diff options
Diffstat (limited to 'arch/arm/mach-omap2/include/mach/debug-macro.S')
| -rw-r--r-- | arch/arm/mach-omap2/include/mach/debug-macro.S | 144 |
1 files changed, 0 insertions, 144 deletions
diff --git a/arch/arm/mach-omap2/include/mach/debug-macro.S b/arch/arm/mach-omap2/include/mach/debug-macro.S deleted file mode 100644 index 6a4d4136002..00000000000 --- a/arch/arm/mach-omap2/include/mach/debug-macro.S +++ /dev/null @@ -1,144 +0,0 @@ -/* arch/arm/mach-omap2/include/mach/debug-macro.S - * - * Debugging macro include header - * - * Copyright (C) 1994-1999 Russell King - * Moved from linux/arch/arm/kernel/debug.S by Ben Dooks - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * -*/ - -#include <linux/serial_reg.h> - -#include <asm/memory.h> - -#include <plat/serial.h> - -#define UART_OFFSET(addr) ((addr) & 0x00ffffff) - - .pushsection .data -omap_uart_phys: .word 0 -omap_uart_virt: .word 0 -omap_uart_lsr: .word 0 - .popsection - - /* - * Note that this code won't work if the bootloader passes - * a wrong machine ID number in r1. To debug, just hardcode - * the desired UART phys and virt addresses temporarily into - * the omap_uart_phys and omap_uart_virt above. - */ - .macro addruart, rp, rv - - /* Use omap_uart_phys/virt if already configured */ -10: mrc p15, 0, \rp, c1, c0 - tst \rp, #1 @ MMU enabled? - ldreq \rp, =__virt_to_phys(omap_uart_phys) @ MMU not enabled - ldrne \rp, =omap_uart_phys @ MMU enabled - add \rv, \rp, #4 @ omap_uart_virt - ldr \rp, [\rp, #0] - ldr \rv, [\rv, #0] - cmp \rp, #0 @ is port configured? - cmpne \rv, #0 - bne 99f @ already configured - - /* Check the debug UART configuration set in uncompress.h */ - mrc p15, 0, \rp, c1, c0 - tst \rp, #1 @ MMU enabled? - ldreq \rp, =OMAP_UART_INFO @ MMU not enabled - ldrne \rp, =__phys_to_virt(OMAP_UART_INFO) @ MMU enabled - ldr \rp, [\rp, #0] - - /* Select the UART to use based on the UART1 scratchpad value */ - cmp \rp, #0 @ no port configured? - beq 21f @ if none, try to use UART1 - cmp \rp, #OMAP2UART1 @ OMAP2/3/4UART1 - beq 21f @ configure OMAP2/3/4UART1 - cmp \rp, #OMAP2UART2 @ OMAP2/3/4UART2 - beq 22f @ configure OMAP2/3/4UART2 - cmp \rp, #OMAP2UART3 @ only on 24xx - beq 23f @ configure OMAP2UART3 - cmp \rp, #OMAP3UART3 @ only on 34xx - beq 33f @ configure OMAP3UART3 - cmp \rp, #OMAP4UART3 @ only on 44xx - beq 43f @ configure OMAP4UART3 - cmp \rp, #OMAP3UART4 @ only on 36xx - beq 34f @ configure OMAP3UART4 - cmp \rp, #OMAP4UART4 @ only on 44xx - beq 44f @ configure OMAP4UART4 - cmp \rp, #ZOOM_UART @ only on zoom2/3 - beq 95f @ configure ZOOM_UART - - /* Configure the UART offset from the phys/virt base */ -21: mov \rp, #UART_OFFSET(OMAP2_UART1_BASE) @ omap2/3/4 - b 98f -22: mov \rp, #UART_OFFSET(OMAP2_UART2_BASE) @ omap2/3/4 - b 98f -23: mov \rp, #UART_OFFSET(OMAP2_UART3_BASE) - b 98f -33: mov \rp, #UART_OFFSET(OMAP3_UART1_BASE) - add \rp, \rp, #0x00fb0000 - add \rp, \rp, #0x00006000 @ OMAP3_UART3_BASE - b 98f -34: mov \rp, #UART_OFFSET(OMAP3_UART1_BASE) - add \rp, \rp, #0x00fb0000 - add \rp, \rp, #0x00028000 @ OMAP3_UART4_BASE - b 98f -43: mov \rp, #UART_OFFSET(OMAP4_UART3_BASE) - b 98f -44: mov \rp, #UART_OFFSET(OMAP4_UART4_BASE) - b 98f -95: ldr \rp, =ZOOM_UART_BASE - mrc p15, 0, \rv, c1, c0 - tst \rv, #1 @ MMU enabled? - ldreq \rv, =__virt_to_phys(omap_uart_phys) @ MMU not enabled - ldrne \rv, =omap_uart_phys @ MMU enabled - str \rp, [\rv, #0] - ldr \rp, =ZOOM_UART_VIRT - add \rv, \rv, #4 @ omap_uart_virt - str \rp, [\rv, #0] - mov \rp, #(UART_LSR << ZOOM_PORT_SHIFT) - add \rv, \rv, #4 @ omap_uart_lsr - str \rp, [\rv, #0] - b 10b - - /* Store both phys and virt address for the uart */ -98: add \rp, \rp, #0x48000000 @ phys base - mrc p15, 0, \rv, c1, c0 - tst \rv, #1 @ MMU enabled? - ldreq \rv, =__virt_to_phys(omap_uart_phys) @ MMU not enabled - ldrne \rv, =omap_uart_phys @ MMU enabled - str \rp, [\rv, #0] - sub \rp, \rp, #0x48000000 @ phys base - add \rp, \rp, #0xfa000000 @ virt base - add \rv, \rv, #4 @ omap_uart_virt - str \rp, [\rv, #0] - mov \rp, #(UART_LSR << OMAP_PORT_SHIFT) - add \rv, \rv, #4 @ omap_uart_lsr - str \rp, [\rv, #0] - - b 10b -99: - .endm - - .macro senduart,rd,rx - strb \rd, [\rx] - .endm - - .macro busyuart,rd,rx -1001: mrc p15, 0, \rd, c1, c0 - tst \rd, #1 @ MMU enabled? - ldreq \rd, =__virt_to_phys(omap_uart_lsr) @ MMU not enabled - ldrne \rd, =omap_uart_lsr @ MMU enabled - ldr \rd, [\rd, #0] - ldrb \rd, [\rx, \rd] - and \rd, \rd, #(UART_LSR_TEMT | UART_LSR_THRE) - teq \rd, #(UART_LSR_TEMT | UART_LSR_THRE) - bne 1001b - .endm - - .macro waituart,rd,rx - .endm |