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[PATCH] arm: Drop deprecated early printk platform options


  • To: <xen-devel@xxxxxxxxxxxxxxxxxxxx>
  • From: Michal Orzel <michal.orzel@xxxxxxx>
  • Date: Fri, 13 Sep 2024 08:15:29 +0200
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  • Cc: Michal Orzel <michal.orzel@xxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Bertrand Marquis <bertrand.marquis@xxxxxxx>, Volodymyr Babchuk <Volodymyr_Babchuk@xxxxxxxx>
  • Delivery-date: Fri, 13 Sep 2024 06:16:13 +0000
  • List-id: Xen developer discussion <xen-devel.lists.xenproject.org>

The predefined configurations for early printk have been deprecated for
a sufficient amount of time. Let's finally remove them.

Note:
In order not to loose these predefined configurations, I wrote a wiki
page: https://wiki.xenproject.org/wiki/Xen_on_ARM_Early_Printk

Signed-off-by: Michal Orzel <michal.orzel@xxxxxxx>
---
 docs/misc/arm/early-printk.txt |   4 -
 xen/arch/arm/Kconfig.debug     | 155 ++-------------------------------
 2 files changed, 9 insertions(+), 150 deletions(-)

diff --git a/docs/misc/arm/early-printk.txt b/docs/misc/arm/early-printk.txt
index bc2d65aa2ea3..e6b9124a38e3 100644
--- a/docs/misc/arm/early-printk.txt
+++ b/docs/misc/arm/early-printk.txt
@@ -35,8 +35,4 @@ Other options depends on the driver selected:
 
   - For all other uarts there are no additional options.
 
-As a convenience it is also possible to select from a list of
-predefined configurations available in the list of choice for "Early
-printk" for specific platform.
-
 By default early printk is disabled.
diff --git a/xen/arch/arm/Kconfig.debug b/xen/arch/arm/Kconfig.debug
index eec860e88e0b..2fa0acd2a3f1 100644
--- a/xen/arch/arm/Kconfig.debug
+++ b/xen/arch/arm/Kconfig.debug
@@ -13,177 +13,67 @@ choice
                Choose one of the UART drivers for early printk, then you'll
                have to specify the parameters, like the base address.
 
-               Deprecated: Alternatively, there are platform specific options
-               which will have default values for the various parameters. But
-               such option will soon be removed.
-
        config EARLY_UART_CHOICE_8250
                select EARLY_UART_8250
                bool "Early printk via 8250 UART"
                help
                        Say Y here if you wish the early printk to direct their
-                       output to a 8250 UART. You can use this option to
-                       provide the parameters for the 8250 UART rather than
-                       selecting one of the platform specific options below if
-                       you know the parameters for the port.
+                       output to a 8250 UART.
 
-                       This option is preferred over the platform specific
-                       options; the platform specific options are deprecated
-                       and will soon be removed.
        config EARLY_UART_CHOICE_CADENCE
                select EARLY_UART_CADENCE
                depends on ARM_64
                bool "Early printk via Cadence UART"
                help
                        Say Y here if you wish the early printk to direct their
-                       output to a Cadence UART. You can use this option to
-                       provide the parameters for the Cadence UART rather than
-                       selecting one of the platform specific options below if
-                       you know the parameters for the port.
+                       output to a Cadence UART.
 
-                       This option is preferred over the platform specific
-                       options; the platform specific options are deprecated
-                       and will soon be removed.
        config EARLY_UART_CHOICE_EXYNOS4210
                select EARLY_UART_EXYNOS4210
                depends on ARM_32
                bool "Early printk via Exynos4210 UART"
                help
                        Say Y here if you wish the early printk to direct their
-                       output to a Exynos 4210 UART. You can use this option to
-                       provide the parameters for the Exynos 4210 UART rather 
than
-                       selecting one of the platform specific options below if
-                       you know the parameters for the port.
+                       output to a Exynos 4210 UART.
 
