avionic design with actual uboot and tooling

submodule of avionic design uboot bootloader and with included tools to
get you started , read readme.md and readme-tk1-loader.md

u-boot/arch/avr32/cpu/at32ap700x/Makefile

@@ -0,0 +1,7 @@
+#
+# Copyright (C) 2005-2006 Atmel Corporation
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+obj-y	:= portmux.o clk.o mmu.o

u-boot/arch/avr32/cpu/at32ap700x/clk.c

@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2005-2008 Atmel Corporation
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+#include <common.h>
+
+#include <asm/io.h>
+
+#include <asm/arch/clk.h>
+#include <asm/arch/hardware.h>
+#include <asm/arch/portmux.h>
+
+#include "sm.h"
+
+void clk_init(void)
+{
+	uint32_t cksel;
+
+	/* in case of soft resets, disable watchdog */
+	sm_writel(WDT_CTRL, SM_BF(KEY, 0x55));
+	sm_writel(WDT_CTRL, SM_BF(KEY, 0xaa));
+
+#ifdef CONFIG_PLL
+	/* Initialize the PLL */
+	sm_writel(PM_PLL0, (SM_BF(PLLCOUNT, CONFIG_SYS_PLL0_SUPPRESS_CYCLES)
+			    | SM_BF(PLLMUL, CONFIG_SYS_PLL0_MUL - 1)
+			    | SM_BF(PLLDIV, CONFIG_SYS_PLL0_DIV - 1)
+			    | SM_BF(PLLOPT, CONFIG_SYS_PLL0_OPT)
+			    | SM_BF(PLLOSC, 0)
+			    | SM_BIT(PLLEN)));
+
+	/* Wait for lock */
+	while (!(sm_readl(PM_ISR) & SM_BIT(LOCK0))) ;
+#endif
+
+	/* Set up clocks for the CPU and all peripheral buses */
+	cksel = 0;
+	if (CONFIG_SYS_CLKDIV_CPU)
+		cksel |= SM_BIT(CPUDIV) | SM_BF(CPUSEL, CONFIG_SYS_CLKDIV_CPU - 1);
+	if (CONFIG_SYS_CLKDIV_HSB)
+		cksel |= SM_BIT(HSBDIV) | SM_BF(HSBSEL, CONFIG_SYS_CLKDIV_HSB - 1);
+	if (CONFIG_SYS_CLKDIV_PBA)
+		cksel |= SM_BIT(PBADIV) | SM_BF(PBASEL, CONFIG_SYS_CLKDIV_PBA - 1);
+	if (CONFIG_SYS_CLKDIV_PBB)
+		cksel |= SM_BIT(PBBDIV) | SM_BF(PBBSEL, CONFIG_SYS_CLKDIV_PBB - 1);
+	sm_writel(PM_CKSEL, cksel);
+
+#ifdef CONFIG_PLL
+	/* Use PLL0 as main clock */
+	sm_writel(PM_MCCTRL, SM_BIT(PLLSEL));
+
+#ifdef CONFIG_LCD
+	/* Set up pixel clock for the LCDC */
+	sm_writel(PM_GCCTRL(7), SM_BIT(PLLSEL) | SM_BIT(CEN));
+#endif
+#endif
+}
+
+unsigned long __gclk_set_rate(unsigned int id, enum gclk_parent parent,
+		unsigned long rate, unsigned long parent_rate)
+{
+	unsigned long divider;
+
+	if (rate == 0 || parent_rate == 0) {
+		sm_writel(PM_GCCTRL(id), 0);
+		return 0;
+	}
+
+	divider = (parent_rate + rate / 2) / rate;
+	if (divider <= 1) {
+		sm_writel(PM_GCCTRL(id), parent | SM_BIT(CEN));
+		rate = parent_rate;
+	} else {
+		divider = min(255UL, divider / 2 - 1);
+		sm_writel(PM_GCCTRL(id), parent | SM_BIT(CEN) | SM_BIT(DIVEN)
+				| SM_BF(DIV, divider));
+		rate = parent_rate / (2 * (divider + 1));
+	}
+
+	return rate;
+}

u-boot/arch/avr32/cpu/at32ap700x/mmu.c

@@ -0,0 +1,78 @@
+#include <common.h>
+#include <asm/arch/mmu.h>
+#include <asm/sysreg.h>
+
+void mmu_init_r(unsigned long dest_addr)
+{
+	uintptr_t	vmr_table_addr;
+
+	/* Round monitor address down to the nearest page boundary */
+	dest_addr &= MMU_PAGE_ADDR_MASK;
+
+	/* Initialize TLB entry 0 to cover the monitor, and lock it */
+	sysreg_write(TLBEHI, dest_addr | SYSREG_BIT(TLBEHI_V));
+	sysreg_write(TLBELO, dest_addr | MMU_VMR_CACHE_WRBACK);
+	sysreg_write(MMUCR, SYSREG_BF(DRP, 0) | SYSREG_BF(DLA, 1)
+			| SYSREG_BIT(MMUCR_S) | SYSREG_BIT(M));
+	__builtin_tlbw();
+
+	/*
+	 * Calculate the address of the VM range table in a PC-relative
+	 * manner to make sure we hit the SDRAM and not the flash.
