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
spl_board_boot_device(enum boot_device boot_dev_spl)21 __weak int spl_board_boot_device(enum boot_device boot_dev_spl)
22 {
23 return 0;
24 }
25
26 #if defined(CONFIG_MX6)
27 /* determine boot device from SRC_SBMR1 (BOOT_CFG[4:1]) or SRC_GPR9 register */
spl_boot_device(void)28 u32 spl_boot_device(void)
29 {
30 unsigned int bmode = readl(&src_base->sbmr2);
31 u32 reg = imx6_src_get_boot_mode();
32
33 /*
34 * Check for BMODE if serial downloader is enabled
35 * BOOT_MODE - see IMX6DQRM Table 8-1
36 */
37 if (((bmode >> 24) & 0x03) == 0x01) /* Serial Downloader */
38 return BOOT_DEVICE_BOARD;
39
40 /*
41 * The above method does not detect that the boot ROM used
42 * serial downloader in case the boot ROM decided to use the
43 * serial downloader as a fall back (primary boot source failed).
44 *
45 * Infer that the boot ROM used the USB serial downloader by
46 * checking whether the USB PHY is currently active... This
47 * assumes that SPL did not (yet) initialize the USB PHY...
48 */
49 if (is_usbotg_phy_active())
50 return BOOT_DEVICE_BOARD;
51
52 /* BOOT_CFG1[7:4] - see IMX6DQRM Table 8-8 */
53 switch ((reg & IMX6_BMODE_MASK) >> IMX6_BMODE_SHIFT) {
54 /* EIM: See 8.5.1, Table 8-9 */
55 case IMX6_BMODE_EMI:
56 /* BOOT_CFG1[3]: NOR/OneNAND Selection */
57 switch ((reg & IMX6_BMODE_EMI_MASK) >> IMX6_BMODE_EMI_SHIFT) {
58 case IMX6_BMODE_ONENAND:
59 return BOOT_DEVICE_ONENAND;
60 case IMX6_BMODE_NOR:
61 return BOOT_DEVICE_NOR;
62 break;
63 }
64 /* Reserved: Used to force Serial Downloader */
65 case IMX6_BMODE_RESERVED:
66 return BOOT_DEVICE_BOARD;
67 /* SATA: See 8.5.4, Table 8-20 */
68 #if !defined(CONFIG_MX6UL) && !defined(CONFIG_MX6ULL)
69 case IMX6_BMODE_SATA:
70 return BOOT_DEVICE_SATA;
71 #endif
72 /* Serial ROM: See 8.5.5.1, Table 8-22 */
73 case IMX6_BMODE_SERIAL_ROM:
74 /* BOOT_CFG4[2:0] */
75 switch ((reg & IMX6_BMODE_SERIAL_ROM_MASK) >>
76 IMX6_BMODE_SERIAL_ROM_SHIFT) {
77 case IMX6_BMODE_ECSPI1:
78 case IMX6_BMODE_ECSPI2:
79 case IMX6_BMODE_ECSPI3:
80 case IMX6_BMODE_ECSPI4:
81 case IMX6_BMODE_ECSPI5:
82 return BOOT_DEVICE_SPI;
83 case IMX6_BMODE_I2C1:
84 case IMX6_BMODE_I2C2:
85 case IMX6_BMODE_I2C3:
86 return BOOT_DEVICE_I2C;
87 }
88 break;
89 /* SD/eSD: 8.5.3, Table 8-15 */
90 case IMX6_BMODE_SD:
91 case IMX6_BMODE_ESD:
92 return BOOT_DEVICE_MMC1;
93 /* MMC/eMMC: 8.5.3 */
94 case IMX6_BMODE_MMC:
95 case IMX6_BMODE_EMMC:
96 return BOOT_DEVICE_MMC1;
97 /* NAND Flash: 8.5.2, Table 8-10 */
98 case IMX6_BMODE_NAND_MIN ... IMX6_BMODE_NAND_MAX:
99 return BOOT_DEVICE_NAND;
100 #if defined(CONFIG_MX6UL) || defined(CONFIG_MX6ULL)
101 /* QSPI boot */
102 case IMX6_BMODE_QSPI:
103 return BOOT_DEVICE_SPI;
104 #endif
105 }
106 return BOOT_DEVICE_NONE;
107 }
108
109 #elif defined(CONFIG_MX7) || defined(CONFIG_IMX8M) || defined(CONFIG_IMX8)
110 /* Translate iMX7/i.MX8M boot device to the SPL boot device enumeration */
spl_boot_device(void)111 u32 spl_boot_device(void)
112 {
113 #if defined(CONFIG_MX7)
114 unsigned int bmode = readl(&src_base->sbmr2);
115
116 /*
117 * Check for BMODE if serial downloader is enabled
118 * BOOT_MODE - see IMX7DRM Table 6-24
119 */
120 if (((bmode >> 24) & 0x03) == 0x01) /* Serial Downloader */
121 return BOOT_DEVICE_BOARD;
122
123 /*
124 * The above method does not detect that the boot ROM used
125 * serial downloader in case the boot ROM decided to use the
126 * serial downloader as a fall back (primary boot source failed).
