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8#include <common.h>
9#include <asm/arch/imx-regs.h>
10#include <asm/io.h>
11#include <asm/arch/clock.h>
12#include <asm/arch/sys_proto.h>
13#include <asm/mach-imx/hab.h>
14#include <asm/mach-imx/boot_mode.h>
15#include <asm/mach-imx/syscounter.h>
16#include <asm/armv8/mmu.h>
17#include <errno.h>
18#include <fdt_support.h>
19#include <fsl_wdog.h>
20#include <imx_sip.h>
21
22DECLARE_GLOBAL_DATA_PTR;
23
24#if defined(CONFIG_SECURE_BOOT)
25struct imx_sec_config_fuse_t const imx_sec_config_fuse = {
26 .bank = 1,
27 .word = 3,
28};
29#endif
30
31int timer_init(void)
32{
33#ifdef CONFIG_SPL_BUILD
34 struct sctr_regs *sctr = (struct sctr_regs *)SYSCNT_CTRL_BASE_ADDR;
35 unsigned long freq = readl(&sctr->cntfid0);
36
37
38 asm volatile("msr cntfrq_el0, %0" : : "r" (freq) : "memory");
39
40 clrsetbits_le32(&sctr->cntcr, SC_CNTCR_FREQ0 | SC_CNTCR_FREQ1,
41 SC_CNTCR_FREQ0 | SC_CNTCR_ENABLE | SC_CNTCR_HDBG);
42#endif
43
44 gd->arch.tbl = 0;
45 gd->arch.tbu = 0;
46
47 return 0;
48}
49
50void enable_tzc380(void)
51{
52 struct iomuxc_gpr_base_regs *gpr =
53 (struct iomuxc_gpr_base_regs *)IOMUXC_GPR_BASE_ADDR;
54
55
56 setbits_le32(&gpr->gpr[10], GPR_TZASC_EN);
57 setbits_le32(&gpr->gpr[10], GPR_TZASC_EN_LOCK);
58}
59
60void set_wdog_reset(struct wdog_regs *wdog)
61{
62
63
64
65
66
67
68
69 setbits_le16(&wdog->wcr, WDOG_WDT_MASK | WDOG_WDZST_MASK);
70}
71
72static struct mm_region imx8m_mem_map[] = {
73 {
74
75 .virt = 0x0UL,
76 .phys = 0x0UL,
77 .size = 0x100000UL,
78 .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
79 PTE_BLOCK_OUTER_SHARE
80 }, {
81
82 .virt = 0x100000UL,
83 .phys = 0x100000UL,
84 .size = 0x8000UL,
85 .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
86 PTE_BLOCK_NON_SHARE |
87 PTE_BLOCK_PXN | PTE_BLOCK_UXN
88 }, {
89
90 .virt = 0x7C0000UL,
91 .phys = 0x7C0000UL,
92 .size = 0x80000UL,
93 .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
94 PTE_BLOCK_NON_SHARE |
95 PTE_BLOCK_PXN | PTE_BLOCK_UXN
96 }, {
97
98 .virt = 0x900000UL,
99 .phys = 0x900000UL,
100 .size = 0x200000UL,
101 .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
102 PTE_BLOCK_OUTER_SHARE
103 }, {
104
105 .virt = 0xB00000UL,
106 .phys = 0xB00000UL,
107 .size = 0x3f500000UL,
108 .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
109 PTE_BLOCK_NON_SHARE |
110 PTE_BLOCK_PXN | PTE_BLOCK_UXN
111 }, {
112
113 .virt = 0x40000000UL,
114 .phys = 0x40000000UL,
115 .size = 0xC0000000UL,
116 .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
117 PTE_BLOCK_OUTER_SHARE
118 }, {
119
120 .virt = 0x100000000UL,
121 .phys = 0x100000000UL,
122 .size = 0x040000000UL,
123 .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
124 PTE_BLOCK_OUTER_SHARE
125 }, {
126
127 0,
128 }
129};
130
131struct mm_region *mem_map = imx8m_mem_map;
132
133u32 get_cpu_rev(void)
134{
135 struct anamix_pll *ana_pll = (struct anamix_pll *)ANATOP_BASE_ADDR;
136 u32 reg = readl(&ana_pll->digprog);
137 u32 type = (reg >> 16) & 0xff;
138 u32 rom_version;
139
140 reg &= 0xff;
141
142 if (reg == CHIP_REV_1_0) {
143
144
145
146
147 rom_version = readl((void __iomem *)ROM_VERSION_A0);
148 if (rom_version != CHIP_REV_1_0) {
149 rom_version = readl((void __iomem *)ROM_VERSION_B0);
150 if (rom_version >= CHIP_REV_2_0)
151 reg = CHIP_REV_2_0;
152 }
153 }
154
155 return (type << 12) | reg;
156}
157
158static void imx_set_wdog_powerdown(bool enable)
159{
160 struct wdog_regs *wdog1 = (struct wdog_regs *)WDOG1_BASE_ADDR;
161 struct wdog_regs *wdog2 = (struct wdog_regs *)WDOG2_BASE_ADDR;
162 struct wdog_regs *wdog3 = (struct wdog_regs *)WDOG3_BASE_ADDR;
163
164
165 writew(enable, &wdog1->wmcr);
166 writew(enable, &wdog2->wmcr);
167 writew(enable, &wdog3->wmcr);
168}
169
170int arch_cpu_init(void)
171{
172
173
174
175
176 timer_init();
177
178 if (IS_ENABLED(CONFIG_SPL_BUILD)) {
179 clock_init();
180 imx_set_wdog_powerdown(false);
181 }
182
183 return 0;
184}
185
186bool is_usb_boot(void)
187{
188 return get_boot_device() == USB_BOOT;
189}
190
191#ifdef CONFIG_OF_SYSTEM_SETUP
192int ft_system_setup(void *blob, bd_t *bd)
193{
194 int i = 0;
195 int rc;
196 int nodeoff;
197
198
199 if (is_soc_rev(CHIP_REV_1_0)) {
200 static const char * const nodes_path[] = {
201 "/cpus/cpu@0",
202 "/cpus/cpu@1",
203 "/cpus/cpu@2",
204 "/cpus/cpu@3",
205 };
206
207 for (i = 0; i < ARRAY_SIZE(nodes_path); i++) {
208 nodeoff = fdt_path_offset(blob, nodes_path[i]);
209 if (nodeoff < 0)
210 continue;
211
212 printf("Found %s node\n", nodes_path[i]);
213
214 rc = fdt_delprop(blob, nodeoff, "cpu-idle-states");
215 if (rc) {
216 printf("Unable to update property %s:%s, err=%s\n",
217 nodes_path[i], "status", fdt_strerror(rc));
218 return rc;
219 }
220
221 printf("Remove %s:%s\n", nodes_path[i],
222 "cpu-idle-states");
223 }
224 }
225
226 return 0;
227}
228#endif
229
230void reset_cpu(ulong addr)
231{
232 struct watchdog_regs *wdog = (struct watchdog_regs *)WDOG1_BASE_ADDR;
233
234
235 writew((WCR_WDE | WCR_SRS), &wdog->wcr);
236
237 while (1) {
238
239
240
241 }
242}
243