+	 */
+	vmr_table_addr = (uintptr_t)&mmu_vmr_table;
+	sysreg_write(PTBR, vmr_table_addr);
+	printf("VMR table @ 0x%08lx\n", vmr_table_addr);
+
+	/* Enable paging */
+	sysreg_write(MMUCR, SYSREG_BF(DRP, 1) | SYSREG_BF(DLA, 1)
+			| SYSREG_BIT(MMUCR_S) | SYSREG_BIT(M) | SYSREG_BIT(E));
+}
+
+int mmu_handle_tlb_miss(void)
+{
+	const struct mmu_vm_range *vmr_table;
+	const struct mmu_vm_range *vmr;
+	unsigned int fault_pgno;
+	int first, last;
+
+	fault_pgno = sysreg_read(TLBEAR) >> MMU_PAGE_SHIFT;
+	vmr_table = (const struct mmu_vm_range *)sysreg_read(PTBR);
+
+	/* Do a binary search through the VM ranges */
+	first = 0;
+	last = CONFIG_SYS_NR_VM_REGIONS;
+	while (first < last) {
+		unsigned int start;
+		int middle;
+
+		/* Pick the entry in the middle of the remaining range */
+		middle = (first + last) >> 1;
+		vmr = &vmr_table[middle];
+		start = vmr->virt_pgno;
+
+		/* Do the bisection thing */
+		if (fault_pgno < start) {
+			last = middle;
+		} else if (fault_pgno >= (start + vmr->nr_pages)) {
+			first = middle + 1;
+		} else {
+			/* Got it; let's slam it into the TLB */
+			uint32_t tlbelo;
+
+			tlbelo = vmr->phys & ~MMU_PAGE_ADDR_MASK;
+			tlbelo |= fault_pgno << MMU_PAGE_SHIFT;
+			sysreg_write(TLBELO, tlbelo);
+			__builtin_tlbw();
+
+			/* Zero means success */
+			return 0;
+		}
+	}
+
+	/*
+	 * Didn't find any matching entries. Return a nonzero value to
+	 * indicate that this should be treated as a fatal exception.
+	 */
+	return -1;
+}

u-boot/arch/avr32/cpu/at32ap700x/portmux.c

@@ -0,0 +1,278 @@
+/*
+ * Copyright (C) 2006, 2008 Atmel Corporation
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+#include <common.h>
+
+#include <asm/io.h>
+
+#include <asm/arch/chip-features.h>
+#include <asm/arch/hardware.h>
+#include <asm/arch/portmux.h>
+
+/*
+ * Lots of small functions here. We depend on --gc-sections getting
+ * rid of the ones we don't need.
