diff options
Diffstat (limited to 'board/freescale/mx35pdk/lowlevel_init.S')
| -rw-r--r-- | board/freescale/mx35pdk/lowlevel_init.S | 239 |
1 files changed, 0 insertions, 239 deletions
diff --git a/board/freescale/mx35pdk/lowlevel_init.S b/board/freescale/mx35pdk/lowlevel_init.S deleted file mode 100644 index 5dae5597fb6..00000000000 --- a/board/freescale/mx35pdk/lowlevel_init.S +++ /dev/null @@ -1,239 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0+ */ -/* - * Copyright (C) 2007, Guennadi Liakhovetski <lg@denx.de> - * - * (C) Copyright 2008-2010 Freescale Semiconductor, Inc. - */ - -#include <config.h> -#include <asm/arch/imx-regs.h> -#include <generated/asm-offsets.h> -#include "mx35pdk.h" -#include <asm/arch/lowlevel_macro.S> - -/* - * return soc version - * 0x10: TO1 - * 0x20: TO2 - * 0x30: TO3 - */ -.macro check_soc_version ret, tmp - ldr \tmp, =IIM_BASE_ADDR - ldr \ret, [\tmp, #IIM_SREV] - cmp \ret, #0x00 - moveq \tmp, #ROMPATCH_REV - ldreq \ret, [\tmp] - moveq \ret, \ret, lsl #4 - addne \ret, \ret, #0x10 -.endm - -/* CPLD on CS5 setup */ -.macro init_debug_board - ldr r0, =DBG_BASE_ADDR - ldr r1, =DBG_CSCR_U_CONFIG - str r1, [r0, #0x00] - ldr r1, =DBG_CSCR_L_CONFIG - str r1, [r0, #0x04] - ldr r1, =DBG_CSCR_A_CONFIG - str r1, [r0, #0x08] -.endm - -/* clock setup */ -.macro init_clock - ldr r0, =CCM_BASE_ADDR - - /* default CLKO to 1/32 of the ARM core*/ - ldr r1, [r0, #CLKCTL_COSR] - bic r1, r1, #0x00000FF00 - bic r1, r1, #0x0000000FF - mov r2, #0x00006C00 - add r2, r2, #0x67 - orr r1, r1, r2 - str r1, [r0, #CLKCTL_COSR] - - ldr r2, =CCM_CCMR_CONFIG - str r2, [r0, #CLKCTL_CCMR] - - check_soc_version r1, r2 - cmp r1, #CHIP_REV_2_0 - ldrhs r3, =CCM_MPLL_532_HZ - bhs 1f - ldr r2, [r0, #CLKCTL_PDR0] - tst r2, #CLKMODE_CONSUMER - ldrne r3, =CCM_MPLL_532_HZ /* consumer path*/ - ldreq r3, =CCM_MPLL_399_HZ /* auto path*/ -1: - str r3, [r0, #CLKCTL_MPCTL] - - ldr r1, =CCM_PPLL_300_HZ - str r1, [r0, #CLKCTL_PPCTL] - - ldr r1, =CCM_PDR0_CONFIG - bic r1, r1, #0x800000 - str r1, [r0, #CLKCTL_PDR0] - - ldr r1, [r0, #CLKCTL_CGR0] - orr r1, r1, #0x0C300000 - str r1, [r0, #CLKCTL_CGR0] - - ldr r1, [r0, #CLKCTL_CGR1] - orr r1, r1, #0x00000C00 - orr r1, r1, #0x00000003 - str r1, [r0, #CLKCTL_CGR1] - - ldr r1, [r0, #CLKCTL_CGR2] - orr r1, r1, #0x00C00000 - str r1, [r0, #CLKCTL_CGR2] -.endm - -.macro setup_sdram - ldr r0, =ESDCTL_BASE_ADDR - mov r3, #0x2000 - str r3, [r0, #0x0] - str r3, [r0, #0x8] - - /*ip(r12) has used to save lr register in upper calling*/ - mov fp, lr - - mov r5, #0x00 - mov r2, #0x00 - mov r1, #CSD0_BASE_ADDR - bl setup_sdram_bank - - mov r5, #0x00 - mov r2, #0x00 - mov r1, #CSD1_BASE_ADDR - bl setup_sdram_bank - - mov lr, fp - -1: - ldr r3, =ESDCTL_DELAY_LINE5 - str r3, [r0, #0x30] -.endm - -.globl lowlevel_init -lowlevel_init: - mov r10, lr - - core_init - - init_aips - - init_max - - init_m3if - - init_clock - init_debug_board - - cmp pc, #PHYS_SDRAM_1 - blo init_sdram_start - cmp pc, #(PHYS_SDRAM_1 + PHYS_SDRAM_1_SIZE) - blo skip_sdram_setup - -init_sdram_start: - /*init_sdram*/ - setup_sdram - -skip_sdram_setup: - mov lr, r10 - mov pc, lr - - -/* - * r0: ESDCTL control base, r1: sdram slot base - * r2: DDR type(0:DDR2, 1:MDDR) r3, r4:working base - */ -setup_sdram_bank: - mov r3, #0xE - tst r2, #0x1 - orreq r3, r3, #0x300 /*DDR2*/ - str r3, [r0, #0x10] - bic r3, r3, #0x00A - str r3, [r0, #0x10] - beq 2f - - mov r3, #0x20000 -1: subs r3, r3, #1 - bne 1b - -2: tst r2, #0x1 - ldreq r3, =ESDCTL_DDR2_CONFIG - ldrne r3, =ESDCTL_MDDR_CONFIG - cmp r1, #CSD1_BASE_ADDR - strlo r3, [r0, #0x4] - strhs r3, [r0, #0xC] - - ldr r3, =ESDCTL_0x92220000 - strlo r3, [r0, #0x0] - strhs r3, [r0, #0x8] - mov r3, #0xDA - ldr r4, =ESDCTL_PRECHARGE - strb r3, [r1, r4] - - tst r2, #0x1 - bne skip_set_mode - - cmp r1, #CSD1_BASE_ADDR - ldr r3, =ESDCTL_0xB2220000 - strlo r3, [r0, #0x0] - strhs r3, [r0, #0x8] - mov r3, #0xDA - ldr r4, =ESDCTL_DDR2_EMR2 - strb r3, [r1, r4] - ldr r4, =ESDCTL_DDR2_EMR3 - strb r3, [r1, r4] - ldr r4, =ESDCTL_DDR2_EN_DLL - strb r3, [r1, r4] - ldr r4, =ESDCTL_DDR2_RESET_DLL - strb r3, [r1, r4] - - ldr r3, =ESDCTL_0x92220000 - strlo r3, [r0, #0x0] - strhs r3, [r0, #0x8] - mov r3, #0xDA - ldr r4, =ESDCTL_PRECHARGE - strb r3, [r1, r4] - -skip_set_mode: - cmp r1, #CSD1_BASE_ADDR - ldr r3, =ESDCTL_0xA2220000 - strlo r3, [r0, #0x0] - strhs r3, [r0, #0x8] - mov r3, #0xDA - strb r3, [r1] - strb r3, [r1] - - ldr r3, =ESDCTL_0xB2220000 - strlo r3, [r0, #0x0] - strhs r3, [r0, #0x8] - tst r2, #0x1 - ldreq r4, =ESDCTL_DDR2_MR - ldrne r4, =ESDCTL_MDDR_MR - mov r3, #0xDA - strb r3, [r1, r4] - ldreq r4, =ESDCTL_DDR2_OCD_DEFAULT - streqb r3, [r1, r4] - ldreq r4, =ESDCTL_DDR2_EN_DLL - ldrne r4, =ESDCTL_MDDR_EMR - strb r3, [r1, r4] - - cmp r1, #CSD1_BASE_ADDR - ldr r3, =ESDCTL_0x82228080 - strlo r3, [r0, #0x0] - strhs r3, [r0, #0x8] - - tst r2, #0x1 - moveq r4, #0x20000 - movne r4, #0x200 -1: subs r4, r4, #1 - bne 1b - - str r3, [r1, #0x100] - ldr r4, [r1, #0x100] - cmp r3, r4 - movne r3, #1 - moveq r3, #0 - - mov pc, lr |