+++ /dev/null
-/*
- * STx GP3 board specific routines
- *
- * Dan Malek <dan@embeddededge.com>
- * Copyright 2004 Embedded Edge, LLC
- *
- * Copied from mpc8560_ads.c
- * Copyright 2002, 2003 Motorola Inc.
- *
- * Ported to 2.6, Matt Porter <mporter@kernel.crashing.org>
- * Copyright 2004-2005 MontaVista Software, Inc.
- *
- * 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/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/blkdev.h>
-#include <linux/console.h>
-#include <linux/delay.h>
-#include <linux/root_dev.h>
-#include <linux/seq_file.h>
-#include <linux/serial.h>
-#include <linux/initrd.h>
-#include <linux/module.h>
-#include <linux/fsl_devices.h>
-#include <linux/interrupt.h>
-#include <linux/rio.h>
-
-#include <asm/system.h>
-#include <asm/pgtable.h>
-#include <asm/page.h>
-#include <asm/atomic.h>
-#include <asm/time.h>
-#include <asm/io.h>
-#include <asm/machdep.h>
-#include <asm/open_pic.h>
-#include <asm/bootinfo.h>
-#include <asm/pci-bridge.h>
-#include <asm/mpc85xx.h>
-#include <asm/irq.h>
-#include <asm/immap_85xx.h>
-#include <asm/cpm2.h>
-#include <asm/ppc_sys.h>
-
-#include <syslib/cpm2_pic.h>
-#include <syslib/ppc85xx_common.h>
-
-
-unsigned char __res[sizeof(bd_t)];
-
-#ifndef CONFIG_PCI
-unsigned long isa_io_base = 0;
-unsigned long isa_mem_base = 0;
-unsigned long pci_dram_offset = 0;
-#endif
-
-/* Internal interrupts are all Level Sensitive, and Positive Polarity */
-static u8 gp3_openpic_initsenses[] __initdata = {
- MPC85XX_INTERNAL_IRQ_SENSES,
- 0x0, /* External 0: */
-#if defined(CONFIG_PCI)
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* External 1: PCI slot 0 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* External 2: PCI slot 1 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* External 3: PCI slot 2 */
- (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE), /* External 4: PCI slot 3 */
-#else
- 0x0, /* External 1: */
- 0x0, /* External 2: */
- 0x0, /* External 3: */
- 0x0, /* External 4: */
-#endif
- 0x0, /* External 5: */
- 0x0, /* External 6: */
- 0x0, /* External 7: */
- 0x0, /* External 8: */
- 0x0, /* External 9: */
- 0x0, /* External 10: */
- 0x0, /* External 11: */
-};
-
-/*
- * Setup the architecture
- */
-static void __init
-gp3_setup_arch(void)
-{
- bd_t *binfo = (bd_t *) __res;
- unsigned int freq;
- struct gianfar_platform_data *pdata;
- struct gianfar_mdio_data *mdata;
-
- cpm2_reset();
-
- /* get the core frequency */
- freq = binfo->bi_intfreq;
-
- if (ppc_md.progress)
- ppc_md.progress("gp3_setup_arch()", 0);
-
- /* Set loops_per_jiffy to a half-way reasonable value,
- for use until calibrate_delay gets called. */
- loops_per_jiffy = freq / HZ;
-
-#ifdef CONFIG_PCI
- /* setup PCI host bridges */
- mpc85xx_setup_hose();
-#endif
-
- /* setup the board related info for the MDIO bus */
- mdata = (struct gianfar_mdio_data *) ppc_sys_get_pdata(MPC85xx_MDIO);
-
- mdata->irq[2] = MPC85xx_IRQ_EXT5;
- mdata->irq[4] = MPC85xx_IRQ_EXT5;
- mdata->irq[31] = PHY_POLL;
-
- /* setup the board related information for the enet controllers */
- pdata = (struct gianfar_platform_data *) ppc_sys_get_pdata(MPC85xx_TSEC1);
- if (pdata) {
- /* pdata->board_flags = FSL_GIANFAR_BRD_HAS_PHY_INTR; */
- pdata->bus_id = 0;
- pdata->phy_id = 2;
- memcpy(pdata->mac_addr, binfo->bi_enetaddr, 6);
- }
-
- pdata = (struct gianfar_platform_data *) ppc_sys_get_pdata(MPC85xx_TSEC2);
- if (pdata) {
- /* pdata->board_flags = FSL_GIANFAR_BRD_HAS_PHY_INTR; */
- pdata->bus_id = 0;
- pdata->phy_id = 4;
- memcpy(pdata->mac_addr, binfo->bi_enet1addr, 6);
- }
-
-#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_HDA1;
-#endif
-
- printk ("bi_immr_base = %8.8lx\n", binfo->bi_immr_base);
-}
-
-static irqreturn_t cpm2_cascade(int irq, void *dev_id)
-{
- while ((irq = cpm2_get_irq()) >= 0)
- __do_IRQ(irq);
-
- return IRQ_HANDLED;
-}
-
-static struct irqaction cpm2_irqaction = {
- .handler = cpm2_cascade,
- .flags = IRQF_DISABLED,
- .mask = CPU_MASK_NONE,
- .name = "cpm2_cascade",
-};
-
-static void __init
-gp3_init_IRQ(void)
-{
- bd_t *binfo = (bd_t *) __res;
-
- /*
- * Setup OpenPIC
- */
-
- /* Determine the Physical Address of the OpenPIC regs */
- phys_addr_t OpenPIC_PAddr =
- binfo->bi_immr_base + MPC85xx_OPENPIC_OFFSET;
- OpenPIC_Addr = ioremap(OpenPIC_PAddr, MPC85xx_OPENPIC_SIZE);
- OpenPIC_InitSenses = gp3_openpic_initsenses;
- OpenPIC_NumInitSenses = sizeof (gp3_openpic_initsenses);
-
- /* Skip reserved space and internal sources */
- openpic_set_sources(0, 32, OpenPIC_Addr + 0x10200);
-
- /* Map PIC IRQs 0-11 */
- openpic_set_sources(48, 12, OpenPIC_Addr + 0x10000);
-
- /*
- * Let openpic interrupts starting from an offset, to
- * leave space for cascading interrupts underneath.