+ */
+void portmux_enable_ebi(unsigned int bus_width, unsigned int addr_width,
+		unsigned long flags, unsigned long drive_strength)
+{
+	unsigned long porte_mask = 0;
+
+	if (bus_width > 16)
+		portmux_select_peripheral(PORTMUX_PORT_E, 0xffff,
+				PORTMUX_FUNC_A, PORTMUX_BUSKEEPER);
+	if (addr_width > 23)
+		porte_mask |= (((1 << (addr_width - 23)) - 1) & 7) << 16;
+	if (flags & PORTMUX_EBI_CS(2))
+		porte_mask |= 1 << 25;
+	if (flags & PORTMUX_EBI_CS(4))
+		porte_mask |= 1 << 21;
+	if (flags & PORTMUX_EBI_CS(5))
+		porte_mask |= 1 << 22;
+	if (flags & (PORTMUX_EBI_CF(0) | PORTMUX_EBI_CF(1)))
+		porte_mask |= (1 << 19) | (1 << 20) | (1 << 23);
+
+	portmux_select_peripheral(PORTMUX_PORT_E, porte_mask,
+			PORTMUX_FUNC_A, 0);
+
+	if (flags & PORTMUX_EBI_NWAIT)
+		portmux_select_peripheral(PORTMUX_PORT_E, 1 << 24,
+				PORTMUX_FUNC_A, PORTMUX_PULL_UP);
+}
+
+#ifdef AT32AP700x_CHIP_HAS_MACB
+void portmux_enable_macb0(unsigned long flags, unsigned long drive_strength)
+{
+	unsigned long portc_mask;
+
+	portc_mask = (1 << 3)	/* TXD0	*/
+		| (1 << 4)	/* TXD1	*/
+		| (1 << 7)	/* TXEN	*/
+		| (1 << 8)	/* TXCK */
+		| (1 << 9)	/* RXD0	*/
+		| (1 << 10)	/* RXD1	*/
+		| (1 << 13)	/* RXER	*/
+		| (1 << 15)	/* RXDV	*/
+		| (1 << 16)	/* MDC	*/
+		| (1 << 17);	/* MDIO	*/
+
+	if (flags & PORTMUX_MACB_MII)
+		portc_mask |= (1 << 0)	/* COL	*/
+			| (1 << 1)	/* CRS	*/
+			| (1 << 2)	/* TXER	*/
+			| (1 << 5)	/* TXD2	*/
+			| (1 << 6)	/* TXD3 */
+			| (1 << 11)	/* RXD2	*/
+			| (1 << 12)	/* RXD3	*/
+			| (1 << 14);	/* RXCK	*/
+
+	if (flags & PORTMUX_MACB_SPEED)
+		portc_mask |= (1 << 18);/* SPD	*/
+
+	/* REVISIT: Some pins are probably pure outputs */
+	portmux_select_peripheral(PORTMUX_PORT_C, portc_mask,
+			PORTMUX_FUNC_A, PORTMUX_BUSKEEPER);
+}
+
+void portmux_enable_macb1(unsigned long flags, unsigned long drive_strength)
+{
+	unsigned long portc_mask = 0;
+	unsigned long portd_mask;
+
+	portd_mask = (1 << 13)	/* TXD0	*/
+		| (1 << 14)	/* TXD1	*/
+		| (1 << 11)	/* TXEN	*/
+		| (1 << 12)	/* TXCK */
+		| (1 << 10)	/* RXD0	*/
+		| (1 << 6)	/* RXD1	*/
+		| (1 << 5)	/* RXER	*/
+		| (1 << 4)	/* RXDV	*/
+		| (1 << 3)	/* MDC	*/
+		| (1 << 2);	/* MDIO	*/
+
+	if (flags & PORTMUX_MACB_MII)
+		portc_mask = (1 << 19)	/* COL	*/
+			| (1 << 23)	/* CRS	*/
+			| (1 << 26)	/* TXER	*/
+			| (1 << 27)	/* TXD2	*/
+			| (1 << 28)	/* TXD3 */
+			| (1 << 29)	/* RXD2	*/
+			| (1 << 30)	/* RXD3	*/
+			| (1 << 24);	/* RXCK	*/
+
+	if (flags & PORTMUX_MACB_SPEED)
+		portd_mask |= (1 << 15);/* SPD	*/
+
+	/* REVISIT: Some pins are probably pure outputs */
+	portmux_select_peripheral(PORTMUX_PORT_D, portd_mask,
