LPCOpen Platform for LPC18XX/43XX microcontrollers: C:/w/lpcopen_docs/software/lpc_core/lpc_chip/chip_18xx_43xx/otp_18xx_43xx.c Source File

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otp_18xx_43xx.c
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1 /*
2 * @brief LPC18xx/43xx OTP Controller driver
3 *
4 * @note
5 * Copyright(C) NXP Semiconductors, 2012
6 * All rights reserved.
7 *
8 * @par
9 * Software that is described herein is for illustrative purposes only
10 * which provides customers with programming information regarding the
11 * LPC products. This software is supplied "AS IS" without any warranties of
12 * any kind, and NXP Semiconductors and its licensor disclaim any and
13 * all warranties, express or implied, including all implied warranties of
14 * merchantability, fitness for a particular purpose and non-infringement of
15 * intellectual property rights. NXP Semiconductors assumes no responsibility
16 * or liability for the use of the software, conveys no license or rights under any
17 * patent, copyright, mask work right, or any other intellectual property rights in
18 * or to any products. NXP Semiconductors reserves the right to make changes
19 * in the software without notification. NXP Semiconductors also makes no
20 * representation or warranty that such application will be suitable for the
21 * specified use without further testing or modification.
22 *
23 * @par
24 * Permission to use, copy, modify, and distribute this software and its
25 * documentation is hereby granted, under NXP Semiconductors' and its
26 * licensor's relevant copyrights in the software, without fee, provided that it
27 * is used in conjunction with NXP Semiconductors microcontrollers. This
28 * copyright, permission, and disclaimer notice must appear in all copies of
29 * this code.
30 */
31
32 #include "chip.h"
33
34 /*****************************************************************************
35 * Private types/enumerations/variables
36 ****************************************************************************/
37
38 #define BOOTROM_BASE 0x10400100
39 #define OTP_API_TABLE_OFFSET 0x1
40
41 static unsigned long *BOOTROM_API_TABLE;
42
43 /*****************************************************************************
44 * Public types/enumerations/variables
45 ****************************************************************************/
46
47 /*****************************************************************************
48 * Private functions
49 ****************************************************************************/
50
51 static uint32_t (*Otp_ProgBootSrc)(CHIP_OTP_BOOT_SRC_T BootSrc);
52 static uint32_t (*Otp_ProgJTAGDis)(void);
53 static uint32_t (*Otp_ProgUSBID)(uint32_t ProductID, uint32_t VendorID);
54 static uint32_t (*Otp_ProgGP0)(uint32_t Data, uint32_t Mask);
55 static uint32_t (*Otp_ProgGP1)(uint32_t Data, uint32_t Mask);
56 static uint32_t (*Otp_ProgGP2)(uint32_t Data, uint32_t Mask);
57 static uint32_t (*Otp_ProgKey1)(uint8_t *key);
58 static uint32_t (*Otp_ProgKey2)(uint8_t *key);
59 static uint32_t (*Otp_GenRand)(void);
60
61 /*****************************************************************************
62 * Public functions
63 ****************************************************************************/
64
65 /* CHIP OTP Initialisation function */
66 uint32_t Chip_OTP_Init(void)
67 {
68 uint32_t (*ROM_otp_Init)(void);
69
70 BOOTROM_API_TABLE = *((unsigned long * *) BOOTROM_BASE + OTP_API_TABLE_OFFSET);
71
72 ROM_otp_Init = (uint32_t (*)(void))BOOTROM_API_TABLE[0];
73 Otp_ProgBootSrc = (uint32_t (*)(CHIP_OTP_BOOT_SRC_T BootSrc))BOOTROM_API_TABLE[1];
74 Otp_ProgJTAGDis = (uint32_t (*)(void))BOOTROM_API_TABLE[2];
75 Otp_ProgUSBID = (uint32_t (*)(uint32_t ProductID, uint32_t VendorID))BOOTROM_API_TABLE[3];
76 Otp_ProgGP0 = (uint32_t (*)(uint32_t Data, uint32_t Mask))BOOTROM_API_TABLE[8];
77 Otp_ProgGP1 = (uint32_t (*)(uint32_t Data, uint32_t Mask))BOOTROM_API_TABLE[9];
78 Otp_ProgGP2 = (uint32_t (*)(uint32_t Data, uint32_t Mask))BOOTROM_API_TABLE[10];
79 Otp_ProgKey1 = (uint32_t (*)(uint8_t *key))BOOTROM_API_TABLE[11];
80 Otp_ProgKey2 = (uint32_t (*)(uint8_t *key))BOOTROM_API_TABLE[12];
81 Otp_GenRand = (uint32_t (*)(void))BOOTROM_API_TABLE[13];
82
83 return ROM_otp_Init();
84 }
85
86 /* Program boot source in OTP Controller */
87 uint32_t Chip_OTP_ProgBootSrc(CHIP_OTP_BOOT_SRC_T BootSrc)
88 {
89 return Otp_ProgBootSrc(BootSrc);
90 }
91
92 /* Program the JTAG bit in OTP Controller */
93 uint32_t Chip_OTP_ProgJTAGDis(void)
94 {
95 return Otp_ProgJTAGDis();
96 }
97
98 /* Program USB ID in OTP Controller */
99 uint32_t Chip_OTP_ProgUSBID(uint32_t ProductID, uint32_t VendorID)
100 {
101 return Otp_ProgUSBID(ProductID, VendorID);
102 }
103
104 /* Program OTP GP Word memory */
105 uint32_t Chip_OTP_ProgGPWord(uint32_t WordNum, uint32_t Data, uint32_t Mask)
106 {
107 uint32_t status;
108
109 switch (WordNum) {
110 case 1:
111 status = Otp_ProgGP1(Data, Mask);
112 break;
113
114 case 2:
115 status = Otp_ProgGP2(Data, Mask);
116 break;
117
118 case 0:
119 default:
120 status = Otp_ProgGP0(Data, Mask);
121 break;
122 }
123
124 return status;
125 }
126
127 /* Program AES Key */
128 uint32_t Chip_OTP_ProgKey(uint32_t KeyNum, uint8_t *key)
129 {
130 uint32_t status;
131
132 if (KeyNum) {
133 status = Otp_ProgKey2(key);
134 }
135 else {
136 status = Otp_ProgKey1(key);
137 }
138 return status;
139 }
140
141 /* Generate Random Number using HW Random Number Generator */
142 uint32_t Chip_OTP_GenRand(void)
143 {
144 return Otp_GenRand();
145 }