01ea63d993
this patch adds UART0 and UART1 as LLUART port, as the new Atlas7 registers layout are different, it also refines some names of old hard-coded MARCOs and uses CONFIG_DEBUG_UART_PHYS/DEBUG_UART_VIRT to define different base addresses for multiple ports. Signed-off-by: Guo Zeng <Guo.Zeng@csr.com> Signed-off-by: Zhiwu Song <Zhiwu.Song@csr.com> Signed-off-by: Barry Song <Baohua.Song@csr.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
38 lines
824 B
ArmAsm
38 lines
824 B
ArmAsm
/*
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* arch/arm/mach-prima2/include/mach/debug-macro.S
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*
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* Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company.
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*
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* Licensed under GPLv2 or later.
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*/
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#define SIRF_LLUART_TXFIFO_STATUS 0x0114
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#define SIRF_LLUART_TXFIFO_DATA 0x0118
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#define SIRF_LLUART_TXFIFO_FULL (1 << 5)
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#ifdef CONFIG_DEBUG_SIRFATLAS7_UART0
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#define SIRF_LLUART_TXFIFO_EMPTY (1 << 8)
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#else
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#define SIRF_LLUART_TXFIFO_EMPTY (1 << 6)
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#endif
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.macro addruart, rp, rv, tmp
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ldr \rp, =CONFIG_DEBUG_UART_PHYS @ physical
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ldr \rv, =CONFIG_DEBUG_UART_VIRT @ virtual
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.endm
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.macro senduart,rd,rx
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str \rd, [\rx, #SIRF_LLUART_TXFIFO_DATA]
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.endm
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.macro busyuart,rd,rx
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.endm
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.macro waituart,rd,rx
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1001: ldr \rd, [\rx, #SIRF_LLUART_TXFIFO_STATUS]
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tst \rd, #SIRF_LLUART_TXFIFO_EMPTY
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beq 1001b
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.endm
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