+			PORTMUX_FUNC_B, PORTMUX_BUSKEEPER);
+	portmux_select_peripheral(PORTMUX_PORT_C, portc_mask,
+			PORTMUX_FUNC_B, PORTMUX_BUSKEEPER);
+}
+#endif
+
+#ifdef AT32AP700x_CHIP_HAS_MMCI
+void portmux_enable_mmci(unsigned int slot, unsigned long flags,
+		unsigned long drive_strength)
+{
+	unsigned long mask;
+	unsigned long portmux_flags = PORTMUX_PULL_UP;
+
+	/* First, the common CLK signal. It doesn't need a pull-up */
+	portmux_select_peripheral(PORTMUX_PORT_A, 1 << 10,
+			PORTMUX_FUNC_A, 0);
+
+	if (flags & PORTMUX_MMCI_EXT_PULLUP)
+		portmux_flags = 0;
+
+	/* Then, the per-slot signals */
+	switch (slot) {
+	case 0:
+		mask = (1 << 11) | (1 << 12);	/* CMD and DATA0 */
+		if (flags & PORTMUX_MMCI_4BIT)
+			/* DATA1..DATA3 */
+			mask |= (1 << 13) | (1 << 14) | (1 << 15);
+		portmux_select_peripheral(PORTMUX_PORT_A, mask,
+				PORTMUX_FUNC_A, portmux_flags);
+		break;
+	case 1:
+		mask = (1 << 6) | (1 << 7);	/* CMD and DATA0 */
+		if (flags & PORTMUX_MMCI_4BIT)
+			/* DATA1..DATA3 */
+			mask |= (1 << 8) | (1 << 9) | (1 << 10);
+		portmux_select_peripheral(PORTMUX_PORT_B, mask,
+				PORTMUX_FUNC_B, portmux_flags);
+		break;
+	}
+}
+#endif
+
+#ifdef AT32AP700x_CHIP_HAS_SPI
+void portmux_enable_spi0(unsigned long cs_mask, unsigned long drive_strength)
+{
+	unsigned long pin_mask;
+
+	/* MOSI and SCK */
+	portmux_select_peripheral(PORTMUX_PORT_A, (1 << 1) | (1 << 2),
+			PORTMUX_FUNC_A, 0);
+	/* MISO may float */
+	portmux_select_peripheral(PORTMUX_PORT_A, 1 << 0,
+			PORTMUX_FUNC_A, PORTMUX_BUSKEEPER);
+
+	/* Set up NPCSx as GPIO outputs, initially high */
+	pin_mask = (cs_mask & 7) << 3;
+	if (cs_mask & (1 << 3))
+		pin_mask |= 1 << 20;
+
+	portmux_select_gpio(PORTMUX_PORT_A, pin_mask,
+			PORTMUX_DIR_OUTPUT | PORTMUX_INIT_HIGH);
+}
+
+void portmux_enable_spi1(unsigned long cs_mask, unsigned long drive_strength)
+{
+	/* MOSI and SCK */
+	portmux_select_peripheral(PORTMUX_PORT_B, (1 << 1) | (1 << 5),
+			PORTMUX_FUNC_B, 0);
+	/* MISO may float */
+	portmux_select_peripheral(PORTMUX_PORT_B, 1 << 0,
+			PORTMUX_FUNC_B, PORTMUX_BUSKEEPER);
+
+	/* Set up NPCSx as GPIO outputs, initially high */
+	portmux_select_gpio(PORTMUX_PORT_B, (cs_mask & 7) << 2,
+			PORTMUX_DIR_OUTPUT | PORTMUX_INIT_HIGH);
+	portmux_select_gpio(PORTMUX_PORT_A, (cs_mask & 8) << (27 - 3),
+			PORTMUX_DIR_OUTPUT | PORTMUX_INIT_HIGH);
+}
+#endif
+
+#ifdef AT32AP700x_CHIP_HAS_LCDC
+void portmux_enable_lcdc(int pin_config)
+{
+	unsigned long portc_mask = 0;
+	unsigned long portd_mask = 0;
+	unsigned long porte_mask = 0;
+
+	switch (pin_config) {
+	case 0:
