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