2 * (C) Copyright 2002-2006
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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>
9 * SPDX-License-Identifier: GPL-2.0+
15 #include <stdio_dev.h>
16 #include <timestamp.h>
21 #include <onenand_uboot.h>
23 #include <asm/sections.h>
25 DECLARE_GLOBAL_DATA_PTR;
27 #if defined(CONFIG_SYS_I2C)
31 ulong monitor_flash_len;
37 #if !defined(CONFIG_BAUDRATE)
38 #define CONFIG_BAUDRATE 38400
40 static int init_baudrate(void)
42 gd->baudrate = getenv_ulong("baudrate", 10, CONFIG_BAUDRATE);
47 * WARNING: this code looks "cleaner" than the PowerPC version, but
48 * has the disadvantage that you either get nothing, or everything.
49 * On PowerPC, you might see "DRAM: " before the system hangs - which
50 * gives a simple yet clear indication which part of the
51 * initialization if failing.
53 static int display_dram_config(void)
58 puts("RAM Configuration:\n");
60 for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
61 printf("Bank #%d: %08lx ", i, gd->bd->bi_dram[i].start);
62 print_size(gd->bd->bi_dram[i].size, "\n");
67 for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++)
68 size += gd->bd->bi_dram[i].size;
71 print_size(size, "\n");
77 #ifndef CONFIG_SYS_NO_FLASH
78 static void display_flash_config(ulong size)
81 print_size(size, "\n");
83 #endif /* CONFIG_SYS_NO_FLASH */
85 #if defined(CONFIG_CMD_PCI) || defined(CONFIG_PCI)
87 static int nds32_pci_init(void)
92 #endif /* CONFIG_CMD_PCI || CONFIG_PCI */
94 #if defined(CONFIG_PMU) || defined(CONFIG_PCU)
95 #ifndef CONFIG_SKIP_LOWLEVEL_INIT
96 static int pmu_init(void)
98 #if defined(CONFIG_FTPMU010_POWER)
99 #ifdef __NDS32_N1213_43U1H__ /* AG101: internal definition in toolchain */
100 ftpmu010_sdram_clk_disable(CONFIG_SYS_FTPMU010_PDLLCR0_HCLKOUTDIS);
101 ftpmu010_mfpsr_select_dev(FTPMU010_MFPSR_AC97CLKSEL);
102 ftpmu010_sdramhtc_set(CONFIG_SYS_FTPMU010_SDRAMHTC);
103 #endif /* __NDS32_N1213_43U1H__ */
111 * Breathe some life into the board...
113 * Initialize a serial port as console, and carry out some hardware
116 * The first part of initialization is running from Flash memory;
117 * its main purpose is to initialize the RAM so that we
118 * can relocate the monitor code to RAM.
122 * All attempts to come up with a "common" initialization sequence
123 * that works for all boards and architectures failed: some of the
124 * requirements are just _too_ different. To get rid of the resulting
125 * mess of board dependent #ifdef'ed code we now make the whole
126 * initialization sequence configurable to the user.
128 * The requirements for any new initalization function is simple: it
129 * receives a pointer to the "global data" structure as it's only
130 * argument, and returns an integer return code, where 0 means
131 * "continue" and != 0 means "fatal error, hang the system".
133 typedef int (init_fnc_t)(void);
135 void __dram_init_banksize(void)
137 gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
138 gd->bd->bi_dram[0].size = gd->ram_size;
140 void dram_init_banksize(void)
141 __attribute__((weak, alias("__dram_init_banksize")));
143 init_fnc_t *init_sequence[] = {
144 #if defined(CONFIG_ARCH_CPU_INIT)
145 arch_cpu_init, /* basic arch cpu dependent setup */
147 #if defined(CONFIG_PMU) || defined(CONFIG_PCU)
148 #ifndef CONFIG_SKIP_LOWLEVEL_INIT
152 board_init, /* basic board dependent setup */
153 #if defined(CONFIG_USE_IRQ)
154 interrupt_init, /* set up exceptions */
156 timer_init, /* initialize timer */
157 env_init, /* initialize environment */
158 init_baudrate, /* initialze baudrate settings */
159 serial_init, /* serial communications setup */
160 console_init_f, /* stage 1 init of console */
161 #if defined(CONFIG_DISPLAY_BOARDINFO)
162 checkboard, /* display board info */
164 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SYS_I2C)
167 dram_init, /* configure available RAM banks */
172 void board_init_f(ulong bootflag)
175 init_fnc_t **init_fnc_ptr;
179 /* Pointer is writable since we allocated a register for it */
180 gd = (gd_t *) ((CONFIG_SYS_INIT_SP_ADDR) & ~0x07);
182 memset((void *)gd, 0, GENERATED_GBL_DATA_SIZE);
184 gd->mon_len = (unsigned int)(&__bss_end) - (unsigned int)(&_start);
186 for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
187 if ((*init_fnc_ptr)() != 0)
191 debug("monitor len: %08lX\n", gd->mon_len);
193 * Ram is setup, size stored in gd !!
