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ARM: 8271/1: omap1: Migrate debug_ll macros to use 8250.S

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The omap1's debug-macro.S is similar to the generic 8250 code. Compared to
the 8520 code the omap1 macro automatically determines what UART to use
based on breadcrumbs left by the bootloader and automatically copes with
the eccentric register layout on OMAP7XX.

This patch drops both these features and relies instead on the generic
8250 macros:

1. Dropping support for the bootloader breadcrumbs is identical to the
   way the migration was handled for OMAP2 (see 808b7e07464d...).

2. Support for OMAP7XX still exists but it must be configured by hand
   (DEBUG_OMAP7XXUART1/2/3) rather than handled at runtime.

Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Cc: Arnd Bergmann <arnd.bergmann@linaro.org>
Cc: linux-omap@vger.kernel.org
Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Daniel Thompson
2015-01-09 18:33:50 +01:00
committed by Russell King
parent abbfb21efc
commit c26b999353
2 changed files with 56 additions and 102 deletions
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57
arch/arm/Kconfig.debug
View File

@@ -527,6 +527,30 @@ choice
Say Y here if you want kernel low-level debugging support
on TI-NSPIRE CX models.
config DEBUG_OMAP1UART1
bool "Kernel low-level debugging via OMAP1 UART1"
depends on ARCH_OMAP1
select DEBUG_UART_8250
help
Say Y here if you want kernel low-level debugging support
on OMAP1 based platforms (except OMAP730) on the UART1.
config DEBUG_OMAP1UART2
bool "Kernel low-level debugging via OMAP1 UART2"
depends on ARCH_OMAP1
select DEBUG_UART_8250
help
Say Y here if you want kernel low-level debugging support
on OMAP1 based platforms (except OMAP730) on the UART2.
config DEBUG_OMAP1UART3
bool "Kernel low-level debugging via OMAP1 UART3"
depends on ARCH_OMAP1
select DEBUG_UART_8250
help
Say Y here if you want kernel low-level debugging support
on OMAP1 based platforms (except OMAP730) on the UART3.
config DEBUG_OMAP2UART1
bool "OMAP2/3/4 UART1 (omap2/3 sdp boards and some omap3 boards)"
depends on ARCH_OMAP2PLUS
@@ -569,6 +593,30 @@ choice
depends on ARCH_OMAP2PLUS
select DEBUG_OMAP2PLUS_UART
config DEBUG_OMAP7XXUART1
bool "Kernel low-level debugging via OMAP730 UART1"
depends on ARCH_OMAP730
select DEBUG_UART_8250
help
Say Y here if you want kernel low-level debugging support
on OMAP730 based platforms on the UART1.
config DEBUG_OMAP7XXUART2
bool "Kernel low-level debugging via OMAP730 UART2"
depends on ARCH_OMAP730
select DEBUG_UART_8250
help
Say Y here if you want kernel low-level debugging support
on OMAP730 based platforms on the UART2.
config DEBUG_OMAP7XXUART3
bool "Kernel low-level debugging via OMAP730 UART3"
depends on ARCH_OMAP730
select DEBUG_UART_8250
help
Say Y here if you want kernel low-level debugging support
on OMAP730 based platforms on the UART3.
config DEBUG_TI81XXUART1
bool "Kernel low-level debugging messages via TI81XX UART1 (ti8148evm)"
depends on ARCH_OMAP2PLUS
@@ -1308,6 +1356,9 @@ config DEBUG_UART_PHYS
default 0xffe40000 if DEBUG_RCAR_GEN1_SCIF0
default 0xffe42000 if DEBUG_RCAR_GEN1_SCIF2
default 0xfff36000 if DEBUG_HIGHBANK_UART
default 0xfffb0000 if DEBUG_OMAP1UART1 || DEBUG_OMAP7XXUART1
default 0xfffb0800 if DEBUG_OMAP1UART2 || DEBUG_OMAP7XXUART2
default 0xfffb9800 if DEBUG_OMAP1UART3 || DEBUG_OMAP7XXUART3
default 0xfffe8600 if DEBUG_UART_BCM63XX
default 0xfffff700 if ARCH_IOP33X
depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
@@ -1390,6 +1441,9 @@ config DEBUG_UART_VIRT
default 0xfef00000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN
default 0xfef00003 if ARCH_IXP4XX && CPU_BIG_ENDIAN
default 0xfef36000 if DEBUG_HIGHBANK_UART
default 0xfefb0000 if DEBUG_OMAP1UART1 || DEBUG_OMAP7XXUART1
default 0xfefb0800 if DEBUG_OMAP1UART2 || DEBUG_OMAP7XXUART2
default 0xfefb9800 if DEBUG_OMAP1UART3 || DEBUG_OMAP7XXUART3
default 0xfefff700 if ARCH_IOP33X
default 0xff003000 if DEBUG_U300_UART
default DEBUG_UART_PHYS if !MMU
@@ -1401,7 +1455,8 @@ config DEBUG_UART_VIRT
config DEBUG_UART_8250_SHIFT
int "Register offset shift for the 8250 debug UART"
depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250
default 0 if FOOTBRIDGE || ARCH_IOP32X || DEBUG_BCM_5301X
default 0 if FOOTBRIDGE || ARCH_IOP32X || DEBUG_BCM_5301X || \
DEBUG_OMAP7XXUART1 || DEBUG_OMAP7XXUART2 || DEBUG_OMAP7XXUART3
default 2
config DEBUG_UART_8250_WORD