+++ /dev/null
-/*
- * (C) Copyright 2003-2006
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * (C) Copyright 2004
- * Mark Jonas, Freescale Semiconductor, mark.jonas@motorola.com.
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <common.h>
-#include <mpc5xxx.h>
-#include <pci.h>
-#include <asm/processor.h>
-
-/* Two MT48LC8M32B2 for 32 MB */
-/* #include "mt48lc8m32b2-6-7.h" */
-
-/* One MT48LC16M32S2 for 64 MB */
-/* #include "mt48lc16m32s2-75.h" */
-#if defined (CONFIG_MCC200_SDRAM)
-#include "mt48lc16m16a2-75.h"
-#else
-#include "mt46v16m16-75.h"
-#endif
-
-DECLARE_GLOBAL_DATA_PTR;
-
-extern flash_info_t flash_info[]; /* FLASH chips info */
-
-extern int do_auto_update(void);
-ulong flash_get_size (ulong base, int banknum);
-
-#ifndef CONFIG_SYS_RAMBOOT
-static void sdram_start (int hi_addr)
-{
- long hi_addr_bit = hi_addr ? 0x01000000 : 0;
-
- /* unlock mode register */
- *(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000000 | hi_addr_bit;
- __asm__ volatile ("sync");
-
- /* precharge all banks */
- *(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000002 | hi_addr_bit;
- __asm__ volatile ("sync");
-
-#if SDRAM_DDR
- /* set mode register: extended mode */
- *(vu_long *)MPC5XXX_SDRAM_MODE = SDRAM_EMODE;
- __asm__ volatile ("sync");
-
- /* set mode register: reset DLL */
- *(vu_long *)MPC5XXX_SDRAM_MODE = SDRAM_MODE | 0x04000000;
- __asm__ volatile ("sync");
-#endif
-
- /* precharge all banks */
- *(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000002 | hi_addr_bit;
- __asm__ volatile ("sync");
-
- /* auto refresh */
- *(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000004 | hi_addr_bit;
- __asm__ volatile ("sync");
-
- /* set mode register */
- *(vu_long *)MPC5XXX_SDRAM_MODE = SDRAM_MODE;
- __asm__ volatile ("sync");
-
- /* normal operation */
- *(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | hi_addr_bit;
- __asm__ volatile ("sync");
-
- udelay(10);
-}
-#endif
-
-/*
- * ATTENTION: Although partially referenced initdram does NOT make real use
- * use of CONFIG_SYS_SDRAM_BASE. The code does not work if CONFIG_SYS_SDRAM_BASE
- * is something else than 0x00000000.
- */
-
-phys_size_t initdram (int board_type)
-{
- ulong dramsize = 0;
- ulong dramsize2 = 0;
- uint svr, pvr;
-#ifndef CONFIG_SYS_RAMBOOT
- ulong test1, test2;
-
- /* setup SDRAM chip selects */
- *(vu_long *)MPC5XXX_SDRAM_CS0CFG = 0x0000001e;/* 2G at 0x0 */
- *(vu_long *)MPC5XXX_SDRAM_CS1CFG = 0x80000000;/* disabled */
- __asm__ volatile ("sync");
-
- /* setup config registers */
- *(vu_long *)MPC5XXX_SDRAM_CONFIG1 = SDRAM_CONFIG1;
