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Fix for RUTX platform

This commit is contained in:
Ycarus (Yannick Chabanois) 2022-03-28 18:17:07 +02:00
parent ccdb64ad45
commit 59bc57d5d5
7254 changed files with 1810270 additions and 7 deletions

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#
# (C) Copyright 2003-2006
# 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 $(TOPDIR)/config.mk
LIB = $(obj)lib$(BOARD).o
COBJS := $(BOARD).o cmd_bc3450.o
SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
OBJS := $(addprefix $(obj),$(COBJS))
SOBJS := $(addprefix $(obj),$(SOBJS))
$(LIB): $(obj).depend $(OBJS)
$(call cmd_link_o_target, $(OBJS))
#########################################################################
# defines $(obj).depend target
include $(SRCTREE)/rules.mk
sinclude $(obj).depend
#########################################################################

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/*
* (C) Copyright 2003-2004
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* (C) Copyright 2004
* Mark Jonas, Freescale Semiconductor, mark.jonas@motorola.com.
*
* (C) Copyright 2004-2005
* Martin Krause, TQ-Systems GmbH, martin.krause@tqs.de
*
* (C) Copyright 2006
* Stefan Strobl, GERSYS GmbH, stefan.strobl@gersys.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 <pci.h>
#include <netdev.h>
#ifdef CONFIG_VIDEO_SM501
#include <sm501.h>
#endif
#if defined(CONFIG_MPC5200_DDR)
#include "mt46v16m16-75.h"
#else
#include "mt48lc16m16a2-75.h"
#endif
#ifdef CONFIG_RTC_MPC5200
#include <rtc.h>
#endif
#ifdef CONFIG_PS2MULT
void ps2mult_early_init(void);
#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;
#ifndef CONFIG_SYS_RAMBOOT
ulong test1, test2;
/* setup SDRAM chip selects */
*(vu_long *)MPC5XXX_SDRAM_CS0CFG = 0x0000001c; /* 512MB at 0x0 */
*(vu_long *)MPC5XXX_SDRAM_CS1CFG = 0x40000000; /* 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, 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) {
*(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 + 0x0000001c; /* 512MB */
/* find RAM size using SDRAM CS1 only */
sdram_start(0);
test1 = get_ram_size((long *)(CONFIG_SYS_SDRAM_BASE + dramsize), 0x20000000);
sdram_start(1);
test2 = get_ram_size((long *)(CONFIG_SYS_SDRAM_BASE + dramsize), 0x20000000);
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 */
return dramsize;
}
int checkboard (void)
{
#if defined (CONFIG_TQM5200)
puts ("Board: TQM5200 (TQ-Components GmbH)\n");
#endif
#if defined (CONFIG_BC3450)
puts ("Dev: GERSYS BC3450\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 */
}
#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;
}
void ide_set_reset (int idereset)
{
debug ("ide_reset(%d)\n", idereset);
if (idereset) {
*(vu_long *) MPC5XXX_WU_GPIO_DATA_O &= ~GPIO_PSC1_4;
} else {
*(vu_long *) MPC5XXX_WU_GPIO_DATA_O |= GPIO_PSC1_4;
}
}
#endif
#ifdef CONFIG_POST
/*
* Reads GPIO pin PSC6_3. A keypress is reported, if PSC6_3 is low. If PSC6_3
* is left open, no keypress is detected.
*/
int post_hotkeys_pressed(void)
{
struct mpc5xxx_gpio *gpio;
gpio = (struct mpc5xxx_gpio*) MPC5XXX_GPIO;
/*
* Configure PSC6_1 and PSC6_3 as GPIO. PSC6 then couldn't be used in
* CODEC or UART mode. Consumer IrDA should still be possible.
*/
gpio->port_config &= ~(0x07000000);
gpio->port_config |= 0x03000000;
/* Enable GPIO for GPIO_IRDA_1 (IR_USB_CLK pin) = PSC6_3 */
gpio->simple_gpioe |= 0x20000000;
/* Configure GPIO_IRDA_1 as input */
gpio->simple_ddr &= ~(0x20000000);
return ((gpio->simple_ival & 0x20000000) ? 0 : 1);
}
#endif
#ifdef CONFIG_BOARD_EARLY_INIT_R
int board_early_init_r (void)
{
#ifdef CONFIG_RTC_MPC5200
struct rtc_time t;
/* set to Wed Dec 31 19:00:00 1969 */
t.tm_sec = t.tm_min = 0;
t.tm_hour = 19;
t.tm_mday = 31;
t.tm_mon = 12;
t.tm_year = 1969;
t.tm_wday = 3;
rtc_set(&t);
#endif /* CONFIG_RTC_MPC5200 */
#ifdef CONFIG_PS2MULT
ps2mult_early_init();
#endif /* CONFIG_PS2MULT */
return (0);
}
#endif /* CONFIG_BOARD_EARLY_INIT_R */
int last_stage_init (void)
{
/*
* auto scan for really existing devices and re-set chip select
* configuration.
