1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * (C) Copyright 2007-2008
4 * Stelian Pop <stelian@popies.net>
5 * Lead Tech Design <www.leadtechdesign.com>
6 * Copyright (C) 2008 Ronetix Ilko Iliev (www.ronetix.at)
7 * Copyright (C) 2009 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
8 */
9
10 #include <common.h>
11 #include <linux/sizes.h>
12 #include <asm/io.h>
13 #include <asm/gpio.h>
14 #include <asm/arch/at91sam9_smc.h>
15 #include <asm/arch/at91_common.h>
16 #include <asm/arch/at91_rstc.h>
17 #include <asm/arch/at91_matrix.h>
18 #include <asm/arch/clk.h>
19 #include <asm/arch/gpio.h>
20 #if defined(CONFIG_RESET_PHY_R) && defined(CONFIG_MACB)
21 #include <net.h>
22 #endif
23 #include <netdev.h>
24 #include <asm/mach-types.h>
25
26 DECLARE_GLOBAL_DATA_PTR;
27
28 /* ------------------------------------------------------------------------- */
29 /*
30 * Miscelaneous platform dependent initialisations
31 */
32
33 #ifdef CONFIG_CMD_NAND
pm9263_nand_hw_init(void)34 static void pm9263_nand_hw_init(void)
35 {
36 unsigned long csa;
37 struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC0;
38 struct at91_matrix *matrix = (struct at91_matrix *)ATMEL_BASE_MATRIX;
39
40 /* Enable CS3 */
41 csa = readl(&matrix->csa[0]) | AT91_MATRIX_CSA_EBI_CS3A;
42 writel(csa, &matrix->csa[0]);
43
44 /* Configure SMC CS3 for NAND/SmartMedia */
45 writel(AT91_SMC_SETUP_NWE(1) | AT91_SMC_SETUP_NCS_WR(1) |
46 AT91_SMC_SETUP_NRD(1) | AT91_SMC_SETUP_NCS_RD(1),
47 &smc->cs[3].setup);
48
49 writel(AT91_SMC_PULSE_NWE(3) | AT91_SMC_PULSE_NCS_WR(3) |
50 AT91_SMC_PULSE_NRD(3) | AT91_SMC_PULSE_NCS_RD(3),
51 &smc->cs[3].pulse);
52
53 writel(AT91_SMC_CYCLE_NWE(5) | AT91_SMC_CYCLE_NRD(5),
54 &smc->cs[3].cycle);
55
56 writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE |
57 AT91_SMC_MODE_EXNW_DISABLE |
58 #ifdef CONFIG_SYS_NAND_DBW_16
59 AT91_SMC_MODE_DBW_16 |
60 #else /* CONFIG_SYS_NAND_DBW_8 */
61 AT91_SMC_MODE_DBW_8 |
62 #endif
63 AT91_SMC_MODE_TDF_CYCLE(2),
64 &smc->cs[3].mode);
65
66 /* Configure RDY/BSY */
67 gpio_direction_input(CONFIG_SYS_NAND_READY_PIN);
68
69 /* Enable NandFlash */
70 gpio_direction_output(CONFIG_SYS_NAND_ENABLE_PIN, 1);
71 }
72 #endif
73
74 #ifdef CONFIG_MACB
pm9263_macb_hw_init(void)75 static void pm9263_macb_hw_init(void)
76 {
77 /*
78 * PB27 enables the 50MHz oscillator for Ethernet PHY
79 * 1 - enable
80 * 0 - disable
81 */
82 at91_set_pio_output(AT91_PIO_PORTB, 27, 1);
83 at91_set_pio_value(AT91_PIO_PORTB, 27, 1); /* 1- enable, 0 - disable */
84
85 at91_periph_clk_enable(ATMEL_ID_EMAC);
86
87 /*
88 * Disable pull-up on:
89 * RXDV (PC25) => PHY normal mode (not Test mode)
90 * ERX0 (PE25) => PHY ADDR0
91 * ERX1 (PE26) => PHY ADDR1 => PHYADDR = 0x0
