mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-14 08:57:58 +00:00
266 lines
7.4 KiB
C
266 lines
7.4 KiB
C
/*
|
|
* (C) Copyright 2008-2009
|
|
* Andreas Pfefferle, DENX Software Engineering, ap@denx.de.
|
|
*
|
|
* (C) Copyright 2009
|
|
* Detlev Zundel, DENX Software Engineering, dzu@denx.de.
|
|
*
|
|
* (C) Copyright 2004
|
|
* Mark Jonas, Freescale Semiconductor, mark.jonas@motorola.com.
|
|
*
|
|
* (C) Copyright 2004
|
|
* Martin Krause, TQ-Systems GmbH, martin.krause@tqs.de
|
|
*
|
|
* (C) Copyright 2003-2004
|
|
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
|
|
*
|
|
* 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 <asm/io.h>
|
|
#include <common.h>
|
|
#include <mpc5xxx.h>
|
|
#include <pci.h>
|
|
|
|
#if defined(CONFIG_DDR_MT46V16M16)
|
|
#include "mt46v16m16-75.h"
|
|
#elif defined(CONFIG_SDR_MT48LC16M16A2)
|
|
#include "mt48lc16m16a2-75.h"
|
|
#elif defined(CONFIG_DDR_MT46V32M16)
|
|
#include "mt46v32m16.h"
|
|
#elif defined(CONFIG_DDR_HYB25D512160BF)
|
|
#include "hyb25d512160bf.h"
|
|
#elif defined(CONFIG_DDR_K4H511638C)
|
|
#include "k4h511638c.h"
|
|
#else
|
|
#error "INKA4x0 SDRAM: invalid chip type specified!"
|
|
#endif
|
|
|
|
#ifndef CONFIG_SYS_RAMBOOT
|
|
static void sdram_start (int hi_addr)
|
|
{
|
|
volatile struct mpc5xxx_sdram *sdram =
|
|
(struct mpc5xxx_sdram *)MPC5XXX_SDRAM;
|
|
long hi_addr_bit = hi_addr ? 0x01000000 : 0;
|
|
|
|
/* unlock mode register */
|
|
out_be32(&sdram->ctrl, SDRAM_CONTROL | 0x80000000 | hi_addr_bit);
|
|
|
|
/* precharge all banks */
|
|
out_be32(&sdram->ctrl, SDRAM_CONTROL | 0x80000002 | hi_addr_bit);
|
|
|
|
#if SDRAM_DDR
|
|
/* set mode register: extended mode */
|
|
out_be32(&sdram->mode, SDRAM_EMODE);
|
|
|
|
/* set mode register: reset DLL */
|
|
out_be32(&sdram->mode, SDRAM_MODE | 0x04000000);
|
|
#endif
|
|
|
|
/* precharge all banks */
|
|
out_be32(&sdram->ctrl, SDRAM_CONTROL | 0x80000002 | hi_addr_bit);
|
|
|
|
/* auto refresh */
|
|
out_be32(&sdram->ctrl, SDRAM_CONTROL | 0x80000004 | hi_addr_bit);
|
|
|
|
/* set mode register */
|
|
out_be32(&sdram->mode, SDRAM_MODE);
|
|
|
|
/* normal operation */
|
|
out_be32(&sdram->ctrl, SDRAM_CONTROL | hi_addr_bit);
|
|
}
|
|
#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)
|
|
{
|
|
volatile struct mpc5xxx_mmap_ctl *mm =
|
|
(struct mpc5xxx_mmap_ctl *) CONFIG_SYS_MBAR;
|
|
