ukui/kernel
0
0
Fork 0
mirror of https://github.com/ukui/kernel.git synced 2026-03-09 10:07:04 -07:00
Code Issues Packages Projects Releases Wiki Activity

ARM: debug: Use generic 8250 debug_ll for ti81xx

Browse Source 
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
2017-07-16 22:10:14 -07:00
parent fc23beb8a5
commit 2d1f7d2e24
2 changed files with 9 additions and 33 deletions
Download Patch File Download Diff File Expand all files Collapse all files

28
arch/arm/include/debug/omap2plus.S
View File

@@ -15,11 +15,6 @@
/* OMAP3 serial ports */
#define OMAP3_UART4_AM35XX_BASE 0x4809E000 /* Only on AM35xx */
/* TI81XX serial ports */
#define TI81XX_UART1_BASE 0x48020000
#define TI81XX_UART2_BASE 0x48022000
#define TI81XX_UART3_BASE 0x48024000
/* AM3505/3517 UART4 */
#define AM35XX_UART4_BASE 0x4809E000 /* Only on AM3505/3517 */
@@ -56,18 +51,6 @@ omap_uart_lsr: .word 0
bne 100f @ already configured
/* Configure the UART offset from the phys/virt base */
#ifdef CONFIG_DEBUG_TI81XXUART1
mov \rp, #UART_OFFSET(TI81XX_UART1_BASE)
b 98f
#endif
#ifdef CONFIG_DEBUG_TI81XXUART2
mov \rp, #UART_OFFSET(TI81XX_UART2_BASE)
b 98f
#endif
#ifdef CONFIG_DEBUG_TI81XXUART3
mov \rp, #UART_OFFSET(TI81XX_UART3_BASE)
b 98f
#endif
#ifdef CONFIG_DEBUG_AM33XXUART1
ldr \rp, =AM33XX_UART1_BASE
and \rp, \rp, #0x00ffffff
@@ -94,17 +77,6 @@ omap_uart_lsr: .word 0
b 10b
/* Store both phys and virt address for the uart */
98: add \rp, \rp, #0x48000000 @ phys base
str \rp, [\tmp, #0] @ omap_uart_phys
sub \rp, \rp, #0x48000000 @ phys base
add \rp, \rp, #0xfa000000 @ 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