*/
u16 save, tmp;
int restore;
/*
* Check for SRAM and SRAM size
*/
/* save original SRAM content */
save = *(volatile u16 *)CONFIG_SYS_CS2_START;
restore = 1;
/* write test pattern to SRAM */
*(volatile u16 *)CONFIG_SYS_CS2_START = 0xA5A5;
__asm__ volatile ("sync");
/*
* Put a different pattern on the data lines: otherwise they may float
* long enough to read back what we wrote.
*/
tmp = *(volatile u16 *)CONFIG_SYS_FLASH_BASE;
if (tmp == 0xA5A5)
puts ("!! possible error in SRAM detection\n");
if (*(volatile u16 *)CONFIG_SYS_CS2_START != 0xA5A5) {
/* no SRAM at all, disable cs */
*(vu_long *)MPC5XXX_ADDECR &= ~(1 << 18);
*(vu_long *)MPC5XXX_CS2_START = 0x0000FFFF;
*(vu_long *)MPC5XXX_CS2_STOP = 0x0000FFFF;
restore = 0;
__asm__ volatile ("sync");
} else if (*(volatile u16 *)(CONFIG_SYS_CS2_START + (1<<19)) == 0xA5A5) {
/* make sure that we access a mirrored address */
*(volatile u16 *)CONFIG_SYS_CS2_START = 0x1111;
__asm__ volatile ("sync");
if (*(volatile u16 *)(CONFIG_SYS_CS2_START + (1<<19)) == 0x1111) {
/* SRAM size = 512 kByte */
*(vu_long *)MPC5XXX_CS2_STOP = STOP_REG(CONFIG_SYS_CS2_START,
0x80000);
__asm__ volatile ("sync");
puts ("SRAM: 512 kB\n");
}
else
puts ("!! possible error in SRAM detection\n");
} else {
puts ("SRAM: 1 MB\n");
}
/* restore origianl SRAM content */
if (restore) {
*(volatile u16 *)CONFIG_SYS_CS2_START = save;
__asm__ volatile ("sync");
}
/*
* Check for Grafic Controller
*/
/* save origianl FB content */
save = *(volatile u16 *)CONFIG_SYS_CS1_START;
restore = 1;
/* write test pattern to FB memory */
*(volatile u16 *)CONFIG_SYS_CS1_START = 0xA5A5;
__asm__ volatile ("sync");
/*
* Put a different pattern on the data lines: otherwise they may float
* long enough to read back what we wrote.
*/
tmp = *(volatile u16 *)CONFIG_SYS_FLASH_BASE;
if (tmp == 0xA5A5)
puts ("!! possible error in grafic controller detection\n");
if (*(volatile u16 *)CONFIG_SYS_CS1_START != 0xA5A5) {
/* no grafic controller at all, disable cs */
*(vu_long *)MPC5XXX_ADDECR &= ~(1 << 17);
*(vu_long *)MPC5XXX_CS1_START = 0x0000FFFF;
*(vu_long *)MPC5XXX_CS1_STOP = 0x0000FFFF;
restore = 0;
__asm__ volatile ("sync");
} else {
puts ("VGA: SMI501 (Voyager) with 8 MB\n");
}
/* restore origianl FB content */
if (restore) {
*(volatile u16 *)CONFIG_SYS_CS1_START = save;
__asm__ volatile ("sync");
}
return 0;
}
#ifdef CONFIG_VIDEO_SM501
#define DISPLAY_WIDTH 640
#define DISPLAY_HEIGHT 480
#ifdef CONFIG_VIDEO_SM501_8BPP
#error CONFIG_VIDEO_SM501_8BPP not supported.
#endif /* CONFIG_VIDEO_SM501_8BPP */
#ifdef CONFIG_VIDEO_SM501_16BPP
#error CONFIG_VIDEO_SM501_16BPP not supported.
