diff options
Diffstat (limited to 'board/apollon/lowlevel_init.S')
| -rw-r--r-- | board/apollon/lowlevel_init.S | 337 |
1 files changed, 0 insertions, 337 deletions
diff --git a/board/apollon/lowlevel_init.S b/board/apollon/lowlevel_init.S deleted file mode 100644 index f066fe4..0000000 --- a/board/apollon/lowlevel_init.S +++ /dev/null @@ -1,337 +0,0 @@ -/* - * Board specific setup info - * - * (C) Copyright 2005-2007 - * Samsung Electronics, - * Kyungmin Park <kyungmin.park@samsung.com> - * - * 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> -#include <asm/arch/omap2420.h> -#include <asm/arch/mem.h> -#include <asm/arch/clocks.h> -#include "mem.h" - -#define APOLLON_CS0_BASE 0x00000000 - -#ifdef PRCM_CONFIG_I -#define SDRC_ACTIM_CTRLA_0_VAL 0x7BA35907 -#define SDRC_ACTIM_CTRLB_0_VAL 0x00000013 -#define SDRC_RFR_CTRL_0_VAL 0x00044C01 -#elif defined(PRCM_CONFIG_II) -#define SDRC_ACTIM_CTRLA_0_VAL 0x4A59B485 -#define SDRC_ACTIM_CTRLB_0_VAL 0x0000000C -#define SDRC_RFR_CTRL_0_VAL 0x00030001 -#endif - -#define SDRAM_BASE_ADDRESS 0x80008000 - -_TEXT_BASE: - .word CONFIG_SYS_TEXT_BASE /* sdram load addr from config.mk */ - -.globl lowlevel_init -lowlevel_init: - -#ifdef CONFIG_SYS_NOR_BOOT - /* Check running in SDRAM */ - mov r0, pc, lsr #28 - cmp r0, #8 - beq prcm_setup - -flash_setup: - /* In Flash */ - ldr r0, =WD2_BASE - ldr r1, =WD_UNLOCK1 - str r1, [r0, #WSPR] - - ldr r1, =WD_UNLOCK2 - str r1, [r0, #WSPR] - - /* Pin muxing for SDRC */ - mov r1, #0x00 - ldr r0, =0x480000A1 /* ball C12, mode 0 */ - strb r1, [r0] - - ldr r0, =0x48000032 /* ball D11, mode 0 */ - strb r1, [r0] - - ldr r0, =0x480000A3 /* ball B13, mode 0 */ - strb r1, [r0] - - /* SDRC setting */ - ldr r0, =OMAP2420_SDRC_BASE - ldr r1, =0x00000010 - str r1, [r0, #0x10] - - ldr r1, =0x00000100 - str r1, [r0, #0x44] - - /* SDRC CS0 configuration */ - ldr r1, =0x00d04011 - str r1, [r0, #0x80] - - ldr r1, =SDRC_ACTIM_CTRLA_0_VAL - str r1, [r0, #0x9C] - - ldr r1, =SDRC_ACTIM_CTRLB_0_VAL - str r1, [r0, #0xA0] - - ldr r1, =SDRC_RFR_CTRL_0_VAL - str r1, [r0, #0xA4] - - ldr r1, =0x00000041 - str r1, [r0, #0x70] - - /* Manual command sequence */ - ldr r1, =0x00000007 - str r1, [r0, #0xA8] - - ldr r1, =0x00000000 - str r1, [r0, #0xA8] - - ldr r1, =0x00000001 - str r1, [r0, #0xA8] - - ldr r1, =0x00000002 - str r1, [r0, #0xA8] - str r1, [r0, #0xA8] - - /* - * CS0 SDRC Mode register - * Burst length = 4 - DDR memory - * Serial mode - * CAS latency = 3 - */ - ldr r1, =0x00000032 - str r1, [r0, #0x84] - - /* Note: You MUST set EMR values */ - /* EMR1 & EMR2 */ - ldr r1, =0x00000000 - str r1, [r0, #0x88] - str r1, [r0, #0x8C] - -#ifdef OLD_SDRC_DLLA_CTRL - /* SDRC_DLLA_CTRL */ - ldr r1, =0x00007306 - str r1, [r0, #0x60] - - ldr r1, =0x00007303 - str r1, [r0, #0x60] -#else - /* SDRC_DLLA_CTRL */ - ldr r1, =0x00000506 - str r1, [r0, #0x60] - - ldr r1, =0x00000503 - str r1, [r0, #0x60] -#endif - -#ifdef __BROKEN_FEATURE__ - /* SDRC_DLLB_CTRL */ - ldr r1, =0x00000506 - str