rcc: Generate enables from platform spec.

7 files changed, 287 insertions, 473 deletions

diff --git a/SConscript b/SConscript
index 846a01f..26a0bda 100644
--- a/SConscript
+++ b/SConscript
@@ -8,10 +8,10 @@ env.SConscript('ld_scripts/SConscript')
 env.Append(
 	LIB_SOURCES = [
 		env.SConscript('interrupt/SConscript'),
+		env.SConscript('rcc/SConscript'),
 		env.SConscript('usb/SConscript'),
 		Glob('startup/*.cpp'),
 		Glob('i2c/*.cpp'),
 		Glob('os/*.cpp'),
-		Glob('rcc/*.cpp'),
 	],
 )
diff --git a/platforms/stm32/f4.yaml b/platforms/stm32/f4.yaml
index 8a632f1..dc5717d 100644
--- a/platforms/stm32/f4.yaml
+++ b/platforms/stm32/f4.yaml
@@ -34,6 +34,79 @@
       OTG_HS:
         offset: 0x40040000
 
+    rcc:
+      RCC:
+        offset: 0x40023800
+        type: f4
+        bus:
+          AHB1:
+            0: GPIOA
+            1: GPIOB
+            2: GPIOC
+            3: GPIOD
+            4: GPIOE
+            5: GPIOF
+            6: GPIOG
+            7: GPIOH
+            8: GPIOI
+            12: CRC
+            21: DMA1
+            22: DMA2
+            25: ETHMAC
+            26: ETHMACTX
+            27: ETHMACRX
+            28: ETHMACPTP
+            29: OTGHS
+            30: OTGHSULPI
+
+          AHB2:
+            0: DCMI
+            4: CRYP
+            5: HASH
+            6: RNG
+            7: OTGFS
+
+          AHB3:
+            0: FSMC
+
+          APB1:
+            0: TIM2
+            1: TIM3
+            2: TIM4
+            3: TIM5
+            4: TIM6
+            5: TIM7
+            6: TIM12
+            7: TIM13
+            8: TIM14
+            11: WWDG
+            14: SPI2
+            15: SPI3
+            17: USART2
+            18: USART3
+            19: UART4
+            20: UART5
+            21: I2C1
+            22: I2C2
+            23: I2C3
+            25: CAN1
+            26: CAN2
+            28: PWR
+            29: DAC
+
+          APB2:
+            0: TIM1
+            1: TIM8
+            4: USART1
+            5: USART6
+            8: ADC
+            11: SDIO
+            12: SPI1
+            14: SYSCFG
+            16: TIM9
+            17: TIM10
+            18: TIM11
+
   interrupt:
     irq:
       0: WWDG
diff --git a/rcc/SConscript b/rcc/SConscript
new file mode 100644
index 0000000..c7c384b
--- /dev/null
+++ b/rcc/SConscript
@@ -0,0 +1,29 @@
+Import('env')
+
+headers = []
+instances = []
+sources = []
+aliases = {}
+
+periph = env['PLATFORM_SPEC'].get('periph', {})
+
+if 'rcc' in periph:
+    buses = env['PLATFORM_SPEC']['periph']['rcc']['RCC']['bus']
+    env.Jinja2('rcc_enums.h', 'rcc_enums.h.j2', buses = buses)
+
+    headers.append('rcc_reg.h')
+    for name, data in periph['rcc'].items():
+        instances.append({
+            'type': 'RCC_t<RCC_reg_%s_t>' % data['type'],
+            'name': name,
+            'args': [data['offset']],
+        })
+
+    sources.extend([
+        File('rcc.cpp'),
+        File('flash.cpp'),
+    ])
+
+env.Jinja2('rcc.h', '../templates/periph_instances.h.j2', headers = headers, instances = instances, aliases = aliases)
+
+Return('sources')
diff --git a/rcc/rcc.cpp b/rcc/rcc.cpp
index 65faf33..5a7e29e 100644
--- a/rcc/rcc.cpp
+++ b/rcc/rcc.cpp
@@ -9,83 +9,83 @@ void rcc_init() {
 	#if defined(STM32F1) || defined(STM32F3)
 	
