1 files changed, 97 insertions, 0 deletions
diff --git a/include/stm32_rcc.h b/include/stm32_rcc.h
new file mode 100644
index 0000000..a09a09f
--- /dev/null
+++ b/include/stm32_rcc.h
@@ -0,0 +1,97 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (C) STMicroelectronics SA 2017
+ * Author(s): Patrice CHOTARD, <patrice.chotard@st.com> for STMicroelectronics.
+ */
+
+#ifndef __STM32_RCC_H_
+#define __STM32_RCC_H_
+
+#define AHB_PSC_1			0
+#define AHB_PSC_2			0x8
+#define AHB_PSC_4			0x9
+#define AHB_PSC_8			0xA
+#define AHB_PSC_16			0xB
+#define AHB_PSC_64			0xC
+#define AHB_PSC_128			0xD
+#define AHB_PSC_256			0xE
+#define AHB_PSC_512			0xF
+
+#define APB_PSC_1			0
+#define APB_PSC_2			0x4
+#define APB_PSC_4			0x5
+#define APB_PSC_8			0x6
+#define APB_PSC_16			0x7
+
+struct pll_psc {
+	u8	pll_m;
+	u16	pll_n;
+	u8	pll_p;
+	u8	pll_q;
+	u8	ahb_psc;
+	u8	apb1_psc;
+	u8	apb2_psc;
+};
+
+struct stm32_clk_info {
+	struct pll_psc sys_pll_psc;
+	bool has_overdrive;
+	bool v2;
+};
+
+enum soc_family {
+	STM32F42X,
+	STM32F469,
+	STM32F7,
+	STM32MP1,
+};
+
+enum apb {
+	APB1,
+	APB2,
+};
+
+struct stm32_rcc_clk {
+	char *drv_name;
+	enum soc_family soc;
+};
+
+struct stm32_rcc_regs {
+	u32 cr;		/* RCC clock control */
+	u32 pllcfgr;	/* RCC PLL configuration */
+	u32 cfgr;	/* RCC clock configuration */
+	u32 cir;	/* RCC clock interrupt */
+	u32 ahb1rstr;	/* RCC AHB1 peripheral reset */
+	u32 ahb2rstr;	/* RCC AHB2 peripheral reset */
+	u32 ahb3rstr;	/* RCC AHB3 peripheral reset */
+	u32 rsv0;
+	u32 apb1rstr;	/* RCC APB1 peripheral reset */
+	u32 apb2rstr;	/* RCC APB2 peripheral reset */
+	u32 rsv1[2];
+	u32 ahb1enr;	/* RCC AHB1 peripheral clock enable */
+	u32 ahb2enr;	/* RCC AHB2 peripheral clock enable */
+	u32 ahb3enr;	/* RCC AHB3 peripheral clock enable */
+	u32 rsv2;
+	u32 apb1enr;	/* RCC APB1 peripheral clock enable */
+	u32 apb2enr;	/* RCC APB2 peripheral clock enable */
+	u32 rsv3[2];
+	u32 ahb1lpenr;	/* RCC AHB1 periph clk enable in low pwr mode */
+	u32 ahb2lpenr;	/* RCC AHB2 periph clk enable in low pwr mode */
+	u32 ahb3lpenr;	/* RCC AHB3 periph clk enable in low pwr mode */
+	u32 rsv4;
+	u32 apb1lpenr;	/* RCC APB1 periph clk enable in low pwr mode */
+	u32 apb2lpenr;	/* RCC APB2 periph clk enable in low pwr mode */
+	u32 rsv5[2];
+	u32 bdcr;	/* RCC Backup domain control */
+	u32 csr;	/* RCC clock control & status */
+	u32 rsv6[2];
+	u32 sscgr;	/* RCC spread spectrum clock generation */
+	u32 plli2scfgr;	/* RCC PLLI2S configuration */
+	/* below registers are only available on STM32F46x and STM32F7 SoCs*/
+	u32 pllsaicfgr;	/* PLLSAI configuration */
+	u32 dckcfgr;	/* dedicated clocks configuration register */
+	/* Below registers are only available on STM32F7 SoCs */
+	u32 dckcfgr2;	/* dedicated clocks configuration register */
+};
+
+#endif /* __STM32_RCC_H_ */