aboutsummaryrefslogtreecommitdiffstats
path: root/os/common/ports/e200
diff options
context:
space:
mode:
authorGiovanni Di Sirio <gdisirio@gmail.com>2016-02-16 09:59:21 +0000
committerGiovanni Di Sirio <gdisirio@gmail.com>2016-02-16 09:59:21 +0000
commit641f2c372605cf405f0dda8536b45a78e0e5e2e2 (patch)
treef120afff37ef959b367a6023749700d5b618beff /os/common/ports/e200
parent5e24a813bef8d7ac5ca79fe9079db0fc2d2bb8b2 (diff)
downloadChibiOS-641f2c372605cf405f0dda8536b45a78e0e5e2e2.tar.gz
ChibiOS-641f2c372605cf405f0dda8536b45a78e0e5e2e2.tar.bz2
ChibiOS-641f2c372605cf405f0dda8536b45a78e0e5e2e2.zip
Tree reorganization.
git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@8899 35acf78f-673a-0410-8e92-d51de3d6d3f4
Diffstat (limited to 'os/common/ports/e200')
-rw-r--r--os/common/ports/e200/chcore.c54
-rw-r--r--os/common/ports/e200/chcore.h631
-rw-r--r--os/common/ports/e200/compilers/CW/chcoreasm.s124
-rw-r--r--os/common/ports/e200/compilers/CW/chtypes.h93
-rw-r--r--os/common/ports/e200/compilers/CW/ivor.s204
-rw-r--r--os/common/ports/e200/compilers/GCC/chcoreasm.s114
-rw-r--r--os/common/ports/e200/compilers/GCC/chtypes.h93
-rw-r--r--os/common/ports/e200/compilers/GCC/ivor.s258
-rw-r--r--os/common/ports/e200/compilers/GCC/mk/port.mk8
9 files changed, 1579 insertions, 0 deletions
diff --git a/os/common/ports/e200/chcore.c b/os/common/ports/e200/chcore.c
new file mode 100644
index 000000000..5f410b88f
--- /dev/null
+++ b/os/common/ports/e200/chcore.c
@@ -0,0 +1,54 @@
+/*
+ ChibiOS - Copyright (C) 2006..2015 Giovanni Di Sirio.
+
+ This file is part of ChibiOS.
+
+ ChibiOS is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ ChibiOS is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/**
+ * @file e200/chcore.c
+ * @brief Power e200 port code.
+ *
+ * @addtogroup PPC_CORE
+ * @{
+ */
+
+#include "ch.h"
+
+/*===========================================================================*/
+/* Module local definitions. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Module exported variables. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Module local types. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Module local variables. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Module local functions. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Module exported functions. */
+/*===========================================================================*/
+
+/** @} */
diff --git a/os/common/ports/e200/chcore.h b/os/common/ports/e200/chcore.h
new file mode 100644
index 000000000..43e8bb151
--- /dev/null
+++ b/os/common/ports/e200/chcore.h
@@ -0,0 +1,631 @@
+/*
+ ChibiOS - Copyright (C) 2006..2015 Giovanni Di Sirio.
+
+ This file is part of ChibiOS.
+
+ ChibiOS is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ ChibiOS is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/**
+ * @file PPC/chcore.h
+ * @brief Power e200 port macros and structures.
+ *
+ * @addtogroup PPC_CORE
+ * @{
+ */
+
+#ifndef _CHCORE_H_
+#define _CHCORE_H_
+
+#include "intc.h"
+
+/*===========================================================================*/
+/* Module constants. */
+/*===========================================================================*/
+
+/**
+ * @name Port Capabilities and Constants
+ * @{
+ */
+/**
+ * @brief This port supports a realtime counter.
+ */
+#define PORT_SUPPORTS_RT FALSE
+
+/**
+ * @brief Natural alignment constant.
+ * @note It is the minimum alignment for pointer-size variables.
+ */
+#define PORT_NATURAL_ALIGN sizeof (void *)
+
+/**
+ * @brief Stack alignment constant.
+ * @note It is the alignement required for the stack pointer.
+ */
+#define PORT_STACK_ALIGN sizeof (stkalign_t)
+
+/**
+ * @brief Working Areas alignment constant.
+ * @note It is the alignment to be enforced for thread working areas.
+ */
+#define PORT_WORKING_AREA_ALIGN sizeof (stkalign_t)
+/** @} */
+
+/**
+ * @name Architecture and Compiler
+ * @{
+ */
+/**
+ * @brief Macro defining an PPC architecture.
+ */
+#define PORT_ARCHITECTURE_PPC
+
+/**
+ * @brief Macro defining the specific PPC architecture.
+ */
+#define PORT_ARCHITECTURE_PPC_E200
+
+/**
+ * @brief Name of the implemented architecture.
+ */
+#define PORT_ARCHITECTURE_NAME "Power Architecture"
+
+/**
+ * @brief Compiler name and version.
+ */
+#if defined(__GNUC__) || defined(__DOXYGEN__)
+#define PORT_COMPILER_NAME "GCC " __VERSION__
+
+#elif defined(__MWERKS__)
+#define PORT_COMPILER_NAME "CW"
+
+#else
+#error "unsupported compiler"
+#endif
+/** @} */
+
+/**
+ * @name E200 core variants
+ * @{
+ */
+#define PPC_VARIANT_e200z0 200
+#define PPC_VARIANT_e200z2 202
+#define PPC_VARIANT_e200z3 203
+#define PPC_VARIANT_e200z4 204
+/** @} */
+
+/* Inclusion of the PPC implementation specific parameters.*/
+#include "ppcparams.h"
+#include "vectors.h"
+
+/*===========================================================================*/
+/* Module pre-compile time settings. */
+/*===========================================================================*/
+
+/**
+ * @brief Stack size for the system idle thread.
+ * @details This size depends on the idle thread implementation, usually
+ * the idle thread should take no more space than those reserved
+ * by @p PORT_INT_REQUIRED_STACK.
+ * @note In this port it is set to 32 because the idle thread does have
+ * a stack frame when compiling without optimizations. You may
+ * reduce this value to zero when compiling with optimizations.
+ */
+#if !defined(PORT_IDLE_THREAD_STACK_SIZE) || defined(__DOXYGEN__)
+#define PORT_IDLE_THREAD_STACK_SIZE 32
+#endif
+
+/**
+ * @brief Per-thread stack overhead for interrupts servicing.
+ * @details This constant is used in the calculation of the correct working
+ * area size.
+ * @note In this port this value is conservatively is set to 256 because
+ * there is no separate interrupts stack (yet).