 	// Enable HSE.
-	RCC.CR |= 0x10000;
-	while(!(RCC.CR & 0x20000));
+	RCC->CR |= 0x10000;
+	while(!(RCC->CR & 0x20000));
 	
 	// Configure and enable PLL.
-	RCC.CFGR = 0x1d0000;
-	RCC.CR |= 0x1000000;
-	while(!(RCC.CR & 0x2000000));
+	RCC->CFGR = 0x1d0000;
+	RCC->CR |= 0x1000000;
+	while(!(RCC->CR & 0x2000000));
 	
 	// Switch to PLL.
-	RCC.CFGR |= 0x2;
-	while(!(RCC.CFGR & 0x8));
+	RCC->CFGR |= 0x2;
+	while(!(RCC->CFGR & 0x8));
 	
 	// Set APB1 prescaler to /2.
-	RCC.CFGR |= 0x400;
+	RCC->CFGR |= 0x400;
 	
 	// Set ADCCLK prescaler to /6.
-	RCC.CFGR |= 0x8000;
+	RCC->CFGR |= 0x8000;
 	
 	#elif defined(STM32F4)
 	
 	// Enable HSE.
-	RCC.CR |= 0x10000;
-	while(!(RCC.CR & 0x20000));
+	RCC->CR |= 0x10000;
+	while(!(RCC->CR & 0x20000));
 	
 	// Configure and enable PLL.
-	RCC.PLLCFGR = 0x20400000 | (7 << 24) | (2 * 168 << 6) | 8;
-	RCC.CR |= 0x1000000;
-	while(!(RCC.CR & 0x2000000));
+	RCC->PLLCFGR = 0x20400000 | (7 << 24) | (2 * 168 << 6) | 8;
+	RCC->CR |= 0x1000000;
+	while(!(RCC->CR & 0x2000000));
 	
 	// Switch to PLL.
-	RCC.CFGR |= 0x2;
-	while(!(RCC.CFGR & 0x8));
+	RCC->CFGR |= 0x2;
+	while(!(RCC->CFGR & 0x8));
 	
 	// Set APB1 prescaler to /4.
-	RCC.CFGR |= 5 << 10;
+	RCC->CFGR |= 5 << 10;
 	
 	// Set APB2 prescaler to /2.
-	RCC.CFGR |= 4 << 13;
+	RCC->CFGR |= 4 << 13;
 	
 	#elif defined(STM32F0)
 
 	// Enable HSI48.
-	RCC.CR2 |= 1 << 16; // HSI48ON
-	while(!(RCC.CR2 & (1 << 17))); // HSI48RDY
+	RCC->CR2 |= 1 << 16; // HSI48ON
+	while(!(RCC->CR2 & (1 << 17))); // HSI48RDY
 
 	// Switch to HSI48.
-	RCC.CFGR |= 3 << 0; // SW = HSI48
-	while((RCC.CFGR & (3 << 2)) != (3 << 2)); // SWS = HSI48
+	RCC->CFGR |= 3 << 0; // SW = HSI48
+	while((RCC->CFGR & (3 << 2)) != (3 << 2)); // SWS = HSI48
 
 	#elif defined(STM32L0)
 	
 	// Enable HSI16.
-	RCC.CR |= 1 << 0; // HSI16ON
-	while(!(RCC.CR & (1 << 2))); // HSI16RDYF
+	RCC->CR |= 1 << 0; // HSI16ON
+	while(!(RCC->CR & (1 << 2))); // HSI16RDYF
 	
 	// Configure PLL.
-	RCC.CFGR |= (1 << 22) | (1 << 18) | (0 << 16); // PLLDIV = /2, PLLMUL = 4x, PLLSRC = HSI16
+	RCC->CFGR |= (1 << 22) | (1 << 18) | (0 << 16); // PLLDIV = /2, PLLMUL = 4x, PLLSRC = HSI16
 	
 	// Enable PLL.
-	RCC.CR |= 1 << 24; // PLLON
-	while(!(RCC.CR & (1 << 25))); // PLLRDY
+	RCC->CR |= 1 << 24; // PLLON
+	while(!(RCC->CR & (1 << 25))); // PLLRDY
 	
