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[147.11.224.80]) by smtp.gmail.com with ESMTPSA id v189sm1122527pfv.176.2019.08.22.22.11.38 (version=TLS1 cipher=AES128-SHA bits=128/128); Thu, 22 Aug 2019 22:11:39 -0700 (PDT) From: Bin Meng To: Alistair Francis , Palmer Dabbelt , qemu-devel@nongnu.org, qemu-riscv@nongnu.org Date: Thu, 22 Aug 2019 22:11:00 -0700 Message-Id: <1566537069-22741-22-git-send-email-bmeng.cn@gmail.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1566537069-22741-1-git-send-email-bmeng.cn@gmail.com> References: <1566537069-22741-1-git-send-email-bmeng.cn@gmail.com> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2607:f8b0:4864:20::542 Subject: [Qemu-devel] [PATCH v5 21/30] riscv: sifive_u: Add PRCI block to the SoC 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+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Add PRCI mmio base address and size mappings to sifive_u machine, and generate the corresponding device tree node. Signed-off-by: Bin Meng --- Changes in v5: - create sifive_u_prci block directly in the machine codes, instead of calling sifive_u_prci_create() Changes in v4: None Changes in v3: None Changes in v2: None hw/riscv/sifive_u.c | 24 +++++++++++++++++++++++- include/hw/riscv/sifive_u.h | 3 +++ 2 files changed, 26 insertions(+), 1 deletion(-) diff --git a/hw/riscv/sifive_u.c b/hw/riscv/sifive_u.c index 08db741..c777d41 100644 --- a/hw/riscv/sifive_u.c +++ b/hw/riscv/sifive_u.c @@ -9,6 +9,7 @@ * 0) UART * 1) CLINT (Core Level Interruptor) * 2) PLIC (Platform Level Interrupt Controller) + * 3) PRCI (Power, Reset, Clock, Interrupt) * * This board currently generates devicetree dynamically that indicates at least * two harts and up to five harts. @@ -61,6 +62,7 @@ static const struct MemmapEntry { [SIFIVE_U_MROM] = { 0x1000, 0x11000 }, [SIFIVE_U_CLINT] = { 0x2000000, 0x10000 }, [SIFIVE_U_PLIC] = { 0xc000000, 0x4000000 }, + [SIFIVE_U_PRCI] = { 0x10000000, 0x1000 }, [SIFIVE_U_UART0] = { 0x10013000, 0x1000 }, [SIFIVE_U_UART1] = { 0x10023000, 0x1000 }, [SIFIVE_U_DRAM] = { 0x80000000, 0x0 }, @@ -78,7 +80,7 @@ static void create_fdt(SiFiveUState *s, const struct MemmapEntry *memmap, uint32_t *cells; char *nodename; char ethclk_names[] = "pclk\0hclk\0tx_clk"; - uint32_t plic_phandle, ethclk_phandle, phandle = 1; + uint32_t plic_phandle, prci_phandle, ethclk_phandle, phandle = 1; uint32_t uartclk_phandle; uint32_t hfclk_phandle, rtcclk_phandle; @@ -189,6 +191,21 @@ static void create_fdt(SiFiveUState *s, const struct MemmapEntry *memmap, g_free(cells); g_free(nodename); + prci_phandle = phandle++; + nodename = g_strdup_printf("/soc/clock-controller@%lx", + (long)memmap[SIFIVE_U_PRCI].base); + qemu_fdt_add_subnode(fdt, nodename); + qemu_fdt_setprop_cell(fdt, nodename, "phandle", prci_phandle); + qemu_fdt_setprop_cell(fdt, nodename, "#clock-cells", 0x1); + qemu_fdt_setprop_cells(fdt, nodename, "clocks", + hfclk_phandle, rtcclk_phandle); + qemu_fdt_setprop_cells(fdt, nodename, "reg", + 0x0, memmap[SIFIVE_U_PRCI].base, + 0x0, memmap[SIFIVE_U_PRCI].size); + qemu_fdt_setprop_string(fdt, nodename, "compatible", + "sifive,fu540-c000-prci"); + g_free(nodename); + plic_phandle = phandle++; cells = g_new0(uint32_t, ms->smp.cpus * 4 - 2); for (cpu = 0; cpu < ms->smp.cpus; cpu++) { @@ -411,6 +428,8 @@ static void riscv_sifive_u_soc_init(Object *obj) "cpu-type", &error_abort); } + sysbus_init_child_obj(obj, "prci", &s->prci, sizeof(s->prci), + TYPE_SIFIVE_U_PRCI); sysbus_init_child_obj(obj, "gem", &s->gem, sizeof(s->gem), TYPE_CADENCE_GEM); } @@ -484,6 +503,9 @@ static void riscv_sifive_u_soc_realize(DeviceState *dev, Error **errp) memmap[SIFIVE_U_CLINT].size, ms->smp.cpus, SIFIVE_SIP_BASE, SIFIVE_TIMECMP_BASE, SIFIVE_TIME_BASE); + object_property_set_bool(OBJECT(&s->prci), true, "realized", &err); + sysbus_mmio_map(SYS_BUS_DEVICE(&s->prci), 0, memmap[SIFIVE_U_PRCI].base); + for (i = 0; i < SIFIVE_U_PLIC_NUM_SOURCES; i++) { plic_gpios[i] = qdev_get_gpio_in(DEVICE(s->plic), i); } diff --git a/include/hw/riscv/sifive_u.h b/include/hw/riscv/sifive_u.h index debbf28..2a023be 100644 --- a/include/hw/riscv/sifive_u.h +++ b/include/hw/riscv/sifive_u.h @@ -21,6 +21,7 @@ #include "hw/net/cadence_gem.h" #include "hw/riscv/sifive_cpu.h" +#include "hw/riscv/sifive_u_prci.h" #define TYPE_RISCV_U_SOC "riscv.sifive.u.soc" #define RISCV_U_SOC(obj) \ @@ -36,6 +37,7 @@ typedef struct SiFiveUSoCState { RISCVHartArrayState e_cpus; RISCVHartArrayState u_cpus; DeviceState *plic; + SiFiveUPRCIState prci; CadenceGEMState gem; } SiFiveUSoCState; @@ -54,6 +56,7 @@ enum { SIFIVE_U_MROM, SIFIVE_U_CLINT, SIFIVE_U_PLIC, + SIFIVE_U_PRCI, SIFIVE_U_UART0, SIFIVE_U_UART1, SIFIVE_U_DRAM, -- 2.7.4