* (C) Copyright 2004
* Mark Jonas, Freescale Semiconductor, mark.jonas@motorola.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
+ * 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"
#include "mt48lc16m16a2-75.h"
# endif
#endif
-#ifndef CFG_RAMBOOT
+
+#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;
/*
* ATTENTION: Although partially referenced initdram does NOT make real use
- * use of CFG_SDRAM_BASE. The code does not work if CFG_SDRAM_BASE
+ * use of CONFIG_SYS_SDRAM_BASE. The code does not work if CONFIG_SYS_SDRAM_BASE
* is something else than 0x00000000.
*/
-#if defined(CONFIG_MPC5200)
-long int initdram (int board_type)
+phys_size_t initdram (int board_type)
{
ulong dramsize = 0;
ulong dramsize2 = 0;
uint svr, pvr;
-#ifndef CFG_RAMBOOT
+#ifndef CONFIG_SYS_RAMBOOT
ulong test1, test2;
/* setup SDRAM chip selects */
/* find RAM size using SDRAM CS0 only */
sdram_start(0);
- test1 = get_ram_size((long *)CFG_SDRAM_BASE, 0x80000000);
+ test1 = get_ram_size((long *)CONFIG_SYS_SDRAM_BASE, 0x80000000);
sdram_start(1);
- test2 = get_ram_size((long *)CFG_SDRAM_BASE, 0x80000000);
+ test2 = get_ram_size((long *)CONFIG_SYS_SDRAM_BASE, 0x80000000);
if (test1 > test2) {
sdram_start(0);
dramsize = test1;
/* find RAM size using SDRAM CS1 only */
if (!dramsize)
sdram_start(0);
- test2 = test1 = get_ram_size((long *)(CFG_SDRAM_BASE + dramsize), 0x80000000);
+ test2 = test1 = get_ram_size((long *)(CONFIG_SYS_SDRAM_BASE + dramsize), 0x80000000);
if (!dramsize) {
sdram_start(1);
- test2 = get_ram_size((long *)(CFG_SDRAM_BASE + dramsize), 0x80000000);
+ test2 = get_ram_size((long *)(CONFIG_SYS_SDRAM_BASE + dramsize), 0x80000000);
}
if (test1 > test2) {
sdram_start(0);
*(vu_long *)MPC5XXX_SDRAM_CS1CFG = dramsize; /* disabled */
}
-#else /* CFG_RAMBOOT */
+#else /* CONFIG_SYS_RAMBOOT */
/* retrieve size of memory connected to SDRAM CS0 */
dramsize = *(vu_long *)MPC5XXX_SDRAM_CS0CFG & 0xFF;
dramsize2 = 0;
}
-#endif /* CFG_RAMBOOT */
+#endif /* CONFIG_SYS_RAMBOOT */
/*
* On MPC5200B we need to set the special configuration delay in the
__asm__ volatile ("sync");
}
- return dramsize + dramsize2;
-}
-
-#elif defined(CONFIG_MGT5100)
+ lite5200b_wakeup();
-long int initdram (int board_type)
-{
- ulong dramsize = 0;
-#ifndef CFG_RAMBOOT
- ulong test1, test2;
-
- /* setup and enable SDRAM chip selects */
- *(vu_long *)MPC5XXX_SDRAM_START = 0x00000000;
- *(vu_long *)MPC5XXX_SDRAM_STOP = 0x0000ffff;/* 2G */
- *(vu_long *)MPC5XXX_ADDECR |= (1 << 22); /* Enable SDRAM */
- __asm__ volatile ("sync");
-
- /* setup config registers */
- *(vu_long *)MPC5XXX_SDRAM_CONFIG1 = SDRAM_CONFIG1;
- *(vu_long *)MPC5XXX_SDRAM_CONFIG2 = SDRAM_CONFIG2;
-
- /* address select register */
- *(vu_long *)MPC5XXX_SDRAM_XLBSEL = SDRAM_ADDRSEL;
- __asm__ volatile ("sync");
-
- /* find RAM size */
- sdram_start(0);
- test1 = get_ram_size((long *)CFG_SDRAM_BASE, 0x80000000);
- sdram_start(1);
- test2 = get_ram_size((long *)CFG_SDRAM_BASE, 0x80000000);
- if (test1 > test2) {
- sdram_start(0);
- dramsize = test1;
- } else {
- dramsize = test2;
- }
-
- /* set SDRAM end address according to size */
- *(vu_long *)MPC5XXX_SDRAM_STOP = ((dramsize - 1) >> 15);
-
-#else /* CFG_RAMBOOT */
-
- /* Retrieve amount of SDRAM available */
- dramsize = ((*(vu_long *)MPC5XXX_SDRAM_STOP + 1) << 15);
-
-#endif /* CFG_RAMBOOT */
-
- return dramsize;
+ return dramsize + dramsize2;
}
-#else
-#error Neither CONFIG_MPC5200 or CONFIG_MGT5100 defined
-#endif
-
int checkboard (void)
{
#if defined (CONFIG_LITE5200B)
puts ("Board: Freescale Lite5200B\n");
-#elif defined(CONFIG_MPC5200)
+#else
puts ("Board: Motorola MPC5200 (IceCube)\n");
-#elif defined(CONFIG_MGT5100)
- puts ("Board: Motorola MGT5100 (IceCube)\n");
#endif
return 0;
}
* Note that CS_BOOT cannot be cleared when
* executing in flash.
*/
-#if defined(CONFIG_MGT5100)
- *(vu_long *)MPC5XXX_ADDECR &= ~(1 << 25); /* disable CS_BOOT */
- *(vu_long *)MPC5XXX_ADDECR |= (1 << 16); /* enable CS0 */
-#endif
*(vu_long *)MPC5XXX_BOOTCS_CFG &= ~0x1; /* clear RO */
}
{
if (size == 0x800000) { /* adjust mapping */
*(vu_long *)MPC5XXX_BOOTCS_START = *(vu_long *)MPC5XXX_CS0_START =
- START_REG(CFG_BOOTCS_START | size);
+ START_REG(CONFIG_SYS_BOOTCS_START | size);
*(vu_long *)MPC5XXX_BOOTCS_STOP = *(vu_long *)MPC5XXX_CS0_STOP =
- STOP_REG(CFG_BOOTCS_START | size, size);
+ STOP_REG(CONFIG_SYS_BOOTCS_START | size, size);
}
}
}
#endif
-#if defined (CFG_CMD_IDE) && defined (CONFIG_IDE_RESET)
+#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 */
+ /* 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;
}
}
-#endif /* defined (CFG_CMD_IDE) && defined (CONFIG_IDE_RESET) */
+#endif
+
+#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
+void
+ft_board_setup(void *blob, bd_t *bd)
+{
+ ft_cpu_setup(blob, bd);
+}
+#endif
+
+int board_eth_init(bd_t *bis)
+{
+ cpu_eth_init(bis); /* Built in FEC comes first */
+ return pci_eth_init(bis);
+}
projects / karo-tx-uboot.git / blobdiff