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Diffstat (limited to 'board/trab/trab.c')
| -rw-r--r-- | board/trab/trab.c | 436 |
1 files changed, 0 insertions, 436 deletions
diff --git a/board/trab/trab.c b/board/trab/trab.c deleted file mode 100644 index 0f74e8f..0000000 --- a/board/trab/trab.c +++ /dev/null @@ -1,436 +0,0 @@ -/* - * (C) Copyright 2002 - * Gary Jennejohn, DENX Software Engineering, <garyj@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 - */ - -/* #define DEBUG */ - -#include <common.h> -#include <netdev.h> -#include <malloc.h> -#include <asm/arch/s3c24x0_cpu.h> -#include <command.h> - -DECLARE_GLOBAL_DATA_PTR; - -#ifdef CONFIG_SYS_BRIGHTNESS -static void spi_init(void); -static void wait_transmit_done(void); -static void tsc2000_write(unsigned int page, unsigned int reg, - unsigned int data); -static void tsc2000_set_brightness(void); -#endif -#ifdef CONFIG_MODEM_SUPPORT -static int key_pressed(void); -extern void disable_putc(void); -extern int do_mdm_init; /* defined in common/main.c */ - -/* - * We need a delay of at least 500 us after turning on the VFD clock - * before we can read any useful information for the CPLD controlling - * the keyboard switches. Let's play safe and wait 5 ms. The problem - * is that timers are not available yet, so we use a manually timed - * loop. - */ -#define KBD_MDELAY 5000 -static void udelay_no_timer (int usec) -{ - int i; - int delay = usec * 3; - - for (i = 0; i < delay; i ++) gd->bd->bi_arch_number = MACH_TYPE_TRAB; -} -#endif /* CONFIG_MODEM_SUPPORT */ - -/* - * Miscellaneous platform dependent initialisations - */ - -int board_init () -{ -#if defined(CONFIG_VFD) - extern int vfd_init_clocks(void); -#endif - struct s3c24x0_clock_power * const clk_power = - s3c24x0_get_base_clock_power(); - struct s3c24x0_gpio * const gpio = s3c24x0_get_base_gpio(); - - /* memory and cpu-speed are setup before relocation */ -#ifdef CONFIG_TRAB_50MHZ - /* change the clock to be 50 MHz 1:1:1 */ - /* MDIV:0x5c PDIV:4 SDIV:2 */ - clk_power->mpllcon = 0x5c042; - clk_power->clkdivn = 0; -#else - /* change the clock to be 133 MHz 1:2:4 */ - /* MDIV:0x7d PDIV:4 SDIV:1 */ - clk_power->mpllcon = 0x7d041; - clk_power->clkdivn = 3; -#endif - - /* set up the I/O ports */ - gpio->pacon = 0x3ffff; - gpio->pbcon = 0xaaaaaaaa; - gpio->pbup = 0xffff; - /* INPUT nCTS0 nRTS0 TXD[1] TXD[0] RXD[1] RXD[0] */ - /* 00, 10, 10, 10, 10, 10, 10 */ - gpio->pfcon = (2<<0) | (2<<2) | (2<<4) | (2<<6) | (2<<8) | (2<<10); -#ifdef CONFIG_HWFLOW - /* do not pull up RXD0, RXD1, TXD0, TXD1, CTS0, RTS0 */ - gpio->pfup = (1<<0) | (1<<1) | (1<<2) | (1<<3) | (1<<4) | (1<<5); -#else - /* do not pull up RXD0, RXD1, TXD0, TXD1 */ - gpio->pfup = (1<<0) | (1<<1) | (1<<2) | (1<<3); -#endif - gpio->pgcon = 0x0; - gpio->pgup = 0x0; - gpio->opencr = 0x0; - - /* suppress flicker of the VFDs */ - gpio->misccr = 0x40; - gpio->pfcon |= (2<<12); - - gd->bd->bi_arch_number = MACH_TYPE_TRAB; - - /* adress of boot parameters */ - gd->bd->bi_boot_params = 0x0c000100; - - /* Make sure both buzzers are turned off */ - gpio->pdcon |= 0x5400; - gpio->pddat &= ~0xE0; - -#ifdef CONFIG_VFD - vfd_init_clocks(); -#endif /* CONFIG_VFD */ - -#ifdef CONFIG_MODEM_SUPPORT - udelay_no_timer (KBD_MDELAY); - - if (key_pressed()) { - disable_putc(); /* modem doesn't understand banner etc */ - do_mdm_init = 1; - } -#endif /* CONFIG_MODEM_SUPPORT */ - -#ifdef CONFIG_DRIVER_S3C24X0_I2C - /* Configure I/O ports PG5 und PG6 for I2C */ - gpio->pgcon = (gpio->pgcon & 0x003c00) | 0x003c00; -#endif /* CONFIG_DRIVER_S3C24X0_I2C */ - - return 0; -} - -int dram_init (void) -{ - gd->bd->bi_dram[0].start = PHYS_SDRAM_1; - gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE; - return 0; -} - -/*----------------------------------------------------------------------- - * Keyboard Controller - */ - -/* Maximum key number */ -#define KEYBD_KEY_NUM 4 - -#define KBD_DATA (((*(volatile ulong *)0x04020000) >> 16) & 0xF) - -static char *key_match (ulong); - -int misc_init_r (void) -{ - ulong kbd_data = KBD_DATA; - char *str; - char keybd_env[KEYBD_KEY_NUM + 1]; - int i; - -#ifdef CONFIG_VERSION_VARIABLE - { - /* Set version variable. Please note, that this variable is - * also set in main_loop() later in the boot process. The - * version variable has to be set this early, because so it - * could be used in script files on an usb stick, which - * might be called during do_auto_update() */ - extern char version_string[]; - - setenv ("ver", version_string); - } -#endif /* CONFIG_VERSION_VARIABLE */ - -#ifdef CONFIG_AUTO_UPDATE - { - extern int do_auto_update(void); - /* this has priority over all else */ - do_auto_update(); - } -#endif - - for (i = 0; i < KEYBD_KEY_NUM; ++i) { - keybd_env[i] = '0' + ((kbd_data >> i) & 1); - } - keybd_env[i] = '\0'; - debug ("** Setting keybd=\"%s\"\n", keybd_env); - setenv ("keybd", keybd_env); - - str = strdup (key_match (kbd_data)); /* decode keys */ - -#ifdef CONFIG_PREBOOT /* automatically configure "preboot" command on key match */ - debug ("** Setting preboot=\"%s\"\n", str); - setenv ("preboot", str); /* set or delete definition */ -#endif /* CONFIG_PREBOOT */ - if (str != NULL) { - free (str); - } - -#ifdef CONFIG_SYS_BRIGHTNESS - tsc2000_set_brightness(); -#endif - return (0); -} - -#ifdef CONFIG_PREBOOT - -static uchar kbd_magic_prefix[] = "key_magic"; -static uchar kbd_command_prefix[] = "key_cmd"; - -static int compare_magic (ulong kbd_data, char *str) -{ - uchar key_mask; - - debug ("compare_magic: kbd: %04lx str: \"%s\"\n",kbd_data,str); - for (; *str; str++) - { - uchar c = *str - '1'; - - if (c >= KEYBD_KEY_NUM) /* bad key number */ - return -1; - - key_mask = 1 << c; - - if (!(kbd_data & key_mask)) { /* key not pressed */ - debug ( "compare_magic: " - "kbd: %04lx mask: %04lx - key not pressed\n", - kbd_data, key_mask ); - return -1; - } - - kbd_data &= ~key_mask; - } - - if (kbd_data) { /* key(s) not released */ - debug ( "compare_magic: " - "kbd: %04lx - key(s) not released\n", kbd_data); - return -1; - } - - return 0; -} - -/*----------------------------------------------------------------------- - * Check if pressed key(s) match magic sequence, - * and return the command string associated with that key(s). - * - * If no key press was decoded, NULL is returned. - * - * Note: the first character of the argument will be overwritten with - * the "magic charcter code" of the decoded key(s), or '\0'. - * - * - * Note: the string points to static environment data and must be - * saved before you call any function that modifies the environment. - */ -static char *key_match (ulong kbd_data) -{ - char magic[sizeof (kbd_magic_prefix) + 1]; - char cmd_name[sizeof (kbd_command_prefix) + 1]; - char *suffix; - char *kbd_magic_keys; - - /* - * The following string defines the characters that can pe appended - * to "key_magic" to form the names of environment variables that - * hold "magic" key codes, i. e. such key codes that can cause - * pre-boot actions. If the string is empty (""), then only - * "key_magic" is checked (old behaviour); the string "125" causes - * checks for "key_magic1", "key_magic2" and "key_magic5", etc. - */ - if ((kbd_magic_keys = getenv ("magic_keys")) == NULL) - kbd_magic_keys = ""; - - debug ("key_match: magic_keys=\"%s\"\n", kbd_magic_keys); - - /* loop over all magic keys; - * use '\0' suffix in case of empty string - */ - for (suffix=kbd_magic_keys; *suffix || suffix==kbd_magic_keys; ++suffix) - { - sprintf (magic, "%s%c", kbd_magic_prefix, *suffix); - - debug ("key_match: magic=\"%s\"\n", - getenv(magic) ? getenv(magic) : "<UNDEFINED>"); - - if (compare_magic(kbd_data, getenv(magic)) == 0) - { - sprintf (cmd_name, "%s%c", kbd_command_prefix, *suffix); - debug ("key_match: cmdname %s=\"%s\"\n", - cmd_name, - getenv (cmd_name) ? - getenv (cmd_name) : - "<UNDEFINED>"); - return (getenv (cmd_name)); - } - } - debug ("key_match: no match\n"); - return (NULL); -} -#endif /* CONFIG_PREBOOT */ - -/* Read Keyboard status */ -int do_kbd (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]) -{ - ulong kbd_data = KBD_DATA; - char keybd_env[KEYBD_KEY_NUM + 1]; - int i; - - puts ("Keys:"); - for (i = 0; i < KEYBD_KEY_NUM; ++i) { - keybd_env[i] = '0' + ((kbd_data >> i) & 1); - printf (" %c", keybd_env[i]); - } - keybd_env[i] = '\0'; - putc ('\n'); - setenv ("keybd", keybd_env); - return 0; -} - -U_BOOT_CMD( - kbd, 1, 1, do_kbd, - "read keyboard status", - "" -); - -#ifdef CONFIG_MODEM_SUPPORT -static int key_pressed(void) -{ - return (compare_magic(KBD_DATA, CONFIG_MODEM_KEY_MAGIC) == 0); -} -#endif /* CONFIG_MODEM_SUPPORT */ - -#ifdef CONFIG_SYS_BRIGHTNESS - -static inline void SET_CS_TOUCH(void) -{ - struct s3c24x0_gpio * const gpio = s3c24x0_get_base_gpio(); - - gpio->pddat &= 0x5FF; -} - -static inline void CLR_CS_TOUCH(void) -{ - struct s3c24x0_gpio * const gpio = s3c24x0_get_base_gpio(); - - gpio->pddat |= 0x200; -} - -static void spi_init(void) -{ - struct s3c24x0_gpio * const gpio = s3c24x0_get_base_gpio(); - struct s3c24x0_spi * const spi = s3c24x0_get_base_spi(); - int i; - - /* Configure I/O ports. */ - gpio->pdcon = (gpio->pdcon & 0xF3FFFF) | 0x040000; - gpio->pgcon = (gpio->pgcon & 0x0F3FFF) | 0x008000; - gpio->pgcon = (gpio->pgcon & 0x0CFFFF) | 0x020000; - gpio->pgcon = (gpio->pgcon & 0x03FFFF) | 0x080000; - - CLR_CS_TOUCH(); - - spi->ch[0].sppre = 0x1F; /* Baudrate ca. 514kHz */ - spi->ch[0].sppin = 0x01; /* SPI-MOSI holds Level after last bit */ - spi->ch[0].spcon = 0x1A; /* Polling, Prescale, Master, CPOL=0, CPHA=1 */ - - /* Dummy byte ensures clock to be low. */ - for (i = 0; i < 10; i++) { - spi->ch[0].sptdat = 0xFF; - } - wait_transmit_done(); -} - -static void wait_transmit_done(void) -{ - struct s3c24x0_spi * const spi = s3c24x0_get_base_spi(); - - while (!(spi->ch[0].spsta & 0x01)) /* wait until transfer is done */ - ; -} - -static void tsc2000_write(unsigned int page, unsigned int reg, - unsigned int data) -{ - struct s3c24x0_spi * const spi = s3c24x0_get_base_spi(); - unsigned int command; - - SET_CS_TOUCH(); - command = 0x0000; - command |= (page << 11); - command |= (reg << 5); - - spi->ch[0].sptdat = (command & 0xFF00) >> 8; - wait_transmit_done(); - spi->ch[0].sptdat = (command & 0x00FF); - wait_transmit_done(); - spi->ch[0].sptdat = (data & 0xFF00) >> 8; - wait_transmit_done(); - spi->ch[0].sptdat = (data & 0x00FF); - wait_transmit_done(); - - CLR_CS_TOUCH(); -} - -static void tsc2000_set_brightness(void) -{ - char tmp[10]; - int i, br; - - spi_init(); - tsc2000_write(1, 2, 0x0); /* Power up DAC */ - - i = getenv_f("brightness", tmp, sizeof(tmp)); - br = (i > 0) - ? (int) simple_strtoul (tmp, NULL, 10) - : CONFIG_SYS_BRIGHTNESS; - - tsc2000_write(0, 0xb, br & 0xff); -} -#endif - -#ifdef CONFIG_CMD_NET -int board_eth_init(bd_t *bis) -{ - int rc = 0; -#ifdef CONFIG_CS8900 - rc = cs8900_initialize(0, CONFIG_CS8900_BASE); -#endif - return rc; -} -#endif |