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0176d43e SP |
1 | /* |
2 | * (C) Copyright 2007-2008 | |
3 | * Stelian Pop <stelian.pop <at> leadtechdesign.com> | |
4 | * Lead Tech Design <www.leadtechdesign.com> | |
5 | * | |
6 | * See file CREDITS for list of people who contributed to this | |
7 | * project. | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or | |
10 | * modify it under the terms of the GNU General Public License as | |
11 | * published by the Free Software Foundation; either version 2 of | |
12 | * the License, or (at your option) any later version. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program; if not, write to the Free Software | |
21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
22 | * MA 02111-1307 USA | |
23 | */ | |
24 | ||
25 | #include <common.h> | |
26 | #include <asm/arch/at91sam9260.h> | |
27 | #include <asm/arch/at91sam9260_matrix.h> | |
9606b3c8 | 28 | #include <asm/arch/at91sam9_smc.h> |
0176d43e SP |
29 | #include <asm/arch/at91_pmc.h> |
30 | #include <asm/arch/at91_rstc.h> | |
31 | #include <asm/arch/gpio.h> | |
32 | #include <asm/arch/io.h> | |
33 | #if defined(CONFIG_RESET_PHY_R) && defined(CONFIG_MACB) | |
34 | #include <net.h> | |
35 | #endif | |
36 | ||
37 | DECLARE_GLOBAL_DATA_PTR; | |
38 | ||
39 | /* ------------------------------------------------------------------------- */ | |
40 | /* | |
41 | * Miscelaneous platform dependent initialisations | |
42 | */ | |
43 | ||
44 | static void at91sam9260ek_serial_hw_init(void) | |
45 | { | |
46 | #ifdef CONFIG_USART0 | |
47 | at91_set_A_periph(AT91_PIN_PB4, 1); /* TXD0 */ | |
48 | at91_set_A_periph(AT91_PIN_PB5, 0); /* RXD0 */ | |
49 | at91_sys_write(AT91_PMC_PCER, 1 << AT91_ID_US0); | |
50 | #endif | |
51 | ||
52 | #ifdef CONFIG_USART1 | |
53 | at91_set_A_periph(AT91_PIN_PB6, 1); /* TXD1 */ | |
54 | at91_set_A_periph(AT91_PIN_PB7, 0); /* RXD1 */ | |
55 | at91_sys_write(AT91_PMC_PCER, 1 << AT91_ID_US1); | |
56 | #endif | |
57 | ||
58 | #ifdef CONFIG_USART2 | |
59 | at91_set_A_periph(AT91_PIN_PB8, 1); /* TXD2 */ | |
60 | at91_set_A_periph(AT91_PIN_PB9, 0); /* RXD2 */ | |
61 | at91_sys_write(AT91_PMC_PCER, 1 << AT91_ID_US2); | |
62 | #endif | |
63 | ||
64 | #ifdef CONFIG_USART3 /* DBGU */ | |
65 | at91_set_A_periph(AT91_PIN_PB14, 0); /* DRXD */ | |
66 | at91_set_A_periph(AT91_PIN_PB15, 1); /* DTXD */ | |
67 | at91_sys_write(AT91_PMC_PCER, 1 << AT91_ID_SYS); | |
68 | #endif | |
69 | } | |
70 | ||
71 | #ifdef CONFIG_CMD_NAND | |
72 | static void at91sam9260ek_nand_hw_init(void) | |
73 | { | |
74 | unsigned long csa; | |
75 | ||
76 | /* Enable CS3 */ | |
77 | csa = at91_sys_read(AT91_MATRIX_EBICSA); | |
78 | at91_sys_write(AT91_MATRIX_EBICSA, | |
79 | csa | AT91_MATRIX_CS3A_SMC_SMARTMEDIA); | |
80 | ||
81 | /* Configure SMC CS3 for NAND/SmartMedia */ | |
