diff options
Diffstat (limited to 'arch/arm/cpu/arm_cortexa8/omap3/mem.c')
| -rw-r--r-- | arch/arm/cpu/arm_cortexa8/omap3/mem.c | 90 |
1 files changed, 0 insertions, 90 deletions
diff --git a/arch/arm/cpu/arm_cortexa8/omap3/mem.c b/arch/arm/cpu/arm_cortexa8/omap3/mem.c index dfb7e4c..bd914b0 100644 --- a/arch/arm/cpu/arm_cortexa8/omap3/mem.c +++ b/arch/arm/cpu/arm_cortexa8/omap3/mem.c @@ -79,26 +79,6 @@ static const u32 gpmc_onenand[GPMC_MAX_REG] = { #endif -static struct sdrc *sdrc_base = (struct sdrc *)OMAP34XX_SDRC_BASE; - -/************************************************************************** - * make_cs1_contiguous() - for es2 and above remap cs1 behind cs0 to allow - * command line mem=xyz use all memory with out discontinuous support - * compiled in. Could do it at the ATAG, but there really is two banks... - * Called as part of 2nd phase DDR init. - **************************************************************************/ -void make_cs1_contiguous(void) -{ - u32 size, a_add_low, a_add_high; - - size = get_sdr_cs_size(CS0); - size >>= 25; /* divide by 32 MiB to find size to offset CS1 */ - a_add_high = (size & 3) << 8; /* set up low field */ - a_add_low = (size & 0x3C) >> 2; /* set up high field */ - writel((a_add_high | a_add_low), &sdrc_base->cs_cfg); - -} - /******************************************************** * mem_ok() - test used to see if timings are correct * for a part. Helps in guessing which part @@ -123,76 +103,6 @@ u32 mem_ok(u32 cs) return 1; } -/******************************************************** - * sdrc_init() - init the sdrc chip selects CS0 and CS1 - * - early init routines, called from flash or - * SRAM. - *******************************************************/ -void sdrc_init(void) -{ - /* only init up first bank here */ - do_sdrc_init(CS0, EARLY_INIT); -} - -/************************************************************************* - * do_sdrc_init(): initialize the SDRAM for use. - * -code sets up SDRAM basic SDRC timings for CS0 - * -optimal settings can be placed here, or redone after i2c - * inspection of board info - * - * - code called once in C-Stack only context for CS0 and a possible 2nd - * time depending on memory configuration from stack+global context - **************************************************************************/ - -void do_sdrc_init(u32 cs, u32 early) -{ - struct sdrc_actim *sdrc_actim_base; - - if(cs) - sdrc_actim_base = (struct sdrc_actim *)SDRC_ACTIM_CTRL1_BASE; - else - sdrc_actim_base = (struct sdrc_actim *)SDRC_ACTIM_CTRL0_BASE; - - if (early) { - /* reset sdrc controller */ - writel(SOFTRESET, &sdrc_base->sysconfig); - wait_on_value(RESETDONE, RESETDONE, &sdrc_base->status, - 12000000); - writel(0, &sdrc_base->sysconfig); - - /* setup sdrc to ball mux */ - writel(SDRC_SHARING, &sdrc_base->sharing); - - /* Disable Power Down of CKE cuz of 1 CKE on combo part */ - writel(WAKEUPPROC | PWDNEN | SRFRONRESET | PAGEPOLICY_HIGH, - &sdrc_base->power); - - writel(ENADLL | DLLPHASE_90, &sdrc_base->dlla_ctrl); - sdelay(0x20000); - } - - writel(RASWIDTH_13BITS | CASWIDTH_10BITS | ADDRMUXLEGACY | - RAMSIZE_128 | BANKALLOCATION | B32NOT16 | B32NOT16 | - DEEPPD | DDR_SDRAM, &sdrc_base->cs[cs].mcfg); - writel(ARCV | ARE_ARCV_1, &sdrc_base->cs[cs].rfr_ctrl); - writel(V_ACTIMA_165, &sdrc_actim_base->ctrla); - writel(V_ACTIMB_165, &sdrc_actim_base->ctrlb); - - writel(CMD_NOP, &sdrc_base ->cs[cs].manual); - writel(CMD_PRECHARGE, &sdrc_base->cs[cs].manual); - writel(CMD_AUTOREFRESH, &sdrc_base->cs[cs].manual); - writel(CMD_AUTOREFRESH, &sdrc_base->cs[cs].manual); - - /* - * CAS latency 3, Write Burst = Read Burst, Serial Mode, - * Burst length = 4 - */ - writel(CASL3 | BURSTLENGTH4, &sdrc_base->cs[cs].mr); - - if (!mem_ok(cs)) - writel(0, &sdrc_base->cs[cs].mcfg); -} - void enable_gpmc_cs_config(const u32 *gpmc_config, struct gpmc_cs *cs, u32 base, u32 size) { |