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authorJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>2009-08-23 16:32:38 +0200
committerJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>2009-09-05 01:33:09 +0200
commit0a0e4bad9693ef1d2ca8c33ba551d395a4e3d641 (patch)
tree77fe8fd938e959924120b59932cd24c3fecd78cf /board/omap730p2/lowlevel_init.S
parent2dc851e3b0f07a56f83060f13882ff4b62cf5112 (diff)
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omap: move TI's boards to board/ti/
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Diffstat (limited to 'board/omap730p2/lowlevel_init.S')
-rw-r--r--board/omap730p2/lowlevel_init.S395
1 files changed, 0 insertions, 395 deletions
diff --git a/board/omap730p2/lowlevel_init.S b/board/omap730p2/lowlevel_init.S
deleted file mode 100644
index d4e97a5..0000000
--- a/board/omap730p2/lowlevel_init.S
+++ /dev/null
@@ -1,395 +0,0 @@
-/*
- * Board specific setup info
- *
- * (C) Copyright 2003-2004
- *
- * Texas Instruments, <www.ti.com>
- * Kshitij Gupta <Kshitij@ti.com>
- *
- * Modified for OMAP 1610 H2 board by Nishant Kamat, Jan 2004
- *
- * Modified for OMAP730 P2 Board by Dave Peverley, MPC-Data Limited
- * (http://www.mpc-data.co.uk)
- *
- * TODO : Tidy up and change to use system register defines
- * from omap730.h where possible.
- *
- * 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 <config.h>
-#include <version.h>
-
-#if defined(CONFIG_OMAP730)
-#include <./configs/omap730.h>
-#endif
-
-_TEXT_BASE:
- .word TEXT_BASE /* sdram load addr from config.mk */
-
-.globl lowlevel_init
-lowlevel_init:
- /* Save callers address in r11 - r11 must never be modified */
- mov r11, lr
-
- /*------------------------------------------------------*
- *mask all IRQs by setting all bits in the INTMR default*
- *------------------------------------------------------*/
- mov r1, #0xffffffff
- ldr r0, =REG_IHL1_MIR
- str r1, [r0]
- ldr r0, =REG_IHL2_MIR
- str r1, [r0]
-
- /*------------------------------------------------------*
- * Set up ARM CLM registers (IDLECT1) *
- *------------------------------------------------------*/
- ldr r0, REG_ARM_IDLECT1
- ldr r1, VAL_ARM_IDLECT1
- str r1, [r0]
-
- /*------------------------------------------------------*
- * Set up ARM CLM registers (IDLECT2) *
- *------------------------------------------------------*/
- ldr r0, REG_ARM_IDLECT2
- ldr r1, VAL_ARM_IDLECT2
- str r1, [r0]
-
- /*------------------------------------------------------*
- * Set up ARM CLM registers (IDLECT3) *
- *------------------------------------------------------*/
- ldr r0, REG_ARM_IDLECT3
- ldr r1, VAL_ARM_IDLECT3
- str r1, [r0]
-
-
- mov r1, #0x01 /* PER_EN bit */
- ldr r0, REG_ARM_RSTCT2
- strh r1, [r0] /* CLKM; Peripheral reset. */
-
- /* Set CLKM to Sync-Scalable */
- /* I supposedly need to enable the dsp clock before switching */
- mov r1, #0x1000
- ldr r0, REG_ARM_SYSST
- strh r1, [r0]
- mov r0, #0x400
-1:
- subs r0, r0, #0x1 /* wait for any bubbles to finish */
- bne 1b
- ldr r1, VAL_ARM_CKCTL
- ldr r0, REG_ARM_CKCTL
- strh r1, [r0]
-
- /* a few nops to let settle */
- nop
- nop
- nop
- nop
- nop
- nop
- nop
- nop
- nop
- nop
-
- /* setup DPLL 1 */
- /* Ramp up the clock to 96Mhz */
- ldr r1, VAL_DPLL1_CTL
- ldr r0, REG_DPLL1_CTL
- strh r1, [r0]
- ands r1, r1, #0x10 /* Check if PLL is enabled. */
- beq lock_end /* Do not look for lock if BYPASS selected */
-2:
- ldrh r1, [r0]
- ands r1, r1, #0x01 /* Check the LOCK bit.*/
- beq 2b /* loop until bit goes hi. */
-lock_end:
-
- /*------------------------------------------------------*
- * Turn off the watchdog during init... *
- *------------------------------------------------------*/
- ldr r0, REG_WATCHDOG
- ldr r1, WATCHDOG_VAL1
- str r1, [r0]
- ldr r1, WATCHDOG_VAL2
- str r1, [r0]
- ldr r0, REG_WSPRDOG
- ldr r1, WSPRDOG_VAL1
- str r1, [r0]
- ldr r0, REG_WWPSDOG
-
-watch1Wait:
- ldr r1, [r0]
- tst r1, #0x10
- bne watch1Wait
-
- ldr r0, REG_WSPRDOG
- ldr r1, WSPRDOG_VAL2
- str r1, [r0]
- ldr r0, REG_WWPSDOG
-watch2Wait:
- ldr r1, [r0]
- tst r1, #0x10
- bne watch2Wait
-
- /* Set memory timings corresponding to the new clock speed */
-
- /* Check execution location to determine current execution location
- * and branch to appropriate initialization code.
