+++ /dev/null
-/*
- * Board specific setup info
- *
- * (C) Copyright 2003
- * Texas Instruments, <www.ti.com>
- *
- * -- Some bits of code used from rrload's head_OMAP1510.s --
- * Copyright (C) 2002 RidgeRun, Inc.
- *
- * 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_OMAP1510)
-#include <./configs/omap1510.h>
-#endif
-
-#define OMAP1510_CLKS ((1<<EN_XORPCK)|(1<<EN_PERCK)|(1<<EN_TIMCK)|(1<<EN_GPIOCK))
-
-
-_TEXT_BASE:
- .word CONFIG_SYS_TEXT_BASE /* sdram load addr from config.mk */
-
-.globl lowlevel_init
-lowlevel_init:
-
- /*
- * Configure 1510 pins functions to match our board.
- */
- ldr r0, REG_PULL_DWN_CTRL_0
- ldr r1, VAL_PULL_DWN_CTRL_0
- str r1, [r0]
- ldr r0, REG_PULL_DWN_CTRL_1
- ldr r1, VAL_PULL_DWN_CTRL_1
- str r1, [r0]
- ldr r0, REG_PULL_DWN_CTRL_2
- ldr r1, VAL_PULL_DWN_CTRL_2
- str r1, [r0]
- ldr r0, REG_PULL_DWN_CTRL_3
- ldr r1, VAL_PULL_DWN_CTRL_3
- str r1, [r0]
- ldr r0, REG_FUNC_MUX_CTRL_4
- ldr r1, VAL_FUNC_MUX_CTRL_4
- str r1, [r0]
- ldr r0, REG_FUNC_MUX_CTRL_5
- ldr r1, VAL_FUNC_MUX_CTRL_5
- str r1, [r0]
- ldr r0, REG_FUNC_MUX_CTRL_6
- ldr r1, VAL_FUNC_MUX_CTRL_6
- str r1, [r0]
- ldr r0, REG_FUNC_MUX_CTRL_7
- ldr r1, VAL_FUNC_MUX_CTRL_7
- str r1, [r0]
- ldr r0, REG_FUNC_MUX_CTRL_8
- ldr r1, VAL_FUNC_MUX_CTRL_8
- str r1, [r0]
- ldr r0, REG_FUNC_MUX_CTRL_9
- ldr r1, VAL_FUNC_MUX_CTRL_9
- str r1, [r0]
- ldr r0, REG_FUNC_MUX_CTRL_A
- ldr r1, VAL_FUNC_MUX_CTRL_A
- str r1, [r0]
- ldr r0, REG_FUNC_MUX_CTRL_B
- ldr r1, VAL_FUNC_MUX_CTRL_B
- str r1, [r0]
- ldr r0, REG_FUNC_MUX_CTRL_C
- ldr r1, VAL_FUNC_MUX_CTRL_C
- str r1, [r0]
- ldr r0, REG_FUNC_MUX_CTRL_D
- ldr r1, VAL_FUNC_MUX_CTRL_D
- str r1, [r0]
- ldr r0, REG_VOLTAGE_CTRL_0
- ldr r1, VAL_VOLTAGE_CTRL_0
- str r1, [r0]
- ldr r0, REG_TEST_DBG_CTRL_0
- ldr r1, VAL_TEST_DBG_CTRL_0
- str r1, [r0]
- ldr r0, REG_MOD_CONF_CTRL_0
- ldr r1, VAL_MOD_CONF_CTRL_0
- str r1, [r0]
-
- /* Move to 1510 mode */
- ldr r0, REG_COMP_MODE_CTRL_0
- ldr r1, VAL_COMP_MODE_CTRL_0
- str r1, [r0]
-
- /* Set up Traffic Ctlr*/
- ldr r0, REG_TC_IMIF_PRIO
- mov r1, #0x0
- str r1, [r0]
- ldr r0, REG_TC_EMIFS_PRIO
- str r1, [r0]
- ldr r0, REG_TC_EMIFF_PRIO
- str r1, [r0]
-
- ldr r0, REG_TC_EMIFS_CONFIG
- ldr r1, [r0]
- bic r1, r1, #0x08 /* clear the global power-down enable PDE bit */
- bic r1, r1, #0x01 /* write protect flash by clearing the WP bit */
- str r1, [r0] /* EMIFS GlB Configuration. (value 0x12 most likely) */
-
- ldr r0, _GPIO_PIN_CONTROL_REG
- mov r1,#0
- orr r1, r1, #0x0001 /* M_PCM_SYNC */
- orr r1, r1, #0x4000 /* IPC_ACTIVE */
- strh r1,[r0]
-
- ldr r0, _GPIO_DIR_CONTROL_REG
- mov r1,#0
- bic r1, r1, #0x0001 /* M_PCM_SYNC */
- bic r1, r1, #0x4000 /* IPC_ACTIVE */
- strh r1,[r0]
-
- ldr r0, _GPIO_DATA_OUTPUT_REG
- mov r1,#0
- bic r1, r1, #0x0001 /* M_PCM_SYNC */
- orr r1, r1, #0x4000 /* IPC_ACTIVE */
- strh r1,[r0]
-
- /* Setup some clock domains */
- ldr r1, =OMAP1510_CLKS
- ldr r0, REG_ARM_IDLECT2
- strh r1, [r0] /* CLKM, Clock domain control. */
-
- mov r1, #0x01 /* PER_EN bit */
- ldr r0, REG_ARM_RSTCT2
- strh r1, [r0] /* CLKM; Peripheral reset. */
-
- /* Set CLKM to Sync-Scalable */
- /* I supposidly 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 /* use 12Mhz ref, PER must be <= 50Mhz so /2 */
- ldr r0, REG_ARM_CKCTL
- strh r1, [r0]
-
- /* setup DPLL 1 */
- 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:
-
- /* Set memory timings corresponding to the new clock speed */
-
- /* Check execution location to determine current execution location
- * and branch to appropriate initialization code.
