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1/*
2 * (C) Copyright 2003
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4 *
5 * (C) Copyright 2004
6 * Mark Jonas, Freescale Semiconductor, mark.jonas@motorola.com.
7 *
8 * (C) Copyright 2005-2009
9 * Modified for InterControl digsyMTC MPC5200 board by
10 * Frank Bodammer, GCD Hard- & Software GmbH,
11 * frank.bodammer@gcd-solutions.de
12 *
13 * (C) Copyright 2009
14 * Grzegorz Bernacki, Semihalf, gjb@semihalf.com
15 *
1a459660 16 * SPDX-License-Identifier: GPL-2.0+
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17 */
18
19#include <common.h>
20#include <mpc5xxx.h>
21#include <net.h>
22#include <pci.h>
23#include <asm/processor.h>
24#include <asm/io.h>
25#include "eeprom.h"
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26#if defined(CONFIG_DIGSY_REV5)
27#include "is45s16800a2.h"
28#include <mtd/cfi_flash.h>
f3143134 29#include <flash.h>
466f0137 30#else
5c4fa9b4 31#include "is42s16800a-7t.h"
466f0137
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32#endif
33#include <libfdt.h>
927d2cea 34#include <fdt_support.h>
a59996e3 35#include <i2c.h>
02ab0970 36#include <mb862xx.h>
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37
38DECLARE_GLOBAL_DATA_PTR;
39
40extern int usb_cpu_init(void);
41
466f0137
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42#if defined(CONFIG_DIGSY_REV5)
43/*
b3525488 44 * The M29W128GH needs a special reset command function,
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45 * details see the doc/README.cfi file
46 */
47void flash_cmd_reset(flash_info_t *info)
48{
49 flash_write_cmd(info, 0, 0, AMD_CMD_RESET);
50}
51#endif
52
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53#ifndef CONFIG_SYS_RAMBOOT
54static void sdram_start(int hi_addr)
55{
56 long hi_addr_bit = hi_addr ? 0x01000000 : 0;
57 long control = SDRAM_CONTROL | hi_addr_bit;
58
59 /* unlock mode register */
60 out_be32((void *)MPC5XXX_SDRAM_CTRL, control | 0x80000000);
61
62 /* precharge all banks */
63 out_be32((void *)MPC5XXX_SDRAM_CTRL, control | 0x80000002);
64
65 /* auto refresh */
66 out_be32((void *)MPC5XXX_SDRAM_CTRL, control | 0x80000004);
67
68 /* set mode register */
69 out_be32((void *)MPC5XXX_SDRAM_MODE, SDRAM_MODE);
70
71 /* normal operation */
72 out_be32((void *)MPC5XXX_SDRAM_CTRL, control);
73}
74#endif
75
76/*
f1683aa7 77 * ATTENTION: Although partially referenced dram_init does NOT make real use
5c4fa9b4 78 * use of CONFIG_SYS_SDRAM_BASE. The code does not work if
b3525488 79 * CONFIG_SYS_SDRAM_BASE is something other than 0x00000000.
