diff options
Diffstat (limited to 'board/sacsng')
| -rwxr-xr-x | board/sacsng/Makefile | 46 | ||||
| -rwxr-xr-x | board/sacsng/clkinit.c | 1025 | ||||
| -rwxr-xr-x | board/sacsng/clkinit.h | 124 | ||||
| -rwxr-xr-x | board/sacsng/config.mk | 34 | ||||
| -rwxr-xr-x | board/sacsng/flash.c | 523 | ||||
| -rwxr-xr-x | board/sacsng/ioconfig.h | 217 | ||||
| -rwxr-xr-x | board/sacsng/sacsng.c | 890 | ||||
| -rwxr-xr-x | board/sacsng/u-boot.lds | 125 |
8 files changed, 2984 insertions, 0 deletions
diff --git a/board/sacsng/Makefile b/board/sacsng/Makefile new file mode 100755 index 0000000..baefa4a --- /dev/null +++ b/board/sacsng/Makefile @@ -0,0 +1,46 @@ +# +# (C) Copyright 2000 +# Wolfgang Denk, DENX Software Engineering, wd@denx.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 $(TOPDIR)/config.mk + +LIB = lib$(BOARD).a + +OBJS := sacsng.o flash.o clkinit.o + +$(LIB): $(OBJS) $(SOBJS) + $(AR) crv $@ $(OBJS) + +clean: + rm -f $(SOBJS) $(OBJS) + +distclean: clean + rm -f $(LIB) core *.bak .depend + +######################################################################### + +.depend: Makefile $(SOBJS:.o=.S) $(OBJS:.o=.c) + $(CC) -M $(CPPFLAGS) $(SOBJS:.o=.S) $(OBJS:.o=.c) > $@ + +-include .depend + +######################################################################### diff --git a/board/sacsng/clkinit.c b/board/sacsng/clkinit.c new file mode 100755 index 0000000..ea4c65d --- /dev/null +++ b/board/sacsng/clkinit.c @@ -0,0 +1,1025 @@ +/* + * (C) Copyright 2002 + * Custom IDEAS, Inc. <www.cideas.com> + * Jon Diekema <diekema@cideas.com> + * + * 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 <ioports.h> +#include <mpc8260.h> +#include <asm/cpm_8260.h> +#include <configs/sacsng.h> + +#include "clkinit.h" + +int Daq64xSampling = 0; + + +void Daq_BRG_Reset(uint brg) +{ + volatile immap_t *immr = (immap_t *)CFG_IMMR; + volatile uint *brg_ptr; + + brg_ptr = (uint *)&immr->im_brgc1; + + if (brg >= 5) { + brg_ptr = (uint *)&immr->im_brgc5; + brg -= 4; + } + brg_ptr += brg; + *brg_ptr |= CPM_BRG_RST; + *brg_ptr &= ~CPM_BRG_RST; +} + +void Daq_BRG_Disable(uint brg) +{ + volatile immap_t *immr = (immap_t *)CFG_IMMR; + volatile uint *brg_ptr; + + brg_ptr = (uint *)&immr->im_brgc1; + + if (brg >= 5) { + brg_ptr = (uint *)&immr->im_brgc5; + brg -= 4; + } + brg_ptr += brg; + *brg_ptr &= ~CPM_BRG_EN; +} + +void Daq_BRG_Enable(uint brg) +{ + volatile immap_t *immr = (immap_t *)CFG_IMMR; + volatile uint *brg_ptr; + + brg_ptr = (uint *)&immr->im_brgc1; + if (brg >= 5) { + brg_ptr = (uint *)&immr->im_brgc5; + brg -= 4; + } + brg_ptr += brg; + *brg_ptr |= CPM_BRG_EN; +} + +uint Daq_BRG_Get_Div16(uint brg) +{ + volatile immap_t *immr = (immap_t *)CFG_IMMR; + uint *brg_ptr; + + brg_ptr = (uint *)&immr->im_brgc1; + if (brg >= 5) { + brg_ptr = (uint *)&immr->im_brgc5; + brg -= 4; + } + brg_ptr += brg; + + if (*brg_ptr & CPM_BRG_DIV16) { + /* DIV16 active */ + return (TRUE); + } + else { + /* DIV16 inactive */ + return (FALSE); + } +} + +void Daq_BRG_Set_Div16(uint brg, uint div16) +{ + volatile immap_t *immr = (immap_t *)CFG_IMMR; + uint *brg_ptr; + + brg_ptr = (uint *)&immr->im_brgc1; + if (brg >= 5) { + brg_ptr = (uint *)&immr->im_brgc5; + brg -= 4; + } + brg_ptr += brg; + + if (div16) { + /* DIV16 active */ + *brg_ptr |= CPM_BRG_DIV16; + } + else { + /* DIV16 inactive */ + *brg_ptr &= ~CPM_BRG_DIV16; + } +} + +uint Daq_BRG_Get_Count(uint brg) +{ + volatile immap_t *immr = (immap_t *)CFG_IMMR; + uint *brg_ptr; + uint brg_cnt; + + brg_ptr = (uint *)&immr->im_brgc1; + if (brg >= 5) { + brg_ptr = (uint *)&immr->im_brgc5; + brg -= 4; + } + brg_ptr += brg; + + /* Get the clock divider + * + * Note: A clock divider of 0 means divide by 1, + * therefore we need to add 1 to the count. + */ + brg_cnt = (*brg_ptr & CPM_BRG_CD_MASK) >> CPM_BRG_DIV16_SHIFT; + brg_cnt++; + if (*brg_ptr & CPM_BRG_DIV16) { + brg_cnt *= 16; + } + + return (brg_cnt); +} + +void Daq_BRG_Set_Count(uint brg, uint brg_cnt) +{ + volatile immap_t *immr = (immap_t *)CFG_IMMR; + uint *brg_ptr; + + brg_ptr = (uint *)&immr->im_brgc1; + if (brg >= 5) { + brg_ptr = (uint *)&immr->im_brgc5; + brg -= 4; + } + brg_ptr += brg; + + /* + * Note: A clock divider of 0 means divide by 1, + * therefore we need to subtract 1 from the count. + */ + if (brg_cnt > 4096) { + /* Prescale = Divide by 16 */ + *brg_ptr = (*brg_ptr & ~CPM_BRG_CD_MASK) | + (((brg_cnt / 16) - 1) << CPM_BRG_DIV16_SHIFT); + *brg_ptr |= CPM_BRG_DIV16; + } + else { + /* Prescale = Divide by 1 */ + *brg_ptr = (*brg_ptr & ~CPM_BRG_CD_MASK) | + ((brg_cnt - 1) << CPM_BRG_DIV16_SHIFT); + *brg_ptr &= ~CPM_BRG_DIV16; + } +} + +uint Daq_BRG_Get_ExtClk(uint brg) +{ + volatile immap_t *immr = (immap_t *)CFG_IMMR; + uint *brg_ptr; + + brg_ptr = (uint *)&immr->im_brgc1; + if (brg >= 5) { + brg_ptr = (uint *)&immr->im_brgc5; + brg -= 4; + } + brg_ptr += brg; + + return ((*brg_ptr & CPM_BRG_EXTC_MASK) >> CPM_BRG_EXTC_SHIFT); +} + +char* Daq_BRG_Get_ExtClk_Description(uint brg) +{ + uint extc; + + extc = Daq_BRG_Get_ExtClk(brg); + + switch (brg + 1) { + case 1: + case 2: + case 5: + case 6: { + switch (extc) { + case 0: { + return ("BRG_INT"); + } + case 1: { + return ("CLK3"); + } + case 2: { + return ("CLK5"); + } + } + return ("??1245??"); + } + case 3: + case 4: + case 7: + case 8: { + switch (extc) { + case 0: { + return ("BRG_INT"); + } + case 1: { + return ("CLK9"); + } + case 2: { + return ("CLK15"); + } + } + return ("??3478??"); + } + } + return ("??9876??"); +} + +void Daq_BRG_Set_ExtClk(uint brg, uint extc) +{ + volatile immap_t *immr = (immap_t *)CFG_IMMR; + uint *brg_ptr; + + brg_ptr = (uint *)&immr->im_brgc1; + if (brg >= 5) { + brg_ptr = (uint *)&immr->im_brgc5; + brg -= 4; + } + brg_ptr += brg; + + *brg_ptr = (*brg_ptr & ~CPM_BRG_EXTC_MASK) | + ((extc << CPM_BRG_EXTC_SHIFT) & CPM_BRG_EXTC_MASK); +} + +uint Daq_BRG_Rate(uint brg) +{ + DECLARE_GLOBAL_DATA_PTR; + volatile immap_t *immr = (immap_t *)CFG_IMMR; + uint *brg_ptr; + uint brg_cnt; + uint brg_freq = 0; + + brg_ptr = (uint *)&immr->im_brgc1; + brg_ptr += brg; + if (brg >= 5) { + brg_ptr = (uint *)&immr->im_brgc5; + brg_ptr += (brg - 4); + } + + brg_cnt = Daq_BRG_Get_Count(brg); + + switch (Daq_BRG_Get_ExtClk(brg)) { + case CPM_BRG_EXTC_CLK3: + case CPM_BRG_EXTC_CLK5: { + brg_freq = brg_cnt; + break; + } + default: { + brg_freq = (uint)BRG_INT_CLK / brg_cnt; + } + } + return (brg_freq); +} + +uint Daq_Get_SampleRate(void) +{ + /* + * Read the BRG's to return the actual sample rate. + */ + return (Daq_BRG_Rate(MCLK_BRG) / (MCLK_DIVISOR * SCLK_DIVISOR)); +} + +void Daq_Init_Clocks(int sample_rate, int sample_64x) +{ + DECLARE_GLOBAL_DATA_PTR; + volatile ioport_t *iopa = ioport_addr((immap_t *)CFG_IMMR, 0 /* port A */); + uint mclk_divisor; /* MCLK divisor */ + int flag; /* Interrupt state */ + + /* Save off the clocking data */ + Daq64xSampling = sample_64x; + + /* + * Limit the sample rate to some sensible values. + */ + if (sample_rate > MAX_64x_SAMPLE_RATE) { + sample_rate = MAX_64x_SAMPLE_RATE; + } + if (sample_rate < MIN_SAMPLE_RATE) { + sample_rate = MIN_SAMPLE_RATE; + } + + /* + * Initialize the MCLK/SCLK/LRCLK baud rate generators. + */ + + /* Setup MCLK */ + Daq_BRG_Set_ExtClk(MCLK_BRG, CPM_BRG_EXTC_BRGCLK); + + /* Setup SCLK */ +# ifdef RUN_SCLK_ON_BRG_INT + Daq_BRG_Set_ExtClk(SCLK_BRG, CPM_BRG_EXTC_BRGCLK); +# else + Daq_BRG_Set_ExtClk(SCLK_BRG, CPM_BRG_EXTC_CLK9); +# endif + + /* Setup LRCLK */ +# ifdef RUN_LRCLK_ON_BRG_INT + Daq_BRG_Set_ExtClk(LRCLK_BRG, CPM_BRG_EXTC_BRGCLK); +# else + Daq_BRG_Set_ExtClk(LRCLK_BRG, CPM_BRG_EXTC_CLK5); +# endif + + /* + * Dynamically adjust MCLK based on the new sample rate. + */ + + /* Compute the divisors */ + mclk_divisor = BRG_INT_CLK / (sample_rate * MCLK_DIVISOR * SCLK_DIVISOR); + + /* + * Disable interrupt and save the current state + */ + flag = disable_interrupts(); + + /* Setup MCLK */ + Daq_BRG_Set_Count(MCLK_BRG, mclk_divisor); + + /* Setup SCLK */ +# ifdef RUN_SCLK_ON_BRG_INT + Daq_BRG_Set_Count(SCLK_BRG, mclk_divisor * MCLK_DIVISOR); +# else + Daq_BRG_Set_Count(SCLK_BRG, MCLK_DIVISOR); +# endif + +# ifdef RUN_LRCLK_ON_BRG_INT + Daq_BRG_Set_Count(LRCLK_BRG, + mclk_divisor * MCLK_DIVISOR * SCLK_DIVISOR); +# else + Daq_BRG_Set_Count(LRCLK_BRG, SCLK_DIVISOR); +# endif + + /* + * Restore the Interrupt state + */ + if (flag) { + enable_interrupts(); + } + + /* Enable the clock drivers */ + iopa->pdat &= ~SLRCLK_EN_MASK; +} + +void Daq_Stop_Clocks(void) + +{ +#ifdef TIGHTEN_UP_BRG_TIMING + volatile immap_t *immr = (immap_t *)CFG_IMMR; + register uint mclk_brg; /* MCLK BRG value */ + register uint sclk_brg; /* SCLK BRG value */ + register uint lrclk_brg; /* LRCLK BRG value */ + unsigned long flag; /* Interrupt flags */ +#endif + +# ifdef TIGHTEN_UP_BRG_TIMING + /* + * Obtain MCLK BRG reset/disabled value + */ +# if (MCLK_BRG == 0) + mclk_brg = (*IM_BRGC1 | CPM_BRG_RST) & ~CPM_BRG_EN; +# endif +# if (MCLK_BRG == 1) + mclk_brg = (*IM_BRGC2 | CPM_BRG_RST) & ~CPM_BRG_EN; +# endif +# if (MCLK_BRG == 2) + mclk_brg = (*IM_BRGC3 | CPM_BRG_RST) & ~CPM_BRG_EN; +# endif +# if (MCLK_BRG == 3) + mclk_brg = (*IM_BRGC4 | CPM_BRG_RST) & ~CPM_BRG_EN; +# endif +# if (MCLK_BRG == 4) + mclk_brg = (*IM_BRGC5 | CPM_BRG_RST) & ~CPM_BRG_EN; +# endif +# if (MCLK_BRG == 5) + mclk_brg = (*IM_BRGC6 | CPM_BRG_RST) & ~CPM_BRG_EN; +# endif +# if (MCLK_BRG == 6) + mclk_brg = (*IM_BRGC7 | CPM_BRG_RST) & ~CPM_BRG_EN; +# endif +# if (MCLK_BRG == 7) + mclk_brg = (*IM_BRGC8 | CPM_BRG_RST) & ~CPM_BRG_EN; +# endif + + /* + * Obtain SCLK BRG reset/disabled value + */ +# if (SCLK_BRG == 0) + sclk_brg = (*IM_BRGC1 | CPM_BRG_RST) & ~CPM_BRG_EN; +# endif +# if (SCLK_BRG == 1) + sclk_brg = (*IM_BRGC2 | CPM_BRG_RST) & ~CPM_BRG_EN; +# endif +# if (SCLK_BRG == 2) + sclk_brg = (*IM_BRGC3 | CPM_BRG_RST) & ~CPM_BRG_EN; +# endif +# if (SCLK_BRG == 3) + sclk_brg = (*IM_BRGC4 | CPM_BRG_RST) & ~CPM_BRG_EN; +# endif +# if (SCLK_BRG == 4) + sclk_brg = (*IM_BRGC5 | CPM_BRG_RST) & ~CPM_BRG_EN; +# endif +# if (SCLK_BRG == 5) + sclk_brg = (*IM_BRGC6 | CPM_BRG_RST) & ~CPM_BRG_EN; +# endif +# if (SCLK_BRG == 6) + sclk_brg = (*IM_BRGC7 | CPM_BRG_RST) & ~CPM_BRG_EN; +# endif +# if (SCLK_BRG == 7) + sclk_brg = (*IM_BRGC8 | CPM_BRG_RST) & ~CPM_BRG_EN; +# endif + + /* + * Obtain LRCLK BRG reset/disabled value + */ +# if (LRCLK_BRG == 0) + lrclk_brg = (*IM_BRGC1 | CPM_BRG_RST) & ~CPM_BRG_EN; +# endif +# if (LRCLK_BRG == 1) + lrclk_brg = (*IM_BRGC2 | CPM_BRG_RST) & ~CPM_BRG_EN; +# endif +# if (LRCLK_BRG == 2) + lrclk_brg = (*IM_BRGC3 | CPM_BRG_RST) & ~CPM_BRG_EN; +# endif +# if (LRCLK_BRG == 3) + lrclk_brg = (*IM_BRGC4 | CPM_BRG_RST) & ~CPM_BRG_EN; +# endif +# if (LRCLK_BRG == 4) + lrclk_brg = (*IM_BRGC5 | CPM_BRG_RST) & ~CPM_BRG_EN; +# endif +# if (LRCLK_BRG == 5) + lrclk_brg = (*IM_BRGC6 | CPM_BRG_RST) & ~CPM_BRG_EN; +# endif +# if (LRCLK_BRG == 6) + lrclk_brg = (*IM_BRGC7 | CPM_BRG_RST) & ~CPM_BRG_EN; +# endif +# if (LRCLK_BRG == 7) + lrclk_brg = (*IM_BRGC8 | CPM_BRG_RST) & ~CPM_BRG_EN; +# endif + + /* + * Disable interrupt and save the current state + */ + flag = disable_interrupts(); + + /* + * Set reset on MCLK BRG + */ +# if (MCLK_BRG == 0) + *IM_BRGC1 = mclk_brg; +# endif +# if (MCLK_BRG == 1) + *IM_BRGC2 = mclk_brg; +# endif +# if (MCLK_BRG == 2) + *IM_BRGC3 = mclk_brg; +# endif +# if (MCLK_BRG == 3) + *IM_BRGC4 = mclk_brg; +# endif +# if (MCLK_BRG == 4) + *IM_BRGC5 = mclk_brg; +# endif +# if (MCLK_BRG == 5) + *IM_BRGC6 = mclk_brg; +# endif +# if (MCLK_BRG == 6) + *IM_BRGC7 = mclk_brg; +# endif +# if (MCLK_BRG == 7) + *IM_BRGC8 = mclk_brg; +# endif + + /* + * Set reset on SCLK BRG + */ +# if (SCLK_BRG == 0) + *IM_BRGC1 = sclk_brg; +# endif +# if (SCLK_BRG == 1) + *IM_BRGC2 = sclk_brg; +# endif +# if (SCLK_BRG == 2) + *IM_BRGC3 = sclk_brg; +# endif +# if (SCLK_BRG == 3) + *IM_BRGC4 = sclk_brg; +# endif +# if (SCLK_BRG == 4) + *IM_BRGC5 = sclk_brg; +# endif +# if (SCLK_BRG == 5) + *IM_BRGC6 = sclk_brg; +# endif +# if (SCLK_BRG == 6) + *IM_BRGC7 = sclk_brg; +# endif +# if (SCLK_BRG == 7) + *IM_BRGC8 = sclk_brg; +# endif + + /* + * Set reset on LRCLK BRG + */ +# if (LRCLK_BRG == 0) + *IM_BRGC1 = lrclk_brg; +# endif +# if (LRCLK_BRG == 1) + *IM_BRGC2 = lrclk_brg; +# endif +# if (LRCLK_BRG == 2) + *IM_BRGC3 = lrclk_brg; +# endif +# if (LRCLK_BRG == 3) + *IM_BRGC4 = lrclk_brg; +# endif +# if (LRCLK_BRG == 4) + *IM_BRGC5 = lrclk_brg; +# endif +# if (LRCLK_BRG == 5) + *IM_BRGC6 = lrclk_brg; +# endif +# if (LRCLK_BRG == 6) + *IM_BRGC7 = lrclk_brg; +# endif +# if (LRCLK_BRG == 7) + *IM_BRGC8 = lrclk_brg; +# endif + + /* + * Clear reset on MCLK BRG + */ +# if (MCLK_BRG == 0) + *IM_BRGC1 = mclk_brg & ~CPM_BRG_RST; +# endif +# if (MCLK_BRG == 1) + *IM_BRGC2 = mclk_brg & ~CPM_BRG_RST; +# endif +# if (MCLK_BRG == 2) + *IM_BRGC3 = mclk_brg & ~CPM_BRG_RST; +# endif +# if (MCLK_BRG == 3) + *IM_BRGC4 = mclk_brg & ~CPM_BRG_RST; +# endif +# if (MCLK_BRG == 4) + *IM_BRGC5 = mclk_brg & ~CPM_BRG_RST; +# endif +# if (MCLK_BRG == 5) + *IM_BRGC6 = mclk_brg & ~CPM_BRG_RST; +# endif +# if (MCLK_BRG == 6) + *IM_BRGC7 = mclk_brg & ~CPM_BRG_RST; +# endif +# if (MCLK_BRG == 7) + *IM_BRGC8 = mclk_brg & ~CPM_BRG_RST; +# endif + + /* + * Clear reset on SCLK BRG + */ +# if (SCLK_BRG == 0) + *IM_BRGC1 = sclk_brg & ~CPM_BRG_RST; +# endif +# if (SCLK_BRG == 1) + *IM_BRGC2 = sclk_brg & ~CPM_BRG_RST; +# endif +# if (SCLK_BRG == 2) + *IM_BRGC3 = sclk_brg & ~CPM_BRG_RST; +# endif +# if (SCLK_BRG == 3) + *IM_BRGC4 = sclk_brg & ~CPM_BRG_RST; +# endif +# if (SCLK_BRG == 4) + *IM_BRGC5 = sclk_brg & ~CPM_BRG_RST; +# endif +# if (SCLK_BRG == 5) + *IM_BRGC6 = sclk_brg & ~CPM_BRG_RST; +# endif +# if (SCLK_BRG == 6) + *IM_BRGC7 = sclk_brg & ~CPM_BRG_RST; +# endif +# if (SCLK_BRG == 7) + *IM_BRGC8 = sclk_brg & ~CPM_BRG_RST; +# endif + + /* + * Clear reset on LRCLK BRG + */ +# if (LRCLK_BRG == 0) + *IM_BRGC1 = lrclk_brg & ~CPM_BRG_RST; +# endif +# if (LRCLK_BRG == 1) + *IM_BRGC2 = lrclk_brg & ~CPM_BRG_RST; +# endif +# if (LRCLK_BRG == 2) + *IM_BRGC3 = lrclk_brg & ~CPM_BRG_RST; +# endif +# if (LRCLK_BRG == 3) + *IM_BRGC4 = lrclk_brg & ~CPM_BRG_RST; +# endif +# if (LRCLK_BRG == 4) + *IM_BRGC5 = lrclk_brg & ~CPM_BRG_RST; +# endif +# if (LRCLK_BRG == 5) + *IM_BRGC6 = lrclk_brg & ~CPM_BRG_RST; +# endif +# if (LRCLK_BRG == 6) + *IM_BRGC7 = lrclk_brg & ~CPM_BRG_RST; +# endif +# if (LRCLK_BRG == 7) + *IM_BRGC8 = lrclk_brg & ~CPM_BRG_RST; +# endif + + /* + * Restore the Interrupt state + */ + if (flag) { + enable_interrupts(); + } +# else + /* + * Reset the clocks + */ + Daq_BRG_Reset(MCLK_BRG); + Daq_BRG_Reset(SCLK_BRG); + Daq_BRG_Reset(LRCLK_BRG); +# endif +} + +void Daq_Start_Clocks(int sample_rate) + +{ +#ifdef TIGHTEN_UP_BRG_TIMING + volatile immap_t *immr = (immap_t *)CFG_IMMR; + + register uint mclk_brg; /* MCLK BRG value */ + register uint sclk_brg; /* SCLK BRG value */ + register uint temp_lrclk_brg; /* Temporary LRCLK BRG value */ + register uint real_lrclk_brg; /* Permanent LRCLK BRG value */ + uint lrclk_brg; /* LRCLK BRG value */ + unsigned long flags; /* Interrupt flags */ + uint sclk_cnt; /* SCLK count */ + uint delay_cnt; /* Delay count */ +#endif + +# ifdef TIGHTEN_UP_BRG_TIMING + /* + * Obtain the enabled MCLK BRG value + */ +# if (MCLK_BRG == 0) + mclk_brg = (*IM_BRGC1 & ~CPM_BRG_RST) | CPM_BRG_EN; +# endif +# if (MCLK_BRG == 1) + mclk_brg = (*IM_BRGC2 & ~CPM_BRG_RST) | CPM_BRG_EN; +# endif +# if (MCLK_BRG == 2) + mclk_brg = (*IM_BRGC3 & ~CPM_BRG_RST) | CPM_BRG_EN; +# endif +# if (MCLK_BRG == 3) + mclk_brg = (*IM_BRGC4 & ~CPM_BRG_RST) | CPM_BRG_EN; +# endif +# if (MCLK_BRG == 4) + mclk_brg = (*IM_BRGC5 & ~CPM_BRG_RST) | CPM_BRG_EN; +# endif +# if (MCLK_BRG == 5) + mclk_brg = (*IM_BRGC6 & ~CPM_BRG_RST) | CPM_BRG_EN; +# endif +# if (MCLK_BRG == 6) + mclk_brg = (*IM_BRGC7 & ~CPM_BRG_RST) | CPM_BRG_EN; +# endif +# if (MCLK_BRG == 7) + mclk_brg = (*IM_BRGC8 & ~CPM_BRG_RST) | CPM_BRG_EN; +# endif + + /* + * Obtain the enabled SCLK BRG value + */ +# if (SCLK_BRG == 0) + sclk_brg = (*IM_BRGC1 & ~CPM_BRG_RST) | CPM_BRG_EN; +# endif +# if (SCLK_BRG == 1) + sclk_brg = (*IM_BRGC2 & ~CPM_BRG_RST) | CPM_BRG_EN; +# endif +# if (SCLK_BRG == 2) + sclk_brg = (*IM_BRGC3 & ~CPM_BRG_RST) | CPM_BRG_EN; +# endif +# if (SCLK_BRG == 3) + sclk_brg = (*IM_BRGC4 & ~CPM_BRG_RST) | CPM_BRG_EN; +# endif +# if (SCLK_BRG == 4) + sclk_brg = (*IM_BRGC5 & ~CPM_BRG_RST) | CPM_BRG_EN; +# endif +# if (SCLK_BRG == 5) + sclk_brg = (*IM_BRGC6 & ~CPM_BRG_RST) | CPM_BRG_EN; +# endif +# if (SCLK_BRG == 6) + sclk_brg = (*IM_BRGC7 & ~CPM_BRG_RST) | CPM_BRG_EN; +# endif +# if (SCLK_BRG == 7) + sclk_brg = (*IM_BRGC8 & ~CPM_BRG_RST) | CPM_BRG_EN; +# endif + + /* + * Obtain the enabled LRCLK BRG value + */ +# if (LRCLK_BRG == 0) + lrclk_brg = (*IM_BRGC1 & ~CPM_BRG_RST) | CPM_BRG_EN; +# endif +# if (LRCLK_BRG == 1) + lrclk_brg = (*IM_BRGC2 & ~CPM_BRG_RST) | CPM_BRG_EN; +# endif +# if (LRCLK_BRG == 2) + lrclk_brg = (*IM_BRGC3 & ~CPM_BRG_RST) | CPM_BRG_EN; +# endif +# if (LRCLK_BRG == 3) + lrclk_brg = (*IM_BRGC4 & ~CPM_BRG_RST) | CPM_BRG_EN; +# endif +# if (LRCLK_BRG == 4) + lrclk_brg = (*IM_BRGC5 & ~CPM_BRG_RST) | CPM_BRG_EN; +# endif +# if (LRCLK_BRG == 5) + lrclk_brg = (*IM_BRGC6 & ~CPM_BRG_RST) | CPM_BRG_EN; +# endif +# if (LRCLK_BRG == 6) + lrclk_brg = (*IM_BRGC7 & ~CPM_BRG_RST) | CPM_BRG_EN; +# endif +# if (LRCLK_BRG == 7) + lrclk_brg = (*IM_BRGC8 & ~CPM_BRG_RST) | CPM_BRG_EN; +# endif + + /* Save off the real LRCLK value */ + real_lrclk_brg = lrclk_brg; + + /* Obtain the current SCLK count */ + sclk_cnt = ((sclk_brg & 0x00001FFE) >> 1) + 1; + + /* Compute the delay as a function of SCLK count */ + delay_cnt = ((sclk_cnt / 4) - 2) * 10 + 6; + if (DaqSampleRate == 43402) { + delay_cnt++; + } + + /* Clear out the count */ + temp_lrclk_brg = sclk_brg & ~0x00001FFE; + + /* Insert the count */ + temp_lrclk_brg |= ((delay_cnt + (sclk_cnt / 2) - 1) << 1) & 0x00001FFE; + + /* + * Disable interrupt and save the current state + */ + flag = disable_interrupts(); + + /* + * Enable MCLK BRG + */ +# if (MCLK_BRG == 0) + *IM_BRGC1 = mclk_brg; +# endif +# if (MCLK_BRG == 1) + *IM_BRGC2 = mclk_brg; +# endif +# if (MCLK_BRG == 2) + *IM_BRGC3 = mclk_brg; +# endif +# if (MCLK_BRG == 3) + *IM_BRGC4 = mclk_brg; +# endif +# if (MCLK_BRG == 4) + *IM_BRGC5 = mclk_brg; +# endif +# if (MCLK_BRG == 5) + *IM_BRGC6 = mclk_brg; +# endif +# if (MCLK_BRG == 6) + *IM_BRGC7 = mclk_brg; +# endif +# if (MCLK_BRG == 7) + *IM_BRGC8 = mclk_brg; +# endif + + /* + * Enable SCLK BRG + */ +# if (SCLK_BRG == 0) + *IM_BRGC1 = sclk_brg; +# endif +# if (SCLK_BRG == 1) + *IM_BRGC2 = sclk_brg; +# endif +# if (SCLK_BRG == 2) + *IM_BRGC3 = sclk_brg; +# endif +# if (SCLK_BRG == 3) + *IM_BRGC4 = sclk_brg; +# endif +# if (SCLK_BRG == 4) + *IM_BRGC5 = sclk_brg; +# endif +# if (SCLK_BRG == 5) + *IM_BRGC6 = sclk_brg; +# endif +# if (SCLK_BRG == 6) + *IM_BRGC7 = sclk_brg; +# endif +# if (SCLK_BRG == 7) + *IM_BRGC8 = sclk_brg; +# endif + + /* + * Enable LRCLK BRG (1st time - temporary) + */ +# if (LRCLK_BRG == 0) + *IM_BRGC1 = temp_lrclk_brg; +# endif +# if (LRCLK_BRG == 1) + *IM_BRGC2 = temp_lrclk_brg; +# endif +# if (LRCLK_BRG == 2) + *IM_BRGC3 = temp_lrclk_brg; +# endif +# if (LRCLK_BRG == 3) + *IM_BRGC4 = temp_lrclk_brg; +# endif +# if (LRCLK_BRG == 4) + *IM_BRGC5 = temp_lrclk_brg; +# endif +# if (LRCLK_BRG == 5) + *IM_BRGC6 = temp_lrclk_brg; +# endif +# if (LRCLK_BRG == 6) + *IM_BRGC7 = temp_lrclk_brg; +# endif +# if (LRCLK_BRG == 7) + *IM_BRGC8 = temp_lrclk_brg; +# endif + + /* + * Enable LRCLK BRG (2nd time - permanent) + */ +# if (LRCLK_BRG == 0) + *IM_BRGC1 = real_lrclk_brg; +# endif +# if (LRCLK_BRG == 1) + *IM_BRGC2 = real_lrclk_brg; +# endif +# if (LRCLK_BRG == 2) + *IM_BRGC3 = real_lrclk_brg; +# endif +# if (LRCLK_BRG == 3) + *IM_BRGC4 = real_lrclk_brg; +# endif +# if (LRCLK_BRG == 4) + *IM_BRGC5 = real_lrclk_brg; +# endif +# if (LRCLK_BRG == 5) + *IM_BRGC6 = real_lrclk_brg; +# endif +# if (LRCLK_BRG == 6) + *IM_BRGC7 = real_lrclk_brg; +# endif +# if (LRCLK_BRG == 7) + *IM_BRGC8 = real_lrclk_brg; +# endif + + /* + * Restore the Interrupt state + */ + if (flag) { + enable_interrupts(); + } +# else + /* + * Enable the clocks + */ + Daq_BRG_Enable(LRCLK_BRG); + Daq_BRG_Enable(SCLK_BRG); + Daq_BRG_Enable(MCLK_BRG); +# endif +} + +void Daq_Display_Clocks(void) + +{ + volatile immap_t *immr = (immap_t *)CFG_IMMR; + uint mclk_divisor; /* Detected MCLK divisor */ + uint sclk_divisor; /* Detected SCLK divisor */ + + printf("\nBRG:\n"); + if (immr->im_brgc4 != 0) { + printf("\tbrgc4\t0x%08x @ 0x%08x, %5d count, %d extc, %8s, MCLK\n", + immr->im_brgc4, + (uint)&(immr->im_brgc4), + Daq_BRG_Get_Count(3), + Daq_BRG_Get_ExtClk(3), + Daq_BRG_Get_ExtClk_Description(3)); + } + if (immr->im_brgc8 != 0) { + printf("\tbrgc8\t0x%08x @ 0x%08x, %5d count, %d extc, %8s, SCLK\n", + immr->im_brgc8, + (uint)&(immr->im_brgc8), + Daq_BRG_Get_Count(7), + Daq_BRG_Get_ExtClk(7), + Daq_BRG_Get_ExtClk_Description(7)); + } + if (immr->im_brgc6 != 0) { + printf("\tbrgc6\t0x%08x @ 0x%08x, %5d count, %d extc, %8s, LRCLK\n", + immr->im_brgc6, + (uint)&(immr->im_brgc6), + Daq_BRG_Get_Count(5), + Daq_BRG_Get_ExtClk(5), + Daq_BRG_Get_ExtClk_Description(5)); + } + if (immr->im_brgc1 != 0) { + printf("\tbrgc1\t0x%08x @ 0x%08x, %5d count, %d extc, %8s, SMC1\n", + immr->im_brgc1, + (uint)&(immr->im_brgc1), + Daq_BRG_Get_Count(0), + Daq_BRG_Get_ExtClk(0), + Daq_BRG_Get_ExtClk_Description(0)); + } + if (immr->im_brgc2 != 0) { + printf("\tbrgc2\t0x%08x @ 0x%08x, %5d count, %d extc, %8s, SMC2\n", + immr->im_brgc2, + (uint)&(immr->im_brgc2), + Daq_BRG_Get_Count(1), + Daq_BRG_Get_ExtClk(1), + Daq_BRG_Get_ExtClk_Description(1)); + } + if (immr->im_brgc3 != 0) { + printf("\tbrgc3\t0x%08x @ 0x%08x, %5d count, %d extc, %8s, SCC1\n", + immr->im_brgc3, + (uint)&(immr->im_brgc3), + Daq_BRG_Get_Count(2), + Daq_BRG_Get_ExtClk(2), + Daq_BRG_Get_ExtClk_Description(2)); + } + if (immr->im_brgc5 != 0) { + printf("\tbrgc5\t0x%08x @ 0x%08x, %5d count, %d extc, %8s\n", + immr->im_brgc5, + (uint)&(immr->im_brgc5), + Daq_BRG_Get_Count(4), + Daq_BRG_Get_ExtClk(4), + Daq_BRG_Get_ExtClk_Description(4)); + } + if (immr->im_brgc7 != 0) { + printf("\tbrgc7\t0x%08x @ 0x%08x, %5d count, %d extc, %8s\n", + immr->im_brgc7, + (uint)&(immr->im_brgc7), + Daq_BRG_Get_Count(6), + Daq_BRG_Get_ExtClk(6), + Daq_BRG_Get_ExtClk_Description(6)); + } + +# ifdef RUN_SCLK_ON_BRG_INT + mclk_divisor = Daq_BRG_Rate(MCLK_BRG) / Daq_BRG_Rate(SCLK_BRG); +# else + mclk_divisor = Daq_BRG_Get_Count(SCLK_BRG); +# endif +# ifdef RUN_LRCLK_ON_BRG_INT + sclk_divisor = Daq_BRG_Rate(SCLK_BRG) / Daq_BRG_Rate(LRCLK_BRG); +# else + sclk_divisor = Daq_BRG_Get_Count(LRCLK_BRG); +# endif + + printf("\nADC/DAC Clocking (%d/%d):\n", sclk_divisor, mclk_divisor); + printf("\tMCLK %8d Hz, or %3dx SCLK, or %3dx LRCLK\n", + Daq_BRG_Rate(MCLK_BRG), + mclk_divisor, + mclk_divisor * sclk_divisor); +# ifdef RUN_SCLK_ON_BRG_INT + printf("\tSCLK %8d Hz, or %3dx LRCLK\n", + Daq_BRG_Rate(SCLK_BRG), + sclk_divisor); +# else + printf("\tSCLK %8d Hz, or %3dx LRCLK\n", + Daq_BRG_Rate(MCLK_BRG) / mclk_divisor, + sclk_divisor); +# endif +# ifdef RUN_LRCLK_ON_BRG_INT + printf("\tLRCLK %8d Hz\n", + Daq_BRG_Rate(LRCLK_BRG)); +# else +# ifdef RUN_SCLK_ON_BRG_INT + printf("\tLRCLK %8d Hz\n", + Daq_BRG_Rate(SCLK_BRG) / sclk_divisor); +# else + printf("\tLRCLK %8d Hz\n", + Daq_BRG_Rate(MCLK_BRG) / (mclk_divisor * sclk_divisor)); +# endif +# endif + printf("\n"); +} diff --git a/board/sacsng/clkinit.h b/board/sacsng/clkinit.h new file mode 100755 index 0000000..011638f --- /dev/null +++ b/board/sacsng/clkinit.h @@ -0,0 +1,124 @@ +/* + * (C) Copyright 2002 + * Custom IDEAS, Inc. <www.cideas.com> + * Jon Diekema <diekema@cideas.com> + * + * 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 + */ + +#ifndef FALSE +#define FALSE 0 +#define TRUE (!FALSE) +#endif + +#define SLRCLK_EN_MASK 0x00040000 /* PA13 - SLRCLK_EN* */ + +#define MIN_SAMPLE_RATE 4000 /* Minimum sample rate */ +#define MAX_128x_SAMPLE_RATE 43402 /* Maximum 128x sample rate */ +#define MAX_64x_SAMPLE_RATE 86805 /* Maximum 64x sample rate */ + +#define KHZ ((uint)1000) +#define MHZ ((uint)(1000 * KHZ)) + +#define MCLK_BRG 3 /* MCLK, Master CLocK for the A/D & D/A */ +#define SCLK_BRG 7 /* SCLK, Sample CLocK for the A/D & D/A */ +#define LRCLK_BRG 5 /* LRCLK, L/R CLocK for the A/D & D/A */ + /* 0 == BRG1 (used for SMC1) */ + /* 1 == BRG2 (used for SMC2) */ + /* 2 == BRG3 (used for SCC1) */ + /* 3 == BRG4 (MCLK) */ + /* 4 == BRG5 */ + /* 5 == BRG6 (LRCLK) */ + /* 6 == BRG7 */ + /* 7 == BRG8 (SCLK) */ + +#define MCLK_DIVISOR 4 /* SCLK = MCLK / MCLK_DIVISOR */ +#define SCLK_DIVISOR (Daq64xSampling ? 64 : 128) + /* LRCLK = SCLK / SCLK_DIVISOR */ + +#define TIGHTEN_UP_BRG_EN_TIMING /* Tighten up the BRG enable timing */ +#define RUN_SCLK_ON_BRG_INT /* Run SCLK on BRG_INT instead of MCLK */ + /* The 8260 (Mask B.3) seems to have */ + /* problems generating SCLK from MCLK */ + /* via CLK9. */ +#define RUN_LRCLK_ON_BRG_INT /* Run LRCLK on BRG_INT instead of SCLK */ + /* The 8260 (Mask B.3) seems to have */ + /* problems generating LRCLK from SCLK */ + +#define NUM_LRCLKS_TO_STABILIZE 1 /* Number of LRCLK period (sample) */ + /* to wait for the clock to stabilize */ + +#define CPM_CLK (gd->bd->bi_cpmfreq) +#define DFBRG 4 +#define BRG_INT_CLK (CPM_CLK * 2 / DFBRG) + /* BRG = CPM * 2 / DFBRG (Sect 9.8) */ + /* BRG = CPM * 2 / 4 */ + /* BRG = CPM / 2 */ + +#define CPM_BRG_EXTC_MASK ((uint)0x0000C000) +#define CPM_BRG_EXTC_SHIFT 14 + +#define CPM_BRG_DIV16_MASK ((uint)0x00000001) +#define CPM_BRG_DIV16_SHIFT 1 + +#define CPM_BRG_EXTC_BRGCLK 0 +#define CPM_BRG_EXTC_CLK3 1 +#define CPM_BRG_EXTC_CLK9 CPM_BRG_EXTC_CLK3 +#define CPM_BRG_EXTC_CLK5 2 +#define CPM_BRG_EXTC_CLK15 CPM_BRG_EXTC_CLK5 + +#define IM_BRGC1 ((uint *)0xf00119f0) +#define IM_BRGC2 ((uint *)0xf00119f4) +#define IM_BRGC3 ((uint *)0xf00119f8) +#define IM_BRGC4 ((uint *)0xf00119fc) +#define IM_BRGC5 ((uint *)0xf00115f0) +#define IM_BRGC6 ((uint *)0xf00115f4) +#define IM_BRGC7 ((uint *)0xf00115f8) +#define IM_BRGC8 ((uint *)0xf00115fc) + +/* + * External declarations + */ + +extern int Daq64xSampling; + +extern void Daq_BRG_Reset(uint brg); +extern void Daq_BRG_Run(uint brg); + +extern void Daq_BRG_Disable(uint brg); +extern void Daq_BRG_Enable(uint brg); + +extern uint Daq_BRG_Get_Div16(uint brg); +extern void Daq_BRG_Set_Div16(uint brg, uint div16); + +extern uint Daq_BRG_Get_Count(uint brg); +extern void Daq_BRG_Set_Count(uint brg, uint brg_cnt); + +extern uint Daq_BRG_Get_ExtClk(uint brg); +extern char* Daq_BRG_Get_ExtClk_Description(uint brg); +extern void Daq_BRG_Set_ExtClk(uint brg, uint extc); + +extern uint Daq_BRG_Rate(uint brg); + +extern uint Daq_Get_SampleRate(void); + +extern void Daq_Init_Clocks(int sample_rate, int sample_64x); +extern void Daq_Stop_Clocks(void); +extern void Daq_Start_Clocks(int sample_rate); +extern void Daq_Display_Clocks(void); diff --git a/board/sacsng/config.mk b/board/sacsng/config.mk new file mode 100755 index 0000000..220b218 --- /dev/null +++ b/board/sacsng/config.mk @@ -0,0 +1,34 @@ +# +# (C) Copyright 2000 +# Sysgo Real-Time Solutions, GmbH <www.elinos.com> +# Marius Groeger <mgroeger@sysgo.de> +# +# (C) Copyright 2000 +# Wolfgang Denk, DENX Software Engineering, wd@denx.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 +# + +# +# 82xx boards +# + +TEXT_BASE = 0x40000000 + +PLATFORM_CPPFLAGS += -DTEXT_BASE=$(TEXT_BASE) -I$(TOPDIR)/board diff --git a/board/sacsng/flash.c b/board/sacsng/flash.c new file mode 100755 index 0000000..52e01de --- /dev/null +++ b/board/sacsng/flash.c @@ -0,0 +1,523 @@ +/* + * (C) Copyright 2001 + * Wolfgang Denk, DENX Software Engineering, wd@denx.