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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 196 | killagreg | 1 | /******************** (C) COPYRIGHT 2008 STMicroelectronics ******************** |
| 1 | ingob | 2 | * File Name : 91x_fmi.c |
| 3 | * Author : MCD Application Team |
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| 196 | killagreg | 4 | * Version : V2.1 |
| 5 | * Date : 12/22/2008 |
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| 6 | * Description : This file provides all the FMI firmware functions. |
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| 1 | ingob | 7 | ******************************************************************************** |
| 8 | * THE PRESENT SOFTWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS WITH |
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| 9 | * CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME. AS |
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| 10 | * A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT, INDIRECT |
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| 11 | * OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE CONTENT |
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| 12 | * OF SUCH SOFTWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING INFORMATION |
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| 13 | * CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. |
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| 14 | *******************************************************************************/ |
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| 15 | |||
| 16 | |||
| 17 | /* Standard include ----------------------------------------------------------*/ |
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| 18 | #include "91x_fmi.h" |
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| 19 | |||
| 20 | /* Include of other module interface headers ---------------------------------*/ |
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| 21 | /* Local includes ------------------------------------------------------------*/ |
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| 22 | /* Private typedef -----------------------------------------------------------*/ |
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| 23 | /* Private define ------------------------------------------------------------*/ |
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| 24 | |||
| 25 | #define TIMEOUT 0xFFFFFF /* Timeout value */ |
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| 26 | |||
| 27 | /* Private macro -------------------------------------------------------------*/ |
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| 28 | /* Private variables ---------------------------------------------------------*/ |
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| 29 | /* Private function prototypes -----------------------------------------------*/ |
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| 30 | /* Interface functions -------------------------------------------------------*/ |
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| 31 | /* Private functions ---------------------------------------------------------*/ |
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| 32 | |||
| 33 | |||
| 34 | /******************************************************************************* |
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| 35 | * Function Name : FMI_BankRemapConfig |
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| 36 | * Description : Configure the addresses and sizes of bank 0 and bank 1. |
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| 37 | * Input1 : FMI_BootBankSize: specifies the boot bank size. |
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| 38 | * This parameter can be one of the following values: |
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| 39 | * - 0x0: 32KBytes. |
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| 40 | * - 0x1: 64KBytes. |
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| 41 | * - 0x2: 128KBytes. |
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| 42 | * - 0x3: 256KBytes. |
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| 43 | * - 0x4: 512KBytes. |
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| 44 | * .... |
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| 45 | * - 0xB: 64MBytes. |
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| 46 | * Input2 : FMI_NonBootBankSize: specifies the non boot bank size. |
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| 47 | * This parameter can be one of the following values: |
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| 48 | * - 0x0: 8KBytes. |
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| 49 | * - 0x1: 16KBytes. |
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| 50 | * - 0x2: 32KBytes. |
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| 51 | * - 0x3: 64KBytes. |
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| 52 | * .... |
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| 53 | * - 0xD: 64MBytes. |
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| 54 | * Input3 : FMI_BootBankAddress: specifies the address of the boot bank. |
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| 55 | * Input4 : FMI_NonBootBankAddress: specifies the address of the non |
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| 56 | * boot bank. |
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| 57 | * Output : None |
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| 58 | * Return : None |
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| 59 | *******************************************************************************/ |
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| 60 | void FMI_BankRemapConfig(u8 FMI_BootBankSize, u8 FMI_NonBootBankSize, \ |
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| 61 | u32 FMI_BootBankAddress, u32 FMI_NonBootBankAddress) |
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| 62 | { |
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| 63 | FMI->BBSR = FMI_BootBankSize; |
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| 64 | FMI->NBBSR = FMI_NonBootBankSize; |
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| 65 | FMI->BBADR = (FMI_BootBankAddress >> 2); |
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| 66 | FMI->NBBADR = (FMI_NonBootBankAddress >> 2); |
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| 67 | FMI->CR |= 0x18; /* Enable bank 1 */ |
