Add PRCI mmio base address and size mappings to sifive_u machine, and generate the corresponding device tree node.
Signed-off-by: Bin Meng <bmeng...@gmail.com> --- Changes in v2: None hw/riscv/sifive_u.c | 21 ++++++++++++++++++++- include/hw/riscv/sifive_u.h | 1 + 2 files changed, 21 insertions(+), 1 deletion(-) diff --git a/hw/riscv/sifive_u.c b/hw/riscv/sifive_u.c index 9529154..cab329a 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. @@ -42,6 +43,7 @@ #include "hw/riscv/sifive_clint.h" #include "hw/riscv/sifive_uart.h" #include "hw/riscv/sifive_u.h" +#include "hw/riscv/sifive_u_prci.h" #include "hw/riscv/boot.h" #include "chardev/char.h" #include "sysemu/arch_init.h" @@ -60,6 +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] = { 0x10010000, 0x1000 }, [SIFIVE_U_UART1] = { 0x10011000, 0x1000 }, [SIFIVE_U_DRAM] = { 0x80000000, 0x0 }, @@ -76,7 +79,7 @@ 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 hfclk_phandle, rtcclk_phandle; fdt = s->fdt = create_device_tree(&s->fdt_size); @@ -183,6 +186,21 @@ 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, s->soc.cpus.num_harts * 4 - 2); for (cpu = 0; cpu < s->soc.cpus.num_harts; cpu++) { @@ -422,6 +440,7 @@ static void riscv_sifive_u_soc_realize(DeviceState *dev, Error **errp) sifive_clint_create(memmap[SIFIVE_U_CLINT].base, memmap[SIFIVE_U_CLINT].size, ms->smp.cpus, SIFIVE_SIP_BASE, SIFIVE_TIMECMP_BASE, SIFIVE_TIME_BASE); + sifive_u_prci_create(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 bacd60f..19d5a6f 100644 --- a/include/hw/riscv/sifive_u.h +++ b/include/hw/riscv/sifive_u.h @@ -51,6 +51,7 @@ 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