ARM: debug: Use generic 8250 debug_ll for omap3/4/5

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>
This commit is contained in:
Tony Lindgren 2017-06-14 00:31:13 -07:00
parent d2b310b023
commit fc23beb8a5
2 changed files with 12 additions and 38 deletions

View File

@ -664,7 +664,7 @@ choice
config DEBUG_OMAP3UART3
bool "Kernel low-level debugging messages via OMAP3 UART3 (most omap3 boards)"
depends on ARCH_OMAP2PLUS
select DEBUG_OMAP2PLUS_UART
select DEBUG_UART_8250
help
This covers at least cm_t3x, beagle, crane, devkit8000,
igep00x0, ldp, n900, n9(50), pandora, overo, touchbook,
@ -673,17 +673,17 @@ choice
config DEBUG_OMAP4UART3
bool "Kernel low-level debugging messages via OMAP4/5 UART3 (omap4 blaze, panda, omap5 sevm)"
depends on ARCH_OMAP2PLUS
select DEBUG_OMAP2PLUS_UART
select DEBUG_UART_8250
config DEBUG_OMAP3UART4
bool "Kernel low-level debugging messages via OMAP36XX UART4"
depends on ARCH_OMAP2PLUS
select DEBUG_OMAP2PLUS_UART
select DEBUG_UART_8250
config DEBUG_OMAP4UART4
bool "Kernel low-level debugging messages via OMAP4/5 UART4"
depends on ARCH_OMAP2PLUS
select DEBUG_OMAP2PLUS_UART
select DEBUG_UART_8250
config DEBUG_OMAP7XXUART1
bool "Kernel low-level debugging via OMAP730 UART1"
@ -1523,11 +1523,14 @@ config DEBUG_UART_PHYS
default 0x40090000 if DEBUG_LPC32XX
default 0x40100000 if DEBUG_PXA_UART1
default 0x42000000 if DEBUG_GEMINI
default 0x48020000 if DEBUG_OMAP4UART3
default 0x4806a000 if DEBUG_OMAP2UART1 || DEBUG_OMAP3UART1 || \
DEBUG_OMAP4UART1 || DEBUG_OMAP5UART1
default 0x4806c000 if DEBUG_OMAP2UART2 || DEBUG_OMAP3UART2 || \
DEBUG_OMAP4UART2 || DEBUG_OMAP5UART2
default 0x4806e000 if DEBUG_OMAP2UART3
default 0x4806e000 if DEBUG_OMAP2UART3 || DEBUG_OMAP4UART4
default 0x49020000 if DEBUG_OMAP3UART3
default 0x49042000 if DEBUG_OMAP3UART4
default 0x50000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
DEBUG_S3C2410_UART0)
default 0x50004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
@ -1646,15 +1649,18 @@ 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 0xfa020000 if DEBUG_OMAP4UART3
default 0xfa06a000 if DEBUG_OMAP2UART1 || DEBUG_OMAP3UART1 || \
DEBUG_OMAP4UART1 || DEBUG_OMAP5UART1
default 0xfa06c000 if DEBUG_OMAP2UART2 || DEBUG_OMAP3UART2 || \
DEBUG_OMAP4UART2 || DEBUG_OMAP5UART2
default 0xfa06e000 if DEBUG_OMAP2UART3
default 0xfa06e000 if DEBUG_OMAP2UART3 || DEBUG_OMAP4UART4
default 0xfa71e000 if DEBUG_QCOM_UARTDM
default 0xfb002000 if DEBUG_CNS3XXX
default 0xfb009000 if DEBUG_REALVIEW_STD_PORT
default 0xfb00c000 if DEBUG_AT91_SAMA5D4_USART3
default 0xfb020000 if DEBUG_OMAP3UART3
default 0xfb042000 if DEBUG_OMAP3UART4
default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT
default 0xfc705000 if DEBUG_ZTE_ZX
default 0xfcfe8600 if DEBUG_BCM63XX_UART

View File

@ -13,14 +13,8 @@
#include <linux/serial_reg.h>
/* OMAP3 serial ports */
#define OMAP3_UART3_BASE 0x49020000
#define OMAP3_UART4_BASE 0x49042000 /* Only on 36xx */
#define OMAP3_UART4_AM35XX_BASE 0x4809E000 /* Only on AM35xx */
/* OMAP4 serial ports */
#define OMAP4_UART3_BASE 0x48020000
#define OMAP4_UART4_BASE 0x4806e000
/* TI81XX serial ports */
#define TI81XX_UART1_BASE 0x48020000
#define TI81XX_UART2_BASE 0x48022000
@ -32,12 +26,6 @@
/* AM33XX serial port */
#define AM33XX_UART1_BASE 0x44E09000
/* OMAP5 serial ports */
#define OMAP5_UART3_BASE OMAP4_UART3_BASE
#define OMAP5_UART4_BASE OMAP4_UART4_BASE
#define OMAP5_UART5_BASE 0x48066000
#define OMAP5_UART6_BASE 0x48068000
/* External port on Zoom2/3 */
#define ZOOM_UART_BASE 0x10000000
#define ZOOM_UART_VIRT 0xfa400000
@ -68,26 +56,6 @@ omap_uart_lsr: .word 0
bne 100f @ already configured
/* Configure the UART offset from the phys/virt base */
#ifdef CONFIG_DEBUG_OMAP3UART3
mov \rp, #UART_OFFSET(OMAP3_UART1_BASE)
add \rp, \rp, #0x00fb0000
add \rp, \rp, #0x00006000 @ OMAP3_UART3_BASE
b 98f
#endif
#ifdef CONFIG_DEBUG_OMAP4UART3
mov \rp, #UART_OFFSET(OMAP4_UART3_BASE)
b 98f
#endif
#ifdef CONFIG_DEBUG_OMAP3UART4
mov \rp, #UART_OFFSET(OMAP3_UART1_BASE)
add \rp, \rp, #0x00fb0000
add \rp, \rp, #0x00028000 @ OMAP3_UART4_BASE
b 98f
#endif
#ifdef CONFIG_DEBUG_OMAP4UART4
mov \rp, #UART_OFFSET(OMAP4_UART4_BASE)
b 98f
#endif
#ifdef CONFIG_DEBUG_TI81XXUART1
mov \rp, #UART_OFFSET(TI81XX_UART1_BASE)
b 98f