+ */
+#if !defined(PORT_INT_REQUIRED_STACK) || defined(__DOXYGEN__)
+#define PORT_INT_REQUIRED_STACK 256
+#endif
+
+/**
+ * @brief Enables an alternative timer implementation.
+ * @details Usually the port uses a timer interface defined in the file
+ * @p chcore_timer.h, if this option is enabled then the file
+ * @p chcore_timer_alt.h is included instead.
+ */
+#if !defined(PORT_USE_ALT_TIMER) || defined(__DOXYGEN__)
+#define PORT_USE_ALT_TIMER FALSE
+#endif
+
+/**
+ * @brief Use VLE instruction set.
+ * @note This parameter is usually set in the Makefile.
+ */
+#if !defined(PPC_USE_VLE) || defined(__DOXYGEN__)
+#define PPC_USE_VLE TRUE
+#endif
+
+/**
+ * @brief Enables the use of the @p WFI instruction.
+ */
+#if !defined(PPC_ENABLE_WFI_IDLE) || defined(__DOXYGEN__)
+#define PPC_ENABLE_WFI_IDLE FALSE
+#endif
+
+/*===========================================================================*/
+/* Derived constants and error checks. */
+/*===========================================================================*/
+
+#if PPC_USE_VLE && !PPC_SUPPORTS_VLE
+#error "the selected MCU does not support VLE instructions set"
+#endif
+
+#if !PPC_USE_VLE && !PPC_SUPPORTS_BOOKE
+#error "the selected MCU does not support BookE instructions set"
+#endif
+
+/**
+ * @brief Name of the architecture variant.
+ */
+#if (PPC_VARIANT == PPC_VARIANT_e200z0) || defined(__DOXYGEN__)
+#define PORT_CORE_VARIANT_NAME "e200z0"
+#elif PPC_VARIANT == PPC_VARIANT_e200z2
+#define PORT_CORE_VARIANT_NAME "e200z2"
+#elif PPC_VARIANT == PPC_VARIANT_e200z3
+#define PORT_CORE_VARIANT_NAME "e200z3"
+#elif PPC_VARIANT == PPC_VARIANT_e200z4
+#define PORT_CORE_VARIANT_NAME "e200z4"
+#else
+#error "unknown or unsupported PowerPC variant specified"
+#endif
+
+/**
+ * @brief Port-specific information string.
+ */
+#if PPC_USE_VLE
+#define PORT_INFO "VLE mode"
+#else
+#define PORT_INFO "Book-E mode"
+#endif
+
+/*===========================================================================*/
+/* Module data structures and types. */
+/*===========================================================================*/
+
+/* The following code is not processed when the file is included from an
+ asm module.*/
+#if !defined(_FROM_ASM_)
+
+/**
+ * @brief Type of stack and memory alignment enforcement.
+ * @note In this architecture the stack alignment is enforced to 64 bits.
+ */
+typedef uint64_t stkalign_t;
+
+/**
+ * @brief Generic PPC register.
+ */
+typedef void *regppc_t;
+
+/**
+ * @brief Mandatory part of a stack frame.
+ */
+struct port_eabi_frame {
+ uint32_t slink; /**< Stack back link. */
+ uint32_t shole; /**< Stack hole for LR storage. */
+};
+
+/**
+ * @brief Interrupt saved context.
+ * @details This structure represents the stack frame saved during a
+ * preemption-capable interrupt handler.
+ * @note R2 and R13 are not saved because those are assumed to be immutable
+ * during the system life cycle.
+ */
+struct port_extctx {
+ struct port_eabi_frame frame;
+ /* Start of the e_stmvsrrw frame (offset 8).*/
+ regppc_t pc;
+ regppc_t msr;
+ /* Start of the e_stmvsprw frame (offset 16).*/
+ regppc_t cr;
+ regppc_t lr;
+ regppc_t ctr;
+ regppc_t xer;
+ /* Start of the e_stmvgprw frame (offset 32).*/
+ regppc_t r0;
+ regppc_t r3;
+ regppc_t r4;
+ regppc_t r5;
+ regppc_t r6;
+ regppc_t r7;
+ regppc_t r8;
+ regppc_t r9;
+ regppc_t r10;
+ regppc_t r11;
+ regppc_t r12;
+ regppc_t padding;
+};
+
+/**
+ * @brief System saved context.
+ * @details This structure represents the inner stack frame during a context
+ * switching.
+ * @note R2 and R13 are not saved because those are assumed to be immutable
+ * during the system life cycle.
+ * @note LR is stored in the caller context so it is not present in this
+ * structure.
+ */
+struct port_intctx {
+ regppc_t cr; /* Part of it is not volatile... */
+ regppc_t r14;
+ regppc_t r15;
+ regppc_t r16;
+ regppc_t r17;
+ regppc_t r18;
+ regppc_t r19;
+ regppc_t r20;
+ regppc_t r21;
+ regppc_t r22;
+ regppc_t r23;
+ regppc_t r24;
+ regppc_t r25;
+ regppc_t r26;
+ regppc_t r27;
+ regppc_t r28;
+ regppc_t r29;
+ regppc_t r30;
+ regppc_t r31;
+ regppc_t padding;
+};
+
+/**
+ * @brief Platform dependent part of the @p thread_t structure.
+ * @details This structure usually contains just the saved stack pointer
+ * defined as a pointer to a @p port_intctx structure.
+ */
+struct port_context {
+ struct port_intctx *sp;
+};
+
+#endif /* !defined(_FROM_ASM_) */
+
+/*===========================================================================*/
+/* Module macros. */
+/*===========================================================================*/
+
+/**
+ * @brief Platform dependent part of the @p chThdCreateI() API.
+ * @details This code usually setup the context switching frame represented
+ * by an @p port_intctx structure.
+ */
+#define PORT_SETUP_CONTEXT(tp, wbase, wtop, pf, arg) { \
+ uint8_t *sp = (uint8_t *)(wtop) - sizeof(struct port_eabi_frame); \
+ ((struct port_eabi_frame *)sp)->slink = 0; \
+ ((struct port_eabi_frame *)sp)->shole = (uint32_t)_port_thread_start; \
+ (tp)->ctx.sp = (struct port_intctx *)(sp - sizeof(struct port_intctx)); \
+ (tp)->ctx.sp->r31 = (regppc_t)(arg); \
+ (tp)->ctx.sp->r30 = (regppc_t)(pf); \
+}
+
+/**
+ * @brief Computes the thread working area global size.
+ * @note There is no need to perform alignments in this macro.
+ */
+#define PORT_WA_SIZE(n) (sizeof(struct port_intctx) + \
+ sizeof(struct port_extctx) + \
+ ((size_t)(n)) + ((size_t)(PORT_INT_REQUIRED_STACK)))
+
+/**
+ * @brief Static working area allocation.