r1, [r0, #0x68] - - ldr r1, =0x00000503 - str r1, [r0, #0x68] -#endif - - /* little delay after init */ - mov r2, #0x1800 -1: - subs r2, r2, #0x1 - bne 1b - - /* Setup base address */ - ldr r0, =0x00000000 /* NOR address */ - ldr r1, =SDRAM_BASE_ADDRESS /* SDRAM address */ - ldr r2, =0x20000 /* Size: 128KB */ - -copy_loop: - ldmia r0!, {r3-r10} - stmia r1!, {r3-r10} - cmp r0, r2 - ble copy_loop - - ldr r1, =SDRAM_BASE_ADDRESS - mov lr, pc - mov pc, r1 -#endif - -prcm_setup: - ldr r0, =OMAP2420_CM_BASE - ldr r1, [r0, #0x544] /* CLKSEL2_PLL */ - bic r1, r1, #0x03 - orr r1, r1, #0x02 - str r1, [r0, #0x544] - - ldr r1, [r0, #0x500] - bic r1, r1, #0x03 - orr r1, r1, #0x01 - str r1, [r0, #0x500] - - ldr r1, [r0, #0x140] - bic r1, r1, #0x1f - orr r1, r1, #0x02 - str r1, [r0, #0x140] - -#ifdef PRCM_CONFIG_I - ldr r1, =0x000003C3 -#else - ldr r1, =0x00000343 -#endif - str r1, [r0, #0x840] - - ldr r1, =0x00000002 - str r1, [r0, #0x340] - - ldr r1, =CM_CLKSEL1_CORE -#ifdef PRCM_CONFIG_I - ldr r2, =0x08300C44 -#else - ldr r2, =0x04600C26 -#endif - str r2, [r1] - - ldr r0, =OMAP2420_CM_BASE - ldr r1, [r0, #0x084] - and r1, r1, #0x01 - cmp r1, #0x01 - bne clkvalid - - b . - -clkvalid: - mov r1, #0x01 - str r1, [r0, #0x080] - -waitvalid: - ldr r1, [r0, #0x084] - and r1, r1, #0x01 - cmp r1, #0x00 - bne waitvalid - - ldr r0, =CM_CLKSEL1_PLL -#ifdef PRCM_CONFIG_I - ldr r1, =0x01837100 -#else - ldr r1, =0x01832100 -#endif - str r1, [r0] - - ldr r0, =PRCM_CLKCFG_CTRL - mov r1, #0x01 - str r1, [r0] - mov r6, #0x50 -loop1: - subs r6, r6, #0x01 - cmp r6, #0x01 - bne loop1 - - ldr r0, =CM_CLKEN_PLL - mov r1, #0x0f - str r1, [r0] - - mov r6, #0x100 -loop2: - subs r6, r6, #0x01 - cmp r6, #0x01 - bne loop2 - - ldr r0, =0x48008200 - ldr r1, =0xbfffffff - str r1, [r0] - - ldr r0, =0x48008210 - ldr r1, =0xfffffff9 - str r1, [r0] - - ldr r0, =0x4806a004 - ldr r1, =0x00 - strb r1, [r0] - - ldr r0, =0x4806a020 - ldr r1, =0x07 - strb r1, [r0] - - ldr r0, =0x4806a00c - ldr r1, =0x83 - strb r1, [r0] - - ldr r0, =0x4806a000 - ldr r1, =0x1a - strb r1, [r0] - - ldr r0, =0x4806a004 - ldr r1, =0x00 - strb r1, [r0] - - ldr r0, =0x4806a00c - ldr r1, =0x03 - strb r1, [r0] - - ldr r0, =0x4806a010 - ldr r1, =0x03 - strb r1, [r0] - - ldr r0, =0x4806a008 - ldr r1, =0x04 - strb r1, [r0] - - ldr r0, =0x4806a020 - ldr r1, =0x00 - strb r1, [r0] - -#if 0 - ldr r0, =0x4806a000 - mov r1, #'u' - strb r1, [r0] -#endif - -#if 0 - /* LED0 OFF */ - ldr r3, =0x480000E5 - mov r4, #0x0b - strb r4, [r3] -#endif - - ldr sp, SRAM_STACK - str ip, [sp] /* stash old link register */ - mov ip, lr /* save link reg across call */ - bl s_init /* go setup pll,mux,memory */ - ldr ip, [sp] /* restore save ip */ - mov lr, ip /* restore link reg */ - - /* map interrupt controller */ - ldr r0, VAL_INTH_SETUP - mcr p15, 0, r0, c15, c2, 4 - - /* back to arch calling code */ - mov pc, lr - - /* the literal pools origin */ - .ltorg - -VAL_INTH_SETUP: - .word PERIFERAL_PORT_BASE -SRAM_STACK: - .word LOW_LEVEL_SRAM_STACK |