]> git.ipfire.org Git - thirdparty/u-boot.git/blame - arch/nds32/lib/board.c
Add GPL-2.0+ SPDX-License-Identifier to source files
[thirdparty/u-boot.git] / arch / nds32 / lib / board.c
CommitLineData
463d47f6
ML
1/*
2 * (C) Copyright 2002-2006
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4 *
5 * Copyright (C) 2011 Andes Technology Corporation
6 * Shawn Lin, Andes Technology Corporation <nobuhiro@andestech.com>
7 * Macpaul Lin, Andes Technology Corporation <macpaul@andestech.com>
8 *
1a459660 9 * SPDX-License-Identifier: GPL-2.0+
463d47f6
ML
10 */
11
12#include <common.h>
13#include <command.h>
14#include <malloc.h>
15#include <stdio_dev.h>
16#include <timestamp.h>
17#include <version.h>
18#include <net.h>
19#include <serial.h>
20#include <nand.h>
21#include <onenand_uboot.h>
22#include <mmc.h>
fe8e4dba 23#include <asm/sections.h>
463d47f6
ML
24
25DECLARE_GLOBAL_DATA_PTR;
26
27ulong monitor_flash_len;
28
29/*
30 * Init Utilities
31 */
32
33#if !defined(CONFIG_BAUDRATE)
34#define CONFIG_BAUDRATE 38400
35#endif
36static int init_baudrate(void)
37{
569bc625 38 gd->baudrate = getenv_ulong("baudrate", 10, CONFIG_BAUDRATE);
463d47f6
ML
39 return 0;
40}
41
42/*
43 * WARNING: this code looks "cleaner" than the PowerPC version, but
44 * has the disadvantage that you either get nothing, or everything.
45 * On PowerPC, you might see "DRAM: " before the system hangs - which
46 * gives a simple yet clear indication which part of the
47 * initialization if failing.
48 */
49static int display_dram_config(void)
50{
51 int i;
52
53#ifdef DEBUG
54 puts("RAM Configuration:\n");
55
56 for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
57 printf("Bank #%d: %08lx ", i, gd->bd->bi_dram[i].start);
58 print_size(gd->bd->bi_dram[i].size, "\n");
59 }
60#else
61 ulong size = 0;
62
63 for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++)
64 size += gd->bd->bi_dram[i].size;
65
66 puts("DRAM: ");
67 print_size(size, "\n");
68#endif
69
70 return 0;
71}
72
73#ifndef CONFIG_SYS_NO_FLASH
74static void display_flash_config(ulong size)
75{
76 puts("Flash: ");
77 print_size(size, "\n");
78}
79#endif /* CONFIG_SYS_NO_FLASH */
80
81#if defined(CONFIG_CMD_PCI) || defined(CONFIG_PCI)
82#include <pci.h>
83static int nds32_pci_init(void)
84{
85 pci_init();
86 return 0;
87}
88#endif /* CONFIG_CMD_PCI || CONFIG_PCI */
89
90#if defined(CONFIG_PMU) || defined(CONFIG_PCU)
11a05fbd 91#ifndef CONFIG_SKIP_LOWLEVEL_INIT
463d47f6
ML
92static int pmu_init(void)
93{
94#if defined(CONFIG_FTPMU010_POWER)
95#ifdef __NDS32_N1213_43U1H__ /* AG101: internal definition in toolchain */
96 ftpmu010_sdram_clk_disable(CONFIG_SYS_FTPMU010_PDLLCR0_HCLKOUTDIS);
97 ftpmu010_mfpsr_select_dev(FTPMU010_MFPSR_AC97CLKSEL);
98 ftpmu010_sdramhtc_set(CONFIG_SYS_FTPMU010_SDRAMHTC);
99#endif /* __NDS32_N1213_43U1H__ */
100#endif
101 return 0;
102}
103#endif
11a05fbd 104#endif
463d47f6
ML
105
106/*
107 * Breathe some life into the board...
108 *
109 * Initialize a serial port as console, and carry out some hardware
110 * tests.
111 *
112 * The first part of initialization is running from Flash memory;
113 * its main purpose is to initialize the RAM so that we
114 * can relocate the monitor code to RAM.
115 */
116
117/*
118 * All attempts to come up with a "common" initialization sequence
119 * that works for all boards and architectures failed: some of the
120 * requirements are just _too_ different. To get rid of the resulting
121 * mess of board dependent #ifdef'ed code we now make the whole
122 * initialization sequence configurable to the user.
123 *
124 * The requirements for any new initalization function is simple: it
125 * receives a pointer to the "global data" structure as it's only
126 * argument, and returns an integer return code, where 0 means
127 * "continue" and != 0 means "fatal error, hang the system".
