1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Copyright (C) 2014 Gateworks Corporation
4 * Copyright (C) 2011-2012 Freescale Semiconductor, Inc.
5 *
6 * Author: Tim Harvey <tharvey@gateworks.com>
7 */
8
9 #include <common.h>
10 #include <asm/io.h>
11 #include <asm/arch/imx-regs.h>
12 #include <asm/arch/sys_proto.h>
13 #include <asm/spl.h>
14 #include <spl.h>
15 #include <asm/mach-imx/hab.h>
16 #include <asm/mach-imx/boot_mode.h>
17 #include <g_dnl.h>
18
19 DECLARE_GLOBAL_DATA_PTR;
20
21 #if defined(CONFIG_MX6)
22 /* determine boot device from SRC_SBMR1 (BOOT_CFG[4:1]) or SRC_GPR9 register */
spl_boot_device(void)23 u32 spl_boot_device(void)
24 {
25 unsigned int bmode = readl(&src_base->sbmr2);
26 u32 reg = imx6_src_get_boot_mode();
27
28 /*
29 * Check for BMODE if serial downloader is enabled
30 * BOOT_MODE - see IMX6DQRM Table 8-1
31 */
32 if (((bmode >> 24) & 0x03) == 0x01) /* Serial Downloader */
33 return BOOT_DEVICE_BOARD;
34
35 /*
36 * The above method does not detect that the boot ROM used
37 * serial downloader in case the boot ROM decided to use the
38 * serial downloader as a fall back (primary boot source failed).
39 *
40 * Infer that the boot ROM used the USB serial downloader by
41 * checking whether the USB PHY is currently active... This
42 * assumes that SPL did not (yet) initialize the USB PHY...
43 */
44 if (is_usbotg_phy_active())
45 return BOOT_DEVICE_BOARD;
46
47 /* BOOT_CFG1[7:4] - see IMX6DQRM Table 8-8 */
48 switch ((reg & IMX6_BMODE_MASK) >> IMX6_BMODE_SHIFT) {
49 /* EIM: See 8.5.1, Table 8-9 */
50 case IMX6_BMODE_EMI:
51 /* BOOT_CFG1[3]: NOR/OneNAND Selection */
52 switch ((reg & IMX6_BMODE_EMI_MASK) >> IMX6_BMODE_EMI_SHIFT) {
53 case IMX6_BMODE_ONENAND:
54 return BOOT_DEVICE_ONENAND;
55 case IMX6_BMODE_NOR:
56 return BOOT_DEVICE_NOR;
57 break;
58 }
59 /* Reserved: Used to force Serial Downloader */
60 case IMX6_BMODE_RESERVED:
61 return BOOT_DEVICE_BOARD;
62 /* SATA: See 8.5.4, Table 8-20 */
63 #if !defined(CONFIG_MX6UL) && !defined(CONFIG_MX6ULL)
64 case IMX6_BMODE_SATA:
65 return BOOT_DEVICE_SATA;
66 #endif
67 /* Serial ROM: See 8.5.5.1, Table 8-22 */
68 case IMX6_BMODE_SERIAL_ROM:
69 /* BOOT_CFG4[2:0] */
70 switch ((reg & IMX6_BMODE_SERIAL_ROM_MASK) >>
71 IMX6_BMODE_SERIAL_ROM_SHIFT) {
72 case IMX6_BMODE_ECSPI1:
73 case IMX6_BMODE_ECSPI2:
74 case IMX6_BMODE_ECSPI3:
75 case IMX6_BMODE_ECSPI4:
76 case IMX6_BMODE_ECSPI5:
77 return BOOT_DEVICE_SPI;
78 case IMX6_BMODE_I2C1:
79 case IMX6_BMODE_I2C2:
80 case IMX6_BMODE_I2C3:
81 return BOOT_DEVICE_I2C;
82 }
83 break;
84 /* SD/eSD: 8.5.3, Table 8-15 */
85 case IMX6_BMODE_SD:
86 case IMX6_BMODE_ESD:
87 return BOOT_DEVICE_MMC1;
88 /* MMC/eMMC: 8.5.3 */
89 case IMX6_BMODE_MMC:
90 case IMX6_BMODE_EMMC:
91 return BOOT_DEVICE_MMC1;
92 /* NAND Flash: 8.5.2, Table 8-10 */
93 case IMX6_BMODE_NAND_MIN ... IMX6_BMODE_NAND_MAX:
94 return BOOT_DEVICE_NAND;
95 }
96 return BOOT_DEVICE_NONE;
97 }
98
99 #elif defined(CONFIG_MX7) || defined(CONFIG_MX8M)
100 /* Translate iMX7/MX8M boot device to the SPL boot device enumeration */
spl_boot_device(void)101 u32 spl_boot_device(void)
102 {
103 #if defined(CONFIG_MX7)
104 unsigned int bmode = readl(&src_base->sbmr2);
105
106 /*
107 * Check for BMODE if serial downloader is enabled
108 * BOOT_MODE - see IMX7DRM Table 6-24
109 */
110 if (((bmode >> 24) & 0x03) == 0x01) /* Serial Downloader */
111 return BOOT_DEVICE_BOARD;
112
113 /*
114 * The above method does not detect that the boot ROM used
115 * serial downloader in case the boot ROM decided to use the
116 * serial downloader as a fall back (primary boot source failed).