#endif /* CONFIG_VIDEO_SM501_16BPP */
#ifdef CONFIG_VIDEO_SM501_32BPP
static const SMI_REGS init_regs [] =
{
#if defined (CONFIG_BC3450_FP) && !defined (CONFIG_BC3450_CRT)
/* FP only */
{0x00004, 0x0},
{0x00048, 0x00021807},
{0x0004C, 0x091a0a01},
{0x00054, 0x1},
{0x00040, 0x00021807},
{0x00044, 0x091a0a01},
{0x00054, 0x0},
{0x80000, 0x01013106},
{0x80004, 0xc428bb17},
{0x80000, 0x03013106},
{0x8000C, 0x00000000},
{0x80010, 0x0a000a00},
{0x80014, 0x02800000},
{0x80018, 0x01e00000},
{0x8001C, 0x00000000},
{0x80020, 0x01e00280},
{0x80024, 0x02fa027f},
{0x80028, 0x004a028b},
{0x8002C, 0x020c01df},
{0x80030, 0x000201e9},
{0x80200, 0x00010200},
{0x80000, 0x0f013106},
#elif defined (CONFIG_BC3450_CRT) && !defined (CONFIG_BC3450_FP)
/* CRT only */
{0x00004, 0x0},
{0x00048, 0x00021807},
{0x0004C, 0x10090a01},
{0x00054, 0x1},
{0x00040, 0x00021807},
{0x00044, 0x10090a01},
{0x00054, 0x0},
{0x80200, 0x00010000},
{0x80204, 0x0},
{0x80208, 0x0A000A00},
{0x8020C, 0x02fa027f},
{0x80210, 0x004a028b},
{0x80214, 0x020c01df},
{0x80218, 0x000201e9},
{0x80200, 0x00013306},
#else /* panel + CRT */
{0x00004, 0x0},
{0x00048, 0x00021807},
{0x0004C, 0x091a0a01},
{0x00054, 0x1},
{0x00040, 0x00021807},
{0x00044, 0x091a0a01},
{0x00054, 0x0},
{0x80000, 0x0f013106},
{0x80004, 0xc428bb17},
{0x8000C, 0x00000000},
{0x80010, 0x0a000a00},
{0x80014, 0x02800000},
{0x80018, 0x01e00000},
{0x8001C, 0x00000000},
{0x80020, 0x01e00280},
{0x80024, 0x02fa027f},
{0x80028, 0x004a028b},
{0x8002C, 0x020c01df},
{0x80030, 0x000201e9},
{0x80200, 0x00010000},
#endif
{0, 0}
};
#endif /* CONFIG_VIDEO_SM501_32BPP */
#ifdef CONFIG_CONSOLE_EXTRA_INFO
/*
* Return text to be printed besides the logo.
*/
void video_get_info_str (int line_number, char *info)
{
if (line_number == 1) {
#if defined (CONFIG_TQM5200)
strcpy (info, " Board: TQM5200 (TQ-Components GmbH)");
#else
#error No supported board selected
#endif /* CONFIG_TQM5200 */
#if defined (CONFIG_BC3450)
} else if (line_number == 2) {
strcpy (info, " Dev: GERSYS BC3450");
#endif /* CONFIG_BC3450 */
}
else {
info [0] = '\0';
}
}
#endif
/*
* Returns SM501 register base address. First thing called in the
* driver. Checks if SM501 is physically present.
*/
unsigned int board_video_init (void)
{
u16 save, tmp;
int restore, ret;
/*
* Check for Grafic Controller
*/
/* save origianl FB content */
save = *(volatile u16 *)CONFIG_SYS_CS1_START;
restore = 1;
/* write test pattern to FB memory */
*(volatile u16 *)CONFIG_SYS_CS1_START = 0xA5A5;
__asm__ volatile ("sync");
/*
* Put a different pattern on the data lines: otherwise they may float
* long enough to read back what we wrote.
*/
tmp = *(volatile u16 *)CONFIG_SYS_FLASH_BASE;
if (tmp == 0xA5A5)
puts ("!! possible error in grafic controller detection\n");
if (*(volatile u16 *)CONFIG_SYS_CS1_START != 0xA5A5) {
/* no grafic controller found */
restore = 0;
ret = 0;
} else {
ret = SM501_MMIO_BASE;
}
if (restore) {
*(volatile u16 *)CONFIG_SYS_CS1_START = save;
__asm__ volatile ("sync");
}
return ret;
}
/*
* Returns SM501 framebuffer address
*/
unsigned int board_video_get_fb (void)
{
return SM501_FB_BASE;
}
/*
* Called after initializing the SM501 and before clearing the screen.
*/
void board_validate_screen (unsigned int base)
{
}
/*
* Return a pointer to the initialization sequence.
