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authorStefan Roese <sr@denx.de>2005-08-01 16:49:12 +0200
committerStefan Roese <stefan@debian.(none)>2005-08-01 16:49:12 +0200
commit8a316c9b6215266b8f5f7bbae5ee12e8b8afac83 (patch)
tree52477fa047556404d79d61c7cefd6ab3d79c0441 /board/ebony/ebony.c
parentc157d8e219694f5c3dea1ed3826668bdc67ca093 (diff)
Major cleanup for AMCC PPC4xx eval boards.
Patch by Stefan Roese, 01 Aug 2005
Diffstat (limited to 'board/ebony/ebony.c')
-rw-r--r--board/ebony/ebony.c298
1 files changed, 0 insertions, 298 deletions
diff --git a/board/ebony/ebony.c b/board/ebony/ebony.c
deleted file mode 100644
index a5b3fb6538c..00000000000
--- a/board/ebony/ebony.c
+++ /dev/null
@@ -1,298 +0,0 @@
-/*
- * Copyright (C) 2002 Scott McNutt <smcnutt@artesyncp.com>
- *
- * 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 "ebony.h"
-#include <asm/processor.h>
-#include <spd_sdram.h>
-
-#define BOOT_SMALL_FLASH 32 /* 00100000 */
-#define FLASH_ONBD_N 2 /* 00000010 */
-#define FLASH_SRAM_SEL 1 /* 00000001 */
-
-long int fixed_sdram (void);
-
-int board_early_init_f (void)
-{
- uint reg;
- unsigned char *fpga_base = (unsigned char *) CFG_FPGA_BASE;
- unsigned char status;
-
-
- /*--------------------------------------------------------------------
- * Setup the external bus controller/chip selects
- *-------------------------------------------------------------------*/
- mtdcr (ebccfga, xbcfg);
- reg = mfdcr (ebccfgd);
- mtdcr (ebccfgd, reg | 0x04000000); /* Set ATC */
-
- mtebc (pb1ap, 0x02815480); /* NVRAM/RTC */
- mtebc (pb1cr, 0x48018000); /* BA=0x480 1MB R/W 8-bit */
- mtebc (pb7ap, 0x01015280); /* FPGA registers */
- mtebc (pb7cr, 0x48318000); /* BA=0x483 1MB R/W 8-bit */
-
- /* read FPGA_REG0 and set the bus controller */
- status = *fpga_base;
- if ((status & BOOT_SMALL_FLASH) && !(status & FLASH_ONBD_N)) {
- mtebc (pb0ap, 0x9b015480); /* FLASH/SRAM */
- mtebc (pb0cr, 0xfff18000); /* BAS=0xfff 1MB R/W 8-bit */
- mtebc (pb2ap, 0x9b015480); /* 4MB FLASH */
- mtebc (pb2cr, 0xff858000); /* BAS=0xff8 4MB R/W 8-bit */
- } else {
- mtebc (pb0ap, 0x9b015480); /* 4MB FLASH */
- mtebc (pb0cr, 0xffc58000); /* BAS=0xffc 4MB R/W 8-bit */
-
- /* set CS2 if FLASH_ONBD_N == 0 */
- if (!(status & FLASH_ONBD_N)) {
- mtebc (pb2ap, 0x9b015480); /* FLASH/SRAM */
- mtebc (pb2cr, 0xff818000); /* BAS=0xff8 4MB R/W 8-bit */
- }
- }
-
- /*--------------------------------------------------------------------
- * 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 */
-
- return 0;
-}
-
-
-int checkboard (void)
-{
- sys_info_t sysinfo;
-
- get_sys_info (&sysinfo);
-
- printf ("Board: IBM 440GP Evaluation Board (Ebony)\n");
- printf ("\tVCO: %lu MHz\n", sysinfo.freqVCOMhz / 1000000);
- printf ("\tCPU: %lu MHz\n", sysinfo.freqProcessor / 1000000);
- printf ("\tPLB: %lu MHz\n", sysinfo.freqPLB / 1000000);
- printf ("\tOPB: %lu MHz\n", sysinfo.freqOPB / 1000000);
- printf ("\tEPB: %lu MHz\n", sysinfo.freqEPB / 1000000);
- return (0);
-}
-
-
-long int initdram (int board_type)
-{
- long dram_size = 0;
-
-#if defined(CONFIG_SPD_EEPROM)
- dram_size = spd_sdram (0);
-#else
- dram_size = fixed_sdram ();
-#endif
- return dram_size;
-}
-
-
-#if defined(CFG_DRAM_TEST)
-int testdram (void)
-{
- uint *pstart = (uint *) 0x00000000;
- uint *pend = (uint *) 0x08000000;
- 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
-
-#if !defined(CONFIG_SPD_EEPROM)
-/*************************************************************************
- * fixed sdram init -- doesn't use serial presence detect.
- *
- * Assumes: 128 MB, non-ECC, non-registered
- * PLB @ 133 MHz
- *
- ************************************************************************/
-long int fixed_sdram (void)
-{
- uint reg;
-
- /*--------------------------------------------------------------------
- * Setup some default
- *------------------------------------------------------------------*/
- mtsdram (mem_uabba, 0x00000000); /* ubba=0 (default) */
- mtsdram (mem_slio, 0x00000000); /* rdre=0 wrre=0 rarw=0 */
- mtsdram (mem_devopt, 0x00000000); /* dll=0 ds=0 (normal) */
- mtsdram (mem_wddctr, 0x00000000); /* wrcp=0 dcd=0 */
- mtsdram (mem_clktr, 0x40000000); /* clkp=1 (90 deg wr) dcdt=0 */
-
- /*--------------------------------------------------------------------
- * Setup for board-specific specific mem
- *------------------------------------------------------------------*/
- /*
- * Following for CAS Latency = 2.5 @ 133 MHz PLB
- */
- mtsdram (mem_b0cr, 0x000a4001); /* SDBA=0x000 128MB, Mode 3, enabled */
- mtsdram (mem_tr0, 0x410a4012); /* WR=2 WD=1 CL=2.5 PA=3 CP=4 LD=2 */
- /* RA=10 RD=3 */
- mtsdram (mem_tr1, 0x8080082f); /* SS=T2 SL=STAGE 3 CD=1 CT=0x02f */
- mtsdram (mem_rtr, 0x08200000); /* Rate 15.625 ns @ 133 MHz PLB */
- mtsdram (mem_cfg1, 0x00000000); /* Self-refresh exit, disable PM */
- udelay (400); /* Delay 200 usecs (min) */
-
- /*--------------------------------------------------------------------
- * Enable the controller, then wait for DCEN to complete
- *------------------------------------------------------------------*/
- mtsdram (mem_cfg0, 0x86000000); /* DCEN=1, PMUD=1, 64-bit */
- for (;;) {
- mfsdram (mem_mcsts, reg);
- if (reg & 0x80000000)
- break;
- }
-
- return (128 * 1024 * 1024); /* 128 MB */
-}
-#endif /* !defined(CONFIG_SPD_EEPROM) */
-
-
-/*************************************************************************
- * 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 ebony board is always configured as the host & requires the
- * PCI arbiter to be enabled.
- *--------------------------------------------------------------------------*/
- strap = mfdcr(cpc0_strp1);
- if( (strap & 0x00100000) == 0 ){
- printf("PCI: CPC0_STRP1[PAE] not set.\n");
- 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 ebony board is always configured as host. */
- return(1);
-}
-#endif /* defined(CONFIG_PCI) */