-                       This option is preferred over the platform specific
-                       options; the platform specific options are deprecated
-                       and will soon be removed.
        config EARLY_UART_CHOICE_IMX_LPUART
                select EARLY_UART_IMX_LPUART
                depends on ARM_64
                bool "Early printk via i.MX LPUART"
                help
                        Say Y here if you wish the early printk to direct their
-                       output to a i.MX LPUART. You can use this option to
-                       provide the parameters for the i.MX LPUART rather than
-                       selecting one of the platform specific options below if
-                       you know the parameters for the port.
+                       output to a i.MX LPUART.
+
        config EARLY_UART_CHOICE_MESON
                select EARLY_UART_MESON
                depends on ARM_64
                bool "Early printk via MESON UART"
                help
                        Say Y here if you wish the early printk to direct their
-                       output to a MESON UART. You can use this option to
-                       provide the parameters for the MESON UART rather than
-                       selecting one of the platform specific options below if
-                       you know the parameters for the port.
+                       output to a MESON UART.
 
-                       This option is preferred over the platform specific
-                       options; the platform specific options are deprecated
-                       and will soon be removed.
        config EARLY_UART_CHOICE_MVEBU
                select EARLY_UART_MVEBU
                depends on ARM_64
                bool "Early printk via MVEBU UART"
                help
                        Say Y here if you wish the early printk to direct their
-                       output to a MVEBU UART. You can use this option to
-                       provide the parameters for the MVEBU UART rather than
-                       selecting one of the platform specific options below if
-                       you know the parameters for the port.
+                       output to a MVEBU UART.
 
-                       This option is preferred over the platform specific
-                       options; the platform specific options are deprecated
-                       and will soon be removed.
        config EARLY_UART_CHOICE_PL011
                select EARLY_UART_PL011
                bool "Early printk via PL011 UART"
                help
                        Say Y here if you wish the early printk to direct their
-                       output to a PL011 UART. You can use this option to
-                       provide the parameters for the PL011 UART rather than
-                       selecting one of the platform specific options below if
-                       you know the parameters for the port.
+                       output to a PL011 UART.
 
-                       This option is preferred over the platform specific
-                       options; the platform specific options are deprecated
-                       and will soon be removed.
        config EARLY_UART_CHOICE_SCIF
                select EARLY_UART_SCIF
                bool "Early printk via SCIF UART"
                help
                        Say Y here if you wish the early printk to direct their
-                       output to a SCIF UART. You can use this option to
-                       provide the parameters for the SCIF UART rather than
-                       selecting one of the platform specific options below if
-                       you know the parameters for the port.
+                       output to a SCIF UART.
 
-                       This option is preferred over the platform specific
-                       options; the platform specific options are deprecated
-                       and will soon be removed.
-
-       config EARLY_PRINTK_BRCM
-               bool "Early printk with 8250 on Broadcom 7445D0 boards with A15 
processors"
-               select EARLY_UART_8250
-       config EARLY_PRINTK_DRA7
-               bool "Early printk with 8250 on DRA7 platform"
-               select EARLY_UART_8250
-       config EARLY_PRINTK_EXYNOS5250
-               bool "Early printk with the second UART on Exynos5250"
-               select EARLY_UART_EXYNOS4210
-               depends on ARM_32
-       config EARLY_PRINTK_FASTMODEL
-               bool "Early printk with pl011 on ARM Fastmodel software 
emulators"
-               select EARLY_UART_PL011
-       config EARLY_PRINTK_HIKEY960
-               bool "Early printk with pl011 with Hikey 960"
-               select EARLY_UART_PL011
-       config EARLY_PRINTK_JUNO
-               bool "Early printk with pl011 on Juno platform"
-               select EARLY_UART_PL011
-       config EARLY_PRINTK_LAGER
-               bool "Early printk with SCIF0 on Renesas Lager board (R-Car H2 
processor)"
-               select EARLY_UART_SCIF
-       config EARLY_PRINTK_MIDWAY
-               bool "Early printk with pl011 on Calxeda Midway processors"
-               select EARLY_UART_PL011
-       config EARLY_PRINTK_MVEBU
-               bool "Early printk with MVEBU for Marvell Armada 3700 SoCs"
-               select EARLY_UART_MVEBU
-               depends on ARM_64
-       config EARLY_PRINTK_OMAP5432
-               bool "Early printk with UART3 on TI OMAP5432 processors"
-               select EARLY_UART_8250
-       config EARLY_PRINTK_RCAR3
-               bool "Early printk with SCIF2 on Renesas R-Car Gen3 processors"
-               select EARLY_UART_SCIF
-       config EARLY_PRINTK_SEATTLE
-               bool "Early printk with pl011 for AMD Seattle processor"
-               select EARLY_UART_PL011
-       config EARLY_PRINTK_SUN6I
-               bool "Early printk with 8250 on Allwinner A31 processors"
-               select EARLY_UART_8250
-       config EARLY_PRINTK_SUN7I
-               bool "Early printk with 8250 on Allwinner A20 processors"
-               select EARLY_UART_8250
-       config EARLY_PRINTK_THUNDERX
-               bool "Early printk with pl011 for Cavium ThunderX processor"
-               select EARLY_UART_PL011
-               depends on ARM_64
-       config EARLY_PRINTK_VEXPRESS
-               bool "Early printk with pl011 for versatile express"
-               select EARLY_UART_PL011
-       config EARLY_PRINTK_XGENE_MCDIVITT
-               bool "Early printk with 820 on Xgene mcdivitt platform"
-               select EARLY_UART_8250
-       config EARLY_PRINTK_XGENE_STORM
-               bool "Early printk with 820 on Xgene storm platform"
-               select EARLY_UART_8250
-       config EARLY_PRINTK_ZYNQMP
-               bool "Early printk with Cadence UART for Xilinx ZynqMP SoCs"
-               select EARLY_UART_CADENCE
-               depends on ARM_64
 endchoice
 
