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Diffstat (limited to 'board/amcc/taishan/taishan.c')
| -rw-r--r-- | board/amcc/taishan/taishan.c | 331 |
1 files changed, 331 insertions, 0 deletions
diff --git a/board/amcc/taishan/taishan.c b/board/amcc/taishan/taishan.c new file mode 100644 index 0000000..7e02371 --- /dev/null +++ b/board/amcc/taishan/taishan.c @@ -0,0 +1,331 @@ +/* + * 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 |