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80 */
81
f1683aa7 82int dram_init(void)
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83{
84 ulong dramsize = 0;
85 ulong dramsize2 = 0;
86 uint svr, pvr;
87#ifndef CONFIG_SYS_RAMBOOT
88 ulong test1, test2;
89
90 /* setup SDRAM chip selects */
91 out_be32((void *)MPC5XXX_SDRAM_CS0CFG, 0x0000001C); /* 512MB at 0x0 */
92 out_be32((void *)MPC5XXX_SDRAM_CS1CFG, 0x80000000); /* disabled */
93
94 /* setup config registers */
95 out_be32((void *)MPC5XXX_SDRAM_CONFIG1, SDRAM_CONFIG1);
96 out_be32((void *)MPC5XXX_SDRAM_CONFIG2, SDRAM_CONFIG2);
97
98 /* find RAM size using SDRAM CS0 only */
99 sdram_start(0);
100 test1 = get_ram_size((long *)CONFIG_SYS_SDRAM_BASE, 0x08000000);
101 sdram_start(1);
102 test2 = get_ram_size((long *)CONFIG_SYS_SDRAM_BASE, 0x08000000);
103 if (test1 > test2) {
104 sdram_start(0);
105 dramsize = test1;
106 } else {
107 dramsize = test2;
108 }
109
110 /* memory smaller than 1MB is impossible */
111 if (dramsize < (1 << 20))
112 dramsize = 0;
113
114 /* set SDRAM CS0 size according to the amount of RAM found */
115 if (dramsize > 0) {
116 out_be32((void *)MPC5XXX_SDRAM_CS0CFG,
117 (0x13 + __builtin_ffs(dramsize >> 20) - 1));
118 } else {
119 out_be32((void *)MPC5XXX_SDRAM_CS0CFG, 0); /* disabled */
120 }
121
122 /* let SDRAM CS1 start right after CS0 */
123 out_be32((void *)MPC5XXX_SDRAM_CS1CFG, dramsize + 0x0000001C);
124
125 /* find RAM size using SDRAM CS1 only */
126 test1 = get_ram_size((long *)(CONFIG_SYS_SDRAM_BASE + dramsize),
127 0x08000000);
128 dramsize2 = test1;
129
130 /* memory smaller than 1MB is impossible */
131 if (dramsize2 < (1 << 20))
132 dramsize2 = 0;
133
134 /* set SDRAM CS1 size according to the amount of RAM found */
135 if (dramsize2 > 0) {
136 out_be32((void *)MPC5XXX_SDRAM_CS1CFG, (dramsize |
137 (0x13 + __builtin_ffs(dramsize2 >> 20) - 1)));
138 } else {
139 out_be32((void *)MPC5XXX_SDRAM_CS1CFG, dramsize); /* disabled */
140 }
141
142#else /* CONFIG_SYS_RAMBOOT */
143
144 /* retrieve size of memory connected to SDRAM CS0 */
145 dramsize = in_be32((void *)MPC5XXX_SDRAM_CS0CFG) & 0xFF;
146 if (dramsize >= 0x13)
147 dramsize = (1 << (dramsize - 0x13)) << 20;
148 else
149 dramsize = 0;
150
151 /* retrieve size of memory connected to SDRAM CS1 */
152 dramsize2 = in_be32((void *)MPC5XXX_SDRAM_CS1CFG) & 0xFF;
153 if (dramsize2 >= 0x13)
154 dramsize2 = (1 << (dramsize2 - 0x13)) << 20;
155 else
156 dramsize2 = 0;
157
158#endif /* CONFIG_SYS_RAMBOOT */
159
160 /*
161 * On MPC5200B we need to set the special configuration delay in the
162 * DDR controller. Please refer to Freescale's AN3221 "MPC5200B SDRAM
163 * Initialization and Configuration", 3.3.1 SDelay--MBAR + 0x0190:
164 *
165 * "The SDelay should be written to a value of 0x00000004. It is
166 * required to account for changes caused by normal wafer processing
167 * parameters."
