| 1 | /*************************************************************************** |
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| 2 | * Copyright (c) 2012-2011, Broadcom Corporation |
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| 3 | * All Rights Reserved |
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| 4 | * Confidential Property of Broadcom Corporation |
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| 5 | * |
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| 6 | * THIS SOFTWARE MAY ONLY BE USED SUBJECT TO AN EXECUTED SOFTWARE LICENSE |
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| 7 | * AGREEMENT BETWEEN THE USER AND BROADCOM. YOU HAVE NO RIGHT TO USE OR |
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| 8 | * EXPLOIT THIS MATERIAL EXCEPT SUBJECT TO THE TERMS OF SUCH AN AGREEMENT. |
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| 9 | * |
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| 10 | * $brcm_Workfile: board.s $ |
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| 11 | * $brcm_Revision: Hydra_Software_Devel/1 $ |
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| 12 | * $brcm_Date: 4/28/11 1:38p $ |
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| 13 | * |
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| 14 | * Module Description: |
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| 15 | * |
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| 16 | * Revision History: |
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| 17 | * |
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| 18 | * $brcm_Log: /rockford/bsp/bcm97358/no-os/src/sde/board.s $ |
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| 19 | * |
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| 20 | * Hydra_Software_Devel/1 4/28/11 1:38p jkim |
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| 21 | * SWCFE-507: Initial file |
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| 22 | * |
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| 23 | * Hydra_Software_Devel/3 12/8/10 5:18p jkim |
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| 24 | * SWCFE-399: add support for alt UART |
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| 25 | * |
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| 26 | * Hydra_Software_Devel/2 11/12/10 4:28p jkim |
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| 27 | * SWCFE-399: indicate that UART0 instead of SDIO is used by writing |
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| 28 | * scratch register |
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| 29 | * |
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| 30 | * Hydra_Software_Devel/1 11/9/10 4:51p jkim |
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| 31 | * SWCFE-399: initial files |
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| 32 | * |
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| 33 | * Bsp_Software_Devel/2 3/16/10 1:29p jkim |
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| 34 | * SW7340-135: 1. Add SPI flash support. |
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| 35 | * |
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| 36 | * Bsp_Software_Devel/2 11/13/07 12:34p farshidf |
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| 37 | * PR36869: 7335 CFE |
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| 38 | * |
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| 39 | * Bsp_Software_Devel/2 10/24/07 3:25p farshidf |
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| 40 | * PR36360: new CFE core |
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| 41 | * |
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| 42 | |
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| 43 | ***************************************************************************/ |
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| 44 | #ifndef __ASSEMBLER__ |
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| 45 | #define __ASSEMBLER__ |
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| 46 | #endif |
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| 47 | #include "bmips.h" |
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| 48 | #include "boardcfg.h" |
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| 49 | #include "bchp_common.h" |
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| 50 | #include "bchp_sun_top_ctrl.h" |
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| 51 | |
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| 52 | .text |
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| 53 | /****************************************************************************** |
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| 54 | * Function: do_board_init |
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| 55 | * Arguments: None |
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| 56 | * Returns: v0 |
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| 57 | * Description: |
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| 58 | * Trashes: |
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| 59 | * |
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| 60 | * pseudo code: |
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| 61 | * |
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| 62 | ******************************************************************************/ |
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| 63 | |
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| 64 | LEAF(do_board_init) |
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| 65 | move s0, ra |
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| 66 | |
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| 67 | #if 0 |
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| 68 | /* set sdio scratch registers to indicate uart0 is used */ |
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| 69 | bal set_sdio_scratch_reg |
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| 70 | nop |
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| 71 | #endif |
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| 72 | |
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| 73 | jr s0 |
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| 74 | nop |
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| 75 | END(do_board_init) |
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| 76 | |
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| 77 | /* get_boot_mode: |
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| 78 | * returns parmaetes in v0 |
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| 79 | * parameters:none |
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| 80 | * Returns: in v0 |
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| 81 | * 0-6: boot from NAND |
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| 82 | * 7-9: boot from SPI |
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| 83 | * 10-11: boot from Parallel NOR |
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| 84 | */ |
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| 85 | |
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| 86 | LEAF(get_boot_mode) |
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| 87 | |
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| 88 | /* |
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| 89 | * If t2 is <= 6, CFE is to boot from NAND |
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| 90 | */ |
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| 91 | li t0, PHYS_TO_K1(BCHP_PHYSICAL_OFFSET+BCHP_SUN_TOP_CTRL_STRAP_VALUE_0) |
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| 92 | lw t1, 0(t0) |
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| 93 | li t0, BCHP_SUN_TOP_CTRL_STRAP_VALUE_0_strap_boot_shape_MASK |
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| 94 | and t0, t1, t0 |
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| 95 | srl t2, t0, BCHP_SUN_TOP_CTRL_STRAP_VALUE_0_strap_boot_shape_SHIFT |
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| 96 | li t3, 0x6 |
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| 97 | ble t2, t3, NAND_BOOT_DEV |
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| 98 | nop |
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| 99 | |
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| 100 | /* If t2 is <= 9, CFE is to boot from SPI */ |
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| 101 | li t3, 0x9 |
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| 102 | ble t2, t3, SPI_NOR_BOOT_DEV |
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| 103 | nop |
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| 104 | |
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| 105 | /* boot from NOR. */ |
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| 106 | li v0, BOOT_FROM_NOR |
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| 107 | b 1f |
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| 108 | nop |
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| 109 | |
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| 110 | NAND_BOOT_DEV: |
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| 111 | li v0, BOOT_FROM_NAND |
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| 112 | b 1f |
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| 113 | nop |
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| 114 | SPI_NOR_BOOT_DEV: |
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| 115 | li v0, BOOT_FROM_SPI |
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| 116 | |
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| 117 | 1: |
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| 118 | jr ra |
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| 119 | nop |
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| 120 | |
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| 121 | END(get_boot_mode) |
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| 122 | |
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