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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/tqm5200/tqm5200.c

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/*
* (C) Copyright 2003-2006
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* (C) Copyright 2004
* Mark Jonas, Freescale Semiconductor, mark.jonas@motorola.com.
*
* (C) Copyright 2004-2006
* 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 <mpc5xxx.h>
#include <pci.h>
#include <asm/processor.h>
#include <libfdt.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_OF_LIBFDT
#include <fdt_support.h>
#endif /* CONFIG_OF_LIBFDT */
DECLARE_GLOBAL_DATA_PTR;
#ifdef CONFIG_PS2MULT
void ps2mult_early_init(void);
#endif
#ifndef CFG_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 CFG_SDRAM_BASE. The code does not work if CFG_SDRAM_BASE
* is something else than 0x00000000.
*/
long int initdram (int board_type)
{
ulong dramsize = 0;
ulong dramsize2 = 0;
uint svr, pvr;
#ifndef CFG_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 *)CFG_SDRAM_BASE, 0x20000000);
sdram_start(1);
test2 = get_ram_size((long *)CFG_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 */
if (!dramsize)
sdram_start(0);
test2 = test1 = get_ram_size((long *)(CFG_SDRAM_BASE + dramsize), 0x20000000);
if (!dramsize) {
sdram_start(1);
test2 = get_ram_size((long *)(CFG_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 /* CFG_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 /* CFG_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)) {
*(vu_long *)MPC5XXX_SDRAM_SDELAY = 0x04;
__asm__ volatile ("sync");
}
#if defined(CONFIG_TQM5200_B)
return dramsize + dramsize2;
#else
return dramsize;
#endif /* CONFIG_TQM5200_B */
}
int checkboard (void)
{
#if defined(CONFIG_AEVFIFO)
puts ("Board: AEVFIFO\n");
return 0;
#endif
#if defined(CONFIG_TQM5200S)
# define MODULE_NAME "TQM5200S"
#else
# define MODULE_NAME "TQM5200"
#endif
#if defined(CONFIG_STK52XX)
# define CARRIER_NAME "STK52xx"
#elif defined(CONFIG_TB5200)
# define CARRIER_NAME "TB5200"
#elif defined(CONFIG_CAM5200)
# define CARRIER_NAME "CAM5200"
#elif defined(CONFIG_FO300)
# define CARRIER_NAME "FO300"
#else
# error "UNKNOWN"
#endif
puts ( "Board: " MODULE_NAME " (TQ-Components GmbH)\n"
" on a " CARRIER_NAME " carrier board\n");
return 0;
}
#undef MODULE_NAME
#undef CARRIER_NAME
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)
#if defined (CONFIG_MINIFAP)
#define SM501_POWER_MODE0_GATE 0x00000040UL
#define SM501_POWER_MODE1_GATE 0x00000048UL
#define POWER_MODE_GATE_GPIO_PWM_I2C 0x00000040UL
#define SM501_GPIO_DATA_DIR_HIGH 0x0001000CUL
#define SM501_GPIO_DATA_HIGH 0x00010004UL
#define SM501_GPIO_51 0x00080000UL
#endif /* CONFIG MINIFAP */
void init_ide_reset (void)
{
debug ("init_ide_reset\n");
#if defined (CONFIG_MINIFAP)
/* Configure GPIO_51 of the SM501 grafic controller as ATA reset */
/* enable 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;
/* configure GPIO51 as output */
*(vu_long *) (SM501_MMIO_BASE+SM501_GPIO_DATA_DIR_HIGH) |=
SM501_GPIO_51;
#else
/* 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;
/* by default the ATA reset is de-asserted */
*(vu_long *) MPC5XXX_WU_GPIO_DATA_O |= GPIO_PSC1_4;
#endif
}
void ide_set_reset (int idereset)
{
debug ("ide_reset(%d)\n", idereset);
#if defined (CONFIG_MINIFAP)
if (idereset) {
*(vu_long *) (SM501_MMIO_BASE+SM501_GPIO_DATA_HIGH) &=
~SM501_GPIO_51;
} else {
*(vu_long *) (SM501_MMIO_BASE+SM501_GPIO_DATA_HIGH) |=
SM501_GPIO_51;
}
#else
if (idereset) {
*(vu_long *) MPC5XXX_WU_GPIO_DATA_O &= ~GPIO_PSC1_4;
} else {
*(vu_long *) MPC5XXX_WU_GPIO_DATA_O |= GPIO_PSC1_4;
}
#endif
}
#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)
{
#ifdef CONFIG_STK52XX
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);
#else
return 0;
#endif
}
#endif
#if defined(CONFIG_POST) || defined(CONFIG_LOGBUFFER)
void post_word_store (ulong a)
{
volatile ulong *save_addr =
(volatile ulong *)(MPC5XXX_SRAM + MPC5XXX_SRAM_POST_SIZE);
*save_addr = a;
}
ulong post_word_load (void)
{
volatile ulong *save_addr =
(volatile ulong *)(MPC5XXX_SRAM + MPC5XXX_SRAM_POST_SIZE);
return *save_addr;
}
#endif /* CONFIG_POST || CONFIG_LOGBUFFER*/
#ifdef CONFIG_BOARD_EARLY_INIT_R
int board_early_init_r (void)
{
extern int usb_cpu_init(void);
#ifdef CONFIG_PS2MULT
ps2mult_early_init();
#endif /* CONFIG_PS2MULT */
