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| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2011-11-29 01:51:07 -0800 |
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| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2011-11-29 01:51:07 -0800 |
| commit | 0d2cd91bf7b1a7cc1d638296111fcc2bcf5c0bb4 (patch) | |
| tree | d2ca69347816c27f9dc352581f5d0fe76811cd49 /arch/arm/mach-picoxcell/include/mach/debug-macro.S | |
| parent | 3d95fd6ad8d3cf582a70ed65660017114b6e4065 (diff) | |
| parent | caca6a03d365883564885f2c1da3e88dcf65d139 (diff) | |
| download | lwn-0d2cd91bf7b1a7cc1d638296111fcc2bcf5c0bb4.tar.gz lwn-0d2cd91bf7b1a7cc1d638296111fcc2bcf5c0bb4.zip | |
Merge commit 'v3.2-rc3' into next
Diffstat (limited to 'arch/arm/mach-picoxcell/include/mach/debug-macro.S')
| -rw-r--r-- | arch/arm/mach-picoxcell/include/mach/debug-macro.S | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/arch/arm/mach-picoxcell/include/mach/debug-macro.S b/arch/arm/mach-picoxcell/include/mach/debug-macro.S new file mode 100644 index 000000000000..58d4ee3ae949 --- /dev/null +++ b/arch/arm/mach-picoxcell/include/mach/debug-macro.S @@ -0,0 +1,35 @@ +/* + * Copyright (c) 2011 Picochip Ltd., Jamie Iles + * + * 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. + * + * Derived from arch/arm/mach-davinci/include/mach/debug-macro.S to use 32-bit + * accesses to the 8250. + */ +#include <linux/serial_reg.h> +#include <mach/hardware.h> +#include <mach/map.h> + +#define UART_SHIFT 2 + + .macro addruart, rp, rv, tmp + ldr \rv, =PHYS_TO_IO(PICOXCELL_UART1_BASE) + ldr \rp, =PICOXCELL_UART1_BASE + .endm + + .macro senduart,rd,rx + str \rd, [\rx, #UART_TX << UART_SHIFT] + .endm + + .macro busyuart,rd,rx +1002: ldr \rd, [\rx, #UART_LSR << UART_SHIFT] + and \rd, \rd, #UART_LSR_TEMT | UART_LSR_THRE + teq \rd, #UART_LSR_TEMT | UART_LSR_THRE + bne 1002b + .endm + + /* The UART's don't have any flow control IO's wired up. */ + .macro waituart,rd,rx + .endm |