+ * @details This macro is used to allocate a static thread working area
+ * aligned as both position and size.
+ *
+ * @param[in] s the name to be assigned to the stack array
+ * @param[in] n the stack size to be assigned to the thread
+ */
+#define PORT_WORKING_AREA(s, n) \
+ stkalign_t s[THD_WORKING_AREA_SIZE(n) / sizeof (stkalign_t)]
+
+/**
+ * @brief IRQ prologue code.
+ * @details This macro must be inserted at the start of all IRQ handlers
+ * enabled to invoke system APIs.
+ */
+#define PORT_IRQ_PROLOGUE()
+
+/**
+ * @brief IRQ epilogue code.
+ * @details This macro must be inserted at the end of all IRQ handlers
+ * enabled to invoke system APIs.
+ */
+#define PORT_IRQ_EPILOGUE()
+
+/**
+ * @brief IRQ handler function declaration.
+ * @note @p id can be a function name or a vector number depending on the
+ * port implementation.
+ */
+#define PORT_IRQ_HANDLER(id) void id(void)
+
+/**
+ * @brief Fast IRQ handler function declaration.
+ * @note @p id can be a function name or a vector number depending on the
+ * port implementation.
+ */
+#define PORT_FAST_IRQ_HANDLER(id) void id(void)
+
+/**
+ * @brief Priority level verification macro.
+ */
+#define PORT_IRQ_IS_VALID_PRIORITY(n) \
+ (((n) >= 0U) && ((n) < INTC_PRIORITY_LEVELS))
+
+/**
+ * @brief Priority level verification macro.
+ */
+#define PORT_IRQ_IS_VALID_KERNEL_PRIORITY(n) \
+ (((n) >= 0U) && ((n) < INTC_PRIORITY_LEVELS))
+
+/**
+ * @brief Performs a context switch between two threads.
+ * @details This is the most critical code in any port, this function
+ * is responsible for the context switch between 2 threads.
+ * @note The implementation of this code affects <b>directly</b> the context
+ * switch performance so optimize here as much as you can.
+ *
+ * @param[in] ntp the thread to be switched in
+ * @param[in] otp the thread to be switched out
+ */
+#if !CH_DBG_ENABLE_STACK_CHECK || defined(__DOXYGEN__)
+#define port_switch(ntp, otp) _port_switch(ntp, otp)
+#else
+#define port_switch(ntp, otp) { \
+ register struct port_intctx *sp asm ("%r1"); \
+ if ((stkalign_t *)(sp - 1) < otp->stklimit) \
+ chSysHalt("stack overflow"); \
+ _port_switch(ntp, otp); \
+}
+#endif
+
+/**
+ * @brief Writes to a special register.
+ *
+ * @param[in] spr special register number
+ * @param[in] val value to be written, must be an automatic variable
+ */
+#define port_write_spr(spr, val) \
+ asm volatile ("mtspr %[p0], %[p1]" : : [p0] "n" (spr), [p1] "r" (val))
+
+/**
+ * @brief Writes to a special register.
+ *
+ * @param[in] spr special register number
+ * @param[in] val returned value, must be an automatic variable
+ */
+#define port_read_spr(spr, val) \
+ asm volatile ("mfspr %[p0], %[p1]" : [p0] "=r" (val) : [p1] "n" (spr))
+
+/*===========================================================================*/
+/* External declarations. */
+/*===========================================================================*/
+
+/* The following code is not processed when the file is included from an
+ asm module.*/
+#if !defined(_FROM_ASM_)
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+ void _port_switch(thread_t *ntp, thread_t *otp);
+ void _port_thread_start(void);
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* !defined(_FROM_ASM_) */
+
+/*===========================================================================*/
+/* Module inline functions. */
+/*===========================================================================*/
+
+/* The following code is not processed when the file is included from an
+ asm module.*/
+#if !defined(_FROM_ASM_)
+
+/**
+ * @brief Kernel port layer initialization.
+ * @details IVOR4 and IVOR10 initialization.
+ */
+static inline void port_init(void) {
+ uint32_t n;
+ unsigned i;
+
+ /* Initializing the SPRG0 register to zero, it is required for interrupts
+ handling.*/
+ n = 0;
+ port_write_spr(272, n);
+
+#if PPC_SUPPORTS_IVORS
+ {
+ /* The CPU supports IVOR registers, the kernel requires IVOR4 and IVOR10
+ and the initialization is performed here.*/
+ extern void _IVOR4(void);
+ port_write_spr(404, _IVOR4);
+
+#if PPC_SUPPORTS_DECREMENTER
+ extern void _IVOR10(void);
+ port_write_spr(410, _IVOR10);
+#endif
+ }
+#endif
+
+ /* INTC initialization, software vector mode, 4 bytes vectors, starting
+ at priority 0.*/
+ INTC_BCR = 0;
+ for (i = 0; i < PPC_CORE_NUMBER; i++) {
+ INTC_CPR(i) = 0;
+ INTC_IACKR(i) = (uint32_t)_vectors;
+ }
+}
+
+/**
+ * @brief Returns a word encoding the current interrupts status.
+ *
+ * @return The interrupts status.
+ */
+static inline syssts_t port_get_irq_status(void) {
+ uint32_t sts;
+
+ asm volatile ("mfmsr %[p0]" : [p0] "=r" (sts) :);
+ return sts;
+}
+
+/**
+ * @brief Checks the interrupt status.
+ *
+ * @param[in] sts the interrupt status word
+ *
+ * @return The interrupt status.
+ * @retval false the word specified a disabled interrupts status.
+ * @retval true the word specified an enabled interrupts status.
+ */
+static inline bool port_irq_enabled(syssts_t sts) {
+
+ return (bool)((sts & (1 << 15)) != 0);
+}
+
+/**
+ * @brief Determines the current execution context.
+ *
+ * @return The execution context.
+ * @retval false not running in ISR mode.
+ * @retval true running in ISR mode.
+ */
+static inline bool port_is_isr_context(void) {
+ uint32_t sprg0;
+
+ /* The SPRG0 register is increased before entering interrupt handlers and
+ decreased at the end.*/
+ port_read_spr(272, sprg0);
+ return (bool)(sprg0 > 0);
+}
+
+/**
+ * @brief Kernel-lock action.
+ * @note Implemented as global interrupt disable.
+ */
+static inline void port_lock(void) {
+
+ asm volatile ("wrteei 0" : : : "memory");
+}
+
+/**
+ * @brief Kernel-unlock action.
+ * @note Implemented as global interrupt enable.
+ */
+static inline void port_unlock(void) {
+
+ asm volatile("wrteei 1" : : : "memory");
+}
+
+/**
+ * @brief Kernel-lock action from an interrupt handler.