82 | at91_sys_write(AT91_SMC_SETUP(3), | |
83 | AT91_SMC_NWESETUP_(0) | AT91_SMC_NCS_WRSETUP_(0) | | |
84 | AT91_SMC_NRDSETUP_(0) | AT91_SMC_NCS_RDSETUP_(0)); | |
85 | at91_sys_write(AT91_SMC_PULSE(3), | |
86 | AT91_SMC_NWEPULSE_(3) | AT91_SMC_NCS_WRPULSE_(3) | | |
87 | AT91_SMC_NRDPULSE_(3) | AT91_SMC_NCS_RDPULSE_(3)); | |
88 | at91_sys_write(AT91_SMC_CYCLE(3), | |
89 | AT91_SMC_NWECYCLE_(5) | AT91_SMC_NRDCYCLE_(5)); | |
90 | at91_sys_write(AT91_SMC_MODE(3), | |
91 | AT91_SMC_READMODE | AT91_SMC_WRITEMODE | | |
92 | AT91_SMC_EXNWMODE_DISABLE | | |
93 | AT91_SMC_DBW_8 | AT91_SMC_TDF_(2)); | |
94 | ||
95 | at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9260_ID_PIOC); | |
96 | ||
97 | /* Configure RDY/BSY */ | |
98 | at91_set_gpio_input(AT91_PIN_PC13, 1); | |
99 | ||
100 | /* Enable NandFlash */ | |
101 | at91_set_gpio_output(AT91_PIN_PC14, 1); | |
102 | } | |
103 | #endif | |
104 | ||
105 | #ifdef CONFIG_HAS_DATAFLASH | |
106 | static void at91sam9260ek_spi_hw_init(void) | |
107 | { | |
108 | at91_set_A_periph(AT91_PIN_PA3, 0); /* SPI0_NPCS0 */ | |
109 | at91_set_B_periph(AT91_PIN_PC11, 0); /* SPI0_NPCS1 */ | |
110 | ||
111 | at91_set_A_periph(AT91_PIN_PA0, 0); /* SPI0_MISO */ | |
112 | at91_set_A_periph(AT91_PIN_PA1, 0); /* SPI0_MOSI */ | |
113 | at91_set_A_periph(AT91_PIN_PA2, 0); /* SPI0_SPCK */ | |
114 | ||
115 | /* Enable clock */ | |
116 | at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9260_ID_SPI0); | |
117 | } | |
118 | #endif | |
119 | ||
120 | #ifdef CONFIG_MACB | |
121 | static void at91sam9260ek_macb_hw_init(void) | |
122 | { | |
123 | /* Enable clock */ | |
124 | at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9260_ID_EMAC); | |
125 | ||
126 | /* | |
127 | * Disable pull-up on: | |
128 | * RXDV (PA17) => PHY normal mode (not Test mode) | |
129 | * ERX0 (PA14) => PHY ADDR0 | |
130 | * ERX1 (PA15) => PHY ADDR1 | |
131 | * ERX2 (PA25) => PHY ADDR2 | |
132 | * ERX3 (PA26) => PHY ADDR3 | |
133 | * ECRS (PA28) => PHY ADDR4 => PHYADDR = 0x0 | |
134 | * | |
135 | * PHY has internal pull-down | |
136 | */ | |
137 | writel(pin_to_mask(AT91_PIN_PA14) | | |
138 | pin_to_mask(AT91_PIN_PA15) | | |
139 | pin_to_mask(AT91_PIN_PA17) | | |
140 | pin_to_mask(AT91_PIN_PA25) | | |
141 | pin_to_mask(AT91_PIN_PA26) | | |
142 | pin_to_mask(AT91_PIN_PA28), | |
143 | pin_to_controller(AT91_PIN_PA0) + PIO_PUDR); | |
144 | ||
145 | /* Need to reset PHY -> 500ms reset */ | |
146 | at91_sys_write(AT91_RSTC_MR, AT91_RSTC_KEY | | |
147 | AT91_RSTC_ERSTL | (0x0D << 8) | | |
148 | AT91_RSTC_URSTEN); | |
149 | ||
150 | at91_sys_write(AT91_RSTC_CR, AT91_RSTC_KEY | AT91_RSTC_EXTRST); | |
151 | ||
152 | /* Wait for end hardware reset */ | |
153 | while (!(at91_sys_read(AT91_RSTC_SR) & AT91_RSTC_NRSTL)); | |
154 | ||
155 | /* Restore NRST value */ | |