+		portc_mask = (1 << 19)	/* CC     */
+			| (1 << 20)	/* HSYNC  */
+			| (1 << 21)	/* PCLK   */
+			| (1 << 22)	/* VSYNC  */
+			| (1 << 23)	/* DVAL   */
+			| (1 << 24)	/* MODE   */
+			| (1 << 25)	/* PWR    */
+			| (1 << 26)	/* DATA0  */
+			| (1 << 27)	/* DATA1  */
+			| (1 << 28)	/* DATA2  */
+			| (1 << 29)	/* DATA3  */
+			| (1 << 30)	/* DATA4  */
+			| (1 << 31);	/* DATA5  */
+
+		portd_mask = (1 << 0)	/* DATA6  */
+			| (1 << 1)	/* DATA7  */
+			| (1 << 2)	/* DATA8  */
+			| (1 << 3)	/* DATA9  */
+			| (1 << 4)	/* DATA10 */
+			| (1 << 5)	/* DATA11 */
+			| (1 << 6)	/* DATA12 */
+			| (1 << 7)	/* DATA13 */
+			| (1 << 8)	/* DATA14 */
+			| (1 << 9)	/* DATA15 */
+			| (1 << 10)	/* DATA16 */
+			| (1 << 11)	/* DATA17 */
+			| (1 << 12)	/* DATA18 */
+			| (1 << 13)	/* DATA19 */
+			| (1 << 14)	/* DATA20 */
+			| (1 << 15)	/* DATA21 */
+			| (1 << 16)	/* DATA22 */
+			| (1 << 17);	/* DATA23 */
+		break;
+
+	case 1:
+		portc_mask = (1 << 20)	/* HSYNC  */
+			| (1 << 21)	/* PCLK   */
+			| (1 << 22)	/* VSYNC  */
+			| (1 << 25)	/* PWR    */
+			| (1 << 31);	/* DATA5  */
+
+		portd_mask = (1 << 0)	/* DATA6  */
+			| (1 << 1)	/* DATA7  */
+			| (1 << 7)	/* DATA13 */
+			| (1 << 8)	/* DATA14 */
+			| (1 << 9)	/* DATA15 */
+			| (1 << 16)	/* DATA22 */
+			| (1 << 17);	/* DATA23 */
+
+		porte_mask = (1 << 0)	/* CC     */
+			| (1 << 1)	/* DVAL   */
+			| (1 << 2)	/* MODE   */
+			| (1 << 3)	/* DATA0  */
+			| (1 << 4)	/* DATA1  */
+			| (1 << 5)	/* DATA2  */
+			| (1 << 6)	/* DATA3  */
+			| (1 << 7)	/* DATA4  */
+			| (1 << 8)	/* DATA8  */
+			| (1 << 9)	/* DATA9  */
+			| (1 << 10)	/* DATA10 */
+			| (1 << 11)	/* DATA11 */
+			| (1 << 12)	/* DATA12 */
+			| (1 << 13)	/* DATA16 */
+			| (1 << 14)	/* DATA17 */
+			| (1 << 15)	/* DATA18 */
+			| (1 << 16)	/* DATA19 */
+			| (1 << 17)	/* DATA20 */
+			| (1 << 18);	/* DATA21 */
+		break;
+	}
+
+	/* REVISIT: Some pins are probably pure outputs */
+	portmux_select_peripheral(PORTMUX_PORT_C, portc_mask,
+			PORTMUX_FUNC_A, PORTMUX_BUSKEEPER);
+	portmux_select_peripheral(PORTMUX_PORT_D, portd_mask,
+			PORTMUX_FUNC_A, PORTMUX_BUSKEEPER);
+	portmux_select_peripheral(PORTMUX_PORT_E, porte_mask,
+			PORTMUX_FUNC_B, PORTMUX_BUSKEEPER);
+}
+#endif

u-boot/arch/avr32/cpu/at32ap700x/sm.h

@@ -0,0 +1,204 @@
+/*
+ * Register definitions for System Manager
+ */
+#ifndef __CPU_AT32AP_SM_H__
+#define __CPU_AT32AP_SM_H__
+
+/* SM register offsets */
+#define SM_PM_MCCTRL				0x0000
+#define SM_PM_CKSEL				0x0004
+#define SM_PM_CPU_MASK				0x0008
+#define SM_PM_HSB_MASK				0x000c
+#define SM_PM_PBA_MASK				0x0010
+#define SM_PM_PBB_MASK				0x0014