 	// Switch to PLL.
-	RCC.CFGR |= 3 << 0; // SW = PLL
-	while((RCC.CFGR & (3 << 2)) != (3 << 2)); // SWS = PLL
+	RCC->CFGR |= 3 << 0; // SW = PLL
+	while((RCC->CFGR & (3 << 2)) != (3 << 2)); // SWS = PLL
 	
 	// Enable VREFINT for HSI48.
-	RCC.enable(RCC.SYSCFG);
+	RCC->enable(RCC->SYSCFG);
 	SYSCFG.CFGR3 |= (1 << 13) | (1 << 0); // ENREF_HSI48, EN_VREFINT
 	while(!(SYSCFG.CFGR3 & (1 << 26))); // REF_HSI48_RDYF
 	
 	// Enable HSI48.
-	RCC.CRRCR |= 1 << 0; // HSI48ON
-	while(!(RCC.CRRCR & (1 << 1))); // HSI48RDY
+	RCC->CRRCR |= 1 << 0; // HSI48ON
+	while(!(RCC->CRRCR & (1 << 1))); // HSI48RDY
 	
 	// Select HSI48 for USB.
-	RCC.CCIPR |= 1 << 26;
+	RCC->CCIPR |= 1 << 26;
 	
 	#endif
 }
@@ -99,30 +99,30 @@ void rcc_init(uint32_t osc_mhz, uint32_t sysclk_mhz) {
 	uint32_t pllp = sysclk_mhz > 192 / 2 ? 0 : 1;
 	
 	// Enable HSE.
-	RCC.CR |= 0x10000;
-	while(!(RCC.CR & 0x20000));
+	RCC->CR |= 0x10000;
+	while(!(RCC->CR & 0x20000));
 	
 	// Configure and enable PLL.
-	RCC.PLLCFGR = 0x20400000 | ((pll_mhz / 48) << 24) | (pllp << 16) | (pll_mhz << 6) | osc_mhz;
-	RCC.CR |= 0x1000000;
-	while(!(RCC.CR & 0x2000000));
+	RCC->PLLCFGR = 0x20400000 | ((pll_mhz / 48) << 24) | (pllp << 16) | (pll_mhz << 6) | osc_mhz;
+	RCC->CR |= 0x1000000;
+	while(!(RCC->CR & 0x2000000));
 	
 	// Switch to PLL.
-	RCC.CFGR |= 0x2;
-	while(!(RCC.CFGR & 0x8));
+	RCC->CFGR |= 0x2;
+	while(!(RCC->CFGR & 0x8));
 	
 	if(sysclk_mhz > 84) {
 		// Set APB1 prescaler to /4.
-		RCC.CFGR |= 5 << 10; // PPRE1
+		RCC->CFGR |= 5 << 10; // PPRE1
 		
 		// Set APB2 prescaler to /2.
-		RCC.CFGR |= 4 << 13; // PPRE2
+		RCC->CFGR |= 4 << 13; // PPRE2
 	} else {
 		// Set APB1 prescaler to /2.
-		RCC.CFGR |= 4 << 10; // PPRE1
+		RCC->CFGR |= 4 << 10; // PPRE1
 		
 		// Set APB2 prescaler to /1.
-		RCC.CFGR |= 0 << 13; // PPRE2
+		RCC->CFGR |= 0 << 13; // PPRE2
 	}
 	
