/* * Copyright (C) 2004 PaulReynolds@lhsolutions.com * * (C) Copyright 2007 * Stefan Roese, DENX Software Engineering, sr@denx.de. * * See file CREDITS for list of people who contributed to this * project. * * 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. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA */ #include <common.h> #include <asm/processor.h> #include <spd_sdram.h> #include <ppc4xx_enet.h> #ifdef CFG_INIT_SHOW_RESET_REG void show_reset_reg(void); #endif int lcd_init(void); int board_early_init_f (void) { unsigned long reg; volatile unsigned int *GpioOdr; volatile unsigned int *GpioTcr; volatile unsigned int *GpioOr; /*-------------------------------------------------------------------------+ | Initialize EBC CONFIG +-------------------------------------------------------------------------*/ mtebc(xbcfg, EBC_CFG_LE_UNLOCK | EBC_CFG_PTD_ENABLE | EBC_CFG_RTC_64PERCLK | EBC_CFG_ATC_PREVIOUS | EBC_CFG_DTC_PREVIOUS | EBC_CFG_CTC_PREVIOUS | EBC_CFG_EMC_DEFAULT | EBC_CFG_PME_DISABLE | EBC_CFG_PR_32); /*-------------------------------------------------------------------------+ | 64MB FLASH. Initialize bank 0 with default values. +-------------------------------------------------------------------------*/ mtebc(pb0ap, EBC_BXAP_BME_DISABLED|EBC_BXAP_TWT_ENCODE(15) | EBC_BXAP_BCE_DISABLE | EBC_BXAP_CSN_ENCODE(1) | EBC_BXAP_OEN_ENCODE(1) | EBC_BXAP_WBN_ENCODE(1) | EBC_BXAP_WBF_ENCODE(1) | EBC_BXAP_TH_ENCODE(3) | EBC_BXAP_RE_DISABLED | EBC_BXAP_BEM_WRITEONLY | EBC_BXAP_PEN_DISABLED); mtebc(pb0cr, EBC_BXCR_BAS_ENCODE(CFG_FLASH_BASE) | EBC_BXCR_BS_64MB | EBC_BXCR_BU_RW|EBC_BXCR_BW_32BIT); /*-------------------------------------------------------------------------+ | FPGA. Initialize bank 1 with default values. +-------------------------------------------------------------------------*/ mtebc(pb1ap, EBC_BXAP_BME_DISABLED|EBC_BXAP_TWT_ENCODE(5) | EBC_BXAP_BCE_DISABLE | EBC_BXAP_CSN_ENCODE(1) | EBC_BXAP_OEN_ENCODE(1) | EBC_BXAP_WBN_ENCODE(1) | EBC_BXAP_WBF_ENCODE(1) | EBC_BXAP_TH_ENCODE(3) | EBC_BXAP_RE_DISABLED | EBC_BXAP_BEM_WRITEONLY | EBC_BXAP_PEN_DISABLED); mtebc(pb1cr, EBC_BXCR_BAS_ENCODE(0x41000000) | EBC_BXCR_BS_1MB | EBC_BXCR_BU_RW | EBC_BXCR_BW_8BIT); /*-------------------------------------------------------------------------+ | LCM. Initialize bank 2 with default values. +-------------------------------------------------------------------------*/ mtebc(pb2ap, EBC_BXAP_BME_DISABLED | EBC_BXAP_TWT_ENCODE(64) | EBC_BXAP_BCE_DISABLE | EBC_BXAP_CSN_ENCODE(3) | EBC_BXAP_OEN_ENCODE(3) | EBC_BXAP_WBN_ENCODE(3) | EBC_BXAP_WBF_ENCODE(3) | EBC_BXAP_TH_ENCODE(7) | EBC_BXAP_RE_DISABLED | EBC_BXAP_BEM_WRITEONLY | EBC_BXAP_PEN_DISABLED); mtebc(pb2cr, EBC_BXCR_BAS_ENCODE(0x42000000) | EBC_BXCR_BS_1MB | EBC_BXCR_BU_RW|EBC_BXCR_BW_8BIT); /*-------------------------------------------------------------------------+ | TMP. Initialize bank 3 with default values. +-------------------------------------------------------------------------*/ mtebc(pb3ap, EBC_BXAP_BME_DISABLED | EBC_BXAP_TWT_ENCODE(128) | EBC_BXAP_BCE_DISABLE | EBC_BXAP_CSN_ENCODE(3) | EBC_BXAP_OEN_ENCODE(3) | EBC_BXAP_WBN_ENCODE(3) | EBC_BXAP_WBF_ENCODE(3) | EBC_BXAP_TH_ENCODE(7) | EBC_BXAP_RE_DISABLED | EBC_BXAP_BEM_WRITEONLY | EBC_BXAP_PEN_DISABLED); mtebc(pb3cr, EBC_BXCR_BAS_ENCODE(0x48000000) | EBC_BXCR_BS_64MB | EBC_BXCR_BU_RW | EBC_BXCR_BW_32BIT); /*-------------------------------------------------------------------------+ | Connector 4~7. Initialize bank 3~ 7 with default values. +-------------------------------------------------------------------------*/ mtebc(pb4ap,0); mtebc(pb4cr,0); mtebc(pb5ap,0); mtebc(pb5cr,0); mtebc(pb6ap,0); mtebc(pb6cr,0); mtebc(pb7ap,0); mtebc(pb7cr,0); /*-------------------------------------------------------------------- * Setup the interrupt controller polarities, triggers, etc. *-------------------------------------------------------------------*/ mtdcr (uic0sr, 0xffffffff); /* clear all */ mtdcr (uic0er, 0x00000000); /* disable all */ mtdcr (uic0cr, 0x00000009); /* SMI & UIC1 crit are critical */ mtdcr (uic0pr, 0xfffffe13); /* per ref-board manual */ mtdcr (uic0tr, 0x01c00008); /* per ref-board manual */ mtdcr (uic0vr, 0x00000001); /* int31 highest, base=0x000 */ mtdcr (uic0sr, 0xffffffff); /* clear all */ mtdcr (uic1sr, 0xffffffff); /* clear all */ mtdcr (uic1er, 0x00000000); /* disable all */ mtdcr (uic1cr, 0x00000000); /* all non-critical */ mtdcr (uic1pr, 0xffffe0ff); /* per ref-board manual */ mtdcr (uic1tr, 0x00ffc000); /* per ref-board manual */ mtdcr (uic1vr, 0x00000001); /* int31 highest, base=0x000 */ mtdcr (uic1sr, 0xffffffff); /* clear all */ mtdcr (uic2sr, 0xffffffff); /* clear all */ mtdcr (uic2er, 0x00000000); /* disable all */ mtdcr (uic2cr, 0x00000000); /* all non-critical */ mtdcr (uic2pr, 0xffffffff); /* per ref-board manual */ mtdcr (uic2tr, 0x00ff8c0f); /* per ref-board manual */ mtdcr (uic2vr, 0x00000001); /* int31 highest, base=0x000 */ mtdcr (uic2sr, 0xffffffff); /* clear all */ mtdcr (uicb0sr, 0xfc000000); /* clear all */ mtdcr (uicb0er, 0x00000000); /* disable all */ mtdcr (uicb0cr, 0x00000000); /* all non-critical */ mtdcr (uicb0pr, 0xfc000000); /* */ mtdcr (uicb0tr, 0x00000000); /* */ mtdcr (uicb0vr, 0x00000001); /* */ /* Enable two GPIO 10~11 and TraceA signal */ mfsdr(sdr_pfc0,reg); reg |= 0x00300000; mtsdr(sdr_pfc0,reg); mfsdr(sdr_pfc1,reg); reg |= 0x00100000; mtsdr(sdr_pfc1,reg); /* Set GPIO 10 and 11 as output */ GpioOdr = (volatile unsigned int*)(CFG_PERIPHERAL_BASE+0x718); GpioTcr = (volatile unsigned int*)(CFG_PERIPHERAL_BASE+0x704); GpioOr = (volatile unsigned int*)(CFG_PERIPHERAL_BASE+0x700); *GpioOdr &= ~(0x00300000); *GpioTcr |= 0x00300000; *GpioOr |= 0x00300000; return 0; } int misc_init_r(void) { lcd_init(); return 0; } int checkboard (void) { char *s = getenv ("serial#"); printf ("Board: Taishan - AMCC PPC440GX Evaluation Board"); if (s != NULL) { puts (", serial# "); puts (s); } putc ('\n'); #ifdef CFG_INIT_SHOW_RESET_REG show_reset_reg(); #endif return (0); } #if defined(CFG_DRAM_TEST) int testdram (void) { uint *pstart = (uint *) 0x04000000; uint *pend = (uint *) 0x0fc00000; uint *p; for (p = pstart; p < pend; p++) *p = 0xaaaaaaaa; for (p = pstart; p < pend; p++) { if (*p != 0xaaaaaaaa) { printf ("SDRAM test fails at: %08x\n", (uint) p); return 1; } } for (p = pstart; p < pend; p++) *p = 0x55555555; for (p = pstart; p < pend; p++) { if (*p != 0x55555555) { printf ("SDRAM test fails at: %08x\n", (uint) p); return 1; } } return 0; } #endif /************************************************************************* * pci_pre_init * * This routine is called just prior to registering the hose and gives * the board the opportunity to check things. Returning a value of zero * indicates that things are bad & PCI initialization should be aborted. * * Different boards may wish to customize the pci controller structure * (add