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authorChris Johns <chrisj@rtems.org>2017-12-23 18:18:56 +1100
committerSebastian Huber <sebastian.huber@embedded-brains.de>2018-01-25 08:45:26 +0100
commit2afb22b7e1ebcbe40373ff7e0efae7d207c655a9 (patch)
tree44759efe9374f13200a97e96d91bd9a2b7e5ce2a /bsps/powerpc/psim/include/psim.h
parentMAINTAINERS: Add myself to Write After Approval. (diff)
downloadrtems-2afb22b7e1ebcbe40373ff7e0efae7d207c655a9.tar.bz2
Remove make preinstall
A speciality of the RTEMS build system was the make preinstall step. It copied header files from arbitrary locations into the build tree. The header files were included via the -Bsome/build/tree/path GCC command line option. This has at least seven problems: * The make preinstall step itself needs time and disk space. * Errors in header files show up in the build tree copy. This makes it hard for editors to open the right file to fix the error. * There is no clear relationship between source and build tree header files. This makes an audit of the build process difficult. * The visibility of all header files in the build tree makes it difficult to enforce API barriers. For example it is discouraged to use BSP-specifics in the cpukit. * An introduction of a new build system is difficult. * Include paths specified by the -B option are system headers. This may suppress warnings. * The parallel build had sporadic failures on some hosts. This patch removes the make preinstall step. All installed header files are moved to dedicated include directories in the source tree. Let @RTEMS_CPU@ be the target architecture, e.g. arm, powerpc, sparc, etc. Let @RTEMS_BSP_FAMILIY@ be a BSP family base directory, e.g. erc32, imx, qoriq, etc. The new cpukit include directories are: * cpukit/include * cpukit/score/cpu/@RTEMS_CPU@/include * cpukit/libnetworking The new BSP include directories are: * bsps/include * bsps/@RTEMS_CPU@/include * bsps/@RTEMS_CPU@/@RTEMS_BSP_FAMILIY@/include There are build tree include directories for generated files. The include directory order favours the most general header file, e.g. it is not possible to override general header files via the include path order. The "bootstrap -p" option was removed. The new "bootstrap -H" option should be used to regenerate the "headers.am" files. Update #3254.
Diffstat (limited to 'bsps/powerpc/psim/include/psim.h')
-rw-r--r--bsps/powerpc/psim/include/psim.h90
1 files changed, 90 insertions, 0 deletions
diff --git a/bsps/powerpc/psim/include/psim.h b/bsps/powerpc/psim/include/psim.h
new file mode 100644
index 0000000000..e7b6fa7578
--- /dev/null
+++ b/bsps/powerpc/psim/include/psim.h
@@ -0,0 +1,90 @@
+/*
+ * PSIM addresses and constants based upon the configuration
+ * of devices used in the script provided by RTEMS.
+ */
+
+#ifndef __PSIM_h
+#define __PSIM_h
+
+/*
+ * RAM Information
+ */
+
+extern char RamBase[];
+extern char RamSize[];
+
+/*
+ * RamBase/RamSize is defined by the linker script;
+ * CPP symbols are AFAIK unused and deprecated.
+ */
+#define PSIM_RAM_SIZE ((unsigned long)RamSize)
+#define PSIM_RAM_BASE ((void*)RamBase)
+
+/*
+ * NVRAM/RTC Structure and Information
+ */
+
+#define PSIM_RTC_FREEZE 0xc0
+#define PSIM_RTC_UPDATE 0x00
+
+typedef struct {
+ volatile uint8_t Control; /* 0x04 */
+ volatile uint8_t Second; /* 0x05 */
+ volatile uint8_t Minute; /* 0x06 */
+ volatile uint8_t Hour; /* 0x07 */
+ volatile uint8_t Day; /* 0x08 */
+ volatile uint8_t Date; /* 0x09 */
+ volatile uint8_t Month; /* 0x0a */
+ volatile uint8_t Year; /* 0x0b */
+} psim_rtc_t;
+
+/*
+ * System V IPC Semaphore -- Read Only
+ */
+
+typedef struct {
+ volatile uint32_t obtain_value; /* 0x00 */
+ volatile uint32_t lock; /* 0x04 */
+ volatile uint32_t unlock; /* 0x08 */
+} psim_sysv_sem_t;
+
+typedef struct {
+ /* 0x0c000000 - 0x0c007FFF - AMD 29F040 */
+ volatile uint8_t Flash[ 512 * 1024 ];
+
+ /* 0x0c080000 - 0x0c0FFFFF - NVRAM/NVRAM */
+ volatile uint8_t nvram[ 512 * 1024 ];
+
+ /* 0x0c100000 - 0x0c100007 - NVRAM/RTC */
+ psim_rtc_t RTC;
+
+ /* 0x0c100008 - 0x0c10000F - NVRAM/RTC */
+ uint8_t gap1[8];
+
+ /* 0x0c100010 - 0x0c10001b - System V IPC Semaphore */
+ psim_sysv_sem_t Semaphore;
+
+ /* 0x0c10001c - 0x0c10001f - NVRAM/RTC */
+ uint8_t gap2[4];
+
+ /* 0x0c100020 - 0x0c10005F - Ethernet */
+ volatile uint8_t Ethtap[ 64 ];
+
+ /* 0x0c100060 - 0x0c10FFFF - NVRAM/RTC */
+ uint8_t gap3[65440];
+
+ /* 0x0c110000 - 0x0c12FFFF - System V IPC Shared Memory */
+ uint8_t SharedMemory[ 128 * 1024 ];
+
+ /* 0x0c130000 - 0x0c170000 - OpenPIC IRQ Controller */
+ volatile uint8_t OpenPIC[ 256 * 1024 ];
+
+} psim_registers_t;
+
+/*
+ * Data Structure Overlay for Registers. See linkcmds for placement.
+ */
+extern psim_registers_t PSIM;
+
+#endif
+/* end of include file */