xref: /openbmc/u-boot/board/freescale/p1010rdb/spl.c (revision d9b88d25)
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 #include "../common/spl.h"
16 
17 DECLARE_GLOBAL_DATA_PTR;
18 
19 phys_size_t get_effective_memsize(void)
20 {
21 	return CONFIG_SYS_L2_SIZE;
22 }
23 
24 void board_init_f(ulong bootflag)
25 {
26 	u32 plat_ratio;
27 	ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
28 	struct fsl_ifc ifc = {(void *)CONFIG_SYS_IFC_ADDR, (void *)NULL};
29 
30 	console_init_f();
31 
32 	/* Clock configuration to access CPLD using IFC(GPCM) */
33 	setbits_be32(&ifc.gregs->ifc_gcr, 1 << IFC_GCR_TBCTL_TRN_TIME_SHIFT);
34 
35 #ifdef CONFIG_TARGET_P1010RDB_PB
36 	setbits_be32(&gur->pmuxcr2, MPC85xx_PMUXCR2_GPIO01_DRVVBUS);
37 #endif
38 
39 	/* initialize selected port with appropriate baud rate */
40 	plat_ratio = in_be32(&gur->porpllsr) & MPC85xx_PORPLLSR_PLAT_RATIO;
41 	plat_ratio >>= 1;
42 	gd->bus_clk = CONFIG_SYS_CLK_FREQ * plat_ratio;
43 
44 	NS16550_init((NS16550_t)CONFIG_SYS_NS16550_COM1,
45 		     gd->bus_clk / 16 / CONFIG_BAUDRATE);
46 
47 #ifdef CONFIG_SPL_MMC_BOOT
48 	puts("\nSD boot...\n");
49 #elif defined(CONFIG_SPL_SPI_BOOT)
50 	puts("\nSPI Flash boot...\n");
51 #endif
52 	/* copy code to RAM and jump to it - this should not return */
53 	/* NOTE - code has to be copied out of NAND buffer before
54 	 * other blocks can be read.
55 	*/
56 	relocate_code(CONFIG_SPL_RELOC_STACK, 0, CONFIG_SPL_RELOC_TEXT_BASE);
57 }
58 
59 void board_init_r(gd_t *gd, ulong dest_addr)
60 {
61 	/* Pointer is writable since we allocated a register for it */
62 	gd = (gd_t *)CONFIG_SPL_GD_ADDR;
63 	bd_t *bd;
64 
65 	memset(gd, 0, sizeof(gd_t));
66 	bd = (bd_t *)(CONFIG_SPL_GD_ADDR + sizeof(gd_t));
67 	memset(bd, 0, sizeof(bd_t));
68 	gd->bd = bd;
69 	bd->bi_memstart = CONFIG_SYS_INIT_L2_ADDR;
70 	bd->bi_memsize = CONFIG_SYS_L2_SIZE;
71 
72 	arch_cpu_init();
73 	get_clocks();
74 	mem_malloc_init(CONFIG_SPL_RELOC_MALLOC_ADDR,
75 			CONFIG_SPL_RELOC_MALLOC_SIZE);
76 	gd->flags |= GD_FLG_FULL_MALLOC_INIT;
77 
78 #ifndef CONFIG_SPL_NAND_BOOT
79 	env_init();
80 #endif
81 #ifdef CONFIG_SPL_MMC_BOOT
82 	mmc_initialize(bd);
83 #endif
84 
85 	/* relocate environment function pointers etc. */
86 #ifdef CONFIG_SPL_NAND_BOOT
87 	nand_spl_load_image(CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE,
88 			    (uchar *)CONFIG_ENV_ADDR);
89 			    gd->env_addr  = (ulong)(CONFIG_ENV_ADDR);
90 	gd->env_valid = 1;
91 #else
92 	env_relocate();
93 #endif
94 
95 	i2c_init_all();
96 
97 	gd->ram_size = initdram(0);
98 #ifdef CONFIG_SPL_NAND_BOOT
99 	puts("\nTertiary program loader running in sram...");
100 #else
101 	puts("\nSecond program loader running in sram...");
102 #endif
103 
104 #ifdef CONFIG_SPL_MMC_BOOT
105 	mmc_boot();
106 #elif defined(CONFIG_SPL_SPI_BOOT)
107 	fsl_spi_boot();
108 #elif defined(CONFIG_SPL_NAND_BOOT)
109 	nand_boot();
110 #endif
111 }
112