1 /*
2  * (C) Copyright 2007-2008
3  * Stelian Pop <stelian@popies.net>
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/io.h>
27 #include <asm/arch/at91sam9261.h>
28 #include <asm/arch/at91sam9261_matrix.h>
29 #include <asm/arch/at91sam9_smc.h>
30 #include <asm/arch/at91_common.h>
31 #include <asm/arch/at91_pmc.h>
32 #include <asm/arch/at91_rstc.h>
33 #include <asm/arch/clk.h>
34 #include <asm/arch/gpio.h>
35 #include <lcd.h>
36 #include <atmel_lcdc.h>
37 #if defined(CONFIG_RESET_PHY_R) && defined(CONFIG_DRIVER_DM9000)
38 #include <net.h>
39 #include <netdev.h>
40 #endif
41 
42 DECLARE_GLOBAL_DATA_PTR;
43 
44 /* ------------------------------------------------------------------------- */
45 /*
46  * Miscelaneous platform dependent initialisations
47  */
48 
49 #ifdef CONFIG_CMD_NAND
50 static void at91sam9261ek_nand_hw_init(void)
51 {
52 	struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC;
53 	struct at91_matrix *matrix = (struct at91_matrix *)ATMEL_BASE_MATRIX;
54 	struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
55 	unsigned long csa;
56 
57 	/* Enable CS3 */
58 	csa = readl(&matrix->ebicsa);
59 	csa |= AT91_MATRIX_CS3A_SMC_SMARTMEDIA;
60 
61 	writel(csa, &matrix->ebicsa);
62 
63 	/* Configure SMC CS3 for NAND/SmartMedia */
64 #ifdef CONFIG_AT91SAM9G10EK
65 	writel(AT91_SMC_SETUP_NWE(2) | AT91_SMC_SETUP_NCS_WR(0) |
66 		AT91_SMC_SETUP_NRD(2) | AT91_SMC_SETUP_NCS_RD(0),
67 		&smc->cs[3].setup);
68 	writel(AT91_SMC_PULSE_NWE(3) | AT91_SMC_PULSE_NCS_WR(7) |
69 		AT91_SMC_PULSE_NRD(3) | AT91_SMC_PULSE_NCS_RD(7),
70 		&smc->cs[3].pulse);
71 	writel(AT91_SMC_CYCLE_NWE(7) | AT91_SMC_CYCLE_NRD(7),
72 		&smc->cs[3].cycle);
73 #else
74 	writel(AT91_SMC_SETUP_NWE(1) | AT91_SMC_SETUP_NCS_WR(0) |
75 		AT91_SMC_SETUP_NRD(1) | AT91_SMC_SETUP_NCS_RD(0),
76 		&smc->cs[3].setup);
77 	writel(AT91_SMC_PULSE_NWE(3) | AT91_SMC_PULSE_NCS_WR(3) |
78 		AT91_SMC_PULSE_NRD(3) | AT91_SMC_PULSE_NCS_RD(3),
79 		&smc->cs[3].pulse);
80 	writel(AT91_SMC_CYCLE_NWE(5) | AT91_SMC_CYCLE_NRD(5),
81 		&smc->cs[3].cycle);
82 #endif
83 	writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE |
84 		       AT91_SMC_MODE_EXNW_DISABLE |
85 #ifdef CONFIG_SYS_NAND_DBW_16
86 		       AT91_SMC_MODE_DBW_16 |
87 #else /* CONFIG_SYS_NAND_DBW_8 */
88 		       AT91_SMC_MODE_DBW_8 |
89 #endif
90 		       AT91_SMC_MODE_TDF_CYCLE(2),
91 		       &smc->cs[3].mode);
92 
93 	writel(1 << ATMEL_ID_PIOC, &pmc->pcer);
94 
95 	/* Configure RDY/BSY */
96 	at91_set_gpio_input(CONFIG_SYS_NAND_READY_PIN, 1);
97 
98 	/* Enable NandFlash */
99 	at91_set_gpio_output(CONFIG_SYS_NAND_ENABLE_PIN, 1);
100 
101 	at91_set_A_periph(AT91_PIN_PC0, 0);	/* NANDOE */
102 	at91_set_A_periph(AT91_PIN_PC1, 0);	/* NANDWE */
103 }
104 #endif
105 
106 #ifdef CONFIG_DRIVER_DM9000
107 static void at91sam9261ek_dm9000_hw_init(void)
108 {
109 	struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC;