 }
diff --git a/rcc/rcc.h b/rcc/rcc.h
deleted file mode 100644
index a4616f5..0000000
--- a/rcc/rcc.h
+++ /dev/null
@@ -1,428 +0,0 @@
-#ifndef RCC_H
-#define RCC_H
-
-#include <stdint.h>
-
-struct RCC_t {
-	#if defined(STM32F0)
-	volatile uint32_t CR;
-	volatile uint32_t CFGR;
-	volatile uint32_t CIR;
-	volatile uint32_t APB2RSTR;
-	volatile uint32_t APB1RSTR;
-	volatile uint32_t AHBENR;
-	volatile uint32_t APB2ENR;
-	volatile uint32_t APB1ENR;
-	volatile uint32_t BDCR;
-	volatile uint32_t CSR;
-	volatile uint32_t AHBRSTR;
-	volatile uint32_t CFGR2;
-	volatile uint32_t CFGR3;
-	volatile uint32_t CR2;
-	#elif defined(STM32F1)
-	volatile uint32_t CR;
-	volatile uint32_t CFGR;
-	volatile uint32_t CIR;
-	volatile uint32_t APB2RSTR;
-	volatile uint32_t APB1RSTR;
-	volatile uint32_t AHBENR;
-	volatile uint32_t APB2ENR;
-	volatile uint32_t APB1ENR;
-	volatile uint32_t BDCR;
-	volatile uint32_t CSR;
-	#elif defined(STM32F3)
-	volatile uint32_t CR;
-	volatile uint32_t CFGR;
-	volatile uint32_t CIR;
-	volatile uint32_t APB2RSTR;
-	volatile uint32_t APB1RSTR;
-	volatile uint32_t AHBENR;
-	volatile uint32_t APB2ENR;
-	volatile uint32_t APB1ENR;
-	volatile uint32_t BDCR;
-	volatile uint32_t CSR;
-	volatile uint32_t AHBRSTR;
-	volatile uint32_t CFGR2;
-	volatile uint32_t CFGR3;
-	#elif defined(STM32F4)
-	volatile uint32_t CR;
-	volatile uint32_t PLLCFGR;
-	volatile uint32_t CFGR;
-	volatile uint32_t CIR;
-	volatile uint32_t AHB1RSTR;
-	volatile uint32_t AHB2RSTR;
-	volatile uint32_t AHB3RSTR;
-	volatile uint32_t AHB4RSTR; // Reserved
-	volatile uint32_t APB1RSTR;
-	volatile uint32_t APB2RSTR;
-	volatile uint32_t APB3RSTR; // Reserved
-	volatile uint32_t APB4RSTR; // Reserved
-	volatile uint32_t AHB1ENR;
-	volatile uint32_t AHB2ENR;
-	volatile uint32_t AHB3ENR;
-	volatile uint32_t AHB4ENR; // Reserved
-	volatile uint32_t APB1ENR;
-	volatile uint32_t APB2ENR;
-	volatile uint32_t APB3ENR; // Reserved
-	volatile uint32_t APB4ENR; // Reserved
-	volatile uint32_t AHB1LPENR;
-	volatile uint32_t AHB2LPENR;
-	volatile uint32_t AHB3LPENR;
-	volatile uint32_t AHB4LPENR; // Reserved
-	volatile uint32_t APB1LPENR;
-	volatile uint32_t APB2LPENR;
-	volatile uint32_t APB3LPENR; // Reserved
-	volatile uint32_t APB4LPENR; // Reserved
-	volatile uint32_t BDCR;
-	volatile uint32_t CSR;
-	volatile uint32_t _1;
-	volatile uint32_t _2;
-	volatile uint32_t SSCGR;
-	volatile uint32_t PLLI2SCFGR;
-	#elif defined(STM32L0)
-	volatile uint32_t CR;
-	volatile uint32_t ICSCR;
-	volatile uint32_t CRRCR;
-	volatile uint32_t CFGR;
-	volatile uint32_t CIER;
-	volatile uint32_t CIFR;
