1 /*
2  * Copyright (C) 2018, STMicroelectronics - All Rights Reserved
3  *
4  * SPDX-License-Identifier:	GPL-2.0+	BSD-3-Clause
5  */
6 
7 #ifndef _MACH_STM32_H_
8 #define _MACH_STM32_H_
9 
10 /*
11  * Peripheral memory map
12  * only address used before device tree parsing
13  */
14 #define STM32_RCC_BASE			0x50000000
15 #define STM32_PWR_BASE			0x50001000
16 #define STM32_DBGMCU_BASE		0x50081000
17 #define STM32_TZC_BASE			0x5C006000
18 #define STM32_ETZPC_BASE		0x5C007000
19 #define STM32_TAMP_BASE			0x5C00A000
20 
21 #define STM32_SYSRAM_BASE		0x2FFC0000
22 #define STM32_SYSRAM_SIZE		SZ_256K
23 
24 #define STM32_DDR_BASE			0xC0000000
25 #define STM32_DDR_SIZE			SZ_1G
26 
27 #ifndef __ASSEMBLY__
28 /* enumerated used to identify the SYSCON driver instance */
29 enum {
30 	STM32MP_SYSCON_UNKNOWN,
31 	STM32MP_SYSCON_STGEN,
32 };
33 
34 /*
35  * enumerated for boot interface from Bootrom, used in TAMP_BOOT_CONTEXT
36  * - boot device = bit 8:4
37  * - boot instance = bit 3:0
38  */
39 #define BOOT_TYPE_MASK		0xF0
40 #define BOOT_TYPE_SHIFT		4
41 #define BOOT_INSTANCE_MASK	0x0F
42 #define BOOT_INSTANCE_SHIFT	0
43 
44 enum boot_device {
45 	BOOT_FLASH_SD = 0x10,
46 	BOOT_FLASH_SD_1 = 0x11,
47 	BOOT_FLASH_SD_2 = 0x12,
48 	BOOT_FLASH_SD_3 = 0x13,
49 
50 	BOOT_FLASH_EMMC = 0x20,
51 	BOOT_FLASH_EMMC_1 = 0x21,
52 	BOOT_FLASH_EMMC_2 = 0x22,
53 	BOOT_FLASH_EMMC_3 = 0x23,
54 
55 	BOOT_FLASH_NAND = 0x30,
56 	BOOT_FLASH_NAND_FMC = 0x31,
57 
58 	BOOT_FLASH_NOR = 0x40,
59 	BOOT_FLASH_NOR_QSPI = 0x41,
60 
61 	BOOT_SERIAL_UART = 0x50,
62 	BOOT_SERIAL_UART_1 = 0x51,
63 	BOOT_SERIAL_UART_2 = 0x52,
64 	BOOT_SERIAL_UART_3 = 0x53,
65 	BOOT_SERIAL_UART_4 = 0x54,
66 	BOOT_SERIAL_UART_5 = 0x55,
67 	BOOT_SERIAL_UART_6 = 0x56,
68 	BOOT_SERIAL_UART_7 = 0x57,
69 	BOOT_SERIAL_UART_8 = 0x58,
70 
71 	BOOT_SERIAL_USB = 0x60,
72 	BOOT_SERIAL_USB_OTG = 0x62,
73 };
74 
75 /* TAMP registers */
76 #define TAMP_BACKUP_REGISTER(x)		(STM32_TAMP_BASE + 0x100 + 4 * x)
77 #define TAMP_BOOT_CONTEXT		TAMP_BACKUP_REGISTER(20)
78 
79 #define TAMP_BOOT_MODE_MASK		GENMASK(15, 8)
80 #define TAMP_BOOT_MODE_SHIFT		8
81 #define TAMP_BOOT_DEVICE_MASK		GENMASK(7, 4)
82 #define TAMP_BOOT_INSTANCE_MASK		GENMASK(3, 0)
83 
84 #endif /* __ASSEMBLY__*/
85 #endif /* _MACH_STM32_H_ */
86