*/
const SMI_REGS *board_get_regs (void)
{
return init_regs;
}
int board_get_width (void)
{
return DISPLAY_WIDTH;
}
int board_get_height (void)
{
return DISPLAY_HEIGHT;
}
#endif /* CONFIG_VIDEO_SM501 */
int board_eth_init(bd_t *bis)
{
cpu_eth_init(bis); /* Built in FEC comes first */
return pci_eth_init(bis);
}

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/*
* (C) Copyright 2005
* Stefan Strobl, GERSYS GmbH, stefan.strobl@gersys.de
*
* (C) Copyright 2005
* Martin Krause, TQ-Systems GmbH, martin.krause@tqs.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 <command.h>
/*
* BC3450 specific commands
*/
#if defined(CONFIG_CMD_BSP)
/*
* Definitions for DS1620 chip
*/
#define THERM_START_CONVERT 0xee
#define THERM_RESET 0xaf
#define THERM_READ_CONFIG 0xac
#define THERM_READ_TEMP 0xaa
#define THERM_READ_TL 0xa2
#define THERM_READ_TH 0xa1
#define THERM_WRITE_CONFIG 0x0c
#define THERM_WRITE_TL 0x02
#define THERM_WRITE_TH 0x01
#define CONFIG_SYS_1SHOT 1
#define CONFIG_SYS_STANDALONE 0
struct therm {
int hi;
int lo;
};
/*
* SM501 Register
*/
#define SM501_GPIO_CTRL_LOW 0x00000008UL /* gpio pins 0..31 */
#define SM501_GPIO_CTRL_HIGH 0x0000000CUL /* gpio pins 32..63 */
#define SM501_POWER_MODE0_GATE 0x00000040UL
#define SM501_POWER_MODE1_GATE 0x00000048UL
#define POWER_MODE_GATE_GPIO_PWM_I2C 0x00000040UL
#define SM501_GPIO_DATA_LOW 0x00010000UL
#define SM501_GPIO_DATA_HIGH 0x00010004UL
#define SM501_GPIO_DATA_DIR_LOW 0x00010008UL
#define SM501_GPIO_DATA_DIR_HIGH 0x0001000CUL
#define SM501_PANEL_DISPLAY_CONTROL 0x00080000UL
#define SM501_CRT_DISPLAY_CONTROL 0x00080200UL
/* SM501 CRT Display Control Bits */
#define SM501_CDC_SEL (1 << 9)
#define SM501_CDC_TE (1 << 8)
#define SM501_CDC_E (1 << 2)
/* SM501 Panel Display Control Bits */
#define SM501_PDC_FPEN (1 << 27)
#define SM501_PDC_BIAS (1 << 26)
#define SM501_PDC_DATA (1 << 25)
#define SM501_PDC_VDDEN (1 << 24)
/* SM501 GPIO Data LOW Bits */
#define SM501_GPIO24 0x01000000
#define SM501_GPIO25 0x02000000
#define SM501_GPIO26 0x04000000
#define SM501_GPIO27 0x08000000
#define SM501_GPIO28 0x10000000
#define SM501_GPIO29 0x20000000
#define SM501_GPIO30 0x40000000
#define SM501_GPIO31 0x80000000
/* SM501 GPIO Data HIGH Bits */
#define SM501_GPIO46 0x00004000
#define SM501_GPIO47 0x00008000
#define SM501_GPIO48 0x00010000
#define SM501_GPIO49 0x00020000
#define SM501_GPIO50 0x00040000
#define SM501_GPIO51 0x00080000
/* BC3450 GPIOs @ SM501 Data LOW */
#define DIP (SM501_GPIO24 | SM501_GPIO25 | SM501_GPIO26 | SM501_GPIO27)
#define DS1620_DQ SM501_GPIO29 /* I/O */
#define DS1620_CLK SM501_GPIO30 /* High active O/P */
#define DS1620_RES SM501_GPIO31 /* Low active O/P */
/* BC3450 GPIOs @ SM501 Data HIGH */
#define BUZZER SM501_GPIO47 /* Low active O/P */
#define DS1620_TLOW SM501_GPIO48 /* High active I/P */
#define PWR_OFF SM501_GPIO49 /* Low active O/P */
#define FP_DATA_TRI SM501_GPIO50 /* High active O/P */
/*
* Initialise GPIO on SM501
*
* This function may be called from several other functions.
* Yet, the initialisation sequence is executed only the first
* time the function is called.
*/
int sm501_gpio_init (void)
{
static int init_done = 0;
if (init_done) {
debug("sm501_gpio_init: nothing to be done.\n");
return 1;
}
/* enable SM501 GPIO control (in both power modes) */
*(vu_long *) (SM501_MMIO_BASE + SM501_POWER_MODE0_GATE) |=
POWER_MODE_GATE_GPIO_PWM_I2C;
*(vu_long *) (SM501_MMIO_BASE + SM501_POWER_MODE1_GATE) |=
POWER_MODE_GATE_GPIO_PWM_I2C;
/* set up default O/Ps */
*(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_LOW) &=
~(DS1620_RES | DS1620_CLK);
*(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_LOW) |= DS1620_DQ;
*(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_HIGH) &=
