summaryrefslogtreecommitdiff
path: root/board/ti/omap1610inn/lowlevel_init.S
diff options
context:
space:
mode:
Diffstat (limited to 'board/ti/omap1610inn/lowlevel_init.S')
-rw-r--r--board/ti/omap1610inn/lowlevel_init.S452
1 files changed, 0 insertions, 452 deletions
diff --git a/board/ti/omap1610inn/lowlevel_init.S b/board/ti/omap1610inn/lowlevel_init.S
deleted file mode 100644
index b376ba5d0e..0000000000
--- a/board/ti/omap1610inn/lowlevel_init.S
+++ /dev/null
@@ -1,452 +0,0 @@
-/*
- * Board specific setup info
- *
- * (C) Copyright 2003
- * Texas Instruments, <www.ti.com>
- * Kshitij Gupta <Kshitij@ti.com>
- *
- * Modified for OMAP 1610 H2 board by Nishant Kamat, Jan 2004
- *
- * 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_OMAP1610)
-#include <./configs/omap1510.h>
-#endif
-
-
-_TEXT_BASE:
- .word CONFIG_SYS_TEXT_BASE /* sdram load addr from config.mk */
-
-.globl lowlevel_init
-lowlevel_init:
-
-
- /*------------------------------------------------------*
- *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]
-
-#ifdef CONFIG_CS_AUTOBOOT /* do the setup depending on boot mode */
- ldr r0, CONF_STATUS
- ldr r1, [r0]
- tst r1, #0x02
- beq disable_wd /* booting from RAM, skip setup */
-#endif
-
- 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, #0x0000
- 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... *
- *------------------------------------------------------*/
-disable_wd:
- 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.
- */
- /* Load physical SDRAM base. */
- mov r0, #0x10000000
- /* Get current execution location. */
- mov r1, pc
- /* Compare. */
- cmp r1, r0
- /* Skip over EMIF-fast initialization if running from SDRAM. */
- bge skip_sdram
-
- /*
- * Delay for SDRAM initialization.
- */
- mov r3, #0x1800 /* value should be checked */
-3:
- subs r3, r3, #0x1 /* Decrement count */
- bne 3b
-
-
- /*
- * Set SDRAM control values. Disable refresh before MRS command.
- */
-
- /* mobile ddr operation */
- ldr r0, REG_SDRAM_OPERATION
- mov r2, #07
- str r2, [r0]
-
- /* config register */
- ldr r0, REG_SDRAM_CONFIG
- ldr r1, SDRAM_CONFIG_VAL
- str r1, [r0]
-
- /* manual command register */
- ldr r0, REG_SDRAM_MANUAL_CMD
- /* issue set cke high */
- mov r1, #CMD_SDRAM_CKE_SET_HIGH
- str r1, [r0]
- /* issue nop */
- mov r1, #CMD_SDRAM_NOP
- str r1, [r0]
-
- mov r2, #0x0100
-waitMDDR1:
- subs r2, r2, #1
- bne waitMDDR1 /* delay loop */
-
- /* issue precharge */
- mov r1, #CMD_SDRAM_PRECHARGE
- str r1, [r0]
-
- /* issue autorefresh x 2 */
- mov r1, #CMD_SDRAM_AUTOREFRESH
- str r1, [r0]
- str r1, [r0]
-
- /* mrs register ddr mobile */
- ldr r0, REG_SDRAM_MRS
- mov r1, #0x33
- str r1, [r0]
-
- /* emrs1 low-power register */
- ldr r0, REG_SDRAM_EMRS1
- /* self refresh on all banks */
- mov r1, #0
- str r1, [r0]
-
- ldr r0, REG_DLL_URD_CONTROL
- ldr r1, DLL_URD_CONTROL_VAL
- str r1, [r0]
-
- ldr r0, REG_DLL_LRD_CONTROL
- ldr r1, DLL_LRD_CONTROL_VAL
- str r1, [r0]
-
- ldr r0, REG_DLL_WRT_CONTROL
- ldr r1, DLL_WRT_CONTROL_VAL
- str r1, [r0]
-
- /* delay loop */
- mov r2, #0x0100
-waitMDDR2:
- subs r2, r2, #1
- bne waitMDDR2
-
- /*
- * Delay for SDRAM initialization.
