diff options
Diffstat (limited to 'c/src/lib/libbsp/sparc/erc32/startup/boardinit.S')
-rw-r--r-- | c/src/lib/libbsp/sparc/erc32/startup/boardinit.S | 92 |
1 files changed, 0 insertions, 92 deletions
diff --git a/c/src/lib/libbsp/sparc/erc32/startup/boardinit.S b/c/src/lib/libbsp/sparc/erc32/startup/boardinit.S deleted file mode 100644 index 9ced1c3639..0000000000 --- a/c/src/lib/libbsp/sparc/erc32/startup/boardinit.S +++ /dev/null @@ -1,92 +0,0 @@ -/** - * @file - * - * @ingroup sparc_erc32 - * - * @brief Initialise various ERC32 registers - */ - -/* - * COPYRIGHT (c) 2000. - * European Space Agency. - * - * The license and distribution terms for this file may be - * found in the file LICENSE in this distribution or at - * http://www.rtems.org/license/LICENSE. - */ - -#include <rtems/asm.h> -#include <erc32.h> - - .global __bsp_board_init -__bsp_board_init: - -/* Check if MEC is initialised. If not, this means that we are - running on the simulator. Initiate some of the parameters - that are done by the boot-prom otherwise. -*/ - - set SYM(ERC32_MEC), %g3 ! g3 = base address of peripherals - ld [%g3], %g2 - set 0xfe080000, %g1 - andcc %g1, %g2, %g0 - bne 2f - - /* Stop the watchdog */ - - st %g0, [%g3 + SYM(ERC32_MEC_WATCHDOG_TRAP_DOOR_SET_OFFSET)] - - /* Set zero waitstates */ - - st %g0, [%g3 + SYM(ERC32_MEC_WAIT_STATE_CONFIGURATION_OFFSET)] - - /* Set the correct memory size in MEC memory config register */ - - set SYM(PROM_SIZE), %l0 - set 0, %l1 - srl %l0, 18, %l0 -1: - tst %l0 - srl %l0, 1, %l0 - bne,a 1b - inc %l1 - sll %l1, 8, %l1 - - set SYM(RAM_SIZE), %l0 - srl %l0, 19, %l0 -1: - tst %l0 - srl %l0, 1, %l0 - bne,a 1b - inc %l1 - sll %l1, 10, %l1 - - ! set the Memory Configuration - st %l1, [ %g3 + ERC32_MEC_MEMORY_CONFIGURATION_OFFSET ] - - set SYM(RAM_START), %l1 ! Cannot use RAM_END due to bug in linker - set SYM(RAM_SIZE), %l2 - add %l1, %l2, %sp - - set SYM(CLOCK_SPEED), %g6 ! Use 14 MHz in simulator - set 14, %g1 - st %g1, [%g6] - -2: - - /* Initialise timer */ - - set SYM(_ERC32_MEC_Timer_Control_Mirror), %l2 - st %g0, [%l2] - st %g0, [%g3 + SYM(ERC32_MEC_TIMER_CONTROL_OFFSET)] - - /* Enable power-down */ - - ld [%g3 + SYM(ERC32_MEC_CONTROL_OFFSET)], %l2 - or %l2, ERC32_CONFIGURATION_POWER_DOWN_ALLOWED, %l2 - st %l2, [%g3 + SYM(ERC32_MEC_CONTROL_OFFSET)] - - retl - nop - -/* end of file */ |