1 | /** |
---|
2 | * @file |
---|
3 | * |
---|
4 | * @ingroup lpc32xx_emc |
---|
5 | * |
---|
6 | * @brief EMC support API. |
---|
7 | */ |
---|
8 | |
---|
9 | /* |
---|
10 | * Copyright (c) 2010 |
---|
11 | * embedded brains GmbH |
---|
12 | * Obere Lagerstr. 30 |
---|
13 | * D-82178 Puchheim |
---|
14 | * Germany |
---|
15 | * <rtems@embedded-brains.de> |
---|
16 | * |
---|
17 | * The license and distribution terms for this file may be |
---|
18 | * found in the file LICENSE in this distribution or at |
---|
19 | * http://www.rtems.com/license/LICENSE. |
---|
20 | */ |
---|
21 | |
---|
22 | #ifndef LIBBSP_ARM_LPC32XX_EMC_H |
---|
23 | #define LIBBSP_ARM_LPC32XX_EMC_H |
---|
24 | |
---|
25 | #include <rtems.h> |
---|
26 | |
---|
27 | #include <bsp/lpc32xx.h> |
---|
28 | |
---|
29 | #ifdef __cplusplus |
---|
30 | extern "C" { |
---|
31 | #endif /* __cplusplus */ |
---|
32 | |
---|
33 | /** |
---|
34 | * @defgroup lpc32xx_emc EMC Support |
---|
35 | * |
---|
36 | * @ingroup lpc32xx |
---|
37 | * |
---|
38 | * @brief EMC Support |
---|
39 | * |
---|
40 | * @{ |
---|
41 | */ |
---|
42 | |
---|
43 | |
---|
44 | /** |
---|
45 | * @name SDRAM Clock Control Register (SDRAMCLK_CTRL) |
---|
46 | * |
---|
47 | * @{ |
---|
48 | */ |
---|
49 | |
---|
50 | #define SDRAMCLK_CLOCKS_DIS BSP_BIT32(0) |
---|
51 | #define SDRAMCLK_DDR_MODE BSP_BIT32(1) |
---|
52 | #define SDRAMCLK_DDR_DQSIN_DELAY(val) BSP_FLD32(val, 2, 6) |
---|
53 | #define SDRAMCLK_RTC_TICK_EN BSP_BIT32(7) |
---|
54 | #define SDRAMCLK_SW_DDR_CAL BSP_BIT32(8) |
---|
55 | #define SDRAMCLK_CAL_DELAY BSP_BIT32(9) |
---|
56 | #define SDRAMCLK_SENSITIVITY_FACTOR(val) BSP_FLD32(val, 10, 12) |
---|
57 | #define SDRAMCLK_DCA_STATUS BSP_BIT32(13) |
---|
58 | #define SDRAMCLK_COMMAND_DELAY(val) BSP_FLD32(val, 14, 18) |
---|
59 | #define SDRAMCLK_SW_DDR_RESET BSP_BIT32(19) |
---|
60 | #define SDRAMCLK_PIN_1_FAST BSP_BIT32(20) |
---|
61 | #define SDRAMCLK_PIN_2_FAST BSP_BIT32(21) |
---|
62 | #define SDRAMCLK_PIN_3_FAST BSP_BIT32(22) |
---|
63 | |
---|
64 | /** @} */ |
---|
65 | |
---|
66 | /** |
---|
67 | * @name EMC Control Register (EMCControl) |
---|
68 | * |
---|
69 | * @{ |
---|
70 | */ |
---|
71 | |
---|
72 | #define EMC_CTRL_EN BSP_BIT32(0) |
---|
73 | #define EMC_CTRL_LOW_POWER BSP_BIT32(2) |
---|
74 | |
---|
75 | /** @} */ |
---|
76 | |
---|
77 | /** |
---|
78 | * @name EMC Dynamic Memory Control Register (EMCDynamicControl) |
---|
79 | * |
---|
80 | * @{ |
---|
81 | */ |
---|
82 | |
---|
83 | #define EMC_DYN_CTRL_CE BSP_BIT32(0) |
---|
84 | #define EMC_DYN_CTRL_CS BSP_BIT32(1) |
---|
85 | #define EMC_DYN_CTRL_SR BSP_BIT32(2) |
---|
86 | #define EMC_DYN_CTRL_SRMCC BSP_BIT32(3) |
---|
87 | #define EMC_DYN_CTRL_IMCC BSP_BIT32(4) |
---|
88 | #define EMC_DYN_CTRL_MCC BSP_BIT32(5) |
---|
89 | #define EMC_DYN_CTRL_I_MASK BSP_MSK32(7, 8) |
---|
90 | #define EMC_DYN_CTRL_I_NORMAL BSP_FLD32(0x0, 7, 8) |
---|
91 | #define EMC_DYN_CTRL_I_MODE BSP_FLD32(0x1, 7, 8) |
---|
92 | #define EMC_DYN_CTRL_I_PALL BSP_FLD32(0x2, 7, 8) |
---|
93 | #define EMC_DYN_CTRL_I_NOP BSP_FLD32(0x3, 7, 8) |
---|
94 | #define EMC_DYN_CTRL_DP BSP_BIT32(9) |
---|
95 | |
---|
96 | /** @} */ |
---|
97 | |
---|
98 | /** |
---|
99 | * @name EMC Dynamic Memory Read Configuration Register (EMCDynamicReadConfig) |
---|
100 | * |
---|
101 | * @{ |
---|
102 | */ |
---|
103 | |
---|
104 | #define EMC_DYN_READ_CONFIG_SDR_STRAT(val) BSP_FLD32(val, 0, 1) |
---|
105 | #define EMC_DYN_READ_CONFIG_SDR_POL_POS BSP_BIT32(4) |
---|
106 | #define EMC_DYN_READ_CONFIG_DDR_STRAT(val) BSP_FLD32(val, 8, 9) |
---|
107 | #define EMC_DYN_READ_CONFIG_DDR_POL_POS BSP_BIT32(12) |
---|
108 | |
---|
109 | /** @} */ |
---|
110 | |
---|
111 | /** |
---|
112 | * @name EMC Dynamic Memory Configuration N Register (EMCDynamicConfigN) |
---|
113 | * |
---|
114 | * @{ |
---|
115 | */ |
---|
116 | |
---|
117 | #define EMC_DYN_CFG_MD(val) BSP_FLD32(val, 0, 2) |
---|
118 | #define EMC_DYN_CFG_AM(val) BSP_FLD32(val, 7, 14) |
---|
119 | #define EMC_DYN_CFG_P(val) BSP_BIT32(20) |
---|
120 | |
---|
121 | /** @} */ |
---|
122 | |
---|
123 | /** |
---|
124 | * @name EMC Dynamic Memory RAS and CAS Delay N Register (EMCDynamicRasCasN) |
---|
125 | * |
---|
126 | * @{ |
---|
127 | */ |
---|
128 | |
---|
129 | #define EMC_DYN_RAS(val) BSP_FLD32(val, 0, 3) |
---|
130 | #define EMC_DYN_CAS(val) BSP_FLD32(val, 7, 10) |
---|
131 | |
---|
132 | /** @} */ |
---|
133 | |
---|
134 | /** |
---|
135 | * @name EMC AHB Control Register (EMCAHBControl) |
---|
136 | * |
---|
137 | * @{ |
---|
138 | */ |
---|
139 | |
---|
140 | #define EMC_AHB_PORT_BUFF_EN BSP_BIT32(0) |
---|
141 | |
---|
142 | /** @} */ |
---|
143 | |
---|
144 | /** |
---|
145 | * @name EMC AHB Timeout Register (EMCAHBTimeOut) |
---|
146 | * |
---|
147 | * @{ |
---|
148 | */ |
---|
149 | |
---|
150 | #define EMC_AHB_TIMEOUT(val) BSP_FLD32(val, 0, 9) |
---|
151 | |
---|
152 | /** @} */ |
---|
153 | |
---|
154 | /** |
---|
155 | * @name SDRAM Mode and Extended Mode Registers |
---|
156 | * |
---|
157 | * @{ |
---|
158 | */ |
---|
159 | |
---|
160 | #define SDRAM_ADDR_ROW_16MB(val) ((uint32_t) (val) << 10) |
---|
161 | #define SDRAM_ADDR_ROW_32MB(val) ((uint32_t) (val) << 11) |
---|
162 | #define SDRAM_ADDR_ROW_64MB(val) ((uint32_t) (val) << 11) |
---|
163 | |
---|
164 | #define SDRAM_ADDR_BANK_16MB(ba1, ba0) \ |
---|
