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_IMX8M) || defined(CONFIG_IMX8)
100 /* Translate iMX7/i.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 #if defined(CONFIG_MX7)
130 case SD1_BOOT:
131 case MMC1_BOOT:
132 case SD2_BOOT:
133 case MMC2_BOOT:
134 case SD3_BOOT:
135 case MMC3_BOOT:
136 return BOOT_DEVICE_MMC1;
137 #elif defined(CONFIG_IMX8)
138 case MMC1_BOOT:
139 return BOOT_DEVICE_MMC1;
140 case SD2_BOOT:
141 return BOOT_DEVICE_MMC2_2;
142 case SD3_BOOT:
143 return BOOT_DEVICE_MMC1;
144 case FLEXSPI_BOOT:
145 return BOOT_DEVICE_SPI;
146 #elif defined(CONFIG_IMX8M)
147 case SD1_BOOT:
148 case MMC1_BOOT:
149 return BOOT_DEVICE_MMC1;
150 case SD2_BOOT:
151 case MMC2_BOOT:
152 return BOOT_DEVICE_MMC2;
153 #endif
154 case NAND_BOOT:
155 return BOOT_DEVICE_NAND;
156 case SPI_NOR_BOOT:
157 return BOOT_DEVICE_SPI;
158 case USB_BOOT:
159 return BOOT_DEVICE_USB;
160 default:
161 return BOOT_DEVICE_NONE;
162 }
163 }
164 #endif /* CONFIG_MX7 || CONFIG_IMX8M || CONFIG_IMX8 */
165
166 #ifdef CONFIG_SPL_USB_GADGET
g_dnl_bind_fixup(struct usb_device_descriptor * dev,const char * name)167 int g_dnl_bind_fixup(struct usb_device_descriptor *dev, const char *name)
168 {
169 put_unaligned(CONFIG_USB_GADGET_PRODUCT_NUM + 0xfff, &dev->idProduct);
170
171 return 0;
172 }
173 #endif
174
175 #if defined(CONFIG_SPL_MMC_SUPPORT)
176 /* called from spl_mmc to see type of boot mode for storage (RAW or FAT) */
spl_boot_mode(const u32 boot_device)177 u32 spl_boot_mode(const u32 boot_device)
178 {
179 switch (spl_boot_device()) {
180 /* for MMC return either RAW or FAT mode */
181 case BOOT_DEVICE_MMC1:
182 case BOOT_DEVICE_MMC2:
183 case BOOT_DEVICE_MMC2_2:
184 #if defined(CONFIG_SPL_FS_FAT)
185 return MMCSD_MODE_FS;
186 #elif defined(CONFIG_SUPPORT_EMMC_BOOT)
187 return MMCSD_MODE_EMMCBOOT;
188 #else
189 return MMCSD_MODE_RAW;
190 #endif
191 break;
192 default:
193 puts("spl: ERROR: unsupported device\n");
194 hang();
195 }
196 }
197 #endif
198
199 #if defined(CONFIG_SECURE_BOOT)
200
201 /*
202 * +------------+ 0x0 (DDR_UIMAGE_START) -
203 * | Header | |
204 * +------------+ 0x40 |
205 * | | |
206 * | | |
207 * | | |
208 * | | |
209 * | Image Data | |
210 * . | |
211 * . | > Stuff to be authenticated ----+
212 * . | | |
213 * | | | |
214 * | | | |
215 * +------------+ | |
216 * | | | |
217 * | Fill Data | | |
218 * | | | |
219 * +------------+ Align to ALIGN_SIZE | |
220 * | IVT | | |
221 * +------------+ + IVT_SIZE - |
222 * | | |
223 * | CSF DATA | <---------------------------------------------------------+
224 * | |
225 * +------------+
226 * | |
227 * | Fill Data |
228 * | |
229 * +------------+ + CSF_PAD_SIZE
230 */
231
jump_to_image_no_args(struct spl_image_info * spl_image)232 __weak void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image)
233 {
234 typedef void __noreturn (*image_entry_noargs_t)(void);
235 uint32_t offset;
236
237 image_entry_noargs_t image_entry =
238 (image_entry_noargs_t)(unsigned long)spl_image->entry_point;
239
240 debug("image entry point: 0x%lX\n", spl_image->entry_point);
241
242 if (spl_image->flags & SPL_FIT_FOUND) {
243 image_entry();
244 } else {
245 /*
246 * HAB looks for the CSF at the end of the authenticated
247 * data therefore, we need to subtract the size of the
248 * CSF from the actual filesize
249 */
250 offset = spl_image->size - CONFIG_CSF_SIZE;
251 if (!imx_hab_authenticate_image(spl_image->load_addr,
252 offset + IVT_SIZE +
253 CSF_PAD_SIZE, offset)) {
254 image_entry();
255 } else {
256 puts("spl: ERROR: image authentication fail\n");
257 hang();
258 }
259 }
260 }
261
board_spl_fit_size_align(ulong size)262 ulong board_spl_fit_size_align(ulong size)
263 {
264 /*
265 * HAB authenticate_image requests the IVT offset is
266 * aligned to 0x1000
267 */
268
269 size = ALIGN(size, 0x1000);
270 size += CONFIG_CSF_SIZE;
271
272 return size;
273 }
274
board_spl_fit_post_load(ulong load_addr,size_t length)275 void board_spl_fit_post_load(ulong load_addr, size_t length)
276 {
277 u32 offset = length - CONFIG_CSF_SIZE;
278
279 if (imx_hab_authenticate_image(load_addr,
280 offset + IVT_SIZE + CSF_PAD_SIZE,
281 offset)) {
282 puts("spl: ERROR: image authentication unsuccessful\n");
283 hang();
284 }
285 }
286
287 #endif
288
289 #if defined(CONFIG_MX6) && defined(CONFIG_SPL_OS_BOOT)
dram_init_banksize(void)290 int dram_init_banksize(void)
291 {
292 gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
293 gd->bd->bi_dram[0].size = imx_ddr_size();
294
295 return 0;
296 }
297 #endif
298