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rename CFG_ macros to CONFIG_SYS
[people/ms/u-boot.git] / board / atmel / at91cap9adk / at91cap9adk.c
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1/*
2 * (C) Copyright 2007-2008
567fb852 3 * Stelian Pop <stelian.pop@leadtechdesign.com>
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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>
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26#include <asm/arch/at91cap9.h>
27#include <asm/arch/at91cap9_matrix.h>
4f6c8101 28#include <asm/arch/at91sam9_smc.h>
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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>
3ae071e4 33#include <asm/arch/hardware.h>
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34#include <lcd.h>
35#include <atmel_lcdc.h>
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36#if defined(CONFIG_RESET_PHY_R) && defined(CONFIG_MACB)
37#include <net.h>
38#endif
3ae071e4 39#include <netdev.h>
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40
41#define MP_BLOCK_3_BASE 0xFDF00000
42
43DECLARE_GLOBAL_DATA_PTR;
44
45/* ------------------------------------------------------------------------- */
46/*
47 * Miscelaneous platform dependent initialisations
48 */
49
50static void at91cap9_serial_hw_init(void)
51{
52#ifdef CONFIG_USART0
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53 at91_set_A_periph(AT91_PIN_PA22, 1); /* TXD0 */
54 at91_set_A_periph(AT91_PIN_PA23, 0); /* RXD0 */
55 at91_sys_write(AT91_PMC_PCER, 1 << AT91_ID_US0);
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56#endif
57
58#ifdef CONFIG_USART1
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59 at91_set_A_periph(AT91_PIN_PD0, 1); /* TXD1 */
60 at91_set_A_periph(AT91_PIN_PD1, 0); /* RXD1 */
61 at91_sys_write(AT91_PMC_PCER, 1 << AT91_ID_US1);
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62#endif
63
64#ifdef CONFIG_USART2
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65 at91_set_A_periph(AT91_PIN_PD2, 1); /* TXD2 */
66 at91_set_A_periph(AT91_PIN_PD3, 0); /* RXD2 */
67 at91_sys_write(AT91_PMC_PCER, 1 << AT91_ID_US2);
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68#endif
69
70#ifdef CONFIG_USART3 /* DBGU */
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71 at91_set_A_periph(AT91_PIN_PC30, 0); /* DRXD */
72 at91_set_A_periph(AT91_PIN_PC31, 1); /* DTXD */
73 at91_sys_write(AT91_PMC_PCER, 1 << AT91_ID_SYS);
6afcabf1 74#endif
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75}
76
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77static void at91cap9_slowclock_hw_init(void)
78{
79 /*
80 * On AT91CAP9 revC CPUs, the slow clock can be based on an
81 * internal impreciseRC oscillator or an external 32kHz oscillator.
82 * Switch to the latter.
83 */
84#define ARCH_ID_AT91CAP9_REVB 0x399
85#define ARCH_ID_AT91CAP9_REVC 0x601
86 if (at91_sys_read(AT91_PMC_VER) == ARCH_ID_AT91CAP9_REVC) {
87 unsigned i, tmp = at91_sys_read(AT91_SCKCR);
88 if ((tmp & AT91CAP9_SCKCR_OSCSEL) == AT91CAP9_SCKCR_OSCSEL_RC) {
89 extern void timer_init(void);
90 timer_init();
91 tmp |= AT91CAP9_SCKCR_OSC32EN;
92 at91_sys_write(AT91_SCKCR, tmp);
93 for (i = 0; i < 1200; i++)
94 udelay(1000);
95 tmp |= AT91CAP9_SCKCR_OSCSEL_32;
96 at91_sys_write(AT91_SCKCR, tmp);
97 udelay(200);
98 tmp &= ~AT91CAP9_SCKCR_RCEN;
99 at91_sys_write(AT91_SCKCR, tmp);
100 }
101 }
102}
103
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104static void at91cap9_nor_hw_init(void)
105{
983c1db0 106 unsigned long csa;
