1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright (C) 2015 Freescale Semiconductor, Inc.
8 #include <asm/arch/imx-regs.h>
9 #include <asm/arch/clock.h>
10 #include <asm/arch/sys_proto.h>
11 #include <asm/mach-imx/boot_mode.h>
12 #include <asm/mach-imx/dma.h>
13 #include <asm/mach-imx/hab.h>
14 #include <asm/mach-imx/rdc-sema.h>
15 #include <asm/arch/imx-rdc.h>
16 #include <asm/arch/crm_regs.h>
18 #include <imx_thermal.h>
20 #include <asm/setup.h>
22 #if defined(CONFIG_IMX_THERMAL)
23 static const struct imx_thermal_plat imx7_thermal_plat = {
24 .regs = (void *)ANATOP_BASE_ADDR,
29 U_BOOT_DEVICE(imx7_thermal) = {
30 .name = "imx_thermal",
31 .platdata = &imx7_thermal_plat,
35 #if CONFIG_IS_ENABLED(IMX_RDC)
37 * In current design, if any peripheral was assigned to both A7 and M4,
38 * it will receive ipg_stop or ipg_wait when any of the 2 platforms enter
39 * low power mode. So M4 sleep will cause some peripherals fail to work
40 * at A7 core side. At default, all resources are in domain 0 - 3.
42 * There are 26 peripherals impacted by this IC issue:
45 * UART1/UART2/UART3/UART4/UART5/UART6/UART7
47 * WDOG1/WDOG2/WDOG3/WDOG4
51 * Software Workaround:
52 * Here we setup some resources to domain 0 where M4 codes will move
53 * the M4 out of this domain. Then M4 is not able to access them any longer.
54 * This is a workaround for ic issue. So the peripherals are not shared
55 * by them. This way requires the uboot implemented the RDC driver and
56 * set the 26 IPs above to domain 0 only. M4 code will assign resource
57 * to its own domain, if it want to use the resource.
59 static rdc_peri_cfg_t const resources[] = {
60 (RDC_PER_SIM1 | RDC_DOMAIN(0)),
61 (RDC_PER_SIM2 | RDC_DOMAIN(0)),
62 (RDC_PER_UART1 | RDC_DOMAIN(0)),
63 (RDC_PER_UART2 | RDC_DOMAIN(0)),
64 (RDC_PER_UART3 | RDC_DOMAIN(0)),
65 (RDC_PER_UART4 | RDC_DOMAIN(0)),
66 (RDC_PER_UART5 | RDC_DOMAIN(0)),
67 (RDC_PER_UART6 | RDC_DOMAIN(0)),
68 (RDC_PER_UART7 | RDC_DOMAIN(0)),
69 (RDC_PER_SAI1 | RDC_DOMAIN(0)),
70 (RDC_PER_SAI2 | RDC_DOMAIN(0)),
71 (RDC_PER_SAI3 | RDC_DOMAIN(0)),
72 (RDC_PER_WDOG1 | RDC_DOMAIN(0)),
73 (RDC_PER_WDOG2 | RDC_DOMAIN(0)),
74 (RDC_PER_WDOG3 | RDC_DOMAIN(0)),
75 (RDC_PER_WDOG4 | RDC_DOMAIN(0)),
76 (RDC_PER_GPT1 | RDC_DOMAIN(0)),
77 (RDC_PER_GPT2 | RDC_DOMAIN(0)),
78 (RDC_PER_GPT3 | RDC_DOMAIN(0)),
79 (RDC_PER_GPT4 | RDC_DOMAIN(0)),
80 (RDC_PER_PWM1 | RDC_DOMAIN(0)),
81 (RDC_PER_PWM2 | RDC_DOMAIN(0)),
82 (RDC_PER_PWM3 | RDC_DOMAIN(0)),
83 (RDC_PER_PWM4 | RDC_DOMAIN(0)),
84 (RDC_PER_ENET1 | RDC_DOMAIN(0)),
85 (RDC_PER_ENET2 | RDC_DOMAIN(0)),
88 static void isolate_resource(void)
90 imx_rdc_setup_peripherals(resources, ARRAY_SIZE(resources));
94 #if defined(CONFIG_SECURE_BOOT)
95 struct imx_sec_config_fuse_t const imx_sec_config_fuse = {
101 static bool is_mx7d(void)
103 struct ocotp_regs *ocotp = (struct ocotp_regs *)OCOTP_BASE_ADDR;
104 struct fuse_bank *bank = &ocotp->bank[1];
105 struct fuse_bank1_regs *fuse =
106 (struct fuse_bank1_regs *)bank->fuse_regs;
109 val = readl(&fuse->tester4);
116 u32 get_cpu_rev(void)
118 struct mxc_ccm_anatop_reg *ccm_anatop = (struct mxc_ccm_anatop_reg *)
120 u32 reg = readl(&ccm_anatop->digprog);
121 u32 type = (reg >> 16) & 0xff;
127 return (type << 12) | reg;
130 #ifdef CONFIG_REVISION_TAG
131 u32 __weak get_board_rev(void)
133 return get_cpu_rev();
137 /* enable all periherial can be accessed in nosec mode */
138 static void init_csu(void)