#if defined(CONFIG_USB_OHCI_NEW) && defined(CFG_USB_OHCI_CPU_INIT)
/* Low level USB init, required for proper kernel operation */
usb_cpu_init();
#endif
return (0);
}
#endif
#ifdef CONFIG_FO300
int silent_boot (void)
{
vu_long timer3_status;
/* Configure GPT3 as GPIO input */
*(vu_long *)MPC5XXX_GPT3_ENABLE = 0x00000004;
/* Read in TIMER_3 pin status */
timer3_status = *(vu_long *)MPC5XXX_GPT3_STATUS;
#ifdef FO300_SILENT_CONSOLE_WHEN_S1_CLOSED
/* Force silent console mode if S1 switch
* is in closed position (TIMER_3 pin status is LOW). */
if (MPC5XXX_GPT_GPIO_PIN(timer3_status) == 0)
return 1;
#else
/* Force silent console mode if S1 switch
* is in open position (TIMER_3 pin status is HIGH). */
if (MPC5XXX_GPT_GPIO_PIN(timer3_status) == 1)
return 1;
#endif
return 0;
}
int board_early_init_f (void)
{
if (silent_boot())
gd->flags |= GD_FLG_SILENT;
return 0;
}
#endif /* CONFIG_FO300 */
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 *)CFG_CS2_START;
restore = 1;
/* write test pattern to SRAM */
*(volatile u16 *)CFG_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 *)CFG_FLASH_BASE;
if (tmp == 0xA5A5)
puts ("!! possible error in SRAM detection\n");
if (*(volatile u16 *)CFG_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 *)(CFG_CS2_START + (1<<19)) == 0xA5A5) {
/* make sure that we access a mirrored address */
*(volatile u16 *)CFG_CS2_START = 0x1111;
__asm__ volatile ("sync");
if (*(volatile u16 *)(CFG_CS2_START + (1<<19)) == 0x1111) {
/* SRAM size = 512 kByte */
*(vu_long *)MPC5XXX_CS2_STOP = STOP_REG(CFG_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 *)CFG_CS2_START = save;
__asm__ volatile ("sync");
}
#ifndef CONFIG_TQM5200S /* The TQM5200S has no SM501 grafic controller */
/*
* Check for Grafic Controller
*/
/* save origianl FB content */
save = *(volatile u16 *)CFG_CS1_START;
restore = 1;
/* write test pattern to FB memory */
*(volatile u16 *)CFG_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 *)CFG_FLASH_BASE;
if (tmp == 0xA5A5)
puts ("!! possible error in grafic controller detection\n");
if (*(volatile u16 *)CFG_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 *)CFG_CS1_START = save;
__asm__ volatile ("sync");
}
#ifdef CONFIG_FO300
if (silent_boot()) {
setenv("bootdelay", "0");
disable_ctrlc(1);
}
#endif
#endif /* !CONFIG_TQM5200S */
return 0;
}
#ifdef CONFIG_VIDEO_SM501
#ifdef CONFIG_FO300
#define DISPLAY_WIDTH 800
#else
#define DISPLAY_WIDTH 640
#endif
#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 0 /* 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 */
#ifdef CONFIG_FO300
{0x00004, 0x0},
{0x00048, 0x00021807},
{0x0004C, 0x301a0a01},
{0x00054, 0x1},
{0x00040, 0x00021807},
{0x00044, 0x091a0a01},
{0x00054, 0x0},
{0x80000, 0x0f013106},
{0x80004, 0xc428bb17},
{0x8000C, 0x00000000},
{0x80010, 0x0C800C80},
{0x80014, 0x03200000},
{0x80018, 0x01e00000},
{0x8001C, 0x00000000},
{0x80020, 0x01e00320},
{0x80024, 0x042a031f},
{0x80028, 0x0086034a},
{0x8002C, 0x020c01df},
{0x80030, 0x000201ea},
{0x80200, 0x00010000},
#else
{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 /* #ifdef CONFIG_FO300 */
#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) {
strcpy (info, " Board: TQM5200 (TQ-Components GmbH)");
#if defined (CONFIG_STK52XX) || defined (CONFIG_TB5200) || defined(CONFIG_FO300)
} else if (line_number == 2) {
#if defined (CONFIG_STK52XX)
strcpy (info, " on a STK52xx carrier board");
#endif
#if defined (CONFIG_TB5200)
strcpy (info, " on a TB5200 carrier board");
#endif
#if defined (CONFIG_FO300)
strcpy (info, " on a FO300 carrier board");
#endif
#endif
}
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 *)CFG_CS1_START;
restore = 1;
/* write test pattern to FB memory */
*(volatile u16 *)CFG_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 *)CFG_FLASH_BASE;
if (tmp == 0xA5A5)
puts ("!! possible error in grafic controller detection\n");
if (*(volatile u16 *)CFG_CS1_START != 0xA5A5) {
/* no grafic controller found */
restore = 0;
ret = 0;
} else {
ret = SM501_MMIO_BASE;
}
if (restore) {
*(volatile u16 *)CFG_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 */
#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
void ft_board_setup(void *blob, bd_t *bd)
{
ft_cpu_setup(blob, bd);
fdt_fixup_memory(blob, (u64)bd->bi_memstart, (u64)bd->bi_memsize);
}
#endif /* defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) */