117 *
118 * Infer that the boot ROM used the USB serial downloader by
119 * checking whether the USB PHY is currently active... This
120 * assumes that SPL did not (yet) initialize the USB PHY...
121 */
122 if (is_boot_from_usb())
123 return BOOT_DEVICE_BOARD;
124 #endif
125
126 enum boot_device boot_device_spl = get_boot_device();
127
128 switch (boot_device_spl) {
129 case SD1_BOOT:
130 case MMC1_BOOT:
131 case SD2_BOOT:
132 case MMC2_BOOT:
133 case SD3_BOOT:
134 case MMC3_BOOT:
135 return BOOT_DEVICE_MMC1;
136 case NAND_BOOT:
137 return BOOT_DEVICE_NAND;
138 case SPI_NOR_BOOT:
139 return BOOT_DEVICE_SPI;
140 case USB_BOOT:
141 return BOOT_DEVICE_USB;
142 default:
143 return BOOT_DEVICE_NONE;
144 }
145 }
146 #endif /* CONFIG_MX6 || CONFIG_MX7 || CONFIG_MX8M */
147
148 #ifdef CONFIG_SPL_USB_GADGET_SUPPORT
g_dnl_bind_fixup(struct usb_device_descriptor * dev,const char * name)149 int g_dnl_bind_fixup(struct usb_device_descriptor *dev, const char *name)
150 {
151 put_unaligned(CONFIG_USB_GADGET_PRODUCT_NUM + 0xfff, &dev->idProduct);
152
153 return 0;
154 }
155 #endif
156
157 #if defined(CONFIG_SPL_MMC_SUPPORT)
158 /* called from spl_mmc to see type of boot mode for storage (RAW or FAT) */
spl_boot_mode(const u32 boot_device)159 u32 spl_boot_mode(const u32 boot_device)
160 {
161 switch (spl_boot_device()) {
162 /* for MMC return either RAW or FAT mode */
163 case BOOT_DEVICE_MMC1:
164 case BOOT_DEVICE_MMC2:
165 #if defined(CONFIG_SPL_FAT_SUPPORT)
166 return MMCSD_MODE_FS;
167 #elif defined(CONFIG_SUPPORT_EMMC_BOOT)
168 return MMCSD_MODE_EMMCBOOT;
169 #else
170 return MMCSD_MODE_RAW;
171 #endif
172 break;
173 default:
174 puts("spl: ERROR: unsupported device\n");
175 hang();
176 }
177 }
178 #endif
179
180 #if defined(CONFIG_SECURE_BOOT)
181
182 /*
183 * +------------+ 0x0 (DDR_UIMAGE_START) -
184 * | Header | |
185 * +------------+ 0x40 |
186 * | | |
187 * | | |
188 * | | |
189 * | | |
190 * | Image Data | |
191 * . | |
192 * . | > Stuff to be authenticated ----+
193 * . | | |
194 * | | | |
195 * | | | |
196 * +------------+ | |
197 * | | | |
198 * | Fill Data | | |
199 * | | | |
200 * +------------+ Align to ALIGN_SIZE | |
201 * | IVT | | |
202 * +------------+ + IVT_SIZE - |
203 * | | |
204 * | CSF DATA | <---------------------------------------------------------+
205 * | |
206 * +------------+
207 * | |
208 * | Fill Data |
209 * | |
210 * +------------+ + CSF_PAD_SIZE
211 */
212
jump_to_image_no_args(struct spl_image_info * spl_image)213 __weak void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image)
214 {
215 typedef void __noreturn (*image_entry_noargs_t)(void);
216 uint32_t offset;
217
218 image_entry_noargs_t image_entry =
219 (image_entry_noargs_t)(unsigned long)spl_image->entry_point;
220
221 debug("image entry point: 0x%lX\n", spl_image->entry_point);
222
223 /* HAB looks for the CSF at the end of the authenticated data therefore,
224 * we need to subtract the size of the CSF from the actual filesize */
225 offset = spl_image->size - CONFIG_CSF_SIZE;
226 if (!imx_hab_authenticate_image(spl_image->load_addr,
227 offset + IVT_SIZE + CSF_PAD_SIZE,
228 offset)) {
229 image_entry();
230 } else {
231 puts("spl: ERROR: image authentication unsuccessful\n");
232 hang();
233 }
234 }
235
236 #endif
237
238 #if defined(CONFIG_MX6) && defined(CONFIG_SPL_OS_BOOT)
dram_init_banksize(void)239 int dram_init_banksize(void)
240 {
241 gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
242 gd->bd->bi_dram[0].size = imx_ddr_size();
243
244 return 0;
245 }
246 #endif
247