 
@@ -219,25 +109,6 @@ config EARLY_UART_BASE_ADDRESS
        depends on EARLY_PRINTK
        hex "Early printk, physical base address of debug UART"
        range 0x0 0xffffffff if ARM_32
-       default 0xF040AB00 if EARLY_PRINTK_BRCM
-       default 0x4806A000 if EARLY_PRINTK_DRA7
-       default 0x1c090000 if EARLY_PRINTK_FASTMODEL
-       default 0x12c20000 if EARLY_PRINTK_EXYNOS5250
-       default 0xfff32000 if EARLY_PRINTK_HIKEY960
-       default 0x7ff80000 if EARLY_PRINTK_JUNO
-       default 0xe6e60000 if EARLY_PRINTK_LAGER
-       default 0xfff36000 if EARLY_PRINTK_MIDWAY
-       default 0xd0012000 if EARLY_PRINTK_MVEBU
-       default 0x48020000 if EARLY_PRINTK_OMAP5432
-       default 0xe6e88000 if EARLY_PRINTK_RCAR3
-       default 0xe1010000 if EARLY_PRINTK_SEATTLE
-       default 0x01c28000 if EARLY_PRINTK_SUN6I
-       default 0x01c28000 if EARLY_PRINTK_SUN7I
-       default 0x87e024000000 if EARLY_PRINTK_THUNDERX
-       default 0x1c090000 if EARLY_PRINTK_VEXPRESS
-       default 0x1c021000 if EARLY_PRINTK_XGENE_MCDIVITT
-       default 0x1c020000 if EARLY_PRINTK_XGENE_STORM
-       default 0xff000000 if EARLY_PRINTK_ZYNQMP
 
 config EARLY_UART_PL011_BAUD_RATE
        depends on EARLY_UART_PL011
@@ -250,7 +121,6 @@ config EARLY_UART_PL011_BAUD_RATE
                not try to initialize the UART, so that bootloader or firmware
                settings can be used for maximum compatibility.
 
-       default 115200 if EARLY_PRINTK_FASTMODEL
        default 0
 
 config EARLY_UART_PL011_MMIO32
@@ -274,13 +144,6 @@ config EARLY_UART_8250_REG_SHIFT
 
                Default to 0.
 
-       default 2 if EARLY_PRINTK_BRCM
-       default 2 if EARLY_PRINTK_DRA7
-       default 2 if EARLY_PRINTK_OMAP5432
-       default 2 if EARLY_PRINTK_SUN6I
-       default 2 if EARLY_PRINTK_SUN7I
-       default 2 if EARLY_PRINTK_XGENE_MCDIVITT
-       default 2 if EARLY_PRINTK_XGENE_STORM
        default 0
 
 choice EARLY_UART_SCIF_VERSION
-- 
2.25.1




 


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