+ * @note Implementation not needed.
+ */
+static inline void port_lock_from_isr(void) {
+
+}
+
+/**
+ * @brief Kernel-unlock action from an interrupt handler.
+ * @note Implementation not needed.
+ */
+static inline void port_unlock_from_isr(void) {
+
+}
+
+/**
+ * @brief Disables all the interrupt sources.
+ * @note Implemented as global interrupt disable.
+ */
+static inline void port_disable(void) {
+
+ asm volatile ("wrteei 0" : : : "memory");
+}
+
+/**
+ * @brief Disables the interrupt sources below kernel-level priority.
+ * @note Same as @p port_disable() in this port, there is no difference
+ * between the two states.
+ */
+static inline void port_suspend(void) {
+
+ asm volatile ("wrteei 0" : : : "memory");
+}
+
+/**
+ * @brief Enables all the interrupt sources.
+ * @note Implemented as global interrupt enable.
+ */
+static inline void port_enable(void) {
+
+ asm volatile ("wrteei 1" : : : "memory");
+}
+
+/**
+ * @brief Enters an architecture-dependent IRQ-waiting mode.
+ * @details The function is meant to return when an interrupt becomes pending.
+ * The simplest implementation is an empty function or macro but this
+ * would not take advantage of architecture-specific power saving
+ * modes.
+ * @note Implemented as an inlined @p wait instruction.
+ */
+static inline void port_wait_for_interrupt(void) {
+
+#if PPC_ENABLE_WFI_IDLE
+ asm volatile ("wait" : : : "memory");
+#endif
+}
+
+/**
+ * @brief Returns the current value of the realtime counter.
+ *
+ * @return The realtime counter value.
+ */
+static inline rtcnt_t port_rt_get_counter_value(void) {
+
+ return 0;
+}
+
+#endif /* !defined(_FROM_ASM_) */
+
+/*===========================================================================*/
+/* Module late inclusions. */
+/*===========================================================================*/
+
+#if !defined(_FROM_ASM_)
+
+#if CH_CFG_ST_TIMEDELTA > 0
+#if !PORT_USE_ALT_TIMER
+#include "chcore_timer.h"
+#else /* PORT_USE_ALT_TIMER */
+#include "chcore_timer_alt.h"
+#endif /* PORT_USE_ALT_TIMER */
+#endif /* CH_CFG_ST_TIMEDELTA > 0 */
+
+#endif /* !defined(_FROM_ASM_) */
+
+#endif /* _CHCORE_H_ */
+
+/** @} */
diff --git a/os/common/ports/e200/compilers/CW/chcoreasm.s b/os/common/ports/e200/compilers/CW/chcoreasm.s
new file mode 100644
index 000000000..85da7221f
--- /dev/null
+++ b/os/common/ports/e200/compilers/CW/chcoreasm.s
@@ -0,0 +1,124 @@
+/*
+ ChibiOS - Copyright (C) 2006..2015 Giovanni Di Sirio.
+
+ This file is part of ChibiOS.
+
+ ChibiOS is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ ChibiOS is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/**
+ * @file e200/compilers/GCC/chcoreasm.s
+ * @brief Power Architecture port low level code.
+ *
+ * @addtogroup PPC_GCC_CORE
+ * @{
+ */
+
+/*===========================================================================*/
+/* Module constants. */
+/*===========================================================================*/
+
+#if !defined(FALSE) || defined(__DOXYGEN__)
+#define FALSE 0
+#endif
+
+#if !defined(TRUE) || defined(__DOXYGEN__)
+#define TRUE 1
+#endif
+
+/*===========================================================================*/
+/* Code section. */
+/*===========================================================================*/
+
+/*
+ * Imports the PPC configuration headers.
+ */
+#define _FROM_ASM_
+#include "chconf.h"
+#include "chcore.h"
+
+#if !defined(__DOXYGEN__)
+
+/*
+ * RTOS-specific context offset.
+ */
+#if defined(_CHIBIOS_RT_CONF_)
+#define CONTEXT_OFFSET 12
+#elif defined(_CHIBIOS_NIL_CONF_)
+#define CONTEXT_OFFSET 0
+#else
+#error "invalid chconf.h"
+#endif
+
+#if defined(_CHIBIOS_RT_CONF_)
+ .extern chThdExit
+#endif
+
+#if PPC_USE_VLE == TRUE
+ .section .text_vle, 16
+
+ .align 2
+ .globl _port_switch
+ .type _port_switch, @function
+_port_switch:
+ e_subi r1, r1, 80
+ se_mflr r0
+ e_stw r0, 84(r1)
+ mfcr r0
+ se_stw r0, 0(r1)
+ e_stmw r14, 4(r1)
+
+ se_stw r1, 12(r4)
+ se_lwz r1, 12(r3)
+
+ e_lmw r14, 4(r1)
+ se_lwz r0, 0(r1)
+ mtcr r0
+ e_lwz r0, 84(r1)
+ se_mtlr r0
+ e_addi r1, r1, 80
+ se_blr
+
+ .align 2
+ .globl _port_thread_start
+ .type _port_thread_start, @function
+_port_thread_start:
+#if CH_DBG_SYSTEM_STATE_CHECK
+ bl _dbg_check_unlock
+#endif
+#if CH_DBG_STATISTICS
+ bl _stats_stop_measure_crit_thd
+#endif
+ wrteei 1
+ mr r3, r31
+ mtctr r30
+ se_bctrl
+#if defined(_CHIBIOS_RT_CONF_)
+ se_li r0, 0
+ e_bl chThdExit
+#endif
+#if defined(_CHIBIOS_NIL_CONF_)
+ se_li r0, 0
+ e_bl chSysHalt
+#endif
+
+#else /* PPC_USE_VLE == FALSE */
+
+#error "non-VLE mode not yet implemented"
+
+#endif /* PPC_USE_VLE == FALSE */
+
+#endif /* !defined(__DOXYGEN__) */
+
+/** @} */
diff --git a/os/common/ports/e200/compilers/CW/chtypes.h b/os/common/ports/e200/compilers/CW/chtypes.h
new file mode 100644
index 000000000..e0fa7f6b3
--- /dev/null
+++ b/os/common/ports/e200/compilers/CW/chtypes.h
@@ -0,0 +1,93 @@
+/*
+ ChibiOS - Copyright (C) 2006..2015 Giovanni Di Sirio.
+
+ This file is part of ChibiOS.
+
+ ChibiOS is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ ChibiOS is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/**
+ * @file e200/compilers/CW/chtypes.h
+ * @brief Power e200 port system types.