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| 68 | } |
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| 69 | |||
| 70 | /******************************************************************************* |
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| 71 | * Function Name : FMI_Config |
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| 72 | * Description : Configure the FMI. |
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| 73 | * Input1 : FMI_ReadWaitState: specifies the needed read wait states. |
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| 74 | * This parameter can be one of the following values: |
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| 75 | * - FMI_READ_WAIT_STATE_1: One read wait state. |
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| 76 | * - FMI_READ_WAIT_STATE_2: Two read wait states. |
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| 77 | * - FMI_READ_WAIT_STATE_3: Three read wait states. |
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| 78 | * Input2 : FMI_WriteWaitState: specifies the needed write wait states. |
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| 79 | * This parameter can be one of the following values: |
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| 80 | * - FMI_WRITE_WAIT_STATE_1: One write wait state. |
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| 81 | * - FMI_WRITE_WAIT_STATE_2: Two write wait states. |
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| 82 | * Input3 : FMI_PWD: specifies the power down mode status. |
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| 83 | * This parameter can be one of the following values: |
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| 84 | * - FMI_PWD_ENABLE: Enable the PWD. |
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| 85 | * - FMI_PWD_DISABLE: Disable the PWD. |
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| 86 | * Input4 : FMI_LVDEN: specifies the low voltage detector status. |
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| 87 | * This parameter can be one of the following values: |
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| 88 | * - FMI_LVD_ENABLE: Enable the LVD. |
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| 89 | * - FMI_LVD_DISABLE: Disable the LVD. |
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| 90 | * Input5 : FMI_FreqRange: specifies the working frequency range. |
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| 91 | * This parameter can be one of the following values: |
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| 92 | * - FMI_FREQ_LOW: Low working frequency (up to 66MHz). |
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| 93 | * - FMI_FREQ_HIGH: High working frequency (above 66MHz) . |
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| 94 | * Output : None |
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| 95 | * Return : None |
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| 196 | killagreg | 96 | * |
| 97 | *NOTE: |
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| 98 | *This function should be executed from SRAM when booting from bank1 |
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| 99 | *to avoid any conflicts(reading and writing at the same time in bank1) |
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| 100 | * |
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| 1 | ingob | 101 | *******************************************************************************/ |
| 102 | void FMI_Config(u16 FMI_ReadWaitState, u32 FMI_WriteWaitState, u16 FMI_PWD,\ |
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| 103 | u16 FMI_LVDEN, u16 FMI_FreqRange) |
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| 104 | { |
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| 105 | /* Configure the write wait state value */ |
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| 106 | if (FMI_WriteWaitState == FMI_WRITE_WAIT_STATE_1) |
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| 107 | { |
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| 108 | FMI->CR |= FMI_WRITE_WAIT_STATE_1; |
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| 109 | } |
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| 110 | else |
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| 111 | { |
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| 112 | FMI->CR &= FMI_WRITE_WAIT_STATE_0; |
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| 113 | } |
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| 114 | |||
| 115 | /* Write a write flash configuration register command */ |
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| 116 | *(vu16 *)FMI_BANK_1 = 0x60; |
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| 117 | |||
| 118 | /* Configure the flash configuration register */ |
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| 119 | *(vu16 *)(FMI_BANK_1|FMI_ReadWaitState|FMI_PWD|FMI_LVDEN|FMI_FreqRange) = 0x03; |
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| 120 | } |
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| 121 | |||
| 122 | /******************************************************************************* |
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| 123 | * Function Name : FMI_EraseSector |
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| 124 | * Description : Erase the needed sector. |
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| 125 | * Input : FMI_Sector: specifies the sector to be erased. |
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| 126 | * This parameter can be one of the following values: |
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| 127 | * - FMI_B0S0: FMI bank 0 sector 0. |
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| 196 | killagreg | 128 | * ... |
| 129 | * - FMI_B0S31: FMI bank 0 sector 31. |
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| 130 | * |
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| 131 | * |
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| 1 | ingob | 132 | * - FMI_B1S0: FMI bank 1 sector 0. |
| 196 | killagreg | 133 | * ... |
| 134 | * - FMI_B1S7: FMI bank 1 sector 7. |
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| 1 | ingob | 135 | * Output : None |
| 136 | * Return : None |
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| 137 | *******************************************************************************/ |
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| 138 | void FMI_EraseSector(vu32 FMI_Sector) |
