xref: /openbmc/u-boot/board/freescale/t104xrdb/spl.c (revision 3e972cb9)
1 /* Copyright 2013 Freescale Semiconductor, Inc.
2  *
3  * SPDX-License-Identifier:    GPL-2.0+
4  */
5 
6 #include <common.h>
7 #include <malloc.h>
8 #include <ns16550.h>
9 #include <nand.h>
10 #include <i2c.h>
11 #include <mmc.h>
12 #include <fsl_esdhc.h>
13 #include <spi_flash.h>
14 #include <asm/mpc85xx_gpio.h>
15 
16 DECLARE_GLOBAL_DATA_PTR;
17 
18 phys_size_t get_effective_memsize(void)
19 {
20 	return CONFIG_SYS_L3_SIZE;
21 }
22 
23 unsigned long get_board_sys_clk(void)
24 {
25 	return CONFIG_SYS_CLK_FREQ;
26 }
27 
28 unsigned long get_board_ddr_clk(void)
29 {
30 	return CONFIG_DDR_CLK_FREQ;
31 }
32 
33 #define FSL_CORENET_CCSR_PORSR1_RCW_MASK	0xFF800000
34 void board_init_f(ulong bootflag)
35 {
36 	u32 plat_ratio, sys_clk, uart_clk;
37 #ifdef CONFIG_SPL_NAND_BOOT
38 	u32 porsr1, pinctl;
39 #endif
40 	ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
41 
42 #ifdef CONFIG_SPL_NAND_BOOT
43 	/*
44 	 * There is T1040 SoC issue where NOR, FPGA are inaccessible during
45 	 * NAND boot because IFC signals > IFC_AD7 are not enabled.
46 	 * This workaround changes RCW source to make all signals enabled.
47 	 */
48 	porsr1 = in_be32(&gur->porsr1);
49 	pinctl = ((porsr1 & ~(FSL_CORENET_CCSR_PORSR1_RCW_MASK)) | 0x24800000);
50 	out_be32((unsigned int *)(CONFIG_SYS_DCSRBAR + 0x20000), pinctl);
51 #endif
52 
53 	/* Memcpy existing GD at CONFIG_SPL_GD_ADDR */
54 	memcpy((void *)CONFIG_SPL_GD_ADDR, (void *)gd, sizeof(gd_t));
55 
56 	/* Update GD pointer */
57 	gd = (gd_t *)(CONFIG_SPL_GD_ADDR);
58 
59 #ifdef CONFIG_DEEP_SLEEP
60 	/* disable the console if boot from deep sleep */
61 	if (in_be32(&gur->scrtsr[0]) & (1 << 3))
62 		gd->flags |= GD_FLG_SILENT | GD_FLG_DISABLE_CONSOLE;
63 #endif
64 	/* compiler optimization barrier needed for GCC >= 3.4 */
65 	__asm__ __volatile__("" : : : "memory");
66 
67 	console_init_f();
68 
69 	/* initialize selected port with appropriate baud rate */
70 	sys_clk = get_board_sys_clk();
71 	plat_ratio = (in_be32(&gur->rcwsr[0]) >> 25) & 0x1f;
72 	uart_clk = sys_clk * plat_ratio / 2;
73 
74 	NS16550_init((NS16550_t)CONFIG_SYS_NS16550_COM1,
75 		     uart_clk / 16 / CONFIG_BAUDRATE);
76 
77 	relocate_code(CONFIG_SPL_RELOC_STACK, (gd_t *)CONFIG_SPL_GD_ADDR, 0x0);
78 }
79 
80 void board_init_r(gd_t *gd, ulong dest_addr)
81 {
82 	bd_t *bd;
83 
84 	bd = (bd_t *)(gd + sizeof(gd_t));
85 	memset(bd, 0, sizeof(bd_t));
86 	gd->bd = bd;
87 	bd->bi_memstart = CONFIG_SYS_INIT_L3_ADDR;
88 	bd->bi_memsize = CONFIG_SYS_L3_SIZE;
89 
90 	probecpu();
91 	get_clocks();
92 	mem_malloc_init(CONFIG_SPL_RELOC_MALLOC_ADDR,
93 			CONFIG_SPL_RELOC_MALLOC_SIZE);
94 
95 #ifdef CONFIG_SPL_MMC_BOOT
96 	mmc_initialize(bd);
97 #endif
98 
99 	/* relocate environment function pointers etc. */
100 #ifdef CONFIG_SPL_NAND_BOOT
101 	nand_spl_load_image(CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE,
102 			    (uchar *)CONFIG_ENV_ADDR);
103 #endif
104 #ifdef CONFIG_SPL_MMC_BOOT
105 	mmc_spl_load_image(CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE,
106 			   (uchar *)CONFIG_ENV_ADDR);
107 #endif
108 #ifdef CONFIG_SPL_SPI_BOOT
109 	spi_spl_load_image(CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE,
110 			   (uchar *)CONFIG_ENV_ADDR);
111 #endif
112 	gd->env_addr  = (ulong)(CONFIG_ENV_ADDR);
113 	gd->env_valid = 1;
114 
115 	i2c_init_all();
116 
117 	puts("\n\n");
118 
119 	gd->ram_size = initdram(0);
120 
121 #ifdef CONFIG_SPL_MMC_BOOT
122 	mmc_boot();
123 #elif defined(CONFIG_SPL_SPI_BOOT)
124 	spi_boot();
125 #elif defined(CONFIG_SPL_NAND_BOOT)
126 	nand_boot();
127 #endif
128 }
129 
130 #ifdef CONFIG_DEEP_SLEEP
131 void board_mem_sleep_setup(void)
132 {
133 	void __iomem *cpld_base = (void *)CONFIG_SYS_CPLD_BASE;
134 
135 	/* does not provide HW signals for power management */
136 	clrbits_8(cpld_base + 0x17, 0x40);
137 	/* Disable MCKE isolation */
138 	gpio_set_value(2, 0);
139 	udelay(1);
140 }
141 #endif
142