The Andes PLMT driver directly accesses the mtime MMIO region,
indicating its intended use in the M-mode boot stage. However,
since U-Boot proper (S-mode) also uses the PLMT driver, we need
to specifically mark the region as readable through PMPCFGx (or
S/U-mode read-only shared data region for Smepmp) in OpenSBI.
Granting permission for this case doesn't make sense. Instead,
we should use the generic RISC-V timer driver to read the mtime
through the TIME CSR. Therefore, we add the SPL_ANDES_PLMT_TIMER
config, which ensures that the PLMT driver is linked exclusively
against M-mode U-Boot or U-Boot SPL binaries.
Signed-off-by: Yu Chien Peter Lin <peterlin@andestech.com>
Reviewed-by: Samuel Holland <samuel@sholland.org>
Most boards don't enable the pre-console buffer. So we will not see any
early messages. OpenSBI 1.3 provides us with the debug console extension
that can fill this gap.
For S-Mode U-Boot enable CONFIG_DEBUG_UART by default.
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
A 16 bit aligned instruction should generated an exception if the C
extension is not available.
Provide an 'extension ialign16' command for testing exception handling.
For testing build qemu-riscv64_defconfig with CONFIG_RISCV_ISA_C=n
and run with
qemu-system-riscv64 -M virt -bios u-boot -nographic -cpu rv64,c=false
=> exception ialign16
Unhandled exception: Instruction address misaligned
EPC: 0000000087719138 RA: 0000000087719218 TVAL: 000000008771913e
EPC: 0000000080020138 RA: 0000000080020218 reloc adjusted
Code: 0113 0101 8067 0000 0113 ff01 3423 0011 (006f 0060)
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
Eliminating the C extension on application processors is under
discussion.
Support emitting a compressed instruction. This will lead to an
illegal instruction exception if the C extension is not implemented.
For testing build qemu-riscv64_defconfig with CONFIG_RISCV_ISA_C=n
and run with
qemu-system-riscv64 -M virt -bios u-boot -nographic -cpu rv64,c=false
=> exception compressed
Unhandled exception: Illegal instruction
EPC: 0000000087731708 RA: 000000008773fe44 TVAL: 0000000000004501
EPC: 000000008001b708 RA: 0000000080029e44 reloc adjusted
Code: 0b93 0000 0493 0000 0993 0000 f06f ccdf (4501)
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
Add timer driver in Starfive SoC. It is an timer that outside
of CPU core and inside Starfive SoC.
Signed-off-by: Kuan Lim Lee <kuanlim.lee@starfivetech.com>
Reviewed-by: Wei Liang Lim <weiliang.lim@starfivetech.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
timer_get_boot_us function is required to record the boot stages as
us-based timestamp.
To get a micro-second time from a timer tick, this converts the
formula like below to avoid zero result of (tick / rate) part.
From: time(us) = (tick / rate) * 1000000
To : time(us) = (tick * 1000) / (rate / 1000)
Signed-off-by: Chanho Park <chanho61.park@samsung.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
timer_get_boot_us function is required to record the boot stages as
us-based timestamp.
To get a micro-second time from a timer tick, this converts the
formula like below to avoid zero result of (tick / rate) part.
From: time(us) = (tick / rate) * 1000000
To : time(us) = (tick * 1000) / (rate / 1000)
Signed-off-by: Chanho Park <chanho61.park@samsung.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
Below warning can be occurred when CONFIG_BOOTSTAGE and
!CONFIG_SPL_BOOTSTAGE. It should be guarded by using CONFIG_IS_ENABLED
for SPL build.
arch/riscv/lib/bootm.c:46:9: warning: implicit declaration of
function 'bootstage_report'
46 | bootstage_report();
| ^~~~~~~~~~~~~~~~
| bootstage_error
Signed-off-by: Chanho Park <chanho61.park@samsung.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
Set U-Boot environment storage eMMC device number to 0, to match
the new additions to DT /aliases node pulled in alongside Linux
6.5.3 DT synchronization.
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Synchronize RZ R8A774E1 RZ/G2H DTs with Linux 6.5.3,
commit 238589d0f7b421aae18c5704dc931595019fa6c7 .
