History

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.

Tony Lindgren committed 9 years ago

Commit fc23beb1 parent d2b310b2 files · +12 −38Browse files

Unified · Split

2 files
  1. arch/arm/Kconfig.debug +12 −6
  2. arch/arm/include/debug/omap2plus.S +0 −32
arch/arm/Kconfig.debug+12−6
@@ -664,7 +664,7 @@ choice · 663 unmodified lines
664664 config DEBUG_OMAP3UART3
665665 bool "Kernel low-level debugging messages via OMAP3 UART3 (most omap3 boards)"
666666 depends on ARCH_OMAP2PLUS
667− select DEBUG_OMAP2PLUS_UART
667+ select DEBUG_UART_8250
668668 help
669669 This covers at least cm_t3x, beagle, crane, devkit8000,
670670 igep00x0, ldp, n900, n9(50), pandora, overo, touchbook,
@@ -673,17 +673,17 @@ choice · 2 unmodified lines
673673 config DEBUG_OMAP4UART3
674674 bool "Kernel low-level debugging messages via OMAP4/5 UART3 (omap4 blaze, panda, omap5 sevm)"
675675 depends on ARCH_OMAP2PLUS
676− select DEBUG_OMAP2PLUS_UART
676+ select DEBUG_UART_8250
677677
678678 config DEBUG_OMAP3UART4
679679 bool "Kernel low-level debugging messages via OMAP36XX UART4"
680680 depends on ARCH_OMAP2PLUS
681− select DEBUG_OMAP2PLUS_UART
681+ select DEBUG_UART_8250
682682
683683 config DEBUG_OMAP4UART4
684684 bool "Kernel low-level debugging messages via OMAP4/5 UART4"
685685 depends on ARCH_OMAP2PLUS
686− select DEBUG_OMAP2PLUS_UART
686+ select DEBUG_UART_8250
687687
688688 config DEBUG_OMAP7XXUART1
689689 bool "Kernel low-level debugging via OMAP730 UART1"
@@ -1523,11 +1523,14 @@ config DEBUG_UART_PHYS · 833 unmodified lines
15231523 default 0x40090000 if DEBUG_LPC32XX
15241524 default 0x40100000 if DEBUG_PXA_UART1
15251525 default 0x42000000 if DEBUG_GEMINI
1526+ default 0x48020000 if DEBUG_OMAP4UART3
15261527 default 0x4806a000 if DEBUG_OMAP2UART1 || DEBUG_OMAP3UART1 || \
15271528 DEBUG_OMAP4UART1 || DEBUG_OMAP5UART1
15281529 default 0x4806c000 if DEBUG_OMAP2UART2 || DEBUG_OMAP3UART2 || \
15291530 DEBUG_OMAP4UART2 || DEBUG_OMAP5UART2
1530− default 0x4806e000 if DEBUG_OMAP2UART3
1531+ default 0x4806e000 if DEBUG_OMAP2UART3 || DEBUG_OMAP4UART4
1532+ default 0x49020000 if DEBUG_OMAP3UART3
1533+ default 0x49042000 if DEBUG_OMAP3UART4
15311534 default 0x50000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \
15321535 DEBUG_S3C2410_UART0)
15331536 default 0x50004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \
@@ -1646,15 +1649,18 @@ config DEBUG_UART_VIRT · 112 unmodified lines
16461649 default 0xf8090000 if DEBUG_VEXPRESS_UART0_RS1
16471650 default 0xf8ffee00 if DEBUG_AT91_SAM9263_DBGU
16481651 default 0xf8fff200 if DEBUG_AT91_RM9200_DBGU
1652+ default 0xfa020000 if DEBUG_OMAP4UART3
16491653 default 0xfa06a000 if DEBUG_OMAP2UART1 || DEBUG_OMAP3UART1 || \
16501654 DEBUG_OMAP4UART1 || DEBUG_OMAP5UART1