195 debug("ramsize: %08lX\n", gd->ram_size);
197 addr = CONFIG_SYS_SDRAM_BASE + gd->ram_size;
199 /* round down to next 4 kB limit */
201 debug("Top of RAM usable for U-Boot at: %08lx\n", addr);
204 #ifdef CONFIG_FB_ADDR
205 gd->fb_base = CONFIG_FB_ADDR;
207 /* reserve memory for LCD display (always full pages) */
208 addr = lcd_setmem(addr);
210 #endif /* CONFIG_FB_ADDR */
211 #endif /* CONFIG_LCD */
214 * reserve memory for U-Boot code, data & bss
215 * round down to next 4 kB limit
220 debug("Reserving %ldk for U-Boot at: %08lx\n", gd->mon_len >> 10, addr);
223 * reserve memory for malloc() arena
225 addr_sp = addr - TOTAL_MALLOC_LEN;
226 debug("Reserving %dk for malloc() at: %08lx\n",
227 TOTAL_MALLOC_LEN >> 10, addr_sp);
229 * (permanently) allocate a Board Info struct
230 * and a permanent copy of the "global" data
232 addr_sp -= GENERATED_BD_INFO_SIZE;
233 bd = (bd_t *) addr_sp;
235 memset((void *)bd, 0, GENERATED_BD_INFO_SIZE);
236 debug("Reserving %zu Bytes for Board Info at: %08lx\n",
237 GENERATED_BD_INFO_SIZE, addr_sp);
239 addr_sp -= GENERATED_GBL_DATA_SIZE;
240 id = (gd_t *) addr_sp;
241 debug("Reserving %zu Bytes for Global Data at: %08lx\n",
242 GENERATED_GBL_DATA_SIZE, addr_sp);
244 /* setup stackpointer for exeptions */
245 gd->irq_sp = addr_sp;
246 #ifdef CONFIG_USE_IRQ
247 addr_sp -= (CONFIG_STACKSIZE_IRQ + CONFIG_STACKSIZE_FIQ);
248 debug("Reserving %zu Bytes for IRQ stack at: %08lx\n",
249 CONFIG_STACKSIZE_IRQ+CONFIG_STACKSIZE_FIQ, addr_sp);
251 /* leave 3 words for abort-stack */
254 /* 8-byte alignment for ABI compliance */
256 debug("New Stack Pointer is: %08lx\n", addr_sp);
258 gd->bd->bi_baudrate = gd->baudrate;
259 /* Ram isn't board specific, so move it to board code ... */
260 dram_init_banksize();
261 display_dram_config(); /* and display it */
263 gd->relocaddr = addr;
264 gd->start_addr_sp = addr_sp;
266 gd->reloc_off = addr - _TEXT_BASE;
268 debug("relocation Offset is: %08lx\n", gd->reloc_off);
269 memcpy(id, (void *)gd, GENERATED_GBL_DATA_SIZE);
271 relocate_code(addr_sp, id, addr);
273 /* NOTREACHED - relocate_code() does not return */
277 * This is the next part if the initialization sequence: we are now
278 * running from RAM and have a "normal" C environment, i. e. global
279 * data can be written, BSS has been cleared, the stack size in not
280 * that critical any more, etc.
282 void board_init_r(gd_t *id, ulong dest_addr)
290 gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
292 monitor_flash_len = (ulong)&_end - (ulong)&_start;
293 debug("monitor flash len: %08lX\n", monitor_flash_len);
295 board_init(); /* Setup chipselects */
297 #if defined(CONFIG_NEEDS_MANUAL_RELOC)
299 * We have to relocate the command table manually
301 fixup_cmdtable(ll_entry_start(cmd_tbl_t, cmd),
302 ll_entry_count(cmd_tbl_t, cmd));
303 #endif /* defined(CONFIG_NEEDS_MANUAL_RELOC) */
307 debug("Now running in RAM - U-Boot at: %08lx\n", dest_addr);
309 /* The Malloc area is immediately below the monitor copy in DRAM */
310 malloc_start = dest_addr - TOTAL_MALLOC_LEN;
311 mem_malloc_init(malloc_start, TOTAL_MALLOC_LEN);
313 #ifndef CONFIG_SYS_NO_FLASH
314 /* configure available FLASH banks */
315 gd->bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
316 gd->bd->bi_flashsize = flash_init();
317 gd->bd->bi_flashoffset = CONFIG_SYS_FLASH_BASE + gd->bd->bi_flashsize;
319 if (gd->bd->bi_flashsize)
320 display_flash_config(gd->bd->bi_flashsize);
321 #endif /* CONFIG_SYS_NO_FLASH */
323 #if defined(CONFIG_CMD_NAND)
325 nand_init(); /* go init the NAND */
328 #if defined(CONFIG_CMD_IDE)
333 #ifdef CONFIG_GENERIC_MMC
335 mmc_initialize(gd->bd);
338 #if defined(CONFIG_SYS_I2C_ADAPTERS)
342 /* initialize environment */
345 #if defined(CONFIG_CMD_PCI) || defined(CONFIG_PCI)
350 stdio_init(); /* get the devices list going. */
354 #if defined(CONFIG_API)
359 console_init_r(); /* fully init console as a device */
361 #if defined(CONFIG_ARCH_MISC_INIT)
362 /* miscellaneous arch dependent initialisations */
365 #if defined(CONFIG_MISC_INIT_R)
366 /* miscellaneous platform dependent initialisations */
370 #if defined(CONFIG_USE_IRQ)
371 /* set up exceptions */
373 /* enable exceptions */
377 /* Initialize from environment */
378 load_addr = getenv_ulong("loadaddr", 16, load_addr);
380 #ifdef CONFIG_BOARD_LATE_INIT
384 #if defined(CONFIG_CMD_NET)
387 eth_initialize(gd->bd);
388 #if defined(CONFIG_RESET_PHY_R)
389 debug("Reset Ethernet PHY\n");
394 /* main_loop() can return to retry autoboot, if so just run it again. */
398 /* NOTREACHED - no way out of command loop except booting */