+#define SM_PM_PLL0				0x0020
+#define SM_PM_PLL1				0x0024
+#define SM_PM_VCTRL				0x0030
+#define SM_PM_VMREF				0x0034
+#define SM_PM_VMV				0x0038
+#define SM_PM_IER				0x0040
+#define SM_PM_IDR				0x0044
+#define SM_PM_IMR				0x0048
+#define SM_PM_ISR				0x004c
+#define SM_PM_ICR				0x0050
+#define SM_PM_GCCTRL(x)				(0x0060 + 4 * x)
+#define SM_RTC_CTRL				0x0080
+#define SM_RTC_VAL				0x0084
+#define SM_RTC_TOP				0x0088
+#define SM_RTC_IER				0x0090
+#define SM_RTC_IDR				0x0094
+#define SM_RTC_IMR				0x0098
+#define SM_RTC_ISR				0x009c
+#define SM_RTC_ICR				0x00a0
+#define SM_WDT_CTRL				0x00b0
+#define SM_WDT_CLR				0x00b4
+#define SM_WDT_EXT				0x00b8
+#define SM_RC_RCAUSE				0x00c0
+#define SM_EIM_IER				0x0100
+#define SM_EIM_IDR				0x0104
+#define SM_EIM_IMR				0x0108
+#define SM_EIM_ISR				0x010c
+#define SM_EIM_ICR				0x0110
+#define SM_EIM_MODE				0x0114
+#define SM_EIM_EDGE				0x0118
+#define SM_EIM_LEVEL				0x011c
+#define SM_EIM_TEST				0x0120
+#define SM_EIM_NMIC				0x0124
+
+/* Bitfields in PM_CKSEL */
+#define SM_CPUSEL_OFFSET			0
+#define SM_CPUSEL_SIZE				3
+#define SM_CPUDIV_OFFSET			7
+#define SM_CPUDIV_SIZE				1
+#define SM_HSBSEL_OFFSET			8
+#define SM_HSBSEL_SIZE				3
+#define SM_HSBDIV_OFFSET			15
+#define SM_HSBDIV_SIZE				1
+#define SM_PBASEL_OFFSET			16
+#define SM_PBASEL_SIZE				3
+#define SM_PBADIV_OFFSET			23
+#define SM_PBADIV_SIZE				1
+#define SM_PBBSEL_OFFSET			24
+#define SM_PBBSEL_SIZE				3
+#define SM_PBBDIV_OFFSET			31
+#define SM_PBBDIV_SIZE				1
+
+/* Bitfields in PM_PLL0 */
+#define SM_PLLEN_OFFSET				0
+#define SM_PLLEN_SIZE				1
+#define SM_PLLOSC_OFFSET			1
+#define SM_PLLOSC_SIZE				1
+#define SM_PLLOPT_OFFSET			2
+#define SM_PLLOPT_SIZE				3
+#define SM_PLLDIV_OFFSET			8
+#define SM_PLLDIV_SIZE				8
+#define SM_PLLMUL_OFFSET			16
+#define SM_PLLMUL_SIZE				8
+#define SM_PLLCOUNT_OFFSET			24
+#define SM_PLLCOUNT_SIZE			6
+#define SM_PLLTEST_OFFSET			31
+#define SM_PLLTEST_SIZE				1
+
+/* Bitfields in PM_VCTRL */
+#define SM_VAUTO_OFFSET				0
+#define SM_VAUTO_SIZE				1
+#define SM_PM_VCTRL_VAL_OFFSET			8
+#define SM_PM_VCTRL_VAL_SIZE			7
+
+/* Bitfields in PM_VMREF */
+#define SM_REFSEL_OFFSET			0
+#define SM_REFSEL_SIZE				4
+
+/* Bitfields in PM_VMV */
+#define SM_PM_VMV_VAL_OFFSET			0
+#define SM_PM_VMV_VAL_SIZE			8
+
+/* Bitfields in PM_ICR */
+#define SM_LOCK0_OFFSET				0
+#define SM_LOCK0_SIZE				1
+#define SM_LOCK1_OFFSET				1
+#define SM_LOCK1_SIZE				1
+#define SM_WAKE_OFFSET				2
+#define SM_WAKE_SIZE				1
+#define SM_VOK_OFFSET				3
+#define SM_VOK_SIZE				1
