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Sun, 25 Feb 2024 16:03:16 -0800 (PST) From: Sergey Kambalin X-Google-Original-From: Sergey Kambalin To: qemu-arm@nongnu.org Cc: qemu-devel@nongnu.org, Sergey Kambalin , Peter Maydell Subject: [PATCH v6 11/41] Temporarily disable unimplemented rpi4b devices Date: Sun, 25 Feb 2024 18:02:29 -0600 Message-Id: <20240226000259.2752893-12-sergey.kambalin@auriga.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240226000259.2752893-1-sergey.kambalin@auriga.com> References: <20240226000259.2752893-1-sergey.kambalin@auriga.com> 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=2607:f8b0:4864:20::112e; envelope-from=serg.oker@gmail.com; helo=mail-yw1-x112e.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, FREEMAIL_FROM=0.001, 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @gmail.com) X-ZM-MESSAGEID: 1708906341843100007 Content-Type: text/plain; charset="utf-8" This commit adds RPi4B device tree modifications: - disable pcie, rng200, thermal sensor and genet devices (they're going to be re-enabled in the following commits) - create additional memory region in device tree if RAM amount exceeds VC base address. Signed-off-by: Sergey Kambalin Reviewed-by: Peter Maydell --- hw/arm/raspi.c | 5 +-- hw/arm/raspi4b.c | 62 +++++++++++++++++++++++++++++++++ include/hw/arm/raspi_platform.h | 4 +++ 3 files changed, 67 insertions(+), 4 deletions(-) diff --git a/hw/arm/raspi.c b/hw/arm/raspi.c index 8b1a046912..a7a662f40d 100644 --- a/hw/arm/raspi.c +++ b/hw/arm/raspi.c @@ -37,9 +37,6 @@ OBJECT_DECLARE_SIMPLE_TYPE(RaspiMachineState, RASPI_MACHI= NE) #define FIRMWARE_ADDR_3 0x80000 /* Pi 3 loads kernel.img here by default */ #define SPINTABLE_ADDR 0xd8 /* Pi 3 bootloader spintable */ =20 -/* Registered machine type (matches RPi Foundation bootloader and U-Boot) = */ -#define MACH_TYPE_BCM2708 3138 - struct RaspiMachineState { /*< private >*/ RaspiBaseMachineState parent_obj; @@ -75,7 +72,7 @@ static const struct { [PROCESSOR_ID_BCM2838] =3D {TYPE_BCM2838, BCM283X_NCPUS}, }; =20 -static uint64_t board_ram_size(uint32_t board_rev) +uint64_t board_ram_size(uint32_t board_rev) { assert(FIELD_EX32(board_rev, REV_CODE, STYLE)); /* Only new style */ return 256 * MiB << FIELD_EX32(board_rev, REV_CODE, MEMORY_SIZE); diff --git a/hw/arm/raspi4b.c b/hw/arm/raspi4b.c index 36a4593928..49dec6e53a 100644 --- a/hw/arm/raspi4b.c +++ b/hw/arm/raspi4b.c @@ -21,6 +21,7 @@ #include "hw/arm/boot.h" #include "qom/object.h" #include "hw/arm/bcm2838.h" +#include =20 #define TYPE_RASPI4B_MACHINE MACHINE_TYPE_NAME("raspi4b-2g") OBJECT_DECLARE_SIMPLE_TYPE(Raspi4bMachineState, RASPI4B_MACHINE) @@ -30,6 +31,66 @@ struct Raspi4bMachineState { BCM2838State soc; }; =20 +/* + * Add second memory region if board RAM amount exceeds VC base address + * (see https://datasheets.raspberrypi.com/bcm2711/bcm2711-peripherals.pdf + * 1.2 Address Map) + */ +static int raspi_add_memory_node(void *fdt, hwaddr mem_base, hwaddr mem_le= n) +{ + int ret; + uint32_t acells, scells; + char *nodename =3D g_strdup_printf("/memory@%" PRIx64, mem_base); + + acells =3D qemu_fdt_getprop_cell(fdt, "/", "#address-cells", + NULL, &error_fatal); + scells =3D qemu_fdt_getprop_cell(fdt, "/", "#size-cells", + NULL, &error_fatal); + if (acells =3D=3D 0 || scells =3D=3D 0) { + fprintf(stderr, "dtb file invalid (#address-cells or #size-cells 0= )\n"); + ret =3D -1; + } else { + qemu_fdt_add_subnode(fdt, nodename); + qemu_fdt_setprop_string(fdt, nodename, "device_type", "memory"); + ret =3D qemu_fdt_setprop_sized_cells(fdt, nodename, "reg", + acells, mem_base, + scells, mem_len); + } + + g_free(nodename); + return ret; +} + +static void raspi4_modify_dtb(const struct arm_boot_info *info, void *fdt) +{ + uint64_t ram_size; + + /* Temporarily disable following devices until they are implemented */ + const char *nodes_to_remove[] =3D { + "brcm,bcm2711-pcie", + "brcm,bcm2711-rng200", + "brcm,bcm2711-thermal", + "brcm,bcm2711-genet-v5", + }; + + for (int i =3D 0; i < ARRAY_SIZE(nodes_to_remove); i++) { + const char *dev_str =3D nodes_to_remove[i]; + + int offset =3D fdt_node_offset_by_compatible(fdt, -1, dev_str); + if (offset >=3D 0) { + if (!fdt_nop_node(fdt, offset)) { + warn_report("bcm2711 dtc: %s has been disabled!", dev_str); + } + } + } + + ram_size =3D board_ram_size(info->board_id); + + if (info->ram_size > UPPER_RAM_BASE) { + raspi_add_memory_node(fdt, UPPER_RAM_BASE, ram_size - UPPER_RAM_BA= SE); + } +} + static void raspi4b_machine_init(MachineState *machine) { Raspi4bMachineState *s =3D RASPI4B_MACHINE(machine); @@ -37,6 +98,7 @@ static void raspi4b_machine_init(MachineState *machine) RaspiBaseMachineClass *mc =3D RASPI_BASE_MACHINE_GET_CLASS(machine); BCM2838State *soc =3D &s->soc; =20 + s_base->binfo.modify_dtb =3D raspi4_modify_dtb; s_base->binfo.board_id =3D mc->board_rev; =20 object_initialize_child(OBJECT(machine), "soc", soc, diff --git a/include/hw/arm/raspi_platform.h b/include/hw/arm/raspi_platfor= m.h index 45003e2425..0db146e592 100644 --- a/include/hw/arm/raspi_platform.h +++ b/include/hw/arm/raspi_platform.h @@ -31,6 +31,9 @@ #include "hw/boards.h" #include "hw/arm/boot.h" =20 +/* Registered machine type (matches RPi Foundation bootloader and U-Boot) = */ +#define MACH_TYPE_BCM2708 3138 + #define TYPE_RASPI_BASE_MACHINE MACHINE_TYPE_NAME("raspi-base") OBJECT_DECLARE_TYPE(RaspiBaseMachineState, RaspiBaseMachineClass, RASPI_BASE_MACHINE) @@ -59,6 +62,7 @@ void raspi_base_machine_init(MachineState *machine, =20 void raspi_machine_class_common_init(MachineClass *mc, uint32_t board_rev); +uint64_t board_ram_size(uint32_t board_rev); =20 #define MSYNC_OFFSET 0x0000 /* Multicore Sync Block */ #define CCPT_OFFSET 0x1000 /* Compact Camera Port 2 TX */ --=20 2.34.1