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-rw-r--r--arch/ppc/platforms/prpmc800.c472
1 files changed, 0 insertions, 472 deletions
diff --git a/arch/ppc/platforms/prpmc800.c b/arch/ppc/platforms/prpmc800.c
deleted file mode 100644
index 5bcda7f92cd0..000000000000
--- a/arch/ppc/platforms/prpmc800.c
+++ /dev/null
@@ -1,472 +0,0 @@
-/*
- * Author: Dale Farnsworth <dale.farnsworth@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/harrier_defs.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/time.h>
-#include <asm/pci-bridge.h>
-#include <asm/open_pic.h>
-#include <asm/bootinfo.h>
-#include <asm/harrier.h>
-
-#include "prpmc800.h"
-
-#define HARRIER_REVI_REG (PRPMC800_HARRIER_XCSR_BASE+HARRIER_REVI_OFF)
-#define HARRIER_UCTL_REG (PRPMC800_HARRIER_XCSR_BASE+HARRIER_UCTL_OFF)
-#define HARRIER_MISC_CSR_REG (PRPMC800_HARRIER_XCSR_BASE+HARRIER_MISC_CSR_OFF)
-#define HARRIER_IFEVP_REG (PRPMC800_HARRIER_MPIC_BASE+HARRIER_MPIC_IFEVP_OFF)
-#define HARRIER_IFEDE_REG (PRPMC800_HARRIER_MPIC_BASE+HARRIER_MPIC_IFEDE_OFF)
-#define HARRIER_FEEN_REG (PRPMC800_HARRIER_XCSR_BASE+HARRIER_FEEN_OFF)
-#define HARRIER_FEMA_REG (PRPMC800_HARRIER_XCSR_BASE+HARRIER_FEMA_OFF)
-
-#define HARRIER_VENI_REG (PRPMC800_HARRIER_XCSR_BASE + HARRIER_VENI_OFF)
-#define HARRIER_MISC_CSR (PRPMC800_HARRIER_XCSR_BASE + \
- HARRIER_MISC_CSR_OFF)
-
-#define MONARCH (monarch != 0)
-#define NON_MONARCH (monarch == 0)
-
-extern int mpic_init(void);
-extern unsigned long loops_per_jiffy;
-extern void gen550_progress(char *, unsigned short);
-
-static int monarch = 0;
-static int found_self = 0;
-static int self = 0;
-
-static u_char prpmc800_openpic_initsenses[] __initdata =
-{
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* PRPMC800_INT_HOSTINT0 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* PRPMC800_INT_UNUSED */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* PRPMC800_INT_DEBUGINT */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* PRPMC800_INT_HARRIER_WDT */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* PRPMC800_INT_UNUSED */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* PRPMC800_INT_UNUSED */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* PRPMC800_INT_HOSTINT1 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* PRPMC800_INT_HOSTINT2 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* PRPMC800_INT_HOSTINT3 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* PRPMC800_INT_PMC_INTA */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* PRPMC800_INT_PMC_INTB */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* PRPMC800_INT_PMC_INTC */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* PRPMC800_INT_PMC_INTD */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* PRPMC800_INT_UNUSED */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* PRPMC800_INT_UNUSED */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* PRPMC800_INT_UNUSED */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* PRPMC800_INT_HARRIER_INT (UARTS, ABORT, DMA) */
-};
-
-/*
- * 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 int
-prpmc_read_config_dword(struct pci_controller *hose, u8 bus, u8 devfn,
- int offset, u32 * val)
-{
- /* paranoia */
- if ((hose == NULL) ||
- (hose->cfg_addr == NULL) || (hose->cfg_data == NULL))
- return PCIBIOS_DEVICE_NOT_FOUND;
-
- out_be32(hose->cfg_addr, ((offset & 0xfc) << 24) | (devfn << 16)
- | ((bus - hose->bus_offset) << 8) | 0x80);
- *val = in_le32((u32 *) (hose->cfg_data + (offset & 3)));
-
- return PCIBIOS_SUCCESSFUL;
-}
-
-#define HARRIER_PCI_VEND_DEV_ID (PCI_VENDOR_ID_MOTOROLA | \
- (PCI_DEVICE_ID_MOTOROLA_HARRIER << 16))
-static int prpmc_self(u8 bus, u8 devfn)
-{
- /*
- * Harriers always view themselves as being on bus 0. If we're not
- * looking at bus 0, we're not going to find ourselves.
