linux-kernel-test/arch/arm/plat-omap/include/mach/debug-macro.S
Santosh Shilimkar 44169075e6 ARM: OMAP4: Add minimal support for omap4
This patch adds the support for OMAP4. The platform and machine specific
headers and sources updated for OMAP4430 SDP platform.

OMAP4430 is Texas Instrument's SOC based on ARM Cortex-A9 SMP architecture.
It's a dual core SOC with GIC used for interrupt handling and SCU for cache
coherency.

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-05-28 14:16:04 -07:00

71 lines
1.8 KiB
ArmAsm

/* arch/arm/plat-omap/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.
*
*/
.macro addruart,rx
mrc p15, 0, \rx, c1, c0
tst \rx, #1 @ MMU enabled?
#ifdef CONFIG_ARCH_OMAP1
moveq \rx, #0xff000000 @ physical base address
movne \rx, #0xfe000000 @ virtual base
orr \rx, \rx, #0x00fb0000
#ifdef CONFIG_OMAP_LL_DEBUG_UART3
orr \rx, \rx, #0x00009000 @ UART 3
#endif
#if defined(CONFIG_OMAP_LL_DEBUG_UART2) || defined(CONFIG_OMAP_LL_DEBUG_UART3)
orr \rx, \rx, #0x00000800 @ UART 2 & 3
#endif
#elif CONFIG_ARCH_OMAP2
moveq \rx, #0x48000000 @ physical base address
movne \rx, #0xd8000000 @ virtual base
orr \rx, \rx, #0x0006a000
#ifdef CONFIG_OMAP_LL_DEBUG_UART2
add \rx, \rx, #0x00002000 @ UART 2
#endif
#ifdef CONFIG_OMAP_LL_DEBUG_UART3
add \rx, \rx, #0x00004000 @ UART 3
#endif
#elif defined(CONFIG_ARCH_OMAP3) || defined(CONFIG_ARCH_OMAP4)
moveq \rx, #0x48000000 @ physical base address
movne \rx, #0xd8000000 @ virtual base
orr \rx, \rx, #0x0006a000
#ifdef CONFIG_OMAP_LL_DEBUG_UART2
add \rx, \rx, #0x00002000 @ UART 2
#endif
#ifdef CONFIG_OMAP_LL_DEBUG_UART3
add \rx, \rx, #0x00fb0000 @ UART 3
add \rx, \rx, #0x00006000
#endif
#endif
.endm
.macro senduart,rd,rx
strb \rd, [\rx]
.endm
.macro busyuart,rd,rx
1001: ldrb \rd, [\rx, #(0x5 << 2)] @ OMAP-1510 and friends
and \rd, \rd, #0x60
teq \rd, #0x60
beq 1002f
ldrb \rd, [\rx, #(0x5 << 0)] @ OMAP-730 only
and \rd, \rd, #0x60
teq \rd, #0x60
bne 1001b
1002:
.endm
.macro waituart,rd,rx
.endm