From: Jean-Christophe PLAGNIOL-VILLARD Date: Sat, 13 Jun 2009 10:50:04 +0000 (+0200) Subject: at91: unify nor boot support X-Git-Tag: v2009.08-rc1~118^2~40 X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=8096c51fd4e611ed666dbe77767e81af5d94fc7b;p=u-boot at91: unify nor boot support the lowlevel init sequence is the same so unify it Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD --- diff --git a/board/atmel/at91sam9263ek/Makefile b/board/atmel/at91sam9263ek/Makefile index 19a354b6e1..79ec45fd9f 100644 --- a/board/atmel/at91sam9263ek/Makefile +++ b/board/atmel/at91sam9263ek/Makefile @@ -32,9 +32,6 @@ LIB = $(obj)lib$(BOARD).a COBJS-y += at91sam9263ek.o COBJS-y += led.o COBJS-$(CONFIG_HAS_DATAFLASH) += partition.o -ifndef CONFIG_SKIP_LOWLEVEL_INIT -SOBJS-y += lowlevel_init.o -endif SRCS := $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c) OBJS := $(addprefix $(obj),$(COBJS-y)) diff --git a/board/atmel/at91sam9263ek/lowlevel_init.S b/board/atmel/at91sam9263ek/lowlevel_init.S deleted file mode 100644 index 3a957776df..0000000000 --- a/board/atmel/at91sam9263ek/lowlevel_init.S +++ /dev/null @@ -1,264 +0,0 @@ -/* - * Memory Setup stuff - taken from blob memsetup.S - * - * Copyright (C) 1999 2000 2001 Erik Mouw (J.A.K.Mouw@its.tudelft.nl) and - * Jan-Derk Bakker (J.D.Bakker@its.tudelft.nl) - * - * Copyright (C) 2008 Ronetix Ilko Iliev (www.ronetix.at) - * Copyright (C) 2009 Jean-Christopher PLAGNIOL-VILLARD - * - * 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 -#include -#include -#include -#include -#include -#include -#include -#include -#include - -_TEXT_BASE: - .word TEXT_BASE - -.globl lowlevel_init -.type lowlevel_init,function -lowlevel_init: - - mov r5, pc /* r5 = POS1 + 4 current */ -POS1: - ldr r0, =POS1 /* r0 = POS1 compile */ - ldr r2, _TEXT_BASE - sub r0, r0, r2 /* r0 = POS1-_TEXT_BASE (POS1 relative) */ - sub r5, r5, r0 /* r0 = TEXT_BASE-1 */ - sub r5, r5, #4 /* r1 = text base - current */ - - /* memory control configuration 1 */ - ldr r0, =SMRDATA - ldr r2, =SMRDATA1 - ldr r1, _TEXT_BASE - sub r0, r0, r1 - sub r2, r2, r1 - add r0, r0, r5 - add r2, r2, r5 -0: - /* the address */ - ldr r1, [r0], #4 - /* the value */ - ldr r3, [r0], #4 - str r3, [r1] - cmp r2, r0 - bne 0b - -/* ---------------------------------------------------------------------------- - * PMC Init Step 1. - * ---------------------------------------------------------------------------- - * - Check if the PLL is already initialized - * ---------------------------------------------------------------------------- - */ - ldr r1, =(AT91_BASE_SYS + AT91_PMC_MCKR) - ldr r0, [r1] - and r0, r0, #3 - cmp r0, #0 - bne PLL_setup_end - -/* --------------------------------------------------------------------------- - * - Enable the Main Oscillator - * --------------------------------------------------------------------------- - */ - ldr r1, =(AT91_BASE_SYS + AT91_CKGR_MOR) - ldr r2, =(AT91_BASE_SYS + AT91_PMC_SR) - ldr r0, =CONFIG_SYS_MOR_VAL - str r0, [r1] /* Enable main oscillator, OSCOUNT = 0xFF */ - - /* Reading the PMC Status to detect when the Main Oscillator is enabled */ - mov r4, #AT91_PMC_MOSCS -MOSCS_Loop: - ldr r3, [r2] - and r3, r4, r3 - cmp r3, #AT91_PMC_MOSCS - bne MOSCS_Loop - -/* ---------------------------------------------------------------------------- - * PMC Init Step 2. - * ---------------------------------------------------------------------------- - * Setup PLLA - * ---------------------------------------------------------------------------- - */ - ldr r1, =(AT91_BASE_SYS + AT91_CKGR_PLLAR) - ldr r0, =CONFIG_SYS_PLLAR_VAL - str r0, [r1] - - /* Reading the PMC Status register to detect when the PLLA is locked */ - mov r4, #AT91_PMC_LOCKA -MOSCS_Loop1: - ldr r3, [r2] - and r3, r4, r3 - cmp r3, #AT91_PMC_LOCKA - bne MOSCS_Loop1 - -/* ---------------------------------------------------------------------------- - * PMC Init Step 3. - * ---------------------------------------------------------------------------- - * - Switch on the Main Oscillator 16.367 MHz - * ---------------------------------------------------------------------------- - */ - ldr r1, =(AT91_BASE_SYS + AT91_PMC_MCKR) - - /* -Master Clock Controller register PMC_MCKR */ - ldr r0, =CONFIG_SYS_MCKR1_VAL - str r0, [r1] - - /* Reading the PMC Status to detect when the Master clock is ready */ - mov r4, #AT91_PMC_MCKRDY -MCKRDY_Loop: - ldr r3, [r2] - and r3, r4, r3 - cmp r3, #AT91_PMC_MCKRDY - bne MCKRDY_Loop - - ldr r0, =CONFIG_SYS_MCKR2_VAL - str r0, [r1] - - /* Reading the PMC Status to detect when the Master clock is ready */ - mov r4, #AT91_PMC_MCKRDY -MCKRDY_Loop1: - ldr r3, [r2] - and r3, r4, r3 - cmp r3, #AT91_PMC_MCKRDY - bne MCKRDY_Loop1 - -PLL_setup_end: - -/* ---------------------------------------------------------------------------- - * - memory control configuration 2 - * ---------------------------------------------------------------------------- - */ - ldr r0, =(AT91_BASE_SYS + AT91_SDRAMC_TR) - ldr r1, [r0] - cmp r1, #0 - bne SDRAM_setup_end - - ldr r0, =SMRDATA1 - ldr r2, =SMRDATA2 - ldr r1, _TEXT_BASE - sub r0, r0, r1 - sub r2, r2, r1 - add r0, r0, r5 - add r2, r2, r5 - -2: - /* the address */ - ldr r1, [r0], #4 - /* the value */ - ldr r3, [r0], #4 - str r3, [r1] - cmp r2, r0 - bne 2b - -SDRAM_setup_end: - /* everything is fine now */ - mov pc, lr - - .ltorg - -SMRDATA: - .word (AT91_BASE_SYS + AT91_WDT_MR) - .word CONFIG_SYS_WDTC_WDMR_VAL - - .word (AT91_BASE_SYS + AT91_PIOD + PIO_PDR) - .word CONFIG_SYS_PIOD_PDR_VAL1 - .word (AT91_BASE_SYS + AT91_PIOD + PIO_PUDR) - .word CONFIG_SYS_PIOD_PPUDR_VAL - .word (AT91_BASE_SYS + AT91_PIOD + PIO_ASR) - .word CONFIG_SYS_PIOD_PPUDR_VAL - - .word (AT91_BASE_SYS + AT91_MATRIX_EBI0CSA) - .word CONFIG_SYS_MATRIX_EBI0CSA_VAL - - /* flash */ - .word (AT91_BASE_SYS + AT91_SMC_MODE(0)) - .word CONFIG_SYS_SMC0_MODE0_VAL - - .word (AT91_BASE_SYS + AT91_SMC_CYCLE(0)) - .word CONFIG_SYS_SMC0_CYCLE0_VAL - - .word (AT91_BASE_SYS + AT91_SMC_PULSE(0)) - .word CONFIG_SYS_SMC0_PULSE0_VAL - - .word (AT91_BASE_SYS + AT91_SMC_SETUP(0)) - .word CONFIG_SYS_SMC0_SETUP0_VAL - -SMRDATA1: - .word (AT91_BASE_SYS + AT91_SDRAMC_MR) - .word CONFIG_SYS_SDRC_MR_VAL1 - .word (AT91_BASE_SYS + AT91_SDRAMC_TR) - .word CONFIG_SYS_SDRC_TR_VAL1 - .word (AT91_BASE_SYS + AT91_SDRAMC_CR) - .word CONFIG_SYS_SDRC_CR_VAL - .word (AT91_BASE_SYS + AT91_SDRAMC_MDR) - .word CONFIG_SYS_SDRC_MDR_VAL - .word (AT91_BASE_SYS + AT91_SDRAMC_MR) - .word CONFIG_SYS_SDRC_MR_VAL2 - .word AT91_SDRAM_BASE - .word CONFIG_SYS_SDRAM_VAL1 - .word (AT91_BASE_SYS + AT91_SDRAMC_MR) - .word CONFIG_SYS_SDRC_MR_VAL3 - .word AT91_SDRAM_BASE - .word CONFIG_SYS_SDRAM_VAL2 - .word AT91_SDRAM_BASE - .word CONFIG_SYS_SDRAM_VAL3 - .word AT91_SDRAM_BASE - .word CONFIG_SYS_SDRAM_VAL4 - .word AT91_SDRAM_BASE - .word CONFIG_SYS_SDRAM_VAL5 - .word AT91_SDRAM_BASE - .word CONFIG_SYS_SDRAM_VAL6 - .word AT91_SDRAM_BASE - .word CONFIG_SYS_SDRAM_VAL7 - .word AT91_SDRAM_BASE - .word CONFIG_SYS_SDRAM_VAL8 - .word AT91_SDRAM_BASE - .word CONFIG_SYS_SDRAM_VAL9 - .word (AT91_BASE_SYS + AT91_SDRAMC_MR) - .word CONFIG_SYS_SDRC_MR_VAL4 - .word AT91_SDRAM_BASE - .word CONFIG_SYS_SDRAM_VAL10 - .word (AT91_BASE_SYS + AT91_SDRAMC_MR) - .word CONFIG_SYS_SDRC_MR_VAL5 - .word AT91_SDRAM_BASE - .word CONFIG_SYS_SDRAM_VAL11 - .word (AT91_BASE_SYS + AT91_SDRAMC_TR) - .word CONFIG_SYS_SDRC_TR_VAL2 - .word AT91_SDRAM_BASE - .word CONFIG_SYS_SDRAM_VAL12 - /* User reset enable*/ - .word (AT91_BASE_SYS + AT91_RSTC_MR) - .word CONFIG_SYS_RSTC_RMR_VAL -#ifdef CONFIG_SYS_MATRIX_MCFG_REMAP - /* MATRIX_MCFG - REMAP all masters */ - .word (AT91_BASE_SYS + AT91_MATRIX_MCFG0) - .word 