127 *
128 * Infer that the boot ROM used the USB serial downloader by
129 * checking whether the USB PHY is currently active... This
130 * assumes that SPL did not (yet) initialize the USB PHY...
131 */
132 if (is_boot_from_usb())
133 return BOOT_DEVICE_BOARD;
134 #endif
135
136 enum boot_device boot_device_spl = get_boot_device();
137
138 if (IS_ENABLED(CONFIG_IMX8MM) || IS_ENABLED(CONFIG_IMX8MN))
139 return spl_board_boot_device(boot_device_spl);
140
141 switch (boot_device_spl) {
142 #if defined(CONFIG_MX7)
143 case SD1_BOOT:
144 case MMC1_BOOT:
145 case SD2_BOOT:
146 case MMC2_BOOT:
147 case SD3_BOOT:
148 case MMC3_BOOT:
149 return BOOT_DEVICE_MMC1;
150 #elif defined(CONFIG_IMX8)
151 case MMC1_BOOT:
152 return BOOT_DEVICE_MMC1;
153 case SD2_BOOT:
154 return BOOT_DEVICE_MMC2_2;
155 case SD3_BOOT:
156 return BOOT_DEVICE_MMC1;
157 case FLEXSPI_BOOT:
158 return BOOT_DEVICE_SPI;
159 #elif defined(CONFIG_IMX8M)
160 case SD1_BOOT:
161 case MMC1_BOOT:
162 return BOOT_DEVICE_MMC1;
163 case SD2_BOOT:
164 case MMC2_BOOT:
165 return BOOT_DEVICE_MMC2;
166 #endif
167 case NAND_BOOT:
168 return BOOT_DEVICE_NAND;
169 case SPI_NOR_BOOT:
170 return BOOT_DEVICE_SPI;
171 case USB_BOOT:
172 return BOOT_DEVICE_USB;
173 default:
174 return BOOT_DEVICE_NONE;
175 }
176 }
177 #endif /* CONFIG_MX7 || CONFIG_IMX8M || CONFIG_IMX8 */
178
179 #ifdef CONFIG_SPL_USB_GADGET
g_dnl_bind_fixup(struct usb_device_descriptor * dev,const char * name)180 int g_dnl_bind_fixup(struct usb_device_descriptor *dev, const char *name)
181 {
182 put_unaligned(CONFIG_USB_GADGET_PRODUCT_NUM + 0xfff, &dev->idProduct);
183
184 return 0;
185 }
186 #endif
187
188 #if defined(CONFIG_SPL_MMC_SUPPORT)
189 /* called from spl_mmc to see type of boot mode for storage (RAW or FAT) */
spl_boot_mode(const u32 boot_device)190 u32 spl_boot_mode(const u32 boot_device)
191 {
192 #if defined(CONFIG_MX7) || defined(CONFIG_IMX8M) || defined(CONFIG_IMX8)
193 switch (get_boot_device()) {
194 /* for MMC return either RAW or FAT mode */
195 case SD1_BOOT:
196 case SD2_BOOT:
197 case SD3_BOOT:
198 #if defined(CONFIG_SPL_FAT_SUPPORT)
199 return MMCSD_MODE_FS;
200 #else
201 return MMCSD_MODE_RAW;
202 #endif
203 break;
204 case MMC1_BOOT:
205 case MMC2_BOOT:
206 case MMC3_BOOT:
207 #if defined(CONFIG_SPL_FAT_SUPPORT)
208 return MMCSD_MODE_FS;
209 #elif defined(CONFIG_SUPPORT_EMMC_BOOT)
210 return MMCSD_MODE_EMMCBOOT;
211 #else
212 return MMCSD_MODE_RAW;
213 #endif
214 break;
215 default:
216 puts("spl: ERROR: unsupported device\n");
217 hang();
218 }
219 #else
220 /*
221 * When CONFIG_SPL_FORCE_MMC_BOOT is defined the 'boot_device' is used
222 * unconditionally to decide about device to use for booting.