- */
- if (bus != 0)
- return PCIBIOS_DEVICE_NOT_FOUND;
- else {
- int result;
- int val;
- struct pci_controller *hose;
-
- hose = pci_bus_to_hose(bus);
-
- /* See if target device is a Harrier */
- result = prpmc_read_config_dword(hose, bus, devfn,
- PCI_VENDOR_ID, &val);
- if ((result != PCIBIOS_SUCCESSFUL) ||
- (val != HARRIER_PCI_VEND_DEV_ID))
- return PCIBIOS_DEVICE_NOT_FOUND;
-
- /*
- * LBA bit is set if target Harrier == initiating Harrier
- * (i.e. if we are reading our own PCI header).
- */
- result = prpmc_read_config_dword(hose, bus, devfn,
- HARRIER_LBA_OFF, &val);
- if ((result != PCIBIOS_SUCCESSFUL) ||
- ((val & HARRIER_LBA_MSK) != HARRIER_LBA_MSK))
- return PCIBIOS_DEVICE_NOT_FOUND;
-
- /* It's us, save our location for later */
- self = devfn;
- found_self = 1;
- return PCIBIOS_SUCCESSFUL;
- }
-}
-
-static int prpmc_exclude_device(u8 bus, u8 devfn)
-{
- /*
- * Monarch is allowed to access all PCI devices. Non-monarch is
- * only allowed to access its own Harrier.
- */
-
- if (MONARCH)
- return PCIBIOS_SUCCESSFUL;
- if (found_self)
- if ((bus == 0) && (devfn == self))
- return PCIBIOS_SUCCESSFUL;
- else
- return PCIBIOS_DEVICE_NOT_FOUND;
- else
- return prpmc_self(bus, devfn);
-}
-
-void __init prpmc800_find_bridges(void)
-{
- struct pci_controller *hose;
- int host_bridge;
-
- hose = pcibios_alloc_controller();
- if (!hose)
- return;
-
- hose->first_busno = 0;
- hose->last_busno = 0xff;
-
- ppc_md.pci_exclude_device = prpmc_exclude_device;
- ppc_md.pcibios_fixup = NULL;
- ppc_md.pcibios_fixup_bus = NULL;
- ppc_md.pci_swizzle = common_swizzle;
- ppc_md.pci_map_irq = prpmc_map_irq;
-
- setup_indirect_pci(hose,
- PRPMC800_PCI_CONFIG_ADDR, PRPMC800_PCI_CONFIG_DATA);
-
- /* Get host bridge vendor/dev id */
-
- host_bridge = in_be32((uint *) (HARRIER_VENI_REG));
-
- if (host_bridge != HARRIER_VEND_DEV_ID) {
- printk(KERN_CRIT "Host bridge 0x%x not supported\n",
- host_bridge);
- return;
- }
-
- monarch = in_be32((uint *) HARRIER_MISC_CSR) & HARRIER_SYSCON;
-
- printk(KERN_INFO "Running as %s.\n",
- MONARCH ? "Monarch" : "Non-Monarch");
-
- hose->io_space.start = PRPMC800_PCI_IO_START;
- hose->io_space.end = PRPMC800_PCI_IO_END;
- hose->io_base_virt = (void *)PRPMC800_ISA_IO_BASE;
- hose->pci_mem_offset = PRPMC800_PCI_PHY_MEM_OFFSET;
-
- pci_init_resource(&hose->io_resource,
- PRPMC800_PCI_IO_START, PRPMC800_PCI_IO_END,
- IORESOURCE_IO, "PCI host bridge");
-
- if (MONARCH) {
- hose->mem_space.start = PRPMC800_PCI_MEM_START;
- hose->mem_space.end = PRPMC800_PCI_MEM_END;
-
- pci_init_resource(&hose->mem_resources[0],
- PRPMC800_PCI_MEM_START,
- PRPMC800_PCI_MEM_END,
- IORESOURCE_MEM, "PCI host bridge");
-
- if (harrier_init(hose,
- PRPMC800_HARRIER_XCSR_BASE,
- PRPMC800_PROC_PCI_MEM_START,
- PRPMC800_PROC_PCI_MEM_END,
- PRPMC800_PROC_PCI_IO_START,
- PRPMC800_PROC_PCI_IO_END,
- PRPMC800_HARRIER_MPIC_BASE) != 0)
- printk(KERN_CRIT "Could not initialize HARRIER "
- "bridge\n");
-
- harrier_release_eready(PRPMC800_HARRIER_XCSR_BASE);
- harrier_wait_eready(PRPMC800_HARRIER_XCSR_BASE);
- hose->last_busno = pciauto_bus_scan(hose, hose->first_busno);
-
- } else {
- pci_init_resource(&hose->mem_resources[0],
- PRPMC800_NM_PCI_MEM_START,
- PRPMC800_NM_PCI_MEM_END,
- IORESOURCE_MEM, "PCI host bridge");
-
- hose->mem_space.start = PRPMC800_NM_PCI_MEM_START;
- hose->mem_space.end = PRPMC800_NM_PCI_MEM_END;
-
- if (harrier_init(hose,
- PRPMC800_HARRIER_XCSR_BASE,
- PRPMC800_NM_PROC_PCI_MEM_START,
- PRPMC800_NM_PROC_PCI_MEM_END,
- PRPMC800_PROC_PCI_IO_START,
- PRPMC800_PROC_PCI_IO_END,
- PRPMC800_HARRIER_MPIC_BASE) != 0)
- printk(KERN_CRIT "Could not initialize HARRIER "
- "bridge\n");
-
- harrier_setup_nonmonarch(PRPMC800_HARRIER_XCSR_BASE,
- HARRIER_ITSZ_1MB);
- harrier_release_eready(PRPMC800_HARRIER_XCSR_BASE);
- }
-}
-
-static int prpmc800_show_cpuinfo(struct seq_file *m)
-{
- seq_printf(m, "machine\t\t: PrPMC800\n");
-
- return 0;
-}
-
-static void __init prpmc800_setup_arch(void)
-{
- /* init to some ~sane value until calibrate_delay() runs */
- loops_per_jiffy = 50000000 / HZ;
-
- /* Lookup PCI host bridges */
- prpmc800_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
-
- printk(KERN_INFO "Port by MontaVista Software, Inc. "
- "(source@mvista.com)\n");
-}
-
-/*
- * Compute the PrPMC800's tbl frequency using the baud clock as a reference.
- */
-static void __init prpmc800_calibrate_decr(void)
-{
- unsigned long tbl_start, tbl_end;
- unsigned long current_state, old_state, tb_ticks_per_second;
- unsigned int count;
- unsigned int harrier_revision;
-
- harrier_revision = readb(HARRIER_REVI_REG);
- if (harrier_revision < 2) {
- /* XTAL64 was broken in harrier revision 1 */
- printk(KERN_INFO "time_init: Harrier revision %d, assuming "
- "100 Mhz bus\n", harrier_revision);
- tb_ticks_per_second = 100000000 / 4;
- tb_ticks_per_jiffy = tb_ticks_per_second / HZ;
- tb_to_us = mulhwu_scale_factor(tb_ticks_per_second, 1000000);
- return;
- }
-
- /*
- * The XTAL64 bit oscillates at the 1/64 the base baud clock
- * Set count to XTAL64 cycles per second. Since we'll count
- * half-cycles, we'll reach the count in half a second.