165 | (((uint32_t) (ba1) << 23) | ((uint32_t) (ba0) << 22)) |
---|
166 | #define SDRAM_ADDR_BANK_32MB(ba1, ba0) \ |
---|
167 | (((uint32_t) (ba1) << 23) | ((uint32_t) (ba0) << 24)) |
---|
168 | #define SDRAM_ADDR_BANK_64MB(ba1, ba0) \ |
---|
169 | (((uint32_t) (ba1) << 25) | ((uint32_t) (ba0) << 24)) |
---|
170 | |
---|
171 | #define SDRAM_MODE_16MB(mode) \ |
---|
172 | (SDRAM_ADDR_BANK_16MB(0, 0) | SDRAM_ADDR_ROW_16MB(mode)) |
---|
173 | #define SDRAM_MODE_32MB(mode) \ |
---|
174 | (SDRAM_ADDR_BANK_32MB(0, 0) | SDRAM_ADDR_ROW_32MB(mode)) |
---|
175 | #define SDRAM_MODE_64MB(mode) \ |
---|
176 | (SDRAM_ADDR_BANK_64MB(0, 0) | SDRAM_ADDR_ROW_64MB(mode)) |
---|
177 | |
---|
178 | #define SDRAM_EXTMODE_16MB(mode) \ |
---|
179 | (SDRAM_ADDR_BANK_16MB(1, 0) | SDRAM_ADDR_ROW_16MB(mode)) |
---|
180 | #define SDRAM_EXTMODE_32MB(mode) \ |
---|
181 | (SDRAM_ADDR_BANK_32MB(1, 0) | SDRAM_ADDR_ROW_32MB(mode)) |
---|
182 | #define SDRAM_EXTMODE_64MB(mode) \ |
---|
183 | (SDRAM_ADDR_BANK_64MB(1, 0) | SDRAM_ADDR_ROW_64MB(mode)) |
---|
184 | |
---|
185 | #define SDRAM_MODE_BURST_LENGTH(val) BSP_FLD32(val, 0, 2) |
---|
186 | #define SDRAM_MODE_BURST_INTERLEAVE BSP_BIT32(3) |
---|
187 | #define SDRAM_MODE_CAS(val) BSP_FLD32(val, 4, 6) |
---|
188 | #define SDRAM_MODE_TEST_MODE(val) BSP_FLD32(val, 7, 8) |
---|
189 | #define SDRAM_MODE_WRITE_BURST_SINGLE_BIT BSP_BIT32(9) |
---|
190 | |
---|
191 | #define SDRAM_EXTMODE_PASR(val) BSP_FLD32(val, 0, 2) |
---|
192 | #define SDRAM_EXTMODE_DRIVER_STRENGTH(val) BSP_FLD32(val, 5, 6) |
---|
193 | |
---|
194 | /** @} */ |
---|
195 | |
---|
196 | typedef struct { |
---|
197 | uint32_t size; |
---|
198 | uint32_t config; |
---|
199 | uint32_t rascas; |
---|
200 | uint32_t mode; |
---|
201 | uint32_t extmode; |
---|
202 | } lpc32xx_emc_dynamic_chip_config; |
---|
203 | |
---|
204 | typedef struct { |
---|
205 | uint32_t sdramclk_ctrl; |
---|
206 | uint32_t nop_time_in_us; |
---|
207 | uint32_t control; |
---|
208 | uint32_t refresh; |
---|
209 | uint32_t readconfig; |
---|
210 | uint32_t trp; |
---|
211 | uint32_t tras; |
---|
212 | uint32_t tsrex; |
---|
213 | uint32_t twr; |
---|
214 | uint32_t trc; |
---|
215 | uint32_t trfc; |
---|
216 | uint32_t txsr; |
---|
217 | uint32_t trrd; |
---|
218 | uint32_t tmrd; |
---|
219 | uint32_t tcdlr; |
---|
220 | lpc32xx_emc_dynamic_chip_config chip [EMC_DYN_CHIP_COUNT]; |
---|
221 | } lpc32xx_emc_dynamic_config; |
---|
222 | |
---|
223 | void lpc32xx_emc_init(const lpc32xx_emc_dynamic_config *dyn_cfg); |
---|
224 | |
---|
225 | /** @} */ |
---|
226 | |
---|
227 | #ifdef __cplusplus |
---|
228 | } |
---|
229 | #endif /* __cplusplus */ |
---|
230 | |
---|
231 | #endif /* LIBBSP_ARM_LPC32XX_EMC_H */ |
---|