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/*
* (C) Copyright 2003
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* (C) Copyright 2004
* Mark Jonas, Freescale Semiconductor, mark.jonas@motorola.com.
*
* (C) Copyright 2005-2009
* Modified for InterControl digsyMTC MPC5200 board by
* Frank Bodammer, GCD Hard- & Software GmbH,
* frank.bodammer@gcd-solutions.de
*
* (C) Copyright 2009
* Grzegorz Bernacki, Semihalf, gjb@semihalf.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
*/
#include <common.h>
#include <mpc5xxx.h>
#include <net.h>
#include <pci.h>
#include <asm/processor.h>
#include <asm/io.h>
#include "eeprom.h"
#include "is42s16800a-7t.h"
DECLARE_GLOBAL_DATA_PTR;
extern int usb_cpu_init(void);
#ifndef CONFIG_SYS_RAMBOOT
static void sdram_start(int hi_addr)
{
long hi_addr_bit = hi_addr ? 0x01000000 : 0;
long control = SDRAM_CONTROL | hi_addr_bit;
/* unlock mode register */
out_be32((void *)MPC5XXX_SDRAM_CTRL, control | 0x80000000);
/* precharge all banks */
out_be32((void *)MPC5XXX_SDRAM_CTRL, control | 0x80000002);
/* auto refresh */
out_be32((void *)MPC5XXX_SDRAM_CTRL, control | 0x80000004);
/* set mode register */
out_be32((void *)MPC5XXX_SDRAM_MODE, SDRAM_MODE);
/* normal operation */
out_be32((void *)MPC5XXX_SDRAM_CTRL, control);
}
#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 */
out_be32((void *)MPC5XXX_SDRAM_CS0CFG, 0x0000001C); /* 512MB at 0x0 */
out_be32((void *)MPC5XXX_SDRAM_CS1CFG, 0x80000000); /* disabled */
/* setup config registers */
out_be32((void *)MPC5XXX_SDRAM_CONFIG1, SDRAM_CONFIG1);
out_be32((void *)MPC5XXX_SDRAM_CONFIG2, SDRAM_CONFIG2);
/* find RAM size using SDRAM CS0 only */
sdram_start(0);
test1 = get_ram_size((long *)CONFIG_SYS_SDRAM_BASE, 0x08000000);
sdram_start(1);
test2 = get_ram_size((long *)CONFIG_SYS_SDRAM_BASE, 0x08000000);
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) {
out_be32((void *)MPC5XXX_SDRAM_CS0CFG,
(0x13 + __builtin_ffs(dramsize >> 20) - 1));
} else {
out_be32((void *)MPC5XXX_SDRAM_CS0CFG, 0); /* disabled */
}
/* let SDRAM CS1 start right after CS0 */
out_be32((void *)MPC5XXX_SDRAM_CS1CFG, dramsize + 0x0000001C);
/* find RAM size using SDRAM CS1 only */
test1 = get_ram_size((long *)(CONFIG_SYS_SDRAM_BASE + dramsize),
0x08000000);
dramsize2 = test1;
/* 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) {
out_be32((void *)MPC5XXX_SDRAM_CS1CFG, (dramsize |
(0x13 + __builtin_ffs(dramsize2 >> 20) - 1)));
} else {
out_be32((void *)MPC5XXX_SDRAM_CS1CFG, dramsize); /* disabled */
}
#else /* CONFIG_SYS_RAMBOOT */
/* retrieve size of memory connected to SDRAM CS0 */
dramsize = in_be32((void *)MPC5XXX_SDRAM_CS0CFG) & 0xFF;
if (dramsize >= 0x13)
dramsize = (1 << (dramsize - 0x13)) << 20;
else
dramsize = 0;
/* retrieve size of memory connected to SDRAM CS1 */
dramsize2 = in_be32((void *)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))
out_be32((void *)MPC5XXX_SDRAM_SDELAY, 0x04);
return dramsize + dramsize2;
}
int checkboard(void)
{
char *s = getenv("serial#");
puts ("Board: InterControl digsyMTC");
if (s != NULL) {
puts(", ");
puts(s);
}
putc('\n');
return 0;
}
int board_early_init_r(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.