0x1FF -#endif - -SMRDATA2: - .word 0 diff --git a/board/ronetix/pm9261/Makefile b/board/ronetix/pm9261/Makefile index 1db9de2f85..2e065a2bc9 100644 --- a/board/ronetix/pm9261/Makefile +++ b/board/ronetix/pm9261/Makefile @@ -34,10 +34,6 @@ COBJS-y += $(BOARD).o COBJS-y += led.o COBJS-$(CONFIG_HAS_DATAFLASH) += partition.o -ifndef CONFIG_SKIP_LOWLEVEL_INIT -SOBJS-y := lowlevel_init.o -endif - SRCS := $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c) OBJS := $(addprefix $(obj),$(COBJS-y) $(SOBJS-y)) SOBJS := $(addprefix $(obj),$(SOBJS-y)) diff --git a/board/ronetix/pm9261/lowlevel_init.S b/board/ronetix/pm9261/lowlevel_init.S deleted file mode 100644 index 5880a84ca6..0000000000 --- a/board/ronetix/pm9261/lowlevel_init.S +++ /dev/null @@ -1,259 +0,0 @@ -/* - * Memory Setup stuff - taken from blob memsetup.S - * - * Copyright (C) 1999 2000 2001 Erik Mouw (J.A.K.Mouw@its.tudelft.nl) and - * Jan-Derk Bakker (J.D.Bakker@its.tudelft.nl) - * - * Copyright (C) 2008 Ronetix Ilko Iliev (www.ronetix.at) - * Copyright (C) 2009 Jean-Christopher PLAGNIOL-VILLARD - * - * 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 -#include -#include -#include -#include -#include -#include -#include -#include -#include - -_TEXT_BASE: - .word TEXT_BASE - -.globl lowlevel_init -.type lowlevel_init,function -lowlevel_init: - - mov r5, pc /* r5 = POS1 + 4 current */ -POS1: - ldr r0, =POS1 /* r0 = POS1 compile */ - ldr r2, _TEXT_BASE - sub r0, r0, r2 /* r0 = POS1-_TEXT_BASE (POS1 relative) */ - sub r5, r5, r0 /* r0 = TEXT_BASE-1 */ - sub r5, r5, #4 /* r1 = text base - current */ - - /* memory control configuration 1 */ - ldr r0, =SMRDATA - ldr r2, =SMRDATA1 - ldr r1, _TEXT_BASE - sub r0, r0, r1 - sub r2, r2, r1 - add r0, r0, r5 - add r2, r2, r5 -0: - /* the address */ - ldr r1, [r0], #4 - /* the value */ - ldr r3, [r0], #4 - str r3, [r1] - cmp r2, r0 - bne 0b - -/* ---------------------------------------------------------------------------- - * PMC Init Step 1. - * ---------------------------------------------------------------------------- - * - Check if the PLL is already initialized - * ---------------------------------------------------------------------------- - */ - ldr r1, =(AT91_BASE_SYS + AT91_PMC_MCKR) - ldr r0, [r1] - and r0, r0, #3 - cmp r0, #0 - bne PLL_setup_end - -/* --------------------------------------------------------------------------- - * - Enable the Main Oscillator - * --------------------------------------------------------------------------- - */ - ldr r1, =(AT91_BASE_SYS + AT91_CKGR_MOR) - ldr r2, =(AT91_BASE_SYS + AT91_PMC_SR) - /* Main oscillator Enable register PMC_MOR: */ - /* Enable main oscillator, OSCOUNT = 0xFF */ - ldr r0, =CONFIG_SYS_MOR_VAL - str r0, [r1] - - /* Reading the PMC Status to detect when the Main Oscillator is enabled */ - mov r4, #AT91_PMC_MOSCS -MOSCS_Loop: - ldr r3, [r2] - and r3, r4, r3 - cmp r3, #AT91_PMC_MOSCS - bne MOSCS_Loop - -/* ---------------------------------------------------------------------------- - * PMC Init Step 2. - * ---------------------------------------------------------------------------- - * Setup PLLA - * ---------------------------------------------------------------------------- - */ - ldr r1, =(AT91_BASE_SYS + AT91_CKGR_PLLAR) - ldr r0, =CONFIG_SYS_PLLAR_VAL - str r0, [r1] - - /* Reading the PMC Status register to detect when the PLLA is locked */ - mov r4, #AT91_PMC_LOCKA -MOSCS_Loop1: - ldr r3, [r2] - and r3, r4, r3 - cmp r3, #AT91_PMC_LOCKA - bne MOSCS_Loop1 - -/* ---------------------------------------------------------------------------- - * PMC Init Step 3. - * ---------------------------------------------------------------------------- - * - Switch on the Main Oscillator 18.432 MHz - * ---------------------------------------------------------------------------- - */ - ldr r1, =(AT91_BASE_SYS + AT91_PMC_MCKR) - - /* -Master Clock Controller register PMC_MCKR */ - ldr r0, =CONFIG_SYS_MCKR1_VAL - str r0, [r1] - - /* Reading the PMC Status to detect when the Master clock is ready */ - mov r4, #AT91_PMC_MCKRDY -MCKRDY_Loop: - ldr r3, [r2] - and r3, r4, r3 - cmp r3, #AT91_PMC_MCKRDY - bne MCKRDY_Loop - - ldr r0, =CONFIG_SYS_MCKR2_VAL - str r0, [r1] - - /* Reading the PMC Status to detect when the Master clock is ready */ - mov r4, #AT91_PMC_MCKRDY -MCKRDY_Loop1: - ldr r3, [r2] - and r3, r4, r3 - cmp r3, #AT91_PMC_MCKRDY - bne MCKRDY_Loop1 - -PLL_setup_end: - -/* ---------------------------------------------------------------------------- - * - memory control configuration 2 - * ---------------------------------------------------------------------------- - */ - ldr r0, =(AT91_BASE_SYS + AT91_SDRAMC_TR) - ldr r1, [r0] - cmp r1, #0 - bne SDRAM_setup_end - - ldr r0, =SMRDATA1 - ldr r2, =SMRDATA2 - ldr r1, _TEXT_BASE - sub r0, r0, r1 - sub r2, r2, r1 - add r0, r0, r5 - add r2, r2, r5 - -2: - /* the address */ - ldr r1, [r0], #4 - /* the value */ - ldr r3, [r0], #4 - str r3, [r1] - cmp r2, r0 - bne 2b - -SDRAM_setup_end: - /* everything is fine now */ - mov pc, lr - - .ltorg - -SMRDATA: - .word (AT91_BASE_SYS + AT91_WDT_MR) - .word CONFIG_SYS_WDTC_WDMR_VAL - - .word (AT91_BASE_SYS + AT91_PIOC + PIO_PDR) - .word CONFIG_SYS_PIOC_PDR_VAL1 - .word (AT91_BASE_SYS + AT91_PIOC + PIO_PUDR) - .word CONFIG_SYS_PIOC_PPUDR_VAL - - .word (AT91_BASE_SYS + AT91_MATRIX_EBICSA) - .word CONFIG_SYS_MATRIX_EBICSA_VAL - - /* flash */ - .word (AT91_BASE_SYS + AT91_SMC_MODE(0)) - .word CONFIG_SYS_SMC0_MODE0_VAL - - .word (AT91_BASE_SYS + AT91_SMC_CYCLE(0)) - .word CONFIG_SYS_SMC0_CYCLE0_VAL - - .word (AT91_BASE_SYS + AT91_SMC_PULSE(0)) - .word CONFIG_SYS_SMC0_PULSE0_VAL - - .word (AT91_BASE_SYS + AT91_SMC_SETUP(0)) - .word CONFIG_SYS_SMC0_SETUP0_VAL - -SMRDATA1: - .word (AT91_BASE_SYS + AT91_SDRAMC_MR) - .word CONFIG_SYS_SDRC_MR_VAL1 - .word (AT91_BASE_SYS + AT91_SDRAMC_TR) - .word CONFIG_SYS_SDRC_TR_VAL1 - .word (AT91_BASE_SYS + AT91_SDRAMC_CR) - .word CONFIG_SYS_SDRC_CR_VAL - .word (AT91_BASE_SYS + AT91_SDRAMC_MDR) - .word CONFIG_SYS_SDRC_MDR_VAL - .word (AT91_BASE_SYS + AT91_SDRAMC_MR) - .word CONFIG_SYS_SDRC_MR_VAL2 - .word AT91_SDRAM_BASE - .word CONFIG_SYS_SDRAM_VAL1 - .word (AT91_BASE_SYS + AT91_SDRAMC_MR) - .word CONFIG_SYS_SDRC_MR_VAL3 - .word AT91_SDRAM_BASE - .word CONFIG_SYS_SDRAM_VAL2 - .word AT91_SDRAM_BASE - .word CONFIG_SYS_SDRAM_VAL3 - .word AT91_SDRAM_BASE - .word CONFIG_SYS_SDRAM_VAL4 - .word AT91_SDRAM_BASE - .word CONFIG_SYS_SDRAM_VAL5 - .word AT91_SDRAM_BASE - .word CONFIG_SYS_SDRAM_VAL6 - .word AT91_SDRAM_BASE - .word CONFIG_SYS_SDRAM_VAL7 - .word AT91_SDRAM_BASE - .word CONFIG_SYS_SDRAM_VAL8 - .word AT91_SDRAM_BASE - .word CONFIG_SYS_SDRAM_VAL9 - .word (AT91_BASE_SYS + AT91_SDRAMC_MR) - .word CONFIG_SYS_SDRC_MR_VAL4 - .word AT91_SDRAM_BASE - .word CONFIG_SYS_SDRAM_VAL10 - .word (AT91_BASE_SYS + AT91_SDRAMC_MR) - .word CONFIG_SYS_SDRC_MR_VAL5 - .word AT91_SDRAM_BASE - .word CONFIG_SYS_SDRAM_VAL11 - .word (AT91_BASE_SYS + AT91_SDRAMC_TR) - .word CONFIG_SYS_SDRC_TR_VAL2 - .word AT91_SDRAM_BASE - .word CONFIG_SYS_SDRAM_VAL12 - /* User reset enable*/ - .word (AT91_BASE_SYS + AT91_RSTC_MR) - .word CONFIG_SYS_RSTC_RMR_VAL - -SMRDATA2: - .word 0 diff --git a/board/ronetix/pm9263/Makefile b/board/ronetix/pm9263/Makefile index 270abd801f..ebc2adfa3d 100644 --- a/board/ronetix/pm9263/Makefile +++ b/board/ronetix/pm9263/Makefile @@ -34,10 +34,6 @@ COBJS-y += pm9263.o COBJS-y += led.o COBJS-$(CONFIG_HAS_DATAFLASH) += partition.o -ifndef CONFIG_SKIP_LOWLEVEL_INIT -SOBJS-y := lowlevel_init.o -endif - SRCS := $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c) OBJS := $(addprefix $(obj),$(COBJS-y) $(SOBJS-y)) SOBJS := $(addprefix $(obj),$(SOBJS-y)) diff --git a/board/ronetix/pm9263/lowlevel_init.S b/board/ronetix/pm9263/lowlevel_init.S deleted file mode 100644 index b139c89389..0000000000 --- a/board/ronetix/pm9263/lowlevel_init.S +++ /dev/null @@ -1,264 +0,0 @@ -/* - * Memory Setup stuff - taken from blob memsetup.S - * - * Copyright (C) 1999 2000 2001 Erik Mouw (J.A.K.Mouw@its.tudelft.nl) and - * Jan-Derk Bakker (J.D.Bakker@its.tudelft.nl) - * - * Copyright (C) 2008 Ronetix Ilko Iliev (www.ronetix.at) - * Copyright (C) 2009 Jean-Christophe PLAGNIOL-VILLARD - * - * 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 -#include -#include -#include -#include -#include -#include -#include -#include -#include - -_TEXT_BASE: - .word TEXT_BASE - -.globl lowlevel_init -.type lowlevel_init,function -lowlevel_init: - - mov r5, pc /* r5 = POS1 + 4 current */ -POS1: - ldr r0, =POS1 /* r0 = POS1 compile */ - ldr r2, _TEXT_BASE - sub r0, r0, r2 /* r0 = POS1-_TEXT_BASE (POS1 relative) */ - sub r5, r5, r0 /* r0 = TEXT_BASE-1 */ - sub r5, r5, #4 /* r1 = text base - current */ - - /* memory control configuration 1 */ - ldr r0, =SMRDATA - ldr r2, =SMRDATA1 - ldr r1, _TEXT_BASE - sub r0, r0, r1 - sub r2, r2, r1 - add r0, r0, r5 - add r2, r2, r5 -0: - /* the address */ - ldr r1, [r0], #4 - /* the value */ - ldr r3, [r0], #4 - str r3, [r1] - cmp r2, r0 - bne 0b - -/* ---------------------------------------------------------------------------- - * PMC Init Step 1. - * ---------------------------------------------------------------------------- - * - Check if the PLL is already initialized - * ---------------------------------------------------------------------------- - */ - ldr r1, =(AT91_BASE_SYS + AT91_PMC_MCKR) - ldr r0, [r1] - and r0, r0, #3 - cmp r0, #0 - bne PLL_setup_end - -/* --------------------------------------------------------------------------- - * - Enable the Main Oscillator - * --------------------------------------------------------------------------- - */ - ldr r1, =(AT91_BASE_SYS + AT91_CKGR_MOR) - ldr r2, =(AT91_BASE_SYS + AT91_PMC_SR) - ldr r0, =CONFIG_SYS_MOR_VAL - str r0, [r1] /* Enable main oscillator, OSCOUNT = 0xFF */ - - /* Reading the PMC Status to detect when the Main Oscillator is enabled */ - mov r4, #AT91_PMC_MOSCS -MOSCS_Loop: - ldr r3, [r2] - and r3, r4, r3 - cmp r3, #AT91_PMC_MOSCS - bne MOSCS_Loop - -/* ---------------------------------------------------------------------------- - * PMC Init Step 2. - * ---------------------------------------------------------------------------- - * Setup PLLA - * ---------------------------------------------------------------------------- - */ - ldr r1, =(AT91_BASE_SYS + AT91_CKGR_PLLAR) - ldr r0, =CONFIG_SYS_PLLAR_VAL - str r0, [r1] - - /* Reading the PMC Status register to detect when the PLLA is locked */ - mov r4, #AT91_PMC_LOCKA -MOSCS_Loop1: - ldr r3, [r2] - and r3, r4, r3 - cmp r3, #AT91_PMC_LOCKA - bne MOSCS_Loop1 - -/* ---------------------------------------------------------------------------- - * PMC Init Step 3. - * ---------------------------------------------------------------------------- - * - Switch on the Main Oscillator 18.432 MHz - * ---------------------------------------------------------------------------- - */ - ldr r1, =(AT91_BASE_SYS + AT91_PMC_MCKR) - - /* -Master Clock Controller register PMC_MCKR */ - ldr r0, =CONFIG_SYS_MCKR1_VAL - str r0, [r1] - - /* Reading the PMC Status to detect when the Master clock is ready */ - mov r4, #AT91_PMC_MCKRDY -MCKRDY_Loop: - ldr r3, [r2] - and r3, r4, r3 - cmp r3, #AT91_PMC_MCKRDY - bne MCKRDY_Loop - - ldr r0, =CONFIG_SYS_MCKR2_VAL - str r0, [r1] - - /* Reading the PMC Status to detect when the Master clock is ready */ - mov r4, #AT91_PMC_MCKRDY -MCKRDY_Loop1: - ldr r3, [r2] - and r3, r4, r3 - cmp r3, #AT91_PMC_MCKRDY - bne MCKRDY_Loop1 - -PLL_setup_end: - -/* ---------------------------------------------------------------------------- - * - memory control configuration 2 - * ---------------------------------------------------------------------------- - */ - ldr r0, =(AT91_BASE_SYS + AT91_SDRAMC_TR) - ldr r1, [r0] - cmp r1, #0 - bne SDRAM_setup_end - - ldr r0, =SMRDATA1 - ldr r2, =SMRDATA2 - ldr r1, _TEXT_BASE - sub r0, r0, r1 - sub r2, r2, r1 - add r0, r0, r5 - add r2, r2, r5 - -2: - /* the address */ - ldr r1, [r0], #4 - /* the value */ - ldr r3, [r0], #4 - str r3, [r1] - cmp r2, r0 - bne 2b - -SDRAM_setup_end: - /* everything is fine now */ - mov pc, lr - - .ltorg - -SMRDATA: - .word (AT91_BASE_SYS + AT91_WDT_MR) - .word CONFIG_SYS_WDTC_WDMR_VAL - - .word (AT91_BASE_SYS + AT91_PIOD + PIO_PDR) - .word CONFIG_SYS_PIOD_PDR_VAL1 - .word (AT91_BASE_SYS + AT91_PIOD + PIO_PUDR) - .word CONFIG_SYS_PIOD_PPUDR_VAL - .word (AT91_BASE_SYS + AT91_PIOD + PIO_ASR) - .word CONFIG_SYS_PIOD_PPUDR_VAL - - .word (AT91_BASE_SYS + AT91_MATRIX_EBI0CSA) - .word CONFIG_SYS_MATRIX_EBI0CSA_VAL - - /* flash */ - .word (AT91_BASE_SYS + AT91_SMC_MODE(0)) - .word CONFIG_SYS_SMC0_MODE0_VAL - - .word (AT91_BASE_SYS + AT91_SMC_CYCLE(0)) - .word CONFIG_SYS_SMC0_CYCLE0_VAL - - .word (AT91_BASE_SYS + AT91_SMC_PULSE(0)) - .word CONFIG_SYS_SMC0_PULSE0_VAL - - .word (AT91_BASE_SYS + AT91_SMC_SETUP(0)) - .word CONFIG_SYS_SMC0_SETUP0_VAL - -SMRDATA1: - .word (AT91_BASE_SYS + AT91_SDRAMC_MR) - .word CONFIG_SYS_SDRC_MR_VAL1 - .word (AT91_BASE_SYS + AT91_SDRAMC_TR) - .word CONFIG_SYS_SDRC_TR_VAL1 - .word (AT91_BASE_SYS + AT91_SDRAMC_CR) - .word CONFIG_SYS_SDRC_CR_VAL - .word (AT91_BASE_SYS + AT91_SDRAMC_MDR) - .word CONFIG_SYS_SDRC_MDR_VAL - .word (AT91_BASE_SYS + AT91_SDRAMC_MR) - .word CONFIG_SYS_SDRC_MR_VAL2 - .word AT91_SDRAM_BASE - .word CONFIG_SYS_SDRAM_VAL1 - .word (AT91_BASE_SYS + AT91_SDRAMC_MR) - .word CONFIG_SYS_SDRC_MR_VAL3 - .word AT91_SDRAM_BASE - .word CONFIG_SYS_SDRAM_VAL2 - .word AT91_SDRAM_BASE - .word CONFIG_SYS_SDRAM_VAL3 - .word AT91_SDRAM_BASE - .word CONFIG_SYS_SDRAM_VAL4 - .word AT91_SDRAM_BASE - .word CONFIG_SYS_SDRAM_VAL5 - .word AT91_SDRAM_BASE - .word CONFIG_SYS_SDRAM_VAL6 - .word AT91_SDRAM_BASE - .word CONFIG_SYS_SDRAM_VAL7 - .word AT91_SDRAM_BASE - .word CONFIG_SYS_SDRAM_VAL8 - .word AT91_SDRAM_BASE - .word CONFIG_SYS_SDRAM_VAL9 - .word (AT91_BASE_SYS + AT91_SDRAMC_MR) - .word CONFIG_SYS_SDRC_MR_VAL4 - .word AT91_SDRAM_BASE - .word CONFIG_SYS_SDRAM_VAL10 - .word (AT91_BASE_SYS + AT91_SDRAMC_MR) - .word CONFIG_SYS_SDRC_MR_VAL5 - .word AT91_SDRAM_BASE - .word CONFIG_SYS_SDRAM_VAL11 - .word (AT91_BASE_SYS + AT91_SDRAMC_TR) - .word CONFIG_SYS_SDRC_TR_VAL2 - .word AT91_SDRAM_BASE - .word CONFIG_SYS_SDRAM_VAL12 - /* User reset enable*/ - .word (AT91_BASE_SYS + AT91_RSTC_MR) - .word CONFIG_SYS_RSTC_RMR_VAL -#ifdef CONFIG_SYS_MATRIX_MCFG_REMAP - /* MATRIX_MCFG - REMAP all masters */ - .word (AT91_BASE_SYS + AT91_MATRIX_MCFG0) - .word 0x1FF -#endif - -SMRDATA2: - .word 0 diff --git a/cpu/arm926ejs/at91/Makefile b/cpu/arm926ejs/at91/Makefile index 66eec76ea1..3da89f4fba 100644 --- a/cpu/arm926ejs/at91/Makefile +++ b/cpu/arm926ejs/at91/Makefile @@ -37,8 +37,12 @@ COBJS-y += cpu.o COBJS-y += reset.o COBJS-y += timer.o -SRCS := $(SOBJS:.o=.S) $(COBJS-y:.o=.c) -OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS-y)) +ifndef CONFIG_SKIP_LOWLEVEL_INIT +SOBJS-y := lowlevel_init.o +endif + +SRCS := $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c) +OBJS := $(addprefix $(obj),$(SOBJS-y) $(COBJS-y)) all: $(obj).depend $(LIB) diff --git a/cpu/arm926ejs/at91/lowlevel_init.S b/cpu/arm926ejs/at91/lowlevel_init.S new file mode 100644 index 0000000000..5ed518cc2d --- /dev/null +++ b/cpu/arm926ejs/at91/lowlevel_init.S @@ -0,0 +1,278 @@ +/* + * Memory Setup stuff - taken from blob memsetup.S + * + * Copyright (C) 1999 2000 2001 Erik Mouw (J.A.K.Mouw@its.tudelft.nl) and + * Jan-Derk Bakker (J.D.Bakker@its.tudelft.nl) + * + * Copyright (C) 2008 Ronetix Ilko Iliev (www.ronetix.at) + * Copyright (C) 2009 Jean-Christophe PLAGNIOL-VILLARD + * + * 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 +#include +#include +#include +#include +#include +#include +#include +#include +#include + +_TEXT_BASE: + .word TEXT_BASE + +.globl lowlevel_init +.type lowlevel_init,function +lowlevel_init: + + mov r5, pc /* r5 = POS1 + 4 current */ +POS1: + ldr r0, =POS1 /* r0 = POS1 compile */ + ldr r2, _TEXT_BASE + sub r0, r0, r2 /* r0 = POS1-_TEXT_BASE (POS1 relative) */ + sub r5, r5, r0 /* r0 = TEXT_BASE-1 */ + sub r5, r5, #4 /* r1 = text base - current */ + + /* memory control configuration 1 */ + ldr r0, =SMRDATA + ldr r2, =SMRDATA1 + ldr r1, _TEXT_BASE + sub r0, r0, r1 + sub r2, r2, r1 + add r0, r0, r5 + add r2, r2, r5 +0: + /* the address */ + ldr r1, [r0], #4 + /* the value */ + ldr r3, [r0], #4 + str r3, [r1] + cmp r2, r0 + bne 0b + +/* ---------------------------------------------------------------------------- + * PMC Init Step 1. + * ---------------------------------------------------------------------------- + * - Check if the PLL is already initialized + * ---------------------------------------------------------------------------- + */ + ldr r1, =(AT91_BASE_SYS + AT91_PMC_MCKR) + ldr r0, [r1] + and r0, r0, #3 + cmp r0, #0 + bne PLL_setup_end + +/* --------------------------------------------------------------------------- + * - Enable the Main Oscillator + * --------------------------------------------------------------------------- + */ + ldr r1, =(AT91_BASE_SYS + AT91_CKGR_MOR) + ldr r2, =(AT91_BASE_SYS + AT91_PMC_SR) + /* Main oscillator Enable register PMC_MOR: */ + ldr r0, =CONFIG_SYS_MOR_VAL + str r0, [r1] + + /* Reading the PMC Status to detect when the Main Oscillator is enabled */ + mov r4, #AT91_PMC_MOSCS +MOSCS_Loop: + ldr r3, [r2] + and r3, r4, r3 + cmp r3, #AT91_PMC_MOSCS + bne MOSCS_Loop + +/* ---------------------------------------------------------------------------- + * PMC Init Step 2. + * ---------------------------------------------------------------------------- + * Setup PLLA + * ---------------------------------------------------------------------------- + */ + ldr r1, =(AT91_BASE_SYS + AT91_CKGR_PLLAR) + ldr r0, =CONFIG_SYS_PLLAR_VAL + str r0, [r1] + + /* Reading the PMC Status register to detect when the PLLA is locked */ + mov r4, #AT91_PMC_LOCKA +MOSCS_Loop1: + ldr r3, [r2] + and r3, r4, r3 + cmp r3, #AT91_PMC_LOCKA + bne MOSCS_Loop1 + +/* ---------------------------------------------------------------------------- + * PMC Init Step 3. + * ---------------------------------------------------------------------------- + * - Switch on the Main Oscillator + * ---------------------------------------------------------------------------- + */ + ldr r1, =(AT91_BASE_SYS + AT91_PMC_MCKR) + + /* -Master Clock Controller register PMC_MCKR */ + ldr r0, =CONFIG_SYS_MCKR1_VAL + str r0, [r1] + + /* Reading the PMC Status to detect when the Master clock is ready */ + mov r4, #AT91_PMC_MCKRDY +MCKRDY_Loop: + ldr r3, [r2] + and r3, r4, r3 + cmp r3, #AT91_PMC_MCKRDY + bne MCKRDY_Loop + + ldr r0, =CONFIG_SYS_MCKR2_VAL + str r0, [r1] + + /* Reading the PMC Status to detect when the Master clock is ready */ + mov r4, #AT91_PMC_MCKRDY +MCKRDY_Loop1: + ldr r3, [r2] + and r3, r4, r3 + cmp r3, #AT91_PMC_MCKRDY + bne MCKRDY_Loop1 + +PLL_setup_end: + +/* ---------------------------------------------------------------------------- + * - memory control configuration 2 + * ---------------------------------------------------------------------------- + */ + ldr r0, =(AT91_BASE_SYS + AT91_SDRAMC_TR) + ldr r1, [r0] + cmp r1, #0 + bne SDRAM_setup_end + + ldr r0, =SMRDATA1 + ldr r2, =SMRDATA2 + ldr r1, _TEXT_BASE + sub