6afcabf1 107
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108 /* Ensure EBI supply is 3.3V */
109 csa = at91_sys_read(AT91_MATRIX_EBICSA);
110 at91_sys_write(AT91_MATRIX_EBICSA,
111 csa | AT91_MATRIX_EBI_VDDIOMSEL_3_3V);
6afcabf1 112 /* Configure SMC CS0 for parallel flash */
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113 at91_sys_write(AT91_SMC_SETUP(0),
114 AT91_SMC_NWESETUP_(4) | AT91_SMC_NCS_WRSETUP_(2) |
115 AT91_SMC_NRDSETUP_(4) | AT91_SMC_NCS_RDSETUP_(2));
116 at91_sys_write(AT91_SMC_PULSE(0),
117 AT91_SMC_NWEPULSE_(8) | AT91_SMC_NCS_WRPULSE_(10) |
118 AT91_SMC_NRDPULSE_(8) | AT91_SMC_NCS_RDPULSE_(10));
119 at91_sys_write(AT91_SMC_CYCLE(0),
120 AT91_SMC_NWECYCLE_(16) | AT91_SMC_NRDCYCLE_(16));
121 at91_sys_write(AT91_SMC_MODE(0),
122 AT91_SMC_READMODE | AT91_SMC_WRITEMODE |
123 AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE |
124 AT91_SMC_DBW_16 | AT91_SMC_TDF_(1));
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125}
126
127#ifdef CONFIG_CMD_NAND
128static void at91cap9_nand_hw_init(void)
129{
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130 unsigned long csa;
131
6afcabf1 132 /* Enable CS3 */
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133 csa = at91_sys_read(AT91_MATRIX_EBICSA);
134 at91_sys_write(AT91_MATRIX_EBICSA,
135 csa | AT91_MATRIX_EBI_CS3A_SMC_SMARTMEDIA |
136 AT91_MATRIX_EBI_VDDIOMSEL_3_3V);
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137
138 /* Configure SMC CS3 for NAND/SmartMedia */
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139 at91_sys_write(AT91_SMC_SETUP(3),
140 AT91_SMC_NWESETUP_(2) | AT91_SMC_NCS_WRSETUP_(1) |
141 AT91_SMC_NRDSETUP_(2) | AT91_SMC_NCS_RDSETUP_(1));
142 at91_sys_write(AT91_SMC_PULSE(3),
143 AT91_SMC_NWEPULSE_(4) | AT91_SMC_NCS_WRPULSE_(6) |
144 AT91_SMC_NRDPULSE_(4) | AT91_SMC_NCS_RDPULSE_(6));
145 at91_sys_write(AT91_SMC_CYCLE(3),
146 AT91_SMC_NWECYCLE_(8) | AT91_SMC_NRDCYCLE_(8));
147 at91_sys_write(AT91_SMC_MODE(3),
148 AT91_SMC_READMODE | AT91_SMC_WRITEMODE |
149 AT91_SMC_EXNWMODE_DISABLE |
6d0f6bcf 150#ifdef CONFIG_SYS_NAND_DBW_16
1c90df3e 151 AT91_SMC_DBW_16 |
6d0f6bcf 152#else /* CONFIG_SYS_NAND_DBW_8 */
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153 AT91_SMC_DBW_8 |
154#endif
155 AT91_SMC_TDF_(1));
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156
157 at91_sys_write(AT91_PMC_PCER, 1 << AT91CAP9_ID_PIOABCD);
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158
159 /* RDY/BSY is not connected */
160
161 /* Enable NandFlash */
983c1db0 162 at91_set_gpio_output(AT91_PIN_PD15, 1);
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163}
164#endif
165
166#ifdef CONFIG_HAS_DATAFLASH
167static void at91cap9_spi_hw_init(void)
168{
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169 at91_set_B_periph(AT91_PIN_PA5, 0); /* SPI0_NPCS0 */
170
171 at91_set_B_periph(AT91_PIN_PA0, 0); /* SPI0_MISO */
172 at91_set_B_periph(AT91_PIN_PA1, 0); /* SPI0_MOSI */
173 at91_set_B_periph(AT91_PIN_PA2, 0); /* SPI0_SPCK */
174
175 /* Enable clock */
176 at91_sys_write(AT91_PMC_PCER, 1 << AT91CAP9_ID_SPI0);
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177}
178#endif
179
180#ifdef CONFIG_MACB
181static void at91cap9_macb_hw_init(void)
182{
6afcabf1 183 /* Enable clock */
983c1db0 184 at91_sys_write(AT91_PMC_PCER, 1 << AT91CAP9_ID_EMAC);
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185
186 /*
187 * Disable pull-up on:
188 * RXDV (PB22) => PHY normal mode (not Test mode)
189 * ERX0 (PB25) => PHY ADDR0
190 * ERX1 (PB26) => PHY ADDR1 => PHYADDR = 0x0