~(FP_DATA_TRI);
*(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_HIGH) |=
(BUZZER | PWR_OFF);
/* configure directions for SM501 GPIO pins */
*(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_CTRL_LOW) &= ~(0xFF << 24);
*(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_CTRL_HIGH) &=
~(0x3F << 14);
*(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_DIR_LOW) &=
~(DIP | DS1620_DQ);
*(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_DIR_LOW) |=
(DS1620_RES | DS1620_CLK);
*(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_DIR_HIGH) &=
~DS1620_TLOW;
*(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_DIR_HIGH) |=
(PWR_OFF | BUZZER | FP_DATA_TRI);
init_done = 1;
debug("sm501_gpio_init: done.\n");
return 0;
}
/*
* dip - read Config Inputs
*
* read and prints the dip switch
* and/or external config inputs (4bits) 0...0x0F
*/
int cmd_dip (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
{
vu_long rc = 0;
sm501_gpio_init ();
/* read dip switch */
rc = *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_LOW);
rc = ~rc;
rc &= DIP;
rc = (int) (rc >> 24);
/* plausibility check */
if (rc > 0x0F)
return -1;
printf ("0x%lx\n", rc);
return 0;
}
U_BOOT_CMD (dip, 1, 1, cmd_dip,
"read dip switch and config inputs",
"\n"
" - prints the state of the dip switch and/or\n"
" external configuration inputs as hex value.\n"
" - \"Config 1\" is the LSB");
/*
* buz - turns Buzzer on/off
*/
#ifdef CONFIG_BC3450_BUZZER
static int cmd_buz (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
{
if (argc != 2) {
printf ("Usage:\nspecify one argument: \"on\" or \"off\"\n");
return 1;
}
sm501_gpio_init ();
if (strncmp (argv[1], "on", 2) == 0) {
*(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_HIGH) &=
~(BUZZER);
return 0;
} else if (strncmp (argv[1], "off", 3) == 0) {
*(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_HIGH) |=
BUZZER;
return 0;
}
printf ("Usage:\nspecify one argument: \"on\" or \"off\"\n");
return 1;
}
U_BOOT_CMD (buz, 2, 1, cmd_buz,
"turns buzzer on/off",
"\n" "buz <on/off>\n" " - turns the buzzer on or off");
#endif /* CONFIG_BC3450_BUZZER */
/*
* fp - front panel commands
*/
static int cmd_fp (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
{
sm501_gpio_init ();
if (strncmp (argv[1], "on", 2) == 0) {
/* turn on VDD first */
*(vu_long *) (SM501_MMIO_BASE +
SM501_PANEL_DISPLAY_CONTROL) |= SM501_PDC_VDDEN;
udelay (1000);
/* then put data on */
*(vu_long *) (SM501_MMIO_BASE +
SM501_PANEL_DISPLAY_CONTROL) |= SM501_PDC_DATA;
/* wait some time and enable backlight */
udelay (1000);
*(vu_long *) (SM501_MMIO_BASE +
SM501_PANEL_DISPLAY_CONTROL) |= SM501_PDC_BIAS;
udelay (1000);
*(vu_long *) (SM501_MMIO_BASE +
SM501_PANEL_DISPLAY_CONTROL) |= SM501_PDC_FPEN;
return 0;
} else if (strncmp (argv[1], "off", 3) == 0) {
/* turn off the backlight first */
*(vu_long *) (SM501_MMIO_BASE +
SM501_PANEL_DISPLAY_CONTROL) &= ~SM501_PDC_FPEN;
udelay (1000);
*(vu_long *) (SM501_MMIO_BASE +
SM501_PANEL_DISPLAY_CONTROL) &= ~SM501_PDC_BIAS;
udelay (200000);
/* wait some time, then remove data */
*(vu_long *) (SM501_MMIO_BASE +
SM501_PANEL_DISPLAY_CONTROL) &= ~SM501_PDC_DATA;
udelay (1000);
/* and remove VDD last */
*(vu_long *) (SM501_MMIO_BASE +
SM501_PANEL_DISPLAY_CONTROL) &=
~SM501_PDC_VDDEN;
return 0;
} else if (strncmp (argv[1], "bl", 2) == 0) {
/* turn on/off backlight only */
if (strncmp (argv[2], "on", 2) == 0) {
*(vu_long *) (SM501_MMIO_BASE +
SM501_PANEL_DISPLAY_CONTROL) |=
SM501_PDC_BIAS;
udelay (1000);
*(vu_long *) (SM501_MMIO_BASE +
SM501_PANEL_DISPLAY_CONTROL) |=
SM501_PDC_FPEN;
return 0;
} else if (strncmp (argv[2], "off", 3) == 0) {
*(vu_long *) (SM501_MMIO_BASE +
