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[83.52.172.117]) by smtp.gmail.com with ESMTPSA id u20sm13159004wmm.29.2020.10.18.13.56.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 18 Oct 2020 13:56:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=H4Vj4prHafiErMNGerrw49ZgJ7IM19BsKxuWO4t5AF8=; b=rO1ItjBKyeiW1aL2VZWP1VWyDoieT2uDkEkaSyU4wBw8KpKSsWym96gcMfYja3dRYG hhk39KvxVuZv6cdAdOBe746VUG9oCniDbR4HBu9DFAIMvNZkBr9l1n9vt/HkTeRYn9sn EpvLqp0XKk0C/OWxjbIulNg83ybZVxo0EcUL8ks1jsAk30g6q6gEhSBsl2yLjNjI4p0u 9vde+OlvMkWCBsVaTK/5MQs9gRJkGFPDmocg/p4DLKllDUKaV+Tbx3rXtViIM+IJ383E emQR+JybIovRUz0f26IBEHUgdA57zwt4PyPPvCt+qbOsjL1Dm83qg0BrP1tzD+JREoUe 0OaQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:from:to:cc:subject:date:message-id :in-reply-to:references:mime-version:content-transfer-encoding; bh=H4Vj4prHafiErMNGerrw49ZgJ7IM19BsKxuWO4t5AF8=; b=hIICvywlpxCdLUWhFHPzjiyTDfhZc+zkd3yLQijyLdNaMGQA+X2uuIX2RbJJutn2cr 4wpZviSxIH2pN3HNlsGrquCb/pAdO8FbAKsO2J0ieWgOjrDMLv2iT1L2x7ehour6ZK4I wvsNA6j7CIa2L0zxgA1Kndj+dDQjeEE8Nbg7geqLtqiKB4xZRQZCUrymIuMo/knu+Syo J9mIDPv/29R1hp8rl5+iUVWBfN2Au3UEbz5Nbxe4CJSsDk+wGWlxXQ7p8ZqCcK49JGg+ ntZ4inbAn7qL+TM6hOk4gUNoDJmrgEP9P9pauMedyLS6kM/euRTEKhpa3wKbJ4bl3ibk OWjg== X-Gm-Message-State: AOAM530eVt46TAH1N9C3ZX+Qp8ReEQ60mGes6HPpWhfeZdT0a1WPfsi1 r6DklQAY00AWvPzqVO1RhFs= X-Google-Smtp-Source: ABdhPJxS32rV2nA5cYZZMxE8yQCXRc/20UUlieVTDzs6VAKfIgViQQsoIroDAY/YTZsE0V6I9qL8FA== X-Received: by 2002:a5d:43c6:: with SMTP id v6mr16119386wrr.20.1603054567144; Sun, 18 Oct 2020 13:56:07 -0700 (PDT) Sender: =?UTF-8?Q?Philippe_Mathieu=2DDaud=C3=A9?= From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Cc: Johnny Sun , Peter Maydell , qemu-arm@nongnu.org, Stewart Hildebrand , Andrew Baumann , Esteban Bosse , Luc Michel , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Subject: [NOTFORMERGE PATCH v2 3/3] hw/arm/raspi: Remove unsupported raspi4 peripherals from device tree Date: Sun, 18 Oct 2020 22:55:51 +0200 Message-Id: <20201018205551.1537927-4-f4bug@amsat.org> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20201018205551.1537927-1-f4bug@amsat.org> References: <20201018205551.1537927-1-f4bug@amsat.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-ZohoMail-DKIM: pass (identity @gmail.com) Kludge when using Linux kernels to reach userland. No device in DT -> no hardware initialization. Linux 5.9 uses the RPI_FIRMWARE_GET_CLOCKS so we now need to implement that feature too. Look like a cat and mouse game... Signed-off-by: Philippe Mathieu-Daud=C3=A9 --- hw/arm/raspi.c | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) diff --git a/hw/arm/raspi.c b/hw/arm/raspi.c index 6a793766840..93eb6591ee8 100644 --- a/hw/arm/raspi.c +++ b/hw/arm/raspi.c @@ -25,6 +25,7 @@ #include "hw/arm/boot.h" #include "sysemu/sysemu.h" #include "qom/object.h" +#include =20 #define SMPBOOT_ADDR 0x300 /* this should leave enough space for ATAGS = */ #define MVBAR_ADDR 0x400 /* secure vectors */ @@ -200,6 +201,29 @@ static void reset_secondary(ARMCPU *cpu, const struct = arm_boot_info *info) cpu_set_pc(cs, info->smp_loader_start); } =20 +static void raspi4_modify_dtb(const struct arm_boot_info *info, void *fdt) +{ + int offset; + + offset =3D fdt_node_offset_by_compatible(fdt, -1, "brcm,genet-v5"); + if (offset >=3D 0) { + /* FIXME we shouldn't nop the parent */ + offset =3D fdt_parent_offset(fdt, offset); + if (offset >=3D 0) { + if (!fdt_nop_node(fdt, offset)) { + warn_report("dtc: bcm2838-genet removed!"); + } + } + } + + offset =3D fdt_node_offset_by_compatible(fdt, -1, "brcm,avs-tmon-bcm28= 38"); + if (offset >=3D 0) { + if (!fdt_nop_node(fdt, offset)) { + warn_report("dtc: bcm2838-tmon removed!"); + } + } +} + static void setup_boot(MachineState *machine, RaspiProcessorId processor_i= d, size_t ram_size) { @@ -234,6 +258,9 @@ static void setup_boot(MachineState *machine, RaspiProc= essorId processor_id, } s->binfo.secondary_cpu_reset_hook =3D reset_secondary; } + if (processor_id >=3D PROCESSOR_ID_BCM2838) { + s->binfo.modify_dtb =3D raspi4_modify_dtb; + } =20 /* If the user specified a "firmware" image (e.g. UEFI), we bypass * the normal Linux boot process --=20 2.26.2