191 *
192 * PHY has internal pull-down
193 */
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194 writel(pin_to_mask(AT91_PIN_PB22) |
195 pin_to_mask(AT91_PIN_PB25) |
196 pin_to_mask(AT91_PIN_PB26),
197 pin_to_controller(AT91_PIN_PA0) + PIO_PUDR);
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198
199 /* Need to reset PHY -> 500ms reset */
983c1db0 200 at91_sys_write(AT91_RSTC_MR, AT91_RSTC_KEY |
19bd6884 201 (AT91_RSTC_ERSTL & (0x0D << 8)) |
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202 AT91_RSTC_URSTEN);
203
204 at91_sys_write(AT91_RSTC_CR, AT91_RSTC_KEY | AT91_RSTC_EXTRST);
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205
206 /* Wait for end hardware reset */
983c1db0 207 while (!(at91_sys_read(AT91_RSTC_SR) & AT91_RSTC_NRSTL));
6afcabf1 208
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209 /* Restore NRST value */
210 at91_sys_write(AT91_RSTC_MR, AT91_RSTC_KEY |
211 (AT91_RSTC_ERSTL & (0x0 << 8)) |
212 AT91_RSTC_URSTEN);
213
6afcabf1 214 /* Re-enable pull-up */
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215 writel(pin_to_mask(AT91_PIN_PB22) |
216 pin_to_mask(AT91_PIN_PB25) |
217 pin_to_mask(AT91_PIN_PB26),
218 pin_to_controller(AT91_PIN_PA0) + PIO_PUER);
219
220 at91_set_A_periph(AT91_PIN_PB21, 0); /* ETXCK_EREFCK */
221 at91_set_A_periph(AT91_PIN_PB22, 0); /* ERXDV */
222 at91_set_A_periph(AT91_PIN_PB25, 0); /* ERX0 */
223 at91_set_A_periph(AT91_PIN_PB26, 0); /* ERX1 */
224 at91_set_A_periph(AT91_PIN_PB27, 0); /* ERXER */
225 at91_set_A_periph(AT91_PIN_PB28, 0); /* ETXEN */
226 at91_set_A_periph(AT91_PIN_PB23, 0); /* ETX0 */
227 at91_set_A_periph(AT91_PIN_PB24, 0); /* ETX1 */
228 at91_set_A_periph(AT91_PIN_PB30, 0); /* EMDIO */
229 at91_set_A_periph(AT91_PIN_PB29, 0); /* EMDC */
230
231#ifndef CONFIG_RMII
232 at91_set_B_periph(AT91_PIN_PC25, 0); /* ECRS */
233 at91_set_B_periph(AT91_PIN_PC26, 0); /* ECOL */
234 at91_set_B_periph(AT91_PIN_PC22, 0); /* ERX2 */
235 at91_set_B_periph(AT91_PIN_PC23, 0); /* ERX3 */
236 at91_set_B_periph(AT91_PIN_PC27, 0); /* ERXCK */
237 at91_set_B_periph(AT91_PIN_PC20, 0); /* ETX2 */
238 at91_set_B_periph(AT91_PIN_PC21, 0); /* ETX3 */
239 at91_set_B_periph(AT91_PIN_PC24, 0); /* ETXER */
6afcabf1 240#endif
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241 /* Unlock EMAC, 3 0 2 1 sequence */
242#define MP_MAC_KEY0 0x5969cb2a
243#define MP_MAC_KEY1 0xb4a1872e
244#define MP_MAC_KEY2 0x05683fbc
245#define MP_MAC_KEY3 0x3634fba4
246#define UNLOCK_MAC 0x00000008
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247 writel(MP_MAC_KEY3, MP_BLOCK_3_BASE + 0x3c);
248 writel(MP_MAC_KEY0, MP_BLOCK_3_BASE + 0x30);
249 writel(MP_MAC_KEY2, MP_BLOCK_3_BASE + 0x38);
250 writel(MP_MAC_KEY1, MP_BLOCK_3_BASE + 0x34);
251 writel(UNLOCK_MAC, MP_BLOCK_3_BASE + 0x40);
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252}
253#endif
254
255#ifdef CONFIG_USB_OHCI_NEW
256static void at91cap9_uhp_hw_init(void)
257{
258 /* Unlock USB OHCI, 3 2 0 1 sequence */
259#define MP_OHCI_KEY0 0x896c11ca
260#define MP_OHCI_KEY1 0x68ebca21
261#define MP_OHCI_KEY2 0x4823efbc
262#define MP_OHCI_KEY3 0x8651aae4
263#define UNLOCK_OHCI 0x00000010
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264 writel(MP_OHCI_KEY3, MP_BLOCK_3_BASE + 0x3c);
265 writel(MP_OHCI_KEY2, MP_BLOCK_3_BASE + 0x38);
266 writel(MP_OHCI_KEY0, MP_BLOCK_3_BASE + 0x30);
267 writel(MP_OHCI_KEY1, MP_BLOCK_3_BASE + 0x34);
268 writel(UNLOCK_OHCI, MP_BLOCK_3_BASE + 0x40);
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269}