110 
111 	/* Configure SMC CS2 for DM9000 */
112 #ifdef CONFIG_AT91SAM9G10EK
113 	writel(AT91_SMC_SETUP_NWE(3) | AT91_SMC_SETUP_NCS_WR(0) |
114 		AT91_SMC_SETUP_NRD(3) | AT91_SMC_SETUP_NCS_RD(0),
115 		&smc->cs[2].setup);
116 	writel(AT91_SMC_PULSE_NWE(6) | AT91_SMC_PULSE_NCS_WR(8) |
117 		AT91_SMC_PULSE_NRD(6) | AT91_SMC_PULSE_NCS_RD(8),
118 		&smc->cs[2].pulse);
119 	writel(AT91_SMC_CYCLE_NWE(20) | AT91_SMC_CYCLE_NRD(20),
120 		&smc->cs[2].cycle);
121 	writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE |
122 		       AT91_SMC_MODE_EXNW_DISABLE |
123 		       AT91_SMC_MODE_BAT | AT91_SMC_MODE_DBW_16 |
124 		       AT91_SMC_MODE_TDF_CYCLE(1),
125 		       &smc->cs[2].mode);
126 #else
127 	writel(AT91_SMC_SETUP_NWE(3) | AT91_SMC_SETUP_NCS_WR(0) |
128 		AT91_SMC_SETUP_NRD(2) | AT91_SMC_SETUP_NCS_RD(0),
129 		&smc->cs[2].setup);
130 	writel(AT91_SMC_PULSE_NWE(4) | AT91_SMC_PULSE_NCS_WR(8) |
131 		AT91_SMC_PULSE_NRD(4) | AT91_SMC_PULSE_NCS_RD(8),
132 		&smc->cs[2].pulse);
133 	writel(AT91_SMC_CYCLE_NWE(16) | AT91_SMC_CYCLE_NRD(16),
134 		&smc->cs[2].cycle);
135 	writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE |
136 		       AT91_SMC_MODE_EXNW_DISABLE |
137 		       AT91_SMC_MODE_BAT | AT91_SMC_MODE_DBW_16 |
138 		       AT91_SMC_MODE_TDF_CYCLE(1),
139 		       &smc->cs[2].mode);
140 #endif
141 
142 	/* Configure Reset signal as output */
143 	at91_set_gpio_output(AT91_PIN_PC10, 0);
144 
145 	/* Configure Interrupt pin as input, no pull-up */
146 	at91_set_gpio_input(AT91_PIN_PC11, 0);
147 }
148 #endif
149 
150 #ifdef CONFIG_LCD
151 vidinfo_t panel_info = {
152 	vl_col:		240,
153 	vl_row:		320,
154 	vl_clk:		4965000,
155 	vl_sync:	ATMEL_LCDC_INVLINE_INVERTED |
156 			ATMEL_LCDC_INVFRAME_INVERTED,
157 	vl_bpix:	3,
158 	vl_tft:		1,
159 	vl_hsync_len:	5,
160 	vl_left_margin:	1,
161 	vl_right_margin:33,
162 	vl_vsync_len:	1,
163 	vl_upper_margin:1,
164 	vl_lower_margin:0,
165 	mmio:		ATMEL_BASE_LCDC,
166 };
167 
168 void lcd_enable(void)
169 {
170 	at91_set_gpio_value(AT91_PIN_PA12, 0);  /* power up */
171 }
172 
173 void lcd_disable(void)
174 {
175 	at91_set_gpio_value(AT91_PIN_PA12, 1);  /* power down */
176 }
177 
178 static void at91sam9261ek_lcd_hw_init(void)
179 {
180 	struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
181 
182 	at91_set_A_periph(AT91_PIN_PB1, 0);	/* LCDHSYNC */
183 	at91_set_A_periph(AT91_PIN_PB2, 0);	/* LCDDOTCK */
184 	at91_set_A_periph(AT91_PIN_PB3, 0);	/* LCDDEN */
185 	at91_set_A_periph(AT91_PIN_PB4, 0);	/* LCDCC */
186 	at91_set_A_periph(AT91_PIN_PB7, 0);	/* LCDD2 */
187 	at91_set_A_periph(AT91_PIN_PB8, 0);	/* LCDD3 */
188 	at91_set_A_periph(AT91_PIN_PB9, 0);	/* LCDD4 */
189 	at91_set_A_periph(AT91_PIN_PB10, 0);	/* LCDD5 */
190 	at91_set_A_periph(AT91_PIN_PB11, 0);	/* LCDD6 */
191 	at91_set_A_periph(AT91_PIN_PB12, 0);	/* LCDD7 */
192 	at91_set_A_periph(AT91_PIN_PB15, 0);	/* LCDD10 */
