xref: /openbmc/u-boot/board/freescale/t102xqds/spl.c (revision 894c3ad2)
1 // SPDX-License-Identifier: GPL-2.0+
2 /* Copyright 2014 Freescale Semiconductor, Inc.
3  */
4 
5 #include <common.h>
6 #include <console.h>
7 #include <environment.h>
8 #include <malloc.h>
9 #include <ns16550.h>
10 #include <nand.h>
11 #include <i2c.h>
12 #include <mmc.h>
13 #include <fsl_esdhc.h>
14 #include <spi_flash.h>
15 #include "../common/qixis.h"
16 #include "t102xqds_qixis.h"
17 #include "../common/spl.h"
18 
19 DECLARE_GLOBAL_DATA_PTR;
20 
21 phys_size_t get_effective_memsize(void)
22 {
23 	return CONFIG_SYS_L3_SIZE;
24 }
25 
26 unsigned long get_board_sys_clk(void)
27 {
28 	u8 sysclk_conf = QIXIS_READ(brdcfg[1]);
29 
30 	switch (sysclk_conf & 0x0F) {
31 	case QIXIS_SYSCLK_83:
32 		return 83333333;
33 	case QIXIS_SYSCLK_100:
34 		return 100000000;
35 	case QIXIS_SYSCLK_125:
36 		return 125000000;
37 	case QIXIS_SYSCLK_133:
38 		return 133333333;
39 	case QIXIS_SYSCLK_150:
40 		return 150000000;
41 	case QIXIS_SYSCLK_160:
42 		return 160000000;
43 	case QIXIS_SYSCLK_166:
44 		return 166666666;
45 	}
46 	return 66666666;
47 }
48 
49 unsigned long get_board_ddr_clk(void)
50 {
51 	u8 ddrclk_conf = QIXIS_READ(brdcfg[1]);
52 
53 	switch ((ddrclk_conf & 0x30) >> 4) {
54 	case QIXIS_DDRCLK_100:
55 		return 100000000;
56 	case QIXIS_DDRCLK_125:
57 		return 125000000;
58 	case QIXIS_DDRCLK_133:
59 		return 133333333;
60 	}
61 	return 66666666;
62 }
63 
64 void board_init_f(ulong bootflag)
65 {
66 	u32 plat_ratio, sys_clk, ccb_clk;
67 	ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
68 
69 #if defined(CONFIG_ARCH_T1040) && defined(CONFIG_SPL_NAND_BOOT)
70 	/*
71 	 * There is T1040 SoC issue where NOR, FPGA are inaccessible during
72 	 * NAND boot because IFC signals > IFC_AD7 are not enabled.
73 	 * This workaround changes RCW source to make all signals enabled.
74 	 */
75 	u32 porsr1, pinctl;
76 #define FSL_CORENET_CCSR_PORSR1_RCW_MASK        0xFF800000
77 
78 	porsr1 = in_be32(&gur->porsr1);
79 	pinctl = ((porsr1 & ~(FSL_CORENET_CCSR_PORSR1_RCW_MASK)) | 0x24800000);
80 	out_be32((unsigned int *)(CONFIG_SYS_DCSRBAR + 0x20000), pinctl);
81 #endif
82 
83 	/* Memcpy existing GD at CONFIG_SPL_GD_ADDR */
84 	memcpy((void *)CONFIG_SPL_GD_ADDR, (void *)gd, sizeof(gd_t));
85 
86 	/* Update GD pointer */
87 	gd = (gd_t *)(CONFIG_SPL_GD_ADDR);
88 
89 	console_init_f();
90 
91 	/* initialize selected port with appropriate baud rate */
92 	sys_clk = get_board_sys_clk();
93 	plat_ratio = (in_be32(&gur->rcwsr[0]) >> 25) & 0x1f;
94 	ccb_clk = sys_clk * plat_ratio / 2;
95 
96 	NS16550_init((NS16550_t)CONFIG_SYS_NS16550_COM1,
97 		     ccb_clk / 16 / CONFIG_BAUDRATE);
98 
99 #if defined(CONFIG_SPL_MMC_BOOT)
100 	puts("\nSD boot...\n");
101 #elif defined(CONFIG_SPL_SPI_BOOT)
102 	puts("\nSPI boot...\n");
103 #elif defined(CONFIG_SPL_NAND_BOOT)
104 	puts("\nNAND boot...\n");
105 #endif
106 
107 	relocate_code(CONFIG_SPL_RELOC_STACK, (gd_t *)CONFIG_SPL_GD_ADDR, 0x0);
108 }
109 
110 void board_init_r(gd_t *gd, ulong dest_addr)
111 {
112 	bd_t *bd;
113 
114 	bd = (bd_t *)(gd + sizeof(gd_t));
115 	memset(bd, 0, sizeof(bd_t));
116 	gd->bd = bd;
117 	bd->bi_memstart = CONFIG_SYS_INIT_L3_ADDR;
118 	bd->bi_memsize = CONFIG_SYS_L3_SIZE;
119 
120 	arch_cpu_init();
121 	get_clocks();
122 	mem_malloc_init(CONFIG_SPL_RELOC_MALLOC_ADDR,
123 			CONFIG_SPL_RELOC_MALLOC_SIZE);
124 	gd->flags |= GD_FLG_FULL_MALLOC_INIT;
125 
126 #ifdef CONFIG_SPL_NAND_BOOT
127 	nand_spl_load_image(CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE,
128 			    (uchar *)CONFIG_ENV_ADDR);
129 #endif
130 #ifdef CONFIG_SPL_MMC_BOOT
131 	mmc_initialize(bd);
132 	mmc_spl_load_image(CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE,
133 			   (uchar *)CONFIG_ENV_ADDR);
134 #endif
135 #ifdef CONFIG_SPL_SPI_BOOT
136 	fsl_spi_spl_load_image(CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE,
137 			       (uchar *)CONFIG_ENV_ADDR);
138 #endif
139 
140 	gd->env_addr  = (ulong)(CONFIG_ENV_ADDR);
141 	gd->env_valid = ENV_VALID;
142 
143 	i2c_init_all();
144 
145 	dram_init();
146 
147 #ifdef CONFIG_SPL_MMC_BOOT
148 	mmc_boot();
149 #elif defined(CONFIG_SPL_SPI_BOOT)
150 	fsl_spi_boot();
151 #elif defined(CONFIG_SPL_NAND_BOOT)
152 	nand_boot();
153 #endif
154 }
155