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SAMA5D4-EK: Updates to get the at25boot configuration building correctly

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This commit is contained in:
Gregory Nutt 2014-06-28 09:39:50 -06:00
parent 1bfa27887e
commit b7fad79a1d
2 changed files with 39 additions and 3 deletions
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21
arch/arm/src/sama5/chip/sama5d3x_memorymap.h
View File

@ -616,8 +616,19 @@
# endif
# define PGTABLE_IN_HIGHSRAM 1
/* If we execute from SRAM but keep data in SDRAM, then we will also have
* to position the initial, IDLE stack in SRAM. SDRAM will not be ready
* soon enough to serve as the stack.
*
* In this case, the initial IDLE stack can just follow the vector table,
* lying between the vector table and the page table. We don't really
* know how much memory to set aside for the vector table, but 4KiB should
* be much more than enough
*/
# ifdef CONFIG_BOOT_SDRAM_DATA
# error CONFIG_BOOT_SDRAM_DATA not suupported in this configuration
# define IDLE_STACK_PBASE (SAM_ISRAM0_PADDR + 0x0001000)
# define IDLE_STACK_VBASE (SAM_ISRAM0_VADDR + 0x0001000)
# endif
# else /* CONFIG_SAMA5_BOOT_ISRAM && CONFIG_ARCH_LOWVECTORS */
@ -657,7 +668,13 @@
# error "One of PGTABLE_BASE_PADDR or PGTABLE_BASE_VADDR is undefined"
# endif
/* If data is in SDRAM, then the IDLE stack at the beginning of ISRAM */
/* If we execute from SRAM but keep data in SDRAM, then we will also have
* to position the initial, IDLE stack in SRAM. SDRAM will not be ready
* soon enough to serve as the stack.
*
* In this case, the initial IDLE stack can just follow the page table
* in ISRAM.
*/
# ifdef CONFIG_BOOT_SDRAM_DATA
# define IDLE_STACK_PBASE (SAM_ISRAM0_PADDR + PGTABLE_SIZE)

21
arch/arm/src/sama5/chip/sama5d4x_memorymap.h
View File

@ -608,8 +608,19 @@
# endif
# define PGTABLE_IN_HIGHSRAM 1
/* If we execute from SRAM, but keep data in SDRAM, then we will also have
* to position the initial, IDLE stack in SRAM. SDRAM will not be ready
* soon enough to serve as the stack.
*
* In this case, the initial IDLE stack can just follow the vector table,
* lying between the vector table and the page table. We don't really
* know how much memory to set aside for the vector table, but 4KiB should
* be much more than enough
*/
# ifdef CONFIG_BOOT_SDRAM_DATA
# error CONFIG_BOOT_SDRAM_DATA not suupported in this configuration
# define IDLE_STACK_PBASE (SAM_ISRAM0_PADDR + 0x0001000)
# define IDLE_STACK_VBASE (SAM_ISRAM0_VADDR + 0x0001000)
# endif
# else /* CONFIG_SAMA5_BOOT_ISRAM && CONFIG_ARCH_LOWVECTORS */
@ -625,6 +636,14 @@
# endif
# define PGTABLE_IN_LOWSRAM 1
/* If we execute from SRAM, but keep data in SDRAM, then we will also have
* to position the initial, IDLE stack in SRAM. SDRAM will not be ready
* soon enough to serve as the stack.
*
* In this case, the initial IDLE stack can just follow the page table
* in ISRAM.
*/
# ifdef CONFIG_BOOT_SDRAM_DATA
# define IDLE_STACK_PBASE (PGTABLE_BASE_PADDR + PGTABLE_SIZE)
# define IDLE_STACK_VBASE (PGTABLE_BASE_VADDR + PGTABLE_SIZE)