prpmc750_restart(char *cmd)
-{
- local_irq_disable();
- writeb(PRPMC750_MODRST_MASK, PRPMC750_MODRST_REG);
- while (1) ;
-}
-
-static void prpmc750_halt(void)
-{
- local_irq_disable();
- while (1) ;
-}
-
-static void prpmc750_power_off(void)
-{
- prpmc750_halt();
-}
-
-static void __init prpmc750_init_IRQ(void)
-{
- openpic_init(0);
-}
-
-/*
- * Set BAT 3 to map 0xf0000000 to end of physical memory space.
- */
-static __inline__ void prpmc750_set_bat(void)
-{
- mb();
- mtspr(SPRN_DBAT1U, 0xf0001ffe);
- mtspr(SPRN_DBAT1L, 0xf000002a);
- mb();
-}
-
-/*
- * We need to read the Falcon/Hawk memory controller
- * to properly determine this value
- */
-static unsigned long __init prpmc750_find_end_of_memory(void)
-{
- /* Read the memory size from the Hawk SMC */
- return hawk_get_mem_size(PRPMC750_HAWK_SMC_BASE);
-}
-
-static void __init prpmc750_map_io(void)
-{
- io_block_mapping(PRPMC750_ISA_IO_BASE, PRPMC750_ISA_IO_BASE,
- 0x10000000, _PAGE_IO);
-#if 0
- io_block_mapping(0xf0000000, 0xc0000000, 0x08000000, _PAGE_IO);
-#endif
- io_block_mapping(0xf8000000, 0xf8000000, 0x08000000, _PAGE_IO);
-}
-
-void __init
-platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
- unsigned long r6, unsigned long r7)
-{
- parse_bootinfo(find_bootinfo());
-
- /* Cover the Hawk registers with a BAT */
- prpmc750_set_bat();
-
- isa_io_base = PRPMC750_ISA_IO_BASE;
- isa_mem_base = PRPMC750_ISA_MEM_BASE;
- pci_dram_offset = PRPMC750_PCI_DRAM_OFFSET;
-
- ppc_md.setup_arch = prpmc750_setup_arch;
- ppc_md.show_cpuinfo = prpmc750_show_cpuinfo;
- ppc_md.init_IRQ = prpmc750_init_IRQ;
- ppc_md.get_irq = openpic_get_irq;
-
- ppc_md.find_end_of_memory = prpmc750_find_end_of_memory;
- ppc_md.setup_io_mappings = prpmc750_map_io;
-
- ppc_md.restart = prpmc750_restart;
- ppc_md.power_off = prpmc750_power_off;
- ppc_md.halt = prpmc750_halt;
-
- /* PrPMC750 has no timekeeper part */
- ppc_md.time_init = NULL;
- ppc_md.get_rtc_time = NULL;
- ppc_md.set_rtc_time = NULL;
- ppc_md.calibrate_decr = prpmc750_calibrate_decr;
-
-#ifdef CONFIG_SERIAL_TEXT_DEBUG
- ppc_md.progress = gen550_progress;
-#endif /* CONFIG_SERIAL_TEXT_DEBUG */
-}