128 */
129typedef int (init_fnc_t)(void);
130
131void __dram_init_banksize(void)
132{
133 gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
134 gd->bd->bi_dram[0].size = gd->ram_size;
135}
136void dram_init_banksize(void)
137 __attribute__((weak, alias("__dram_init_banksize")));
138
139init_fnc_t *init_sequence[] = {
140#if defined(CONFIG_ARCH_CPU_INIT)
141 arch_cpu_init, /* basic arch cpu dependent setup */
142#endif
143#if defined(CONFIG_PMU) || defined(CONFIG_PCU)
144#ifndef CONFIG_SKIP_LOWLEVEL_INIT
145 pmu_init,
146#endif
147#endif
148 board_init, /* basic board dependent setup */
149#if defined(CONFIG_USE_IRQ)
150 interrupt_init, /* set up exceptions */
151#endif
152 timer_init, /* initialize timer */
153 env_init, /* initialize environment */
154 init_baudrate, /* initialze baudrate settings */
155 serial_init, /* serial communications setup */
156 console_init_f, /* stage 1 init of console */
157#if defined(CONFIG_DISPLAY_BOARDINFO)
158 checkboard, /* display board info */
159#endif
160#if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
161 init_func_i2c,
162#endif
163 dram_init, /* configure available RAM banks */
164 display_dram_config,
165 NULL,
166};
167
168void board_init_f(ulong bootflag)
169{
170 bd_t *bd;
171 init_fnc_t **init_fnc_ptr;
172 gd_t *id;
173 ulong addr, addr_sp;
174
175 /* Pointer is writable since we allocated a register for it */
176 gd = (gd_t *) ((CONFIG_SYS_INIT_SP_ADDR) & ~0x07);
177
178 memset((void *)gd, 0, GENERATED_GBL_DATA_SIZE);
179
3929fb0a 180 gd->mon_len = (unsigned int)(&__bss_end) - (unsigned int)(&_start);
463d47f6
ML
181
182 for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
183 if ((*init_fnc_ptr)() != 0)
184 hang();
185 }
186
187 debug("monitor len: %08lX\n", gd->mon_len);
188 /*
189 * Ram is setup, size stored in gd !!
190 */
191 debug("ramsize: %08lX\n", gd->ram_size);
192
193 addr = CONFIG_SYS_SDRAM_BASE + gd->ram_size;
194
463d47f6
ML
195 /* round down to next 4 kB limit */
196 addr &= ~(4096 - 1);
197 debug("Top of RAM usable for U-Boot at: %08lx\n", addr);
198
199#ifdef CONFIG_LCD
200#ifdef CONFIG_FB_ADDR
201 gd->fb_base = CONFIG_FB_ADDR;
202#else
203 /* reserve memory for LCD display (always full pages) */
204 addr = lcd_setmem(addr);
205 gd->fb_base = addr;
206#endif /* CONFIG_FB_ADDR */
207#endif /* CONFIG_LCD */
208
209 /*
210 * reserve memory for U-Boot code, data & bss
211 * round down to next 4 kB limit
212 */
213 addr -= gd->mon_len;
214 addr &= ~(4096 - 1);
215
216 debug("Reserving %ldk for U-Boot at: %08lx\n", gd->mon_len >> 10, addr);
217
218 /*
219 * reserve memory for malloc() arena
220 */
221 addr_sp = addr - TOTAL_MALLOC_LEN;
222 debug("Reserving %dk for malloc() at: %08lx\n",
223 TOTAL_MALLOC_LEN >> 10, addr_sp);
224 /*
225 * (permanently) allocate a Board Info struct
226 * and a permanent copy of the "global" data
227 */
228 addr_sp -= GENERATED_BD_INFO_SIZE;
229 bd = (bd_t *) addr_sp;
230 gd->bd = bd;
231 memset((void *)bd, 0, GENERATED_BD_INFO_SIZE);
232 debug("Reserving %zu Bytes for Board Info at: %08lx\n",
233 GENERATED_BD_INFO_SIZE, addr_sp);
234
235 addr_sp -= GENERATED_GBL_DATA_SIZE;
236 id = (gd_t *) addr_sp;
237 debug("Reserving %zu Bytes for Global Data at: %08lx\n",
238 GENERATED_GBL_DATA_SIZE, addr_sp);
239
240 /* setup stackpointer for exeptions */
241 gd->irq_sp = addr_sp;
242#ifdef CONFIG_USE_IRQ
243 addr_sp -= (CONFIG_STACKSIZE_IRQ + CONFIG_STACKSIZE_FIQ);
244 debug("Reserving %zu Bytes for IRQ stack at: %08lx\n",
245 CONFIG_STACKSIZE_IRQ+CONFIG_STACKSIZE_FIQ, addr_sp);
246#endif
247 /* leave 3 words for abort-stack */
248 addr_sp -= 12;
249
250 /* 8-byte alignment for ABI compliance */
251 addr_sp &= ~0x07;
252 debug("New Stack Pointer is: %08lx\n", addr_sp);
253
254 gd->bd->bi_baudrate = gd->baudrate;
255 /* Ram isn't board specific, so move it to board code ... */
256 dram_init_banksize();
257 display_dram_config(); /* and display it */
258
259 gd->relocaddr = addr;
260 gd->start_addr_sp = addr_sp;
261
262 gd->reloc_off = addr - _TEXT_BASE;
263
264 debug("relocation Offset is: %08lx\n", gd->reloc_off);
265 memcpy(id, (void *)gd, GENERATED_GBL_DATA_SIZE);
266
267 relocate_code(addr_sp, id, addr);
268
269 /* NOTREACHED - relocate_code() does not return */
270}
271
272/*
273 * This is the next part if the initialization sequence: we are now
274 * running from RAM and have a "normal" C environment, i. e. global
275 * data can be written, BSS has been cleared, the stack size in not
276 * that critical any more, etc.
