bsp/raspberrypi: New BSP

1 files changed, 194 insertions, 0 deletions

diff --git a/c/src/lib/libbsp/arm/raspberrypi/include/raspberrypi.h b/c/src/lib/libbsp/arm/raspberrypi/include/raspberrypi.h
new file mode 100644
index 0000000000..44a105ad4b
--- /dev/null
+++ b/c/src/lib/libbsp/arm/raspberrypi/include/raspberrypi.h
@@ -0,0 +1,194 @@
+
+/*
+ * raspberrypi.h
+ *
+ * Copyright (c) 2013 Alan Cudmore.
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *
+ *  http://www.rtems.com/license/LICENSE
+ *
+ */
+
+#ifndef LIBBSP_ARM_RASPBERRYPI_RASPBERRYPI_H
+#define LIBBSP_ARM_RASPBERRYPI_RASPBERRYPI_H
+
+#include <stdint.h>
+#include <bsp/utility.h>
+
+/**
+ * @defgroup raspberrypi_reg Register Definitions
+ *
+ * @ingroup raspberrypi
+ *
+ * @brief Register definitions.
+ *
+ * @{
+ */
+
+/**
+ * @name Register Macros
+ *
+ * @{
+ */
+
+#define BCM2835_REG(x)           (*(volatile uint32_t *)(x))
+#define BCM2835_BIT(n)           (1 << (n))
+
+/** @} */
+
+/**
+ * @name Internal ARM Timer Registers
+ *
+ * @{
+ */
+
+#define BCM2835_CLOCK_FREQ       250000000
+
+#define BCM2835_TIMER_BASE       (0x2000B400)
+
+#define BCM2835_TIMER_LOD        (BCM2835_TIMER_BASE+0x00)
+#define BCM2835_TIMER_VAL        (BCM2835_TIMER_BASE+0x04)
+#define BCM2835_TIMER_CTL        (BCM2835_TIMER_BASE+0x08)
+#define BCM2835_TIMER_CLI        (BCM2835_TIMER_BASE+0x0C)
+#define BCM2835_TIMER_RIS        (BCM2835_TIMER_BASE+0x10)
+#define BCM2835_TIMER_MIS        (BCM2835_TIMER_BASE+0x14)
+#define BCM2835_TIMER_RLD        (BCM2835_TIMER_BASE+0x18)
+#define BCM2835_TIMER_DIV        (BCM2835_TIMER_BASE+0x1C)
+#define BCM2835_TIMER_CNT        (BCM2835_TIMER_BASE+0x20)
+
+#define BCM2835_TIMER_PRESCALE    0xF9
+
+/** @} */
+
+/**
+ * @name GPIO Registers
+ *
+ * @{
+ */
+
+#define BCM2835_GPIO_REGS_BASE   (0x20200000)
+
+#define BCM2835_GPIO_GPFSEL1     (BCM2835_GPIO_REGS_BASE+0x04)
+#define BCM2835_GPIO_GPSET0      (BCM2835_GPIO_REGS_BASE+0x1C)
+#define BCM2835_GPIO_GPCLR0      (BCM2835_GPIO_REGS_BASE+0x28)
+#define BCM2835_GPIO_GPPUD       (BCM2835_GPIO_REGS_BASE+0x94)
+#define BCM2835_GPIO_GPPUDCLK0   (BCM2835_GPIO_REGS_BASE+0x98)
+
+/** @} */
+
+/**
+ * @name AUX Registers
+ *
+ * @{
+ */
+
+#define BCM2835_AUX_BASE         (0x20215000)
+
+#define AUX_ENABLES              (BCM2835_AUX_BASE+0x04)
+#define AUX_MU_IO_REG            (BCM2835_AUX_BASE+0x40)
+#define AUX_MU_IER_REG           (BCM2835_AUX_BASE+0x44)
+#define AUX_MU_IIR_REG           (BCM2835_AUX_BASE+0x48)
+#define AUX_MU_LCR_REG           (BCM2835_AUX_BASE+0x4C)
+#define AUX_MU_MCR_REG           (BCM2835_AUX_BASE+0x50)
+#define AUX_MU_LSR_REG           (BCM2835_AUX_BASE+0x54)
+#define AUX_MU_MSR_REG           (BCM2835_AUX_BASE+0x58)
+#define AUX_MU_SCRATCH           (BCM2835_AUX_BASE+0x5C)
+#define AUX_MU_CNTL_REG          (BCM2835_AUX_BASE+0x60)
+#define AUX_MU_STAT_REG          (BCM2835_AUX_BASE+0x64)
+#define AUX_MU_BAUD_REG          (BCM2835_AUX_BASE+0x68)
+
+/** @} */
+
+
+/**
