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litex: Allow custom peripheral memory mapping and IRQ.

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This commit is contained in:
Stuart Ianna 2023-01-25 11:44:20 +11:00 committed by Xiang Xiao
parent 92d23e7d6d
commit 34fdc3da0d
3 changed files with 52 additions and 0 deletions
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5
arch/risc-v/include/litex/irq.h
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@ -25,6 +25,10 @@
* Included Files
****************************************************************************/
#ifdef CONFIG_LITEX_USE_CUSTOM_IRQ_DEFINITIONS
#include CONFIG_LITEX_CUSTOM_IRQ_DEFINITIONS_PATH
#else
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
@ -40,4 +44,5 @@
#define NR_IRQS (LITEX_IRQ_SDCARD + 1)
#endif /* CONFIG_LITEX_USE_CUSTOM_IRQ_DEFINITIONS */
#endif /* __ARCH_RISCV_INCLUDE_LITEX_IRQ_H */

38
arch/risc-v/src/litex/Kconfig
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@ -16,6 +16,44 @@ menu "LITEX Peripheral Support"
# These "hidden" settings determine whether a peripheral option is available
# for the selected MCU
config LITEX_USE_CUSTOM_MEMORY_MAP
bool "Custom peripheral memory mapping"
default n
---help---
Use a custom memory map for the peripheral base addresses defined in
arch/risc-v/src/litex/hardware/litex_memorymap.h.
if LITEX_USE_CUSTOM_MEMORY_MAP
config LITEX_CUSTOM_MEMORY_MAP_PATH
string "Path to custom memory map include file."
default ""
---help---
Specify the path to the file containing the peripheral memory mapping.
The path specified must be relative to arch/risc-v/src/litex/hardware/litex_memorymap.h.
The file must redefine any symbols which are intended to be overridden.
endif
config LITEX_USE_CUSTOM_IRQ_DEFINITIONS
bool "Custom IRQ mapping"
default n
---help---
Use custom definitions for risc-v IRQ numbers and sequence.
Allowing for the definitions in arch/risc-v/include/litex/irq.h to be overridden.
if LITEX_USE_CUSTOM_IRQ_DEFINITIONS
config LITEX_CUSTOM_IRQ_DEFINITIONS_PATH
string "Path to custom IRQ mapping include file."
default ""
---help---
Specify the path to the file containing the custom IRQ definitions.
The path specified must be relative to arch/risc-v/include/litex/irq.
The file must redefine any symbols which are intended to be overridden.
endif
config LITEX_HAVE_UART0
bool
default y

9
arch/risc-v/src/litex/hardware/litex_memorymap.h
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@ -21,6 +21,14 @@
#ifndef __ARCH_RISCV_SRC_LITEX_HARDWARE_LITEX_MEMORYMAP_H
#define __ARCH_RISCV_SRC_LITEX_HARDWARE_LITEX_MEMORYMAP_H
/****************************************************************************
* Included Files
****************************************************************************/
#ifdef CONFIG_LITEX_USE_CUSTOM_MEMORY_MAP
#include CONFIG_LITEX_CUSTOM_MEMORY_MAP_PATH
#else
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
@ -45,4 +53,5 @@
#define LITEX_ETHMAC_RXBASE 0x80000000
#define LITEX_ETHMAC_TXBASE 0x80001000
#endif /* CONFIG_LITEX_USE_CUSTOM_MEMORY_MAP */
#endif /* __ARCH_RISCV_SRC_LITEX_HARDWARE_LITEX_MEMORYMAP_H */