diff options
Diffstat (limited to 'board/apollon/mem.c')
| -rw-r--r-- | board/apollon/mem.c | 43 |
1 files changed, 25 insertions, 18 deletions
diff --git a/board/apollon/mem.c b/board/apollon/mem.c index 8154d11..c0edca5 100644 --- a/board/apollon/mem.c +++ b/board/apollon/mem.c @@ -39,20 +39,19 @@ * is necessary until timers are accessible. * * not inline to increase chances its in cache when called -*************************************************************/ + *************************************************************/ void sdelay(unsigned long loops) { - __asm__ volatile ("1:\n" "subs %0, %1, #1\n" - "bne 1b":"=r" (loops):"0"(loops)); + __asm__("1:\n" "subs %0, %1, #1\n" + "bne 1b":"=r" (loops):"0"(loops)); } -/***************************************************************************** +/******************************************************************** * prcm_init() - inits clocks for PRCM as defined in clocks.h - * (config II default). Called from SRAM, or Flash (using temp SRAM stack). - *****************************************************************************/ -void prcm_init(void) -{ -} + * (config II default). + * -- called from SRAM, or Flash (using temp SRAM stack). + ********************************************************************/ +void prcm_init(void) { } /************************************************************************** * make_cs1_contiguous() - for es2 and above remap cs1 behind cs0 to allow @@ -69,6 +68,7 @@ void make_cs1_contiguous(void) a_add_high = (size & 3) << 8; /* set up low field */ a_add_low = (size & 0x3C) >> 2; /* set up high field */ __raw_writel((a_add_high | a_add_low), SDRC_CS_CFG); + } /******************************************************** @@ -81,13 +81,18 @@ u32 mem_ok(void) u32 val1, val2; u32 pattern = 0x12345678; - __raw_writel(0x0, OMAP2420_SDRC_CS0 + 0x400); /* clear pos A */ - __raw_writel(pattern, OMAP2420_SDRC_CS0); /* pattern to pos B */ - __raw_writel(0x0, OMAP2420_SDRC_CS0 + 4); /* remove pattern off the bus */ - val1 = __raw_readl(OMAP2420_SDRC_CS0 + 0x400); /* get pos A value */ + /* clear pos A */ + __raw_writel(0x0, OMAP2420_SDRC_CS0 + 0x400); + /* pattern to pos B */ + __raw_writel(pattern, OMAP2420_SDRC_CS0); + /* remove pattern off the bus */ + __raw_writel(0x0, OMAP2420_SDRC_CS0 + 4); + /* get pos A value */ + val1 = __raw_readl(OMAP2420_SDRC_CS0 + 0x400); val2 = __raw_readl(OMAP2420_SDRC_CS0); /* get val2 */ - if ((val1 != 0) || (val2 != pattern)) /* see if pos A value changed */ + /* see if pos A value changed */ + if ((val1 != 0) || (val2 != pattern)) return (0); else return (1); @@ -142,9 +147,11 @@ void gpmc_init(void) __raw_writel(0x0, GPMC_IRQENABLE); /* isr's sources masked */ __raw_writel(tval, GPMC_TIMEOUT_CONTROL); /* timeout disable */ #ifdef CFG_NAND_BOOT - __raw_writel(0x001, GPMC_CONFIG); /* set nWP, disable limited addr */ + /* set nWP, disable limited addr */ + __raw_writel(0x001, GPMC_CONFIG); #else - __raw_writel(0x111, GPMC_CONFIG); /* set nWP, disable limited addr */ + /* set nWP, disable limited addr */ + __raw_writel(0x111, GPMC_CONFIG); #endif /* discover bus connection from sysboot */ @@ -164,7 +171,8 @@ void gpmc_init(void) __raw_writel(APOLLON_24XX_GPMC_CONFIG4_3, GPMC_CONFIG4_0); __raw_writel(APOLLON_24XX_GPMC_CONFIG5_3, GPMC_CONFIG5_0); __raw_writel(APOLLON_24XX_GPMC_CONFIG6_3, GPMC_CONFIG6_0); - __raw_writel(APOLLON_24XX_GPMC_CONFIG7_3, GPMC_CONFIG7_0); #else + __raw_writel(APOLLON_24XX_GPMC_CONFIG7_3, GPMC_CONFIG7_0); +#else __raw_writel(APOLLON_24XX_GPMC_CONFIG1_0 | mux | mtype | mwidth, GPMC_CONFIG1_0); __raw_writel(APOLLON_24XX_GPMC_CONFIG2_0, GPMC_CONFIG2_0); @@ -172,7 +180,6 @@ void gpmc_init(void) __raw_writel(APOLLON_24XX_GPMC_CONFIG4_0, GPMC_CONFIG4_0); __raw_writel(APOLLON_24XX_GPMC_CONFIG5_0, GPMC_CONFIG5_0); __raw_writel(APOLLON_24XX_GPMC_CONFIG6_0, GPMC_CONFIG6_0); - /* enable new mapping */ __raw_writel(APOLLON_24XX_GPMC_CONFIG7_0, GPMC_CONFIG7_0); #endif sdelay(2000); |