- */
- count = PRPMC800_BASE_BAUD / 64;
-
- /* Find the first edge of the baud clock */
- old_state = readb(HARRIER_UCTL_REG) & HARRIER_XTAL64_MASK;
- do {
- current_state = readb(HARRIER_UCTL_REG) & HARRIER_XTAL64_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 (half-cycles)
- * equal to the count (half a second)
- */
- do {
- do {
- current_state = readb(HARRIER_UCTL_REG) &
- HARRIER_XTAL64_MASK;
- } while (old_state == current_state);
- old_state = current_state;
- } while (--count);
-
- /* Get the ending time base value */
- tbl_end = get_tbl();
-
- /* We only counted for half a second, so double to get ticks/second */
- tb_ticks_per_second = (tbl_end - tbl_start) * 2;
- tb_ticks_per_jiffy = tb_ticks_per_second / HZ;
- tb_to_us = mulhwu_scale_factor(tb_ticks_per_second, 1000000);
-}
-
-static void prpmc800_restart(char *cmd)
-{
- ulong temp;
-
- local_irq_disable();
- temp = in_be32((uint *) HARRIER_MISC_CSR_REG);
- temp |= HARRIER_RSTOUT;
- out_be32((uint *) HARRIER_MISC_CSR_REG, temp);
- while (1) ;
-}
-
-static void prpmc800_halt(void)
-{
- local_irq_disable();
- while (1) ;
-}
-
-static void prpmc800_power_off(void)
-{
- prpmc800_halt();
-}
-
-static void __init prpmc800_init_IRQ(void)
-{
- OpenPIC_InitSenses = prpmc800_openpic_initsenses;
- OpenPIC_NumInitSenses = sizeof(prpmc800_openpic_initsenses);
-
- /* Setup external interrupt sources. */
- openpic_set_sources(0, 16, OpenPIC_Addr + 0x10000);
- /* Setup internal UART interrupt source. */
- openpic_set_sources(16, 1, OpenPIC_Addr + 0x10200);
-
- /* Do the MPIC initialization based on the above settings. */
- openpic_init(0);
-
- /* enable functional exceptions for uarts and abort */
- out_8((u8 *) HARRIER_FEEN_REG, (HARRIER_FE_UA0 | HARRIER_FE_UA1));
- out_8((u8 *) HARRIER_FEMA_REG, ~(HARRIER_FE_UA0 | HARRIER_FE_UA1));
-}
-
-/*
- * Set BAT 3 to map 0xf0000000 to end of physical memory space.
- */
-static __inline__ void prpmc800_set_bat(void)
-{
- mb();
- mtspr(SPRN_DBAT1U, 0xf0001ffe);
- mtspr(SPRN_DBAT1L, 0xf000002a);
- mb();
-}
-
-/*
- * We need to read the Harrier memory controller
- * to properly determine this value
- */
-static unsigned long __init prpmc800_find_end_of_memory(void)
-{
- /* Read the memory size from the Harrier XCSR */
- return harrier_get_mem_size(PRPMC800_HARRIER_XCSR_BASE);
-}
-
-static void __init prpmc800_map_io(void)
-{
- io_block_mapping(0x80000000, 0x80000000, 0x10000000, _PAGE_IO);
- io_block_mapping(0xf0000000, 0xf0000000, 0x10000000, _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());
-
- prpmc800_set_bat();
-
- isa_io_base = PRPMC800_ISA_IO_BASE;
- isa_mem_base = PRPMC800_ISA_MEM_BASE;
- pci_dram_offset = PRPMC800_PCI_DRAM_OFFSET;
-
- ppc_md.setup_arch = prpmc800_setup_arch;
- ppc_md.show_cpuinfo = prpmc800_show_cpuinfo;
- ppc_md.init_IRQ = prpmc800_init_IRQ;
- ppc_md.get_irq = openpic_get_irq;
-
- ppc_md.find_end_of_memory = prpmc800_find_end_of_memory;
- ppc_md.setup_io_mappings = prpmc800_map_io;
-
- ppc_md.restart = prpmc800_restart;
- ppc_md.power_off = prpmc800_power_off;
- ppc_md.halt = prpmc800_halt;
-
- /* PrPMC800 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 = prpmc800_calibrate_decr;
-#ifdef CONFIG_SERIAL_TEXT_DEBUG
- ppc_md.progress = gen550_progress;
-#else /* !CONFIG_SERIAL_TEXT_DEBUG */
- ppc_md.progress = NULL;
-#endif /* CONFIG_SERIAL_TEXT_DEBUG */
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-08 11:52:01 +0000