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Date: Tue, 27 Jun 2023 07:12:13 -0700 Message-Id: <20230627141216.3962299-1-tommy.wu@sifive.com> X-Mailer: git-send-email 2.38.1 MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::630; envelope-from=tommy.wu@sifive.com; helo=mail-pl1-x630.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org The HiFive 1 rev b includes a watchdog module based on a 32-bit counter. The watchdog timer is in the always-on domain device of HiFive 1 rev b, so this patch added the AON device to the sifive_e machine. This patch only implemented the functionality of the watchdog timer, not all the functionality of the AON device. You can test the patchset by the QTest tests/qtest/sifive-e-aon-watchdog-test.c Changes since v1 ( Thank Alistair for the feedback ): - Use the register field macro. - Delete the public create function. The board creates the aon device itself. - Keep all variable declarations at the top of the code block. Changes since v2 ( Thank Alistair for the feedback ): - Delete the declaration and definition of the create function. Changes since v3 ( Thank Alistair and Thomas for the feedback ): - Use `device_class_set_props()` for the properties in sifive_e_aon device. - Add SPDX identifier in QTEST. - Use libqtest.h in QTEST. - Let the statements on one line as long as they still fit into 80 columns. Changes since v4 ( Thank Phil for the feedback ): - Improve code style consistency. - Move the timer create function to the sifive_e_aon_init. - Allocate the sifive_e_aon device state in the SoC. Changes since v5 ( Thank Alistair for the feedback ): - Rebase to the riscv-to-apply.next branch. Tommy Wu (3): hw/misc: sifive_e_aon: Support the watchdog timer of HiFive 1 rev b. hw/riscv: sifive_e: Support the watchdog timer of HiFive 1 rev b. tests/qtest: sifive-e-aon-watchdog-test.c: Add QTest of watchdog of sifive_e hw/misc/Kconfig | 3 + hw/misc/meson.build | 1 + hw/misc/sifive_e_aon.c | 319 ++++++++++++++++ hw/riscv/Kconfig | 1 + hw/riscv/sifive_e.c | 17 +- include/hw/misc/sifive_e_aon.h | 60 +++ include/hw/riscv/sifive_e.h | 9 +- tests/qtest/meson.build | 3 + tests/qtest/sifive-e-aon-watchdog-test.c | 450 +++++++++++++++++++++++ 9 files changed, 858 insertions(+), 5 deletions(-) create mode 100644 hw/misc/sifive_e_aon.c create mode 100644 include/hw/misc/sifive_e_aon.h create mode 100644 tests/qtest/sifive-e-aon-watchdog-test.c