| .. | .. |
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| 1 | +// SPDX-License-Identifier: GPL-2.0-or-later |
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| 1 | 2 | /* |
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| 2 | 3 | * MX35 CPU type detection |
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| 3 | 4 | * |
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| 4 | 5 | * Copyright (c) 2009 Daniel Mack <daniel@caiaq.de> |
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| 5 | | - * |
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| 6 | | - * This program is free software; you can redistribute it and/or modify |
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| 7 | | - * it under the terms of the GNU General Public License as published by |
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| 8 | | - * the Free Software Foundation; either version 2 of the License, or |
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| 9 | | - * (at your option) any later version. |
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| 10 | 6 | */ |
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| 11 | 7 | #include <linux/module.h> |
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| 8 | +#include <linux/of_address.h> |
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| 12 | 9 | #include <linux/io.h> |
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| 13 | 10 | |
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| 14 | 11 | #include "hardware.h" |
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| .. | .. |
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| 18 | 15 | |
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| 19 | 16 | static int mx35_read_cpu_rev(void) |
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| 20 | 17 | { |
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| 18 | + void __iomem *iim_base; |
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| 19 | + struct device_node *np; |
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| 21 | 20 | u32 rev; |
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| 22 | 21 | |
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| 23 | | - rev = imx_readl(MX35_IO_ADDRESS(MX35_IIM_BASE_ADDR + MXC_IIMSREV)); |
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| 22 | + np = of_find_compatible_node(NULL, NULL, "fsl,imx35-iim"); |
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| 23 | + iim_base = of_iomap(np, 0); |
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| 24 | + of_node_put(np); |
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| 25 | + BUG_ON(!iim_base); |
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| 26 | + |
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| 27 | + rev = imx_readl(iim_base + MXC_IIMSREV); |
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| 24 | 28 | switch (rev) { |
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| 25 | 29 | case 0x00: |
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| 26 | 30 | return IMX_CHIP_REVISION_1_0; |
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