xref: /openbmc/u-boot/board/freescale/p1010rdb/spl.c (revision b7ca56dc)
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 <environment.h>
9 #include <ns16550.h>
10 #include <malloc.h>
11 #include <mmc.h>
12 #include <nand.h>
13 #include <i2c.h>
14 #include <fsl_esdhc.h>
15 #include <spi_flash.h>
16 #include "../common/spl.h"
17 
18 DECLARE_GLOBAL_DATA_PTR;
19 
20 phys_size_t get_effective_memsize(void)
21 {
22 	return CONFIG_SYS_L2_SIZE;
23 }
24 
25 void board_init_f(ulong bootflag)
26 {
27 	u32 plat_ratio;
28 	ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
29 	struct fsl_ifc ifc = {(void *)CONFIG_SYS_IFC_ADDR, (void *)NULL};
30 
31 	console_init_f();
32 
33 	/* Clock configuration to access CPLD using IFC(GPCM) */
34 	setbits_be32(&ifc.gregs->ifc_gcr, 1 << IFC_GCR_TBCTL_TRN_TIME_SHIFT);
35 
36 #ifdef CONFIG_TARGET_P1010RDB_PB
37 	setbits_be32(&gur->pmuxcr2, MPC85xx_PMUXCR2_GPIO01_DRVVBUS);
38 #endif
39 
40 	/* initialize selected port with appropriate baud rate */
41 	plat_ratio = in_be32(&gur->porpllsr) & MPC85xx_PORPLLSR_PLAT_RATIO;
42 	plat_ratio >>= 1;
43 	gd->bus_clk = CONFIG_SYS_CLK_FREQ * plat_ratio;
44 
45 	NS16550_init((NS16550_t)CONFIG_SYS_NS16550_COM1,
46 		     gd->bus_clk / 16 / CONFIG_BAUDRATE);
47 
48 #ifdef CONFIG_SPL_MMC_BOOT
49 	puts("\nSD boot...\n");
50 #elif defined(CONFIG_SPL_SPI_BOOT)
51 	puts("\nSPI Flash boot...\n");
52 #endif
53 	/* copy code to RAM and jump to it - this should not return */
54 	/* NOTE - code has to be copied out of NAND buffer before
55 	 * other blocks can be read.
56 	*/
57 	relocate_code(CONFIG_SPL_RELOC_STACK, 0, CONFIG_SPL_RELOC_TEXT_BASE);
58 }
59 
60 void board_init_r(gd_t *gd, ulong dest_addr)
61 {
62 	/* Pointer is writable since we allocated a register for it */
63 	gd = (gd_t *)CONFIG_SPL_GD_ADDR;
64 	bd_t *bd;
65 
66 	memset(gd, 0, sizeof(gd_t));
67 	bd = (bd_t *)(CONFIG_SPL_GD_ADDR + sizeof(gd_t));
68 	memset(bd, 0, sizeof(bd_t));
69 	gd->bd = bd;
70 	bd->bi_memstart = CONFIG_SYS_INIT_L2_ADDR;
71 	bd->bi_memsize = CONFIG_SYS_L2_SIZE;
72 
73 	arch_cpu_init();
74 	get_clocks();
75 	mem_malloc_init(CONFIG_SPL_RELOC_MALLOC_ADDR,
76 			CONFIG_SPL_RELOC_MALLOC_SIZE);
77 	gd->flags |= GD_FLG_FULL_MALLOC_INIT;
78 
79 #ifndef CONFIG_SPL_NAND_BOOT
80 	env_init();
81 #endif
82 #ifdef CONFIG_SPL_MMC_BOOT
83 	mmc_initialize(bd);
84 #endif
85 
86 	/* relocate environment function pointers etc. */
87 #ifdef CONFIG_SPL_NAND_BOOT
88 	nand_spl_load_image(CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE,
89 			    (uchar *)CONFIG_ENV_ADDR);
90 			    gd->env_addr  = (ulong)(CONFIG_ENV_ADDR);
91 	gd->env_valid = ENV_VALID;
92 #else
93 	env_relocate();
94 #endif
95 
96 	i2c_init_all();
97 
98 	dram_init();
99 #ifdef CONFIG_SPL_NAND_BOOT
100 	puts("\nTertiary program loader running in sram...");
101 #else
102 	puts("\nSecond program loader running in sram...");
103 #endif
104 
105 #ifdef CONFIG_SPL_MMC_BOOT
106 	mmc_boot();
107 #elif defined(CONFIG_SPL_SPI_BOOT)
108 	fsl_spi_boot();
109 #elif defined(CONFIG_SPL_NAND_BOOT)
110 	nand_boot();
111 #endif
112 }
113