+ *
+ * @addtogroup PPC_CW_CORE
+ * @{
+ */
+
+#ifndef _CHTYPES_H_
+#define _CHTYPES_H_
+
+#include <stddef.h>
+#include <stdint.h>
+#include <stdbool.h>
+
+/**
+ * @name Common constants
+ */
+/**
+ * @brief Generic 'false' boolean constant.
+ */
+#if !defined(FALSE) || defined(__DOXYGEN__)
+#define FALSE 0
+#endif
+
+/**
+ * @brief Generic 'true' boolean constant.
+ */
+#if !defined(TRUE) || defined(__DOXYGEN__)
+#define TRUE 1
+#endif
+/** @} */
+
+/**
+ * @name Kernel types
+ * @{
+ */
+typedef uint32_t rtcnt_t; /**< Realtime counter. */
+typedef uint64_t rttime_t; /**< Realtime accumulator. */
+typedef uint32_t syssts_t; /**< System status word. */
+typedef uint8_t tmode_t; /**< Thread flags. */
+typedef uint8_t tstate_t; /**< Thread state. */
+typedef uint8_t trefs_t; /**< Thread references counter. */
+typedef uint8_t tslices_t; /**< Thread time slices counter.*/
+typedef uint32_t tprio_t; /**< Thread priority. */
+typedef int32_t msg_t; /**< Inter-thread message. */
+typedef int32_t eventid_t; /**< Numeric event identifier. */
+typedef uint32_t eventmask_t; /**< Mask of event identifiers. */
+typedef uint32_t eventflags_t; /**< Mask of event flags. */
+typedef int32_t cnt_t; /**< Generic signed counter. */
+typedef uint32_t ucnt_t; /**< Generic unsigned counter. */
+/** @} */
+
+/**
+ * @brief ROM constant modifier.
+ * @note It is set to use the "const" keyword in this port.
+ */
+#define ROMCONST const
+
+/**
+ * @brief Makes functions not inlineable.
+ * @note If the compiler does not support such attribute then the
+ * realtime counter precision could be degraded.
+ */
+#define NOINLINE __attribute__((noinline))
+
+/**
+ * @brief Optimized thread function declaration macro.
+ */
+#define PORT_THD_FUNCTION(tname, arg) void tname(void *arg)
+
+#endif /* _CHTYPES_H_ */
+
+/** @} */
diff --git a/os/common/ports/e200/compilers/CW/ivor.s b/os/common/ports/e200/compilers/CW/ivor.s
new file mode 100644
index 000000000..d8bbcad65
--- /dev/null
+++ b/os/common/ports/e200/compilers/CW/ivor.s
@@ -0,0 +1,204 @@
+/*
+ ChibiOS - Copyright (C) 2006..2015 Giovanni Di Sirio.
+
+ This file is part of ChibiOS.
+
+ ChibiOS is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ ChibiOS is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/**
+ * @file ivor.s
+ * @brief Kernel ISRs.
+ *
+ * @addtogroup PPC_CORE
+ * @{
+ */
+
+/*===========================================================================*/
+/* Module constants. */
+/*===========================================================================*/
+
+#if !defined(FALSE) || defined(__DOXYGEN__)
+#define FALSE 0
+#endif
+
+#if !defined(TRUE) || defined(__DOXYGEN__)
+#define TRUE 1
+#endif
+
+/*===========================================================================*/
+/* Code section. */
+/*===========================================================================*/
+
+/*
+ * Imports the PPC configuration headers.
+ */
+#define _FROM_ASM_
+#include "chconf.h"
+#include "chcore.h"
+
+#if !defined(__DOXYGEN__)
+
+ .extern _stats_start_measure_crit_thd
+ .extern _stats_stop_measure_crit_thd
+ .extern _dbg_check_lock
+ .extern _dbg_check_unlock
+ .extern chSchIsPreemptionRequired
+ .extern chSchDoReschedule
+ .extern chSysTimerHandlerI
+
+ .section .handlers, text_vle
+
+#if PPC_USE_VLE == TRUE
+
+#if PPC_SUPPORTS_DECREMENTER
+ /*
+ * _IVOR10 handler (Book-E decrementer).
+ */
+ .align 16
+ .globl _IVOR10
+ .type _IVOR10, @function
+_IVOR10:
+ /* Saving the external context (port_extctx structure).*/
+ e_stwu r1, -80(r1)
+ e_stmvsrrw 8(r1) /* Saves PC, MSR. */
+ e_stmvsprw 16(r1) /* Saves CR, LR, CTR, XER. */
+ e_stmvgprw 32(r1) /* Saves GPR0, GPR3...GPR12. */
+
+ /* Increasing the SPGR0 register.*/
+ mfspr r0, 272
+ se_addi r0, 1
+ mtspr 272, r0
+
+ /* Reset DIE bit in TSR register.*/
+ e_lis r3, 0x0800 /* DIS bit mask. */
+ mtspr 336, r3 /* TSR register. */
+
+ /* Restoring pre-IRQ MSR register value.*/
+ mfSRR1 r0
+#if !PPC_USE_IRQ_PREEMPTION
+ /* No preemption, keeping EE disabled.*/
+ se_bclri r0, 16 /* EE = bit 16. */
+#endif
+ mtMSR r0
+
+#if CH_DBG_SYSTEM_STATE_CHECK
+ bl _dbg_check_enter_isr
+ bl _dbg_check_lock_from_isr
+#endif
+ /* System tick handler invocation.*/
+ e_bl chSysTimerHandlerI
+#if CH_DBG_SYSTEM_STATE_CHECK
+ bl _dbg_check_unlock_from_isr
+ bl _dbg_check_leave_isr
+#endif
+
+#if PPC_USE_IRQ_PREEMPTION
+ /* Prevents preemption again.*/
+ wrteei 0
+#endif
+
+ /* Jumps to the common IVOR epilogue code.*/
+ se_b _ivor_exit
+#endif /* PPC_SUPPORTS_DECREMENTER */
+
+ /*
+ * _IVOR4 handler (Book-E external interrupt).