277 */
278void board_init_r(gd_t *id, ulong dest_addr)
279{
463d47f6
ML
280 bd_t *bd;
281 ulong malloc_start;
282
463d47f6
ML
283 gd = id;
284 bd = gd->bd;
285
286 gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
287
fe8e4dba 288 monitor_flash_len = (ulong)&_end - (ulong)&_start;
463d47f6
ML
289 debug("monitor flash len: %08lX\n", monitor_flash_len);
290
291 board_init(); /* Setup chipselects */
292
293#if defined(CONFIG_NEEDS_MANUAL_RELOC)
294 /*
295 * We have to relocate the command table manually
296 */
6c7c946c
MV
297 fixup_cmdtable(ll_entry_start(cmd_tbl_t, cmd),
298 ll_entry_count(cmd_tbl_t, cmd));
463d47f6
ML
299#endif /* defined(CONFIG_NEEDS_MANUAL_RELOC) */
300
463d47f6 301 serial_initialize();
463d47f6
ML
302
303 debug("Now running in RAM - U-Boot at: %08lx\n", dest_addr);
304
305 /* The Malloc area is immediately below the monitor copy in DRAM */
306 malloc_start = dest_addr - TOTAL_MALLOC_LEN;
307 mem_malloc_init(malloc_start, TOTAL_MALLOC_LEN);
463d47f6
ML
308
309#ifndef CONFIG_SYS_NO_FLASH
310 /* configure available FLASH banks */
311 gd->bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
312 gd->bd->bi_flashsize = flash_init();
313 gd->bd->bi_flashoffset = CONFIG_SYS_FLASH_BASE + gd->bd->bi_flashsize;
314
315 if (gd->bd->bi_flashsize)
316 display_flash_config(gd->bd->bi_flashsize);
317#endif /* CONFIG_SYS_NO_FLASH */
318
319#if defined(CONFIG_CMD_NAND)
320 puts("NAND: ");
321 nand_init(); /* go init the NAND */
322#endif
323
a2308547
ML
324#if defined(CONFIG_CMD_IDE)
325 puts("IDE: ");
326 ide_init();
327#endif
328
463d47f6
ML
329#ifdef CONFIG_GENERIC_MMC
330 puts("MMC: ");
331 mmc_initialize(gd->bd);
332#endif
333
334 /* initialize environment */
335 env_relocate();
336
337#if defined(CONFIG_CMD_PCI) || defined(CONFIG_PCI)
4ef80679 338 puts("PCI: ");
463d47f6
ML
339 nds32_pci_init();
340#endif
341
463d47f6
ML
342 stdio_init(); /* get the devices list going. */
343
344 jumptable_init();
345
346#if defined(CONFIG_API)
347 /* Initialize API */
348 api_init();
349#endif
350
351 console_init_r(); /* fully init console as a device */
352
353#if defined(CONFIG_ARCH_MISC_INIT)
354 /* miscellaneous arch dependent initialisations */
355 arch_misc_init();
356#endif
357#if defined(CONFIG_MISC_INIT_R)
358 /* miscellaneous platform dependent initialisations */
359 misc_init_r();
360#endif
361
362#if defined(CONFIG_USE_IRQ)
363 /* set up exceptions */
364 interrupt_init();
365 /* enable exceptions */
366 enable_interrupts();
367#endif
368
369 /* Initialize from environment */
569bc625 370 load_addr = getenv_ulong("loadaddr", 16, load_addr);
463d47f6 371
6abcf2d5 372#ifdef CONFIG_BOARD_LATE_INIT
463d47f6
ML
373 board_late_init();
374#endif
375
376#if defined(CONFIG_CMD_NET)
377 puts("Net: ");
378
379 eth_initialize(gd->bd);
380#if defined(CONFIG_RESET_PHY_R)
381 debug("Reset Ethernet PHY\n");
382 reset_phy();
383#endif
384#endif
385
386 /* main_loop() can return to retry autoboot, if so just run it again. */
387 for (;;)
388 main_loop();
389
390 /* NOTREACHED - no way out of command loop except booting */
391}