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This UART is used in the SiFive FU540 SoC, and will probably be used in
other SoCs in the future.
Change-Id: I915edf39666b7a5f9550e3b7e743e97fe3cacfd3
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Reviewed-on: https://review.coreboot.org/25768
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
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Build pl011 to support building vboot on arm platforms.
Change-Id: I1ddc372d558b380065ff944fccb0d84eb37d4213
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/25108
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: David Hendricks <david.hendricks@gmail.com>
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Build the UART drivers for the postcar stage.
TEST=Build and run on Galileo Gen2
Change-Id: I8bf51135ab7e62fa4bc3e8d45583f2feac56942f
Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com>
Reviewed-on: https://review.coreboot.org/15843
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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These files provide symbols needed by console and uart drivers. This
was not an issue in the past, as we were not setting up a C
environment this early in the boot process.
Change-Id: Ied5106ac30a68971c8330e8f8270ab060994a89d
Signed-off-by: Alexandru Gagniuc <alexandrux.gagniuc@intel.com>
Reviewed-on: https://review.coreboot.org/12869
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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It's been decided to only support ARM Trusted Firmware for
any EL3 monitor. That means any SoC that requires PSCI
needs to add its support for ATF otherwise multi-processor
bring up won't work.
Change-Id: Ic931dbf5eff8765f4964374910123a197148f0ff
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/11897
Tested-by: build bot (Jenkins)
Reviewed-by: Julius Werner <jwerner@chromium.org>
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To support x86 verstage one needs a working buffer for
vboot. That buffer resides in the cache-as-ram region
which persists across verstage and romstage. The current
assumption is that verstage brings cache-as-ram up
and romstage tears cache-as-ram down. The timestamp,
cbmem console, and the vboot work buffer are persistent
through in both romstage and verstage. The vboot
work buffer as well as the cbmem console are permanently
destroyed once cache-as-ram is torn down. The timestamp
region is migrated. When verstage is enabled the assumption
is that _start is the romstage entry point. It's currently
expected that the chipset provides the entry point to
romstage when verstage is employed. Also, the car_var_*()
APIs use direct access when in verstage since its expected
verstage does not tear down cache-as-ram. Lastly, supporting
files were added to verstage-y such that an x86 verstage
will build and link.
BUG=chrome-os-partner:44827
BRANCH=None
TEST=Built and booted glados using separate verstage.
Change-Id: I097aa0b92f3bb95275205a3fd8b21362c67b97aa
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/11822
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
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verstage previously lacked serial console support.
Add the necessary objects and macro checks to allow
verstage to include the serial console.
Change-Id: Ibe911ad347cac0b089f5bc0d4263956f44f3d116
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/10196
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Tested-by: build bot (Jenkins)
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secmon is referring to uart's default_baudrate() and
various coreboot version strings.
Change-Id: I40a8d1979146058409a814d94ea24de83ee4d634
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Reviewed-on: http://review.coreboot.org/10129
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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Change-Id: Id1685c0b28ec8e3ab972a671af6f2de6f321c645
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-on: http://review.coreboot.org/9805
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
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We have means to easily disable a specific console in romstage if
necessary, so this global option makes little sense.
The option was initially introduced as a work-around for build issues
around CACHE_AS_RAM, ROMCC and ARCH_ARMV7 dependencies for UARTs.
Change-Id: I797bdd11a48ddd813d3ee7ccef9a0c050f16f669
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/5607
Tested-by: build bot (Jenkins)
Reviewed-by: David Hendricks <dhendrix@chromium.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
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This driver is only a thin shell for uart8250mem and we could extend it
with further compatible PCI IDs from other vendors/brands.
Change-Id: Ic115b1baa0be0dbaa81e4a17a2e466019d3f4a67
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/5329
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
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Option DRIVERS_UART builds with support for UART hardware.
Option CONSOLE_SERIAL enables the console output for UART.
Those x86 boards that do not have serial port on SuperIO should select
NO_UART_ON_SUPERIO to disable 8250 UART for the default configuration.
Removes:
CONSOLE_SERIAL_UART
HAVE_UART_IO_MAPPED
HAVE_UART_MEMORY_MAPPED
Renames:
CONSOLE_SERIAL8250 -> DRIVERS_UART_8250IO
CONSOLE_SERIAL8250MEM -> DRIVERS_UART_8250MEM
Change-Id: Id3afa05f85c0d6849746886db8b6c2ed6c846b61
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/5311
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
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Existing code compiled serial communication and printk() for SMM
even when DEBUG_SMI was not selected.
Change-Id: Ic5e25cd7453cb2243f7ac592b093fba752a299f7
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/5142
Tested-by: build bot (Jenkins)
Reviewed-by: Vladimir Serbinenko <phcoder@gmail.com>
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Change-Id: Ic65ffaaa092330ed68d891e4a09a8b86cdc04a3a
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/5236
Tested-by: build bot (Jenkins)
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Currently this is only a minimal stub to get console on qemu-armv7.
Change-Id: I3f20b7f944bc7d0e5ace9d22198d4c16a3839d2c
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/5162
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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Divisor is a function of requested baudrate, platform-specific
reference clock and amount of oversampling done on the UART reference.
Calculate this parameter with divisor rounded to nearest integer.
When building without option_table or when there is no entry for
baud_rate, CONFIG_TTYS0_BAUD is used for default baudrate.
For OxPCIe use of 4 MHz for reference was arbitrary giving correct
divisor for 115200 but somewhat inaccurate for lower baudrates.
Actual hardware is 62500000 with 16 times oversampling.
FIXME: Field for baudrate in lb_tables is still incorrect.
Change-Id: I68539738469af780fadd3392263dd9b3d5964d2d
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/5229
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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