92 *
93 * PHY has internal pull-down
94 */
95
96 at91_set_pio_pullup(AT91_PIO_PORTC, 25, 0);
97 at91_set_pio_pullup(AT91_PIO_PORTE, 25, 0);
98 at91_set_pio_pullup(AT91_PIO_PORTE, 26, 0);
99
100 /* Re-enable pull-up */
101 at91_set_pio_pullup(AT91_PIO_PORTC, 25, 1);
102 at91_set_pio_pullup(AT91_PIO_PORTE, 25, 1);
103 at91_set_pio_pullup(AT91_PIO_PORTE, 26, 1);
104
105 at91_macb_hw_init();
106 }
107 #endif
108
109 #ifdef CONFIG_LCD
110
111 #ifdef CONFIG_LCD_IN_PSRAM
112
113 #define PSRAM_CRE_PIN AT91_PIO_PORTB, 29
114 #define PSRAM_CTRL_REG (PHYS_PSRAM + PHYS_PSRAM_SIZE - 2)
115
116 /* Initialize the PSRAM memory */
pm9263_lcd_hw_psram_init(void)117 static int pm9263_lcd_hw_psram_init(void)
118 {
119 unsigned long csa;
120 struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC1;
121 struct at91_matrix *matrix = (struct at91_matrix *)ATMEL_BASE_MATRIX;
122
123 /* Enable CS3 3.3v, no pull-ups */
124 csa = readl(&matrix->csa[1]) | AT91_MATRIX_CSA_DBPUC |
125 AT91_MATRIX_CSA_VDDIOMSEL_3_3V;
126
127 writel(csa, &matrix->csa[1]);
128
129 /* Configure SMC1 CS0 for PSRAM - 16-bit */
130 writel(AT91_SMC_SETUP_NWE(0) | AT91_SMC_SETUP_NCS_WR(0) |
131 AT91_SMC_SETUP_NRD(0) | AT91_SMC_SETUP_NCS_RD(0),
132 &smc->cs[0].setup);
133
134 writel(AT91_SMC_PULSE_NWE(7) | AT91_SMC_PULSE_NCS_WR(7) |
135 AT91_SMC_PULSE_NRD(2) | AT91_SMC_PULSE_NCS_RD(7),
136 &smc->cs[0].pulse);
137
138 writel(AT91_SMC_CYCLE_NWE(8) | AT91_SMC_CYCLE_NRD(8),
139 &smc->cs[0].cycle);
140
141 writel(AT91_SMC_MODE_DBW_16 | AT91_SMC_MODE_PMEN | AT91_SMC_MODE_PS_32,
142 &smc->cs[0].mode);
143
144 /* setup PB29 as output */
145 at91_set_pio_output(PSRAM_CRE_PIN, 1);
146
147 at91_set_pio_value(PSRAM_CRE_PIN, 0); /* set PSRAM_CRE_PIN to '0' */
148
149 /* PSRAM: write BCR */
150 readw(PSRAM_CTRL_REG);
151 readw(PSRAM_CTRL_REG);
152 writew(1, PSRAM_CTRL_REG); /* 0 - RCR,1 - BCR */
153 writew(0x9d4f, PSRAM_CTRL_REG); /* write the BCR */
154
155 /* write RCR of the PSRAM */
156 readw(PSRAM_CTRL_REG);
157 readw(PSRAM_CTRL_REG);
158 writew(0, PSRAM_CTRL_REG); /* 0 - RCR,1 - BCR */
159 /* set RCR; 0x10-async mode,0x90-page mode */
160 writew(0x90, PSRAM_CTRL_REG);
161
162 /*
163 * test to see if the PSRAM is MT45W2M16A or MT45W2M16B
164 * MT45W2M16B - CRE must be 0
165 * MT45W2M16A - CRE must be 1
166 */
167 writew(0x1234, PHYS_PSRAM);
168 writew(0x5678, PHYS_PSRAM + 2);
169
170 /* test if the chip is MT45W2M16B */
171 if ((readw(PHYS_PSRAM) != 0x1234) || (readw(PHYS_PSRAM+2) != 0x5678)) {
172 /* try with CRE=1 (MT45W2M16A) */
173 at91_set_pio_value(PSRAM_CRE_PIN, 1); /* set PSRAM_CRE_PIN to '1' */
174
175 /* write RCR of the PSRAM */
176 readw(PSRAM_CTRL_REG);
177 readw(PSRAM_CTRL_REG);
