xref: /openbmc/u-boot/board/freescale/c29xpcie/spl.c (revision ad5b5801)
1 /* Copyright 2013 Freescale Semiconductor, Inc.
2  *
3  * SPDX-License-Identifier:    GPL-2.0+
4  */
5 
6 #include <common.h>
7 #include <console.h>
8 #include <ns16550.h>
9 #include <malloc.h>
10 #include <mmc.h>
11 #include <nand.h>
12 #include <i2c.h>
13 
14 DECLARE_GLOBAL_DATA_PTR;
15 
16 phys_size_t get_effective_memsize(void)
17 {
18 	return CONFIG_SYS_L2_SIZE;
19 }
20 
21 void board_init_f(ulong bootflag)
22 {
23 	u32 plat_ratio;
24 	ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
25 
26 	console_init_f();
27 
28 	/* initialize selected port with appropriate baud rate */
29 	plat_ratio = in_be32(&gur->porpllsr) & MPC85xx_PORPLLSR_PLAT_RATIO;
30 	plat_ratio >>= 1;
31 	gd->bus_clk = CONFIG_SYS_CLK_FREQ * plat_ratio;
32 
33 	NS16550_init((NS16550_t)CONFIG_SYS_NS16550_COM1,
34 		     gd->bus_clk / 16 / CONFIG_BAUDRATE);
35 
36 	/* copy code to RAM and jump to it - this should not return */
37 	/* NOTE - code has to be copied out of NAND buffer before
38 	 * other blocks can be read.
39 	 */
40 	relocate_code(CONFIG_SPL_RELOC_STACK, 0, CONFIG_SPL_RELOC_TEXT_BASE);
41 }
42 
43 void board_init_r(gd_t *gd, ulong dest_addr)
44 {
45 	/* Pointer is writable since we allocated a register for it */
46 	gd = (gd_t *)CONFIG_SPL_GD_ADDR;
47 	bd_t *bd;
48 
49 	memset(gd, 0, sizeof(gd_t));
50 	bd = (bd_t *)(CONFIG_SPL_GD_ADDR + sizeof(gd_t));
51 	memset(bd, 0, sizeof(bd_t));
52 	gd->bd = bd;
53 	bd->bi_memstart = CONFIG_SYS_INIT_L2_ADDR;
54 	bd->bi_memsize = CONFIG_SYS_L2_SIZE;
55 
56 	probecpu();
57 	get_clocks();
58 	mem_malloc_init(CONFIG_SPL_RELOC_MALLOC_ADDR,
59 			CONFIG_SPL_RELOC_MALLOC_SIZE);
60 
61 	/* relocate environment function pointers etc. */
62 	nand_spl_load_image(CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE,
63 			    (uchar *)CONFIG_ENV_ADDR);
64 	gd->env_addr  = (ulong)(CONFIG_ENV_ADDR);
65 	gd->env_valid = 1;
66 
67 	i2c_init_all();
68 
69 	gd->ram_size = initdram(0);
70 
71 #ifdef CONFIG_SPL_NAND_BOOT
72 	puts("TPL\n");
73 #else
74 	puts("SPL\n");
75 #endif
76 
77 	nand_boot();
78 }
79