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| 139 | { |
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| 140 | /* Write an erase set-up command to the sector */ |
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| 141 | *(vu16 *)FMI_Sector = 0x20; |
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| 142 | |||
| 143 | /* Write an erase confirm command to the sector */ |
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| 144 | *(vu16 *)FMI_Sector = 0xD0; |
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| 145 | } |
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| 146 | |||
| 147 | /******************************************************************************* |
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| 148 | * Function Name : FMI_EraseBank |
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| 149 | * Description : Erase the needed bank. |
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| 150 | * Input : FMI_Bank: specifies the bank to be erased. |
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| 151 | * This parameter can be one of the following values: |
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| 152 | * - FMI_BANK_0: FMI bank 0. |
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| 153 | * - FMI_BANK_1: FMI bank 1. |
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| 154 | * Output : None |
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| 155 | * Return : None |
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| 156 | *******************************************************************************/ |
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| 157 | void FMI_EraseBank(vu32 FMI_Bank) |
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| 158 | { |
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| 159 | /* Write a bank erase set-up command to the bank */ |
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| 160 | *(vu16 *)FMI_Bank = 0x80; |
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| 161 | |||
| 162 | /* Write an erase confirm command to the sector */ |
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| 163 | *(vu16 *)FMI_Bank = 0xD0; |
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| 164 | } |
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| 165 | |||
| 166 | /******************************************************************************* |
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| 167 | * Function Name : FMI_WriteHalfWord |
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| 168 | * Description : Write a halfword to the needed Flash memory address. |
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| 169 | * Input 1 : FMI_Address: specifies the address offset where the data will |
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| 170 | * be written. |
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| 171 | * Input 2 : FMI_Data: the needed data. |
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| 172 | * Output : None |
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| 173 | * Return : None |
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| 174 | *******************************************************************************/ |
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| 175 | void FMI_WriteHalfWord(u32 FMI_Address, u16 FMI_Data) |
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| 176 | { |
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| 177 | /* Write a program command to the sector to be written */ |
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| 178 | *(vu16 *)(FMI_Address & 0xFFFFFFFC) = 0x40; |
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| 179 | |||
| 180 | /* Write the halfword to the destination address */ |
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| 181 | *(vu16 *)FMI_Address = FMI_Data; |
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| 182 | } |
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| 183 | |||
| 184 | /******************************************************************************* |
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| 185 | * Function Name : FMI_WriteOTPHalfWord |
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| 186 | * Description : Write a halfword to the needed OTP sector address. |
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| 187 | * Input 1 : FMI_OTPHWAddress: specifies the halfword address offset |
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| 188 | * where the data will be written. |
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| 189 | * This parameter can be one of the following values: |
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| 190 | * - FMI_OTP_LOW_HALFWORD_0: OTP Low halfword 0. |
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| 191 | * - FMI_OTP_HIGH_HALFWORD_0: OTP High halfword 0. |
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| 192 | * - FMI_OTP_LOW_HALFWORD_1: OTP Low halfword 1. |
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| 193 | * - FMI_OTP_HIGH_HALFWORD_1: OTP High halfword 1. |
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| 194 | * - FMI_OTP_LOW_HALFWORD_2: OTP Low halfword 2. |
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| 195 | * - FMI_OTP_HIGH_HALFWORD_2: OTP High halfword 2. |
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| 196 | * - FMI_OTP_LOW_HALFWORD_3: OTP Low halfword 3. |
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| 197 | * - FMI_OTP_HIGH_HALFWORD_3: OTP High halfword 3. |
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| 198 | * - FMI_OTP_LOW_HALFWORD_4: OTP Low halfword 4. |
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| 199 | * - FMI_OTP_HIGH_HALFWORD_4: OTP High halfword 4. |
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| 200 | * - FMI_OTP_LOW_HALFWORD_5: OTP Low halfword 5. |
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| 201 | * - FMI_OTP_HIGH_HALFWORD_5: OTP High halfword 5. |
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| 202 | * - FMI_OTP_LOW_HALFWORD_6: OTP Low halfword 6. |
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| 203 | * - FMI_OTP_HIGH_HALFWORD_6: OTP High halfword 6. |
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| 204 | * - FMI_OTP_LOW_HALFWORD_7: OTP Low halfword 7. |
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| 205 | * - FMI_OTP_HIGH_HALFWORD_7: OTP High halfword 7. |
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| 206 | * Input 2 : FMI_OTPData: The needed OTP data. |
