1 /*
2  * (C) Copyright 2016
3  * Vikas Manocha, STMicroelectronics, <vikas.manocha@st.com>
4  *
5  * SPDX-License-Identifier:	GPL-2.0+
6  */
7 
8 #ifndef _ASM_ARCH_HARDWARE_H
9 #define _ASM_ARCH_HARDWARE_H
10 
11 /* STM32F746 */
12 #define ITCM_FLASH_BASE		0x00200000UL
13 #define AXIM_FLASH_BASE		0x08000000UL
14 
15 #define ITCM_SRAM_BASE		0x00000000UL
16 #define DTCM_SRAM_BASE		0x20000000UL
17 #define SRAM1_BASE		0x20010000UL
18 #define SRAM2_BASE		0x2004C000UL
19 
20 #define PERIPH_BASE		0x40000000UL
21 
22 #define APB1_PERIPH_BASE	(PERIPH_BASE + 0x00000000)
23 #define APB2_PERIPH_BASE	(PERIPH_BASE + 0x00010000)
24 #define AHB1_PERIPH_BASE	(PERIPH_BASE + 0x00020000)
25 #define AHB2_PERIPH_BASE	(PERIPH_BASE + 0x10000000)
26 #define AHB3_PERIPH_BASE	(PERIPH_BASE + 0x20000000)
27 
28 #define TIM2_BASE		(APB1_PERIPH_BASE + 0x0000)
29 #define USART2_BASE		(APB1_PERIPH_BASE + 0x4400)
30 #define USART3_BASE		(APB1_PERIPH_BASE + 0x4800)
31 #define PWR_BASE		(APB1_PERIPH_BASE + 0x7000)
32 
33 #define USART1_BASE		(APB2_PERIPH_BASE + 0x1000)
34 #define USART6_BASE		(APB2_PERIPH_BASE + 0x1400)
35 
36 #define STM32_GPIOA_BASE	(AHB1_PERIPH_BASE + 0x0000)
37 #define STM32_GPIOB_BASE	(AHB1_PERIPH_BASE + 0x0400)
38 #define STM32_GPIOC_BASE	(AHB1_PERIPH_BASE + 0x0800)
39 #define STM32_GPIOD_BASE	(AHB1_PERIPH_BASE + 0x0C00)
40 #define STM32_GPIOE_BASE	(AHB1_PERIPH_BASE + 0x1000)
41 #define STM32_GPIOF_BASE	(AHB1_PERIPH_BASE + 0x1400)
42 #define STM32_GPIOG_BASE	(AHB1_PERIPH_BASE + 0x1800)
43 #define STM32_GPIOH_BASE	(AHB1_PERIPH_BASE + 0x1C00)
44 #define STM32_GPIOI_BASE	(AHB1_PERIPH_BASE + 0x2000)
45 #define STM32_GPIOJ_BASE	(AHB1_PERIPH_BASE + 0x2400)
46 #define STM32_GPIOK_BASE	(AHB1_PERIPH_BASE + 0x2800)
47 #define RCC_BASE		(AHB1_PERIPH_BASE + 0x3800)
48 #define FLASH_CNTL_BASE		(AHB1_PERIPH_BASE + 0x3C00)
49 
50 
51 #define SDRAM_FMC_BASE		(AHB3_PERIPH_BASE + 0x4A0000140)
52 
53 static const u32 sect_sz_kb[CONFIG_SYS_MAX_FLASH_SECT] = {
54 	[0 ... 3] =	32 * 1024,
55 	[4] =		128 * 1024,
56 	[5 ... 7] =	256 * 1024
57 };
58 
59 enum clock {
60 	CLOCK_CORE,
61 	CLOCK_AHB,
62 	CLOCK_APB1,
63 	CLOCK_APB2
64 };
65 #define STM32_BUS_MASK          0xFFFF0000
66 
67 struct stm32_rcc_regs {
68 	u32 cr;		/* RCC clock control */
69 	u32 pllcfgr;	/* RCC PLL configuration */
70 	u32 cfgr;	/* RCC clock configuration */
71 	u32 cir;	/* RCC clock interrupt */
72 	u32 ahb1rstr;	/* RCC AHB1 peripheral reset */
73 	u32 ahb2rstr;	/* RCC AHB2 peripheral reset */
74 	u32 ahb3rstr;	/* RCC AHB3 peripheral reset */
75 	u32 rsv0;
76 	u32 apb1rstr;	/* RCC APB1 peripheral reset */
77 	u32 apb2rstr;	/* RCC APB2 peripheral reset */
78 	u32 rsv1[2];
79 	u32 ahb1enr;	/* RCC AHB1 peripheral clock enable */
80 	u32 ahb2enr;	/* RCC AHB2 peripheral clock enable */
81 	u32 ahb3enr;	/* RCC AHB3 peripheral clock enable */
82 	u32 rsv2;
83 	u32 apb1enr;	/* RCC APB1 peripheral clock enable */
84 	u32 apb2enr;	/* RCC APB2 peripheral clock enable */
85 	u32 rsv3[2];
86 	u32 ahb1lpenr;	/* RCC AHB1 periph clk enable in low pwr mode */
87 	u32 ahb2lpenr;	/* RCC AHB2 periph clk enable in low pwr mode */
88 	u32 ahb3lpenr;	/* RCC AHB3 periph clk enable in low pwr mode */
89 	u32 rsv4;
90 	u32 apb1lpenr;	/* RCC APB1 periph clk enable in low pwr mode */
91 	u32 apb2lpenr;	/* RCC APB2 periph clk enable in low pwr mode */
92 	u32 rsv5[2];
93 	u32 bdcr;	/* RCC Backup domain control */
94 	u32 csr;	/* RCC clock control & status */
95 	u32 rsv6[2];
96 	u32 sscgr;	/* RCC spread spectrum clock generation */
97 	u32 plli2scfgr;	/* RCC PLLI2S configuration */
98 	u32 pllsaicfgr;
99 	u32 dckcfgr;
100 };
101 #define STM32_RCC		((struct stm32_rcc_regs *)RCC_BASE)
102 
103 struct stm32_pwr_regs {
104 	u32 cr1;   /* power control register 1 */
105 	u32 csr1;  /* power control/status register 2 */
106 	u32 cr2;   /* power control register 2 */
107 	u32 csr2;  /* power control/status register 2 */
108 };
109 #define STM32_PWR		((struct stm32_pwr_regs *)PWR_BASE)
110 
111 int configure_clocks(void);
112 unsigned long clock_get(enum clock clck);
113 void stm32_flash_latency_cfg(int latency);
114 
115 #endif /* _ASM_ARCH_HARDWARE_H */
116