- */
- mov r0, #0x10000000 /* Load physical SDRAM base. */
- mov r1, pc /* Get current execution location. */
- cmp r1, r0 /* Compare. */
- bge skip_sdram /* Skip over EMIF-fast initialization if running from 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.
- */
- ldr r0, VAL_TC_EMIFF_SDRAM_CONFIG /* get good value */
- bic r3, r0, #0xC /* (BIT3|BIT2) ulConfig with auto-refresh disabled. */
- orr r3, r3, #0x8000000 /* (BIT27) Disable CLK when Power down or Self-Refresh */
- orr r3, r3, #0x4000000 /* BIT26 Power Down Enable */
- ldr r2, REG_TC_EMIFF_SDRAM_CONFIG /* Point to configuration register. */
- str r3, [r2] /* Store the passed value with AR disabled. */
-
- ldr r1, VAL_TC_EMIFF_MRS /* get MRS value */
- ldr r2, REG_TC_EMIFF_MRS /* Point to MRS register. */
- str r1, [r2] /* Store the passed value.*/
-
- ldr r2, REG_TC_EMIFF_SDRAM_CONFIG /* Point to configuration register. */
- str r0, [r2] /* Store the passed value. */
-
- /*
- * Delay for SDRAM initialization.
- */
- mov r3, #0x1800
-4:
- subs r3, r3, #1 /* Decrement count. */
- bne 4b
-
-skip_sdram:
-
- /* 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 */
-
- /* back to arch calling code */
- mov pc, lr
-
-/* the literal pools origin */
- .ltorg
-
-/* OMAP configuration registers */
-REG_FUNC_MUX_CTRL_0: /* 32 bits */
- .word 0xfffe1000
-REG_FUNC_MUX_CTRL_1: /* 32 bits */
- .word 0xfffe1004
-REG_FUNC_MUX_CTRL_2: /* 32 bits */
- .word 0xfffe1008
-REG_COMP_MODE_CTRL_0: /* 32 bits */
- .word 0xfffe100c
-REG_FUNC_MUX_CTRL_3: /* 32 bits */
- .word 0xfffe1010
-REG_FUNC_MUX_CTRL_4: /* 32 bits */
- .word 0xfffe1014
-REG_FUNC_MUX_CTRL_5: /* 32 bits */
- .word 0xfffe1018
-REG_FUNC_MUX_CTRL_6: /* 32 bits */
- .word 0xfffe101c
-REG_FUNC_MUX_CTRL_7: /* 32 bits */
- .word 0xfffe1020
-REG_FUNC_MUX_CTRL_8: /* 32 bits */
- .word 0xfffe1024
-REG_FUNC_MUX_CTRL_9: /* 32 bits */
- .word 0xfffe1028
-REG_FUNC_MUX_CTRL_A: /* 32 bits */
- .word 0xfffe102C
-REG_FUNC_MUX_CTRL_B: /* 32 bits */
- .word 0xfffe1030
-REG_FUNC_MUX_CTRL_C: /* 32 bits */
- .word 0xfffe1034
-REG_FUNC_MUX_CTRL_D: /* 32 bits */
- .word 0xfffe1038
-REG_PULL_DWN_CTRL_0: /* 32 bits */
- .word 0xfffe1040
-REG_PULL_DWN_CTRL_1: /* 32 bits */
- .word 0xfffe1044
-REG_PULL_DWN_CTRL_2: /* 32 bits */
- .word 0xfffe1048
-REG_PULL_DWN_CTRL_3: /* 32 bits */
- .word 0xfffe104c
-REG_VOLTAGE_CTRL_0: /* 32 bits */
- .word 0xfffe1060
-REG_TEST_DBG_CTRL_0: /* 32 bits */
- .word 0xfffe1070
-REG_MOD_CONF_CTRL_0: /* 32 bits */
- .word 0xfffe1080
-REG_TC_IMIF_PRIO: /* 32 bits */
- .word 0xfffecc00
-REG_TC_EMIFS_PRIO: /* 32 bits */
- .word 0xfffecc04
-REG_TC_EMIFF_PRIO: /* 32 bits */
- .word 0xfffecc08
