diff options
Diffstat (limited to 'board/freescale/common/ngpixis.c')
-rw-r--r-- | board/freescale/common/ngpixis.c | 56 |
1 files changed, 42 insertions, 14 deletions
diff --git a/board/freescale/common/ngpixis.c b/board/freescale/common/ngpixis.c index a135fbe..4e01e5a 100644 --- a/board/freescale/common/ngpixis.c +++ b/board/freescale/common/ngpixis.c @@ -1,5 +1,5 @@ /** - * Copyright 2010 Freescale Semiconductor + * Copyright 2010-2011 Freescale Semiconductor * Author: Timur Tabi <timur@freescale.com> * * This program is free software; you can redistribute it and/or modify it @@ -35,61 +35,89 @@ #include <common.h> #include <command.h> -#include <watchdog.h> -#include <asm/cache.h> #include <asm/io.h> #include "ngpixis.h" +static u8 __pixis_read(unsigned int reg) +{ + void *p = (void *)PIXIS_BASE; + + return in_8(p + reg); +} +u8 pixis_read(unsigned int reg) __attribute__((weak, alias("__pixis_read"))); + +static void __pixis_write(unsigned int reg, u8 value) +{ + void *p = (void *)PIXIS_BASE; + + out_8(p + reg, value); +} +void pixis_write(unsigned int reg, u8 value) + __attribute__((weak, alias("__pixis_write"))); + /* * Reset the board. This ignores the ENx registers. */ -void pixis_reset(void) +void __pixis_reset(void) { - out_8(&pixis->rst, 0); + PIXIS_WRITE(rst, 0); while (1); } +void pixis_reset(void) __attribute__((weak, alias("__pixis_reset"))); /* * Reset the board. Like pixis_reset(), but it honors the ENx registers. */ -void pixis_bank_reset(void) +void __pixis_bank_reset(void) { - out_8(&pixis->vctl, 0); - out_8(&pixis->vctl, 1); + PIXIS_WRITE(vctl, 0); + PIXIS_WRITE(vctl, 1); while (1); } +void pixis_bank_reset(void) __attribute__((weak, alias("__pixis_bank_reset"))); /** * Set the boot bank to the power-on default bank */ -void clear_altbank(void) +void __clear_altbank(void) { + u8 reg; + /* Tell the ngPIXIS to use this the bits in the physical switch for the * boot bank value, instead of the SWx register. We need to be careful * only to set the bits in SWx that correspond to the boot bank. */ - clrbits_8(&PIXIS_EN(PIXIS_LBMAP_SWITCH), PIXIS_LBMAP_MASK); + reg = PIXIS_READ(s[PIXIS_LBMAP_SWITCH - 1].en); + reg &= ~PIXIS_LBMAP_MASK; + PIXIS_WRITE(s[PIXIS_LBMAP_SWITCH - 1].en, reg); } +void clear_altbank(void) __attribute__((weak, alias("__clear_altbank"))); /** * Set the boot bank to the alternate bank */ -void set_altbank(void) +void __set_altbank(void) { + u8 reg; + /* Program the alternate bank number into the SWx register. */ - clrsetbits_8(&PIXIS_SW(PIXIS_LBMAP_SWITCH), PIXIS_LBMAP_MASK, - PIXIS_LBMAP_ALTBANK); + reg = PIXIS_READ(s[PIXIS_LBMAP_SWITCH - 1].sw); + reg = (reg & ~PIXIS_LBMAP_MASK) | PIXIS_LBMAP_ALTBANK; + PIXIS_WRITE(s[PIXIS_LBMAP_SWITCH - 1].sw, reg); /* Tell the ngPIXIS to use this the bits in the SWx register for the * boot bank value, instead of the physical switch. We need to be * careful only to set the bits in SWx that correspond to the boot bank. */ - setbits_8(&PIXIS_EN(PIXIS_LBMAP_SWITCH), PIXIS_LBMAP_MASK); + reg = PIXIS_READ(s[PIXIS_LBMAP_SWITCH - 1].en); + reg |= PIXIS_LBMAP_MASK; + PIXIS_WRITE(s[PIXIS_LBMAP_SWITCH - 1].en, reg); } +void set_altbank(void) __attribute__((weak, alias("__set_altbank"))); int pixis_reset_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |