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author | Jonny Svärd <jonny.svaerd@arm.com> | 2020-11-16 16:18:07 +0100 |
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committer | Jonny Svärd <jonny.svaerd@arm.com> | 2020-11-26 11:36:05 +0100 |
commit | 9fc527b8b01847b16a8aa577dec4c6d9401a2ef0 (patch) | |
tree | f5f9cbd08ec674f9a3fcbc707044ba3f38bed379 /drivers/mhu_juno/include | |
parent | 34e249686923a0299a041fb6af10e56fc9fb76cd (diff) | |
download | ethos-u-core-software-9fc527b8b01847b16a8aa577dec4c6d9401a2ef0.tar.gz |
Add basic MHU drivers
Add MHUv2 doorbell driver implementation
Add MHU doorbell driver for Juno board
Add a dummy MHU driver
Add some comments to the mailbox header file
Change-Id: I0950a7ca3afeec88ca691ca2486022dfbb3319b8
Diffstat (limited to 'drivers/mhu_juno/include')
-rw-r--r-- | drivers/mhu_juno/include/mhu_juno.hpp | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/drivers/mhu_juno/include/mhu_juno.hpp b/drivers/mhu_juno/include/mhu_juno.hpp new file mode 100644 index 0000000..f864cd5 --- /dev/null +++ b/drivers/mhu_juno/include/mhu_juno.hpp @@ -0,0 +1,66 @@ +/* + * Copyright (c) 2020 Arm Limited. All rights reserved. + * + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the License); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an AS IS BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef MHU_JUNO_HPP +#define MHU_JUNO_HPP + +#include <mailbox.hpp> + +#include <cstddef> +#include <cstdint> + +namespace Mailbox { + +// Doorbell implementation only +class MHUJuno : public Mailbox { +public: + MHUJuno(const uint32_t baseAddress); + virtual ~MHUJuno(); + virtual bool sendMessage() final; + virtual void handleMessage() final; + virtual bool verifyHardware() final; + +private: + /* Offsets */ + static constexpr uint32_t CPU0_INTR_STAT = 0x00; + static constexpr uint32_t CPU0_INTR_SET = 0x04; + static constexpr uint32_t CPU0_INTR_CLR = 0x08; + static constexpr uint32_t CPU1_INTR_STAT = 0x10; + static constexpr uint32_t CPU1_INTR_SET = 0x14; + static constexpr uint32_t CPU1_INTR_CLR = 0x18; + static constexpr uint32_t OFFSET = 0x10; + static constexpr uint32_t PIDR0 = 0xfe0; + static constexpr uint32_t PIDR1 = 0xfe4; + static constexpr uint32_t PIDR2 = 0xfe8; + static constexpr uint32_t PIDR3 = 0xfec; + static constexpr uint32_t PIDR4 = 0xfd0; + static constexpr uint32_t CIDR0 = 0xff0; + static constexpr uint32_t CIDR1 = 0xff4; + static constexpr uint32_t CIDR2 = 0xff8; + static constexpr uint32_t CIDR3 = 0xffc; + + volatile uint32_t *baseAddr; + + void clearMessage(); + void write(uint32_t offset, uint32_t val); + uint32_t read(uint32_t offset); +}; + +} // namespace Mailbox + +#endif /* #ifndef MHU_JUNO_HPP */ |