-	volatile uint32_t CICR;
-	volatile uint32_t IOPRSTR;
-	volatile uint32_t AHBRSTR;
-	volatile uint32_t APB2RSTR;
-	volatile uint32_t APB1RSTR;
-	volatile uint32_t IOPENR;
-	volatile uint32_t AHBENR;
-	volatile uint32_t APB2ENR;
-	volatile uint32_t APB1ENR;
-	volatile uint32_t IOPSMENR;
-	volatile uint32_t AHBSMENR;
-	volatile uint32_t APB2SMENR;
-	volatile uint32_t APB1SMENR;
-	volatile uint32_t CCIPR;
-	volatile uint32_t CSR;
-	#endif
-	
-	#if defined(STM32F0)
-		enum AHB_dev {
-		DMA1  = 1 << 0,
-		DMA2  = 1 << 1,
-		SRAM  = 1 << 2,
-		FLITF = 1 << 4,
-		CRC   = 1 << 6,
-		GPIOA = 1 << 17,
-		GPIOB = 1 << 18,
-		GPIOC = 1 << 19,
-		GPIOD = 1 << 20,
-		GPIOE = 1 << 21,
-		GPIOF = 1 << 22,
-		TSC   = 1 << 24,
-	};
-	
-	enum APB1_dev {
-		TIM2   = 1 << 0,
-		TIM3   = 1 << 1,
-		TIM6   = 1 << 4,
-		TIM7   = 1 << 5,
-		TIM14  = 1 << 8,
-		WWDG   = 1 << 11,
-		SPI2   = 1 << 14,
-		USART2 = 1 << 17,
-		USART3 = 1 << 18,
-		USART4 = 1 << 19,
-		USART5 = 1 << 20,
-		I2C1   = 1 << 21,
-		I2C2   = 1 << 22,
-		USB    = 1 << 23,
-		CAN    = 1 << 25,
-		CRS    = 1 << 27,
-		PWR    = 1 << 28,
-		DAC    = 1 << 29,
-		CEC    = 1 << 30,
-	};
-	
-	enum APB2_dev {
-		SYSCFG = 1 << 0,
-		USART6 = 1 << 5,
-		USART7 = 1 << 6,
-		USART8 = 1 << 7,
-		ADC    = 1 << 9,
-		TIM1   = 1 << 11,
-		SPI1   = 1 << 12,
-		USART1 = 1 << 14,
-		TIM15  = 1 << 16,
-		TIM16  = 1 << 17,
-		TIM17  = 1 << 18,
-		DBGMCU = 1 << 22,
-	};
-	
-	#elif defined(STM32F1)
-	enum AHB_dev {
-		DMA1  = 1 << 0,
-		DMA2  = 1 << 1,
-		SRAM  = 1 << 2,
-		FLITF = 1 << 4,
-		CRC   = 1 << 6,
-		FSMC  = 1 << 8,
-		SDIO  = 1 << 10
-	};
-	
-	enum APB1_dev {
-		TIM2   = 1 << 0,
-		TIM3   = 1 << 1,
-		TIM4   = 1 << 2,
-		TIM5   = 1 << 3,
-		TIM6   = 1 << 4,
-		TIM7   = 1 << 5,
-		TIM12  = 1 << 6,
-		TIM13  = 1 << 7,
-		TIM14  = 1 << 8,
-		WWDG   = 1 << 11,
-		SPI2   = 1 << 14,
-		SPI3   = 1 << 15,
-		USART2 = 1 << 17,
-		USART3 = 1 << 18,
-		UART4  = 1 << 19,
-		UART5  = 1 << 20,
-		I2C1   = 1 << 21,
-		I2C2   = 1 << 22,
-		USB    = 1 << 23,
-		CAN    = 1 << 25,
-		BKP    = 1 << 27,
-		PWR    = 1 << 28,
-		DAC    = 1 << 29
-	};
-	
-	enum APB2_dev {
-		AFIO   = 1 << 0,
-		GPIOA  = 1 << 2,
-		GPIOB  = 1 << 3,
-		GPIOC  = 1 << 4,
-		GPIOD  = 1 << 5,
-		GPIOE  = 1 << 6,
-		GPIOF  = 1 << 7,
-		GPIOG  = 1 << 8,
-		ADC1   = 1 << 9,
-		ADC2   = 1 << 10,
-		TIM1   = 1 << 11,
-		SPI1   = 1 << 12,
-		TIM8   = 1 << 13,
-		USART1 = 1 << 14,
-		ADC3   = 1 << 15,
-		TIM9   = 1 << 19,
-		TIM10  = 1 << 20,
-		TIM11  = 1 << 21
-	};
-	#elif defined(STM32F3)
-	enum AHB_dev {
-		DMA1  = 1 << 0,
-		DMA2  = 1 << 1,
