diff options
Diffstat (limited to 'board/esd/voh405')
| -rw-r--r-- | board/esd/voh405/voh405.c | 135 |
1 files changed, 116 insertions, 19 deletions
diff --git a/board/esd/voh405/voh405.c b/board/esd/voh405/voh405.c index 2857a0be..87a5849 100644 --- a/board/esd/voh405/voh405.c +++ b/board/esd/voh405/voh405.c @@ -22,6 +22,7 @@ */ #include <common.h> +#include <asm/io.h> #include <asm/processor.h> #include <command.h> #include <malloc.h> @@ -112,11 +113,11 @@ int misc_init_f (void) int misc_init_r (void) { - volatile unsigned char *duart0_mcr = (unsigned char *)((ulong)DUART0_BA + 4); - volatile unsigned char *duart1_mcr = (unsigned char *)((ulong)DUART1_BA + 4); - volatile unsigned short *lcd_contrast = + unsigned char *duart0_mcr = (unsigned char *)((ulong)DUART0_BA + 4); + unsigned char *duart1_mcr = (unsigned char *)((ulong)DUART1_BA + 4); + unsigned short *lcd_contrast = (unsigned short *)((ulong)CFG_FPGA_BASE_ADDR + CFG_FPGA_CTRL + 4); - volatile unsigned short *lcd_backlight = + unsigned short *lcd_backlight = (unsigned short *)((ulong)CFG_FPGA_BASE_ADDR + CFG_FPGA_CTRL + 6); unsigned char *dst; ulong len = sizeof(fpgadata); @@ -180,25 +181,37 @@ int misc_init_r (void) /* * Reset FPGA via FPGA_INIT pin */ - out32(GPIO0_TCR, in32(GPIO0_TCR) | FPGA_INIT); /* setup FPGA_INIT as output */ - out32(GPIO0_OR, in32(GPIO0_OR) & ~FPGA_INIT); /* reset low */ + out_be32((void*)GPIO0_TCR, in_be32((void*)GPIO0_TCR) | FPGA_INIT); /* setup FPGA_INIT as output */ + out_be32((void*)GPIO0_OR, in_be32((void*)GPIO0_OR) & ~FPGA_INIT); /* reset low */ udelay(1000); /* wait 1ms */ - out32(GPIO0_OR, in32(GPIO0_OR) | FPGA_INIT); /* reset high */ + out_be32((void*)GPIO0_OR, in_be32((void*)GPIO0_OR) | FPGA_INIT); /* reset high */ udelay(1000); /* wait 1ms */ /* * Reset external DUARTs */ - out32(GPIO0_OR, in32(GPIO0_OR) | CFG_DUART_RST); /* set reset to high */ + out_be32((void*)GPIO0_OR, in_be32((void*)GPIO0_OR) | CFG_DUART_RST); /* set reset to high */ udelay(10); /* wait 10us */ - out32(GPIO0_OR, in32(GPIO0_OR) & ~CFG_DUART_RST); /* set reset to low */ + out_be32((void*)GPIO0_OR, in_be32((void*)GPIO0_OR) & ~CFG_DUART_RST); /* set reset to low */ udelay(1000); /* wait 1ms */ /* + * Set NAND-FLASH GPIO signals to default + */ + out_be32((void*)GPIO0_OR, in_be32((void*)GPIO0_OR) & ~(CFG_NAND_CLE | CFG_NAND_ALE)); + out_be32((void*)GPIO0_OR, in_be32((void*)GPIO0_OR) | CFG_NAND_CE); + + /* + * Setup EEPROM write protection + */ + out_be32((void*)GPIO0_OR, in_be32((void*)GPIO0_OR) | CFG_EEPROM_WP); + out_be32((void*)GPIO0_TCR, in_be32((void*)GPIO0_TCR) | CFG_EEPROM_WP); + + /* * Enable interrupts in exar duart mcr[3] */ - *duart0_mcr = 0x08; - *duart1_mcr = 0x08; + out_8(duart0_mcr, 0x08); + out_8(duart1_mcr, 0x08); /* * Init lcd interface and display logo @@ -240,17 +253,23 @@ int misc_init_r (void) /* * Set invert bit in small lcd controller */ - *(unsigned char *)(CFG_LCD_SMALL_REG + 2) |= 0x01; + out_8((unsigned char *)(CFG_LCD_SMALL_REG + 2), + in_8((unsigned char *)(CFG_LCD_SMALL_REG + 2)) | 0x01); /* * Set default contrast voltage on epson vga controller */ - *lcd_contrast = 0x4646; + out_be16(lcd_contrast, 0x4646); /* * Enable backlight */ - *lcd_backlight = 0xffff; + out_be16(lcd_backlight, 0xffff); + + /* + * Enable external I2C bus + */ + out_be32((void*)GPIO0_TCR, in_be32((void*)GPIO0_TCR) | CFG_IIC_ON); return (0); } @@ -281,11 +300,6 @@ int checkboard (void) putc ('\n'); - /* - * Disable sleep mode in LXT971 - */ - lxt971_no_sleep(); - return 0; } @@ -334,3 +348,86 @@ void ide_set_reset(int on) } } #endif /* CONFIG_IDE_RESET */ + +#if defined(CONFIG_RESET_PHY_R) +void reset_phy(void) +{ +#ifdef CONFIG_LXT971_NO_SLEEP + + /* + * Disable sleep mode in LXT971 + */ + lxt971_no_sleep(); +#endif +} +#endif + +#if defined(CFG_EEPROM_WREN) +/* Input: <dev_addr> I2C address of EEPROM device to enable. + * <state> -1: deliver current state + * 0: disable write + * 1: enable write + * Returns: -1: wrong device address + * 0: dis-/en- able done + * 0/1: current state if <state> was -1. + */ +int eeprom_write_enable (unsigned dev_addr, int state) +{ + if (CFG_I2C_EEPROM_ADDR != dev_addr) { + return -1; + } else { + switch (state) { + case 1: + /* Enable write access, clear bit GPIO0. */ + out_be32((void*)GPIO0_OR, in_be32((void*)GPIO0_OR) & ~CFG_EEPROM_WP); + state = 0; + break; + case 0: + /* Disable write access, set bit GPIO0. */ + out_be32((void*)GPIO0_OR, in_be32((void*)GPIO0_OR) | CFG_EEPROM_WP); + state = 0; + break; + default: + /* Read current status back. */ + state = (0 == (in_be32((void*)GPIO0_OR) & CFG_EEPROM_WP)); + break; + } + } + return state; +} + +int do_eep_wren (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ + int query = argc == 1; + int state = 0; + + if (query) { + /* Query write access state. */ + state = eeprom_write_enable (CFG_I2C_EEPROM_ADDR, -1); + if (state < 0) { + puts ("Query of write access state failed.\n"); + } else { + printf ("Write access for device 0x%0x is %sabled.\n", + CFG_I2C_EEPROM_ADDR, state ? "en" : "dis"); + state = 0; + } + } else { + if ('0' == argv[1][0]) { + /* Disable write access. */ + state = eeprom_write_enable (CFG_I2C_EEPROM_ADDR, 0); + } else { + /* Enable write access. */ + state = eeprom_write_enable (CFG_I2C_EEPROM_ADDR, 1); + } + if (state < 0) { + puts ("Setup of write access state failed.\n"); + } + } + + return state; +} + +U_BOOT_CMD(eepwren, 2, 0, do_eep_wren, + "eepwren - Enable / disable / query EEPROM write access\n", + NULL); +#endif /* #if defined(CFG_EEPROM_WREN) */ |