168 */
169 svr = get_svr();
170 pvr = get_pvr();
171 if ((SVR_MJREV(svr) >= 2) &&
172 (PVR_MAJ(pvr) == 1) && (PVR_MIN(pvr) == 4))
173 out_be32((void *)MPC5XXX_SDRAM_SDELAY, 0x04);
174
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175 gd->ram_size = dramsize + dramsize2;
176
177 return 0;
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178}
179
180int checkboard(void)
181{
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182 char buf[64];
183 int i = getenv_f("serial#", buf, sizeof(buf));
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184
185 puts ("Board: InterControl digsyMTC");
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186#if defined(CONFIG_DIGSY_REV5)
187 puts (" rev5");
188#endif
f0c0b3a9 189 if (i > 0) {
5c4fa9b4 190 puts(", ");
f0c0b3a9 191 puts(buf);
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192 }
193 putc('\n');
194
195 return 0;
196}
197
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198#if defined(CONFIG_VIDEO)
199
200#define GPIO_USB1_0 0x00010000 /* Power-On pin */
201#define GPIO_USB1_9 0x08 /* PX_~EN pin */
202
203#define GPIO_EE_DO 0x10 /* PSC6_0 (DO) pin */
204#define GPIO_EE_CTS 0x20 /* PSC6_1 (CTS) pin */
205#define GPIO_EE_DI 0x10000000 /* PSC6_2 (DI) pin */
206#define GPIO_EE_CLK 0x20000000 /* PSC6_3 (CLK) pin */
207
208#define GPT_GPIO_ON 0x00000034 /* GPT as simple GPIO, high */
209
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210static void exbo_hw_init(void)
211{
212 struct mpc5xxx_gpt *gpt = (struct mpc5xxx_gpt *)MPC5XXX_GPT;
213 struct mpc5xxx_gpio *gpio = (struct mpc5xxx_gpio *)MPC5XXX_GPIO;
214 struct mpc5xxx_wu_gpio *wu_gpio =
215 (struct mpc5xxx_wu_gpio *)MPC5XXX_WU_GPIO;
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216
217 /* configure IrDA pins (PSC6 port) as gpios */
218 gpio->port_config &= 0xFF8FFFFF;
219
220 /* Init for USB1_0, EE_CLK and EE_DI - Low */
221 setbits_be32(&gpio->simple_ddr,
222 GPIO_USB1_0 | GPIO_EE_CLK | GPIO_EE_DI);
223 clrbits_be32(&gpio->simple_ode,
224 GPIO_USB1_0 | GPIO_EE_CLK | GPIO_EE_DI);
225 clrbits_be32(&gpio->simple_dvo,
226 GPIO_USB1_0 | GPIO_EE_CLK | GPIO_EE_DI);
227 setbits_be32(&gpio->simple_gpioe,
228 GPIO_USB1_0 | GPIO_EE_CLK | GPIO_EE_DI);
229
230 /* Init for EE_DO, EE_CTS - Input */
231 clrbits_8(&wu_gpio->ddr, GPIO_EE_DO | GPIO_EE_CTS);
232 setbits_8(&wu_gpio->enable, GPIO_EE_DO | GPIO_EE_CTS);
233
234 /* Init for PX_~EN (USB1_9) - High */
235 clrbits_8(&gpio->sint_ode, GPIO_USB1_9);
236 setbits_8(&gpio->sint_ddr, GPIO_USB1_9);
237 clrbits_8(&gpio->sint_inten, GPIO_USB1_9);
238 setbits_8(&gpio->sint_dvo, GPIO_USB1_9);
239 setbits_8(&gpio->sint_gpioe, GPIO_USB1_9);
240
241 /* Init for ~OE Switch (GPIO3) - Timer_0 GPIO High */
242 out_be32(&gpt[0].emsr, GPT_GPIO_ON);
243 /* Init for S Switch (GPIO4) - Timer_1 GPIO High */
244 out_be32(&gpt[1].emsr, GPT_GPIO_ON);
245
246 /* Power-On camera supply */
247 setbits_be32(&gpio->simple_dvo, GPIO_USB1_0);
248}
249#else
250static inline void exbo_hw_init(void) {}
251#endif /* CONFIG_VIDEO */
252
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253int board_early_init_r(void)
254{
255 /*
256 * Now, when we are in RAM, enable flash write access for detection
257 * process. Note that CS_BOOT cannot be cleared when executing in
258 * flash.