- *(vu_long *)MPC5XXX_SDRAM_CONFIG2 = SDRAM_CONFIG2;
- __asm__ volatile ("sync");
-
-#if SDRAM_DDR
- /* set tap delay */
- *(vu_long *)MPC5XXX_CDM_PORCFG = SDRAM_TAPDELAY;
- __asm__ volatile ("sync");
-#endif
-
- /* find RAM size using SDRAM CS0 only */
- sdram_start(0);
- test1 = get_ram_size((long *)CONFIG_SYS_SDRAM_BASE, 0x80000000);
- sdram_start(1);
- test2 = get_ram_size((long *)CONFIG_SYS_SDRAM_BASE, 0x80000000);
- if (test1 > test2) {
- sdram_start(0);
- dramsize = test1;
- } else {
- dramsize = test2;
- }
-
- /* memory smaller than 1MB is impossible */
- if (dramsize < (1 << 20)) {
- dramsize = 0;
- }
-
- /* set SDRAM CS0 size according to the amount of RAM found */
- if (dramsize > 0) {
- *(vu_long *)MPC5XXX_SDRAM_CS0CFG = 0x13 + __builtin_ffs(dramsize >> 20) - 1;
- } else {
- *(vu_long *)MPC5XXX_SDRAM_CS0CFG = 0; /* disabled */
- }
-
- /* let SDRAM CS1 start right after CS0 */
- *(vu_long *)MPC5XXX_SDRAM_CS1CFG = dramsize + 0x0000001e;/* 2G */
-
- /* find RAM size using SDRAM CS1 only */
- if (!dramsize)
- sdram_start(0);
- test2 = test1 = get_ram_size((long *)(CONFIG_SYS_SDRAM_BASE + dramsize), 0x80000000);
- if (!dramsize) {
- sdram_start(1);
- test2 = get_ram_size((long *)(CONFIG_SYS_SDRAM_BASE + dramsize), 0x80000000);
- }
- if (test1 > test2) {
- sdram_start(0);
- dramsize2 = test1;
- } else {
- dramsize2 = test2;
- }
-
- /* memory smaller than 1MB is impossible */
- if (dramsize2 < (1 << 20)) {
- dramsize2 = 0;
- }
-
- /* set SDRAM CS1 size according to the amount of RAM found */
- if (dramsize2 > 0) {
- *(vu_long *)MPC5XXX_SDRAM_CS1CFG = dramsize
- | (0x13 + __builtin_ffs(dramsize2 >> 20) - 1);
- } else {
- *(vu_long *)MPC5XXX_SDRAM_CS1CFG = dramsize; /* disabled */
- }
-
-#else /* CONFIG_SYS_RAMBOOT */
-
- /* retrieve size of memory connected to SDRAM CS0 */
- dramsize = *(vu_long *)MPC5XXX_SDRAM_CS0CFG & 0xFF;
- if (dramsize >= 0x13) {
- dramsize = (1 << (dramsize - 0x13)) << 20;
- } else {
- dramsize = 0;
- }
-
- /* retrieve size of memory connected to SDRAM CS1 */
- dramsize2 = *(vu_long *)MPC5XXX_SDRAM_CS1CFG & 0xFF;
- if (dramsize2 >= 0x13) {
- dramsize2 = (1 << (dramsize2 - 0x13)) << 20;
- } else {
- dramsize2 = 0;
- }
-
-#endif /* CONFIG_SYS_RAMBOOT */
-
- /*
- * On MPC5200B we need to set the special configuration delay in the
- * DDR controller. Please refer to Freescale's AN3221 "MPC5200B SDRAM
- * Initialization and Configuration", 3.3.1 SDelay--MBAR + 0x0190:
- *
- * "The SDelay should be written to a value of 0x00000004. It is
- * required to account for changes caused by normal wafer processing
- * parameters."