193 	at91_set_A_periph(AT91_PIN_PB16, 0);	/* LCDD11 */
194 	at91_set_A_periph(AT91_PIN_PB17, 0);	/* LCDD12 */
195 	at91_set_A_periph(AT91_PIN_PB18, 0);	/* LCDD13 */
196 	at91_set_A_periph(AT91_PIN_PB19, 0);	/* LCDD14 */
197 	at91_set_A_periph(AT91_PIN_PB20, 0);	/* LCDD15 */
198 	at91_set_B_periph(AT91_PIN_PB23, 0);	/* LCDD18 */
199 	at91_set_B_periph(AT91_PIN_PB24, 0);	/* LCDD19 */
200 	at91_set_B_periph(AT91_PIN_PB25, 0);	/* LCDD20 */
201 	at91_set_B_periph(AT91_PIN_PB26, 0);	/* LCDD21 */
202 	at91_set_B_periph(AT91_PIN_PB27, 0);	/* LCDD22 */
203 	at91_set_B_periph(AT91_PIN_PB28, 0);	/* LCDD23 */
204 
205 	writel(AT91_PMC_HCK1, &pmc->scer);
206 
207 	/* For 9G10EK, let U-Boot allocate the framebuffer in SDRAM */
208 #ifdef CONFIG_AT91SAM9261EK
209 	gd->fb_base = ATMEL_BASE_SRAM;
210 #endif
211 }
212 
213 #ifdef CONFIG_LCD_INFO
214 #include <nand.h>
215 #include <version.h>
216 
217 void lcd_show_board_info(void)
218 {
219 	ulong dram_size, nand_size;
220 	int i;
221 	char temp[32];
222 
223 	lcd_printf ("%s\n", U_BOOT_VERSION);
224 	lcd_printf ("(C) 2008 ATMEL Corp\n");
225 	lcd_printf ("at91support@atmel.com\n");
226 	lcd_printf ("%s CPU at %s MHz\n",
227 		ATMEL_CPU_NAME,
228 		strmhz(temp, get_cpu_clk_rate()));
229 
230 	dram_size = 0;
231 	for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++)
232 		dram_size += gd->bd->bi_dram[i].size;
233 	nand_size = 0;
234 	for (i = 0; i < CONFIG_SYS_MAX_NAND_DEVICE; i++)
235 		nand_size += nand_info[i].size;
236 	lcd_printf ("  %ld MB SDRAM, %ld MB NAND\n",
237 		dram_size >> 20,
238 		nand_size >> 20 );
239 }
240 #endif /* CONFIG_LCD_INFO */
241 #endif
242 
243 int board_init(void)
244 {
245 #ifdef CONFIG_AT91SAM9G10EK
246 	/* arch number of AT91SAM9G10EK-Board */
247 	gd->bd->bi_arch_number = MACH_TYPE_AT91SAM9G10EK;
248 #else
249 	/* arch number of AT91SAM9261EK-Board */
250 	gd->bd->bi_arch_number = MACH_TYPE_AT91SAM9261EK;
251 #endif
252 	/* adress of boot parameters */
253 	gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
254 
255 	at91_seriald_hw_init();
256 #ifdef CONFIG_CMD_NAND
257 	at91sam9261ek_nand_hw_init();
258 #endif
259 #ifdef CONFIG_HAS_DATAFLASH
260 	at91_spi0_hw_init(1 << 0);
261 #endif
262 #ifdef CONFIG_DRIVER_DM9000
263 	at91sam9261ek_dm9000_hw_init();
264 #endif
265 #ifdef CONFIG_LCD
266 	at91sam9261ek_lcd_hw_init();
267 #endif
268 	return 0;
269 }
270 
271 #ifdef CONFIG_DRIVER_DM9000
272 int board_eth_init(bd_t *bis)
273 {
274 	return dm9000_initialize(bis);
275 }
276 #endif
277 
278 int dram_init(void)
279 {
280 	gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
281 		CONFIG_SYS_SDRAM_SIZE);
282 
283 	return 0;
284 }
285 
286 #ifdef CONFIG_RESET_PHY_R
287 void reset_phy(void)
288 {
289 #ifdef CONFIG_DRIVER_DM9000
290 	/*
291 	 * Initialize ethernet HW addr prior to starting Linux,
292 	 * needed for nfsroot
293 	 */
294 	eth_init(gd->bd);
295 #endif
296 }
297 #endif
298