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| 207 | * Output : None |
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| 208 | * Return : None |
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| 209 | *******************************************************************************/ |
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| 210 | void FMI_WriteOTPHalfWord(u8 FMI_OTPHWAddress, u16 FMI_OTPData) |
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| 211 | { |
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| 212 | /* Write a write OTP command to the needed address */ |
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| 213 | *(vu16 *)(FMI_BANK_1) = 0xC0; |
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| 214 | |||
| 215 | /* Write the halfword to the destination address */ |
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| 216 | *(vu16 *)(FMI_BANK_1 + FMI_OTPHWAddress) = FMI_OTPData; |
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| 217 | } |
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| 218 | |||
| 219 | /******************************************************************************* |
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| 220 | * Function Name : FMI_ReadWord |
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| 221 | * Description : Read the correspondent data. |
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| 222 | * Input : FMI_Address: specifies the needed address. |
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| 223 | * Output : None |
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| 224 | * Return : The data contained in the specified address. |
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| 225 | *******************************************************************************/ |
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| 226 | u32 FMI_ReadWord(u32 FMI_Address) |
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| 227 | { |
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| 228 | return(*(u32*)FMI_Address); |
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| 229 | } |
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| 230 | |||
| 231 | /******************************************************************************* |
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| 232 | * Function Name : FMI_ReadOTPData |
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| 233 | * Description : Read data from the OTP sector. |
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| 234 | * Input : FMI_OTPAddress: specifies the address of the data to be read. |
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| 235 | * This parameter can be one of the following values: |
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| 196 | killagreg | 236 | * - FMI_OTP_WORD_0: OTP word 0 . |
| 237 | * - FMI_OTP_WORD_1: OTP word 1 . |
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| 238 | * - FMI_OTP_WORD_2: OTP word 2 . |
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| 239 | * - FMI_OTP_WORD_3: OTP word 3 . |
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| 240 | * - FMI_OTP_WORD_4: OTP word 4 . |
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| 241 | * - FMI_OTP_WORD_5: OTP word 5 . |
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| 242 | * - FMI_OTP_WORD_6: OTP word 6 . |
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| 243 | * - FMI_OTP_WORD_7: OTP word 7 . |
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| 1 | ingob | 244 | * Output : None |
| 245 | * Return : The needed OTP words. |
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| 246 | *******************************************************************************/ |
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| 247 | u32 FMI_ReadOTPData(u8 FMI_OTPAddress) |
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| 248 | { |
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| 249 | u32 OTP_Data = 0x0; |
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| 250 | /* write a read OTP sector command */ |
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| 251 | *(vu16 *)(FMI_BANK_1) = 0x98; |
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| 252 | |||
| 253 | /* Read the correspondent data */ |
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| 254 | OTP_Data = (*(vu32*)(FMI_BANK_1 + FMI_OTPAddress)); |
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| 255 | |||
| 256 | /* Write a read array command */ |
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| 257 | *(vu16 *)(FMI_BANK_1) = 0xFF; |
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| 258 | |||
| 259 | return OTP_Data; |
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| 260 | } |
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| 261 | |||
| 262 | /******************************************************************************* |
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| 263 | * Function Name : FMI_GetFlagStatus |
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| 264 | * Description : Check whether the specified FMI flag is set or not. |
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| 265 | * Input1 : FMI_Flag: flag to check. |
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| 266 | * This parameter can be one of the following values: |
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| 267 | * - FMI_FLAG_SPS: Sector Protection Status Flag. |
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| 268 | * - FMI_FLAG_PSS: Program Suspend Status Flag. |
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| 269 | * - FMI_FLAG_PS: Program Status Flag. |
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| 270 | * - FMI_FLAG_ES: Erase Status Flag. |
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| 271 | * - FMI_FLAG_ESS: Erase Suspend Status Flag. |
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| 272 | * - FMI_FLAG_PECS: FPEC Status Flag. |
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| 273 | * Input2 : FMI_Bank: specifies the needed bank. |
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| 274 | * This parameter can be one of the following values: |
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| 275 | * - FMI_BANK_0: FMI bank 0. |
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| 276 | * - FMI_BANK_1: FMI bank 1. |
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| 277 | * Output : None |
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| 278 | * Return : None |