- */
- mov r3, #0x1800
-4:
- subs r3, r3, #1 /* Decrement count. */
- bne 4b
- b common_tc
-
-skip_sdram:
-
- ldr r0, REG_SDRAM_CONFIG
- ldr r1, SDRAM_CONFIG_VAL
- str r1, [r0]
-
-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_CS3_CONFIG
- ldr r0, REG_TC_EMIFS_CS3_CONFIG
- str r1, [r0] /* Chip Select 3 */
-
-#ifdef CONFIG_H2_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, lr
-
- /* the literal pools origin */
- .ltorg
-
-#ifdef CONFIG_CS_AUTOBOOT
-CONF_STATUS:
- .word 0xfffe1130 /* 32 bits */
-#endif
-
-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_H2_OMAP1610
-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
-
-/* Operation register */
-REG_SDRAM_OPERATION:
- .word 0xfffecc80
-
-/* Manual command register */
-REG_SDRAM_MANUAL_CMD:
- .word 0xfffecc84
-
-/* SDRAM MRS (New) config is: CAS latency is 2, burst length 8 */
-REG_SDRAM_MRS:
- .word 0xfffecc70
-
-/* SDRAM MRS (New) config is: CAS latency is 2, burst length 8 */
-REG_SDRAM_EMRS1:
- .word 0xfffecc78
-
-/* WRT DLL register */
-REG_DLL_WRT_CONTROL:
- .word 0xfffecc68
-DLL_WRT_CONTROL_VAL:
- .word 0x03f00002
-
-/* URD DLL register */
-REG_DLL_URD_CONTROL:
- .word 0xfffeccc0
-DLL_URD_CONTROL_VAL:
- .word 0x00800002
-
-/* LRD DLL register */
-REG_DLL_LRD_CONTROL:
- .word 0xfffecccc
-
-REG_WATCHDOG:
- .word 0xfffec808
-
-REG_MPU_LOAD_TIMER:
- .word 0xfffec504
-REG_MPU_CNTL_TIMER:
- .word 0xfffec500
-
-/* 96 MHz Samsung Mobile DDR */
-SDRAM_CONFIG_VAL:
- .word 0x001200f4
-
-DLL_LRD_CONTROL_VAL:
- .word 0x00800002
-
-VAL_ARM_CKCTL:
- .word 0x3000
-VAL_DPLL1_CTL:
- .word 0x2830
-
-#ifdef CONFIG_INNOVATOROMAP1610
-VAL_TC_EMIFS_CS0_CONFIG:
- .word 0x002130b0
-VAL_TC_EMIFS_CS1_CONFIG:
- .word 0x00001131
-VAL_TC_EMIFS_CS2_CONFIG:
- .word 0x000055f0
-VAL_TC_EMIFS_CS3_CONFIG:
- .word 0x88011131
-#endif
-
-#ifdef CONFIG_H2_OMAP1610
-VAL_TC_EMIFS_CS0_CONFIG:
- .word 0x00203331
-VAL_TC_EMIFS_CS1_CONFIG:
- .word 0x8180fff3
-VAL_TC_EMIFS_CS2_CONFIG:
- .word 0xf800f22a
-VAL_TC_EMIFS_CS3_CONFIG:
- .word 0x88011131
-VAL_TC_EMIFS_CS1_ADVANCED:
- .word 0x00000022
-#endif
-
-VAL_TC_EMIFF_SDRAM_CONFIG:
- .word 0x010290fc
-VAL_TC_EMIFF_MRS:
- .word 0x00000027
-
-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
-
-/* command values */
-.equ CMD_SDRAM_NOP, 0x00000000
-.equ CMD_SDRAM_PRECHARGE, 0x00000001
-.equ CMD_SDRAM_AUTOREFRESH, 0x00000002
-.equ CMD_SDRAM_CKE_SET_HIGH, 0x00000007