-		SRAM  = 1 << 2,
-		FLITF = 1 << 4,
-		CRC   = 1 << 6,
-		GPIOA = 1 << 17,
-		GPIOB = 1 << 18,
-		GPIOC = 1 << 19,
-		GPIOD = 1 << 20,
-		GPIOE = 1 << 21,
-		GPIOF = 1 << 22,
-		TSC   = 1 << 24,
-		ADC12 = 1 << 28,
-		ADC34 = 1 << 29,
-	};
-	
-	enum APB1_dev {
-		TIM2   = 1 << 0,
-		TIM3   = 1 << 1,
-		TIM4   = 1 << 2,
-		TIM6   = 1 << 4,
-		TIM7   = 1 << 5,
-		WWDG   = 1 << 11,
-		SPI2   = 1 << 14,
-		SPI3   = 1 << 15,
-		USART2 = 1 << 17,
-		USART3 = 1 << 18,
-		UART4  = 1 << 19,
-		UART5  = 1 << 20,
-		I2C1   = 1 << 21,
-		I2C2   = 1 << 22,
-		USB    = 1 << 23,
-		CAN    = 1 << 25,
-		PWR    = 1 << 28,
-		DAC    = 1 << 29,
-	};
-	
-	enum APB2_dev {
-		SYSCFG = 1 << 0,
-		TIM1   = 1 << 11,
-		SPI1   = 1 << 12,
-		TIM8   = 1 << 13,
-		USART1 = 1 << 14,
-		TIM15  = 1 << 16,
-		TIM16  = 1 << 17,
-		TIM17  = 1 << 18,
-	};
-	#elif defined(STM32F4)
-	enum AHB1_dev {
-		GPIOA     = 1 << 0,
-		GPIOB     = 1 << 1,
-		GPIOC     = 1 << 2,
-		GPIOD     = 1 << 3,
-		GPIOE     = 1 << 4,
-		GPIOF     = 1 << 5,
-		GPIOG     = 1 << 6,
-		GPIOH     = 1 << 7,
-		GPIOI     = 1 << 8,
-		CRC       = 1 << 12,
-		DMA1      = 1 << 21,
-		DMA2      = 1 << 22,
-		ETHMAC    = 1 << 25,
-		ETHMACTX  = 1 << 26,
-		ETHMACRX  = 1 << 27,
-		ETHMACPTP = 1 << 28,
-		OTGHS     = 1 << 29,
-		OTGHSULPI = 1 << 30,
-	};
-	
-	enum AHB2_dev {
-		DCMI  = 1 << 0,
-		CRYP  = 1 << 4,
-		HASH  = 1 << 5,
-		RNG   = 1 << 6,
-		OTGFS = 1 << 7,
-	};
-	
-	enum AHB3_dev {
-		FSMC  = 1 << 0,
-	};
-	
-	enum APB1_dev {
-		TIM2   = 1 << 0,
-		TIM3   = 1 << 1,
-		TIM4   = 1 << 2,
-		TIM5   = 1 << 3,
-		TIM6   = 1 << 4,
-		TIM7   = 1 << 5,
-		TIM12  = 1 << 6,
-		TIM13  = 1 << 7,
-		TIM14  = 1 << 8,
-		WWDG   = 1 << 11,
-		SPI2   = 1 << 14,
-		SPI3   = 1 << 15,
-		USART2 = 1 << 17,
-		USART3 = 1 << 18,
-		UART4  = 1 << 19,
-		UART5  = 1 << 20,
-		I2C1   = 1 << 21,
-		I2C2   = 1 << 22,
-		I2C3   = 1 << 23,
-		CAN1   = 1 << 25,
-		CAN2   = 1 << 26,
-		PWR    = 1 << 28,
-		DAC    = 1 << 29,
-	};
-	
-	enum APB2_dev {
-		TIM1   = 1 << 0,
-		TIM8   = 1 << 1,
-		USART1 = 1 << 4,
-		USART6 = 1 << 5,
-		ADC    = 1 << 8,
-		SDIO   = 1 << 11,
-		SPI1   = 1 << 12,
-		SYSCFG = 1 << 14,
-		TIM9   = 1 << 16,
-		TIM10  = 1 << 17,
-		TIM11  = 1 << 18,
-	};
-	#elif defined(STM32L0)
-	enum AHB_dev {
-		DMA   = 1 << 0,
-		MIF   = 1 << 8,
-		CRC   = 1 << 12,
-		TOUCH = 1 << 16,
-		RNG   = 1 << 20,
-		CRYP  = 1 << 24,
-	};
-	
-	enum APB1_dev {
-		TIM2    = 1 << 0,
-		TIM6    = 1 << 4,
-		WWDG    = 1 << 11,
-		SPI2    = 1 << 14,
-		USART2  = 1 << 17,
-		LPUART1 = 1 << 18,
-		I2C1    = 1 << 21,
-		I2C2    = 1 << 22,
