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bsp/mpc55xxevb: Change early MMU settings

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Add internal SRAM sections with cache enabled to early MMU settings.
The internal SRAM initialization will use the early MMU settings.  This
allows applications to use cache inhibited areas in the internal SRAM.
This commit is contained in:
Sebastian Huber
2012-04-24 11:21:46 +02:00
parent 3595533de5
commit 13a8b19eed
3 changed files with 28 additions and 17 deletions
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19
c/src/lib/libbsp/powerpc/mpc55xxevb/startup/start-config-mmu-early.c
View File

@@ -7,7 +7,7 @@
*/
/*
* Copyright (c) 2011 embedded brains GmbH. All rights reserved.
* Copyright (c) 2011-2012 embedded brains GmbH. All rights reserved.
*
* embedded brains GmbH
* Obere Lagerstr. 30
@@ -25,14 +25,25 @@
BSP_START_TEXT_SECTION const struct MMU_tag
mpc55xx_start_config_mmu_early [] = {
#if MPC55XX_CHIP_TYPE / 10 == 564
#if MPC55XX_CHIP_TYPE / 10 == 555
/* Internal SRAM 96k */
MPC55XX_MMU_TAG_INITIALIZER(3, 0x40000000, MPC55XX_MMU_256K, 1, 1, 1, 0),
#elif MPC55XX_CHIP_TYPE / 10 == 556
/* Internal SRAM 128k */
MPC55XX_MMU_TAG_INITIALIZER(3, 0x40000000, MPC55XX_MMU_64K, 1, 1, 1, 0),
MPC55XX_MMU_TAG_INITIALIZER(5, 0x40010000, MPC55XX_MMU_64K, 0, 1, 1, 0),
#elif MPC55XX_CHIP_TYPE / 10 == 564
/* Internal flash 1M */
MPC55XX_MMU_TAG_INITIALIZER(0, 0x00000000, MPC55XX_MMU_1M, 1, 0, 1, 1),
/* IO */
MPC55XX_MMU_TAG_INITIALIZER(1, 0xffe00000, MPC55XX_MMU_2M, 0, 1, 1, 1),
MPC55XX_MMU_TAG_INITIALIZER(2, 0xc3f00000, MPC55XX_MMU_1M, 0, 1, 1, 1),
/* Internal SRAM 64k */
MPC55XX_MMU_TAG_INITIALIZER(3, 0x40000000, MPC55XX_MMU_64K, 1, 1, 1, 1)
/* Internal SRAM 64k + 64k */
MPC55XX_MMU_TAG_INITIALIZER(3, 0x40000000, MPC55XX_MMU_64K, 1, 1, 1, 0),
MPC55XX_MMU_TAG_INITIALIZER(4, 0x50000000, MPC55XX_MMU_64K, 0, 1, 1, 0)
#elif MPC55XX_CHIP_TYPE / 10 == 567
/* Internal SRAM 256k */
MPC55XX_MMU_TAG_INITIALIZER(3, 0x40000000, MPC55XX_MMU_256K, 1, 1, 1, 0)
#endif
};