141 for (i = 0; i < CSU_NUM_REGS; i++)
142 writel(CSU_INIT_SEC_LEVEL0, CSU_IPS_BASE_ADDR + i * 4);
145 static void imx_enet_mdio_fixup(void)
147 struct iomuxc_gpr_base_regs *gpr_regs =
148 (struct iomuxc_gpr_base_regs *)IOMUXC_GPR_BASE_ADDR;
151 * The management data input/output (MDIO) requires open-drain,
152 * i.MX7D TO1.0 ENET MDIO pin has no open drain, but TO1.1 supports
153 * this feature. So to TO1.1, need to enable open drain by setting
157 if (soc_rev() >= CHIP_REV_1_1) {
158 setbits_le32(&gpr_regs->gpr[0],
159 IOMUXC_GPR_GPR0_ENET_MDIO_OPEN_DRAIN_MASK);
163 int arch_cpu_init(void)
168 /* Disable PDE bit of WMCR register */
169 imx_wdog_disable_powerdown();
171 imx_enet_mdio_fixup();
173 #ifdef CONFIG_APBH_DMA
178 #if CONFIG_IS_ENABLED(IMX_RDC)
187 #ifdef CONFIG_ARCH_MISC_INIT
188 int arch_misc_init(void)
190 #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
192 env_set("soc", "imx7d");
194 env_set("soc", "imx7s");
197 #ifdef CONFIG_FSL_CAAM
205 #ifdef CONFIG_SERIAL_TAG
208 * i.MX 7Solo Applications Processor Reference Manual, Rev. 0.1, 08/2016
209 * OCOTP_TESTER describes a unique ID based on silicon wafer
210 * and die X/Y position
212 * OCOTOP_TESTER offset 0x410
214 * FSL-wide unique, encoded LOT ID STD II/SJC CHALLENGE/ Unique ID
216 * OCOTP_TESTER1 offset 0x420
218 * The X-coordinate of the die location on the wafer/SJC CHALLENGE/ Unique ID
220 * The Y-coordinate of the die location on the wafer/SJC CHALLENGE/ Unique ID
222 * The wafer number of the wafer on which the device was fabricated/SJC
223 * CHALLENGE/ Unique ID
225 * FSL-wide unique, encoded LOT ID STD II/SJC CHALLENGE/ Unique ID
227 void get_board_serial(struct tag_serialnr *serialnr)
229 struct ocotp_regs *ocotp = (struct ocotp_regs *)OCOTP_BASE_ADDR;
230 struct fuse_bank *bank = &ocotp->bank[0];
231 struct fuse_bank0_regs *fuse =
232 (struct fuse_bank0_regs *)bank->fuse_regs;
234 serialnr->low = fuse->tester0;
235 serialnr->high = fuse->tester1;
239 void set_wdog_reset(struct wdog_regs *wdog)
241 u32 reg = readw(&wdog->wcr);
243 * Output WDOG_B signal to reset external pmic or POR_B decided by
244 * the board desgin. Without external reset, the peripherals/DDR/
245 * PMIC are not reset, that may cause system working abnormal.
247 reg = readw(&wdog->wcr);
250 * WDZST bit is write-once only bit. Align this bit in kernel,
251 * otherwise kernel code will have no chance to set this bit.
254 writew(reg, &wdog->wcr);
258 * cfg_val will be used for
259 * Boot_cfg4[7:0]:Boot_cfg3[7:0]:Boot_cfg2[7:0]:Boot_cfg1[7:0]
260 * After reset, if GPR10[28] is 1, ROM will copy GPR9[25:0]
261 * to SBMR1, which will determine the boot device.
263 const struct boot_mode soc_boot_modes[] = {
264 {"ecspi1:0", MAKE_CFGVAL(0x00, 0x60, 0x00, 0x00)},
265 {"ecspi1:1", MAKE_CFGVAL(0x40, 0x62, 0x00, 0x00)},
266 {"ecspi1:2", MAKE_CFGVAL(0x80, 0x64, 0x00, 0x00)},
267 {"ecspi1:3", MAKE_CFGVAL(0xc0, 0x66, 0x00, 0x00)},
269 {"weim", MAKE_CFGVAL(0x00, 0x50, 0x00, 0x00)},
270 {"qspi1", MAKE_CFGVAL(0x10, 0x40, 0x00, 0x00)},
271 /* 4 bit bus width */
272 {"usdhc1", MAKE_CFGVAL(0x10, 0x10, 0x00, 0x00)},
273 {"usdhc2", MAKE_CFGVAL(0x10, 0x14, 0x00, 0x00)},
274 {"usdhc3", MAKE_CFGVAL(0x10, 0x18, 0x00, 0x00)},
275 {"mmc1", MAKE_CFGVAL(0x10, 0x20, 0x00, 0x00)},
276 {"mmc2", MAKE_CFGVAL(0x10, 0x24, 0x00, 0x00)},
277 {"mmc3", MAKE_CFGVAL(0x10, 0x28, 0x00, 0x00)},
283 /* clock configuration. */
289 void reset_misc(void)
291 #ifdef CONFIG_VIDEO_MXS