270#endif
271
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272#ifdef CONFIG_LCD
273vidinfo_t panel_info = {
274 vl_col: 240,
275 vl_row: 320,
276 vl_clk: 4965000,
277 vl_sync: ATMEL_LCDC_INVLINE_INVERTED |
278 ATMEL_LCDC_INVFRAME_INVERTED,
279 vl_bpix: 3,
280 vl_tft: 1,
281 vl_hsync_len: 5,
282 vl_left_margin: 1,
283 vl_right_margin:33,
284 vl_vsync_len: 1,
285 vl_upper_margin:1,
286 vl_lower_margin:0,
287 mmio: AT91CAP9_LCDC_BASE,
288};
289
290void lcd_enable(void)
291{
292 at91_set_gpio_value(AT91_PIN_PC0, 0); /* power up */
293}
294
295void lcd_disable(void)
296{
297 at91_set_gpio_value(AT91_PIN_PC0, 1); /* power down */
298}
299
300static void at91cap9_lcd_hw_init(void)
301{
302 at91_set_A_periph(AT91_PIN_PC1, 0); /* LCDHSYNC */
303 at91_set_A_periph(AT91_PIN_PC2, 0); /* LCDDOTCK */
304 at91_set_A_periph(AT91_PIN_PC3, 0); /* LCDDEN */
305 at91_set_B_periph(AT91_PIN_PB9, 0); /* LCDCC */
306 at91_set_A_periph(AT91_PIN_PC6, 0); /* LCDD2 */
307 at91_set_A_periph(AT91_PIN_PC7, 0); /* LCDD3 */
308 at91_set_A_periph(AT91_PIN_PC8, 0); /* LCDD4 */
309 at91_set_A_periph(AT91_PIN_PC9, 0); /* LCDD5 */
310 at91_set_A_periph(AT91_PIN_PC10, 0); /* LCDD6 */
311 at91_set_A_periph(AT91_PIN_PC11, 0); /* LCDD7 */
312 at91_set_A_periph(AT91_PIN_PC14, 0); /* LCDD10 */
313 at91_set_A_periph(AT91_PIN_PC15, 0); /* LCDD11 */
314 at91_set_A_periph(AT91_PIN_PC16, 0); /* LCDD12 */
315 at91_set_A_periph(AT91_PIN_PC17, 0); /* LCDD13 */
316 at91_set_A_periph(AT91_PIN_PC18, 0); /* LCDD14 */
317 at91_set_A_periph(AT91_PIN_PC19, 0); /* LCDD15 */
318 at91_set_A_periph(AT91_PIN_PC22, 0); /* LCDD18 */
319 at91_set_A_periph(AT91_PIN_PC23, 0); /* LCDD19 */
320 at91_set_A_periph(AT91_PIN_PC24, 0); /* LCDD20 */
321 at91_set_A_periph(AT91_PIN_PC25, 0); /* LCDD21 */
322 at91_set_A_periph(AT91_PIN_PC26, 0); /* LCDD22 */
323 at91_set_A_periph(AT91_PIN_PC27, 0); /* LCDD23 */
324
325 at91_sys_write(AT91_PMC_PCER, 1 << AT91CAP9_ID_LCDC);
326
327 gd->fb_base = 0;
328}
329#endif
330
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331int board_init(void)
332{
333 /* Enable Ctrlc */
334 console_init_f();
335
336 /* arch number of AT91CAP9ADK-Board */
337 gd->bd->bi_arch_number = MACH_TYPE_AT91CAP9ADK;
338 /* adress of boot parameters */
339 gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
340
341 at91cap9_serial_hw_init();
19883aed 342 at91cap9_slowclock_hw_init();
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343 at91cap9_nor_hw_init();
344#ifdef CONFIG_CMD_NAND
345 at91cap9_nand_hw_init();
346#endif
347#ifdef CONFIG_HAS_DATAFLASH
348 at91cap9_spi_hw_init();
349#endif
350#ifdef CONFIG_MACB
351 at91cap9_macb_hw_init();
352#endif
353#ifdef CONFIG_USB_OHCI_NEW
354 at91cap9_uhp_hw_init();
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355#endif
356#ifdef CONFIG_LCD
357 at91cap9_lcd_hw_init();
6afcabf1 358#endif
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359 return 0;
360}
361
362int dram_init(void)
363{
364 gd->bd->bi_dram[0].start = PHYS_SDRAM;
365 gd->bd->bi_dram[0].size = PHYS_SDRAM_SIZE;
366 return 0;
367}
368
369#ifdef CONFIG_RESET_PHY_R
370void reset_phy(void)
371{
372#ifdef CONFIG_MACB
373 /*
374 * Initialize ethernet HW addr prior to starting Linux,
375 * needed for nfsroot
376 */
377 eth_init(gd->bd);
378#endif
379}
380#endif
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381
382int board_eth_init(bd_t *bis)
383{
384 int rc = 0;
385#ifdef CONFIG_MACB
386 rc = macb_eth_initialize(0, (void *)AT91_BASE_EMAC, 0x00);
387#endif
388 return rc;
389}