xref: /openbmc/u-boot/board/freescale/p1010rdb/spl.c (revision 23ff8633)
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 #include <fsl_esdhc.h>
14 #include <spi_flash.h>
15 
16 DECLARE_GLOBAL_DATA_PTR;
17 
18 phys_size_t get_effective_memsize(void)
19 {
20 	return CONFIG_SYS_L2_SIZE;
21 }
22 
23 void board_init_f(ulong bootflag)
24 {
25 	u32 plat_ratio;
26 	ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
27 	struct fsl_ifc ifc = {(void *)CONFIG_SYS_IFC_ADDR, (void *)NULL};
28 
29 	console_init_f();
30 
31 	/* Clock configuration to access CPLD using IFC(GPCM) */
32 	setbits_be32(&ifc.gregs->ifc_gcr, 1 << IFC_GCR_TBCTL_TRN_TIME_SHIFT);
33 
34 #ifdef CONFIG_P1010RDB_PB
35 	setbits_be32(&gur->pmuxcr2, MPC85xx_PMUXCR2_GPIO01_DRVVBUS);
36 #endif
37 
38 	/* initialize selected port with appropriate baud rate */
39 	plat_ratio = in_be32(&gur->porpllsr) & MPC85xx_PORPLLSR_PLAT_RATIO;
40 	plat_ratio >>= 1;
41 	gd->bus_clk = CONFIG_SYS_CLK_FREQ * plat_ratio;
42 
43 	NS16550_init((NS16550_t)CONFIG_SYS_NS16550_COM1,
44 		     gd->bus_clk / 16 / CONFIG_BAUDRATE);
45 
46 #ifdef CONFIG_SPL_MMC_BOOT
47 	puts("\nSD boot...\n");
48 #elif defined(CONFIG_SPL_SPI_BOOT)
49 	puts("\nSPI Flash boot...\n");
50 #endif
51 	/* copy code to RAM and jump to it - this should not return */
52 	/* NOTE - code has to be copied out of NAND buffer before
53 	 * other blocks can be read.
54 	*/
55 	relocate_code(CONFIG_SPL_RELOC_STACK, 0, CONFIG_SPL_RELOC_TEXT_BASE);
56 }
57 
58 void board_init_r(gd_t *gd, ulong dest_addr)
59 {
60 	/* Pointer is writable since we allocated a register for it */
61 	gd = (gd_t *)CONFIG_SPL_GD_ADDR;
62 	bd_t *bd;
63 
64 	memset(gd, 0, sizeof(gd_t));
65 	bd = (bd_t *)(CONFIG_SPL_GD_ADDR + sizeof(gd_t));
66 	memset(bd, 0, sizeof(bd_t));
67 	gd->bd = bd;
68 	bd->bi_memstart = CONFIG_SYS_INIT_L2_ADDR;
69 	bd->bi_memsize = CONFIG_SYS_L2_SIZE;
70 
71 	probecpu();
72 	get_clocks();
73 	mem_malloc_init(CONFIG_SPL_RELOC_MALLOC_ADDR,
74 			CONFIG_SPL_RELOC_MALLOC_SIZE);
75 
76 #ifndef CONFIG_SPL_NAND_BOOT
77 	env_init();
78 #endif
79 #ifdef CONFIG_SPL_MMC_BOOT
80 	mmc_initialize(bd);
81 #endif
82 
83 	/* relocate environment function pointers etc. */
84 #ifdef CONFIG_SPL_NAND_BOOT
85 	nand_spl_load_image(CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE,
86 			    (uchar *)CONFIG_ENV_ADDR);
87 			    gd->env_addr  = (ulong)(CONFIG_ENV_ADDR);
88 	gd->env_valid = 1;
89 #else
90 	env_relocate();
91 #endif
92 
93 	i2c_init_all();
94 
95 	gd->ram_size = initdram(0);
96 #ifdef CONFIG_SPL_NAND_BOOT
97 	puts("\nTertiary program loader running in sram...");
98 #else
99 	puts("\nSecond program loader running in sram...");
100 #endif
101 
102 #ifdef CONFIG_SPL_MMC_BOOT
103 	mmc_boot();
104 #elif defined(CONFIG_SPL_SPI_BOOT)
105 	spi_boot();
106 #elif defined(CONFIG_SPL_NAND_BOOT)
107 	nand_boot();
108 #endif
109 }
110