| /* |
| * Board specific setup info |
| * |
| * (C) Copyright 2010 |
| * Texas Instruments, <www.ti.com> |
| * |
| * Author : |
| * Aneesh V <aneesh@ti.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 <asm/arch/omap.h> |
| #include <asm/arch/spl.h> |
| #include <linux/linkage.h> |
| |
| ENTRY(save_boot_params) |
| /* |
| * See if the rom code passed pointer is valid: |
| * It is not valid if it is not in non-secure SRAM |
| * This may happen if you are booting with the help of |
| * debugger |
| */ |
| ldr r2, =NON_SECURE_SRAM_START |
| cmp r2, r0 |
| bgt 1f |
| ldr r2, =NON_SECURE_SRAM_END |
| cmp r2, r0 |
| blt 1f |
| |
| /* |
| * store the boot params passed from rom code or saved |
| * and passed by SPL |
| */ |
| cmp r0, #0 |
| beq 1f |
| ldr r1, =boot_params |
| str r0, [r1] |
| #ifdef CONFIG_SPL_BUILD |
| /* Store the boot device in spl_boot_device */ |
| ldrb r2, [r0, #BOOT_DEVICE_OFFSET] @ r1 <- value of boot device |
| and r2, #BOOT_DEVICE_MASK |
| ldr r3, =boot_params |
| strb r2, [r3, #BOOT_DEVICE_OFFSET] @ spl_boot_device <- r1 |
| |
| /* boot mode is passed only for devices that can raw/fat mode */ |
| cmp r2, #BOOT_DEVICE_XIP |
| blt 2f |
| cmp r2, #BOOT_DEVICE_MMC2 |
| bgt 2f |
| /* Store the boot mode (raw/FAT) in omap_bootmode */ |
| ldr r2, [r0, #DEV_DESC_PTR_OFFSET] @ get the device descriptor ptr |
| ldr r2, [r2, #DEV_DATA_PTR_OFFSET] @ get the pDeviceData ptr |
| ldr r2, [r2, #BOOT_MODE_OFFSET] @ get the boot mode |
| ldr r3, =omap_bootmode |
| str r2, [r3] |
| #endif |
| 2: |
| ldrb r2, [r0, #CH_FLAGS_OFFSET] |
| ldr r3, =boot_params |
| strb r2, [r3, #CH_FLAGS_OFFSET] |
| 1: |
| bx lr |
| ENDPROC(save_boot_params) |
| |
| ENTRY(set_pl310_ctrl_reg) |
| PUSH {r4-r11, lr} @ save registers - ROM code may pollute |
| @ our registers |
| LDR r12, =0x102 @ Set PL310 control register - value in R0 |
| .word 0xe1600070 @ SMC #0 - hand assembled because -march=armv5 |
| @ call ROM Code API to set control register |
| POP {r4-r11, pc} |
| ENDPROC(set_pl310_ctrl_reg) |