/* * GNU General Public License for more details. * * MATRIX Vision GmbH / June 2002-Nov 2003 * Andre Schwarz */ #include <common.h> #include <mpc824x.h> #include <asm/io.h> #include <ns16550.h> #ifdef CONFIG_PCI #include <pci.h> #endif DECLARE_GLOBAL_DATA_PTR; u32 get_BoardType (void); #define PCI_CONFIG(b,d,f,r) cpu_to_le32(0x80000000 | ((b&0xff)<<16) \ | ((d&0x1f)<<11) \ | ((f&0x7)<<7) \ | (r&0xfc) ) int mv_pci_read (int bus, int dev, int func, int reg) { *(u32 *) (0xfec00cf8) = PCI_CONFIG (bus, dev, func, reg); asm ("sync"); return cpu_to_le32 (*(u32 *) (0xfee00cfc)); } u32 get_BoardType () { return (mv_pci_read (0, 0xe, 0, 0) == 0x06801095 ? 0 : 1); } void init_2nd_DUART (void) { NS16550_t console = (NS16550_t) CFG_NS16550_COM2; int clock_divisor = CFG_NS16550_CLK / 16 / CONFIG_BAUDRATE; *(u8 *) (0xfc004511) = 0x1; NS16550_init (console, clock_divisor); } void hw_watchdog_reset (void) { if (get_BoardType () == 0) { *(u32 *) (0xff000005) = 0; asm ("sync"); } } int checkboard (void) { ulong busfreq = get_bus_freq (0); char buf[32]; u32 BoardType = get_BoardType (); char *BoardName[2] = { "mvBlueBOX", "mvBlueLYNX" }; char *p; bd_t *bd = gd->bd; hw_watchdog_reset (); printf ("U-Boot (%s) running on mvBLUE device.\n", MV_VERSION); printf (" Found %s running at %s MHz memory clock.\n", BoardName[BoardType], strmhz (buf, busfreq)); init_2nd_DUART (); if ((p = getenv ("console_nr")) != NULL) { unsigned long con_nr = simple_strtoul (p, NULL, 10) & 3; bd->bi_baudrate &= ~3; bd->bi_baudrate |= con_nr & 3; } return 0; } long int initdram (int board_type) { long size; long new_bank0_end; long mear1; long emear1; size = get_ram_size(CFG_SDRAM_BASE, CFG_MAX_RAM_SIZE); new_bank0_end = size - 1; mear1 = mpc824x_mpc107_getreg(MEAR1); emear1 = mpc824x_mpc107_getreg(EMEAR1); mear1 = (mear1 & 0xFFFFFF00) | ((new_bank0_end & MICR_ADDR_MASK) >> MICR_ADDR_SHIFT); emear1 = (emear1 & 0xFFFFFF00) | ((new_bank0_end & MICR_ADDR_MASK) >> MICR_EADDR_SHIFT); mpc824x_mpc107_setreg(MEAR1, mear1); mpc824x_mpc107_setreg(EMEAR1, emear1); return (size); } /* ------------------------------------------------------------------------- */ u8 *dhcp_vendorex_prep (u8 * e) { char *ptr; /* DHCP vendor-class-identifier = 60 */ if ((ptr = getenv ("dhcp_vendor-class-identifier"))) { *e++ = 60; *e++ = strlen (ptr); while (*ptr) *e++ = *ptr++; } /* my DHCP_CLIENT_IDENTIFIER = 61 */ if ((ptr = getenv ("dhcp_client_id"))) { *e++ = 61; *e++ = strlen (ptr); while (*ptr) *e++ = *ptr++; } return e; } u8 *dhcp_vendorex_proc (u8 * popt) { return NULL; } /* ------------------------------------------------------------------------- */ /* * Initialize PCI Devices */ #ifdef CONFIG_PCI void pci_mvblue_clear_base (struct pci_controller *hose, pci_dev_t dev) { u32 cnt; printf ("clear base @ dev/func 0x%02x/0x%02x ... ", PCI_DEV (dev), PCI_FUNC (dev)); for (cnt = 0; cnt < 6; cnt++) pci_hose_write_config_dword (hose, dev, 0x10 + (4 * cnt), 0x0); printf ("done\n"); } void duart_setup (u32 base, u16 divisor) { printf ("duart setup ..."); out_8 ((u8 *) (CFG_ISA_IO + base + 3), 0x80); out_8 ((u8 *) (CFG_ISA_IO + base + 0), divisor & 0xff); out_8 ((u8 *) (CFG_ISA_IO + base + 1), divisor >> 8); out_8 ((u8 *) (CFG_ISA_IO + base + 3), 0x03); out_8 ((u8 *) (CFG_ISA_IO + base + 4), 0x03); out_8 ((u8 *) (CFG_ISA_IO + base + 2), 0x07); printf ("done\n"); } void pci_mvblue_fixup_irq_behind_bridge (struct pci_controller *hose, pci_dev_t bridge, unsigned char irq) { pci_dev_t d; unsigned char bus; unsigned short vendor, class; pci_hose_read_config_byte (hose, bridge, PCI_SECONDARY_BUS, &bus); for (d = PCI_BDF (bus, 0, 0); d < PCI_BDF (bus, PCI_MAX_PCI_DEVICES - 1, PCI_MAX_PCI_FUNCTIONS - 1); d += PCI_BDF (0, 0, 1)) { pci_hose_read_config_word (hose, d, PCI_VENDOR_ID, &vendor); if (vendor != 0xffff && vendor != 0x0000) { pci_hose_read_config_word (hose, d, PCI_CLASS_DEVICE, &class); if (class == PCI_CLASS_BRIDGE_PCI) pci_mvblue_fixup_irq_behind_bridge (hose, d, irq); else pci_hose_write_config_byte (hose, d, PCI_INTERRUPT_LINE, irq); } } } #define MV_MAX_PCI_BUSSES 3 #define SLOT0_IRQ 3 #define SLOT1_IRQ 4 void pci_mvblue_fixup_irq (struct pci_controller *hose, pci_dev_t dev) { unsigned char line = 0xff; unsigned short class; if (PCI_BUS (dev) == 0) { switch (PCI_DEV (dev)) { case 0xd: if (get_BoardType () == 0) { line = 1; } else /* mvBL */ line = 2; break; case 0xe: /* mvBB: IDE */ line = 2; pci_hose_write_config_byte (hose, dev, 0x8a, 0x20); break; case 0xf: /* mvBB: Slot0 (Grabber) */ pci_hose_read_config_word (hose, dev, PCI_CLASS_DEVICE, &class); if (class == PCI_CLASS_BRIDGE_PCI) { pci_mvblue_fixup_irq_behind_bridge (hose, dev, SLOT0_IRQ); line = 0xff; } else line = SLOT0_IRQ; break; case 0x10: /* mvBB: Slot1 */ pci_hose_read_config_word (hose, dev, PCI_CLASS_DEVICE, &class); if (class == PCI_CLASS_BRIDGE_PCI) { pci_mvblue_fixup_irq_behind_bridge (hose, dev, SLOT1_IRQ); line = 0xff; } else line = SLOT1_IRQ; break; default: printf ("***pci_scan: illegal dev = 0x%08x\n", PCI_DEV (dev)); line = 0xff; break; } pci_hose_write_config_byte (hose, dev, PCI_INTERRUPT_LINE, line); } } struct pci_controller hose = { fixup_irq:pci_mvblue_fixup_irq }; void pci_init_board (void) { pci_mpc824x_init (&hose); } #endif