- */
- openpic_init(MPC85xx_OPENPIC_IRQ_OFFSET);
-
- /* Setup CPM2 PIC */
- cpm2_init_IRQ();
-
- setup_irq(MPC85xx_IRQ_CPM, &cpm2_irqaction);
-
- return;
-}
-
-static int
-gp3_show_cpuinfo(struct seq_file *m)
-{
- uint pvid, svid, phid1;
- bd_t *binfo = (bd_t *) __res;
- uint memsize;
- unsigned int freq;
- extern unsigned long total_memory; /* in mm/init */
-
- /* get the core frequency */
- freq = binfo->bi_intfreq;
-
- pvid = mfspr(SPRN_PVR);
- svid = mfspr(SPRN_SVR);
-
- memsize = total_memory;
-
- seq_printf(m, "Vendor\t\t: RPC Electronics STx \n");
- seq_printf(m, "Machine\t\t: GP3 - MPC%s\n", cur_ppc_sys_spec->ppc_sys_name);
- seq_printf(m, "bus freq\t: %u.%.6u MHz\n", freq / 1000000,
- freq % 1000000);
- seq_printf(m, "PVR\t\t: 0x%x\n", pvid);
- seq_printf(m, "SVR\t\t: 0x%x\n", svid);
-
- /* Display cpu Pll setting */
- phid1 = mfspr(SPRN_HID1);
- seq_printf(m, "PLL setting\t: 0x%x\n", ((phid1 >> 24) & 0x3f));
-
- /* Display the amount of memory */
- seq_printf(m, "Memory\t\t: %d MB\n", memsize / (1024 * 1024));
-
- return 0;
-}
-
-#ifdef CONFIG_PCI
-int mpc85xx_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
- */
- {
- {PIRQA, PIRQB, PIRQC, PIRQD},
- {PIRQD, PIRQA, PIRQB, PIRQC},
- {PIRQC, PIRQD, PIRQA, PIRQB},
- {PIRQB, PIRQC, PIRQD, PIRQA},
- };
-
- const long min_idsel = 12, max_idsel = 15, irqs_per_slot = 4;
- return PCI_IRQ_TABLE_LOOKUP;
-}
-
-int mpc85xx_exclude_device(u_char bus, u_char devfn)
-{
- if (bus == 0 && PCI_SLOT(devfn) == 0)
- return PCIBIOS_DEVICE_NOT_FOUND;
- else
- return PCIBIOS_SUCCESSFUL;
-}
-#endif /* CONFIG_PCI */
-
-#ifdef CONFIG_RAPIDIO
-extern void mpc85xx_rio_setup(int law_start, int law_size);
-void
-platform_rio_init(void)
-{
- /*
- * The STx firmware configures the RapidIO Local Access Window
- * at 0xc0000000 with a size of 512MB.
- */
- mpc85xx_rio_setup(0xc0000000, 0x20000000);
-}
-#endif /* CONFIG_RAPIDIO */
-
-void __init
-platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
- unsigned long r6, unsigned long r7)
-{
- /* parse_bootinfo must always be called first */
- parse_bootinfo(find_bootinfo());
-
- /*
- * If we were passed in a board information, copy it into the
- * residual data area.
- */
- if (r3) {
- memcpy((void *) __res, (void *) (r3 + KERNELBASE),
- sizeof (bd_t));
-
- }
-#if defined(CONFIG_BLK_DEV_INITRD)
- /*
- * If the init RAM disk has been configured in, and there's a valid
- * starting address for it, set it up.
- */
- if (r4) {
- initrd_start = r4 + KERNELBASE;
- initrd_end = r5 + KERNELBASE;
- }
-#endif /* CONFIG_BLK_DEV_INITRD */
-
- /* Copy the kernel command line arguments to a safe place. */
-
- if (r6) {
- *(char *) (r7 + KERNELBASE) = 0;
- strcpy(cmd_line, (char *) (r6 + KERNELBASE));
- }
-
- identify_ppc_sys_by_id(mfspr(SPRN_SVR));
-
- /* setup the PowerPC module struct */
- ppc_md.setup_arch = gp3_setup_arch;
- ppc_md.show_cpuinfo = gp3_show_cpuinfo;
-
- ppc_md.init_IRQ = gp3_init_IRQ;
- ppc_md.get_irq = openpic_get_irq;
-
- ppc_md.restart = mpc85xx_restart;
- ppc_md.power_off = mpc85xx_power_off;
- ppc_md.halt = mpc85xx_halt;
-
- ppc_md.find_end_of_memory = mpc85xx_find_end_of_memory;
-
- ppc_md.calibrate_decr = mpc85xx_calibrate_decr;
-
- if (ppc_md.progress)
- ppc_md.progress("platform_init(): exit", 0);
-
- return;
-}
git.samba.org / sfrench / cifs-2.6.git / blobdiff