24
c/src/lib/libbsp/powerpc/mpc55xxevb/startup/start-config-mmu.c
View File

@@ -7,7 +7,7 @@
*/
/*
* Copyright (c) 2008-2011 embedded brains GmbH. All rights reserved.
* Copyright (c) 2008-2012 embedded brains GmbH. All rights reserved.
*
* embedded brains GmbH
* Obere Lagerstr. 30
@@ -86,20 +86,20 @@ BSP_START_TEXT_SECTION const struct MMU_tag
#elif defined(MPC55XX_BOARD_MPC5566EVB)
/* Internal flash 3M */
MPC55XX_MMU_TAG_INITIALIZER(1, 0x00000000, MPC55XX_MMU_64K, 1, 0, 1, 0),
MPC55XX_MMU_TAG_INITIALIZER(5, 0x00010000, MPC55XX_MMU_64K, 1, 0, 1, 0),
MPC55XX_MMU_TAG_INITIALIZER(6, 0x00020000, MPC55XX_MMU_64K, 1, 0, 1, 0),
MPC55XX_MMU_TAG_INITIALIZER(7, 0x00030000, MPC55XX_MMU_64K, 1, 0, 1, 0),
MPC55XX_MMU_TAG_INITIALIZER(8, 0x00040000, MPC55XX_MMU_256K, 1, 0, 1, 0),
MPC55XX_MMU_TAG_INITIALIZER(9, 0x00080000, MPC55XX_MMU_256K, 1, 0, 1, 0),
MPC55XX_MMU_TAG_INITIALIZER(10, 0x000c0000, MPC55XX_MMU_256K, 1, 0, 1, 0),
MPC55XX_MMU_TAG_INITIALIZER(11, 0x00100000, MPC55XX_MMU_1M, 1, 0, 1, 0),
MPC55XX_MMU_TAG_INITIALIZER(12, 0x00200000, MPC55XX_MMU_1M, 1, 0, 1, 0),
MPC55XX_MMU_TAG_INITIALIZER(6, 0x00010000, MPC55XX_MMU_64K, 1, 0, 1, 0),
MPC55XX_MMU_TAG_INITIALIZER(7, 0x00020000, MPC55XX_MMU_64K, 1, 0, 1, 0),
MPC55XX_MMU_TAG_INITIALIZER(8, 0x00030000, MPC55XX_MMU_64K, 1, 0, 1, 0),
MPC55XX_MMU_TAG_INITIALIZER(9, 0x00040000, MPC55XX_MMU_256K, 1, 0, 1, 0),
MPC55XX_MMU_TAG_INITIALIZER(10, 0x00080000, MPC55XX_MMU_256K, 1, 0, 1, 0),
MPC55XX_MMU_TAG_INITIALIZER(11, 0x000c0000, MPC55XX_MMU_256K, 1, 0, 1, 0),
MPC55XX_MMU_TAG_INITIALIZER(12, 0x00100000, MPC55XX_MMU_1M, 1, 0, 1, 0),
MPC55XX_MMU_TAG_INITIALIZER(13, 0x00200000, MPC55XX_MMU_1M, 1, 0, 1, 0),
/* External SRAM 512k */
MPC55XX_MMU_TAG_INITIALIZER(2, 0x20000000, MPC55XX_MMU_256K, 0, 1, 1, 0),
MPC55XX_MMU_TAG_INITIALIZER(13, 0x20040000, MPC55XX_MMU_256K, 0, 1, 1, 0),
MPC55XX_MMU_TAG_INITIALIZER(14, 0x20040000, MPC55XX_MMU_256K, 0, 1, 1, 0),
/* Internal SRAM 128k */
MPC55XX_MMU_TAG_INITIALIZER(3, 0x40010000, MPC55XX_MMU_64K, 0, 1, 1, 0),
MPC55XX_MMU_TAG_INITIALIZER(14, 0x40000000, MPC55XX_MMU_64K, 0, 1, 1, 0),
MPC55XX_MMU_TAG_INITIALIZER(3, 0x40000000, MPC55XX_MMU_64K, 0, 1, 1, 0),
MPC55XX_MMU_TAG_INITIALIZER(5, 0x40010000, MPC55XX_MMU_64K, 0, 1, 1, 0),
/* External Ethernet Controller 64k */
MPC55XX_MMU_TAG_INITIALIZER(15, 0x3fff8000, MPC55XX_MMU_64K, 0, 1, 1, 1)
#elif defined(MPC55XX_BOARD_MPC5674FEVB)

2
c/src/lib/libbsp/powerpc/mpc55xxevb/startup/start-early.c
View File

@@ -166,8 +166,8 @@ BSP_START_TEXT_SECTION void mpc55xx_start_early(void)
#if defined(BSP_DATA_CACHE_ENABLED) || defined(BSP_INSTRUCTION_CACHE_ENABLED)
mpc55xx_start_cache();
#endif
mpc55xx_start_mmu();
mpc55xx_start_internal_ram();
mpc55xx_start_mmu();
mpc55xx_start_mode_change();
mpc55xx_start_siu();
mpc55xx_start_ebi_chip_select();