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banshee: Add zeromemory and bootrom (pulp-platform/snitch#344)
* banshee: add zeromemory peripheral * banshee: allow to set num-cores, num-clusters and base-core-id-offset with configuration file * banshee: cleanup zeromemory peripheral * banshee: add bootrom * banshee: initialize a0 with hartid value * banshee: fix configurability - take config file values unless not set * banshee: set default architecture configuration to 0 * banshee: fix bootrom configuration and formatting * snRuntime tests: reorganize startup files for rtl, banshee general, banshee snitch and make necessary cmake adaptations * ci: run banshee test for general configuration and for snitch configuration * banshee: make bootrom atomic * ci: fix linting * ci: fix ci runs for banshee * ci: fix ci flow for banshee snitch tests * ci: fix typo * fix yml linting * snRuntime: remove snRuntime-banshee-general and all empty startup files * snRuntime-tests: update team_global test to snitch_cluster configuration * ci: update ci banshee tests * snRuntime: merge _snrt_cluster_barrier from rtl and banshee startup * snRuntime-banshee: update banshee startup * banshee: overwrite configuration file with handed over paramters * ci: fix linting * banshee/snRuntime: change scratch_reg address * banshee: fix bootrom * banshee: fix formatting * ci: fix linting * banshee: fix format * update ci to new master after rebase * ci: change application tests to use snitch_cluster configuration
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| Original file line number | Diff line number | Diff line change |
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| // Copyright 2020 ETH Zurich and University of Bologna. | ||
| // Licensed under the Apache License, Version 2.0, see LICENSE for details. | ||
| // SPDX-License-Identifier: Apache-2.0 | ||
| #include "snrt.h" | ||
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| extern const uint32_t wakeup_reg; | ||
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| // Provide an implementation for putchar. | ||
| void snrt_putchar(char character) { | ||
| *(volatile uint32_t *)0xF00B8000 = character; | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,34 @@ | ||
| # Copyright 2020 ETH Zurich and University of Bologna. | ||
| # Licensed under the Apache License, Version 2.0, see LICENSE for details. | ||
| # SPDX-License-Identifier: Apache-2.0 | ||
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| #include "../shared/start_snitch.S" | ||
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| # Function to terminate execution. | ||
| # | ||
| # Expecting: | ||
| # - a0: exit code | ||
| # - a1: device tree ptr | ||
| _snrt_exit: | ||
| .globl _snrt_exit | ||
| # Determine global core index. | ||
| addi sp, sp, -8 | ||
| sw a0, 0(sp) | ||
| sw ra, 4(sp) | ||
| call snrt_global_core_idx | ||
| # reload exit code into t0 | ||
| lw t0, 0(sp) | ||
| lw ra, 4(sp) | ||
| addi sp, sp, 8 | ||
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| # Only first core triggers exit. | ||
| # - a0: global core index | ||
| # - t0: exit code | ||
| bnez a0, 1f | ||
| slli t0, t0, 1 | ||
| ori t0, t0, 1 | ||
| la t1, scratch_reg | ||
| sw t0, 0(t1) | ||
| 1: ret | ||
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| .set scratch_reg, 0x02000014 # used as exit code location |
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