diff options
Diffstat (limited to 'board/samsung/smdk2400/smdk2400.c')
| -rw-r--r-- | board/samsung/smdk2400/smdk2400.c | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/board/samsung/smdk2400/smdk2400.c b/board/samsung/smdk2400/smdk2400.c new file mode 100644 index 0000000..4d1f1a6 --- /dev/null +++ b/board/samsung/smdk2400/smdk2400.c @@ -0,0 +1,112 @@ +/* + * (C) Copyright 2002 + * Sysgo Real-Time Solutions, GmbH <www.elinos.com> + * Marius Groeger <mgroeger@sysgo.de> + * + * (C) Copyright 2002 + * Gary Jennejohn, DENX Software Engineering, <gj@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 <common.h> +#include <s3c2400.h> + +DECLARE_GLOBAL_DATA_PTR; + +#ifdef CONFIG_MODEM_SUPPORT +static int key_pressed(void); +int mdm_init (bd_t *); +extern void disable_putc(void); +extern void enable_putc(void); +extern int hwflow_onoff(int); +extern int do_mdm_init; /* defined in common/main.c */ +#endif /* CONFIG_MODEM_SUPPORT */ + +/* + * Miscellaneous platform dependent initialisations + */ + +int board_init (void) +{ + S3C24X0_CLOCK_POWER * const clk_power = S3C24X0_GetBase_CLOCK_POWER(); + S3C24X0_GPIO * const gpio = S3C24X0_GetBase_GPIO(); + + /* memory and cpu-speed are setup before relocation */ + /* change the clock to be 50 MHz 1:1:1 */ + clk_power->MPLLCON = 0x5c042; + clk_power->CLKDIVN = 0; + /* set up the I/O ports */ + gpio->PACON = 0x3ffff; + gpio->PBCON = 0xaaaaaaaa; + gpio->PBUP = 0xffff; + gpio->PECON = 0x0; + gpio->PEUP = 0x0; +#ifdef CONFIG_HWFLOW + /*CTS[0] RTS[0] INPUT INPUT TXD[0] INPUT RXD[0] */ + /* 10, 10, 00, 00, 10, 00, 10 */ + gpio->PFCON=0xa22; + /* Disable pull-up on Rx, Tx, CTS and RTS pins */ + gpio->PFUP=0x35; +#else + /*INPUT INPUT INPUT INPUT TXD[0] INPUT RXD[0] */ + /* 00, 00, 00, 00, 10, 00, 10 */ + gpio->PFCON = 0x22; + /* Disable pull-up on Rx and Tx pins */ + gpio->PFUP = 0x5; +#endif /* CONFIG_HWFLOW */ + gpio->PGCON = 0x0; + gpio->PGUP = 0x0; + gpio->OPENCR = 0x0; + + /* arch number of SAMSUNG-Board to MACH_TYPE_SMDK2400 */ + gd->bd->bi_arch_number = MACH_TYPE_SMDK2400; + + /* adress of boot parameters */ + gd->bd->bi_boot_params = 0x0C000100; + +#ifdef CONFIG_MODEM_SUPPORT + if (key_pressed()) { + disable_putc(); /* modem doesn't understand banner etc */ + do_mdm_init = 1; + } +#endif /* CONFIG_MODEM_SUPPORT */ + + 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; +} + +#ifdef CONFIG_MODEM_SUPPORT +static int key_pressed(void) +{ + int rc; + if (1) { /* check for button push here, now just return 1 */ + rc = 1; + } + + return rc; +} +#endif /* CONFIG_MODEM_SUPPORT */ |