- */
- svr = get_svr();
- pvr = get_pvr();
- if ((SVR_MJREV(svr) >= 2) && (PVR_MAJ(pvr) == 1) && (PVR_MIN(pvr) == 4)) {
- *(vu_long *)MPC5XXX_SDRAM_SDELAY = 0x04;
- __asm__ volatile ("sync");
- }
-
- return dramsize + dramsize2;
-}
-
-int checkboard (void)
-{
-#if defined(CONFIG_PRS200)
- puts ("Board: PRS200\n");
-#else
- puts ("Board: MCC200\n");
-#endif
- return 0;
-}
-
-int misc_init_r (void)
-{
- ulong flash_sup_end, snum;
-
- /*
- * Adjust flash start and offset to detected values
- */
- gd->bd->bi_flashstart = 0 - gd->bd->bi_flashsize;
- gd->bd->bi_flashoffset = 0;
-
- /*
- * Check if boot FLASH isn't max size
- */
- if (gd->bd->bi_flashsize < (0 - CONFIG_SYS_FLASH_BASE)) {
- /* adjust mapping */
- *(vu_long *)MPC5XXX_BOOTCS_START = *(vu_long *)MPC5XXX_CS0_START =
- START_REG(gd->bd->bi_flashstart);
- *(vu_long *)MPC5XXX_BOOTCS_STOP = *(vu_long *)MPC5XXX_CS0_STOP =
- STOP_REG(gd->bd->bi_flashstart, gd->bd->bi_flashsize);
-
- /*
- * Re-check to get correct base address
- */
- flash_get_size(gd->bd->bi_flashstart, CONFIG_SYS_MAX_FLASH_BANKS - 1);
-
- /*
- * Re-do flash protection upon new addresses
- */
- flash_protect (FLAG_PROTECT_CLEAR,
- gd->bd->bi_flashstart, 0xffffffff,
- &flash_info[CONFIG_SYS_MAX_FLASH_BANKS - 1]);
-
- /* Monitor protection ON by default */
- flash_protect (FLAG_PROTECT_SET,
- CONFIG_SYS_MONITOR_BASE, CONFIG_SYS_MONITOR_BASE + monitor_flash_len - 1,
- &flash_info[CONFIG_SYS_MAX_FLASH_BANKS - 1]);
-
- /* Environment protection ON by default */
- flash_protect (FLAG_PROTECT_SET,
- CONFIG_ENV_ADDR,
- CONFIG_ENV_ADDR + CONFIG_ENV_SECT_SIZE - 1,
- &flash_info[CONFIG_SYS_MAX_FLASH_BANKS - 1]);
-
- /* Redundant environment protection ON by default */
- flash_protect (FLAG_PROTECT_SET,
- CONFIG_ENV_ADDR_REDUND,
- CONFIG_ENV_ADDR_REDUND + CONFIG_ENV_SECT_SIZE - 1,
- &flash_info[CONFIG_SYS_MAX_FLASH_BANKS - 1]);
- }
-
- if (gd->bd->bi_flashsize > (32 << 20)) {
- /* Unprotect the upper bank of the Flash */
- *(volatile int*)MPC5XXX_CS0_CFG |= (1 << 6);
- flash_protect (FLAG_PROTECT_CLEAR,
- flash_info[0].start[0] + flash_info[0].size / 2,
- (flash_info[0].start[0] - 1) + flash_info[0].size,
- &flash_info[0]);
- *(volatile int*)MPC5XXX_CS0_CFG &= ~(1 << 6);
- printf ("Warning: Only 32 of 64 MB of Flash are accessible from U-Boot\n");
- flash_info[0].size = 32 << 20;
- for (snum = 0, flash_sup_end = gd->bd->bi_flashstart + (32<<20);
- flash_info[0].start[snum] < flash_sup_end;
- snum++);
- flash_info[0].sector_count = snum;
- }
-
-#ifdef CONFIG_AUTO_UPDATE
- do_auto_update();
-#endif
- return (0);
-}
-
-#ifdef CONFIG_PCI
-static struct pci_controller hose;
-
-extern void pci_mpc5xxx_init(struct pci_controller *);
-
-void pci_init_board(void)
-{
- pci_mpc5xxx_init(&hose);
-}
-#endif
-
-#if defined(CONFIG_CMD_IDE) && defined(CONFIG_IDE_RESET)
-
-void init_ide_reset (void)
-{
- debug ("init_ide_reset\n");
-
-}
-
-void ide_set_reset (int idereset)
-{
- debug ("ide_reset(%d)\n", idereset);
-
-}
-#endif
-
-#if defined(CONFIG_CMD_DOC)
-void doc_init (void)
-{
- doc_probe (CONFIG_SYS_DOC_BASE);
-}
-#endif
projects / people / ms / u-boot.git / blobdiff