2 * Board specific setup info
5 * Texas Instruments, <www.ti.com>
8 * Aneesh V <aneesh@ti.com>
10 * See file CREDITS for list of people who contributed to this
13 * This program is free software; you can redistribute it and/or
14 * modify it under the terms of the GNU General Public License as
15 * published by the Free Software Foundation; either version 2 of
16 * the License, or (at your option) any later version.
18 * This program is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 * GNU General Public License for more details.
23 * You should have received a copy of the GNU General Public License
24 * along with this program; if not, write to the Free Software
25 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
29 #include <asm/arch/omap.h>
30 #include <asm/arch/spl.h>
31 #include <linux/linkage.h>
33 ENTRY(save_boot_params)
35 * See if the rom code passed pointer is valid:
36 * It is not valid if it is not in non-secure SRAM
37 * This may happen if you are booting with the help of
40 ldr r2, =NON_SECURE_SRAM_START
43 ldr r2, =NON_SECURE_SRAM_END
48 * store the boot params passed from rom code or saved
55 #ifdef CONFIG_SPL_BUILD
56 /* Store the boot device in spl_boot_device */
57 ldrb r2, [r0, #BOOT_DEVICE_OFFSET] @ r1 <- value of boot device
58 and r2, #BOOT_DEVICE_MASK
60 strb r2, [r3, #BOOT_DEVICE_OFFSET] @ spl_boot_device <- r1
62 /* boot mode is passed only for devices that can raw/fat mode */
63 cmp r2, #BOOT_DEVICE_XIP
65 cmp r2, #BOOT_DEVICE_MMC2
67 /* Store the boot mode (raw/FAT) in omap_bootmode */
68 ldr r2, [r0, #DEV_DESC_PTR_OFFSET] @ get the device descriptor ptr
69 ldr r2, [r2, #DEV_DATA_PTR_OFFSET] @ get the pDeviceData ptr
70 ldr r2, [r2, #BOOT_MODE_OFFSET] @ get the boot mode
71 ldr r3, =omap_bootmode
75 ldrb r2, [r0, #CH_FLAGS_OFFSET]
77 strb r2, [r3, #CH_FLAGS_OFFSET]
80 ENDPROC(save_boot_params)
82 ENTRY(set_pl310_ctrl_reg)
83 PUSH {r4-r11, lr} @ save registers - ROM code may pollute
85 LDR r12, =0x102 @ Set PL310 control register - value in R0
86 .word 0xe1600070 @ SMC #0 - hand assembled because -march=armv5
87 @ call ROM Code API to set control register
89 ENDPROC(set_pl310_ctrl_reg)