24b0e3e84f
The DDR controller need to be used by the IRQ controller to flush the write buffer of some devices before running the IRQ handler. It is also used by the PCI controller to setup the PCI memory windows. The current interface used to access the DDR controller doesn't provides any useful abstraction and simply rely on a shared global pointer. Replace this by a simple API to setup the PCI memory windows and use the write buffer flush independently of the SoC type. That remove the need for the shared global pointer, simplify the IRQ handler code. [ralf@linux-mips.org: Folded in Alban Bedel's follup fix.] Signed-off-by: Alban Bedel <albeu@free.fr> Cc: linux-mips@linux-mips.org Cc: Andrew Bresticker <abrestic@chromium.org> Cc: Qais Yousef <qais.yousef@imgtec.com> Cc: Wolfram Sang <wsa@the-dreams.de> Cc: Sergey Ryazanov <ryazanov.s.a@gmail.com> Cc: Gabor Juhos <juhosg@openwrt.org> Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/9773/ Patchwork: http://patchwork.linux-mips.org/patch/10543/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
34 lines
959 B
C
34 lines
959 B
C
/*
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* Atheros AR71XX/AR724X/AR913X common definitions
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*
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* Copyright (C) 2008-2011 Gabor Juhos <juhosg@openwrt.org>
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* Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
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*
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* Parts of this file are based on Atheros' 2.6.15 BSP
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published
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* by the Free Software Foundation.
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*/
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#ifndef __ATH79_COMMON_H
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#define __ATH79_COMMON_H
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#include <linux/types.h>
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#define ATH79_MEM_SIZE_MIN (2 * 1024 * 1024)
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#define ATH79_MEM_SIZE_MAX (256 * 1024 * 1024)
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void ath79_clocks_init(void);
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unsigned long ath79_get_sys_clk_rate(const char *id);
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void ath79_ddr_ctrl_init(void);
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void ath79_ddr_wb_flush(unsigned int reg);
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void ath79_gpio_function_enable(u32 mask);
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void ath79_gpio_function_disable(u32 mask);
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void ath79_gpio_function_setup(u32 set, u32 clear);
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void ath79_gpio_init(void);
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#endif /* __ATH79_COMMON_H */
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