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| 279 | *******************************************************************************/ |
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| 280 | FlagStatus FMI_GetFlagStatus(u8 FMI_Flag, vu32 FMI_Bank) |
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| 281 | { |
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| 282 | u16 FMI_Status_Register = 0; |
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| 283 | |||
| 284 | /* Write a read status register command */ |
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| 285 | *(vu16 *)FMI_Bank = 0x70; |
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| 286 | |||
| 287 | /* Wait until operation completion */ |
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| 288 | while(!((*(vu16 *)FMI_Bank) & 0x80)); |
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| 289 | |||
| 290 | /* Read the status register */ |
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| 291 | FMI_Status_Register = *(vu16 *)FMI_Bank; |
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| 292 | |||
| 293 | /* Write a read array command */ |
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| 294 | *(vu16 *)FMI_Bank = 0xFF; |
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| 295 | |||
| 296 | if((FMI_Status_Register & FMI_Flag) != RESET) |
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| 297 | { |
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| 298 | return SET; |
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| 299 | } |
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| 300 | else |
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| 301 | { |
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| 302 | return RESET; |
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| 303 | } |
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| 304 | } |
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| 305 | |||
| 306 | /******************************************************************************* |
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| 307 | * Function Name : FMI_GetReadWaitStateValue |
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| 308 | * Description : Get the current Read wait state value. |
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| 309 | * Input : None |
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| 310 | * Output : None |
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| 311 | * Return : The current read wait states value. |
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| 312 | *******************************************************************************/ |
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| 313 | u16 FMI_GetReadWaitStateValue(void) |
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| 314 | { |
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| 315 | u16 FMI_Configuration_Register = 0; |
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| 196 | killagreg | 316 | /*Write a read RSIG command to any word address in Bank1*/ |
| 1 | ingob | 317 | *(vu16 *)FMI_BANK_1 = 0x90; |
| 196 | killagreg | 318 | |
| 1 | ingob | 319 | /* Read the flash configuration register */ |
| 196 | killagreg | 320 | #ifdef Flash_512KB_256KB |
| 1 | ingob | 321 | FMI_Configuration_Register = *(vu16 *)(FMI_BANK_1 + 0x14); |
| 196 | killagreg | 322 | #endif |
| 323 | |||
| 324 | #ifdef Flash_2MB_1MB |
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| 325 | FMI_Configuration_Register = *(vu16 *)(FMI_BANK_1 + 0x1C); |
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| 326 | #endif |
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| 1 | ingob | 327 | /* Write a read array command */ |
| 328 | *(vu16 *)FMI_BANK_1 = 0xFF; |
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| 329 | |||
| 196 | killagreg | 330 | FMI_Configuration_Register = ((FMI_Configuration_Register >> 11) + 1) & 0x3; |
| 331 | |||
| 1 | ingob | 332 | /* Return the wait states value */ |
| 333 | return FMI_Configuration_Register; |
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| 334 | } |
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| 335 | |||
| 336 | /******************************************************************************* |
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| 337 | * Function Name : FMI_GetWriteWaitStateValue |
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| 338 | * Description : Get the current write wait state value. |
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| 339 | * Input : None |
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| 340 | * Output : None |
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| 341 | * Return : The current write wait states value. |
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| 342 | *******************************************************************************/ |
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| 343 | u16 FMI_GetWriteWaitStateValue(void) |
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| 344 | { |
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| 345 | return ((u16)((FMI->CR & 0x100) >> 8)); |
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| 346 | } |
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| 347 | |||
| 348 | /******************************************************************************* |
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| 349 | * Function Name : FMI_SuspendEnable |
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| 350 | * Description : Suspend command enable. |
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| 351 | * Input : FMI_Bank: specifies the bank to be suspended. |
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| 352 | * This parameter can be one of the following values: |
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| 353 | * - FMI_BANK_0: FMI bank 0. |
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| 354 | * - FMI_BANK_1: FMI bank 1. |
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| 355 | * Output : None |
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| 356 | * Return : None |
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| 357 | *******************************************************************************/ |
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| 358 | void FMI_SuspendEnable(vu32 FMI_Bank) |
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| 359 | { |
