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bsp/mpc55xx: Add BSP_DATA_CACHE_USE_WRITE_THROUGH

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This commit is contained in:
Sebastian Huber
2013-01-11 14:41:53 +01:00
parent 036788d57b
commit c934a10dba
3 changed files with 13 additions and 2 deletions
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5
c/src/lib/libbsp/powerpc/mpc55xxevb/configure.ac
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@@ -32,6 +32,11 @@ RTEMS_BSPOPTS_SET_INSTRUCTION_CACHE_ENABLED([gwlcfm],[])
RTEMS_BSPOPTS_SET_INSTRUCTION_CACHE_ENABLED([*],[1])
RTEMS_BSPOPTS_HELP_INSTRUCTION_CACHE_ENABLED
RTEMS_BSPOPTS_SET([BSP_DATA_CACHE_USE_WRITE_THROUGH],[mpc5674f_ecu508*],[1])
RTEMS_BSPOPTS_SET([BSP_DATA_CACHE_USE_WRITE_THROUGH],[*],[])
RTEMS_BSPOPTS_HELP([BSP_DATA_CACHE_USE_WRITE_THROUGH],
[use write-through for data cache])
RTEMS_BSPOPTS_SET([PPC_EXC_CONFIG_USE_FIXED_HANDLER],[*],[1])
RTEMS_BSPOPTS_HELP([PPC_EXC_CONFIG_USE_FIXED_HANDLER],
[use fixed high-level exception handler])

6
c/src/lib/libbsp/powerpc/mpc55xxevb/startup/start-config-mmu.c
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@@ -85,7 +85,11 @@ const struct MMU_tag mpc55xx_start_config_mmu [] = {
MPC55XX_MMU_TAG_INITIALIZER(9, 0x00100000, MPC55XX_MMU_1M, 1, 0, 1, 0),
MPC55XX_MMU_TAG_INITIALIZER(10, 0x00200000, MPC55XX_MMU_2M, 1, 0, 1, 0),
/* External SRAM 2M */
MPC55XX_MMU_TAG_INITIALIZER(2, 0x20000000, MPC55XX_MMU_2M, 0, 1, 1, 0),
#ifndef BSP_DATA_CACHE_USE_WRITE_THROUGH
MPC55XX_MMU_TAG_INITIALIZER(2, 0x20000000, MPC55XX_MMU_2M, 0, 1, 1, 0),
#else
MPC55XX_MMU_TAG_INITIALIZER(2, 0x20000000, MPC55XX_MMU_2M, 0, 1, 1, 2),
#endif
/* Internal SRAM 256k */
MPC55XX_MMU_TAG_INITIALIZER(3, 0x40000000, MPC55XX_MMU_256K, 0, 1, 1, 0),
MPC55XX_MMU_TAG_INITIALIZER(11, 0x40020000, MPC55XX_MMU_64K, 0, 1, 1, 0),

4
c/src/lib/libbsp/powerpc/shared/src/memcpy.c
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@@ -15,7 +15,9 @@
#include <bspopts.h>
#include <rtems/powerpc/powerpc.h>
#if BSP_DATA_CACHE_ENABLED && PPC_CACHE_ALIGNMENT == 32
#if BSP_DATA_CACHE_ENABLED \
&& PPC_CACHE_ALIGNMENT == 32 \
&& !defined(BSP_DATA_CACHE_USE_WRITE_THROUGH)
#include <string.h>
#include <stdint.h>