diff options
Diffstat (limited to 'board/amcc/ebony/ebony.c')
| -rw-r--r-- | board/amcc/ebony/ebony.c | 151 |
1 files changed, 0 insertions, 151 deletions
diff --git a/board/amcc/ebony/ebony.c b/board/amcc/ebony/ebony.c deleted file mode 100644 index eb424489ef..0000000000 --- a/board/amcc/ebony/ebony.c +++ /dev/null @@ -1,151 +0,0 @@ -/* - * Copyright (C) 2002 Scott McNutt <smcnutt@artesyncp.com> - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.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 */ - -DECLARE_GLOBAL_DATA_PTR; - -long int fixed_sdram(void); - -int board_early_init_f(void) -{ - uint reg; - unsigned char *fpga_base = (unsigned char *)CONFIG_SYS_FPGA_BASE; - unsigned char status; - - /*-------------------------------------------------------------------- - * Setup the external bus controller/chip selects - *-------------------------------------------------------------------*/ - mtdcr(EBC0_CFGADDR, EBC0_CFG); - reg = mfdcr(EBC0_CFGDATA); - mtdcr(EBC0_CFGDATA, 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) -{ - char buf[64]; - int i = getenv_f("serial#", buf, sizeof(buf)); - - printf("Board: Ebony - AMCC PPC440GP Evaluation Board"); - if (i > 0) { - puts(", serial# "); - puts(buf); - } - putc('\n'); - - return (0); -} - -phys_size_t initdram(int board_type) -{ - long dram_size = 0; - -#if defined(CONFIG_SPD_EEPROM) - dram_size = spd_sdram(); -#else - dram_size = fixed_sdram(); -#endif - return dram_size; -} - -#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(SDRAM0_UABBA, 0x00000000); /* ubba=0 (default) */ - mtsdram(SDRAM0_SLIO, 0x00000000); /* rdre=0 wrre=0 rarw=0 */ - mtsdram(SDRAM0_DEVOPT, 0x00000000); /* dll=0 ds=0 (normal) */ - mtsdram(SDRAM0_WDDCTR, 0x00000000); /* wrcp=0 dcd=0 */ - mtsdram(SDRAM0_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(SDRAM0_B0CR, 0x000a4001); /* SDBA=0x000 128MB, Mode 3, enabled */ - mtsdram(SDRAM0_TR0, 0x410a4012); /* WR=2 WD=1 CL=2.5 PA=3 CP=4 LD=2 */ - /* RA=10 RD=3 */ - mtsdram(SDRAM0_TR1, 0x8080082f); /* SS=T2 SL=STAGE 3 CD=1 CT=0x02f */ - mtsdram(SDRAM0_RTR, 0x08200000); /* Rate 15.625 ns @ 133 MHz PLB */ - mtsdram(SDRAM0_CFG1, 0x00000000); /* Self-refresh exit, disable PM */ - udelay(400); /* Delay 200 usecs (min) */ - - /*-------------------------------------------------------------------- - * Enable the controller, then wait for DCEN to complete - *------------------------------------------------------------------*/ - mtsdram(SDRAM0_CFG0, 0x86000000); /* DCEN=1, PMUD=1, 64-bit */ - for (;;) { - mfsdram(SDRAM0_MCSTS, reg); - if (reg & 0x80000000) - break; - } - - return (128 * 1024 * 1024); /* 128 MB */ -} -#endif /* !defined(CONFIG_SPD_EEPROM) */ |
