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Diffstat (limited to 'u-boot/board/innokom/innokom.c')
| -rw-r--r-- | u-boot/board/innokom/innokom.c | 197 |
1 files changed, 197 insertions, 0 deletions
diff --git a/u-boot/board/innokom/innokom.c b/u-boot/board/innokom/innokom.c new file mode 100644 index 0000000..e658c35 --- /dev/null +++ b/u-boot/board/innokom/innokom.c @@ -0,0 +1,197 @@ +/* + * (C) Copyright 2002 + * Robert Schwebel, Pengutronix, r.schwebel@pengutronix.de + * Kyle Harris, Nexus Technologies, Inc., kharris@nexus-tech.net + * Marius Groeger, Sysgo Real-Time Solutions GmbH, mgroeger@sysgo.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 <netdev.h> +#include <asm/arch/pxa-regs.h> +#include <asm/mach-types.h> +#include <asm/io.h> + +DECLARE_GLOBAL_DATA_PTR; + +#ifdef CONFIG_SHOW_BOOT_PROGRESS +# define SHOW_BOOT_PROGRESS(arg) show_boot_progress(arg) +#else +# define SHOW_BOOT_PROGRESS(arg) +#endif + +/** + * i2c_init_board - reset i2c bus. When the board is powercycled during a + * bus transfer it might hang; for details see doc/I2C_Edge_Conditions. + * The Innokom board has GPIO70 connected to SCLK which can be toggled + * until all chips think that their current cycles are finished. + */ +int i2c_init_board(void) +{ + int i, icr; + + /* disable I2C controller first, otherwhise it thinks we want to */ + /* talk to the slave port... */ + icr = readl(ICR); + writel(readl(ICR) & ~(ICR_SCLE | ICR_IUE), ICR); + + /* set gpio pin low _before_ we change direction to output */ + writel(GPIO_bit(70), GPCR(70)); + + /* now toggle between output=low and high-impedance */ + for (i = 0; i < 20; i++) { + writel(readl(GPDR(70)) | GPIO_bit(70), GPDR(70)); /* output */ + udelay(10); + writel(readl(GPDR(70)) & ~GPIO_bit(70), GPDR(70)); /* input */ + udelay(10); + } + + writel(icr, ICR); + + return 0; +} + + +/** + * misc_init_r: - misc initialisation routines + */ + +int misc_init_r(void) +{ + char *str; + + /* determine if the software update key is pressed during startup */ + if (readl(GPLR0) & 0x00000800) { + printf("using bootcmd_normal (sw-update button not pressed)\n"); + str = getenv("bootcmd_normal"); + } else { + printf("using bootcmd_update (sw-update button pressed)\n"); + str = getenv("bootcmd_update"); + } + + setenv("bootcmd",str); + + return 0; +} + + +/** + * board_init: - setup some data structures + * + * @return: 0 in case of success + */ + +int board_init (void) +{ + /* We have RAM, disable cache */ + dcache_disable(); + icache_disable(); + + gd->bd->bi_arch_number = MACH_TYPE_INNOKOM; + gd->bd->bi_boot_params = 0xa0000100; + gd->bd->bi_baudrate = CONFIG_BAUDRATE; + + return 0; +} + +extern void pxa_dram_init(void); +int dram_init(void) +{ + pxa_dram_init(); + gd->ram_size = PHYS_SDRAM_1_SIZE; + return 0; +} + +void dram_init_banksize(void) +{ + gd->bd->bi_dram[0].start = PHYS_SDRAM_1; + gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE; +} + +/** + * innokom_set_led: - switch LEDs on or off + * + * @param led: LED to switch (0,1,2) + * @param state: switch on (1) or off (0) + */ + +void innokom_set_led(int led, int state) +{ + switch(led) { +/* + case 0: if (state==1) { + GPCR0 |= CSB226_USER_LED0; + } else if (state==0) { + GPSR0 |= CSB226_USER_LED0; + } + break; + + case 1: if (state==1) { + GPCR0 |= CSB226_USER_LED1; + } else if (state==0) { + GPSR0 |= CSB226_USER_LED1; + } + break; + + case 2: if (state==1) { + GPCR0 |= CSB226_USER_LED2; + } else if (state==0) { + GPSR0 |= CSB226_USER_LED2; + } + break; +*/ + } + + return; +} + + +/** + * show_boot_progress: - indicate state of the boot process + * + * @param status: Status number - see README for details. + * + * The CSB226 does only have 3 LEDs, so we switch them on at the most + * important states (1, 5, 15). + */ + +void show_boot_progress (int status) +{ + switch(status) { +/* + case 1: csb226_set_led(0,1); break; + case 5: csb226_set_led(1,1); break; + case 15: csb226_set_led(2,1); break; +*/ + } + + return; +} + +#ifdef CONFIG_CMD_NET +int board_eth_init(bd_t *bis) +{ + int rc = 0; +#ifdef CONFIG_SMC91111 + rc = smc91111_initialize(0, CONFIG_SMC91111_BASE); +#endif + return rc; +} +#endif |