regions, override default access routines, etc) or perform * certain pre-initialization actions. * ************************************************************************/ #if defined(CONFIG_PCI) && defined(CFG_PCI_PRE_INIT) int pci_pre_init(struct pci_controller * hose ) { unsigned long strap; /*--------------------------------------------------------------------------+ * The ocotea board is always configured as the host & requires the * PCI arbiter to be enabled. *--------------------------------------------------------------------------*/ mfsdr(sdr_sdstp1, strap); if( (strap & SDR0_SDSTP1_PAE_MASK) == 0 ){ printf("PCI: SDR0_STRP1[%08lX] - PCI Arbiter disabled.\n",strap); return 0; } return 1; } #endif /* defined(CONFIG_PCI) && defined(CFG_PCI_PRE_INIT) */ /************************************************************************* * pci_target_init * * The bootstrap configuration provides default settings for the pci * inbound map (PIM). But the bootstrap config choices are limited and * may not be sufficient for a given board. * ************************************************************************/ #if defined(CONFIG_PCI) && defined(CFG_PCI_TARGET_INIT) void pci_target_init(struct pci_controller * hose ) { DECLARE_GLOBAL_DATA_PTR; /*--------------------------------------------------------------------------+ * Disable everything *--------------------------------------------------------------------------*/ out32r( PCIX0_PIM0SA, 0 ); /* disable */ out32r( PCIX0_PIM1SA, 0 ); /* disable */ out32r( PCIX0_PIM2SA, 0 ); /* disable */ out32r( PCIX0_EROMBA, 0 ); /* disable expansion rom */ /*--------------------------------------------------------------------------+ * Map all of SDRAM to PCI address 0x0000_0000. Note that the 440 strapping * options to not support sizes such as 128/256 MB. *--------------------------------------------------------------------------*/ out32r( PCIX0_PIM0LAL, CFG_SDRAM_BASE ); out32r( PCIX0_PIM0LAH, 0 ); out32r( PCIX0_PIM0SA, ~(gd->ram_size - 1) | 1 ); out32r( PCIX0_BAR0, 0 ); /*--------------------------------------------------------------------------+ * Program the board's subsystem id/vendor id *--------------------------------------------------------------------------*/ out16r( PCIX0_SBSYSVID, CFG_PCI_SUBSYS_VENDORID ); out16r( PCIX0_SBSYSID, CFG_PCI_SUBSYS_DEVICEID ); out16r( PCIX0_CMD, in16r(PCIX0_CMD) | PCI_COMMAND_MEMORY ); } #endif /* defined(CONFIG_PCI) && defined(CFG_PCI_TARGET_INIT) */ /************************************************************************* * is_pci_host * * This routine is called to determine if a pci scan should be * performed. With various hardware environments (especially cPCI and * PPMC) it's insufficient to depend on the state of the arbiter enable * bit in the strap register, or generic host/adapter assumptions. * * Rather than hard-code a bad assumption in the general 440 code, the * 440 pci code requires the board to decide at runtime. * * Return 0 for adapter mode, non-zero for host (monarch) mode. * * ************************************************************************/ #if defined(CONFIG_PCI) int is_pci_host(struct pci_controller *hose) { /* The ocotea board is always configured as host. */ return(1); } #endif /* defined(CONFIG_PCI) */ #ifdef CONFIG_POST /* * Returns 1 if keys pressed to start the power-on long-running tests * Called from board_init_f(). */ int post_hotkeys_pressed(void) { return (ctrlc()); } #endif