- */
- /* Compare physical SDRAM base & current execution location. */
- and r0, pc, #0xF0000000
- /* Compare. */
- cmp r0, #0
- /* Skip over EMIF-fast initialization if running from SDRAM. */
- bne skip_sdram
-
- /*
- * Delay for SDRAM initialization.
- */
- mov r3, #0x1800 /* value should be checked */
-3:
- subs r3, r3, #0x1 /* Decrement count */
- bne 3b
-
- ldr r0, REG_SDRAM_CONFIG
- ldr r1, SDRAM_CONFIG_VAL
- str r1, [r0]
-
- ldr r0, REG_SDRAM_MRS_LEGACY
- ldr r1, SDRAM_MRS_VAL
- str r1, [r0]
-
-skip_sdram:
-
-common_tc:
- /* slow interface */
- ldr r1, VAL_TC_EMIFS_CS0_CONFIG
- ldr r0, REG_TC_EMIFS_CS0_CONFIG
- str r1, [r0] /* Chip Select 0 */
-
- ldr r1, VAL_TC_EMIFS_CS1_CONFIG
- ldr r0, REG_TC_EMIFS_CS1_CONFIG
- str r1, [r0] /* Chip Select 1 */
- ldr r1, VAL_TC_EMIFS_CS2_CONFIG
- ldr r0, REG_TC_EMIFS_CS2_CONFIG
- str r1, [r0] /* Chip Select 2 */
- ldr r1, VAL_TC_EMIFS_CS3_CONFIG
- ldr r0, REG_TC_EMIFS_CS3_CONFIG
- str r1, [r0] /* Chip Select 3 */
-
- /* 48MHz clock request for UART1 */
- ldr r1, PERSEUS2_CONFIG_BASE
- ldrh r0, [r1, #CONFIG_PCC_CONF]
- orr r0, r0, #CONF_MOD_UART1_CLK_MODE_R
- strh r0, [r1, #CONFIG_PCC_CONF]
-
- /* Initialize public and private rheas
- * - set access factor 2 on both rhea / strobe
- * - disable write buffer on strb0, enable write buffer on strb1
- */
-
- ldr R0, REG_RHEA_PUB_CTL
- ldr R1, REG_RHEA_PRIV_CTL
- ldr R2, VAL_RHEA_CTL
- strh R2, [R0]
- strh R2, [R1]
- mov R3, #2 /* disable write buffer on strb0, enable write buffer on strb1 */
- strh R3, [R0, #0x08] /* arm rhea control reg */
- strh R3, [R1, #0x08]
-
- /* enable IRQ and FIQ */
-
- mrs r4, CPSR
- bic r4, r4, #IRQ_MASK
- bic r4, r4, #FIQ_MASK
- msr CPSR, r4
-
- /* set TAP CONF to TRI EMULATION */
-
- ldr r1, [r0, #CONFIG_MODE2]
- bic r1, r1, #0x18
- orr r1, r1, #0x10
- str r1, [r0, #CONFIG_MODE2]
-
- /* set tdbgen to 1 */
-
- ldr r0, PERSEUS2_CONFIG_BASE
- ldr r1, [r0, #CONFIG_MODE1]
- mov r2, #0x10000
- orr r1, r1, r2
- str r1, [r0, #CONFIG_MODE1]
-
-#ifdef CONFIG_P2_OMAP1610
- /* inserting additional 2 clock cycle hold time for LAN */
- ldr r0, REG_TC_EMIFS_CS1_ADVANCED
- ldr r1, VAL_TC_EMIFS_CS1_ADVANCED
- str r1, [r0]
-#endif
- /* Start MPU Timer 1 */
- ldr r0, REG_MPU_LOAD_TIMER
- ldr r1, VAL_MPU_LOAD_TIMER
- str r1, [r0]
-
- ldr r0, REG_MPU_CNTL_TIMER
- ldr r1, VAL_MPU_CNTL_TIMER
- str r1, [r0]
-
- /* back to arch calling code */
- mov pc, r11
-
- /* the literal pools origin */
- .ltorg
-
-REG_TC_EMIFS_CONFIG: /* 32 bits */
- .word 0xfffecc0c
-REG_TC_EMIFS_CS0_CONFIG: /* 32 bits */
- .word 0xfffecc10
-REG_TC_EMIFS_CS1_CONFIG: /* 32 bits */