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Synchronize RZ R8A774C0 RZ/G2E DTs with Linux 6.5.3,
commit 238589d0f7b421aae18c5704dc931595019fa6c7 .
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Synchronize RZ R8A774B1 RZ/G2N DTs with Linux 6.5.3,
commit 238589d0f7b421aae18c5704dc931595019fa6c7 .
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Synchronize RZ R8A774A1 RZ/G2M DTs with Linux 6.5.3,
commit 238589d0f7b421aae18c5704dc931595019fa6c7 .
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Reviewed-by: Adam Ford <aford173@gmail.com>
Synchronize RZ R7S72100 RZ/A1 DTs with Linux 6.5.3,
commit 238589d0f7b421aae18c5704dc931595019fa6c7 .
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Synchronize R-Car R8A779G0 V4H DTs with Linux 6.5.3,
commit 238589d0f7b421aae18c5704dc931595019fa6c7 .
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Synchronize R-Car R8A779F0 S4 DTs with Linux 6.5.3,
commit 238589d0f7b421aae18c5704dc931595019fa6c7 .
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Synchronize R-Car R8A779A0 E3 DTs with Linux 6.5.3,
commit 238589d0f7b421aae18c5704dc931595019fa6c7 .
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Synchronize R-Car R8A77995 D3 DTs with Linux 6.5.3,
commit 238589d0f7b421aae18c5704dc931595019fa6c7 .
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Synchronize R-Car R8A77990 E3 DTs with Linux 6.5.3,
commit 238589d0f7b421aae18c5704dc931595019fa6c7 .
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Synchronize R-Car R8A77980 V3H DTs with Linux 6.5.3,
commit 238589d0f7b421aae18c5704dc931595019fa6c7 .
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Synchronize R-Car R8A77970 V3M DTs with Linux 6.5.3,
commit 238589d0f7b421aae18c5704dc931595019fa6c7 .
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Synchronize R-Car R8A77965 M3-N DTs with Linux 6.5.3,
commit 238589d0f7b421aae18c5704dc931595019fa6c7 .
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Synchronize R-Car R8A77960 M3-W and R8A77961 M3-W+ DTs with Linux 6.5.3,
commit 238589d0f7b421aae18c5704dc931595019fa6c7 .
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Synchronize R-Car R8A77951 H3 DTs with Linux 6.5.3,
commit 238589d0f7b421aae18c5704dc931595019fa6c7 .
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Synchronize R-Car R8A7794 E2 DTs with Linux 6.5.3,
commit 238589d0f7b421aae18c5704dc931595019fa6c7 .
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Synchronize R-Car R8A7791 M2-W and R8A7793 M2-N DTs with Linux 6.5.3,
commit 238589d0f7b421aae18c5704dc931595019fa6c7 .
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Synchronize R-Car R8A7790 H2 DTs with Linux 6.5.3,
commit 238589d0f7b421aae18c5704dc931595019fa6c7 .
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Synchronize R8A774E1 RZ/G2H clock tables with Linux 6.5.3,
commit 238589d0f7b421aae18c5704dc931595019fa6c7 .
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Synchronize R8A774C0 RZ/G2E clock tables with Linux 6.5.3,
commit 238589d0f7b421aae18c5704dc931595019fa6c7 .
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Synchronize R8A774B1 RZ/G2N clock tables with Linux 6.5.3,
commit 238589d0f7b421aae18c5704dc931595019fa6c7 .
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Synchronize R8A774A1 RZ/G2M clock tables with Linux 6.5.3,
commit 238589d0f7b421aae18c5704dc931595019fa6c7 .
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Synchronize R-Car R8A779G0 V4H clock tables with Linux 6.5.3,
commit 238589d0f7b421aae18c5704dc931595019fa6c7 .
The PLL2_VAR is not implemented yet and PLL2 is still configured
as regular PLL2 only.
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Synchronize R-Car R8A77960 M3-W and R8A77961 M3-W+ clock tables with Linux 6.5.3,
commit 238589d0f7b421aae18c5704dc931595019fa6c7 .
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