259 */
260 /* disable CS_BOOT */
261 clrbits_be32((void *)MPC5XXX_ADDECR, (1 << 25));
262 /* enable CS1 */
263 setbits_be32((void *)MPC5XXX_ADDECR, (1 << 17));
264 /* enable CS0 */
265 setbits_be32((void *)MPC5XXX_ADDECR, (1 << 16));
266
267#if defined(CONFIG_USB_OHCI_NEW) && defined(CONFIG_SYS_USB_OHCI_CPU_INIT)
268 /* Low level USB init, required for proper kernel operation */
269 usb_cpu_init();
270#endif
f1f66edf 271
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272 return (0);
273}
274
275void board_get_enetaddr (uchar * enet)
276{
277 ushort read = 0;
278 ushort addr_of_eth_addr = 0;
279 ushort len_sys = 0;
280 ushort len_sys_cfg = 0;
281
282 /* check identification word */
283 eeprom_read(EEPROM_ADDR, EEPROM_ADDR_IDENT, (uchar *)&read, 2);
284 if (read != EEPROM_IDENT)
285 return;
286
287 /* calculate offset of config area */
288 eeprom_read(EEPROM_ADDR, EEPROM_ADDR_LEN_SYS, (uchar *)&len_sys, 2);
289 eeprom_read(EEPROM_ADDR, EEPROM_ADDR_LEN_SYSCFG,
290 (uchar *)&len_sys_cfg, 2);
291 addr_of_eth_addr = (len_sys + len_sys_cfg + EEPROM_ADDR_ETHADDR) << 1;
292 if (addr_of_eth_addr >= EEPROM_LEN)
293 return;
294
295 eeprom_read(EEPROM_ADDR, addr_of_eth_addr, enet, 6);
296}
297
298int misc_init_r(void)
299{
02ab0970 300 pci_dev_t devbusfn;
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301 uchar enetaddr[6];
302
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303 /* check if graphic extension board is present */
304 devbusfn = pci_find_device(PCI_VENDOR_ID_FUJITSU,
305 PCI_DEVICE_ID_CORAL_PA, 0);
306 if (devbusfn != -1)
307 exbo_hw_init();
308
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309 if (!eth_getenv_enetaddr("ethaddr", enetaddr)) {
310 board_get_enetaddr(enetaddr);
311 eth_setenv_enetaddr("ethaddr", enetaddr);
312 }
313
314 return 0;
315}
316
317#ifdef CONFIG_PCI
318static struct pci_controller hose;
319
320extern void pci_mpc5xxx_init(struct pci_controller *);
321
322void pci_init_board(void)
323{
324 pci_mpc5xxx_init(&hose);
325}
326#endif
327
fc843a02 328#ifdef CONFIG_IDE
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329
330#ifdef CONFIG_IDE_RESET
331
332void init_ide_reset(void)
333{
334 debug ("init_ide_reset\n");
335
336 /* set gpio output value to 1 */
337 setbits_be32((void *)MPC5XXX_WU_GPIO_DATA_O, (1 << 25));
338 /* open drain output */
339 setbits_be32((void *)MPC5XXX_WU_GPIO_ODE, (1 << 25));
340 /* direction output */
341 setbits_be32((void *)MPC5XXX_WU_GPIO_DIR, (1 << 25));
342 /* enable gpio */
343 setbits_be32((void *)MPC5XXX_WU_GPIO_ENABLE, (1 << 25));
344
345}
346
347void ide_set_reset(int idereset)
348{
349 debug ("ide_reset(%d)\n", idereset);
350
351 /* set gpio output value to 0 */
352 clrbits_be32((void *)MPC5XXX_WU_GPIO_DATA_O, (1 << 25));
353 /* open drain output */
354 setbits_be32((void *)MPC5XXX_WU_GPIO_ODE, (1 << 25));
355 /* direction output */
356 setbits_be32((void *)MPC5XXX_WU_GPIO_DIR, (1 << 25));
357 /* enable gpio */
358 setbits_be32((void *)MPC5XXX_WU_GPIO_ENABLE, (1 << 25));
359
360 udelay(10000);
361
362 /* set gpio output value to 1 */
363 setbits_be32((void *)MPC5XXX_WU_GPIO_DATA_O, (1 << 25));
364 /* open drain output */
365 setbits_be32((void *)MPC5XXX_WU_GPIO_ODE, (1 << 25));
366 /* direction output */
367 setbits_be32((void *)MPC5XXX_WU_GPIO_DIR, (1 << 25));
