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author | Srikant Patnaik | 2015-01-13 15:08:24 +0530 |
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committer | Srikant Patnaik | 2015-01-13 15:08:24 +0530 |
commit | 97327692361306d1e6259021bc425e32832fdb50 (patch) | |
tree | fe9088f3248ec61e24f404f21b9793cb644b7f01 /arch/arm/mach-lpc32xx/include/mach/uncompress.h | |
parent | 2d05a8f663478a44e088d122e0d62109bbc801d0 (diff) | |
parent | a3a8b90b61e21be3dde9101c4e86c881e0f06210 (diff) | |
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dirty fix to merging
Diffstat (limited to 'arch/arm/mach-lpc32xx/include/mach/uncompress.h')
-rw-r--r-- | arch/arm/mach-lpc32xx/include/mach/uncompress.h | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/arch/arm/mach-lpc32xx/include/mach/uncompress.h b/arch/arm/mach-lpc32xx/include/mach/uncompress.h new file mode 100644 index 00000000..c142487d --- /dev/null +++ b/arch/arm/mach-lpc32xx/include/mach/uncompress.h @@ -0,0 +1,60 @@ +/* + * arch/arm/mach-lpc32xx/include/mach/uncompress.h + * + * Author: Kevin Wells <kevin.wells@nxp.com> + * + * Copyright (C) 2010 NXP Semiconductors + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef __ASM_ARM_ARCH_UNCOMPRESS_H +#define __ASM_ARM_ARCH_UNCOMPRESS_H + +#include <linux/io.h> + +#include <mach/hardware.h> +#include <mach/platform.h> + +/* + * Uncompress output is hardcoded to standard UART 5 + */ + +#define UART_FIFO_CTL_TX_RESET (1 << 2) +#define UART_STATUS_TX_MT (1 << 6) + +#define _UARTREG(x) (void __iomem *)(LPC32XX_UART5_BASE + (x)) + +#define LPC32XX_UART_DLLFIFO_O 0x00 +#define LPC32XX_UART_IIRFCR_O 0x08 +#define LPC32XX_UART_LSR_O 0x14 + +static inline void putc(int ch) +{ + /* Wait for transmit FIFO to empty */ + while ((__raw_readl(_UARTREG(LPC32XX_UART_LSR_O)) & + UART_STATUS_TX_MT) == 0) + ; + + __raw_writel((u32) ch, _UARTREG(LPC32XX_UART_DLLFIFO_O)); +} + +static inline void flush(void) +{ + __raw_writel(__raw_readl(_UARTREG(LPC32XX_UART_IIRFCR_O)) | + UART_FIFO_CTL_TX_RESET, _UARTREG(LPC32XX_UART_IIRFCR_O)); +} + +/* NULL functions; we don't presently need them */ +#define arch_decomp_setup() +#define arch_decomp_wdog() + +#endif |