Commit Graph

16 Commits

Author SHA1 Message Date
Alistair Francis
d6ddfdce39 Makefile: Use generic flags for the firmware
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2019-01-04 08:20:50 +05:30
Anup Patel
5797ae2035 include: Remove redundant tmp0 from struct sbi_scratch
The tmp0 member was added in struct sbi_scratch to assist
register save/restore at time of trap handling. This tmp0
is not unsed any more hence removing it.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
2019-01-02 18:06:14 -08:00
Anup Patel
dc7be34d52 include: Move RISCV_TRAP_REGS_xyz defines to sbi_trap.h
The struct sbi_trap_regs related defines RISCV_TRAP_REGS_xyz should
be in sbi_trap.h so that we can keep these defines in-sync with changes
in struct sbi_trap_regs.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
2019-01-02 09:57:12 +05:30
Anup Patel
5ed3cf3707 include: Move RISCV_PLATFORM_xyz defines to sbi_platform.h
The struct sbi_platform related defines RISCV_PLATFORM_xyz should
be in sbi_platform.h so that we can keep these defines in-sync
with changes in struct sbi_platform.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
2019-01-02 09:57:12 +05:30
Anup Patel
e0d6914b3c include: Move RISCV_SCRATCH_xyz defines to sbi_scratch.h
The struct sbi_scratch related defines RISCV_SCRATCH_xyz should
be in sbi_scratch.h so that we can keep these defines in-sync
with changes in struct sbi_scratch.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
2019-01-02 09:57:12 +05:30
Anup Patel
cfa3fba14f firmware: Rename fw_common.S to fw_base.S
The fw_common.S is the base firmware extendend by fw_jump and
fw_payload. This patch renames fw_common.S to fw_base.S to
have more clear/intutive name for base firmware.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
2018-12-27 09:30:12 +05:30
Anup Patel
2d90226e04 firmware: Use dummy payload for FW_PAYLOAD
We use recently added separate dummy payload for FW_PAYLOAD
when FW_PAYLOAD_PATH is not specified.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
2018-12-27 09:29:29 +05:30
Anup Patel
bb3665d0f0 firmware: Add separate dummy payload for FW_PAYLOAD
Currently, the default payload for FW_PAYLOAD is embedded
fw_payload.S itself. This means people have to hack fw_payload.S
if they want to have some temporary S-mode test code.

This patch adds a separate dummy payload for FW_PAYLOAD which
can be easily hacked for some S-mode testing.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
2018-12-27 09:29:29 +05:30
Anup Patel
58ca525a7d firmware: Don't depend on PLAT_HART_COUNT and PLAT_HART_STACK_SIZE
The hart_count and hart_stack_size information is already available
in "struct sbi_platform" so we use that instead of depending on
PLAT_HART_COUNT and PLAT_HART_STACK_SIZE.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
2018-12-22 20:49:52 +05:30
Anup Patel
1cf7ec9e3b firmware: Remove stack section from common linker script
We don't need a separate stack section for per-HART stack
instead we create per-HART stack at the end of firmware
(i.e. after _fw_end symbol).

Signed-off-by: Anup Patel <anup.patel@wdc.com>
2018-12-22 20:49:52 +05:30
Anup Patel
ef5f4e149c firmware: Remove redundant write to mideleg and medeleg
The mideleg and medeleg are already programmed in delegate_traps()
so no need to set it here.

Any CSR setup in our reference firmware becomes a requirement
for bootloader linking to libsbi.a so we should have minimum
possible CSR setup in our reference firmware.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
2018-12-21 15:05:59 +05:30
Anup Patel
4e15d79419 Revert "Fix FDT relocation"
This patch reverts "Fix FDT relocation" because it breaks
fw_jump firmware.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
2018-12-21 15:04:21 +05:30
Damien Le Moal
4fb23c49eb Fiw comment typo
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
2018-12-21 16:35:33 +09:00
Damien Le Moal
8f91d1142e fw: Disable delegation
Also disable interrupts and exceptions delegation when clearing mie and
mip.

Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
2018-12-21 15:09:13 +09:00
Damien Le Moal
513474cd1b Fix FDT relocation
Or rather, disable it if FW_PAYLOAD_FDT_ADDR is not defined. This
correspond to cases where the underlying FW that loaded and started
opensbi did not provide any FDT. In such case, the platform code will
need to prepare one.

Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
2018-12-21 15:09:13 +09:00
Anup Patel
b023176c17 top: Rename "blob" to "firmware" everywhere
This patch renames "blob" to "firmware" everywhere for better
and intutive naming.

Signed-off-by: Anup Patel <anup@brainfault.org>
2018-12-21 09:52:27 +05:30