upstream u-boot with additional patches for our devices/boards: https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ; Gbit ethernet patch for some LIME2 revisions ; with SPI flash support
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u-boot/board/matrix_vision/mvsmr/mvsmr.c

264 lines
6.5 KiB

/*
* (C) Copyright 2003
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* (C) Copyright 2004
* Mark Jonas, Freescale Semiconductor, mark.jonas@motorola.com.
*
* (C) Copyright 2005-2010
* Andre Schwarz, Matrix Vision GmbH, andre.schwarz@matrix-vision.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 <common.h>
#include <mpc5xxx.h>
#include <malloc.h>
#include <pci.h>
#include <i2c.h>
#include <fpga.h>
#include <environment.h>
#include <netdev.h>
#include <asm/io.h>
#include "fpga.h"
#include "mvsmr.h"
#include "../common/mv_common.h"
#define SDRAM_DDR 1
#define SDRAM_MODE 0x018D0000
#define SDRAM_EMODE 0x40090000
#define SDRAM_CONTROL 0x715f0f00
#define SDRAM_CONFIG1 0xd3722930
#define SDRAM_CONFIG2 0x46770000
DECLARE_GLOBAL_DATA_PTR;
static void sdram_start(int hi_addr)
{
long hi_bit = hi_addr ? 0x01000000 : 0;
/* unlock mode register */
out_be32((u32 *)MPC5XXX_SDRAM_CTRL, SDRAM_CONTROL | 0x80000000 |
hi_bit);
/* precharge all banks */
out_be32((u32 *)MPC5XXX_SDRAM_CTRL, SDRAM_CONTROL | 0x80000002 |
hi_bit);
/* set mode register: extended mode */
out_be32((u32 *)MPC5XXX_SDRAM_MODE, SDRAM_EMODE);
/* set mode register: reset DLL */
out_be32((u32 *)MPC5XXX_SDRAM_MODE, SDRAM_MODE | 0x04000000);
/* precharge all banks */
out_be32((u32 *)MPC5XXX_SDRAM_CTRL, SDRAM_CONTROL | 0x80000002 |
hi_bit);
/* auto refresh */
out_be32((u32 *)MPC5XXX_SDRAM_CTRL, SDRAM_CONTROL | 0x80000004 |
hi_bit);
/* set mode register */
out_be32((u32 *)MPC5XXX_SDRAM_MODE, SDRAM_MODE);
/* normal operation */
out_be32((u32 *)MPC5XXX_SDRAM_CTRL, SDRAM_CONTROL | hi_bit);
}
phys_addr_t initdram(int board_type)
{
ulong dramsize = 0;
ulong test1,
test2;
/* setup SDRAM chip selects */
out_be32((u32 *)MPC5XXX_SDRAM_CS0CFG, 0x0000001e);
/* setup config registers */
out_be32((u32 *)MPC5XXX_SDRAM_CONFIG1, SDRAM_CONFIG1);
out_be32((u32 *)MPC5XXX_SDRAM_CONFIG2, SDRAM_CONFIG2);
/* 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;
if (dramsize < (1 << 20))
dramsize = 0;
if (dramsize > 0)
out_be32((u32 *)MPC5XXX_SDRAM_CS0CFG, 0x13 +
__builtin_ffs(dramsize >> 20) - 1);
else
out_be32((u32 *)MPC5XXX_SDRAM_CS0CFG, 0);
return dramsize;
}
void mvsmr_init_gpio(void)
{
struct mpc5xxx_gpio *gpio = (struct mpc5xxx_gpio *)MPC5XXX_GPIO;
struct mpc5xxx_wu_gpio *wu_gpio =
(struct mpc5xxx_wu_gpio *)MPC5XXX_WU_GPIO;
struct mpc5xxx_gpt_0_7 *timers = (struct mpc5xxx_gpt_0_7 *)MPC5XXX_GPT;
printf("Ports : 0x%08x\n", gpio->port_config);
printf("PORCFG: 0x%08x\n", in_be32((unsigned *)MPC5XXX_CDM_PORCFG));
out_be32(&gpio->simple_ddr, SIMPLE_DDR);