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| 360 | /* Write a suspend command to the bank */ |
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| 361 | *(vu16 *)FMI_Bank = 0xB0; |
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| 362 | } |
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| 363 | |||
| 364 | /******************************************************************************* |
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| 365 | * Function Name : FMI_ResumeEnable |
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| 366 | * Description : Resume the suspended command. |
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| 367 | * Input : FMI_Bank: specifies the suspended bank. |
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| 368 | * This parameter can be one of the following values: |
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| 369 | * - FMI_BANK_0: FMI bank 0. |
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| 370 | * - FMI_BANK_1: FMI bank 1. |
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| 371 | * Output : None |
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| 372 | * Return : None |
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| 373 | *******************************************************************************/ |
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| 374 | void FMI_ResumeEnable(vu32 FMI_Bank) |
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| 375 | { |
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| 376 | /* Write a resume command to the bank */ |
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| 377 | *(vu16 *)FMI_Bank = 0xD0; |
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| 378 | } |
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| 379 | |||
| 380 | /******************************************************************************* |
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| 381 | * Function Name : FMI_ClearFlag |
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| 382 | * Description : Clear the FMI Flags on the correspondent bank. |
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| 383 | * Input : FMI_Bank: specifies the needed bank. |
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| 384 | * This parameter can be one of the following values: |
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| 385 | * - FMI_BANK_0: FMI bank 0. |
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| 386 | * - FMI_BANK_1: FMI bank 1. |
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| 387 | * Output : None |
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| 388 | * Return : None |
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| 389 | *******************************************************************************/ |
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| 390 | void FMI_ClearFlag(vu32 FMI_Bank) |
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| 391 | { |
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| 392 | /* Write a clear status register command */ |
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| 393 | *(vu16 *)FMI_Bank = 0x50; |
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| 394 | } |
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| 395 | |||
| 396 | /******************************************************************************* |
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| 397 | * Function Name : FMI_WriteProtectionCmd |
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| 398 | * Description : Enable or disable the write protection for the needed sector. |
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| 399 | * Input1 : FMI_Sector: specifies the sector to be protected or |
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| 400 | * unprotected. |
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| 401 | * This parameter can be one of the following values: |
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| 196 | killagreg | 402 | * |
| 403 | * - FMI_B0S0: FMI bank 0 sector 0. |
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| 404 | * ... |
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| 405 | * - FMI_B0S31: FMI bank 0 sector 31. |
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| 406 | * |
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| 407 | * |
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| 1 | ingob | 408 | * - FMI_B1S0: FMI bank 1 sector 0. |
| 196 | killagreg | 409 | * ... |
| 410 | * - FMI_B1S7: FMI bank 1 sector 7. |
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| 411 | * |
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| 1 | ingob | 412 | * Input2 : FMI_NewState: specifies the protection status. |
| 413 | * This parameter can be one of the following values: |
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| 414 | * - ENABLE: Enable the protection. |
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| 415 | * - DISABLE: Disable the protection. |
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| 416 | * Output : None |
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| 417 | * Return : None |
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| 418 | *******************************************************************************/ |
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| 419 | void FMI_WriteProtectionCmd(vu32 FMI_Sector, FunctionalState FMI_NewState) |
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| 420 | { |
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| 421 | if (FMI_NewState == ENABLE) |
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| 422 | { |
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| 423 | *(vu16*)FMI_Sector = 0x60; |
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| 424 | *(vu16*)FMI_Sector = 0x01; |
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| 425 | *(vu16*)FMI_Sector = 0xFF; |
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| 426 | } |
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| 427 | else /* DISABLE */ |
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| 428 | { |
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| 429 | *(vu16*)FMI_Sector = 0x60; |
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| 430 | *(vu16*)FMI_Sector = 0xD0; |
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| 431 | *(vu16*)FMI_Sector = 0xFF; |
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| 432 | } |
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| 433 | } |
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| 434 | |||