volatile struct mpc5xxx_cdm *cdm =
|
|
(struct mpc5xxx_cdm *) MPC5XXX_CDM;
|
|
volatile struct mpc5xxx_sdram *sdram =
|
|
(struct mpc5xxx_sdram *) MPC5XXX_SDRAM;
|
|
ulong dramsize = 0;
|
|
#ifndef CONFIG_SYS_RAMBOOT
|
|
long test1, test2;
|
|
|
|
/* setup SDRAM chip selects */
|
|
out_be32(&mm->sdram0, 0x0000001c); /* 512MB at 0x0 */
|
|
out_be32(&mm->sdram1, 0x40000000); /* disabled */
|
|
|
|
/* setup config registers */
|
|
out_be32(&sdram->config1, SDRAM_CONFIG1);
|
|
out_be32(&sdram->config2, SDRAM_CONFIG2);
|
|
|
|
#if SDRAM_DDR
|
|
/* set tap delay */
|
|
out_be32(&cdm->porcfg, SDRAM_TAPDELAY);
|
|
#endif
|
|
|
|
/* find RAM size using SDRAM CS0 only */
|
|
sdram_start(0);
|
|
test1 = get_ram_size((long *)CONFIG_SYS_SDRAM_BASE, 0x20000000);
|
|
sdram_start(1);
|
|
test2 = get_ram_size((long *)CONFIG_SYS_SDRAM_BASE, 0x20000000);
|
|
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(&mm->sdram0, 0x13 +
|
|
__builtin_ffs(dramsize >> 20) - 1);
|
|
} else {
|
|
out_be32(&mm->sdram0, 0); /* disabled */
|
|
}
|
|
|
|
out_be32(&mm->sdram1, dramsize); /* disabled */
|
|
#else /* CONFIG_SYS_RAMBOOT */
|
|
|
|
/* retrieve size of memory connected to SDRAM CS0 */
|
|
dramsize = in_be32(&mm->sdram0) & 0xFF;
|
|
if (dramsize >= 0x13) {
|
|
dramsize = (1 << (dramsize - 0x13)) << 20;
|
|
} else {
|
|
dramsize = 0;
|
|
}
|
|
#endif /* CONFIG_SYS_RAMBOOT */
|
|
|
|
return dramsize;
|
|
}
|
|
|
|
int checkboard (void)
|
|
{
|
|
puts ("Board: INKA 4X0\n");
|
|
return 0;
|
|
}
|
|
|
|
void flash_preinit(void)
|
|
{
|
|
volatile struct mpc5xxx_lpb *lpb = (struct mpc5xxx_lpb *)MPC5XXX_LPB;
|
|
|
|
/*
|
|
* Now, when we are in RAM, enable flash write
|
|
* access for detection process.
|
|
* Note that CS_BOOT (CS0) cannot be cleared when
|
|
* executing in flash.
|
|
*/
|
|
clrbits_be32(&lpb->cs0_cfg, 0x1); /* clear RO */
|
|
}
|
|
|
|
int misc_init_f (void)
|
|
{
|
|
volatile struct mpc5xxx_gpio *gpio =
|
|
(struct mpc5xxx_gpio *) MPC5XXX_GPIO;
|
|
volatile struct mpc5xxx_wu_gpio *wu_gpio =
|
|
(struct mpc5xxx_wu_gpio *)MPC5XXX_WU_GPIO;
|
|
volatile struct mpc5xxx_gpt *gpt;
|
|
char tmp[10];
|
|
int i, br;
|
|
|
|
i = getenv_r("brightness", tmp, sizeof(tmp));
|
|
br = (i > 0)
|
|
? (int) simple_strtoul (tmp, NULL, 10)
|
|
: CONFIG_SYS_BRIGHTNESS;
|
|
if (br > 255)
|
|
br = 255;
|
|
|
|
/* Initialize GPIO output pins.