-		USB     = 1 << 23,
-		CRS     = 1 << 27,
-		PWR     = 1 << 28,
-		DAC     = 1 << 29,
-		LPTIM1  = 1 << 31,
-	};
-	
-	enum APB2_dev {
-		SYSCFG = 1 << 0,
-		TIM21  = 1 << 2,
-		TIM22  = 1 << 5,
-		MIFI   = 1 << 7,
-		ADC    = 1 << 9,
-		SPI1   = 1 << 12,
-		USART1 = 1 << 14,
-		DBG    = 1 << 22,
-	};
-	
-	enum IOP_dev {
-		GPIOA  = 1 << 0,
-		GPIOB  = 1 << 1,
-		GPIOC  = 1 << 2,
-		GPIOD  = 1 << 3,
-		GPIOH  = 1 << 7,
-	};
-	#endif
-	
-	#if defined(STM32F0) || defined(STM32F1) || defined(STM32F3) || defined(STM32L0)
-	inline void enable(AHB_dev dev) {
-		AHBENR |= dev;
-	}
-	#elif defined(STM32F4)
-	inline void enable(AHB1_dev dev) {
-		AHB1ENR |= dev;
-	}
-	
-	inline void enable(AHB2_dev dev) {
-		AHB2ENR |= dev;
-	}
-	
-	inline void enable(AHB3_dev dev) {
-		AHB3ENR |= dev;
-	}
-	#endif
-	inline void enable(APB1_dev dev) {
-		APB1ENR |= dev;
-	}
-	
-	inline void enable(APB2_dev dev) {
-		APB2ENR |= dev;
-	}
-	#if defined(STM32L0)
-	inline void enable(IOP_dev dev) {
-		IOPENR |= dev;
-	}
-	#endif
-};
-
-#if defined(STM32F0) || defined(STM32F1) || defined(STM32F3) || defined(STM32L0)
-static RCC_t& RCC = *(RCC_t*)0x40021000;
-#elif defined(STM32F4)
-static RCC_t& RCC = *(RCC_t*)0x40023800;
-#endif
-
-void rcc_init();
-
-#if defined(STM32F4)
-void rcc_init(uint32_t osc_mhz, uint32_t sysclk_mhz);
-#endif
-
-
-#endif
diff --git a/rcc/rcc_enums.h.j2 b/rcc/rcc_enums.h.j2
new file mode 100644
index 0000000..1d8bed8
--- /dev/null
+++ b/rcc/rcc_enums.h.j2
@@ -0,0 +1,17 @@
+#pragma once
+
+namespace rcc {
+    {% for bus, devices in buses.items() %}
+        enum {{ bus }}_dev {
+            {% for num, name in devices.items() %}
+                {{ name }} = 1 << {{ num }},
+            {% endfor %}
+        };
+
+        template <typename T>
+        void enable(const T& rcc, {{ bus }}_dev dev) {
+            rcc->{{ bus }}ENR |= dev;
+        }
+
+    {% endfor %}
+}
diff --git a/rcc/rcc_reg.h b/rcc/rcc_reg.h
new file mode 100644
index 0000000..f9f3735
--- /dev/null
+++ b/rcc/rcc_reg.h
@@ -0,0 +1,123 @@
+#pragma once
+
+#include <mmio/mmio.h>
+
+#include "rcc_enums.h"
+
+struct RCC_reg_f0_t {
+	volatile uint32_t CR;
+	volatile uint32_t CFGR;
+	volatile uint32_t CIR;
+	volatile uint32_t APB2RSTR;
+	volatile uint32_t APB1RSTR;
+	volatile uint32_t AHBENR;
+	volatile uint32_t APB2ENR;
+	volatile uint32_t APB1ENR;
+	volatile uint32_t BDCR;
+	volatile uint32_t CSR;
+	volatile uint32_t AHBRSTR;
+	volatile uint32_t CFGR2;
+	volatile uint32_t CFGR3;
+	volatile uint32_t CR2;
+};
+
+struct RCC_reg_f1_t {
+	volatile uint32_t CR;
+	volatile uint32_t CFGR;