out_be32(&gpio->simple_dvo, SIMPLE_DVO);
out_be32(&gpio->simple_ode, SIMPLE_ODE);
out_be32(&gpio->simple_gpioe, SIMPLE_GPIOEN);
out_8(&gpio->sint_ode, SINT_ODE);
out_8(&gpio->sint_ddr, SINT_DDR);
out_8(&gpio->sint_dvo, SINT_DVO);
out_8(&gpio->sint_inten, SINT_INTEN);
out_be16(&gpio->sint_itype, SINT_ITYPE);
out_8(&gpio->sint_gpioe, SINT_GPIOEN);
out_8(&wu_gpio->ode, WKUP_ODE);
out_8(&wu_gpio->ddr, WKUP_DIR);
out_8(&wu_gpio->dvo, WKUP_DO);
out_8(&wu_gpio->enable, WKUP_EN);
out_be32(&timers->gpt0.emsr, 0x00000234); /* OD output high */
out_be32(&timers->gpt1.emsr, 0x00000234);
out_be32(&timers->gpt2.emsr, 0x00000234);
out_be32(&timers->gpt3.emsr, 0x00000234);
out_be32(&timers->gpt4.emsr, 0x00000234);
out_be32(&timers->gpt5.emsr, 0x00000234);
out_be32(&timers->gpt6.emsr, 0x00000024); /* push-pull output low */
out_be32(&timers->gpt7.emsr, 0x00000024);
}
int misc_init_r(void)
{
char *s = getenv("reset_env");
if (s) {
printf(" === FACTORY RESET ===\n");
mv_reset_environment();
saveenv();
}
return -1;
}
void mvsmr_get_dbg_present(void)
{
struct mpc5xxx_gpio *gpio = (struct mpc5xxx_gpio *)MPC5XXX_GPIO;
struct mpc5xxx_psc *psc = (struct mpc5xxx_psc *)MPC5XXX_PSC1;
if (in_be32(&gpio->simple_ival) & COP_PRESENT) {
setenv("dbg_present", "no\0");
setenv("bootstopkey", "abcdefghijklmnopqrstuvwxyz\0");
} else {
setenv("dbg_present", "yes\0");
setenv("bootstopkey", "s\0");
setbits_8(&psc->command, PSC_RX_ENABLE);
}
}
void mvsmr_get_service_mode(void)
{
struct mpc5xxx_wu_gpio *wu_gpio =
(struct mpc5xxx_wu_gpio *)MPC5XXX_WU_GPIO;
if (in_8(&wu_gpio->ival) & SERVICE_MODE)
setenv("servicemode", "no\0");
else
setenv("servicemode", "yes\0");
}
int mvsmr_get_mac(void)
{
unsigned char mac[6];
struct mpc5xxx_wu_gpio *wu_gpio =
(struct mpc5xxx_wu_gpio *)MPC5XXX_WU_GPIO;
if (in_8(&wu_gpio->ival) & LAN_PRSNT) {
setenv("lan_present", "no\0");
return -1;
} else
setenv("lan_present", "yes\0");
i2c_read(0x50, 0, 1, mac, 6);
eth_setenv_enetaddr("ethaddr", mac);
return 0;
}
int checkboard(void)
{
mvsmr_init_gpio();
printf("Board: Matrix Vision mvSMR\n");
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.
*/
clrbits_be32((u32 *)MPC5XXX_BOOTCS_CFG, 0x1);
}
void flash_afterinit(ulong size)
{
out_be32((u32 *)MPC5XXX_BOOTCS_START,
START_REG(CONFIG_SYS_BOOTCS_START | size));
out_be32((u32 *)MPC5XXX_CS0_START,
START_REG(CONFIG_SYS_BOOTCS_START | size));
out_be32((u32 *)MPC5XXX_BOOTCS_STOP,
STOP_REG(CONFIG_SYS_BOOTCS_START | size, size));
out_be32((u32 *)MPC5XXX_CS0_STOP,
STOP_REG(CONFIG_SYS_BOOTCS_START | size, size));
}
struct pci_controller hose;
void pci_init_board(void)
{
mvsmr_get_dbg_present();
mvsmr_get_service_mode();
mvsmr_init_fpga();
mv_load_fpga();
pci_mpc5xxx_init(&hose);
}
int board_eth_init(bd_t *bis)
{
if (!mvsmr_get_mac())
return cpu_eth_init(bis);
return pci_eth_init(bis);
}