|
|
*/
|
|
/* Configure GPT as GPIO output (and set them as they control low-active LEDs */
|
|
for (i = 0; i <= 5; i++) {
|
|
gpt = (struct mpc5xxx_gpt *)(MPC5XXX_GPT + (i * 0x10));
|
|
out_be32(&gpt->emsr, 0x34);
|
|
}
|
|
|
|
/* Configure GPT7 as PWM timer, 1kHz, no ints. */
|
|
gpt = (struct mpc5xxx_gpt *)(MPC5XXX_GPT + (7 * 0x10));
|
|
out_be32(&gpt->emsr, 0); /* Disable */
|
|
out_be32(&gpt->cir, 0x020000fe);
|
|
out_be32(&gpt->pwmcr, (br << 16));
|
|
out_be32(&gpt->emsr, 0x3); /* Enable PWM mode and start */
|
|
|
|
/* Configure PSC3_6,7 as GPIO output */
|
|
setbits_be32(&gpio->simple_gpioe, MPC5XXX_GPIO_SIMPLE_PSC3_6 |
|
|
MPC5XXX_GPIO_SIMPLE_PSC3_7);
|
|
setbits_be32(&gpio->simple_ddr, MPC5XXX_GPIO_SIMPLE_PSC3_6 |
|
|
MPC5XXX_GPIO_SIMPLE_PSC3_7);
|
|
|
|
/* Configure PSC3_9 and GPIO_WKUP6,7 as GPIO output */
|
|
setbits_8(&wu_gpio->enable, MPC5XXX_GPIO_WKUP_6 |
|
|
MPC5XXX_GPIO_WKUP_7 |
|
|
MPC5XXX_GPIO_WKUP_PSC3_9);
|
|
setbits_8(&wu_gpio->ddr, MPC5XXX_GPIO_WKUP_6 |
|
|
MPC5XXX_GPIO_WKUP_7 |
|
|
MPC5XXX_GPIO_WKUP_PSC3_9);
|
|
|
|
/* Set LR mirror bit because it is low-active */
|
|
setbits_8(&wu_gpio->dvo, MPC5XXX_GPIO_WKUP_7);
|
|
|
|
/* Reset Coral-P graphics controller */
|
|
setbits_8(&wu_gpio->dvo, MPC5XXX_GPIO_WKUP_PSC3_9);
|
|
|
|
/* Enable display backlight */
|
|
clrbits_8(&gpio->sint_inten, MPC5XXX_GPIO_SINT_PSC3_8);
|
|
setbits_8(&gpio->sint_gpioe, MPC5XXX_GPIO_SINT_PSC3_8);
|
|
setbits_8(&gpio->sint_ddr, MPC5XXX_GPIO_SINT_PSC3_8);
|
|
setbits_8(&gpio->sint_dvo, MPC5XXX_GPIO_SINT_PSC3_8);
|
|
|
|
/*
|
|
* Configure three wire serial interface to RTC (PSC1_4,
|
|
* PSC2_4, PSC3_4, PSC3_5)
|
|
*/
|
|
setbits_8(&wu_gpio->enable, MPC5XXX_GPIO_WKUP_PSC1_4 |
|
|
MPC5XXX_GPIO_WKUP_PSC2_4);
|
|
setbits_8(&wu_gpio->ddr, MPC5XXX_GPIO_WKUP_PSC1_4 |
|
|
MPC5XXX_GPIO_WKUP_PSC2_4);
|
|
clrbits_8(&wu_gpio->dvo, MPC5XXX_GPIO_WKUP_PSC1_4);
|
|
clrbits_8(&gpio->sint_inten, MPC5XXX_GPIO_SINT_PSC3_4 |
|
|
MPC5XXX_GPIO_SINT_PSC3_5);
|
|
setbits_8(&gpio->sint_gpioe, MPC5XXX_GPIO_SINT_PSC3_4 |
|
|
MPC5XXX_GPIO_SINT_PSC3_5);
|
|
setbits_8(&gpio->sint_ddr, MPC5XXX_GPIO_SINT_PSC3_5);
|
|
clrbits_8(&gpio->sint_dvo, MPC5XXX_GPIO_SINT_PSC3_5);
|
|
|
|
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
|