| 435 | |||
| 436 | /******************************************************************************* |
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| 437 | * Function Name : FMI_WaitForLastOperation |
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| 438 | * Description : Wait until the last operation (Write halfword, Write OTP |
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| 439 | * halfword, Erase sector and Erase bank) completion. |
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| 440 | * Input : FMI_Bank: specifies the bank where the operation is on going. |
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| 441 | * This parameter can be one of the following values: |
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| 442 | * - FMI_BANK_0: FMI bank 0. |
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| 443 | * - FMI_BANK_1: FMI bank 1. |
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| 444 | * Output : None |
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| 445 | * Return : The timeout status. |
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| 446 | * This parameter can be one of the following values: |
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| 447 | * - FMI_TIME_OUT_ERROR: Timeout error occurred. |
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| 448 | * - FMI_NO_TIME_OUT_ERROR: No timeout error. |
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| 449 | *******************************************************************************/ |
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| 450 | u8 FMI_WaitForLastOperation(vu32 FMI_Bank) |
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| 451 | { |
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| 452 | u32 Time_Out = 0; |
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| 453 | |||
| 454 | /* Write a read status register command */ |
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| 455 | *(vu16 *)(FMI_Bank) = 0x70; |
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| 456 | |||
| 457 | /* Wait until operation compeletion */ |
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| 458 | while((!((*(vu16 *)FMI_Bank) & 0x80))&&(Time_Out < TIMEOUT )) |
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| 459 | { |
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| 460 | Time_Out ++; /* Time Out */ |
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| 461 | } |
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| 462 | |||
| 463 | /* Write a read array command */ |
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| 464 | *(vu16 *)FMI_Bank = 0xFF; |
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| 465 | |||
| 466 | if (Time_Out == TIMEOUT) |
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| 467 | { |
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| 468 | return FMI_TIME_OUT_ERROR; |
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| 469 | } |
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| 470 | else |
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| 471 | { |
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| 472 | return FMI_NO_TIME_OUT_ERROR; |
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| 473 | } |
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| 474 | } |
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| 475 | |||
| 196 | killagreg | 476 | /******************************************************************************* |
| 477 | * Function Name : FMI_ReadRSIGData |
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| 478 | * Description : Read the Electronic Signature stored in the user configuration |
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| 479 | * sector of Bank 1. |
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| 480 | * Input : FMI_LSB_RSIGAddress: specifies the low byte of the address |
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| 481 | * to select the register. |
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| 482 | * This parameter can be one of the following values: |
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| 483 | * - FMI_ReadRSIGData_0. |
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| 484 | * - FMI_ReadRSIGData_1. |
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| 485 | * - FMI_ReadRSIGData_2. |
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| 486 | * - FMI_ReadRSIGData_3. |
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| 487 | * - FMI_ReadRSIGData_4. |
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| 488 | * - FMI_ReadRSIGData_5. |
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| 489 | * - FMI_ReadRSIGData_6. |
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| 490 | * - FMI_ReadRSIGData_7. |
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| 491 | * |
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| 492 | * Output : None |
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| 493 | * Return : The needed RSIG data. |
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| 494 | *******************************************************************************/ |
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| 1 | ingob | 495 | |
| 196 | killagreg | 496 | u32 FMI_ReadRSIGData(u8 FMI_LSB_RSIGAddress) |
| 497 | { |
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| 498 | u32 RSIG_Data = 0x0; |
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| 499 | |||
| 500 | /*Write a read RSIG command to any word address in Bank1*/ |
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| 501 | *(vu16 *)(FMI_BANK_1) = 0x90; |
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| 502 | |||
| 503 | /*Read any RSIG register from any address in Bank1*/ |
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| 504 | RSIG_Data = (*(vu32*)(FMI_BANK_1 + (FMI_LSB_RSIGAddress<<2))); |
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| 505 | |||
| 506 | /*write a Read Array command (FFh) to any word address in Bank 1 to*/ |
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| 507 | /*return it to Read Array mode.*/ |
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| 508 | *(vu16 *)FMI_BANK_1 = 0xFF; |
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| 509 | |||
| 510 | return RSIG_Data; |
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| 511 | } |
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| 512 | |||
| 513 | /******************* (C) COPYRIGHT 2008 STMicroelectronics *****END OF FILE****/ |