+ * @name UART 0 (PL011) Registers
+ *
+ * @{
+ */
+
+
+#define BCM2835_UART0_BASE       (0x20201000)
+
+#define BCM2835_UART0_DR         (BCM2835_UART0_BASE+0x00)
+#define BCM2835_UART0_RSRECR     (BCM2835_UART0_BASE+0x04)
+#define BCM2835_UART0_FR         (BCM2835_UART0_BASE+0x18)
+#define BCM2835_UART0_ILPR       (BCM2835_UART0_BASE+0x20)
+#define BCM2835_UART0_IBRD       (BCM2835_UART0_BASE+0x24)
+#define BCM2835_UART0_FBRD       (BCM2835_UART0_BASE+0x28)
+#define BCM2835_UART0_LCRH       (BCM2835_UART0_BASE+0x2C)
+#define BCM2835_UART0_CR         (BCM2835_UART0_BASE+0x30)
+#define BCM2835_UART0_IFLS       (BCM2835_UART0_BASE+0x34)
+#define BCM2835_UART0_IMSC       (BCM2835_UART0_BASE+0x38)
+#define BCM2835_UART0_RIS        (BCM2835_UART0_BASE+0x3C)
+#define BCM2835_UART0_MIS        (BCM2835_UART0_BASE+0x40)
+#define BCM2835_UART0_ICR        (BCM2835_UART0_BASE+0x44)
+#define BCM2835_UART0_DMACR      (BCM2835_UART0_BASE+0x48)
+#define BCM2835_UART0_ITCR       (BCM2835_UART0_BASE+0x80)
+#define BCM2835_UART0_ITIP       (BCM2835_UART0_BASE+0x84)
+#define BCM2835_UART0_ITOP       (BCM2835_UART0_BASE+0x88)
+#define BCM2835_UART0_TDR        (BCM2835_UART0_BASE+0x8C)
+
+#define BCM2835_UART0_MIS_RX    0x10
+#define BCM2835_UART0_MIS_TX    0x20
+#define BCM2835_UART0_IMSC_RX   0x10
+#define BCM2835_UART0_IMSC_TX   0x20
+#define BCM2835_UART0_FR_RXFE   0x10
+#define BCM2835_UART0_FR_TXFF   0x20
+#define BCM2835_UART0_ICR_RX    0x10
+#define BCM2835_UART0_ICR_TX    0x20
+
+
+/** @} */
+
+
+/**
+ * @name IRQ Registers
+ *
+ * @{
+ */
+
+#define BCM2835_BASE_INTC         (0x2000B200)
+
+#define BCM2835_IRQ_BASIC         (BCM2835_BASE_INTC + 0x00)
+#define BCM2835_IRQ_PENDING1      (BCM2835_BASE_INTC + 0x04)
+#define BCM2835_IRQ_PENDING2      (BCM2835_BASE_INTC + 0x08)
+#define BCM2835_IRQ_FIQ_CTRL      (BCM2835_BASE_INTC + 0x0C)
+#define BCM2835_IRQ_ENABLE1       (BCM2835_BASE_INTC + 0x10)
+#define BCM2835_IRQ_ENABLE2       (BCM2835_BASE_INTC + 0x14)
+#define BCM2835_IRQ_ENABLE_BASIC  (BCM2835_BASE_INTC + 0x18)
+#define BCM2835_IRQ_DISABLE1      (BCM2835_BASE_INTC + 0x1C)
+#define BCM2835_IRQ_DISABLE2      (BCM2835_BASE_INTC + 0x20)
+#define BCM2835_IRQ_DISABLE_BASIC (BCM2835_BASE_INTC + 0x24)
+
+/** @} */
+
+
+/**
+ * @name GPU Timer Registers
+ *
+ * @{
+ */
+
+/**
+ * NOTE: The GPU uses Compare registers 0 and 2 for
+ *       it's own RTOS. 1 and 3 are available for use in
+ *       RTEMS.
+ */
+#define BCM2835_GPU_TIMER_BASE    (0x20003000)
+
+#define BCM2835_GPU_TIMER_CS      (BCM2835_TIMER_BASE+0x00)
+#define BCM2835_GPU_TIMER_CLO     (BCM2835_TIMER_BASE+0x04)
+#define BCM2835_GPU_TIMER_CHI     (BCM2835_TIMER_BASE+0x08)
+#define BCM2835_GPU_TIMER_C0      (BCM2835_TIMER_BASE+0x0C)
+#define BCM2835_GPU_TIMER_C1      (BCM2835_TIMER_BASE+0x10)
+#define BCM2835_GPU_TIMER_C2      (BCM2835_TIMER_BASE+0x14)
+#define BCM2835_GPU_TIMER_C3      (BCM2835_TIMER_BASE+0x18)
+
+/** @} */
+
+
+/** @} */
+
+#endif /* LIBBSP_ARM_RASPBERRYPI_RASPBERRYPI_H */