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 <configs/sacsng.h> + + +#undef DEBUG + +#ifndef CFG_ENV_ADDR +#define CFG_ENV_ADDR (CFG_FLASH_BASE + CFG_ENV_OFFSET) +#endif +#ifndef CFG_ENV_SIZE +#define CFG_ENV_SIZE CFG_ENV_SECT_SIZE +#endif + + +flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */ + +/*----------------------------------------------------------------------- + * Functions + */ +static ulong flash_get_size (vu_short *addr, flash_info_t *info); +static int write_word (flash_info_t *info, ulong dest, ulong data); + +/*----------------------------------------------------------------------- + */ + +unsigned long flash_init (void) +{ + unsigned long size_b0, size_b1; + int i; + + /* Init: no FLASHes known */ + for (i=0; i<CFG_MAX_FLASH_BANKS; ++i) { + flash_info[i].flash_id = FLASH_UNKNOWN; + } + + size_b0 = flash_get_size((vu_short *)CFG_FLASH0_BASE, &flash_info[0]); + + if (flash_info[0].flash_id == FLASH_UNKNOWN) { + printf ("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n", + size_b0, size_b0<<20); + } + + size_b1 = flash_get_size((vu_short *)CFG_FLASH1_BASE, &flash_info[1]); + +#if CFG_MONITOR_BASE >= CFG_FLASH_BASE + /* monitor protection ON by default */ + flash_protect(FLAG_PROTECT_SET, + CFG_MONITOR_BASE, + CFG_MONITOR_BASE+monitor_flash_len-1, + &flash_info[0]); +#endif + +#ifdef CFG_ENV_IS_IN_FLASH + /* ENV protection ON by default */ + flash_protect(FLAG_PROTECT_SET, + CFG_ENV_ADDR, + CFG_ENV_ADDR+CFG_ENV_SIZE-1, + &flash_info[0]); +#endif + + if (size_b1) { +#if CFG_MONITOR_BASE >= CFG_FLASH_BASE + /* monitor protection ON by default */ + flash_protect(FLAG_PROTECT_SET, + CFG_MONITOR_BASE, + CFG_MONITOR_BASE+monitor_flash_len-1, + &flash_info[1]); +#endif + +#ifdef CFG_ENV_IS_IN_FLASH + /* ENV protection ON by default */ + flash_protect(FLAG_PROTECT_SET, + CFG_ENV_ADDR, + CFG_ENV_ADDR+CFG_ENV_SIZE-1, + &flash_info[1]); +#endif + } else { + flash_info[1].flash_id = FLASH_UNKNOWN; + flash_info[1].sector_count = -1; + } + + flash_info[0].size = size_b0; + flash_info[1].size = size_b1; + + /* + * We only report the primary flash for U-Boot's use. + */ + return (size_b0); +} + +/*----------------------------------------------------------------------- + */ +void flash_print_info (flash_info_t *info) +{ + int i; + + if (info->flash_id == FLASH_UNKNOWN) { + printf ("missing or unknown FLASH type\n"); + return; + } + + switch (info->flash_id & FLASH_VENDMASK) { + case FLASH_MAN_AMD: printf ("AMD "); break; + case FLASH_MAN_FUJ: printf ("FUJITSU "); break; + default: printf ("Unknown Vendor "); break; + } + + switch (info->flash_id & FLASH_TYPEMASK) { + case FLASH_AM400B: printf ("AM29LV400B (4 Mbit, bottom boot sect)\n"); + break; + case FLASH_AM400T: printf ("AM29LV400T (4 Mbit, top boot sector)\n"); + break; + case FLASH_AM800B: printf ("AM29LV800B (8 Mbit, bottom boot sect)\n"); + break; + case FLASH_AM800T: printf ("AM29LV800T (8 Mbit, top boot sector)\n"); + break; + case FLASH_AM160B: printf ("AM29LV160B (16 Mbit, bottom boot sect)\n"); + break; + case FLASH_AM160T: printf ("AM29LV160T (16 Mbit, top boot sector)\n"); + break; + case FLASH_AM320B: printf ("AM29LV320B (32 Mbit, bottom boot sect)\n"); + break; + case FLASH_AM320T: printf ("AM29LV320T (32 Mbit, top boot sector)\n"); + break; + default: printf ("Unknown Chip Type\n"); + break; + } + + printf (" Size: %ld MB in %d Sectors\n", + info->size >> 20, info->sector_count); + + printf (" Sector Start Addresses:"); + for (i=0; i<info->sector_count; ++i) { + if ((i % 5) == 0) + printf ("\n "); + printf (" %08lX%s", + info->start[i], + info->protect[i] ? " (RO)" : " " + ); + } + printf ("\n"); + return; +} + +/*----------------------------------------------------------------------- + */ + + +/*----------------------------------------------------------------------- + */ + +/* + * The following code cannot be run from FLASH! + */ + +static ulong flash_get_size (vu_short *addr, flash_info_t *info) +{ + short i; + ushort value; + ulong base = (ulong)addr; + + /* Write auto select command: read Manufacturer ID */ + addr[0x0555] = 0xAAAA; + addr[0x02AA] = 0x5555; + addr[0x0555] = 0x9090; + __asm__ __volatile__(" sync\n "); + + value = addr[0]; +#ifdef DEBUG + printf("Flash manufacturer 0x%04X\n", value); +#endif + + if(value == (ushort)AMD_MANUFACT) { + info->flash_id = FLASH_MAN_AMD; + } else if (value == (ushort)FUJ_MANUFACT) { + info->flash_id = FLASH_MAN_FUJ; + } else { +#ifdef DEBUG + printf("Unknown flash manufacturer 0x%04X\n", value); +#endif + info->flash_id = FLASH_UNKNOWN; + info->sector_count = 0; + info->size = 0; + return (0); /* no or unknown flash */ + } + + value = addr[1]; /* device ID */ +#ifdef DEBUG + printf("Flash type 0x%04X\n", value); +#endif + + if(value == (ushort)AMD_ID_LV400T) { + info->flash_id += FLASH_AM400T; + info->sector_count = 11; + info->size = 0x00080000; /* => 0.5 MB */ + } else if(value == (ushort)AMD_ID_LV400B) { + info->flash_id += FLASH_AM400B; + info->sector_count = 11; + info->size = 0x00080000; /* => 0.5 MB */ + } else if(value == (ushort)AMD_ID_LV800T) { + info->flash_id += FLASH_AM800T; + info->sector_count = 19; + info->size = 0x00100000; /* => 1 MB */ + } else if(value == (ushort)AMD_ID_LV800B) { + info->flash_id += FLASH_AM800B; + info->sector_count = 19; + info->size = 0x00100000; /* => 1 MB */ + } else if(value == (ushort)AMD_ID_LV160T) { + info->flash_id += FLASH_AM160T; + info->sector_count = 35; + info->size = 0x00200000; /* => 2 MB */ + } else if(value == (ushort)AMD_ID_LV160B) { + info->flash_id += FLASH_AM160B; + info->sector_count = 35; + info->size = 0x00200000; /* => 2 MB */ + } else if(value == (ushort)AMD_ID_LV320T) { + info->flash_id += FLASH_AM320T; + info->sector_count = 67; + info->size = 0x00400000; /* => 4 MB */ + } else if(value == (ushort)AMD_ID_LV320B) { + info->flash_id += FLASH_AM320B; + info->sector_count = 67; + info->size = 0x00400000; /* => 4 MB */ + } else { +#ifdef DEBUG + printf("Unknown flash type 0x%04X\n", value); + info->size = CFG_FLASH_SIZE; +#else + info->flash_id = FLASH_UNKNOWN; + return (0); /* => no or unknown flash */ +#endif + } + + /* set up sector start address table */ + if (info->flash_id & FLASH_BTYPE) { + /* set sector offsets for bottom boot block type */ + info->start[0] = base + 0x00000000; + info->start[1] = base + 0x00004000; + info->start[2] = base + 0x00006000; + info->start[3] = base + 0x00008000; + for (i = 4; i < info->sector_count; i++) { + info->start[i] = base + ((i - 3) * 0x00010000); + } + } else { + /* set sector offsets for top boot block type */ + i = info->sector_count - 1; + info->start[i--] = base + info->size - 0x00004000; + info->start[i--] = base + info->size - 0x00006000; + info->start[i--] = base + info->size - 0x00008000; + for (; i >= 0; i--) { + info->start[i] = base + (i * 0x00010000); + } + } + + /* check for protected sectors */ + for (i = 0; i < info->sector_count; i++) { + /* read sector protection at sector address, (A7 .. A0) = 0x02 */ + /* D0 = 1 if protected */ + addr = (volatile unsigned short *)(info->start[i]); + info->protect[i] = addr[2] & 1; + } + + /* + * Prevent writes to uninitialized FLASH. + */ + if (info->flash_id != FLASH_UNKNOWN) { + addr = (volatile unsigned short *)info->start[0]; + + } + + addr[0] = 0xF0F0; /* reset bank */ + __asm__ __volatile__(" sync\n "); + return (info->size); +} + + +/*----------------------------------------------------------------------- + */ + +int flash_erase (flash_info_t *info, int s_first, int s_last) +{ + vu_short *addr = (vu_short*)(info->start[0]); + int flag, prot, sect, l_sect; + ulong start, now, last; + + if ((s_first < 0) || (s_first > s_last)) { + if (info->flash_id == FLASH_UNKNOWN) { + printf ("- missing\n"); + } else { + printf ("- no sectors to erase\n"); + } + return 1; + } + + if ((info->flash_id == FLASH_UNKNOWN) || + (info->flash_id > FLASH_AMD_COMP)) { + printf ("Can't erase unknown flash type %08lx - aborted\n", + info->flash_id); + return 1; + } + + prot = 0; + for (sect=s_first; sect<=s_last; ++sect) { + if (info->protect[sect]) { + prot++; + } + } + + if (prot) { + printf ("- Warning: %d protected sectors will not be erased!\n", + prot); + } else { + printf ("\n"); + } + + l_sect = -1; + + /* Disable interrupts which might cause a timeout here */ + flag = disable_interrupts(); + + addr[0x0555] = 0xAAAA; + addr[0x02AA] = 0x5555; + addr[0x0555] = 0x8080; + addr[0x0555] = 0xAAAA; + addr[0x02AA] = 0x5555; + __asm__ __volatile__(" sync\n "); + + /* Start erase on unprotected sectors */ + for (sect = s_first; sect<=s_last; sect++) { + if (info->protect[sect] == 0) { /* not protected */ + addr = (vu_short*)(info->start[sect]); + addr[0] = 0x3030; + l_sect = sect; + } + } + + /* re-enable interrupts if necessary */ + if (flag) + enable_interrupts(); + + /* wait at least 80us - let's wait 1 ms */ + udelay (1000); + + /* + * We wait for the last triggered sector + */ + if (l_sect < 0) + goto DONE; + + start = get_timer (0); + last = start; + addr = (vu_short*)(info->start[l_sect]); + while ((addr[0] & 0x0080) != 0x0080) { + if ((now = get_timer(start)) > CFG_FLASH_ERASE_TOUT) { + printf ("Timeout\n"); + addr[0] = 0xF0F0; /* reset bank */ + __asm__ __volatile__(" sync\n "); + return 1; + } + /* show that we're waiting */ + if ((now - last) > 1000) { /* every second */ + putc ('.'); + last = now; + } + } + +DONE: + /* reset to read mode */ + addr = (vu_short*)info->start[0]; + addr[0] = 0xF0F0; /* reset bank */ + __asm__ __volatile__(" sync\n "); + + printf (" done\n"); + return 0; +} + +/*----------------------------------------------------------------------- + * Copy memory to flash, returns: + * 0 - OK + * 1 - write timeout + * 2 - Flash not erased + */ + +int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt) +{ + ulong cp, wp, data; + int i, l, rc; + + wp = (addr & ~3); /* get lower word aligned address */ + + /* + * handle unaligned start bytes + */ + if ((l = addr - wp) != 0) { + data = 0; + for (i=0, cp=wp; i<l; ++i, ++cp) { + data = (data << 8) | (*(uchar *)cp); + } + for (; i<4 && cnt>0; ++i) { + data = (data << 8) | *src++; + --cnt; + ++cp; + } + for (; cnt==0 && i<4; ++i, ++cp) { + data = (data << 8) | (*(uchar *)cp); + } + + if ((rc = write_word(info, wp, data)) != 0) { + return (rc); + } + wp += 4; + } + + /* + * handle word aligned part + */ + while (cnt >= 4) { + data = 0; + for (i=0; i<4; ++i) { + data = (data << 8) | *src++; + } + if ((rc = write_word(info, wp, data)) != 0) { + return (rc); + } + wp += 4; + cnt -= 4; + } + + if (cnt == 0) { + return (0); + } + + /* + * handle unaligned tail bytes + */ + data = 0; + for (i=0, cp=wp; i<4 && cnt>0; ++i, ++cp) { + data = (data << 8) | *src++; + --cnt; + } + for (; i<4; ++i, ++cp) { + data = (data << 8) | (*(uchar *)cp); + } + + return (write_word(info, wp, data)); +} + +/*----------------------------------------------------------------------- + * Write a word to Flash, returns: + * 0 - OK + * 1 - write timeout + * 2 - Flash not erased + */ +static int write_word (flash_info_t *info, ulong dest, ulong data) +{ + vu_short *addr = (vu_short*)(info->start[0]); + ulong start; + int flag; + int j; + + /* Check if Flash is (sufficiently) erased */ + if (((*(vu_long *)dest) & data) != data) { + return (2); + } + /* Disable interrupts which might cause a timeout here */ + flag = disable_interrupts(); + + /* The original routine was designed to write 32 bit words to + * 32 bit wide memory. We have 16 bit wide memory so we do + * two writes. We write the LSB first at dest+2 and then the + * MSB at dest (lousy big endian). + */ + dest += 2; + for(j = 0; j < 2; j++) { + addr[0x0555] = 0xAAAA; + addr[0x02AA] = 0x5555; + addr[0x0555] = 0xA0A0; + __asm__ __volatile__(" sync\n "); + + *((vu_short *)dest) = (ushort)data; + + /* re-enable interrupts if necessary */ + if (flag) + enable_interrupts(); + + /* data polling for D7 */ + start = get_timer (0); + while (*(vu_short *)dest != (ushort)data) { + if (get_timer(start) > CFG_FLASH_WRITE_TOUT) { + return (1); + } + } + dest -= 2; + data >>= 16; + } + return (0); +} + +/*----------------------------------------------------------------------- + */ diff --git a/board/sacsng/ioconfig.h b/board/sacsng/ioconfig.h new file mode 100755 index 0000000..be1ce7c --- /dev/null +++ b/board/sacsng/ioconfig.h @@ -0,0 +1,217 @@ +/* + * I/O Port configuration table + * + * If conf is 1, then that port pin will be configured at boot time + * according to the five values podr/pdir/ppar/psor/pdat for that entry + */ + +#ifdef SKIP +#undef SKIP +#endif + +#ifdef CONF +#undef CONF +#endif + +#ifdef DIN +#undef DIN +#endif + +#ifdef DOUT +#undef DOUT +#endif + +#ifdef GPIO +#undef GPIO +#endif + +#ifdef SPEC +#undef SPEC +#endif + +#ifdef ACTV +#undef ACTV +#endif + +#ifdef OPEN +#undef OPEN +#endif + +#define SKIP 0 /* SKIP over this port */ +#define CONF 1 /* CONFiguration the port */ + +#define DIN 0 /* PDIRx 0: Direction IN */ +#define DOUT 1 /* PDIRx 1: Direction OUT */ + +#define GPIO 0 /* PPARx 0: General Purpose I/O */ +#define SPEC 1 /* PPARx 1: dedicated to a peripheral function, */ + /* i.e. the port has a SPECial use. */ + +#define ACTV 0 /* PODRx 0: ACTiVely driven as an output */ +#define OPEN 1 /* PODRx 1: OPEN-drain driver */ + +const iop_conf_t iop_conf_tab[4][32] = { + + /* Port A configuration */ + { /* conf ppar psor pdir podr pdat */ + /* PA31 */ { CONF, GPIO, 0, DOUT, ACTV, 1 }, /* RODIS8* */ + /* PA30 */ { CONF, GPIO, 0, DOUT, ACTV, 1 }, /* RODIS7* */ + /* PA29 */ { CONF, GPIO, 0, DOUT, ACTV, 1 }, /* RODIS6* */ + /* PA28 */ { CONF, GPIO, 0, DOUT, ACTV, 1 }, /* RODIS5* */ + /* PA27 */ { CONF, GPIO, 0, DOUT, ACTV, 1 }, /* RODIS4* */ + /* PA26 */ { CONF, GPIO, 0, DOUT, ACTV, 1 }, /* RODIS3* */ + /* PA25 */ { CONF, GPIO, 0, DOUT, ACTV, 1 }, /* RODIS2* */ + /* PA24 */ { CONF, GPIO, 0, DOUT, ACTV, 1 }, /* RODIS1* */ + /* PA23 */ { CONF, GPIO, 0, DOUT, ACTV, 1 }, /* ODIS_EN* */ + /* PA22 */ { CONF, GPIO, 0, DOUT, ACTV, 1 }, /* STLED2_EN* */ + /* PA21 */ { CONF, GPIO, 0, DOUT, ACTV, 1 }, /* STLED1_EN* */ + /* PA20 */ { CONF, GPIO, 0, DOUT, ACTV, 1 }, /* PLED3_EN* */ + /* PA19 */ { CONF, GPIO, 0, DOUT, ACTV, 1 }, /* PLED2_EN* */ + /* PA18 */ { CONF, GPIO, 0, DOUT, ACTV, 0 }, /* PLED1_EN* */ + /* PA17 */ { CONF, GPIO, 0, DOUT, ACTV, 0 }, /* N/C */ + /* PA16 */ { CONF, GPIO, 0, DOUT, ACTV, 0 }, /* DAC_RST* */ + /* PA15 */ { CONF, GPIO, 0, DOUT, ACTV, 1 }, /* CH34SDATA_PU */ + /* PA14 */ { CONF, GPIO, 0, DOUT, ACTV, 1 }, /* CH12SDATA_PU */ + /* PA13 */ { CONF, GPIO, 0, DOUT, ACTV, 1 }, /* SLRCLK_EN* */ + /* PA12 */ { CONF, GPIO, 0, DOUT, ACTV, 1 }, /* MTRX_4ACDC* */ + /* PA11 */ { CONF, GPIO, 0, DOUT, ACTV, 1 }, /* MTRX_4TEDS* */ + /* PA10 */ { CONF, GPIO, 0, DOUT, ACTV, 1 }, /* MTRX_4XTDS* */ + /* PA9 */ { CONF, GPIO, 0, DOUT, ACTV, 1 }, /* MTRX_3ACDC* */ + /* PA8 */ { CONF, GPIO, 0, DOUT, ACTV, 1 }, /* MTRX_3TEDS* */ + /* PA7 */ { CONF, GPIO, 0, DOUT, ACTV, 1 }, /* MTRX_3XTDS* */ + /* PA6 */ { CONF, GPIO, 0, DOUT, ACTV, 1 }, /* MTRX_2ACDC* */ + /* PA5 */ { CONF, GPIO, 0, DOUT, ACTV, 1 }, /* MTRX_2TEDS* */ + /* PA4 */ { CONF, GPIO, 0, DOUT, ACTV, 1 }, /* MTRX_2XTDS* */ + /* PA3 */ { CONF, GPIO, 0, DOUT, ACTV, 0 }, /* N/C */ + /* PA2 */ { CONF, GPIO, 0, DOUT, ACTV, 1 }, /* MTRX_1ACDC* */ + /* PA1 */ { CONF, GPIO, 0, DOUT, ACTV, 1 }, /* MTRX_1TEDS* */ + /* PA0 */ { CONF, GPIO, 0, DOUT, ACTV, 1 } /* MTRX_1XTDS* */ + }, + + /* Port B configuration */ + { /* conf ppar psor pdir podr pdat */ + /* PB31 */ { CONF, SPEC, 0, DOUT, ACTV, 0 }, /* FCC2 MII_TX_ER */ + /* PB30 */ { CONF, SPEC, 0, DIN, ACTV, 0 }, /* FCC2 MII_RX_DV */ + /* PB29 */ { CONF, SPEC, 1, DOUT, ACTV, 0 }, /* FCC2 MII_TX_EN */ + /* PB28 */ { CONF, SPEC, 0, DIN, ACTV, 0 }, /* FCC2 MII_RX_ER */ + /* PB27 */ { CONF, SPEC, 0, DIN, ACTV, 0 }, /* FCC2 MII_COL */ + /* PB26 */ { CONF, SPEC, 0, DIN, ACTV, 0 }, /* FCC2 MII_CRS */ + /* PB25 */ { CONF, SPEC, 0, DOUT, ACTV, 0 }, /* FCC2 MII_TXD3 */ + /* PB24 */ { CONF, SPEC, 0, DOUT, ACTV, 0 }, /* FCC2 MII_TXD2 */ + /* PB23 */ { CONF, SPEC, 0, DOUT, ACTV, 0 }, /* FCC2 MII_TXD1 */ + /* PB22 */ { CONF, SPEC, 0, DOUT, ACTV, 0 }, /* FCC2 MII_TXD0 */ + /* PB21 */ { CONF, SPEC, 0, DIN, ACTV, 0 }, /* FCC2 MII_RXD0 */ + /* PB20 */ { CONF, SPEC, 0, DIN, ACTV, 0 }, /* FCC2 MII_RXD1 */ + /* PB19 */ { CONF, SPEC, 0, DIN, ACTV, 0 }, /* FCC2 MII_RXD2 */ + /* PB18 */ { CONF, SPEC, 0, DIN, ACTV, 0 }, /* FCC2 MII_RXD3 */ + /* PB17 */ { CONF, GPIO, 0, DOUT, ACTV, 0 }, /* N/C */ + /* PB16 */ { CONF, GPIO, 0, DOUT, ACTV, 0 }, /* N/C */ + /* PB15 */ { CONF, GPIO, 0, DOUT, ACTV, 0 }, /* N/C */ + /* PB14 */ { CONF, SPEC, 1, DIN, ACTV, 0 }, /* L1RXDC1, BSDATA_ADC12 */ + /* PB13 */ { CONF, GPIO, 0, DOUT, ACTV, 0 }, /* N/C */ + /* PB12 */ { CONF, SPEC, 1, DIN, ACTV, 0 }, /* L1RSYNCC1, LRCLK */ + /* PB11 */ { CONF, SPEC, 1, DIN, ACTV, 0 }, /* L1TXDD1, RSDATA_DAC12 */ + /* PB10 */ { CONF, SPEC, 1, DIN, ACTV, 0 }, /* L1RXDD1, BSDATA_ADC34 */ + /* PB9 */ { CONF, GPIO, 0, DOUT, ACTV, 0 }, /* N/C */ + /* PB8 */ { CONF, SPEC, 1, DIN, ACTV, 0 }, /* L1RSYNCD1, LRCLK */ + /* PB7 */ { CONF, GPIO, 0, DOUT, ACTV, 0 }, /* N/C */ + /* PB6 */ { CONF, GPIO, 0, DOUT, ACTV, 1 }, /* XCITE_SHDN */ + /* PB5 */ { CONF, GPIO, 0, DOUT, ACTV, 1 }, /* TRIGGER */ + /* PB4 */ { CONF, GPIO, 0, DOUT, ACTV, 0 }, /* ARM */ + /* PB3 */ { SKIP, GPIO, 0, DIN, ACTV, 0 }, /* pin doesn't exist */ + /* PB2 */ { SKIP, GPIO, 0, DIN, ACTV, 0 }, /* pin doesn't exist */ + /* PB1 */ { SKIP, GPIO, 0, DIN, ACTV, 0 }, /* pin doesn't exist */ + /* PB0 */ { SKIP, GPIO, 0, DIN, ACTV, 0 } /* pin doesn't exist */ + }, + + /* Port C */ + { /* conf ppar psor pdir podr pdat */ + /* PC31 */ { CONF, GPIO, 0, DOUT, ACTV, 0 }, /* N/C */ + /* PC30 */ { CONF, GPIO, 0, DOUT, ACTV, 0 }, /* N/C */ + /* PC29 */ { CONF, SPEC, 0, DIN, ACTV, 0 }, /* CLK3, MCLK */ + /* PC28 */ { CONF, GPIO, 0, DOUT, ACTV, 0 }, /* TOUT2* */ +#ifdef QQQ + /* PC28 */ { CONF, SPEC, 0, DOUT, ACTV, 0 }, /* TOUT2* */ +#endif + /* PC27 */ { CONF, SPEC, 0, DIN, ACTV, 0 }, /* CLK5, SCLK */ + /* PC26 */ { CONF, GPIO, 0, DOUT, ACTV, 0 }, /* N/C */ + /* PC25 */ { CONF, SPEC, 0, DIN, ACTV, 0 }, /* CLK7, SCLK */ + /* PC24 */ { CONF, GPIO, 0, DOUT, ACTV, 0 }, /* N/C */ + /* PC23 */ { CONF, SPEC, 0, DIN, ACTV, 0 }, /* CLK9, MCLK */ + /* PC22 */ { CONF, GPIO, 0, DOUT, ACTV, 0 }, /* N/C */ + /* PC21 */ { CONF, SPEC, 0, DOUT, ACTV, 0 }, /* BRGO6 (LRCLK) */ + /* PC20 */ { CONF, GPIO, 0, DOUT, ACTV, 0 }, /* N/C */ + /* PC19 */ { CONF, SPEC, 0, DIN, ACTV, 0 }, /* CLK13, MII_RXCLK */ + /* PC18 */ { CONF, SPEC, 0, DIN, ACTV, 0 }, /* CLK14, MII_TXCLK */ + /* PC17 */ { CONF, SPEC, 0, DOUT, ACTV, 0 }, /* BRGO8 (SCLK) */ + /* PC16 */ { CONF, GPIO, 0, DOUT, ACTV, 0 }, /* N/C */ + /* PC15 */ { CONF, SPEC, 0, DOUT, ACTV, 0 }, /* SMC2_TX */ + /* PC14 */ { CONF, GPIO, 0, DOUT, ACTV, 0 }, /* N/C */ + /* PC13 */ { CONF, GPIO, 0, DOUT, ACTV, 0 }, /* N/C */ + /* PC12 */ { CONF, SPEC, 0, DOUT, ACTV, 0 }, /* TDM_STRB3 */ + /* PC11 */ { CONF, GPIO, 0, DOUT, ACTV, 0 }, /* N/C */ + /* PC10 */ { CONF, SPEC, 1, DOUT, ACTV, 0 }, /* TDM_STRB4 */ + /* PC9 */ { CONF, GPIO, 0, DIN, ACTV, 0 }, /* BPDIS_IN3 */ + /* PC8 */ { CONF, GPIO, 0, DIN, ACTV, 0 }, /* BPDIS_IN2 */ + /* PC7 */ { CONF, GPIO, 0, DIN, ACTV, 0 }, /* BPDIS_IN1 */ + /* PC6 */ { CONF, GPIO, 0, DOUT, ACTV, 0 }, /* N/C */ + /* PC5 */ { CONF, GPIO, 0, DIN, ACTV, 0 }, /* BTST_IN2* */ + /* PC4 */ { CONF, GPIO, 0, DIN, ACTV, 0 }, /* BTST_IN1* */ + /* PC3 */ { CONF, GPIO, 0, DIN, ACTV, 0 }, /* MUSH_STAT */ + /* PC2 */ { CONF, GPIO, 0, DIN, ACTV, 0 }, /* OUTDRV_STAT */ + /* PC1 */ { CONF, GPIO, 0, DOUT, OPEN, 1 }, /* PHY_MDIO */ + /* PC0 */ { CONF, GPIO, 0, DOUT, ACTV, 1 }, /* PHY_MDC */ + }, + + /* Port D */ + { /* conf ppar psor pdir podr pdat */ + /* PD31 */ { CONF, SPEC, 0, DIN, ACTV, 0 }, /* SCC1_RX */ + /* PD30 */ { CONF, SPEC, 1, DOUT, ACTV, 0 }, /* SCC1_TX */ + /* PD29 */ { CONF, GPIO, 0, DOUT, ACTV, 0 }, /* N/C */ + /* PD28 */ { CONF, GPIO, 0, DOUT, ACTV, 0 }, /* N/C */ + /* PD27 */ { CONF, GPIO, 0, DOUT, ACTV, 0 }, /* N/C */ + /* PD26 */ { CONF, GPIO, 0, DOUT, ACTV, 0 }, /* N/C */ + /* PD25 */ { CONF, GPIO, 0, DOUT, ACTV, 0 }, /* N/C */ + /* PD24 */ { CONF, GPIO, 0, DOUT, ACTV, 0 }, /* N/C */ + /* PD23 */ { CONF, GPIO, 0, DOUT, ACTV, 0 }, /* N/C */ + /* PD22 */ { CONF, GPIO, 0, DOUT, ACTV, 0 }, /* N/C */ + /* PD21 */ { CONF, GPIO, 0, DOUT, ACTV, 0 }, /* N/C */ + /* PD20 */ { CONF, GPIO, 0, DOUT, ACTV, 1 }, /* SPI_ADC_CS* */ + /* PD19 */ { CONF, GPIO, 0, DOUT, ACTV, 1 }, /* SPI_DAC_CS* */ +#if defined(CONFIG_SOFT_SPI) + /* PD18 */ { CONF, GPIO, 0, DOUT, ACTV, 0 }, /* SPI_CLK */ + /* PD17 */ { CONF, GPIO, 0, DOUT, ACTV, 0 }, /* SPI_MOSI */ + /* PD16 */ { CONF, GPIO, 0, DIN, ACTV, 0 }, /* SPI_MISO */ +#else + /* PD18 */ { CONF, SPEC, 1, DOUT, ACTV, 0 }, /* SPI_CLK */ + /* PD17 */ { CONF, SPEC, 1, DOUT, ACTV, 0 }, /* SPI_MOSI */ + /* PD16 */ { CONF, SPEC, 1, DIN, ACTV, 0 }, /* SPI_MISO */ +#endif +#if defined(CONFIG_SOFT_I2C) + /* PD15 */ { CONF, GPIO, 0, DOUT, OPEN, 1 }, /* I2C_SDA */ + /* PD14 */ { CONF, GPIO, 0, DOUT, ACTV, 1 }, /* I2C_SCL */ +#else +#if defined(CONFIG_HARD_I2C) + /* PD15 */ { CONF, SPEC, 1, DIN, OPEN, 0 }, /* I2C_SDA */ + /* PD14 */ { CONF, SPEC, 1, DIN, OPEN, 0 }, /* I2C_SCL */ +#else /* normal I/O port pins */ + /* PD15 */ { CONF, GPIO, 0, DOUT, ACTV, 0 }, /* I2C_SDA */ + /* PD14 */ { CONF, GPIO, 0, DOUT, ACTV, 0 }, /* I2C_SCL */ +#endif +#endif + /* PD13 */ { CONF, SPEC, 0, DOUT, ACTV, 0 }, /* TDM_STRB1 */ + /* PD12 */ { CONF, SPEC, 0, DOUT, ACTV, 0 }, /* TDM_STRB2 */ + /* PD11 */ { CONF, GPIO, 0, DOUT, ACTV, 0 }, /* N/C */ + /* PD10 */ { CONF, SPEC, 1, DOUT, ACTV, 0 }, /* BRGO4 (MCLK) */ + /* PD9 */ { CONF, SPEC, 0, DOUT, ACTV, 0 }, /* SMC1_TX */ + /* PD8 */ { CONF, SPEC, 0, DIN, ACTV, 0 }, /* SMC1_RX */ + /* PD7 */ { CONF, GPIO, 0, DOUT, ACTV, 1 }, /* N/C */ + /* PD6 */ { CONF, GPIO, 0, DOUT, ACTV, 1 }, /* N/C */ + /* PD5 */ { CONF, GPIO, 0, DOUT, ACTV, 1 }, /* N/C */ + /* PD4 */ { CONF, SPEC, 1, DOUT, ACTV, 1 }, /* SMC2_RX */ + /* PD3 */ { SKIP, GPIO, 0, DIN, ACTV, 0 }, /* pin doesn't exist */ + /* PD2 */ { SKIP, GPIO, 0, DIN, ACTV, 0 }, /* pin doesn't exist */ + /* PD1 */ { SKIP, GPIO, 0, DIN, ACTV, 0 }, /* pin doesn't exist */ + /* PD0 */ { SKIP, GPIO, 0, DIN, ACTV, 0 } /* pin doesn't exist */ + } +}; diff --git a/board/sacsng/sacsng.c b/board/sacsng/sacsng.c new file mode 100755 index 0000000..e50b747 --- /dev/null +++ b/board/sacsng/sacsng.c @@ -0,0 +1,890 @@ +/* + * (C) Copyright 2002 + * Custom IDEAS, Inc. <www.cideas.com> + * Gerald Van Baren <vanbaren@cideas.com> + * + * 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 <asm/u-boot.h> +#include <common.h> +#include <ioports.h> +#include <mpc8260.h> +#include <i2c.h> +#include <spi.h> +#include <command.h> + +#ifdef CONFIG_SHOW_BOOT_PROGRESS +#include <status_led.h> +#endif + +#ifdef CONFIG_ETHER_LOOPBACK_TEST +extern void eth_loopback_test(void); +#endif /* CONFIG_ETHER_LOOPBACK_TEST */ + +extern int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]); + +#include "clkinit.h" +#include "ioconfig.h" /* I/O configuration table */ + +/* + * PBI Page Based Interleaving + * PSDMR_PBI page based interleaving + * 0 bank based interleaving + * External Address Multiplexing (EAMUX) adds a clock to address cycles + * (this can help with marginal board layouts) + * PSDMR_EAMUX adds a clock + * 0 no extra clock + * Buffer Command (BUFCMD) adds a clock to command cycles. + * PSDMR_BUFCMD adds a clock + * 0 no extra clock + */ +#define CONFIG_PBI PSDMR_PBI +#define PESSIMISTIC_SDRAM 0 +#define EAMUX 0 /* EST requires EAMUX */ +#define BUFCMD 0 + +/* + * ADC/DAC Defines: + */ +#define INITIAL_SAMPLE_RATE 10016 /* Initial Daq sample rate */ +#define INITIAL_RIGHT_JUST 0 /* Initial DAC right justification */ +#define INITIAL_MCLK_DIVIDE 0 /* Initial MCLK Divide */ +#define INITIAL_SAMPLE_64X 1 /* Initial 64x clocking mode */ +#define INITIAL_SAMPLE_128X 0 /* Initial 128x clocking mode */ + +/* + * ADC Defines: + */ +#define I2C_ADC_1_ADDR 0x0E /* I2C Address of the ADC #1 */ +#define I2C_ADC_2_ADDR 0x0F /* I2C Address of the ADC #2 */ + +#define ADC_SDATA1_MASK 0x00020000 /* PA14 - CH12SDATA_PU */ +#define ADC_SDATA2_MASK 0x00010000 /* PA15 - CH34SDATA_PU */ + +#define ADC_VREF_CAP 100 /* VREF capacitor in uF */ +#define ADC_INITIAL_DELAY (10 * ADC_VREF_CAP) /* 10 usec per uF, in usec */ +#define ADC_SDATA_DELAY 100 /* ADC SDATA release delay in usec */ +#define ADC_CAL_DELAY (1000000 / INITIAL_SAMPLE_RATE * 4500) + /* Wait at least 4100 LRCLK's */ + +#define ADC_REG1_FRAME_START 0x80 /* Frame start */ +#define ADC_REG1_GROUND_CAL 0x40 /* Ground calibration enable */ +#define ADC_REG1_ANA_MOD_PDOWN 0x20 /* Analog modulator section in power down */ +#define ADC_REG1_DIG_MOD_PDOWN 0x10 /* Digital modulator section in power down */ + +#define ADC_REG2_128x 0x80 /* Oversample at 128x */ +#define ADC_REG2_CAL 0x40 /* System calibration enable */ +#define ADC_REG2_CHANGE_SIGN 0x20 /* Change sign enable */ +#define ADC_REG2_LR_DISABLE 0x10 /* Left/Right output disable */ +#define ADC_REG2_HIGH_PASS_DIS 0x08 /* High pass filter disable */ +#define ADC_REG2_SLAVE_MODE 0x04 /* Slave mode */ +#define ADC_REG2_DFS 0x02 /* Digital format select */ +#define ADC_REG2_MUTE 0x01 /* Mute */ + +#define ADC_REG7_ADDR_ENABLE 0x80 /* Address enable */ +#define ADC_REG7_PEAK_ENABLE 0x40 /* Peak enable */ +#define ADC_REG7_PEAK_UPDATE 0x20 /* Peak update */ +#define ADC_REG7_PEAK_FORMAT 0x10 /* Peak display format */ +#define ADC_REG7_DIG_FILT_PDOWN 0x04 /* Digital filter power down enable */ +#define ADC_REG7_FIR2_IN_EN 0x02 /* External FIR2 input enable */ +#define ADC_REG7_PSYCHO_EN 0x01 /* External pyscho filter input enable */ + +/* + * DAC Defines: + */ + +#define I2C_DAC_ADDR 0x11 /* I2C Address of the DAC */ + +#define DAC_RST_MASK 0x00008000 /* PA16 - DAC_RST* */ +#define DAC_RESET_DELAY 100 /* DAC reset delay in usec */ +#define DAC_INITIAL_DELAY 5000 /* DAC initialization delay in usec */ + +#define DAC_REG1_AMUTE 0x80 /* Auto-mute */ + +#define DAC_REG1_LEFT_JUST_24_BIT (0 << 4) /* Fmt 0: Left justified 24 bit */ +#define DAC_REG1_I2S_24_BIT (1 << 4) /* Fmt 1: I2S up to 24 bit */ +#define DAC_REG1_RIGHT_JUST_16BIT (2 << 4) /* Fmt 2: Right justified 16 bit */ +#define DAC_REG1_RIGHT_JUST_24BIT (3 << 4) /* Fmt 3: Right justified 24 bit */ +#define DAC_REG1_RIGHT_JUST_20BIT (4 << 4) /* Fmt 4: Right justified 20 bit */ +#define DAC_REG1_RIGHT_JUST_18BIT (5 << 4) /* Fmt 5: Right justified 18 bit */ + +#define DAC_REG1_DEM_NO (0 << 2) /* No De-emphasis */ +#define DAC_REG1_DEM_44KHZ (1 << 2) /* 44.1KHz De-emphasis */ +#define DAC_REG1_DEM_48KHZ (2 << 2) /* 48KHz De-emphasis */ +#define DAC_REG1_DEM_32KHZ (3 << 2) /* 32KHz De-emphasis */ + +#define DAC_REG1_SINGLE 0 /* 4- 50KHz sample rate */ +#define DAC_REG1_DOUBLE 1 /* 50-100KHz sample rate */ +#define DAC_REG1_QUAD 2 /* 100-200KHz sample rate */ +#define DAC_REG1_DSD 3 /* Direct Stream Data, DSD */ + +#define DAC_REG5_INVERT_A 0x80 /* Invert channel A */ +#define DAC_REG5_INVERT_B 0x40 /* Invert channel B */ +#define DAC_REG5_I2C_MODE 0x20 /* Control port (I2C) mode */ +#define DAC_REG5_POWER_DOWN 0x10 /* Power down mode */ +#define DAC_REG5_MUTEC_A_B 0x08 /* Mutec A=B */ +#define DAC_REG5_FREEZE 0x04 /* Freeze */ +#define DAC_REG5_MCLK_DIV 0x02 /* MCLK divide by 2 */ +#define DAC_REG5_RESERVED 0x01 /* Reserved */ + +/* ------------------------------------------------------------------------- */ + +/* + * Check Board Identity: + */ + +int checkboard(void) +{ + printf ("SACSng\n"); + + return 0; +} + +/* ------------------------------------------------------------------------- */ + +long int initdram(int board_type) +{ + volatile immap_t *immap = (immap_t *)CFG_IMMR; + volatile memctl8260_t *memctl = &immap->im_memctl; + volatile uchar c = 0; + volatile uchar *ramaddr = (uchar *)(CFG_SDRAM_BASE + 0x8); + uint psdmr = CFG_PSDMR; + int i; + uint psrt = 14; /* for no SPD */ + uint chipselects = 1; /* for no SPD */ + uint sdram_size = CFG_SDRAM0_SIZE * 1024 * 1024; /* for no SPD */ + uint or = CFG_OR2_PRELIM; /* for no SPD */ +#ifdef SDRAM_SPD_ADDR + uint data_width; + uint rows; + uint banks; + uint cols; + uint caslatency; + uint width; + uint rowst; + uint sdam; + uint bsma; + uint sda10; + u_char spd_size; + u_char data; + u_char cksum; + int j; +#endif + +#ifdef SDRAM_SPD_ADDR + /* Keep the compiler from complaining about potentially uninitialized vars */ + data_width = chipselects = rows = banks = cols = caslatency = psrt = 0; + + /* + * Read the SDRAM SPD EEPROM via I2C. + */ + i2c_read(SDRAM_SPD_ADDR, 0, 1, &data, 1); + spd_size = data; + cksum = data; + for(j = 1; j < 64; j++) { /* read only the checksummed bytes */ + /* note: the I2C address autoincrements when alen == 0 */ + i2c_read(SDRAM_SPD_ADDR, 0, 0, &data, 1); + if(j == 5) chipselects = data & 0x0F; + else if(j == 6) data_width = data; + else if(j == 7) data_width |= data << 8; + else if(j == 3) rows = data & 0x0F; + else if(j == 4) cols = data & 0x0F; + else if(j == 12) { + /* + * Refresh rate: this assumes the prescaler is set to + * approximately 1uSec per tick. + */ + switch(data & 0x7F) { + default: + case 0: psrt = 14 ; /* 15.625uS */ break; + case 1: psrt = 2; /* 3.9uS */ break; + case 2: psrt = 6; /* 7.8uS */ break; + case 3: psrt = 29; /* 31.3uS */ break; + case 4: psrt = 60; /* 62.5uS */ break; + case 5: psrt = 120; /* 125uS */ break; + } + } + else if(j == 17) banks = data; + else if(j == 18) { + caslatency = 3; /* default CL */ +#if(PESSIMISTIC_SDRAM) + if((data & 0x04) != 0) caslatency = 3; + else if((data & 0x02) != 0) caslatency = 2; + else if((data & 0x01) != 0) caslatency = 1; +#else + if((data & 0x01) != 0) caslatency = 1; + else if((data & 0x02) != 0) caslatency = 2; + else if((data & 0x04) != 0) caslatency = 3; +#endif + else { + printf ("WARNING: Unknown CAS latency 0x%02X, using 3\n", + data); + } + } + else if(j == 63) { + if(data != cksum) { + printf ("WARNING: Configuration data checksum failure:" + " is 0x%02x, calculated 0x%02x\n", + data, cksum); + } + } + cksum += data; + } + + /* We don't trust CL less than 2 (only saw it on an old 16MByte DIMM) */ + if(caslatency < 2) { + printf("WARNING: CL was %d, forcing to 2\n", caslatency); + caslatency = 2; + } + if(rows > 14) { + printf("WARNING: This doesn't look good, rows = %d, should be <= 14\n", rows); + rows = 14; + } + if(cols > 11) { + printf("WARNING: This doesn't look good, columns = %d, should be <= 11\n", cols); + cols = 11; + } + + if((data_width != 64) && (data_width != 72)) + { + printf("WARNING: SDRAM width unsupported, is %d, expected 64 or 72.