178 writew(0, PSRAM_CTRL_REG); /* 0 - RCR,1 - BCR */
179 /* set RCR;0x10-async mode,0x90-page mode */
180 writew(0x90, PSRAM_CTRL_REG);
181
182
183 writew(0x1234, PHYS_PSRAM);
184 writew(0x5678, PHYS_PSRAM+2);
185 if ((readw(PHYS_PSRAM) != 0x1234)
186 || (readw(PHYS_PSRAM + 2) != 0x5678))
187 return 1;
188
189 }
190
191 /* Bus matrix */
192 writel(AT91_MATRIX_PRA_M5(3), &matrix->pr[5].a);
193 writel(CONFIG_PSRAM_SCFG, &matrix->scfg[5]);
194
195 return 0;
196 }
197 #endif
198
pm9263_lcd_hw_init(void)199 static void pm9263_lcd_hw_init(void)
200 {
201 /* Power Control */
202 at91_set_pio_output(AT91_PIO_PORTA, 22, 1);
203 at91_set_pio_value(AT91_PIO_PORTA, 22, 0); /* power down */
204
205 #ifdef CONFIG_LCD_IN_PSRAM
206 /* initialize te PSRAM */
207 int stat = pm9263_lcd_hw_psram_init();
208
209 gd->fb_base = (stat == 0) ? PHYS_PSRAM : ATMEL_BASE_SRAM0;
210 #else
211 gd->fb_base = ATMEL_BASE_SRAM0;
212 #endif
213
214 }
215
216 #endif /* CONFIG_LCD */
217
board_early_init_f(void)218 int board_early_init_f(void)
219 {
220 return 0;
221 }
222
board_init(void)223 int board_init(void)
224 {
225 /* arch number of AT91SAM9263EK-Board */
226 gd->bd->bi_arch_number = MACH_TYPE_PM9263;
227
228 /* adress of boot parameters */
229 gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
230
231 #ifdef CONFIG_CMD_NAND
232 pm9263_nand_hw_init();
233 #endif
234 #ifdef CONFIG_MACB
235 pm9263_macb_hw_init();
236 #endif
237 #ifdef CONFIG_USB_OHCI_NEW
238 at91_uhp_hw_init();
239 #endif
240 #ifdef CONFIG_LCD
241 pm9263_lcd_hw_init();
242 #endif
243 return 0;
244 }
245
dram_init(void)246 int dram_init(void)
247 {
248 /* dram_init must store complete ramsize in gd->ram_size */
249 gd->ram_size = get_ram_size((void *)PHYS_SDRAM,
250 PHYS_SDRAM_SIZE);
251 return 0;
252 }
253
dram_init_banksize(void)254 int dram_init_banksize(void)
255 {
256 gd->bd->bi_dram[0].start = PHYS_SDRAM;
257 gd->bd->bi_dram[0].size = PHYS_SDRAM_SIZE;
258
259 return 0;
260 }
261
262 #ifdef CONFIG_RESET_PHY_R
reset_phy(void)263 void reset_phy(void)
264 {
265 }
266 #endif
267
board_eth_init(bd_t * bis)268 int board_eth_init(bd_t *bis)
269 {
270 int rc = 0;
271 #ifdef CONFIG_MACB
272 rc = macb_eth_initialize(0, (void *)ATMEL_BASE_EMAC, 0x01);
273 #endif
274 return rc;
275 }
276
277 #ifdef CONFIG_DISPLAY_BOARDINFO
checkboard(void)278 int checkboard (void)
279 {
280 char *ss;
281
282 printf ("Board : Ronetix PM9263\n");
283
284 switch (gd->fb_base) {
285 case PHYS_PSRAM:
286 ss = "(PSRAM)";
287 break;
288
289 case ATMEL_BASE_SRAM0:
290 ss = "(Internal SRAM)";
291 break;
292
293 default:
294 ss = "";
295 break;
296 }
297 printf("Video memory : 0x%08lX %s\n", gd->fb_base, ss );
298
299 printf ("\n");
300 return 0;
301 }
302 #endif
303