+++ /dev/null
-/*
- * (C) Copyright 2000
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- * Keith Outwater, keith_outwater@mvis.com
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <virtex2.h>
-#include <common.h>
-#include <mpc8xx.h>
-#include <asm/8xx_immap.h>
-#include "beeper.h"
-#include "fpga.h"
-#include "ioport.h"
-
-DECLARE_GLOBAL_DATA_PTR;
-
-#ifdef CONFIG_STATUS_LED
-#include <status_led.h>
-#endif
-
-#if defined(CONFIG_CMD_MII) && defined(CONFIG_MII)
-#include <net.h>
-#endif
-
-#if 0
-#define GEN860T_DEBUG
-#endif
-
-#ifdef GEN860T_DEBUG
-#define PRINTF(fmt,args...) printf (fmt ,##args)
-#else
-#define PRINTF(fmt,args...)
-#endif
-
-/*
- * The following UPM init tables were generated automatically by
- * Motorola's MCUINIT program. See the README file for UPM to
- * SDRAM pin assignments if you want to type this data into
- * MCUINIT in order to reverse engineer the waveforms.
- */
-
-/*
- * UPM initialization tables for MICRON MT48LC16M16A2TG SDRAM devices
- * (UPMA) and Virtex FPGA SelectMap interface (UPMB).
- * NOTE that unused areas of the table are used to hold NOP, precharge
- * and mode register set sequences.
- *
- */
-#define UPMA_NOP_ADDR 0x5
-#define UPMA_PRECHARGE_ADDR 0x6
-#define UPMA_MRS_ADDR 0x12
-
-#define UPM_SINGLE_READ_ADDR 0x00
-#define UPM_BURST_READ_ADDR 0x08
-#define UPM_SINGLE_WRITE_ADDR 0x18
-#define UPM_BURST_WRITE_ADDR 0x20
-#define UPM_REFRESH_ADDR 0x30
-
-const uint sdram_upm_table[] = {
- /* single read (offset 0x00 in upm ram) */
- 0x0e0fdc04, 0x01adfc04, 0x0fbffc00, 0x1fff5c05,
- 0xffffffff, 0x0fffffcd, 0x0fff0fce, 0xefcfffff,
- /* burst read (offset 0x08 in upm ram) */
- 0x0f0fdc04, 0x00fdfc04, 0xf0fffc00, 0xf0fffc00,
- 0xf1fffc00, 0xfffffc00, 0xfffffc05, 0xffffffff,
- 0xffffffff, 0xffffffff, 0x0ffffff4, 0x1f3d5ff4,
- 0xfffffff4, 0xfffffff5, 0xffffffff, 0xffffffff,
- /* single write (offset 0x18 in upm ram) */
- 0x0f0fdc04, 0x00ad3c00, 0x1fff5c05, 0xffffffff,
- 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
- /* burst write (offset 0x20 in upm ram) */
- 0x0f0fdc00, 0x10fd7c00, 0xf0fffc00, 0xf0fffc00,
- 0xf1fffc04, 0xfffffc05, 0xffffffff, 0xffffffff,
- 0xffffffff, 0xffffffff, 0xffffffff, 0xfffff7ff,
- 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
- /* refresh (offset 0x30 in upm ram) */
- 0x1ffddc84, 0xfffffc04, 0xfffffc04, 0xfffffc84,
- 0xfffffc05, 0xffffffff, 0xffffffff, 0xffffffff,
- 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
- /* exception (offset 0x3C in upm ram) */
-};
-
-const uint selectmap_upm_table[] = {
- /* single read (offset 0x00 in upm ram) */
- 0x88fffc06, 0x00fff404, 0x00fffc04, 0x33fffc00,
- 0xfffffc05, 0xffffffff, 0xffffffff, 0xffffffff,
- /* burst read (offset 0x08 in upm ram) */
- 0xfffffc04, 0xfffffc05, 0xffffffff, 0xffffffff,
- 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
- 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
- 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
- /* single write (offset 0x18 in upm ram) */
- 0x88fffc04, 0x00fff400, 0x77fffc05, 0xffffffff,
- 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
- /* burst write (offset 0x20 in upm ram) */
- 0xfffffc04, 0xfffffc05, 0xffffffff, 0xffffffff,
- 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
- 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
- 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
- /* refresh (offset 0x30 in upm ram) */
- 0xfffffc04, 0xfffffc05, 0xffffffff, 0xffffffff,
- 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
- 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
- /* exception (offset 0x3C in upm ram) */
- 0xfffffc05, 0xffffffff, 0xffffffff, 0xffffffff
-};
-
-/*
