Commit Graph

6 Commits

Author SHA1 Message Date
Anup Patel ba1f0d9557
RISC-V: refresh defconfig
This patch updates defconfig using savedefconfig on Linux-4.19.  It is
intended to have no functional change.

Signed-off-by: Anup Patel <anup@brainfault.org>
Reviewed-by: Palmer Dabbelt <palmer@sifive.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
2018-11-01 17:04:07 -07:00
Christoph Hellwig 8237f8bc4f
irqchip: add a SiFive PLIC driver
Add a driver for the SiFive implementation of the RISC-V Platform Level
Interrupt Controller (PLIC).  The PLIC connects global interrupt sources
to the local interrupt controller on each hart.

This driver is based on the driver in the RISC-V tree from Palmer Dabbelt,
but has been almost entirely rewritten since, and includes many fixes
from Atish Patra.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Atish Patra <atish.patra@wdc.com>
[Binding update by Palmer]
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
2018-08-13 08:31:32 -07:00
Palmer Dabbelt 24a130ccfe
RISC-V: Add CONFIG_HVC_RISCV_SBI=y to defconfig
The SBI exists on all RISC-V systems, so there's no reason not to
compile this driver in.

Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
2018-06-11 09:16:24 -07:00
Zong Li 4a632cec88
RISC-V: Enable module support in defconfig
Signed-off-by: Zong Li <zong@andestech.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
2018-04-02 20:00:56 -07:00
Karsten Merker 33c57c0d3c
RISC-V: Add a basic defconfig
This patch provides a basic defconfig for the RISC-V
architecture that enables enough kernel features to run a
basic Linux distribution on qemu's "virt" board for native
software development. Features include:

- serial console
- virtio block and network device support
- VFAT and ext2/3/4 filesystem support
- NFS client and NFS rootfs support
- an assortment of other kernel features required for
  running systemd

It also enables a number of drivers for physical hardware
that target the "SiFive U500" SoC and the corresponding
development platform.  These include:

- PCIe host controller support for the FPGA-based U500
  development platform (PCIE_XILINX)
- USB host controller support (OHCI/EHCI/XHCI)
- USB HID (keyboard/mouse) support
- USB mass storage support (bulk and UAS)
- SATA support (AHCI)
- ethernet drivers (MACB for a SoC-internal MAC block, microsemi
  ethernet phy, E1000E and R8169 for PCIe-connected external devices)
- DRM and framebuffer console support for PCIe-connected
  Radeon graphics chips

Signed-off-by: Karsten Merker <merker@debian.org>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
2018-01-07 15:14:36 -08:00
Palmer Dabbelt fbe934d69e RISC-V: Build Infrastructure
This patch contains all the build infrastructure that actually enables
the RISC-V port.  This includes Makefiles, linker scripts, and Kconfig
files.  It also contains the only top-level change, which adds RISC-V to
the list of architectures that need a sed run to produce the ARCH
variable when building locally.

Signed-off-by: Palmer Dabbelt <palmer@dabbelt.com>
2017-09-26 15:26:49 -07:00