Bin Meng 3eaea6eb4e hw/riscv: sifive_u: Add a dummy DDR memory controller device ... It is enough to simply map the SiFive FU540 DDR memory controller into the MMIO space using create_unimplemented_device(), to make the upstream U-Boot v2020.07 DDR memory initialization codes happy. Note we do not generate device tree fragment for the DDR memory controller. Since the controller data in device tree consumes a very large space (see fu540-hifive-unleashed-a00-ddr.dtsi in the U-Boot source), and it is only needed by U-Boot SPL but not any operating system, we choose not to generate the fragment here. This also means when testing with U-Boot SPL, the device tree has to come from U-Boot SPL itself, but not the one generated by QEMU on the fly. The memory has to be set to 8GiB to match the real HiFive Unleashed board when invoking QEMU (-m 8G). With this commit, QEMU can boot U-Boot SPL built for SiFive FU540 all the way up to loading U-Boot proper from MMC: $ qemu-system-riscv64 -nographic -M sifive_u,msel=6 -m 8G -bios u-boot-spl.bin U-Boot SPL 2020.07-rc3-00208-g88bd5b1 (Jun 08 2020 - 20:16:10 +0800) Trying to boot from MMC1 Unhandled exception: Load access fault EPC: 0000000008009be6 TVAL: 0000000010050014 The above exception is expected because QSPI is unsupported yet. Signed-off-by: Bin Meng <bin.meng@windriver.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 1592268641-7478-6-git-send-email-bmeng.cn@gmail.com Message-Id: <1592268641-7478-6-git-send-email-bmeng.cn@gmail.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>		2020-06-19 08:25:27 -07:00
..
boot.c	riscv: Change the default behavior if no -bios option is specified	2020-06-03 09:11:51 -07:00
Kconfig	hw/char: Initial commit of Ibex UART	2020-06-19 08:24:07 -07:00
Makefile.objs	riscv: Initial commit of OpenTitan machine	2020-06-03 09:11:51 -07:00
opentitan.c	hw/riscv: opentitan: Remove the riscv_ prefix of the machine* and soc* functions	2020-06-19 08:24:07 -07:00
riscv_hart.c	qdev: Convert bus-less devices to qdev_realize() with Coccinelle	2020-06-15 22:06:04 +02:00
riscv_htif.c	chardev: Use QEMUChrEvent enum in IOEventHandler typedef	2020-01-08 11:15:35 +01:00
sifive_clint.c	sysbus: Convert to sysbus_realize() etc. with Coccinelle	2020-06-15 22:05:28 +02:00
sifive_e_prci.c	sysbus: Convert to sysbus_realize() etc. with Coccinelle	2020-06-15 22:05:28 +02:00
sifive_e.c	hw/riscv: sifive: Change SiFive E/U CPU reset vector to 0x1004	2020-06-19 08:25:27 -07:00
sifive_gpio.c	hw/riscv: sifive_gpio: Do not blindly trigger output IRQs	2020-06-19 08:25:27 -07:00
sifive_plic.c	sysbus: Convert to sysbus_realize() etc. with Coccinelle	2020-06-15 22:05:28 +02:00
sifive_test.c	sysbus: Convert to sysbus_realize() etc. with Coccinelle	2020-06-15 22:05:28 +02:00
sifive_u_otp.c	qdev: set properties with device_class_set_props()	2020-01-24 20:59:15 +01:00
sifive_u_prci.c	riscv: sifive: Implement PRCI model for FU540	2019-09-17 08:42:47 -07:00
sifive_u.c	hw/riscv: sifive_u: Add a dummy DDR memory controller device	2020-06-19 08:25:27 -07:00
sifive_uart.c	chardev: Use QEMUChrEvent enum in IOEventHandler typedef	2020-01-08 11:15:35 +01:00
spike.c	sysbus: Convert qdev_set_parent_bus() use with Coccinelle, part 1	2020-06-15 22:06:04 +02:00
trace-events	SiFive RISC-V GPIO Device	2019-05-24 11:58:30 -07:00
virt.c	sysbus: Convert qdev_set_parent_bus() use with Coccinelle, part 1	2020-06-15 22:06:04 +02:00