- * Check board identity. Always successful (gives information only)
- */
-int checkboard (void)
-{
- char *s;
- char buf[64];
- int i;
-
- i = getenv_f("board_id", buf, sizeof (buf));
- s = (i > 0) ? buf : NULL;
-
- if (s) {
- printf ("%s ", s);
- } else {
- printf ("<unknown> ");
- }
-
- i = getenv_f("serial#", buf, sizeof (buf));
- s = (i > 0) ? buf : NULL;
-
- if (s) {
- printf ("S/N %s\n", s);
- } else {
- printf ("S/N <unknown>\n");
- }
-
- printf ("CPU at %s MHz, ", strmhz (buf, gd->cpu_clk));
- printf ("local bus at %s MHz\n", strmhz (buf, gd->bus_clk));
- return (0);
-}
-
-/*
- * Initialize SDRAM
- */
-phys_size_t initdram (int board_type)
-{
- volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
- volatile memctl8xx_t *memctl = &immr->im_memctl;
-
- upmconfig (UPMA,
- (uint *) sdram_upm_table,
- sizeof (sdram_upm_table) / sizeof (uint)
- );
-
- /*
- * Setup MAMR register
- */
- memctl->memc_mptpr = CONFIG_SYS_MPTPR_1BK_8K;
- memctl->memc_mamr = CONFIG_SYS_MAMR_8COL & (~(MAMR_PTAE)); /* no refresh yet */
-
- /*
- * Map CS1* to SDRAM bank
- */
- memctl->memc_or1 = CONFIG_SYS_OR1;
- memctl->memc_br1 = CONFIG_SYS_BR1;
-
- /*
- * Perform SDRAM initialization sequence:
- * 1. Apply at least one NOP command
- * 2. 100 uS delay (JEDEC standard says 200 uS)
- * 3. Issue 4 precharge commands
- * 4. Perform two refresh cycles
- * 5. Program mode register
- *
- * Program SDRAM for standard operation, sequential burst, burst length
- * of 4, CAS latency of 2.
- */
- memctl->memc_mar = 0x00000000;
- memctl->memc_mcr = MCR_UPM_A | MCR_OP_RUN | MCR_MB_CS1 |
- MCR_MLCF (0) | UPMA_NOP_ADDR;
- udelay (200);
- memctl->memc_mar = 0x00000000;
- memctl->memc_mcr = MCR_UPM_A | MCR_OP_RUN | MCR_MB_CS1 |
- MCR_MLCF (4) | UPMA_PRECHARGE_ADDR;
-
- memctl->memc_mar = 0x00000000;
- memctl->memc_mcr = MCR_UPM_A | MCR_OP_RUN | MCR_MB_CS1 |
- MCR_MLCF (2) | UPM_REFRESH_ADDR;
-
- memctl->memc_mar = 0x00000088;
- memctl->memc_mcr = MCR_UPM_A | MCR_OP_RUN | MCR_MB_CS1 |
- MCR_MLCF (1) | UPMA_MRS_ADDR;
-
- memctl->memc_mar = 0x00000000;
- memctl->memc_mcr = MCR_UPM_A | MCR_OP_RUN | MCR_MB_CS1 |
- MCR_MLCF (0) | UPMA_NOP_ADDR;
- /*
- * Enable refresh
- */
- memctl->memc_mamr |= MAMR_PTAE;
-
- return (SDRAM_SIZE);
-}
-
-/*
- * Disk On Chip (DOC) Millenium initialization.
- * The DOC lives in the CS2* space
- */
-#if defined(CONFIG_CMD_DOC)
-void doc_init (void)
-{
- printf ("Probing at 0x%.8x: ", DOC_BASE);
- doc_probe (DOC_BASE);
-}
-#endif
-
-/*
- * Miscellaneous intialization
- */
-int misc_init_r (void)
-{
- volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
- volatile memctl8xx_t *memctl = &immr->im_memctl;
-
- /*
- * Set up UPMB to handle the Virtex FPGA SelectMap interface
- */
- upmconfig (UPMB, (uint *) selectmap_upm_table,
- sizeof (selectmap_upm_table) / sizeof (uint));
-
- memctl->memc_mbmr = 0x0;
-
- config_mpc8xx_ioports (immr);
-
-#if defined(CONFIG_CMD_MII)
- mii_init ();
-#endif
-
-#if defined(CONFIG_FPGA)
- gen860t_init_fpga ();
-#endif
- return 0;
-}
-
-/*
- * Final init hook before entering command loop.
- */
-int last_stage_init (void)
-{
-#if !defined(CONFIG_SC)
- char buf[256];
- int i;
-
- /*
- * Turn the beeper volume all the way down in case this is a warm boot.
- */
- set_beeper_volume (-64);
- init_beeper ();
-
- /*
- * Read the environment to see what to do with the beeper
- */
- i = getenv_f("beeper", buf, sizeof (buf));
- if (i > 0) {
- do_beeper (buf);
- }
-#endif
- return 0;
-}
-
-/*
- * Stub to make POST code happy. Can't self-poweroff, so just hang.
- */
-void board_poweroff (void)
-{
- puts ("### Please power off the board ###\n");
- while (1);
-}
projects / people / ms / u-boot.git / blobdiff