xref: /openbmc/u-boot/board/freescale/t102xqds/spl.c (revision ed4708aa)
1 /* Copyright 2014 Freescale Semiconductor, Inc.
2  *
3  * SPDX-License-Identifier:    GPL-2.0+
4  */
5 
6 #include <common.h>
7 #include <console.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 
18 DECLARE_GLOBAL_DATA_PTR;
19 
20 phys_size_t get_effective_memsize(void)
21 {
22 	return CONFIG_SYS_L3_SIZE;
23 }
24 
25 unsigned long get_board_sys_clk(void)
26 {
27 	u8 sysclk_conf = QIXIS_READ(brdcfg[1]);
28 
29 	switch (sysclk_conf & 0x0F) {
30 	case QIXIS_SYSCLK_83:
31 		return 83333333;
32 	case QIXIS_SYSCLK_100:
33 		return 100000000;
34 	case QIXIS_SYSCLK_125:
35 		return 125000000;
36 	case QIXIS_SYSCLK_133:
37 		return 133333333;
38 	case QIXIS_SYSCLK_150:
39 		return 150000000;
40 	case QIXIS_SYSCLK_160:
41 		return 160000000;
42 	case QIXIS_SYSCLK_166:
43 		return 166666666;
44 	}
45 	return 66666666;
46 }
47 
48 unsigned long get_board_ddr_clk(void)
49 {
50 	u8 ddrclk_conf = QIXIS_READ(brdcfg[1]);
51 
52 	switch ((ddrclk_conf & 0x30) >> 4) {
53 	case QIXIS_DDRCLK_100:
54 		return 100000000;
55 	case QIXIS_DDRCLK_125:
56 		return 125000000;
57 	case QIXIS_DDRCLK_133:
58 		return 133333333;
59 	}
60 	return 66666666;
61 }
62 
63 void board_init_f(ulong bootflag)
64 {
65 	u32 plat_ratio, sys_clk, ccb_clk;
66 	ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
67 
68 #if defined(CONFIG_PPC_T1040) && defined(CONFIG_SPL_NAND_BOOT)
69 	/*
70 	 * There is T1040 SoC issue where NOR, FPGA are inaccessible during
71 	 * NAND boot because IFC signals > IFC_AD7 are not enabled.
72 	 * This workaround changes RCW source to make all signals enabled.
73 	 */
74 	u32 porsr1, pinctl;
75 #define FSL_CORENET_CCSR_PORSR1_RCW_MASK        0xFF800000
76 
77 	porsr1 = in_be32(&gur->porsr1);
78 	pinctl = ((porsr1 & ~(FSL_CORENET_CCSR_PORSR1_RCW_MASK)) | 0x24800000);
79 	out_be32((unsigned int *)(CONFIG_SYS_DCSRBAR + 0x20000), pinctl);
80 #endif
81 
82 	/* Memcpy existing GD at CONFIG_SPL_GD_ADDR */
83 	memcpy((void *)CONFIG_SPL_GD_ADDR, (void *)gd, sizeof(gd_t));
84 
85 	/* Update GD pointer */
86 	gd = (gd_t *)(CONFIG_SPL_GD_ADDR);
87 
88 	console_init_f();
89 
90 	/* initialize selected port with appropriate baud rate */
91 	sys_clk = get_board_sys_clk();
92 	plat_ratio = (in_be32(&gur->rcwsr[0]) >> 25) & 0x1f;
93 	ccb_clk = sys_clk * plat_ratio / 2;
94 
95 	NS16550_init((NS16550_t)CONFIG_SYS_NS16550_COM1,
96 		     ccb_clk / 16 / CONFIG_BAUDRATE);
97 
98 #if defined(CONFIG_SPL_MMC_BOOT)
99 	puts("\nSD boot...\n");
100 #elif defined(CONFIG_SPL_SPI_BOOT)
101 	puts("\nSPI boot...\n");
102 #elif defined(CONFIG_SPL_NAND_BOOT)
103 	puts("\nNAND boot...\n");
104 #endif
105 
106 	relocate_code(CONFIG_SPL_RELOC_STACK, (gd_t *)CONFIG_SPL_GD_ADDR, 0x0);
107 }
108 
109 void board_init_r(gd_t *gd, ulong dest_addr)
110 {
111 	bd_t *bd;
112 
113 	bd = (bd_t *)(gd + sizeof(gd_t));
114 	memset(bd, 0, sizeof(bd_t));
115 	gd->bd = bd;
116 	bd->bi_memstart = CONFIG_SYS_INIT_L3_ADDR;
117 	bd->bi_memsize = CONFIG_SYS_L3_SIZE;
118 
119 	probecpu();
120 	get_clocks();
121 	mem_malloc_init(CONFIG_SPL_RELOC_MALLOC_ADDR,
122 			CONFIG_SPL_RELOC_MALLOC_SIZE);
123 	gd->flags |= GD_FLG_FULL_MALLOC_INIT;
124 
125 #ifdef CONFIG_SPL_NAND_BOOT
126 	nand_spl_load_image(CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE,
127 			    (uchar *)CONFIG_ENV_ADDR);
128 #endif
129 #ifdef CONFIG_SPL_MMC_BOOT
130 	mmc_initialize(bd);
131 	mmc_spl_load_image(CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE,
132 			   (uchar *)CONFIG_ENV_ADDR);
133 #endif
134 #ifdef CONFIG_SPL_SPI_BOOT
135 	spi_spl_load_image(CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE,
136 			   (uchar *)CONFIG_ENV_ADDR);
137 #endif
138 
139 	gd->env_addr  = (ulong)(CONFIG_ENV_ADDR);
140 	gd->env_valid = 1;
141 
142 	i2c_init_all();
143 
144 	gd->ram_size = initdram(0);
145 
146 #ifdef CONFIG_SPL_MMC_BOOT
147 	mmc_boot();
148 #elif defined(CONFIG_SPL_SPI_BOOT)
149 	spi_boot();
150 #elif defined(CONFIG_SPL_NAND_BOOT)
151 	nand_boot();
152 #endif
153 }
154