SM501_PANEL_DISPLAY_CONTROL) &=
~SM501_PDC_FPEN;
udelay (1000);
*(vu_long *) (SM501_MMIO_BASE +
SM501_PANEL_DISPLAY_CONTROL) &=
~SM501_PDC_BIAS;
return 0;
}
}
#ifdef CONFIG_BC3450_CRT
else if (strncmp (argv[1], "crt", 3) == 0) {
/* enables/disables the crt output (debug only) */
if (strncmp (argv[2], "on", 2) == 0) {
*(vu_long *) (SM501_MMIO_BASE +
SM501_CRT_DISPLAY_CONTROL) |=
(SM501_CDC_TE | SM501_CDC_E);
*(vu_long *) (SM501_MMIO_BASE +
SM501_CRT_DISPLAY_CONTROL) &=
~SM501_CDC_SEL;
return 0;
} else if (strncmp (argv[2], "off", 3) == 0) {
*(vu_long *) (SM501_MMIO_BASE +
SM501_CRT_DISPLAY_CONTROL) &=
~(SM501_CDC_TE | SM501_CDC_E);
*(vu_long *) (SM501_MMIO_BASE +
SM501_CRT_DISPLAY_CONTROL) |=
SM501_CDC_SEL;
return 0;
}
}
#endif /* CONFIG_BC3450_CRT */
printf ("Usage:%s\n", cmdtp->help);
return 1;
}
U_BOOT_CMD (fp, 3, 1, cmd_fp,
"front panes access functions",
"\n"
"fp bl <on/off>\n"
" - turns the CCFL backlight of the display on/off\n"
"fp <on/off>\n" " - turns the whole display on/off"
#ifdef CONFIG_BC3450_CRT
"\n"
"fp crt <on/off>\n"
" - enables/disables the crt output (debug only)"
#endif /* CONFIG_BC3450_CRT */
);
/*
* temp - DS1620 thermometer
*/
/* GERSYS BC3450 specific functions */
static inline void bc_ds1620_set_clk (int clk)
{
if (clk)
*(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_LOW) |=
DS1620_CLK;
else
*(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_LOW) &=
~DS1620_CLK;
}
static inline void bc_ds1620_set_data (int dat)
{
if (dat)
*(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_LOW) |=
DS1620_DQ;
else
*(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_LOW) &=
~DS1620_DQ;
}
static inline int bc_ds1620_get_data (void)
{
vu_long rc;
rc = *(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_LOW);
rc &= DS1620_DQ;
if (rc != 0)
rc = 1;
return (int) rc;
}
static inline void bc_ds1620_set_data_dir (int dir)
{
if (dir) /* in */
*(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_DIR_LOW) &= ~DS1620_DQ;
else /* out */
*(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_DIR_LOW) |= DS1620_DQ;
}
static inline void bc_ds1620_set_reset (int res)
{
if (res)
*(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_LOW) |= DS1620_RES;
else
*(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_LOW) &= ~DS1620_RES;
}
/* hardware independent functions */
static void ds1620_send_bits (int nr, int value)
{
int i;
for (i = 0; i < nr; i++) {
bc_ds1620_set_data (value & 1);
bc_ds1620_set_clk (0);
udelay (1);
bc_ds1620_set_clk (1);
udelay (1);
value >>= 1;
}
}
static unsigned int ds1620_recv_bits (int nr)
{
unsigned int value = 0, mask = 1;
int i;
bc_ds1620_set_data (0);
for (i = 0; i < nr; i++) {
bc_ds1620_set_clk (0);
udelay (1);
if (bc_ds1620_get_data ())
value |= mask;
mask <<= 1;
bc_ds1620_set_clk (1);
udelay (1);
}
return value;
}
static void ds1620_out (int cmd, int bits, int value)
{
bc_ds1620_set_clk (1);
bc_ds1620_set_data_dir (0);
bc_ds1620_set_reset (0);
udelay (1);
bc_ds1620_set_reset (1);
udelay (1);
ds1620_send_bits (8, cmd);
if (bits)
ds1620_send_bits (bits, value);
udelay (1);
/* go stand alone */
bc_ds1620_set_data_dir (1);
bc_ds1620_set_reset (0);
bc_ds1620_set_clk (0);
udelay (10000);
}
static unsigned int ds1620_in (int cmd, int bits)
{
unsigned int value;
bc_ds1620_set_clk (1);
bc_ds1620_set_data_dir (0);
bc_ds1620_set_reset (0);
udelay (1);
bc_ds1620_set_reset (1);
udelay (1);
ds1620_send_bits (8, cmd);
bc_ds1620_set_data_dir (1);
value = ds1620_recv_bits (bits);
/* go stand alone */
bc_ds1620_set_data_dir (1);
bc_ds1620_set_reset (0);
bc_ds1620_set_clk (0);
return value;
}
static int cvt_9_to_int (unsigned int val)
{
if (val & 0x100)
val |= 0xfffffe00;
return val;
}