+ */
+ .align 16
+ .globl _IVOR4
+ .type _IVOR4, @function
+_IVOR4:
+ /* Saving the external context (port_extctx structure).*/
+ e_stwu r1, -80(r1)
+ e_stmvsrrw 8(r1) /* Saves PC, MSR. */
+ e_stmvsprw 16(r1) /* Saves CR, LR, CTR, XER. */
+ e_stmvgprw 32(r1) /* Saves GPR0, GPR3...GPR12. */
+
+ /* Increasing the SPGR0 register.*/
+ mfspr r0, 272
+ se_addi r0, 1
+ mtspr 272, r0
+
+ /* Software vector address from the INTC register.*/
+ e_lis r3, INTC_IACKR_ADDR@h
+ e_or2i r3, INTC_IACKR_ADDR@l /* IACKR register address. */
+ se_lwz r3, 0(r3) /* IACKR register value. */
+ se_lwz r3, 0(r3)
+ mtCTR r3 /* Software handler address. */
+
+ /* Restoring pre-IRQ MSR register value.*/
+ mfSRR1 r0
+#if !PPC_USE_IRQ_PREEMPTION
+ /* No preemption, keeping EE disabled.*/
+ se_bclri r0, 16 /* EE = bit 16. */
+#endif
+ mtMSR r0
+
+ /* Exectes the software handler.*/
+ se_bctrl
+
+#if PPC_USE_IRQ_PREEMPTION
+ /* Prevents preemption again.*/
+ wrteei 0
+#endif
+
+ /* Informs the INTC that the interrupt has been served.*/
+ mbar 0
+ e_lis r3, INTC_EOIR_ADDR@h
+ e_or2i r3, INTC_EOIR_ADDR@l
+ se_stw r3, 0(r3) /* Writing any value should do. */
+
+ /* Common IVOR epilogue code, context restore.*/
+ .globl _ivor_exit
+_ivor_exit:
+ /* Decreasing the SPGR0 register.*/
+ mfspr r0, 272
+ se_subi r0, 1
+ mtspr 272, r0
+
+#if CH_DBG_STATISTICS
+ e_bl _stats_start_measure_crit_thd
+#endif
+#if CH_DBG_SYSTEM_STATE_CHECK
+ e_bl _dbg_check_lock
+#endif
+ e_bl chSchIsPreemptionRequired
+ e_cmpli cr0, r3, 0
+ se_beq .noresch
+ e_bl chSchDoReschedule
+.noresch:
+#if CH_DBG_SYSTEM_STATE_CHECK
+ e_bl _dbg_check_unlock
+#endif
+#if CH_DBG_STATISTICS
+ e_bl _stats_stop_measure_crit_thd
+#endif
+
+ /* Restoring the external context.*/
+ e_lmvgprw 32(r1) /* Restores GPR0, GPR3...GPR12. */
+ e_lmvsprw 16(r1) /* Restores CR, LR, CTR, XER. */
+ e_lmvsrrw 8(r1) /* Restores PC, MSR. */
+ e_addi r1, r1, 80 /* Back to the previous frame. */
+ se_rfi
+
+#else /* PPC_USE_VLE == FALSE */
+
+#error "non-VLE mode not yet implemented"
+
+#endif /* PPC_USE_VLE == FALSE */
+
+#endif /* !defined(__DOXYGEN__) */
+
+/** @} */
diff --git a/os/common/ports/e200/compilers/GCC/chcoreasm.s b/os/common/ports/e200/compilers/GCC/chcoreasm.s
new file mode 100644
index 000000000..5d915247c
--- /dev/null
+++ b/os/common/ports/e200/compilers/GCC/chcoreasm.s
@@ -0,0 +1,114 @@
+/*
+ ChibiOS - Copyright (C) 2006..2015 Giovanni Di Sirio.
+
+ This file is part of ChibiOS.
+
+ ChibiOS is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ ChibiOS is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/**
+ * @file e200/compilers/GCC/chcoreasm.s
+ * @brief Power Architecture port low level code.
+ *
+ * @addtogroup PPC_GCC_CORE
+ * @{
+ */
+
+/*===========================================================================*/
+/* Module constants. */
+/*===========================================================================*/
+
+#if !defined(FALSE) || defined(__DOXYGEN__)
+#define FALSE 0
+#endif
+
+#if !defined(TRUE) || defined(__DOXYGEN__)
+#define TRUE 1
+#endif
+
+/*===========================================================================*/
+/* Code section. */
+/*===========================================================================*/
+
+#define _FROM_ASM_
+#include "chconf.h"
+#include "chcore.h"
+
+#if !defined(__DOXYGEN__)
+
+/*
+ * RTOS-specific context offset.
+ */
+#if defined(_CHIBIOS_RT_CONF_)
+#define CONTEXT_OFFSET 12
+#elif defined(_CHIBIOS_NIL_CONF_)
+#define CONTEXT_OFFSET 0
+#else
+#error "invalid chconf.h"
+#endif
+
+#if PPC_USE_VLE == TRUE
+ .section .text_vle, "ax"
+#else
+ .section .text, "ax"
+#endif
+
+ .align 2
+ .globl _port_switch
+ .type _port_switch, @function
+_port_switch:
+ subi %sp, %sp, 80
+ mflr %r0
+ stw %r0, 84(%sp)
+ mfcr %r0
+ stw %r0, 0(%sp)
+ stmw %r14, 4(%sp)
+
+ stw %sp, 12(%r4)
+ lwz %sp, 12(%r3)
+
+ lmw %r14, 4(%sp)
+ lwz %r0, 0(%sp)
+ mtcr %r0
+ lwz %r0, 84(%sp)
+ mtlr %r0
+ addi %sp, %sp, 80
+ blr
+
+ .align 2
+ .globl _port_thread_start
+ .type _port_thread_start, @function
+_port_thread_start:
+#if CH_DBG_SYSTEM_STATE_CHECK
+ bl _dbg_check_unlock
+#endif
+#if CH_DBG_STATISTICS
+ bl _stats_stop_measure_crit_thd
+#endif
+ wrteei 1
+ mr %r3, %r31
+ mtctr %r30
+ bctrl
+#if defined(_CHIBIOS_RT_CONF_)
+ li %r0, 0
+ bl chThdExit
+#endif
+#if defined(_CHIBIOS_NIL_CONF_)
+ se_li %r0, 0
+ e_bl chSysHalt
+#endif
+
+#endif /* !defined(__DOXYGEN__) */
+
+/** @} */
diff --git a/os/common/ports/e200/compilers/GCC/chtypes.h b/os/common/ports/e200/compilers/GCC/chtypes.h
new file mode 100644
index 000000000..38d4fd59e
--- /dev/null
+++ b/os/common/ports/e200/compilers/GCC/chtypes.h
@@ -0,0 +1,93 @@
+/*
+ ChibiOS - Copyright (C) 2006..2015 Giovanni Di Sirio.
+
+ This file is part of ChibiOS.
+
+ ChibiOS is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ ChibiOS is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/**
+ * @file e200/compilers/GCC/chtypes.h
+ * @brief Power e200 port system types.
+ *
+ * @addtogroup PPC_GCC_CORE
+ * @{
+ */
+
+#ifndef _CHTYPES_H_
+#define _CHTYPES_H_
+
+#include <stddef.h>
+#include <stdint.h>
+#include <stdbool.h>
+
+/**
+ * @name Common constants
+ */
+/**
+ * @brief Generic 'false' boolean constant.