16511655 default 0xfa06c000 if DEBUG_OMAP2UART2 || DEBUG_OMAP3UART2 || \
16521656 DEBUG_OMAP4UART2 || DEBUG_OMAP5UART2
1653− default 0xfa06e000 if DEBUG_OMAP2UART3
1657+ default 0xfa06e000 if DEBUG_OMAP2UART3 || DEBUG_OMAP4UART4
16541658 default 0xfa71e000 if DEBUG_QCOM_UARTDM
16551659 default 0xfb002000 if DEBUG_CNS3XXX
16561660 default 0xfb009000 if DEBUG_REALVIEW_STD_PORT
16571661 default 0xfb00c000 if DEBUG_AT91_SAMA5D4_USART3
1662+ default 0xfb020000 if DEBUG_OMAP3UART3
1663+ default 0xfb042000 if DEBUG_OMAP3UART4
16581664 default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT
16591665 default 0xfc705000 if DEBUG_ZTE_ZX
16601666 default 0xfcfe8600 if DEBUG_BCM63XX_UART
arch/arm/include/debug/omap2plus.S+0−32
@@ -13,14 +13,8 @@ · 12 unmodified lines
1313 #include <linux/serial_reg.h>
1414
1515 /* OMAP3 serial ports */
16−#define OMAP3_UART3_BASE 0x49020000
17−#define OMAP3_UART4_BASE 0x49042000 /* Only on 36xx */
1816 #define OMAP3_UART4_AM35XX_BASE 0x4809E000 /* Only on AM35xx */
1917
20−/* OMAP4 serial ports */
21−#define OMAP4_UART3_BASE 0x48020000
22−#define OMAP4_UART4_BASE 0x4806e000
23−
2418 /* TI81XX serial ports */
2519 #define TI81XX_UART1_BASE 0x48020000
2620 #define TI81XX_UART2_BASE 0x48022000
@@ -32,12 +26,6 @@ · 5 unmodified lines
3226 /* AM33XX serial port */
3327 #define AM33XX_UART1_BASE 0x44E09000
3428
35−/* OMAP5 serial ports */
36−#define OMAP5_UART3_BASE OMAP4_UART3_BASE
37−#define OMAP5_UART4_BASE OMAP4_UART4_BASE
38−#define OMAP5_UART5_BASE 0x48066000
39−#define OMAP5_UART6_BASE 0x48068000
40−
4129 /* External port on Zoom2/3 */
4230 #define ZOOM_UART_BASE 0x10000000
4331 #define ZOOM_UART_VIRT 0xfa400000
@@ -68,26 +56,6 @@ omap_uart_lsr: .word 0 · 24 unmodified lines
6856 bne 100f @ already configured
6957
7058 /* Configure the UART offset from the phys/virt base */
71−#ifdef CONFIG_DEBUG_OMAP3UART3
72− mov \rp, #UART_OFFSET(OMAP3_UART1_BASE)
73− add \rp, \rp, #0x00fb0000
74− add \rp, \rp, #0x00006000 @ OMAP3_UART3_BASE
75− b 98f
76−#endif
77−#ifdef CONFIG_DEBUG_OMAP4UART3
78− mov \rp, #UART_OFFSET(OMAP4_UART3_BASE)
79− b 98f
80−#endif
81−#ifdef CONFIG_DEBUG_OMAP3UART4
82− mov \rp, #UART_OFFSET(OMAP3_UART1_BASE)
83− add \rp, \rp, #0x00fb0000
84− add \rp, \rp, #0x00028000 @ OMAP3_UART4_BASE
85− b 98f
86−#endif
87−#ifdef CONFIG_DEBUG_OMAP4UART4
88− mov \rp, #UART_OFFSET(OMAP4_UART4_BASE)
89− b 98f
90−#endif
9159 #ifdef CONFIG_DEBUG_TI81XXUART1
9260 mov \rp, #UART_OFFSET(TI81XX_UART1_BASE)
9361 b 98f

Keyboard shortcuts

General

Show keyboard shortcuts
?
Focus the current search
/

Issues and pull requests

Open filters
f

Issues, pull requests and Inbox

Select next item
j↓
Select previous item
k↑
Open selected item
Enter
Dismiss filters or clear selection
Esc

Repository code

Go to file
t