/* set thermostate thresholds */
static void ds1620_write_state (struct therm *therm)
{
ds1620_out (THERM_WRITE_TL, 9, therm->lo);
ds1620_out (THERM_WRITE_TH, 9, therm->hi);
ds1620_out (THERM_START_CONVERT, 0, 0);
}
static int cmd_temp (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
{
int i;
struct therm therm;
sm501_gpio_init ();
/* print temperature */
if (argc == 1) {
i = cvt_9_to_int (ds1620_in (THERM_READ_TEMP, 9));
printf ("%d.%d C\n", i >> 1, i & 1 ? 5 : 0);
return 0;
}
/* set to default operation */
if (strncmp (argv[1], "set", 3) == 0) {
if (strncmp (argv[2], "default", 3) == 0) {
therm.hi = +88;
therm.lo = -20;
therm.hi <<= 1;
therm.lo <<= 1;
ds1620_write_state (&therm);
ds1620_out (THERM_WRITE_CONFIG, 8, CONFIG_SYS_STANDALONE);
return 0;
}
}
printf ("Usage:%s\n", cmdtp->help);
return 1;
}
U_BOOT_CMD (temp, 3, 1, cmd_temp,
"print current temperature",
"\n" "temp\n" " - print current temperature");
#ifdef CONFIG_BC3450_CAN
/*
* Initialise CAN interface
*
* return 1 on CAN initialization failure
* return 0 if no failure
*/
int can_init (void)
{
static int init_done = 0;
int i;
struct mpc5xxx_mscan *can1 =
(struct mpc5xxx_mscan *) (CONFIG_SYS_MBAR + 0x0900);
struct mpc5xxx_mscan *can2 =
(struct mpc5xxx_mscan *) (CONFIG_SYS_MBAR + 0x0980);
/* GPIO configuration of the CAN pins is done in BC3450.h */
if (!init_done) {
/* init CAN 1 */
can1->canctl1 |= 0x80; /* CAN enable */
udelay (100);
i = 0;
can1->canctl0 |= 0x02; /* sleep mode */
/* wait until sleep mode reached */
while (!(can1->canctl1 & 0x02)) {
udelay (10);
i++;
if (i == 10) {
printf ("%s: CAN1 initialize error, "
"can not enter sleep mode!\n",
__FUNCTION__);
return 1;
}
}
i = 0;
can1->canctl0 = 0x01; /* enter init mode */
/* wait until init mode reached */
while (!(can1->canctl1 & 0x01)) {
udelay (10);
i++;
if (i == 10) {
printf ("%s: CAN1 initialize error, "
"can not enter init mode!\n",
__FUNCTION__);
return 1;
}
}
can1->canctl1 = 0x80;
can1->canctl1 |= 0x40;
can1->canbtr0 = 0x0F;
can1->canbtr1 = 0x7F;
can1->canidac &= ~(0x30);
can1->canidar1 = 0x00;
can1->canidar3 = 0x00;
can1->canidar5 = 0x00;
can1->canidar7 = 0x00;
can1->canidmr0 = 0xFF;
can1->canidmr1 = 0xFF;
can1->canidmr2 = 0xFF;
can1->canidmr3 = 0xFF;
can1->canidmr4 = 0xFF;
can1->canidmr5 = 0xFF;
can1->canidmr6 = 0xFF;
can1->canidmr7 = 0xFF;
i = 0;
can1->canctl0 &= ~(0x01); /* leave init mode */
can1->canctl0 &= ~(0x02);
/* wait until init and sleep mode left */
while ((can1->canctl1 & 0x01) || (can1->canctl1 & 0x02)) {
udelay (10);
i++;
if (i == 10) {
printf ("%s: CAN1 initialize error, "
"can not leave init/sleep mode!\n",
__FUNCTION__);
return 1;
}
}
/* init CAN 2 */
can2->canctl1 |= 0x80; /* CAN enable */
udelay (100);
i = 0;
can2->canctl0 |= 0x02; /* sleep mode */
/* wait until sleep mode reached */
while (!(can2->canctl1 & 0x02)) {
udelay (10);
i++;
if (i == 10) {
printf ("%s: CAN2 initialize error, "
"can not enter sleep mode!\n",
__FUNCTION__);
return 1;
}
}
i = 0;
can2->canctl0 = 0x01; /* enter init mode */
/* wait until init mode reached */
while (!(can2->canctl1 & 0x01)) {
udelay (10);
i++;
if (i == 10) {
printf ("%s: CAN2 initialize error, "
"can not enter init mode!\n",
__FUNCTION__);
return 1;
}
}
can2->canctl1 = 0x80;
can2->canctl1 |= 0x40;
can2->canbtr0 = 0x0F;
can2->canbtr1 = 0x7F;
can2->canidac &= ~(0x30);
can2->canidar1 = 0x00;
can2->canidar3 = 0x00;
can2->canidar5 = 0x00;
can2->canidar7 = 0x00;
can2->canidmr0 = 0xFF;
can2->canidmr1 = 0xFF;
can2->canidmr2 = 0xFF;
can2->canidmr3 = 0xFF;
can2->canidmr4 = 0xFF;
can2->canidmr5 = 0xFF;
can2->canidmr6 = 0xFF;
can2->canidmr7 = 0xFF;
can2->canctl0 &= ~(0x01); /* leave init mode */
can2->canctl0 &= ~(0x02);
i = 0;
/* wait until init mode left */