*/
/* disable CS_BOOT */
clrbits_be32((void *)MPC5XXX_ADDECR, (1 << 25));
/* enable CS1 */
setbits_be32((void *)MPC5XXX_ADDECR, (1 << 17));
/* enable CS0 */
setbits_be32((void *)MPC5XXX_ADDECR, (1 << 16));
#if defined(CONFIG_USB_OHCI_NEW) && defined(CONFIG_SYS_USB_OHCI_CPU_INIT)
/* Low level USB init, required for proper kernel operation */
usb_cpu_init();
#endif
return (0);
}
void board_get_enetaddr (uchar * enet)
{
ushort read = 0;
ushort addr_of_eth_addr = 0;
ushort len_sys = 0;
ushort len_sys_cfg = 0;
/* check identification word */
eeprom_read(EEPROM_ADDR, EEPROM_ADDR_IDENT, (uchar *)&read, 2);
if (read != EEPROM_IDENT)
return;
/* calculate offset of config area */
eeprom_read(EEPROM_ADDR, EEPROM_ADDR_LEN_SYS, (uchar *)&len_sys, 2);
eeprom_read(EEPROM_ADDR, EEPROM_ADDR_LEN_SYSCFG,
(uchar *)&len_sys_cfg, 2);
addr_of_eth_addr = (len_sys + len_sys_cfg + EEPROM_ADDR_ETHADDR) << 1;
if (addr_of_eth_addr >= EEPROM_LEN)
return;
eeprom_read(EEPROM_ADDR, addr_of_eth_addr, enet, 6);
}
int misc_init_r(void)
{
uchar enetaddr[6];
if (!eth_getenv_enetaddr("ethaddr", enetaddr)) {
board_get_enetaddr(enetaddr);
eth_setenv_enetaddr("ethaddr", enetaddr);
}
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
#ifdef CONFIG_CMD_IDE
#ifdef CONFIG_IDE_RESET
void init_ide_reset(void)
{
debug ("init_ide_reset\n");
/* set gpio output value to 1 */
setbits_be32((void *)MPC5XXX_WU_GPIO_DATA_O, (1 << 25));
/* open drain output */
setbits_be32((void *)MPC5XXX_WU_GPIO_ODE, (1 << 25));
/* direction output */
setbits_be32((void *)MPC5XXX_WU_GPIO_DIR, (1 << 25));
/* enable gpio */
setbits_be32((void *)MPC5XXX_WU_GPIO_ENABLE, (1 << 25));
}
void ide_set_reset(int idereset)
{
debug ("ide_reset(%d)\n", idereset);
/* set gpio output value to 0 */
clrbits_be32((void *)MPC5XXX_WU_GPIO_DATA_O, (1 << 25));
/* open drain output */
setbits_be32((void *)MPC5XXX_WU_GPIO_ODE, (1 << 25));
/* direction output */
setbits_be32((void *)MPC5XXX_WU_GPIO_DIR, (1 << 25));
/* enable gpio */
setbits_be32((void *)MPC5XXX_WU_GPIO_ENABLE, (1 << 25));
udelay(10000);
/* set gpio output value to 1 */
setbits_be32((void *)MPC5XXX_WU_GPIO_DATA_O, (1 << 25));
/* open drain output */
setbits_be32((void *)MPC5XXX_WU_GPIO_ODE, (1 << 25));
/* direction output */
setbits_be32((void *)MPC5XXX_WU_GPIO_DIR, (1 << 25));
/* enable gpio */
setbits_be32((void *)MPC5XXX_WU_GPIO_ENABLE, (1 << 25));
}
#endif /* CONFIG_IDE_RESET */
#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 /* defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) */
#endif /* CONFIG_CMD_IDE */
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