forked from luck/tmp_suning_uos_patched
0ea1293009
Rather than checking the MMU status in every instance of addruart, do it once in kernel/debug.S, and change the existing addruart macros to return both physical and virtual addresses. The main debug code can then select the appropriate address to use. This will also allow us to retreive the address of a uart for the MMU state that we're not current in. Updated with fixes for OMAP from Jason Wang <jason77.wang@gmail.com> and Tony Lindgren <tony@atomide.com>, and fix for versatile express from Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>. Signed-off-by: Jeremy Kerr <jeremy.kerr@canonical.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Jason Wang <jason77.wang@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com> Tested-by: Kevin Hilman <khilman@deeprootsystems.com>
82 lines
2.0 KiB
ArmAsm
82 lines
2.0 KiB
ArmAsm
/* arch/arm/mach-imx/include/mach/debug-macro.S
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*
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* Debugging macro include header
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*
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* Copyright (C) 1994-1999 Russell King
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* Moved from linux/arch/arm/kernel/debug.S by Ben Dooks
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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*/
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#define IMX_NEEDS_DEPRECATED_SYMBOLS
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#ifdef CONFIG_ARCH_MX1
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#include <mach/mx1.h>
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#define UART_PADDR UART1_BASE_ADDR
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#define UART_VADDR IO_ADDRESS(UART1_BASE_ADDR)
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#endif
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#ifdef CONFIG_ARCH_MX25
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#ifdef UART_PADDR
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#error "CONFIG_DEBUG_LL is incompatible with multiple archs"
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#endif
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#include <mach/mx25.h>
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#define UART_PADDR MX25_UART1_BASE_ADDR
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#define UART_VADDR MX25_AIPS1_IO_ADDRESS(MX25_UART1_BASE_ADDR)
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#endif
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#ifdef CONFIG_ARCH_MX2
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#ifdef UART_PADDR
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#error "CONFIG_DEBUG_LL is incompatible with multiple archs"
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#endif
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#include <mach/mx2x.h>
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#define UART_PADDR UART1_BASE_ADDR
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#define UART_VADDR AIPI_IO_ADDRESS(UART1_BASE_ADDR)
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#endif
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#ifdef CONFIG_ARCH_MX3
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#ifdef UART_PADDR
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#error "CONFIG_DEBUG_LL is incompatible with multiple archs"
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#endif
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#include <mach/mx3x.h>
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#define UART_PADDR UART1_BASE_ADDR
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#define UART_VADDR AIPS1_IO_ADDRESS(UART1_BASE_ADDR)
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#endif
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#ifdef CONFIG_ARCH_MX5
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#ifdef UART_PADDR
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#error "CONFIG_DEBUG_LL is incompatible with multiple archs"
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#endif
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#include <mach/mx51.h>
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#define UART_PADDR MX51_UART1_BASE_ADDR
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#define UART_VADDR MX51_AIPS1_IO_ADDRESS(MX51_UART1_BASE_ADDR)
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#endif
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#ifdef CONFIG_ARCH_MXC91231
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#ifdef UART_PADDR
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#error "CONFIG_DEBUG_LL is incompatible with multiple archs"
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#endif
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#include <mach/mxc91231.h>
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#define UART_PADDR MXC91231_UART2_BASE_ADDR
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#define UART_VADDR MXC91231_IO_ADDRESS(MXC91231_UART2_BASE_ADDR)
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#endif
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.macro addruart, rp, rv
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ldr \rp, =UART_PADDR @ physical
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ldr \rv, =UART_VADDR @ virtual
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.endm
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.macro senduart,rd,rx
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str \rd, [\rx, #0x40] @ TXDATA
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.endm
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.macro waituart,rd,rx
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.endm
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.macro busyuart,rd,rx
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1002: ldr \rd, [\rx, #0x98] @ SR2
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tst \rd, #1 << 3 @ TXDC
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beq 1002b @ wait until transmit done
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.endm
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