\n", + data_width); + } + width = 3; /* 2^3 = 8 bytes = 64 bits wide */ + /* + * Convert banks into log2(banks) + */ + if (banks == 2) banks = 1; + else if(banks == 4) banks = 2; + else if(banks == 8) banks = 3; + + sdram_size = 1 << (rows + cols + banks + width); + +#if(CONFIG_PBI == 0) /* bank-based interleaving */ + rowst = ((32 - 6) - (rows + cols + width)) * 2; +#else + rowst = 32 - (rows + banks + cols + width); +#endif + + or = ~(sdram_size - 1) | /* SDAM address mask */ + ((banks-1) << 13) | /* banks per device */ + (rowst << 9) | /* rowst */ + ((rows - 9) << 6); /* numr */ + + memctl->memc_or2 = or; + + /* + * SDAM specifies the number of columns that are multiplexed + * (reference AN2165/D), defined to be (columns - 6) for page + * interleave, (columns - 8) for bank interleave. + * + * BSMA is 14 - max(rows, cols). The bank select lines come + * into play above the highest "address" line going into the + * the SDRAM. + */ +#if(CONFIG_PBI == 0) /* bank-based interleaving */ + sdam = cols - 8; + bsma = ((31 - width) - 14) - ((rows > cols) ? rows : cols); + sda10 = sdam + 2; +#else + sdam = cols - 6; + bsma = ((31 - width) - 14) - ((rows > cols) ? rows : cols); + sda10 = sdam; +#endif +#if(PESSIMISTIC_SDRAM) + psdmr = (CONFIG_PBI |\ + PSDMR_RFEN |\ + PSDMR_RFRC_16_CLK |\ + PSDMR_PRETOACT_8W |\ + PSDMR_ACTTORW_8W |\ + PSDMR_WRC_4C |\ + PSDMR_EAMUX |\ + PSDMR_BUFCMD) |\ + caslatency |\ + ((caslatency - 1) << 6) | /* LDOTOPRE is CL - 1 */ \ + (sdam << 24) |\ + (bsma << 21) |\ + (sda10 << 18); +#else + psdmr = (CONFIG_PBI |\ + PSDMR_RFEN |\ + PSDMR_RFRC_7_CLK |\ + PSDMR_PRETOACT_3W | /* 1 for 7E parts (fast PC-133) */ \ + PSDMR_ACTTORW_2W | /* 1 for 7E parts (fast PC-133) */ \ + PSDMR_WRC_1C | /* 1 clock + 7nSec */ + EAMUX |\ + BUFCMD) |\ + caslatency |\ + ((caslatency - 1) << 6) | /* LDOTOPRE is CL - 1 */ \ + (sdam << 24) |\ + (bsma << 21) |\ + (sda10 << 18); +#endif +#endif + + /* + * Quote from 8260 UM (10.4.2 SDRAM Power-On Initialization, 10-35): + * + * "At system reset, initialization software must set up the + * programmable parameters in the memory controller banks registers + * (ORx, BRx, P/LSDMR). After all memory parameters are configured, + * system software should execute the following initialization sequence + * for each SDRAM device. + * + * 1. Issue a PRECHARGE-ALL-BANKS command + * 2. Issue eight CBR REFRESH commands + * 3. Issue a MODE-SET command to initialize the mode register + * + * Quote from Micron MT48LC8M16A2 data sheet: + * + * "...the SDRAM requires a 100uS delay prior to issuing any + * command other than a COMMAND INHIBIT or NOP. Starting at some + * point during this 100uS period and continuing at least through + * the end of this period, COMMAND INHIBIT or NOP commands should + * be applied." + * + * "Once the 100uS delay has been satisfied with at least one COMMAND + * INHIBIT or NOP command having been applied, a /PRECHARGE command/ + * should be applied. All banks must then be precharged, thereby + * placing the device in the all banks idle state." + * + * "Once in the idle state, /two/ AUTO REFRESH cycles must be + * performed. After the AUTO REFRESH cycles are complete, the + * SDRAM is ready for mode register programming." + * + * (/emphasis/ mine, gvb) + * + * The way I interpret this, Micron start up sequence is: + * 1. Issue a PRECHARGE-BANK command (initial precharge) + * 2. Issue a PRECHARGE-ALL-BANKS command ("all banks ... precharged") + * 3. Issue two (presumably, doing eight is OK) CBR REFRESH commands + * 4. Issue a MODE-SET command to initialize the mode register + * + * -------- + * + * The initial commands are executed by setting P/LSDMR[OP] and + * accessing the SDRAM with a single-byte transaction." + * + * The appropriate BRx/ORx registers have already been set when we + * get here. The SDRAM can be accessed at the address CFG_SDRAM_BASE. + */ + + memctl->memc_mptpr = CFG_MPTPR; + memctl->memc_psrt = psrt; + + memctl->memc_psdmr = psdmr | PSDMR_OP_PREA; + *ramaddr = c; + + memctl->memc_psdmr = psdmr | PSDMR_OP_CBRR; + for (i = 0; i < 8; i++) + *ramaddr = c; + + memctl->memc_psdmr = psdmr | PSDMR_OP_MRW; + *ramaddr = c; + + memctl->memc_psdmr = psdmr | PSDMR_OP_NORM | PSDMR_RFEN; + *ramaddr = c; + + /* + * Do it a second time for the second set of chips if the DIMM has + * two chip selects (double sided). + */ + if(chipselects > 1) { + ramaddr += sdram_size; + + memctl->memc_br3 = CFG_BR3_PRELIM + sdram_size; + memctl->memc_or3 = or; + + memctl->memc_psdmr = psdmr | PSDMR_OP_PREA; + *ramaddr = c; + + memctl->memc_psdmr = psdmr | PSDMR_OP_CBRR; + for (i = 0; i < 8; i++) + *ramaddr = c; + + memctl->memc_psdmr = psdmr | PSDMR_OP_MRW; + *ramaddr = c; + + memctl->memc_psdmr = psdmr | PSDMR_OP_NORM | PSDMR_RFEN; + *ramaddr = c; + } + + /* return total ram size */ + return (sdram_size * chipselects); +} + +/*----------------------------------------------------------------------- + * Board Control Functions + */ +void board_poweroff (void) +{ + while (1); /* hang forever */ +} + + +#ifdef CONFIG_MISC_INIT_R +/* ------------------------------------------------------------------------- */ +int misc_init_r(void) +{ + /* + * Note: iop is used by the I2C macros, and iopa by the ADC/DAC initialization. + */ + volatile ioport_t *iopa = ioport_addr((immap_t *)CFG_IMMR, 0 /* port A */); + volatile ioport_t *iop = ioport_addr((immap_t *)CFG_IMMR, I2C_PORT); + + int reg; /* I2C register value */ + char *ep; /* Environment pointer */ + char str_buf[12] ; /* sprintf output buffer */ + int sample_rate; /* ADC/DAC sample rate */ + int sample_64x; /* Use 64/4 clocking for the ADC/DAC */ + int sample_128x; /* Use 128/4 clocking for the ADC/DAC */ + int right_just; /* Is the data to the DAC right justified? */ + int mclk_divide; /* MCLK Divide */ + int quiet; /* Quiet or minimal output mode */ + + quiet = 0; + if ((ep = getenv("quiet")) != NULL) { + quiet = simple_strtol(ep, NULL, 10); + } + else { + setenv("quiet", "0"); + } + + /* + * SACSng custom initialization: + * Start the ADC and DAC clocks, since the Crystal parts do not + * work on the I2C bus until the clocks are running. + */ + + sample_rate = INITIAL_SAMPLE_RATE; + if ((ep = getenv("DaqSampleRate")) != NULL) { + sample_rate = simple_strtol(ep, NULL, 10); + } + + sample_64x = INITIAL_SAMPLE_64X; + sample_128x = INITIAL_SAMPLE_128X; + if ((ep = getenv("Daq64xSampling")) != NULL) { + sample_64x = simple_strtol(ep, NULL, 10); + if (sample_64x) { + sample_128x = 0; + } + else { + sample_128x = 1; + } + } + else { + if ((ep = getenv("Daq128xSampling")) != NULL) { + sample_128x = simple_strtol(ep, NULL, 10); + if (sample_128x) { + sample_64x = 0; + } + else { + sample_64x = 1; + } + } + } + + /* + * Stop the clocks and wait for at least 1 LRCLK period + * to make sure the clocking has really stopped. + */ + Daq_Stop_Clocks(); + udelay((1000000 / sample_rate) * NUM_LRCLKS_TO_STABILIZE); + + /* + * Initialize the clocks with the new rates + */ + Daq_Init_Clocks(sample_rate, sample_64x); + sample_rate = Daq_Get_SampleRate(); + + /* + * Start the clocks and wait for at least 1 LRCLK period + * to make sure the clocking has become stable. + */ + Daq_Start_Clocks(sample_rate); + udelay((1000000 / sample_rate) * NUM_LRCLKS_TO_STABILIZE); + + sprintf(str_buf, "%d", sample_rate); + setenv("DaqSampleRate", str_buf); + + if (sample_64x) { + setenv("Daq64xSampling", "1"); + setenv("Daq128xSampling", NULL); + } + else { + setenv("Daq64xSampling", NULL); + setenv("Daq128xSampling", "1"); + } + + /* + * Display the ADC/DAC clocking information + */ + if (!quiet) { + Daq_Display_Clocks(); + } + + /* + * Determine the DAC data justification + */ + + right_just = INITIAL_RIGHT_JUST; + if ((ep = getenv("DaqDACRightJustified")) != NULL) { + right_just = simple_strtol(ep, NULL, 10); + } + + sprintf(str_buf, "%d", right_just); + setenv("DaqDACRightJustified", str_buf); + + /* + * Determine the DAC MCLK Divide + */ + + mclk_divide = INITIAL_MCLK_DIVIDE; + if ((ep = getenv("DaqDACMClockDivide")) != NULL) { + mclk_divide = simple_strtol(ep, NULL, 10); + } + + sprintf(str_buf, "%d", mclk_divide); + setenv("DaqDACMClockDivide", str_buf); + + /* + * Initializing the I2C address in the Crystal A/Ds: + * + * 1) Wait for VREF cap to settle (10uSec per uF) + * 2) Release pullup on SDATA + * 3) Write the I2C address to register 6 + * 4) Enable address matching by setting the MSB in register 7 + */ + + if (!quiet) { + printf("Initializing the ADC...\n"); + } + udelay(ADC_INITIAL_DELAY); /* 10uSec per uF of VREF cap */ + + iopa->pdat &= ~ADC_SDATA1_MASK; /* release SDATA1 */ + udelay(ADC_SDATA_DELAY); /* arbitrary settling time */ + + i2c_reg_write(0x00, 0x06, I2C_ADC_1_ADDR); /* set address */ + i2c_reg_write(I2C_ADC_1_ADDR, 0x07, /* turn on ADDREN */ + ADC_REG7_ADDR_ENABLE); + + i2c_reg_write(I2C_ADC_1_ADDR, 0x02, /* 128x, slave mode, !HPEN */ + (sample_64x ? 