xref: /OK3568_Linux_fs/u-boot/arch/arm/mach-zynq/spl.c (revision 4882a59341e53eb6f0b4789bf948001014eff981) 
1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun  * (C) Copyright 2014 Xilinx, Inc. Michal Simek
3*4882a593Smuzhiyun  *
4*4882a593Smuzhiyun  * SPDX-License-Identifier:	GPL-2.0+
5*4882a593Smuzhiyun  */
6*4882a593Smuzhiyun #include <common.h>
7*4882a593Smuzhiyun #include <debug_uart.h>
8*4882a593Smuzhiyun #include <spl.h>
9*4882a593Smuzhiyun 
10*4882a593Smuzhiyun #include <asm/io.h>
11*4882a593Smuzhiyun #include <asm/spl.h>
12*4882a593Smuzhiyun #include <asm/arch/hardware.h>
13*4882a593Smuzhiyun #include <asm/arch/sys_proto.h>
14*4882a593Smuzhiyun 
15*4882a593Smuzhiyun DECLARE_GLOBAL_DATA_PTR;
16*4882a593Smuzhiyun 
board_init_f(ulong dummy)17*4882a593Smuzhiyun void board_init_f(ulong dummy)
18*4882a593Smuzhiyun {
19*4882a593Smuzhiyun 	ps7_init();
20*4882a593Smuzhiyun 
21*4882a593Smuzhiyun 	arch_cpu_init();
22*4882a593Smuzhiyun 	/*
23*4882a593Smuzhiyun 	 * The debug UART can be used from this point:
24*4882a593Smuzhiyun 	 * debug_uart_init();
25*4882a593Smuzhiyun 	 * printch('x');
26*4882a593Smuzhiyun 	 */
27*4882a593Smuzhiyun }
28*4882a593Smuzhiyun 
29*4882a593Smuzhiyun #ifdef CONFIG_SPL_BOARD_INIT
spl_board_init(void)30*4882a593Smuzhiyun void spl_board_init(void)
31*4882a593Smuzhiyun {
32*4882a593Smuzhiyun 	preloader_console_init();
33*4882a593Smuzhiyun 	board_init();
34*4882a593Smuzhiyun }
35*4882a593Smuzhiyun #endif
36*4882a593Smuzhiyun 
spl_boot_device(void)37*4882a593Smuzhiyun u32 spl_boot_device(void)
38*4882a593Smuzhiyun {
39*4882a593Smuzhiyun 	u32 mode;
40*4882a593Smuzhiyun 
41*4882a593Smuzhiyun 	switch ((zynq_slcr_get_boot_mode()) & ZYNQ_BM_MASK) {
42*4882a593Smuzhiyun #ifdef CONFIG_SPL_SPI_SUPPORT
43*4882a593Smuzhiyun 	case ZYNQ_BM_QSPI:
44*4882a593Smuzhiyun 		puts("qspi boot\n");
45*4882a593Smuzhiyun 		mode = BOOT_DEVICE_SPI;
46*4882a593Smuzhiyun 		break;
47*4882a593Smuzhiyun #endif
48*4882a593Smuzhiyun 	case ZYNQ_BM_NAND:
49*4882a593Smuzhiyun 		mode = BOOT_DEVICE_NAND;
50*4882a593Smuzhiyun 		break;
51*4882a593Smuzhiyun 	case ZYNQ_BM_NOR:
52*4882a593Smuzhiyun 		mode = BOOT_DEVICE_NOR;
53*4882a593Smuzhiyun 		break;
54*4882a593Smuzhiyun #ifdef CONFIG_SPL_MMC_SUPPORT
55*4882a593Smuzhiyun 	case ZYNQ_BM_SD:
56*4882a593Smuzhiyun 		puts("mmc boot\n");
57*4882a593Smuzhiyun 		mode = BOOT_DEVICE_MMC1;
58*4882a593Smuzhiyun 		break;
59*4882a593Smuzhiyun #endif
60*4882a593Smuzhiyun 	case ZYNQ_BM_JTAG:
61*4882a593Smuzhiyun 		mode = BOOT_DEVICE_RAM;
62*4882a593Smuzhiyun 		break;
63*4882a593Smuzhiyun 	default:
64*4882a593Smuzhiyun 		puts("Unsupported boot mode selected\n");
65*4882a593Smuzhiyun 		hang();
66*4882a593Smuzhiyun 	}
67*4882a593Smuzhiyun 
68*4882a593Smuzhiyun 	return mode;
69*4882a593Smuzhiyun }
70*4882a593Smuzhiyun 
71*4882a593Smuzhiyun #ifdef CONFIG_SPL_MMC_SUPPORT
spl_boot_mode(const u32 boot_device)72*4882a593Smuzhiyun u32 spl_boot_mode(const u32 boot_device)
73*4882a593Smuzhiyun {
74*4882a593Smuzhiyun 	return MMCSD_MODE_FS;
75*4882a593Smuzhiyun }
76*4882a593Smuzhiyun #endif
77*4882a593Smuzhiyun 
78*4882a593Smuzhiyun #ifdef CONFIG_SPL_OS_BOOT
spl_start_uboot(void)79*4882a593Smuzhiyun int spl_start_uboot(void)
80*4882a593Smuzhiyun {
81*4882a593Smuzhiyun 	/* boot linux */
82*4882a593Smuzhiyun 	return 0;
83*4882a593Smuzhiyun }
84*4882a593Smuzhiyun #endif
85*4882a593Smuzhiyun 
ps7_init(void)86*4882a593Smuzhiyun __weak void ps7_init(void)
87*4882a593Smuzhiyun {
88*4882a593Smuzhiyun 	/*
89*4882a593Smuzhiyun 	 * This function is overridden by the one in
90*4882a593Smuzhiyun 	 * board/xilinx/zynq/(platform)/ps7_init_gpl.c, if it exists.
91*4882a593Smuzhiyun 	 */
92*4882a593Smuzhiyun }
93*4882a593Smuzhiyun 
ps7_post_config(void)94*4882a593Smuzhiyun __weak int ps7_post_config(void)
95*4882a593Smuzhiyun {
96*4882a593Smuzhiyun 	/*
97*4882a593Smuzhiyun 	 * This function is overridden by the one in
98*4882a593Smuzhiyun 	 * board/xilinx/zynq/(platform)/ps7_init_gpl.c, if it exists.
99*4882a593Smuzhiyun 	 */
100*4882a593Smuzhiyun 	return 0;
101*4882a593Smuzhiyun }
102*4882a593Smuzhiyun 
spl_board_prepare_for_boot(void)103*4882a593Smuzhiyun void spl_board_prepare_for_boot(void)
104*4882a593Smuzhiyun {
105*4882a593Smuzhiyun 	ps7_post_config();
106*4882a593Smuzhiyun 	debug("SPL bye\n");
107*4882a593Smuzhiyun }
108*4882a593Smuzhiyun 
109*4882a593Smuzhiyun #ifdef CONFIG_SPL_LOAD_FIT
board_fit_config_name_match(const char * name)110*4882a593Smuzhiyun int board_fit_config_name_match(const char *name)
111*4882a593Smuzhiyun {
112*4882a593Smuzhiyun 	/* Just empty function now - can't decide what to choose */
113*4882a593Smuzhiyun 	debug("%s: %s\n", __func__, name);
114*4882a593Smuzhiyun 
115*4882a593Smuzhiyun 	return 0;
116*4882a593Smuzhiyun }
117*4882a593Smuzhiyun #endif
118