xref: /openbmc/u-boot/board/freescale/p1010rdb/spl.c (revision 752a0b08)
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 #include <fsl_esdhc.h>
13 #include <spi_flash.h>
14 
15 DECLARE_GLOBAL_DATA_PTR;
16 
17 phys_size_t get_effective_memsize(void)
18 {
19 	return CONFIG_SYS_L2_SIZE;
20 }
21 
22 void board_init_f(ulong bootflag)
23 {
24 	u32 plat_ratio;
25 	ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
26 	struct fsl_ifc *ifc = (void *)CONFIG_SYS_IFC_ADDR;
27 
28 	console_init_f();
29 
30 	/* Clock configuration to access CPLD using IFC(GPCM) */
31 	setbits_be32(&ifc->ifc_gcr, 1 << IFC_GCR_TBCTL_TRN_TIME_SHIFT);
32 
33 #ifdef CONFIG_P1010RDB_PB
34 	setbits_be32(&gur->pmuxcr2, MPC85xx_PMUXCR2_GPIO01_DRVVBUS);
35 #endif
36 
37 	/* initialize selected port with appropriate baud rate */
38 	plat_ratio = in_be32(&gur->porpllsr) & MPC85xx_PORPLLSR_PLAT_RATIO;
39 	plat_ratio >>= 1;
40 	gd->bus_clk = CONFIG_SYS_CLK_FREQ * plat_ratio;
41 
42 	NS16550_init((NS16550_t)CONFIG_SYS_NS16550_COM1,
43 		     gd->bus_clk / 16 / CONFIG_BAUDRATE);
44 
45 #ifdef CONFIG_SPL_MMC_BOOT
46 	puts("\nSD boot...\n");
47 #elif defined(CONFIG_SPL_SPI_BOOT)
48 	puts("\nSPI Flash boot...\n");
49 #endif
50 	/* copy code to RAM and jump to it - this should not return */
51 	/* NOTE - code has to be copied out of NAND buffer before
52 	 * other blocks can be read.
53 	*/
54 	relocate_code(CONFIG_SPL_RELOC_STACK, 0, CONFIG_SPL_RELOC_TEXT_BASE);
55 }
56 
57 void board_init_r(gd_t *gd, ulong dest_addr)
58 {
59 	/* Pointer is writable since we allocated a register for it */
60 	gd = (gd_t *)CONFIG_SPL_GD_ADDR;
61 	bd_t *bd;
62 
63 	memset(gd, 0, sizeof(gd_t));
64 	bd = (bd_t *)(CONFIG_SPL_GD_ADDR + sizeof(gd_t));
65 	memset(bd, 0, sizeof(bd_t));
66 	gd->bd = bd;
67 	bd->bi_memstart = CONFIG_SYS_INIT_L2_ADDR;
68 	bd->bi_memsize = CONFIG_SYS_L2_SIZE;
69 
70 	probecpu();
71 	get_clocks();
72 	mem_malloc_init(CONFIG_SPL_RELOC_MALLOC_ADDR,
73 			CONFIG_SPL_RELOC_MALLOC_SIZE);
74 
75 #ifndef CONFIG_SPL_NAND_BOOT
76 	env_init();
77 #endif
78 #ifdef CONFIG_SPL_MMC_BOOT
79 	mmc_initialize(bd);
80 #endif
81 
82 	/* relocate environment function pointers etc. */
83 #ifdef CONFIG_SPL_NAND_BOOT
84 	nand_spl_load_image(CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE,
85 			    (uchar *)CONFIG_ENV_ADDR);
86 			    gd->env_addr  = (ulong)(CONFIG_ENV_ADDR);
87 	gd->env_valid = 1;
88 #else
89 	env_relocate();
90 #endif
91 
92 	i2c_init_all();
93 
94 	gd->ram_size = initdram(0);
95 #ifdef CONFIG_SPL_NAND_BOOT
96 	puts("\nTertiary program loader running in sram...");
97 #else
98 	puts("\nSecond program loader running in sram...");
99 #endif
100 
101 #ifdef CONFIG_SPL_MMC_BOOT
102 	mmc_boot();
103 #elif defined(CONFIG_SPL_SPI_BOOT)
104 	spi_boot();
105 #elif defined(CONFIG_SPL_NAND_BOOT)
106 	nand_boot();
107 #endif
108 }
109