diff options
| author | Bin Meng <bmeng.cn@gmail.com> | 2019-09-06 09:20:16 -0700 |
|---|---|---|
| committer | Palmer Dabbelt <palmer@sifive.com> | 2019-09-17 08:42:49 -0700 |
| commit | 5461c4fefed627eac9e1cadfb5754fc985d6df89 (patch) | |
| tree | f0dad175201f75ce33e365024906b2b978caf832 /hw/riscv | |
| parent | 9fb45c62ae88726eb472656ae90683098473041a (diff) | |
riscv: sifive_u: Instantiate OTP memory with a serial number
This adds an OTP memory with a given serial number to the sifive_u
machine. With such support, the upstream U-Boot for sifive_fu540
boots out of the box on the sifive_u machine.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
Diffstat (limited to 'hw/riscv')
| -rw-r--r-- | hw/riscv/sifive_u.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/hw/riscv/sifive_u.c b/hw/riscv/sifive_u.c index 24f8c19eee..f5f0c3cbb2 100644 --- a/hw/riscv/sifive_u.c +++ b/hw/riscv/sifive_u.c @@ -10,6 +10,7 @@ * 1) CLINT (Core Level Interruptor) * 2) PLIC (Platform Level Interrupt Controller) * 3) PRCI (Power, Reset, Clock, Interrupt) + * 4) OTP (One-Time Programmable) memory with stored serial number * * This board currently generates devicetree dynamically that indicates at least * two harts and up to five harts. @@ -64,10 +65,12 @@ static const struct MemmapEntry { [SIFIVE_U_PRCI] = { 0x10000000, 0x1000 }, [SIFIVE_U_UART0] = { 0x10010000, 0x1000 }, [SIFIVE_U_UART1] = { 0x10011000, 0x1000 }, + [SIFIVE_U_OTP] = { 0x10070000, 0x1000 }, [SIFIVE_U_DRAM] = { 0x80000000, 0x0 }, [SIFIVE_U_GEM] = { 0x100900FC, 0x2000 }, }; +#define OTP_SERIAL 1 #define GEM_REVISION 0x10070109 static void create_fdt(SiFiveUState *s, const struct MemmapEntry *memmap, @@ -422,6 +425,9 @@ static void riscv_sifive_u_soc_init(Object *obj) sysbus_init_child_obj(obj, "prci", &s->prci, sizeof(s->prci), TYPE_SIFIVE_U_PRCI); + sysbus_init_child_obj(obj, "otp", &s->otp, sizeof(s->otp), + TYPE_SIFIVE_U_OTP); + qdev_prop_set_uint32(DEVICE(&s->otp), "serial", OTP_SERIAL); sysbus_init_child_obj(obj, "gem", &s->gem, sizeof(s->gem), TYPE_CADENCE_GEM); } @@ -498,6 +504,9 @@ static void riscv_sifive_u_soc_realize(DeviceState *dev, Error **errp) object_property_set_bool(OBJECT(&s->prci), true, "realized", &err); sysbus_mmio_map(SYS_BUS_DEVICE(&s->prci), 0, memmap[SIFIVE_U_PRCI].base); + object_property_set_bool(OBJECT(&s->otp), true, "realized", &err); + sysbus_mmio_map(SYS_BUS_DEVICE(&s->otp), 0, memmap[SIFIVE_U_OTP].base); + for (i = 0; i < SIFIVE_U_PLIC_NUM_SOURCES; i++) { plic_gpios[i] = qdev_get_gpio_in(DEVICE(s->plic), i); } |