while ((can2->canctl1 & 0x01) || (can2->canctl1 & 0x02)) {
udelay (10);
i++;
if (i == 10) {
printf ("%s: CAN2 initialize error, "
"can not leave init/sleep mode!\n",
__FUNCTION__);
return 1;
}
}
init_done = 1;
}
return 0;
}
/*
* Do CAN test
* by sending message between CAN1 and CAN2
*
* return 1 on CAN failure
* return 0 if no failure
*/
int do_can (char * const argv[])
{
int i;
struct mpc5xxx_mscan *can1 =
(struct mpc5xxx_mscan *) (CONFIG_SYS_MBAR + 0x0900);
struct mpc5xxx_mscan *can2 =
(struct mpc5xxx_mscan *) (CONFIG_SYS_MBAR + 0x0980);
/* send a message on CAN1 */
can1->cantbsel = 0x01;
can1->cantxfg.idr[0] = 0x55;
can1->cantxfg.idr[1] = 0x00;
can1->cantxfg.idr[1] &= ~0x8;
can1->cantxfg.idr[1] &= ~0x10;
can1->cantxfg.dsr[0] = 0xCC;
can1->cantxfg.dlr = 1;
can1->cantxfg.tbpr = 0;
can1->cantflg = 0x01;
i = 0;
while ((can1->cantflg & 0x01) == 0) {
i++;
if (i == 10) {
printf ("%s: CAN1 send timeout, "
"can not send message!\n", __FUNCTION__);
return 1;
}
udelay (1000);
}
udelay (1000);
i = 0;
while (!(can2->canrflg & 0x01)) {
i++;
if (i == 10) {
printf ("%s: CAN2 receive timeout, "
"no message received!\n", __FUNCTION__);
return 1;
}
udelay (1000);
}
if (can2->canrxfg.dsr[0] != 0xCC) {
printf ("%s: CAN2 receive error, "
"data mismatch!\n", __FUNCTION__);
return 1;
}
/* send a message on CAN2 */
can2->cantbsel = 0x01;
can2->cantxfg.idr[0] = 0x55;
can2->cantxfg.idr[1] = 0x00;
can2->cantxfg.idr[1] &= ~0x8;
can2->cantxfg.idr[1] &= ~0x10;
can2->cantxfg.dsr[0] = 0xCC;
can2->cantxfg.dlr = 1;
can2->cantxfg.tbpr = 0;
can2->cantflg = 0x01;
i = 0;
while ((can2->cantflg & 0x01) == 0) {
i++;
if (i == 10) {
printf ("%s: CAN2 send error, "
"can not send message!\n", __FUNCTION__);
return 1;
}
udelay (1000);
}
udelay (1000);
i = 0;
while (!(can1->canrflg & 0x01)) {
i++;
if (i == 10) {
printf ("%s: CAN1 receive timeout, "
"no message received!\n", __FUNCTION__);
return 1;
}
udelay (1000);
}
if (can1->canrxfg.dsr[0] != 0xCC) {
printf ("%s: CAN1 receive error 0x%02x\n",
__FUNCTION__, (can1->canrxfg.dsr[0]));
return 1;
}
return 0;
}
#endif /* CONFIG_BC3450_CAN */
/*
* test - BC3450 HW test routines
*/
int cmd_test (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
{
#ifdef CONFIG_BC3450_CAN
int rcode;
can_init ();
#endif /* CONFIG_BC3450_CAN */
sm501_gpio_init ();
if (argc != 2) {
printf ("Usage:%s\n", cmdtp->help);
return 1;
}
if (strncmp (argv[1], "unit-off", 8) == 0) {
printf ("waiting 2 seconds...\n");
udelay (2000000);
*(vu_long *) (SM501_MMIO_BASE + SM501_GPIO_DATA_HIGH) &=
~PWR_OFF;
return 0;
}
#ifdef CONFIG_BC3450_CAN
else if (strncmp (argv[1], "can", 2) == 0) {
rcode = do_can (argv);
if (simple_strtoul (argv[2], NULL, 10) == 2) {
if (rcode == 0)
printf ("OK\n");
else
printf ("Error\n");
}
return rcode;
}
#endif /* CONFIG_BC3450_CAN */
printf ("Usage:%s\n", cmdtp->help);
return 1;
}
U_BOOT_CMD (test, 2, 1, cmd_test, "unit test routines", "\n"
#ifdef CONFIG_BC3450_CAN
"test can\n"
" - connect CAN1 (X8) with CAN2 (X9) for this test\n"
#endif /* CONFIG_BC3450_CAN */
"test unit-off\n"
" - turns off the BC3450 unit\n"
" WARNING: Unsaved environment variables will be lost!"
);
#endif

View file

@ -0,0 +1,34 @@
/*
* (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
*/
#define SDRAM_DDR 0 /* is SDR */
/* Settings for XLB = 132 MHz */
#define SDRAM_MODE 0x00CD0000
/* #define SDRAM_MODE 0x008D0000 */ /* CAS latency 2 */
#define SDRAM_CONTROL 0x504F0000
#define SDRAM_CONFIG1 0xD2322800
/* #define SDRAM_CONFIG1 0xD2222800 */ /* CAS latency 2 */
/*#define SDRAM_CONFIG1 0xD7322800 */ /* SDRAM controller bug workaround */
#define SDRAM_CONFIG2 0x8AD70000
/*#define SDRAM_CONFIG2 0xDDD70000 */ /* SDRAM controller bug workaround */