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-rw-r--r--board/ti/omap5912osk/lowlevel_init.S477
1 files changed, 0 insertions, 477 deletions
diff --git a/board/ti/omap5912osk/lowlevel_init.S b/board/ti/omap5912osk/lowlevel_init.S
deleted file mode 100644
index e05a1c7..0000000
--- a/board/ti/omap5912osk/lowlevel_init.S
+++ /dev/null
@@ -1,477 +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
- *
- * Modified for OMAP 5912 OSK board by Rishi Bhattacharya, Apr 2004
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <config.h>
-#include <version.h>
-
-#if defined(CONFIG_OMAP1610)
-#include <./configs/omap1510.h>
-#endif
-
-.globl lowlevel_init
-lowlevel_init:
-
- /*------------------------------------------------------*
- * Ensure i-cache is enabled *
- * To configure TC regs without fetching instruction *
- *------------------------------------------------------*/
- mrc p15, 0, r0, c1, c0
- orr r0, r0, #0x1000
- mcr p15, 0, r0, c1, c0
-
- /*------------------------------------------------------*
- *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 */
- mov r1, #0x1000
- ldr r0, REG_ARM_SYSST
-
- mov r2, #0
-1: cmp r2, #1
- streqh r1, [r0]
- add r2, r2, #1
- cmp r2, #0x100 /* 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 */
- ldr r3, VAL_SDRAM_CONFIG_SDF0
-
- /* 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. */
-
- /* identify the device revision, -- TMX or TMP(TMS) */
- ldr r0, REG_DEVICE_ID
- ldr r1, [r0]
-
- ldr r0, VAL_DEVICE_ID_TMP
- mov r1, r1, lsl #15
- mov r1, r1, lsr #16
- cmp r0, r1
- bne skip_TMP_Patch
-
- /* Enable TMP/TMS device new features */
- mov r0, #1
- ldr r1, REG_TC_EMIFF_DOUBLER
- str r0, [r1]
-
- /* Enable new ac parameters */
- mov r0, #0x0b
- ldr r1, REG_SDRAM_CONFIG2
- str r0, [r1]
-
- ldr r3, VAL_SDRAM_CONFIG_SDF1
-
-skip_TMP_Patch:
-
- /*
- * Delay for SDRAM initialization.
- */
- mov r0, #0x1800 /* value should be checked */
-3:
- subs r0, r0, #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
- str r3, [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 r0, #0x0100
-waitMDDR2:
- subs r0, r0, #1
- bne waitMDDR2
-
- /*
- * Delay for SDRAM initialization.
- */
- mov r0, #0x1800
-4:
- subs r0, r0, #1 /* Decrement count. */
- bne 4b
- b common_tc
-
-skip_sdram:
- ldr r0, REG_SDRAM_CONFIG
- str r3, [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 */
-
- ldr r1, VAL_TC_EMIFS_DWS
- ldr r0, REG_TC_EMIFS_DWS
- str r1, [r0] /* Enable EMIFS.RDY for CS1 (ether) */
-
-#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]
-
- /*
- * Setup a temporary stack
- */
- ldr sp, SRAM_STACK
- bic sp, sp, #7 /* 8-byte alignment for ABI compliance */
-
- /*
- * Save the old lr(passed in ip) and the current lr to stack
- */
- push {ip, lr}
-
- /*
- * go setup pll, mux, memory
- */
- bl s_init
- pop {ip, pc}
-
- /* back to arch calling code */
- mov pc, lr
-
- /* the literal pools origin */
- .ltorg
-
-REG_DEVICE_ID: /* 32 bits */
- .word 0xfffe2004
-REG_TC_EMIFS_CONFIG:
- .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_EMIFS_DWS: /* 32 bits */
- .word 0xfffecc40
-#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
-REG_SDRAM_CONFIG2:
- .word 0xfffecc3c
-REG_TC_EMIFF_DOUBLER: /* 32 bits */
- .word 0xfffecc60
-
-/* 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 /* Phase of 72deg, write offset +31 */
-
-/* URD DLL register */
-REG_DLL_URD_CONTROL:
- .word 0xfffeccc0
-DLL_URD_CONTROL_VAL:
- .word 0x00800002 /* Phase of 72deg, read offset +31 */
-
-/* LRD DLL register */
-REG_DLL_LRD_CONTROL:
- .word 0xfffecccc
-DLL_LRD_CONTROL_VAL:
- .word 0x00800002 /* read offset +31 */
-
-REG_WATCHDOG:
- .word 0xfffec808
-WATCHDOG_VAL1:
- .word 0x000000f5
-WATCHDOG_VAL2:
- .word 0x000000a0
-
-REG_MPU_LOAD_TIMER:
- .word 0xfffec504
-REG_MPU_CNTL_TIMER:
- .word 0xfffec500
-VAL_MPU_LOAD_TIMER:
- .word 0xffffffff
-VAL_MPU_CNTL_TIMER:
- .word 0xffffffa1
-
-/* 96 MHz Samsung Mobile DDR */
-/* Original setting for TMX device */
-VAL_SDRAM_CONFIG_SDF0:
- .word 0x0014e6fe
-
-/* NEW_SYS_FREQ mode (valid only TMP/TMS devices) */
-VAL_SDRAM_CONFIG_SDF1:
- .word 0x0114e6fe
-
-VAL_ARM_CKCTL:
- .word 0x2000 /* was: 0x3000, now use CLK_REF for timer input */
-VAL_DPLL1_CTL:
- .word 0x2830
-
-#ifdef CONFIG_OSK_OMAP5912
-VAL_TC_EMIFS_CS0_CONFIG:
- .word 0x002130b0
-VAL_TC_EMIFS_CS1_CONFIG:
- .word 0x00001133
-VAL_TC_EMIFS_CS2_CONFIG:
- .word 0x000055f0
-VAL_TC_EMIFS_CS3_CONFIG:
- .word 0x88013141
-VAL_TC_EMIFS_DWS: /* Enable EMIFS.RDY for CS1 access (ether) */
- .word 0x000000c0
-VAL_DEVICE_ID_TMP: /* TMP/TMS=0xb65f, TMX=0xb58c */
- .word 0xb65f
-#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 0x88013141
-VAL_TC_EMIFS_CS1_ADVANCED:
- .word 0x00000022
-#endif
-
-VAL_ARM_IDLECT1:
- .word 0x00000400
-VAL_ARM_IDLECT2:
- .word 0x00000886
-VAL_ARM_IDLECT3:
- .word 0x00000015
-
-SRAM_STACK:
- .word CONFIG_SYS_INIT_SP_ADDR
-
-/* command values */
-.equ CMD_SDRAM_NOP, 0x00000000
-.equ CMD_SDRAM_PRECHARGE, 0x00000001
-.equ CMD_SDRAM_AUTOREFRESH, 0x00000002
-.equ CMD_SDRAM_CKE_SET_HIGH, 0x00000007