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authorAlistair Francis <alistair.francis@wdc.com>2021-07-09 13:38:48 +1000
committerAlistair Francis <alistair.francis@wdc.com>2021-07-15 08:56:00 +1000
commitbb7e0cde3cbd59e8b7d6e0e9c67e11f76cbe64d4 (patch)
treefed0b7016ad8296b0dd3809a77341c0fa41c95ac /hw/riscv
parent5ee257649f1a69d952c56f0a7084653e51971ce5 (diff)
hw/riscv: opentitan: Add the flash alias
OpenTitan has an alias of flash avaliable which is called virtual flash. Add support for that in the QEMU model. Signed-off-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Message-id: c9cfbd2dd840fd0076877b8ea4d6dcfce60db5e9.1625801868.git.alistair.francis@wdc.com
Diffstat (limited to 'hw/riscv')
-rw-r--r--hw/riscv/opentitan.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/hw/riscv/opentitan.c b/hw/riscv/opentitan.c
index 933c211b11..36a41c8b5b 100644
--- a/hw/riscv/opentitan.c
+++ b/hw/riscv/opentitan.c
@@ -59,6 +59,7 @@ static const MemMapEntry ibex_memmap[] = {
[IBEX_DEV_NMI_GEN] = { 0x411c0000, 0x1000 },
[IBEX_DEV_OTBN] = { 0x411d0000, 0x10000 },
[IBEX_DEV_PERI] = { 0x411f0000, 0x10000 },
+ [IBEX_DEV_FLASH_VIRTUAL] = { 0x80000000, 0x80000 },
};
static void opentitan_board_init(MachineState *machine)
@@ -134,8 +135,13 @@ static void lowrisc_ibex_soc_realize(DeviceState *dev_soc, Error **errp)
/* Flash memory */
memory_region_init_rom(&s->flash_mem, OBJECT(dev_soc), "riscv.lowrisc.ibex.flash",
memmap[IBEX_DEV_FLASH].size, &error_fatal);
+ memory_region_init_alias(&s->flash_alias, OBJECT(dev_soc),
+ "riscv.lowrisc.ibex.flash_virtual", &s->flash_mem, 0,
+ memmap[IBEX_DEV_FLASH_VIRTUAL].size);
memory_region_add_subregion(sys_mem, memmap[IBEX_DEV_FLASH].base,
&s->flash_mem);
+ memory_region_add_subregion(sys_mem, memmap[IBEX_DEV_FLASH_VIRTUAL].base,
+ &s->flash_alias);
/* PLIC */
if (!sysbus_realize(SYS_BUS_DEVICE(&s->plic), errp)) {