0 : ADC_REG2_128x) | + ADC_REG2_HIGH_PASS_DIS | + ADC_REG2_SLAVE_MODE); + + reg = i2c_reg_read(I2C_ADC_1_ADDR, 0x06) & 0x7F; + if(reg != I2C_ADC_1_ADDR) + printf("Init of ADC U10 failed: address is 0x%02X should be 0x%02X\n", + reg, I2C_ADC_1_ADDR); + + iopa->pdat &= ~ADC_SDATA2_MASK; /* release SDATA2 */ + udelay(ADC_SDATA_DELAY); /* arbitrary settling time */ + + i2c_reg_write(0x00, 0x06, I2C_ADC_2_ADDR); /* set address (do not set ADDREN yet) */ + + i2c_reg_write(I2C_ADC_2_ADDR, 0x02, /* 64x, slave mode, !HPEN */ + (sample_64x ? 0 : ADC_REG2_128x) | + ADC_REG2_HIGH_PASS_DIS | + ADC_REG2_SLAVE_MODE); + + reg = i2c_reg_read(I2C_ADC_2_ADDR, 0x06) & 0x7F; + if(reg != I2C_ADC_2_ADDR) + printf("Init of ADC U15 failed: address is 0x%02X should be 0x%02X\n", + reg, I2C_ADC_2_ADDR); + + i2c_reg_write(I2C_ADC_1_ADDR, 0x01, /* set FSTART and GNDCAL */ + ADC_REG1_FRAME_START | + ADC_REG1_GROUND_CAL); + + i2c_reg_write(I2C_ADC_1_ADDR, 0x02, /* Start calibration */ + (sample_64x ? 0 : ADC_REG2_128x) | + ADC_REG2_CAL | + ADC_REG2_HIGH_PASS_DIS | + ADC_REG2_SLAVE_MODE); + + udelay(ADC_CAL_DELAY); /* a minimum of 4100 LRCLKs */ + i2c_reg_write(I2C_ADC_1_ADDR, 0x01, 0x00); /* remove GNDCAL */ + + /* + * Now that we have synchronized the ADC's, enable address + * selection on the second ADC as well as the first. + */ + i2c_reg_write(I2C_ADC_2_ADDR, 0x07, ADC_REG7_ADDR_ENABLE); + + /* + * Initialize the Crystal DAC + * + * Two of the config lines are used for I2C so we have to set them + * to the proper initialization state without inadvertantly + * sending an I2C "start" sequence. When we bring the I2C back to + * the normal state, we send an I2C "stop" sequence. + */ + if (!quiet) { + printf("Initializing the DAC...\n"); + } + + /* + * Bring the I2C clock and data lines low for initialization + */ + I2C_SCL(0); + I2C_DELAY; + I2C_SDA(0); + I2C_ACTIVE; + I2C_DELAY; + + /* Reset the DAC */ + iopa->pdat &= ~DAC_RST_MASK; + udelay(DAC_RESET_DELAY); + + /* Release the DAC reset */ + iopa->pdat |= DAC_RST_MASK; + udelay(DAC_INITIAL_DELAY); + + /* + * Cause the DAC to: + * Enable control port (I2C mode) + * Going into power down + */ + i2c_reg_write(I2C_DAC_ADDR, 0x05, + DAC_REG5_I2C_MODE | + DAC_REG5_POWER_DOWN); + + /* + * Cause the DAC to: + * Enable control port (I2C mode) + * Going into power down + * . MCLK divide by 1 + * . MCLK divide by 2 + */ + i2c_reg_write(I2C_DAC_ADDR, 0x05, + DAC_REG5_I2C_MODE | + DAC_REG5_POWER_DOWN | + (mclk_divide ? DAC_REG5_MCLK_DIV : 0)); + + /* + * Cause the DAC to: + * Auto-mute disabled + * . Format 0, left justified 24 bits + * . Format 3, right justified 24 bits + * No de-emphasis + * . Single speed mode + * . Double speed mode + */ + i2c_reg_write(I2C_DAC_ADDR, 0x01, + (right_just ? DAC_REG1_RIGHT_JUST_24BIT : + DAC_REG1_LEFT_JUST_24_BIT) | + DAC_REG1_DEM_NO | + (sample_rate >= 50000 ? DAC_REG1_DOUBLE : DAC_REG1_SINGLE)); + + sprintf(str_buf, "%d", + sample_rate >= 50000 ? DAC_REG1_DOUBLE : DAC_REG1_SINGLE); + setenv("DaqDACFunctionalMode", str_buf); + + /* + * Cause the DAC to: + * Enable control port (I2C mode) + * Remove power down + * . MCLK divide by 1 + * . MCLK divide by 2 + */ + i2c_reg_write(I2C_DAC_ADDR, 0x05, + DAC_REG5_I2C_MODE | + (mclk_divide ? DAC_REG5_MCLK_DIV : 0)); + + /* + * Create a I2C stop condition: + * low->high on data while clock is high. + */ + I2C_SCL(1); + I2C_DELAY; + I2C_SDA(1); + I2C_DELAY; + I2C_TRISTATE; + + if (!quiet) { + printf("\n"); + } + +#ifdef CONFIG_ETHER_LOOPBACK_TEST + /* + * Run the Ethernet loopback test + */ + eth_loopback_test (); +#endif /* CONFIG_ETHER_LOOPBACK_TEST */ + +#ifdef CONFIG_SHOW_BOOT_PROGRESS + /* + * Turn off the RED fail LED now that we are up and running. + */ + status_led_set(STATUS_LED_RED, STATUS_LED_OFF); +#endif + + return 0; +} + +#ifdef CONFIG_SHOW_BOOT_PROGRESS +/* + * Show boot status: flash the LED if something goes wrong, indicating + * that last thing that worked and thus, by implication, what is broken. + * + * This stores the last OK value in RAM so this will not work properly + * before RAM is initialized. Since it is being used for indicating + * boot status (i.e. after RAM is initialized), that is OK. + */ +static void flash_code(uchar number, uchar modulo, uchar digits) +{ + int j; + + /* + * Recursively do upper digits. + */ + if(digits > 1) { + flash_code(number / modulo, modulo, digits - 1); + } + + number = number % modulo; + + /* + * Zero is indicated by one long flash (dash). + */ + if(number == 0) { + status_led_set(STATUS_LED_BOOT, STATUS_LED_ON); + udelay(1000000); + status_led_set(STATUS_LED_BOOT, STATUS_LED_OFF); + udelay(200000); + } else { + /* + * Non-zero is indicated by short flashes, one per count. + */ + for(j = 0; j < number; j++) { + status_led_set(STATUS_LED_BOOT, STATUS_LED_ON); + udelay(100000); + status_led_set(STATUS_LED_BOOT, STATUS_LED_OFF); + udelay(200000); + } + } + /* + * Inter-digit pause: we've already waited 200 mSec, wait 1 sec total + */ + udelay(700000); +} + +static int last_boot_progress; + +void show_boot_progress (int status) +{ + int i,j; + if(status > 0) { + last_boot_progress = status; + } else { + /* + * If a specific failure code is given, flash this code + * else just use the last success code we've seen + */ + if(status < -1) + last_boot_progress = -status; + + /* + * Flash this code 5 times + */ + for(j=0; j<5; j++) { + /* + * Houston, we have a problem. + * Blink the last OK status which indicates where things failed. + */ + status_led_set(STATUS_LED_RED, STATUS_LED_ON); + flash_code(last_boot_progress, 5, 3); + + /* + * Delay 5 seconds between repetitions, + * with the fault LED blinking + */ + for(i=0; i<5; i++) { + status_led_set(STATUS_LED_RED, STATUS_LED_OFF); + udelay(500000); + status_led_set(STATUS_LED_RED, STATUS_LED_ON); + udelay(500000); + } + } + + /* + * Reset the board to retry initialization. + */ + do_reset (NULL, 0, 0, NULL); + } +} +#endif /* CONFIG_SHOW_BOOT_PROGRESS */ + + +/* + * The following are used to control the SPI chip selects for the SPI command. + */ +#if (CONFIG_COMMANDS & CFG_CMD_SPI) + +#define SPI_ADC_CS_MASK 0x00000800 +#define SPI_DAC_CS_MASK 0x00001000 + +void spi_adc_chipsel(int cs) +{ + volatile ioport_t *iopd = ioport_addr((immap_t *)CFG_IMMR, 3 /* port D */); + + if(cs) + iopd->pdat &= ~SPI_ADC_CS_MASK; /* activate the chip select */ + else + iopd->pdat |= SPI_ADC_CS_MASK; /* deactivate the chip select */ +} + +void spi_dac_chipsel(int cs) +{ + volatile ioport_t *iopd = ioport_addr((immap_t *)CFG_IMMR, 3 /* port D */); + + if(cs) + iopd->pdat &= ~SPI_DAC_CS_MASK; /* activate the chip select */ + else + iopd->pdat |= SPI_DAC_CS_MASK; /* deactivate the chip select */ +} + +/* + * The SPI command uses this table of functions for controlling the SPI + * chip selects: it calls the appropriate function to control the SPI + * chip selects. + */ +spi_chipsel_type spi_chipsel[] = { + spi_adc_chipsel, + spi_dac_chipsel +}; +int spi_chipsel_cnt = sizeof(spi_chipsel) / sizeof(spi_chipsel[0]); + +#endif /* CFG_CMD_SPI */ + +#endif /* CONFIG_MISC_INIT_R */ + +#ifdef CONFIG_POST +/* + * Returns 1 if keys pressed to start the power-on long-running tests + * Called from board_init_f(). + */ +int post_hotkeys_pressed(void) +{ + return 0; /* No hotkeys supported */ +} + +#endif diff --git a/board/sacsng/u-boot.lds b/board/sacsng/u-boot.lds new file mode 100755 index 0000000..9e623d0 --- /dev/null +++ b/board/sacsng/u-boot.lds @@ -0,0 +1,125 @@ +/* + * (C) Copyright 2000 + * Wolfgang Denk, DENX Software Engineering, wd@denx.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 + */ + +OUTPUT_ARCH(powerpc) +SEARCH_DIR(/lib); SEARCH_DIR(/usr/lib); SEARCH_DIR(/usr/local/lib); SEARCH_DIR(/usr/local/powerpc-any-elf/lib); +/* Do we need any of these for elf? + __DYNAMIC = 0; */ +SECTIONS +{ + /* Read-only sections, merged into text segment: */ + . = + SIZEOF_HEADERS; + .interp : { *(.interp) } + .hash : { *(.hash) } + .dynsym : { *(.dynsym) } + .dynstr : { *(.dynstr) } + .rel.text : { *(.rel.text) } + .rela.text : { *(.rela.text) } + .rel.data : { *(.rel.data) } + .rela.data : { *(.rela.data) } + .rel.rodata : { *(.rel.rodata) } + .rela.rodata : { *(.rela.rodata) } + .rel.got : { *(.rel.got) } + .rela.got : { *(.rela.got) } + .rel.ctors : { *(.rel.ctors) } + .rela.ctors : { *(.rela.ctors) } + .rel.dtors : { *(.rel.dtors) } + .rela.dtors : { *(.rela.dtors) } + .rel.bss : { *(.rel.bss) } + .rela.bss : { *(.rela.bss) } + .rel.plt : { *(.rel.plt) } + .rela.plt : { *(.rela.plt) } + .init : { *(.init) } + .plt : { *(.plt) } + .text : + { + cpu/mpc8260/start.o (.text) + *(.text) + *(.fixup) + *(.got1) + . = ALIGN(16); + *(.rodata) + *(.rodata1) + *(.rodata.str1.4) + *(.eh_frame) + } + .fini : { *(.fini) } =0 + .ctors : { *(.ctors) } + .dtors : { *(.dtors) } + + /* Read-write section, merged into data segment: */ + . = (. + 0x0FFF) & 0xFFFFF000; + _erotext = .; + PROVIDE (erotext = .); + .reloc : + { + *(.got) + _GOT2_TABLE_ = .; + *(.got2) + _FIXUP_TABLE_ = .; + *(.fixup) + } + __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >> 2; + __fixup_entries = (. - _FIXUP_TABLE_) >> 2; + + .data : + { + *(.data) + *(.data1) + *(.sdata) + *(.sdata2) + *(.dynamic) + CONSTRUCTORS + } + _edata = .; + PROVIDE (edata = .); + + . = .; + __u_boot_cmd_start = .; + .u_boot_cmd : { *(.u_boot_cmd) } + __u_boot_cmd_end = .; + + + . = .; + __start___ex_table = .; + __ex_table : { *(__ex_table) } + __stop___ex_table = .; + + . = ALIGN(4096); + __init_begin = .; + .text.init : { *(.text.init) } + .data.init : { *(.data.init) } + . = ALIGN(4096); + __init_end = .; + + __bss_start = .; + .bss : + { + *(.sbss) *(.scommon) + *(.dynbss) + *(.bss) + *(COMMON) + } + _end = . ; + PROVIDE (end = .); +} |