diff options
| author | Tony Lindgren <tony@atomide.com> | 2017-07-16 22:10:14 -0700 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2017-07-17 00:53:42 -0700 |
| commit | 51ef70037ebc2f63739c518ef357b364a802b648 (patch) | |
| tree | 0372fd784b525be2ce91d8d2c0e75a19420d5457 | |
| parent | 2d1f7d2e2492ef7b2c0aa8d7a7822316d3a52c21 (diff) | |
ARM: debug: Use generic 8250 debug_ll for am3517 and am335x
We want to use generic 8250 debug_ll code to get DEBUG_UNCOMPRESS
working and to simplify the code. The old debug_ll code is no longer
needed and the machine ID based detection is no longer used.
Note that for most part there's no need to keep DEBUG_LL enabled.
We now have CONFIG_SERIAL_EARLYCON working very early as long as
the kernel cmdline has "earlycon" in it and the board specific dts
file has chosen configured with with the port using stdout-path.
Cc: Hoeun Ryu <hoeun.ryu@gmail.com>
Cc: Russell King <linux@armlinux.org.uk>
Signed-off-by: Tony Lindgren <tony@atomide.com>
| -rw-r--r-- | arch/arm/Kconfig.debug | 4 | ||||
| -rw-r--r-- | arch/arm/include/debug/omap2plus.S | 25 |
2 files changed, 3 insertions, 26 deletions
diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug index 4bfc2c20b3ba..b207ad2c9e52 100644 --- a/arch/arm/Kconfig.debug +++ b/arch/arm/Kconfig.debug @@ -727,7 +727,7 @@ choice config DEBUG_AM33XXUART1 bool "Kernel low-level debugging messages via AM33XX UART1" depends on ARCH_OMAP2PLUS - select DEBUG_OMAP2PLUS_UART + select DEBUG_UART_8250 config DEBUG_ZOOM_UART bool "Kernel low-level debugging messages via Zoom2/3 UART" @@ -1523,6 +1523,7 @@ config DEBUG_UART_PHYS default 0x40090000 if DEBUG_LPC32XX default 0x40100000 if DEBUG_PXA_UART1 default 0x42000000 if DEBUG_GEMINI + default 0x44e09000 if DEBUG_AM33XXUART1 default 0x48020000 if DEBUG_OMAP4UART3 || DEBUG_TI81XXUART1 default 0x48022000 if DEBUG_TI81XXUART2 default 0x48024000 if DEBUG_TI81XXUART3 @@ -1651,6 +1652,7 @@ config DEBUG_UART_VIRT default 0xf8090000 if DEBUG_VEXPRESS_UART0_RS1 default 0xf8ffee00 if DEBUG_AT91_SAM9263_DBGU default 0xf8fff200 if DEBUG_AT91_RM9200_DBGU + default 0xf9e09000 if DEBUG_AM33XXUART1 default 0xfa020000 if DEBUG_OMAP4UART3 || DEBUG_TI81XXUART1 default 0xfa022000 if DEBUG_TI81XXUART2 default 0xfa024000 if DEBUG_TI81XXUART3 diff --git a/arch/arm/include/debug/omap2plus.S b/arch/arm/include/debug/omap2plus.S index 3098314361fb..8be08d907a16 100644 --- a/arch/arm/include/debug/omap2plus.S +++ b/arch/arm/include/debug/omap2plus.S @@ -12,15 +12,6 @@ #include <linux/serial_reg.h> -/* OMAP3 serial ports */ -#define OMAP3_UART4_AM35XX_BASE 0x4809E000 /* Only on AM35xx */ - -/* AM3505/3517 UART4 */ -#define AM35XX_UART4_BASE 0x4809E000 /* Only on AM3505/3517 */ - -/* AM33XX serial port */ -#define AM33XX_UART1_BASE 0x44E09000 - /* External port on Zoom2/3 */ #define ZOOM_UART_BASE 0x10000000 #define ZOOM_UART_VIRT 0xfa400000 @@ -51,11 +42,6 @@ omap_uart_lsr: .word 0 bne 100f @ already configured /* Configure the UART offset from the phys/virt base */ -#ifdef CONFIG_DEBUG_AM33XXUART1 - ldr \rp, =AM33XX_UART1_BASE - and \rp, \rp, #0x00ffffff - b 97f -#endif #ifdef CONFIG_DEBUG_ZOOM_UART ldr \rp, =ZOOM_UART_BASE str \rp, [\tmp, #0] @ omap_uart_phys @@ -66,17 +52,6 @@ omap_uart_lsr: .word 0 #endif b 10b - /* AM33XX: Store both phys and virt address for the uart */ -97: add \rp, \rp, #0x44000000 @ phys base - str \rp, [\tmp, #0] @ omap_uart_phys - sub \rp, \rp, #0x44000000 @ phys base - add \rp, \rp, #0xf9000000 @ virt base - str \rp, [\tmp, #4] @ omap_uart_virt - mov \rp, #(UART_LSR << OMAP_PORT_SHIFT) - str \rp, [\tmp, #8] @ omap_uart_lsr - - b 10b - .align 99: .word . .word omap_uart_phys |