xref: /openbmc/u-boot/board/freescale/c29xpcie/spl.c (revision 53ab4af3)
1 /* Copyright 2013 Freescale Semiconductor, Inc.
2  *
3  * SPDX-License-Identifier:    GPL-2.0+
4  */
5 
6 #include <common.h>
7 #include <ns16550.h>
8 #include <malloc.h>
9 #include <mmc.h>
10 #include <nand.h>
11 #include <i2c.h>
12 
13 DECLARE_GLOBAL_DATA_PTR;
14 
15 phys_size_t get_effective_memsize(void)
16 {
17 	return CONFIG_SYS_L2_SIZE;
18 }
19 
20 void board_init_f(ulong bootflag)
21 {
22 	u32 plat_ratio;
23 	ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
24 
25 	console_init_f();
26 
27 	/* initialize selected port with appropriate baud rate */
28 	plat_ratio = in_be32(&gur->porpllsr) & MPC85xx_PORPLLSR_PLAT_RATIO;
29 	plat_ratio >>= 1;
30 	gd->bus_clk = CONFIG_SYS_CLK_FREQ * plat_ratio;
31 
32 	NS16550_init((NS16550_t)CONFIG_SYS_NS16550_COM1,
33 		     gd->bus_clk / 16 / CONFIG_BAUDRATE);
34 
35 	/* copy code to RAM and jump to it - this should not return */
36 	/* NOTE - code has to be copied out of NAND buffer before
37 	 * other blocks can be read.
38 	 */
39 	relocate_code(CONFIG_SPL_RELOC_STACK, 0, CONFIG_SPL_RELOC_TEXT_BASE);
40 }
41 
42 void board_init_r(gd_t *gd, ulong dest_addr)
43 {
44 	/* Pointer is writable since we allocated a register for it */
45 	gd = (gd_t *)CONFIG_SPL_GD_ADDR;
46 	bd_t *bd;
47 
48 	memset(gd, 0, sizeof(gd_t));
49 	bd = (bd_t *)(CONFIG_SPL_GD_ADDR + sizeof(gd_t));
50 	memset(bd, 0, sizeof(bd_t));
51 	gd->bd = bd;
52 	bd->bi_memstart = CONFIG_SYS_INIT_L2_ADDR;
53 	bd->bi_memsize = CONFIG_SYS_L2_SIZE;
54 
55 	probecpu();
56 	get_clocks();
57 	mem_malloc_init(CONFIG_SPL_RELOC_MALLOC_ADDR,
58 			CONFIG_SPL_RELOC_MALLOC_SIZE);
59 
60 	/* relocate environment function pointers etc. */
61 	nand_spl_load_image(CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE,
62 			    (uchar *)CONFIG_ENV_ADDR);
63 	gd->env_addr  = (ulong)(CONFIG_ENV_ADDR);
64 	gd->env_valid = 1;
65 
66 	i2c_init_all();
67 
68 	gd->ram_size = initdram(0);
69 
70 #ifdef CONFIG_SPL_NAND_BOOT
71 	puts("TPL\n");
72 #else
73 	puts("SPL\n");
74 #endif
75 
76 	nand_boot();
77 }
78