r0, r0, r1 + sub r2, r2, r1 + add r0, r0, r5 + add r2, r2, r5 + +2: + /* the address */ + ldr r1, [r0], #4 + /* the value */ + ldr r3, [r0], #4 + str r3, [r1] + cmp r2, r0 + bne 2b + +SDRAM_setup_end: + /* everything is fine now */ + mov pc, lr + + .ltorg + +SMRDATA: + .word (AT91_BASE_SYS + AT91_WDT_MR) + .word CONFIG_SYS_WDTC_WDMR_VAL + + /* configure PIOx as EBI0 D[16-31] */ +#if defined(CONFIG_AT91SAM9263) + .word (AT91_BASE_SYS + AT91_PIOD + PIO_PDR) + .word CONFIG_SYS_PIOD_PDR_VAL1 + .word (AT91_BASE_SYS + AT91_PIOD + PIO_PUDR) + .word CONFIG_SYS_PIOD_PPUDR_VAL + .word (AT91_BASE_SYS + AT91_PIOD + PIO_ASR) + .word CONFIG_SYS_PIOD_PPUDR_VAL +#elif defined(CONFIG_AT91SAM9261) + .word (AT91_BASE_SYS + AT91_PIOC + PIO_PDR) + .word CONFIG_SYS_PIOC_PDR_VAL1 + .word (AT91_BASE_SYS + AT91_PIOC + PIO_PUDR) + .word CONFIG_SYS_PIOC_PPUDR_VAL +#endif + +#if defined(AT91_MATRIX_EBI0CSA) + .word (AT91_BASE_SYS + AT91_MATRIX_EBI0CSA) + .word CONFIG_SYS_MATRIX_EBI0CSA_VAL +#else /* AT91_MATRIX_EBICSA */ + .word (AT91_BASE_SYS + AT91_MATRIX_EBICSA) + .word CONFIG_SYS_MATRIX_EBICSA_VAL +#endif + + /* flash */ + .word (AT91_BASE_SYS + AT91_SMC_MODE(0)) + .word CONFIG_SYS_SMC0_MODE0_VAL + + .word (AT91_BASE_SYS + AT91_SMC_CYCLE(0)) + .word CONFIG_SYS_SMC0_CYCLE0_VAL + + .word (AT91_BASE_SYS + AT91_SMC_PULSE(0)) + .word CONFIG_SYS_SMC0_PULSE0_VAL + + .word (AT91_BASE_SYS + AT91_SMC_SETUP(0)) + .word CONFIG_SYS_SMC0_SETUP0_VAL + +SMRDATA1: + .word (AT91_BASE_SYS + AT91_SDRAMC_MR) + .word CONFIG_SYS_SDRC_MR_VAL1 + .word (AT91_BASE_SYS + AT91_SDRAMC_TR) + .word CONFIG_SYS_SDRC_TR_VAL1 + .word (AT91_BASE_SYS + AT91_SDRAMC_CR) + .word CONFIG_SYS_SDRC_CR_VAL + .word (AT91_BASE_SYS + AT91_SDRAMC_MDR) + .word CONFIG_SYS_SDRC_MDR_VAL + .word (AT91_BASE_SYS + AT91_SDRAMC_MR) + .word CONFIG_SYS_SDRC_MR_VAL2 + .word AT91_SDRAM_BASE + .word CONFIG_SYS_SDRAM_VAL1 + .word (AT91_BASE_SYS + AT91_SDRAMC_MR) + .word CONFIG_SYS_SDRC_MR_VAL3 + .word AT91_SDRAM_BASE + .word CONFIG_SYS_SDRAM_VAL2 + .word AT91_SDRAM_BASE + .word CONFIG_SYS_SDRAM_VAL3 + .word AT91_SDRAM_BASE + .word CONFIG_SYS_SDRAM_VAL4 + .word AT91_SDRAM_BASE + .word CONFIG_SYS_SDRAM_VAL5 + .word AT91_SDRAM_BASE + .word CONFIG_SYS_SDRAM_VAL6 + .word AT91_SDRAM_BASE + .word CONFIG_SYS_SDRAM_VAL7 + .word AT91_SDRAM_BASE + .word CONFIG_SYS_SDRAM_VAL8 + .word AT91_SDRAM_BASE + .word CONFIG_SYS_SDRAM_VAL9 + .word (AT91_BASE_SYS + AT91_SDRAMC_MR) + .word CONFIG_SYS_SDRC_MR_VAL4 + .word AT91_SDRAM_BASE + .word CONFIG_SYS_SDRAM_VAL10 + .word (AT91_BASE_SYS + AT91_SDRAMC_MR) + .word CONFIG_SYS_SDRC_MR_VAL5 + .word AT91_SDRAM_BASE + .word CONFIG_SYS_SDRAM_VAL11 + .word (AT91_BASE_SYS + AT91_SDRAMC_TR) + .word CONFIG_SYS_SDRC_TR_VAL2 + .word AT91_SDRAM_BASE + .word CONFIG_SYS_SDRAM_VAL12 + /* User reset enable*/ + .word (AT91_BASE_SYS + AT91_RSTC_MR) + .word CONFIG_SYS_RSTC_RMR_VAL +#ifdef CONFIG_SYS_MATRIX_MCFG_REMAP + /* MATRIX_MCFG - REMAP all masters */ + .word (AT91_BASE_SYS + AT91_MATRIX_MCFG0) + .word 0x1FF +#endif + +SMRDATA2: + .word 0 diff --git a/include/asm-arm/arch-at91/at91sam9_matrix.h b/include/asm-arm/arch-at91/at91sam9_matrix.h new file mode 100644 index 0000000000..913f374790 --- /dev/null +++ b/include/asm-arm/arch-at91/at91sam9_matrix.h @@ -0,0 +1,28 @@ +/* + * Copyright (C) 2009 Jean-Christophe PLAGNIOL-VILLARD + * + * 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. + * + */ + +#ifndef __ASM_ARCH_AT91SAM9_MATRIX_H +#define __ASM_ARCH_AT91SAM9_MATRIX_H + +#if defined(CONFIG_AT91SAM9260) || defined(CONFIG_AT91SAM9G20) +#include +#elif defined(CONFIG_AT91SAM9261) +#include +#elif defined(CONFIG_AT91SAM9263) +#include +#elif defined(CONFIG_AT91SAM9RL) +#include +#elif defined(CONFIG_AT91CAP9) +#include +#else +#error "Unsupported AT91SAM9/CAP9 processor" +#endif + +#endif /* __ASM_ARCH_AT91SAM9_MATRIX_H */