+ */
+#if !defined(FALSE) || defined(__DOXYGEN__)
+#define FALSE 0
+#endif
+
+/**
+ * @brief Generic 'true' boolean constant.
+ */
+#if !defined(TRUE) || defined(__DOXYGEN__)
+#define TRUE 1
+#endif
+/** @} */
+
+/**
+ * @name Kernel types
+ * @{
+ */
+typedef uint32_t rtcnt_t; /**< Realtime counter. */
+typedef uint64_t rttime_t; /**< Realtime accumulator. */
+typedef uint32_t syssts_t; /**< System status word. */
+typedef uint8_t tmode_t; /**< Thread flags. */
+typedef uint8_t tstate_t; /**< Thread state. */
+typedef uint8_t trefs_t; /**< Thread references counter. */
+typedef uint8_t tslices_t; /**< Thread time slices counter.*/
+typedef uint32_t tprio_t; /**< Thread priority. */
+typedef int32_t msg_t; /**< Inter-thread message. */
+typedef int32_t eventid_t; /**< Numeric event identifier. */
+typedef uint32_t eventmask_t; /**< Mask of event identifiers. */
+typedef uint32_t eventflags_t; /**< Mask of event flags. */
+typedef int32_t cnt_t; /**< Generic signed counter. */
+typedef uint32_t ucnt_t; /**< Generic unsigned counter. */
+/** @} */
+
+/**
+ * @brief ROM constant modifier.
+ * @note It is set to use the "const" keyword in this port.
+ */
+#define ROMCONST const
+
+/**
+ * @brief Makes functions not inlineable.
+ * @note If the compiler does not support such attribute then the
+ * realtime counter precision could be degraded.
+ */
+#define NOINLINE __attribute__((noinline))
+
+/**
+ * @brief Optimized thread function declaration macro.
+ */
+#define PORT_THD_FUNCTION(tname, arg) void tname(void *arg)
+
+#endif /* _CHTYPES_H_ */
+
+/** @} */
diff --git a/os/common/ports/e200/compilers/GCC/ivor.s b/os/common/ports/e200/compilers/GCC/ivor.s
new file mode 100644
index 000000000..4b1c95dd6
--- /dev/null
+++ b/os/common/ports/e200/compilers/GCC/ivor.s
@@ -0,0 +1,258 @@
+/*
+ ChibiOS - Copyright (C) 2006..2015 Giovanni Di Sirio.
+
+ This file is part of ChibiOS.
+
+ ChibiOS is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ ChibiOS is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/**
+ * @file ivor.s
+ * @brief Kernel ISRs.
+ *
+ * @addtogroup PPC_CORE
+ * @{
+ */
+
+#if !defined(FALSE) || defined(__DOXYGEN__)
+#define FALSE 0
+#endif
+
+#if !defined(TRUE) || defined(__DOXYGEN__)
+#define TRUE 1
+#endif
+
+/*
+ * Imports the PPC configuration headers.
+ */
+#define _FROM_ASM_
+#include "chconf.h"
+#include "chcore.h"
+
+#if !defined(__DOXYGEN__)
+
+ .section .handlers, "ax"
+
+#if PPC_SUPPORTS_DECREMENTER
+ /*
+ * _IVOR10 handler (Book-E decrementer).
+ */
+ .align 4
+ .globl _IVOR10
+ .type _IVOR10, @function
+_IVOR10:
+ /* Saving the external context (port_extctx structure).*/
+ stwu %sp, -80(%sp)
+#if PPC_USE_VLE && PPC_SUPPORTS_VLE_MULTI
+ e_stmvsrrw 8(%sp) /* Saves PC, MSR. */
+ e_stmvsprw 16(%sp) /* Saves CR, LR, CTR, XER. */
+ e_stmvgprw 32(%sp) /* Saves GPR0, GPR3...GPR12. */
+#else /* !(PPC_USE_VLE && PPC_SUPPORTS_VLE_MULTI) */
+ stw %r0, 32(%sp) /* Saves GPR0. */
+ mfSRR0 %r0
+ stw %r0, 8(%sp) /* Saves PC. */
+ mfSRR1 %r0
+ stw %r0, 12(%sp) /* Saves MSR. */
+ mfCR %r0
+ stw %r0, 16(%sp) /* Saves CR. */
+ mfLR %r0
+ stw %r0, 20(%sp) /* Saves LR. */
+ mfCTR %r0
+ stw %r0, 24(%sp) /* Saves CTR. */
+ mfXER %r0
+ stw %r0, 28(%sp) /* Saves XER. */
+ stw %r3, 36(%sp) /* Saves GPR3...GPR12. */
+ stw %r4, 40(%sp)
+ stw %r5, 44(%sp)
+ stw %r6, 48(%sp)
+ stw %r7, 52(%sp)
+ stw %r8, 56(%sp)
+ stw %r9, 60(%sp)
+ stw %r10, 64(%sp)
+ stw %r11, 68(%sp)
+ stw %r12, 72(%sp)
+#endif /* !(PPC_USE_VLE && PPC_SUPPORTS_VLE_MULTI) */
+
+ /* Increasing the SPGR0 register.*/
+ mfspr %r0, 272
+ eaddi %r0, %r0, 1
+ mtspr 272, %r0
+
+ /* Reset DIE bit in TSR register.*/
+ lis %r3, 0x0800 /* DIS bit mask. */
+ mtspr 336, %r3 /* TSR register. */
+
+ /* Restoring pre-IRQ MSR register value.*/
+ mfSRR1 %r0
+#if !PPC_USE_IRQ_PREEMPTION
+ /* No preemption, keeping EE disabled.*/
+ se_bclri %r0, 16 /* EE = bit 16. */
+#endif
+ mtMSR %r0
+
+#if CH_DBG_SYSTEM_STATE_CHECK
+ bl _dbg_check_enter_isr
+ bl _dbg_check_lock_from_isr
+#endif
+ /* System tick handler invocation.*/
+ bl chSysTimerHandlerI
+#if CH_DBG_SYSTEM_STATE_CHECK
+ bl _dbg_check_unlock_from_isr
+ bl _dbg_check_leave_isr
+#endif
+
+#if PPC_USE_IRQ_PREEMPTION
+ /* Prevents preemption again.*/
+ wrteei 0
+#endif
+
+ /* Jumps to the common IVOR epilogue code.*/
+ b _ivor_exit
+#endif /* PPC_SUPPORTS_DECREMENTER */
+
+ /*
+ * _IVOR4 handler (Book-E external interrupt).
