summaryrefslogtreecommitdiffstats
path: root/board/icecube/icecube.c
diff options
context:
space:
mode:
Diffstat (limited to 'board/icecube/icecube.c')
-rw-r--r--board/icecube/icecube.c326
1 files changed, 0 insertions, 326 deletions
diff --git a/board/icecube/icecube.c b/board/icecube/icecube.c
deleted file mode 100644
index f0af24ad9b..0000000000
--- a/board/icecube/icecube.c
+++ /dev/null
@@ -1,326 +0,0 @@
-/*
- * (C) Copyright 2003
- * 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>
-#include <libfdt.h>
-#include <netdev.h>
-
-#if defined(CONFIG_LITE5200B)
-#include "mt46v32m16.h"
-#else
-# if defined(CONFIG_MPC5200_DDR)
-# include "mt46v16m16-75.h"
-# else
-#include "mt48lc16m16a2-75.h"
-# endif
-#endif
-
-#ifdef CONFIG_LITE5200B_PM
-/* u-boot part of low-power mode implementation */
-#define SAVED_ADDR (*(void **)0x00000000)
-#define PSC2_4 0x02
-
-void lite5200b_wakeup(void)
-{
- unsigned char wakeup_pin;
- void (*linux_wakeup)(void);
-
- /* check PSC2_4, if it's down "QT" is signaling we have a wakeup
- * from low power mode */
- *(vu_char *)MPC5XXX_WU_GPIO_ENABLE = PSC2_4;
- __asm__ volatile ("sync");
-
- wakeup_pin = *(vu_char *)MPC5XXX_WU_GPIO_DATA_I;
- if (wakeup_pin & PSC2_4)
- return;
-
- /* acknowledge to "QT"
- * by holding pin at 1 for 10 uS */
- *(vu_char *)MPC5XXX_WU_GPIO_DIR = PSC2_4;
- __asm__ volatile ("sync");
- *(vu_char *)MPC5XXX_WU_GPIO_DATA_O = PSC2_4;
- __asm__ volatile ("sync");
- udelay(10);
-
- /* put ram out of self-refresh */
- *(vu_long *)MPC5XXX_SDRAM_CTRL |= 0x80000000; /* mode_en */
- __asm__ volatile ("sync");
- *(vu_long *)MPC5XXX_SDRAM_CTRL |= 0x50000000; /* cke ref_en */
- __asm__ volatile ("sync");
- *(vu_long *)MPC5XXX_SDRAM_CTRL &= ~0x80000000; /* !mode_en */
- __asm__ volatile ("sync");
- udelay(10); /* wait a bit */
-
- /* jump back to linux kernel code */
- linux_wakeup = SAVED_ADDR;
- printf("\n\nLooks like we just woke, transferring control to 0x%08lx\n",
- (unsigned long)linux_wakeup);
- linux_wakeup();
-}
-#else
-#define lite5200b_wakeup()
-#endif
-
-#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");
-}
-#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");
- }
-
- lite5200b_wakeup();
-
- return dramsize + dramsize2;
-}
-
-int checkboard (void)
-{
-#if defined (CONFIG_LITE5200B)
- puts ("Board: Freescale Lite5200B\n");
-#else
- puts ("Board: Motorola MPC5200 (IceCube)\n");
-#endif
- return 0;
-}
-
-void flash_preinit(void)
-{
- /*
- * Now, when we are in RAM, enable flash write
- * access for detection process.
- * Note that CS_BOOT cannot be cleared when
- * executing in flash.
- */
- *(vu_long *)MPC5XXX_BOOTCS_CFG &= ~0x1; /* clear RO */
-}
-
-void flash_afterinit(ulong size)
-{
- if (size == 0x800000) { /* adjust mapping */
- *(vu_long *)MPC5XXX_BOOTCS_START = *(vu_long *)MPC5XXX_CS0_START =
- START_REG(CONFIG_SYS_BOOTCS_START | size);
- *(vu_long *)MPC5XXX_BOOTCS_STOP = *(vu_long *)MPC5XXX_CS0_STOP =
- STOP_REG(CONFIG_SYS_BOOTCS_START | size, size);
- }
-}
-
-#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");
-
- /* Configure PSC1_4 as GPIO output for ATA reset */
- *(vu_long *) MPC5XXX_WU_GPIO_ENABLE |= GPIO_PSC1_4;
- *(vu_long *) MPC5XXX_WU_GPIO_DIR |= GPIO_PSC1_4;
- /* Deassert reset */
- *(vu_long *) MPC5XXX_WU_GPIO_DATA_O |= GPIO_PSC1_4;
-}
-
-void ide_set_reset (int idereset)
-{
- debug ("ide_reset(%d)\n", idereset);
-
- if (idereset) {
- *(vu_long *) MPC5XXX_WU_GPIO_DATA_O &= ~GPIO_PSC1_4;
- /* Make a delay. MPC5200 spec says 25 usec min */
- udelay(500000);
- } else {
- *(vu_long *) MPC5XXX_WU_GPIO_DATA_O |= GPIO_PSC1_4;
- }
-}
-#endif
-
-#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
-int ft_board_setup(void *blob, bd_t *bd)
-{
- ft_cpu_setup(blob, bd);
-
- return 0;
-}
-#endif
-
-int board_eth_init(bd_t *bis)
-{
- cpu_eth_init(bis); /* Built in FEC comes first */
- return pci_eth_init(bis);
-}
OpenPOWER on IntegriCloud