- .word 0xfffecc14
-REG_TC_EMIFS_CS2_CONFIG: /* 32 bits */
- .word 0xfffecc18
-REG_TC_EMIFS_CS3_CONFIG: /* 32 bits */
- .word 0xfffecc1c
-
-#ifdef CONFIG_P2_OMAP730
-REG_TC_EMIFS_CS1_ADVANCED: /* 32 bits */
- .word 0xfffecc54
-#endif
-
-/* MPU clock/reset/power mode control registers */
-REG_ARM_CKCTL: /* 16 bits */
- .word 0xfffece00
-
-REG_ARM_IDLECT3: /* 16 bits */
- .word 0xfffece24
-REG_ARM_IDLECT2: /* 16 bits */
- .word 0xfffece08
-REG_ARM_IDLECT1: /* 16 bits */
- .word 0xfffece04
-
-REG_ARM_RSTCT2: /* 16 bits */
- .word 0xfffece14
-REG_ARM_SYSST: /* 16 bits */
- .word 0xfffece18
-/* DPLL control registers */
-REG_DPLL1_CTL: /* 16 bits */
- .word 0xfffecf00
-
-/* Watch Dog register */
-/* secure watchdog stop */
-REG_WSPRDOG:
- .word 0xfffeb048
-/* watchdog write pending */
-REG_WWPSDOG:
- .word 0xfffeb034
-
-WSPRDOG_VAL1:
- .word 0x0000aaaa
-WSPRDOG_VAL2:
- .word 0x00005555
-
-/* SDRAM config is: auto refresh enabled, 16 bit 4 bank,
- counter @8192 rows, 10 ns, 8 burst */
-REG_SDRAM_CONFIG:
- .word 0xfffecc20
-
-REG_SDRAM_MRS_LEGACY:
- .word 0xfffecc24
-
-REG_WATCHDOG:
- .word 0xfffec808
-
-REG_MPU_LOAD_TIMER:
- .word 0xfffec504
-REG_MPU_CNTL_TIMER:
- .word 0xfffec500
-
-/* Public and private rhea bridge registers definition */
-
-REG_RHEA_PUB_CTL:
- .word 0xFFFECA00
-
-REG_RHEA_PRIV_CTL:
- .word 0xFFFED300
-
-/* EMIFF SDRAM Configuration register
- - self refresh disable
- - auto refresh enabled
- - SDRAM type 64 Mb, 16 bits bus 4 banks
- - power down enabled
- - SDRAM clock disabled
- */
-SDRAM_CONFIG_VAL:
- .word 0x0C017DF4
-
-/* Burst full page length ; cas latency = 3 */
-SDRAM_MRS_VAL:
- .word 0x00000037
-
-VAL_ARM_CKCTL:
- .word 0x6505
-VAL_DPLL1_CTL:
- .word 0x3412
-
-#ifdef CONFIG_P2_OMAP730
-VAL_TC_EMIFS_CS0_CONFIG:
- .word 0x0000FFF3
-VAL_TC_EMIFS_CS1_CONFIG:
- .word 0x00004278
-VAL_TC_EMIFS_CS2_CONFIG:
- .word 0x00004278
-VAL_TC_EMIFS_CS3_CONFIG:
- .word 0x00004278
-VAL_TC_EMIFS_CS1_ADVANCED:
- .word 0x00000022
-#endif
-
-VAL_ARM_IDLECT1:
- .word 0x00000400
-VAL_ARM_IDLECT2:
- .word 0x00000886
-VAL_ARM_IDLECT3:
- .word 0x00000015
-
-WATCHDOG_VAL1:
- .word 0x000000f5
-WATCHDOG_VAL2:
- .word 0x000000a0
-
-VAL_MPU_LOAD_TIMER:
- .word 0xffffffff
-VAL_MPU_CNTL_TIMER:
- .word 0xffffffa1
-
-VAL_RHEA_CTL:
- .word 0xFF22
-
-/* Config Register vals */
-PERSEUS2_CONFIG_BASE:
- .word 0xFFFE1000
-
-.equ CONFIG_PCC_CONF, 0xB4
-.equ CONFIG_MODE1, 0x10
-.equ CONFIG_MODE2, 0x14
-.equ CONF_MOD_UART1_CLK_MODE_R, 0x0A
-
-/* misc values */
-.equ IRQ_MASK, 0x80 /* IRQ mask value */
-.equ FIQ_MASK, 0x40 /* FIQ mask value */