+ */
+ .align 4
+ .globl _IVOR4
+ .type _IVOR4, @function
+_IVOR4:
+ /* Saving the external context (port_extctx structure).*/
+ stwu %sp, -80(%sp)
+#if PPC_USE_VLE && PPC_SUPPORTS_VLE_MULTI
+ e_stmvsrrw 8(%sp) /* Saves PC, MSR. */
+ e_stmvsprw 16(%sp) /* Saves CR, LR, CTR, XER. */
+ e_stmvgprw 32(%sp) /* Saves GPR0, GPR3...GPR12. */
+#else /* !(PPC_USE_VLE && PPC_SUPPORTS_VLE_MULTI) */
+ stw %r0, 32(%sp) /* Saves GPR0. */
+ mfSRR0 %r0
+ stw %r0, 8(%sp) /* Saves PC. */
+ mfSRR1 %r0
+ stw %r0, 12(%sp) /* Saves MSR. */
+ mfCR %r0
+ stw %r0, 16(%sp) /* Saves CR. */
+ mfLR %r0
+ stw %r0, 20(%sp) /* Saves LR. */
+ mfCTR %r0
+ stw %r0, 24(%sp) /* Saves CTR. */
+ mfXER %r0
+ stw %r0, 28(%sp) /* Saves XER. */
+ stw %r3, 36(%sp) /* Saves GPR3...GPR12. */
+ stw %r4, 40(%sp)
+ stw %r5, 44(%sp)
+ stw %r6, 48(%sp)
+ stw %r7, 52(%sp)
+ stw %r8, 56(%sp)
+ stw %r9, 60(%sp)
+ stw %r10, 64(%sp)
+ stw %r11, 68(%sp)
+ stw %r12, 72(%sp)
+#endif /* !(PPC_USE_VLE && PPC_SUPPORTS_VLE_MULTI) */
+
+ /* Increasing the SPGR0 register.*/
+ mfspr %r0, 272
+ eaddi %r0, %r0, 1
+ mtspr 272, %r0
+
+ /* Software vector address from the INTC register.*/
+ lis %r3, INTC_IACKR_ADDR@h
+ ori %r3, %r3, INTC_IACKR_ADDR@l /* IACKR register address. */
+ lwz %r3, 0(%r3) /* IACKR register value. */
+ lwz %r3, 0(%r3)
+ mtCTR %r3 /* Software handler address. */
+
+ /* Restoring pre-IRQ MSR register value.*/
+ mfSRR1 %r0
+#if !PPC_USE_IRQ_PREEMPTION
+ /* No preemption, keeping EE disabled.*/
+ se_bclri %r0, 16 /* EE = bit 16. */
+#endif
+ mtMSR %r0
+
+ /* Exectes the software handler.*/
+ bctrl
+
+#if PPC_USE_IRQ_PREEMPTION
+ /* Prevents preemption again.*/
+ wrteei 0
+#endif
+
+ /* Informs the INTC that the interrupt has been served.*/
+ mbar 0
+ lis %r3, INTC_EOIR_ADDR@h
+ ori %r3, %r3, INTC_EOIR_ADDR@l
+ stw %r3, 0(%r3) /* Writing any value should do. */
+
+ /* Common IVOR epilogue code, context restore.*/
+ .globl _ivor_exit
+_ivor_exit:
+ /* Decreasing the SPGR0 register.*/
+ mfspr %r0, 272
+ eaddi %r0, %r0, -1
+ mtspr 272, %r0
+
+#if CH_DBG_STATISTICS
+ bl _stats_start_measure_crit_thd
+#endif
+#if CH_DBG_SYSTEM_STATE_CHECK
+ bl _dbg_check_lock
+#endif
+ bl chSchIsPreemptionRequired
+ cmpli cr0, %r3, 0
+ beq cr0, .noresch
+ bl chSchDoReschedule
+.noresch:
+#if CH_DBG_SYSTEM_STATE_CHECK
+ bl _dbg_check_unlock
+#endif
+#if CH_DBG_STATISTICS
+ bl _stats_stop_measure_crit_thd
+#endif
+
+ /* Restoring the external context.*/
+#if PPC_USE_VLE && PPC_SUPPORTS_VLE_MULTI
+ e_lmvgprw 32(%sp) /* Restores GPR0, GPR3...GPR12. */
+ e_lmvsprw 16(%sp) /* Restores CR, LR, CTR, XER. */
+ e_lmvsrrw 8(%sp) /* Restores PC, MSR. */
+#else /*!(PPC_USE_VLE && PPC_SUPPORTS_VLE_MULTI) */
+ lwz %r3, 36(%sp) /* Restores GPR3...GPR12. */
+ lwz %r4, 40(%sp)
+ lwz %r5, 44(%sp)
+ lwz %r6, 48(%sp)
+ lwz %r7, 52(%sp)
+ lwz %r8, 56(%sp)
+ lwz %r9, 60(%sp)
+ lwz %r10, 64(%sp)
+ lwz %r11, 68(%sp)
+ lwz %r12, 72(%sp)
+ lwz %r0, 8(%sp)
+ mtSRR0 %r0 /* Restores PC. */
+ lwz %r0, 12(%sp)
+ mtSRR1 %r0 /* Restores MSR. */
+ lwz %r0, 16(%sp)
+ mtCR %r0 /* Restores CR. */
+ lwz %r0, 20(%sp)
+ mtLR %r0 /* Restores LR. */
+ lwz %r0, 24(%sp)
+ mtCTR %r0 /* Restores CTR. */
+ lwz %r0, 28(%sp)
+ mtXER %r0 /* Restores XER. */
+ lwz %r0, 32(%sp) /* Restores GPR0. */
+#endif /* !(PPC_USE_VLE && PPC_SUPPORTS_VLE_MULTI) */
+ addi %sp, %sp, 80 /* Back to the previous frame. */
+ rfi
+
+#endif /* !defined(__DOXYGEN__) */
+
+/** @} */
diff --git a/os/common/ports/e200/compilers/GCC/mk/port.mk b/os/common/ports/e200/compilers/GCC/mk/port.mk
new file mode 100644
index 000000000..d22a30c97
--- /dev/null
+++ b/os/common/ports/e200/compilers/GCC/mk/port.mk
@@ -0,0 +1,8 @@
+# List of the ChibiOS/RT e200 generic port files.
+PORTSRC = $(CHIBIOS)/os/common/ports/e200/chcore.c
+
+PORTASM = $(CHIBIOS)/os/common/ports/e200/compilers/GCC/ivor.s \
+ $(CHIBIOS)/os/common/ports/e200/compilers/GCC/chcoreasm.s
+
+PORTINC = $(CHIBIOS)/os/common/ports/e200 \
+ $(CHIBIOS)/os/common/ports/e200/compilers/GCC
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-27 18:28:50 +0000