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X-Received-From: 2607:f8b0:4864:20::541 Subject: [Qemu-devel] [PATCH v3 15/28] riscv: sifive_u: Generate hfclk and rtcclk nodes X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 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" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" To keep in sync with Linux kernel device tree, generate hfclk and rtcclk nodes in the device tree, to be referenced by PRCI node. Signed-off-by: Bin Meng --- Changes in v3: None Changes in v2: None hw/riscv/sifive_u.c | 23 +++++++++++++++++++++++ include/hw/riscv/sifive_u.h | 2 ++ 2 files changed, 25 insertions(+) diff --git a/hw/riscv/sifive_u.c b/hw/riscv/sifive_u.c index e071838..f2b711a 100644 --- a/hw/riscv/sifive_u.c +++ b/hw/riscv/sifive_u.c @@ -77,6 +77,7 @@ static void create_fdt(SiFiveUState *s, const struct Memm= apEntry *memmap, char *nodename; char ethclk_names[] =3D "pclk\0hclk\0tx_clk"; uint32_t plic_phandle, ethclk_phandle, phandle =3D 1; + uint32_t hfclk_phandle, rtcclk_phandle; =20 fdt =3D s->fdt =3D create_device_tree(&s->fdt_size); if (!fdt) { @@ -95,6 +96,28 @@ static void create_fdt(SiFiveUState *s, const struct Mem= mapEntry *memmap, qemu_fdt_setprop_cell(fdt, "/soc", "#size-cells", 0x2); qemu_fdt_setprop_cell(fdt, "/soc", "#address-cells", 0x2); =20 + hfclk_phandle =3D phandle++; + nodename =3D g_strdup_printf("/hfclk"); + qemu_fdt_add_subnode(fdt, nodename); + qemu_fdt_setprop_cell(fdt, nodename, "phandle", hfclk_phandle); + qemu_fdt_setprop_string(fdt, nodename, "clock-output-names", "hfclk"); + qemu_fdt_setprop_cell(fdt, nodename, "clock-frequency", + SIFIVE_U_HFCLK_FREQ); + qemu_fdt_setprop_string(fdt, nodename, "compatible", "fixed-clock"); + qemu_fdt_setprop_cell(fdt, nodename, "#clock-cells", 0x0); + g_free(nodename); + + rtcclk_phandle =3D phandle++; + nodename =3D g_strdup_printf("/rtcclk"); + qemu_fdt_add_subnode(fdt, nodename); + qemu_fdt_setprop_cell(fdt, nodename, "phandle", rtcclk_phandle); + qemu_fdt_setprop_string(fdt, nodename, "clock-output-names", "rtcclk"); + qemu_fdt_setprop_cell(fdt, nodename, "clock-frequency", + SIFIVE_U_RTCCLK_FREQ); + qemu_fdt_setprop_string(fdt, nodename, "compatible", "fixed-clock"); + qemu_fdt_setprop_cell(fdt, nodename, "#clock-cells", 0x0); + g_free(nodename); + nodename =3D g_strdup_printf("/memory@%lx", (long)memmap[SIFIVE_U_DRAM].base); qemu_fdt_add_subnode(fdt, nodename); diff --git a/include/hw/riscv/sifive_u.h b/include/hw/riscv/sifive_u.h index d0d8528..2b57ffc 100644 --- a/include/hw/riscv/sifive_u.h +++ b/include/hw/riscv/sifive_u.h @@ -65,6 +65,8 @@ enum { =20 enum { SIFIVE_U_CLOCK_FREQ =3D 1000000000, + SIFIVE_U_HFCLK_FREQ =3D 33333333, + SIFIVE_U_RTCCLK_FREQ =3D 1000000, SIFIVE_U_GEM_CLOCK_FREQ =3D 125000000 }; =20 --=20 2.7.4