156 | at91_sys_write(AT91_RSTC_MR, AT91_RSTC_KEY | | |
157 | AT91_RSTC_ERSTL | (0x0 << 8) | | |
158 | AT91_RSTC_URSTEN); | |
159 | ||
160 | /* Re-enable pull-up */ | |
161 | writel(pin_to_mask(AT91_PIN_PA14) | | |
162 | pin_to_mask(AT91_PIN_PA15) | | |
163 | pin_to_mask(AT91_PIN_PA17) | | |
164 | pin_to_mask(AT91_PIN_PA25) | | |
165 | pin_to_mask(AT91_PIN_PA26) | | |
166 | pin_to_mask(AT91_PIN_PA28), | |
167 | pin_to_controller(AT91_PIN_PA0) + PIO_PUER); | |
168 | ||
169 | at91_set_A_periph(AT91_PIN_PA19, 0); /* ETXCK_EREFCK */ | |
170 | at91_set_A_periph(AT91_PIN_PA17, 0); /* ERXDV */ | |
171 | at91_set_A_periph(AT91_PIN_PA14, 0); /* ERX0 */ | |
172 | at91_set_A_periph(AT91_PIN_PA15, 0); /* ERX1 */ | |
173 | at91_set_A_periph(AT91_PIN_PA18, 0); /* ERXER */ | |
174 | at91_set_A_periph(AT91_PIN_PA16, 0); /* ETXEN */ | |
175 | at91_set_A_periph(AT91_PIN_PA12, 0); /* ETX0 */ | |
176 | at91_set_A_periph(AT91_PIN_PA13, 0); /* ETX1 */ | |
177 | at91_set_A_periph(AT91_PIN_PA21, 0); /* EMDIO */ | |
178 | at91_set_A_periph(AT91_PIN_PA20, 0); /* EMDC */ | |
179 | ||
180 | #ifndef CONFIG_RMII | |
181 | at91_set_B_periph(AT91_PIN_PA28, 0); /* ECRS */ | |
182 | at91_set_B_periph(AT91_PIN_PA29, 0); /* ECOL */ | |
183 | at91_set_B_periph(AT91_PIN_PA25, 0); /* ERX2 */ | |
184 | at91_set_B_periph(AT91_PIN_PA26, 0); /* ERX3 */ | |
185 | at91_set_B_periph(AT91_PIN_PA27, 0); /* ERXCK */ | |
186 | at91_set_B_periph(AT91_PIN_PA23, 0); /* ETX2 */ | |
187 | at91_set_B_periph(AT91_PIN_PA24, 0); /* ETX3 */ | |
188 | at91_set_B_periph(AT91_PIN_PA22, 0); /* ETXER */ | |
189 | #endif | |
190 | ||
191 | } | |
192 | #endif | |
193 | ||
194 | int board_init(void) | |
195 | { | |
196 | /* Enable Ctrlc */ | |
197 | console_init_f(); | |
198 | ||
199 | /* arch number of AT91SAM9260EK-Board */ | |
200 | gd->bd->bi_arch_number = MACH_TYPE_AT91SAM9260EK; | |
201 | /* adress of boot parameters */ | |
202 | gd->bd->bi_boot_params = PHYS_SDRAM + 0x100; | |
203 | ||
204 | at91sam9260ek_serial_hw_init(); | |
205 | #ifdef CONFIG_CMD_NAND | |
206 | at91sam9260ek_nand_hw_init(); | |
207 | #endif | |
208 | #ifdef CONFIG_HAS_DATAFLASH | |
209 | at91sam9260ek_spi_hw_init(); | |
210 | #endif | |
211 | #ifdef CONFIG_MACB | |
212 | at91sam9260ek_macb_hw_init(); | |
213 | #endif | |
214 | ||
215 | return 0; | |
216 | } | |
217 | ||
218 | int dram_init(void) | |
219 | { | |
220 | gd->bd->bi_dram[0].start = PHYS_SDRAM; | |
221 | gd->bd->bi_dram[0].size = PHYS_SDRAM_SIZE; | |
222 | return 0; | |
223 | } | |
224 | ||
225 | #ifdef CONFIG_RESET_PHY_R | |
226 | void reset_phy(void) | |
227 | { | |
228 | #ifdef CONFIG_MACB | |
229 | /* | |
230 | * Initialize ethernet HW addr prior to starting Linux, | |
231 | * needed for nfsroot | |
232 | */ | |
233 | eth_init(gd->bd); | |
234 | #endif | |
235 | } | |
236 | #endif |