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a=rsa-sha256; c=relaxed/relaxed; d=kernel-space.org; s=s1; t=1709976787; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=RhTm7ZUwb5pC4k/n/Wk7PbjmWWWIUggmraXNJnyAnvI=; b=M4eddSb0HjICV8GYysjrBJC5p1Gb649FseuQhXr5PSZEcP/sS2UIw8nRwwCNZISQCfadkU 7FczYhERPqZkPhFAd/2M6shC/FB6LPK3AF88SBdmxWbacM/hGaEcyH6CkwPru449FhSPkV 4iRASV2diO5NVGMJ5dSkrOpqeh1ZNu8= From: Angelo Dureghello To: huth@tuxfamily.org Cc: qemu-devel@nongnu.org, Angelo Dureghello Subject: [PATCH v3] hw/m68k/mcf5208: add support for reset Date: Sat, 9 Mar 2024 10:34:59 +0100 Message-ID: <20240309093459.984565-1-angelo@kernel-space.org> X-Mailer: git-send-email 2.44.0 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=195.201.34.187; envelope-from=angelo@kernel-space.org; helo=mail.kernel-space.org 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, 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @kernel-space.org) (identity @kernel-space.org) X-ZM-MESSAGEID: 1709976992921100003 Content-Type: text/plain; charset="utf-8" Add reset support for mcf5208. Signed-off-by: Angelo Dureghello Reviewed-by: Thomas Huth --- hw/m68k/mcf5208.c | 44 ++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 42 insertions(+), 2 deletions(-) diff --git a/hw/m68k/mcf5208.c b/hw/m68k/mcf5208.c index 0cfb806c20..ec14096aa4 100644 --- a/hw/m68k/mcf5208.c +++ b/hw/m68k/mcf5208.c @@ -40,6 +40,8 @@ #define PCSR_PRE_SHIFT 8 #define PCSR_PRE_MASK 0x0f00 =20 +#define RCR_SOFTRST 0x80 + typedef struct { MemoryRegion iomem; qemu_irq irq; @@ -185,12 +187,50 @@ static const MemoryRegionOps m5208_sys_ops =3D { .endianness =3D DEVICE_NATIVE_ENDIAN, }; =20 -static void mcf5208_sys_init(MemoryRegion *address_space, qemu_irq *pic) +static uint64_t m5208_rcm_read(void *opaque, hwaddr addr, + unsigned size) +{ + return 0; +} + +static void m5208_rcm_write(void *opaque, hwaddr addr, + uint64_t value, unsigned size) +{ + M68kCPU *cpu =3D opaque; + CPUState *cs =3D CPU(cpu); + switch (addr) { + case 0x0: /* RCR */ + if (value & RCR_SOFTRST) { + cpu_reset(cs); + cpu->env.aregs[7] =3D ldl_phys(cs->as, 0); + cpu->env.pc =3D ldl_phys(cs->as, 4); + } + break; + default: + qemu_log_mask(LOG_GUEST_ERROR, "%s: Bad offset 0x%" HWADDR_PRIX "\= n", + __func__, addr); + break; + } +} + +static const MemoryRegionOps m5208_rcm_ops =3D { + .read =3D m5208_rcm_read, + .write =3D m5208_rcm_write, + .endianness =3D DEVICE_NATIVE_ENDIAN, +}; + +static void mcf5208_sys_init(MemoryRegion *address_space, qemu_irq *pic, + M68kCPU *cpu) { MemoryRegion *iomem =3D g_new(MemoryRegion, 1); + MemoryRegion *iomem_rcm =3D g_new(MemoryRegion, 1); m5208_timer_state *s; int i; =20 + /* RCM */ + memory_region_init_io(iomem_rcm, NULL, &m5208_rcm_ops, cpu, + "m5208-rcm", 0x00000080); + memory_region_add_subregion(address_space, 0xfc0a0000, iomem_rcm); /* SDRAMC. */ memory_region_init_io(iomem, NULL, &m5208_sys_ops, NULL, "m5208-sys", = 0x00004000); memory_region_add_subregion(address_space, 0xfc0a8000, iomem); @@ -265,7 +305,7 @@ static void mcf5208evb_init(MachineState *machine) mcf_uart_create_mmap(0xfc064000, pic[27], serial_hd(1)); mcf_uart_create_mmap(0xfc068000, pic[28], serial_hd(2)); =20 - mcf5208_sys_init(address_space_mem, pic); + mcf5208_sys_init(address_space_mem, pic, cpu); =20 mcf_fec_init(address_space_mem, 0xfc030000, pic + 36); =20 --=20 2.44.0