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authorJoel Sherrill <joel.sherrill@OARcorp.com>2002-05-14 17:10:17 +0000
committerJoel Sherrill <joel.sherrill@OARcorp.com>2002-05-14 17:10:17 +0000
commit69ed59f083a083fd96d08b5f6d54f2c80f267f03 (patch)
tree3d8fcd08bcface88cea636117b47dd1520b2874c /c/src/lib/libbsp/powerpc/shared/include
parent2001-05-14 Till Straumann <strauman@slac.stanford.edu> (diff)
downloadrtems-69ed59f083a083fd96d08b5f6d54f2c80f267f03.tar.bz2
2001-05-14 Till Straumann <strauman@slac.stanford.edu>
* bootloader/misc.c, console/Makefile.am, console/console.c, console/consoleIo.h, console/inch.c, console/polled_io.c, console/uart.c, console/uart.h, include/bsp.h, irq/Makefile.am, irq/irq.c, irq/irq.h, irq/irq_init.c, openpic/openpic.c, openpic/openpic.h, pci/Makefile.am, pci/pci.c, pci/pci.h, residual/Makefile.am, start/start.S, startup/bspstart.c, vectors/vectors.S, vectors/vectors.h, vectors/vectors_init.c: Per PR216, "libbsp/powerpc/shared" BSP has been modified considerably with the goal to make it more flexible and reusable by other BSPs. The main strategies were: - eliminate hardcoded base addresses; devices use offsets and a BSP defined base address. - separate functionality into different files (e.g. reboot from inch.c to reboot.c) which can be overridden by a 'derived' BSP. - separate initialization code into separate files (e.g. PCI bridge detection/initialization was separated from the more generic PCI access routines), also to make it easier for 'derived' BSPs to substitute their own initialization code. There are also a couple of enhancements and fixes: - IRQ handling code now has a hook for attaching a VME bridge. - OpenPIC is now explicitely initialized (polarities, senses). Eliminated the implicit assumption on the presence of an ISA PIC. - UART and console driver now supports more than 1 port. The current maximum of 2 can easily be extended by enlarging a table (it would even be easier if the ISR API was not broken by design). - fixed polled_io.c so it correctly supports console on COM2 - fixed TLB invalidation code (start.S). - exception handler prints a stack backtrace. - added BSP_pciFindDevice() to scan the pci bus for a particular vendor/device/instance.
Diffstat (limited to 'c/src/lib/libbsp/powerpc/shared/include')
-rw-r--r--c/src/lib/libbsp/powerpc/shared/include/bsp.h26
1 files changed, 25 insertions, 1 deletions
diff --git a/c/src/lib/libbsp/powerpc/shared/include/bsp.h b/c/src/lib/libbsp/powerpc/shared/include/bsp.h
index 1f969ce9ef..b2062c3914 100644
--- a/c/src/lib/libbsp/powerpc/shared/include/bsp.h
+++ b/c/src/lib/libbsp/powerpc/shared/include/bsp.h
@@ -26,9 +26,33 @@
* - Interrupt stack space is not minimum if defined.
*/
-/* #define CONFIGURE_NUMBER_OF_TERMIOS_PORTS 2 */
+#define CONFIGURE_NUMBER_OF_TERMIOS_PORTS 2
#define CONFIGURE_INTERRUPT_STACK_MEMORY (16 * 1024)
+
+/* fundamental addresses for this BSP (PREPxxx are from libcpu/io.h) */
+#define _IO_BASE PREP_ISA_IO_BASE
+#define _ISA_MEM_BASE PREP_ISA_MEM_BASE
+/* address of our ram on the PCI bus */
+#define PCI_DRAM_OFFSET PREP_PCI_DRAM_OFFSET
+/* offset of pci memory as seen from the CPU */
+#define PCI_MEM_BASE PREP_ISA_MEM_BASE
+
+/*
+ * base address definitions for several devices
+ *
+ */
+#define BSP_UART_IOBASE_COM1 ((_IO_BASE)+0x3f8)
+#define BSP_UART_IOBASE_COM2 ((_IO_BASE)+0x2f8)
+#define BSP_KBD_IOBASE ((_IO_BASE)+0x60)
+#define BSP_VGA_IOBASE ((_IO_BASE)+0x3c0)
+
+#define BSP_CONSOLE_PORT BSP_UART_COM1
+#define BSP_UART_BAUD_BASE 115200
+#include <bsp/openpic.h>
+#define BSP_PIC_DO_EOI openpic_eoi(0)
+
+
#ifndef ASM
#define outport_byte(port,value) outb(value,port)
#define outport_word(port,value) outw(value,port)