+#define SM_VMRDY_OFFSET				4
+#define SM_VMRDY_SIZE				1
+#define SM_CKRDY_OFFSET				5
+#define SM_CKRDY_SIZE				1
+
+/* Bitfields in PM_GCCTRL */
+#define SM_OSCSEL_OFFSET			0
+#define SM_OSCSEL_SIZE				1
+#define SM_PLLSEL_OFFSET			1
+#define SM_PLLSEL_SIZE				1
+#define SM_CEN_OFFSET				2
+#define SM_CEN_SIZE				1
+#define SM_CPC_OFFSET				3
+#define SM_CPC_SIZE				1
+#define SM_DIVEN_OFFSET				4
+#define SM_DIVEN_SIZE				1
+#define SM_DIV_OFFSET				8
+#define SM_DIV_SIZE				8
+
+/* Bitfields in RTC_CTRL */
+#define SM_PCLR_OFFSET				1
+#define SM_PCLR_SIZE				1
+#define SM_TOPEN_OFFSET				2
+#define SM_TOPEN_SIZE				1
+#define SM_CLKEN_OFFSET				3
+#define SM_CLKEN_SIZE				1
+#define SM_PSEL_OFFSET				8
+#define SM_PSEL_SIZE				16
+
+/* Bitfields in RTC_VAL */
+#define SM_RTC_VAL_VAL_OFFSET			0
+#define SM_RTC_VAL_VAL_SIZE			31
+
+/* Bitfields in RTC_TOP */
+#define SM_RTC_TOP_VAL_OFFSET			0
+#define SM_RTC_TOP_VAL_SIZE			32
+
+/* Bitfields in RTC_ICR */
+#define SM_TOPI_OFFSET				0
+#define SM_TOPI_SIZE				1
+
+/* Bitfields in WDT_CTRL */
+#define SM_KEY_OFFSET				24
+#define SM_KEY_SIZE				8
+
+/* Bitfields in RC_RCAUSE */
+#define SM_POR_OFFSET				0
+#define SM_POR_SIZE				1
+#define SM_BOD_OFFSET				1
+#define SM_BOD_SIZE				1
+#define SM_EXT_OFFSET				2
+#define SM_EXT_SIZE				1
+#define SM_WDT_OFFSET				3
+#define SM_WDT_SIZE				1
+#define SM_NTAE_OFFSET				4
+#define SM_NTAE_SIZE				1
+#define SM_SERP_OFFSET				5
+#define SM_SERP_SIZE				1
+
+/* Bitfields in EIM_EDGE */
+#define SM_INT0_OFFSET				0
+#define SM_INT0_SIZE				1
+#define SM_INT1_OFFSET				1
+#define SM_INT1_SIZE				1
+#define SM_INT2_OFFSET				2
+#define SM_INT2_SIZE				1
+#define SM_INT3_OFFSET				3
+#define SM_INT3_SIZE				1
+
+/* Bitfields in EIM_LEVEL */
+
+/* Bitfields in EIM_TEST */
+#define SM_TESTEN_OFFSET			31
+#define SM_TESTEN_SIZE				1
+
+/* Bitfields in EIM_NMIC */
+#define SM_EN_OFFSET				0
+#define SM_EN_SIZE				1
+
+/* Bit manipulation macros */
+#define SM_BIT(name)					\
+	(1 << SM_##name##_OFFSET)
+#define SM_BF(name,value)				\
+	(((value) & ((1 << SM_##name##_SIZE) - 1))	\
+	 << SM_##name##_OFFSET)
+#define SM_BFEXT(name,value)				\
+	(((value) >> SM_##name##_OFFSET)		\
+	 & ((1 << SM_##name##_SIZE) - 1))
+#define SM_BFINS(name,value,old)			\
+	(((old) & ~(((1 << SM_##name##_SIZE) - 1)	\
+		    << SM_##name##_OFFSET))		\
+	 | SM_BF(name,value))
+
+/* Register access macros */
+#define sm_readl(reg)					\
+	readl((void *)ATMEL_BASE_SM + SM_##reg)
+#define sm_writel(reg,value)				\
+	writel((value), (void *)ATMEL_BASE_SM + SM_##reg)
+
+#endif /* __CPU_AT32AP_SM_H__ */