368 /* enable gpio */
369 setbits_be32((void *)MPC5XXX_WU_GPIO_ENABLE, (1 << 25));
370}
371#endif /* CONFIG_IDE_RESET */
fc843a02 372#endif /* CONFIG_IDE */
5c4fa9b4 373
7ffe3cd6 374#ifdef CONFIG_OF_BOARD_SETUP
466f0137
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375static void ft_delete_node(void *fdt, const char *compat)
376{
377 int off = -1;
378 int ret;
379
380 off = fdt_node_offset_by_compatible(fdt, -1, compat);
381 if (off < 0) {
382 printf("Could not find %s node.\n", compat);
383 return;
384 }
385
386 ret = fdt_del_node(fdt, off);
387 if (ret < 0)
388 printf("Could not delete %s node.\n", compat);
389}
390#if defined(CONFIG_SYS_UPDATE_FLASH_SIZE)
391static void ft_adapt_flash_base(void *blob)
392{
393 flash_info_t *dev = &flash_info[0];
394 int off;
395 struct fdt_property *prop;
396 int len;
397 u32 *reg, *reg2;
398
399 off = fdt_node_offset_by_compatible(blob, -1, "fsl,mpc5200b-lpb");
400 if (off < 0) {
401 printf("Could not find fsl,mpc5200b-lpb node.\n");
402 return;
403 }
404
405 /* found compatible property */
406 prop = fdt_get_property_w(blob, off, "ranges", &len);
407 if (prop) {
408 reg = reg2 = (u32 *)&prop->data[0];
409
410 reg[2] = dev->start[0];
411 reg[3] = dev->size;
412 fdt_setprop(blob, off, "ranges", reg2, len);
413 } else
414 printf("Could not find ranges\n");
415}
416
417extern ulong flash_get_size (phys_addr_t base, int banknum);
418
419/* Update the Flash Baseaddr settings */
420int update_flash_size (int flash_size)
421{
422 volatile struct mpc5xxx_mmap_ctl *mm =
423 (struct mpc5xxx_mmap_ctl *) CONFIG_SYS_MBAR;
424 flash_info_t *dev;
425 int i;
426 int size = 0;
427 unsigned long base = 0x0;
428 u32 *cs_reg = (u32 *)&mm->cs0_start;
429
430 for (i = 0; i < 2; i++) {
431 dev = &flash_info[i];
432
433 if (dev->size) {
434 /* calculate new base addr for this chipselect */
435 base -= dev->size;
436 out_be32(cs_reg, START_REG(base));
437 cs_reg++;
438 out_be32(cs_reg, STOP_REG(base, dev->size));
439 cs_reg++;
440 /* recalculate the sectoraddr in the cfi driver */
441 size += flash_get_size(base, i);
442 }
443 }
f3143134 444 flash_protect_default();
466f0137
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445 gd->bd->bi_flashstart = base;
446 return 0;
447}
448#endif /* defined(CONFIG_SYS_UPDATE_FLASH_SIZE) */
449
e895a4b0 450int ft_board_setup(void *blob, bd_t *bd)
5c4fa9b4 451{
1b41493d
HS
452 int phy_addr = CONFIG_PHY_ADDR;
453 char eth_path[] = "/soc5200@f0000000/mdio@3000/ethernet-phy@0";
454
5c4fa9b4 455 ft_cpu_setup(blob, bd);
466f0137
HS
456 /*
457 * There are 2 RTC nodes in the DTS, so remove
458 * the unneeded node here.
459 */
460#if defined(CONFIG_DIGSY_REV5)
461 ft_delete_node(blob, "dallas,ds1339");
462#else
463 ft_delete_node(blob, "mc,rv3029c2");
464#endif
465#if defined(CONFIG_SYS_UPDATE_FLASH_SIZE)
927d2cea
HS
466#ifdef CONFIG_FDT_FIXUP_NOR_FLASH_SIZE
467 /* Update reg property in all nor flash nodes too */
468 fdt_fixup_nor_flash_size(blob);
469#endif
466f0137
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470 ft_adapt_flash_base(blob);
471#endif
1b41493d
HS
472 /* fix up the phy address */
473 do_fixup_by_path(blob, eth_path, "reg", &phy_addr, sizeof(int), 0);
e895a4b0
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474
475 return 0;
5c4fa9b4 476}
7ffe3cd6 477#endif /* CONFIG_OF_BOARD_SETUP */