223 * This is crucial for falcon boot mode, when board boots up (i.e. ROM
224 * loads SPL) from slow SPI-NOR memory and afterwards the SPL's 'falcon' boot
225 * mode is used to load Linux OS from eMMC partition.
226 */
227 #ifdef CONFIG_SPL_FORCE_MMC_BOOT
228 switch (boot_device) {
229 #else
230 switch (spl_boot_device()) {
231 #endif
232 /* for MMC return either RAW or FAT mode */
233 case BOOT_DEVICE_MMC1:
234 case BOOT_DEVICE_MMC2:
235 case BOOT_DEVICE_MMC2_2:
236 #if defined(CONFIG_SPL_FS_FAT)
237 return MMCSD_MODE_FS;
238 #elif defined(CONFIG_SUPPORT_EMMC_BOOT)
239 return MMCSD_MODE_EMMCBOOT;
240 #else
241 return MMCSD_MODE_RAW;
242 #endif
243 break;
244 default:
245 puts("spl: ERROR: unsupported device\n");
246 hang();
247 }
248 #endif
249 }
250 #endif
251
252 #if defined(CONFIG_IMX_HAB)
253
254 /*
255 * +------------+ 0x0 (DDR_UIMAGE_START) -
256 * | Header | |
257 * +------------+ 0x40 |
258 * | | |
259 * | | |
260 * | | |
261 * | | |
262 * | Image Data | |
263 * . | |
264 * . | > Stuff to be authenticated ----+
265 * . | | |
266 * | | | |
267 * | | | |
268 * +------------+ | |
269 * | | | |
270 * | Fill Data | | |
271 * | | | |
272 * +------------+ Align to ALIGN_SIZE | |
273 * | IVT | | |
274 * +------------+ + IVT_SIZE - |
275 * | | |
276 * | CSF DATA | <---------------------------------------------------------+
277 * | |
278 * +------------+
279 * | |
280 * | Fill Data |
281 * | |
282 * +------------+ + CSF_PAD_SIZE
283 */
284
285 __weak void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image)
286 {
287 typedef void __noreturn (*image_entry_noargs_t)(void);
288 uint32_t offset;
289
290 image_entry_noargs_t image_entry =
291 (image_entry_noargs_t)(unsigned long)spl_image->entry_point;
292
293 debug("image entry point: 0x%lX\n", spl_image->entry_point);
294
295 if (spl_image->flags & SPL_FIT_FOUND) {
296 image_entry();
297 } else {
298 /*
299 * HAB looks for the CSF at the end of the authenticated
300 * data therefore, we need to subtract the size of the
301 * CSF from the actual filesize
302 */
303 offset = spl_image->size - CONFIG_CSF_SIZE;
304 if (!imx_hab_authenticate_image(spl_image->load_addr,
305 offset + IVT_SIZE +
306 CSF_PAD_SIZE, offset)) {
307 image_entry();
308 } else {
309 puts("spl: ERROR: image authentication fail\n");
310 hang();
311 }
312 }
313 }
314
315 #if !defined(CONFIG_SPL_FIT_SIGNATURE)
316 ulong board_spl_fit_size_align(ulong size)
317 {
318 /*
319 * HAB authenticate_image requests the IVT offset is
320 * aligned to 0x1000
321 */
322
323 size = ALIGN(size, 0x1000);
324 size += CONFIG_CSF_SIZE;
325
326 return size;
327 }
328
329 void board_spl_fit_post_load(ulong load_addr, size_t length)
330 {
331 u32 offset = length - CONFIG_CSF_SIZE;
332
333 if (imx_hab_authenticate_image(load_addr,
334 offset + IVT_SIZE + CSF_PAD_SIZE,
335 offset)) {
336 puts("spl: ERROR: image authentication unsuccessful\n");
337 hang();
338 }
339 }
340 #endif
341
342 #endif
343
344 #if defined(CONFIG_MX6) && defined(CONFIG_SPL_OS_BOOT)
345 int dram_init_banksize(void)
346 {
347 gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
348 gd->bd->bi_dram[0].size = imx_ddr_size();
349
350 return 0;
351 }
352 #endif
353