+	volatile uint32_t CIR;
+	volatile uint32_t APB2RSTR;
+	volatile uint32_t APB1RSTR;
+	volatile uint32_t AHBENR;
+	volatile uint32_t APB2ENR;
+	volatile uint32_t APB1ENR;
+	volatile uint32_t BDCR;
+	volatile uint32_t CSR;
+};
+
+struct RCC_reg_f3_t {
+	volatile uint32_t CR;
+	volatile uint32_t CFGR;
+	volatile uint32_t CIR;
+	volatile uint32_t APB2RSTR;
+	volatile uint32_t APB1RSTR;
+	volatile uint32_t AHBENR;
+	volatile uint32_t APB2ENR;
+	volatile uint32_t APB1ENR;
+	volatile uint32_t BDCR;
+	volatile uint32_t CSR;
+	volatile uint32_t AHBRSTR;
+	volatile uint32_t CFGR2;
+	volatile uint32_t CFGR3;
+};
+
+struct RCC_reg_f4_t {
+	volatile uint32_t CR;
+	volatile uint32_t PLLCFGR;
+	volatile uint32_t CFGR;
+	volatile uint32_t CIR;
+	volatile uint32_t AHB1RSTR;
+	volatile uint32_t AHB2RSTR;
+	volatile uint32_t AHB3RSTR;
+	volatile uint32_t AHB4RSTR; // Reserved
+	volatile uint32_t APB1RSTR;
+	volatile uint32_t APB2RSTR;
+	volatile uint32_t APB3RSTR; // Reserved
+	volatile uint32_t APB4RSTR; // Reserved
+	volatile uint32_t AHB1ENR;
+	volatile uint32_t AHB2ENR;
+	volatile uint32_t AHB3ENR;
+	volatile uint32_t AHB4ENR; // Reserved
+	volatile uint32_t APB1ENR;
+	volatile uint32_t APB2ENR;
+	volatile uint32_t APB3ENR; // Reserved
+	volatile uint32_t APB4ENR; // Reserved
+	volatile uint32_t AHB1LPENR;
+	volatile uint32_t AHB2LPENR;
+	volatile uint32_t AHB3LPENR;
+	volatile uint32_t AHB4LPENR; // Reserved
+	volatile uint32_t APB1LPENR;
+	volatile uint32_t APB2LPENR;
+	volatile uint32_t APB3LPENR; // Reserved
+	volatile uint32_t APB4LPENR; // Reserved
+	volatile uint32_t BDCR;
+	volatile uint32_t CSR;
+	volatile uint32_t _1;
+	volatile uint32_t _2;
+	volatile uint32_t SSCGR;
+	volatile uint32_t PLLI2SCFGR;
+};
+
+struct RCC_reg_l0_t {
+	volatile uint32_t CR;
+	volatile uint32_t ICSCR;
+	volatile uint32_t CRRCR;
+	volatile uint32_t CFGR;
+	volatile uint32_t CIER;
+	volatile uint32_t CIFR;
+	volatile uint32_t CICR;
+	volatile uint32_t IOPRSTR;
+	volatile uint32_t AHBRSTR;
+	volatile uint32_t APB2RSTR;
+	volatile uint32_t APB1RSTR;
+	volatile uint32_t IOPENR;
+	volatile uint32_t AHBENR;
+	volatile uint32_t APB2ENR;
+	volatile uint32_t APB1ENR;
+	volatile uint32_t IOPSMENR;
+	volatile uint32_t AHBSMENR;
+	volatile uint32_t APB2SMENR;
+	volatile uint32_t APB1SMENR;
+	volatile uint32_t CCIPR;
+	volatile uint32_t CSR;
+};
+
+template <typename T>
+class RCC_t : public mmio_ptr<T> {
+    public:
+        using mmio_ptr<T>::ptr;
+
+        template <typename Bus>
+        void enable(Bus dev) const {
+            rcc::enable(*this, dev);
+        }
+};