-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
-REG_TC_EMIFF_SDRAM_CONFIG: /* 32 bits */
- .word 0xfffecc20
-REG_TC_EMIFF_MRS: /* 32 bits */
- .word 0xfffecc24
-/* MPU clock/reset/power mode control registers */
-REG_ARM_CKCTL: /* 16 bits */
- .word 0xfffece00
-REG_ARM_IDLECT2: /* 16 bits */
- .word 0xfffece08
-REG_ARM_RSTCT2: /* 16 bits */
- .word 0xfffece14
-REG_ARM_SYSST: /* 16 bits */
- .word 0xfffece18
-/* DPLL control registers */
-REG_DPLL1_CTL: /* 16 bits */
- .word 0xfffecf00
-/* identification code register */
-REG_IDCODE: /* 32 bits */
- .word 0xfffed404
-
-/* SX1 specific */
-_GPIO_PIN_CONTROL_REG:
- .word GPIO_PIN_CONTROL_REG
-_GPIO_DIR_CONTROL_REG:
- .word GPIO_DIR_CONTROL_REG
-_GPIO_DATA_OUTPUT_REG:
- .word GPIO_DATA_OUTPUT_REG
-
-VAL_COMP_MODE_CTRL_0:
- .word 0x0000eaef
-VAL_FUNC_MUX_CTRL_4:
- .word 0x00000000
-VAL_FUNC_MUX_CTRL_5:
- .word 0x00000000
-VAL_FUNC_MUX_CTRL_6:
- .word 0x00000001
-VAL_FUNC_MUX_CTRL_7:
- .word 0x00001000
-VAL_FUNC_MUX_CTRL_8:
- .word 0x00001240 /*[Knoller] Value of Symbian Image Wing B2*/
-VAL_FUNC_MUX_CTRL_9:
- .word 0x00201008
-VAL_FUNC_MUX_CTRL_A:
- .word 0x00001000
-VAL_FUNC_MUX_CTRL_B:
- .word 0x00000000
-VAL_FUNC_MUX_CTRL_C:
- .word 0x09008001 /*[Knoller] Value of Symbian Image Wing B2*/
-VAL_FUNC_MUX_CTRL_D:
- .word 0x00000000
-VAL_PULL_DWN_CTRL_0:
- .word 0xfffeffff
-VAL_PULL_DWN_CTRL_1:
- .word 0xd1ffffec
-VAL_PULL_DWN_CTRL_2:
- .word 0xffa80c5b
-VAL_PULL_DWN_CTRL_3:
- .word 0xffffc0fe
-VAL_VOLTAGE_CTRL_0:
- .word 0x00000007
-VAL_TEST_DBG_CTRL_0:
- /* The OMAP5910 TRM says this register must be 0, but HelenConfRegs
- * says to write a 7. Don't know what the right thing is to do, so
- * I'm leaving it at 7 since that's what was already here.
- */
- .word 0x00000007
-VAL_MOD_CONF_CTRL_0:
- .word 0x0da20000 /*[Knoller] Value of Symbian Image Wing B2*/
-
-VAL_ARM_CKCTL:
- .word 0x010D
-
-VAL_DPLL1_CTL:
- .word 0x3A33 /*[Hertle] Value of Symbian Image*/
-
-VAL_TC_EMIFS_CS1_CONFIG_PRELIM:
- .word 0x00001149
-
-VAL_TC_EMIFS_CS2_CONFIG_PRELIM:
- .word 0x00004158
-
-VAL_TC_EMIFS_CS0_CONFIG:
- .word 0x00213090 /*[Knoller] Value of Symbian Image Wing B2*/
-
-VAL_TC_EMIFS_CS1_CONFIG:
- .word 0x00215070 /*[Knoller] Value of Symbian Image Wing B2*/
-
-VAL_TC_EMIFS_CS2_CONFIG:
- .word 0x00001139 /*[Knoller] Value of Symbian Image Wing B2*/
-
-VAL_TC_EMIFS_CS3_CONFIG:
- .word 0x00001139 /*[Knoller] Value of Symbian Image Wing B2*/
-
-VAL_TC_EMIFF_SDRAM_CONFIG:
- .word 0x0105f0b4 /*[Knoller] Value of Symbian Image Wing B2*/
-
-
-VAL_TC_EMIFF_MRS:
- .word 0x00000027 /*[Knoller] Value of Symbian Image Wing B2*/
projects / karo-tx-uboot.git / blobdiff