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81 lines
2.2 KiB
Diff
81 lines
2.2 KiB
Diff
From fbf38a9b03d0c47ed602f090ebb2d8ecc0d51d04 Mon Sep 17 00:00:00 2001
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From: Gabor Juhos <juhosg@openwrt.org>
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Date: Fri, 18 Nov 2011 10:25:26 +0100
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Subject: [PATCH 05/35] MIPS: ath79: add a common PCI registration function
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The current code unconditionally registers the AR724X
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specific PCI controller, even if the kernel is running
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on a different SoC.
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Add a common function for PCI controller registration,
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and only register the AR724X PCI controller if the kernel
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is running on an AR724X SoC.
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Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
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v4: - simplify ath79_register_pci function
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v3: - fix compile error if CONFIG_PCI is not defined
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- add __init annotation to ath79_register_pci
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v2: - no changes
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---
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arch/mips/ath79/mach-ubnt-xm.c | 1 +
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arch/mips/ath79/pci.c | 10 ++++++++++
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arch/mips/ath79/pci.h | 6 ++++++
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arch/mips/pci/pci-ath724x.c | 2 --
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4 files changed, 17 insertions(+), 2 deletions(-)
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--- a/arch/mips/ath79/mach-ubnt-xm.c
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+++ b/arch/mips/ath79/mach-ubnt-xm.c
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@@ -111,6 +111,7 @@ static void __init ubnt_xm_init(void)
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ath724x_pci_add_data(ubnt_xm_pci_data, ARRAY_SIZE(ubnt_xm_pci_data));
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#endif /* CONFIG_PCI */
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+ ath79_register_pci();
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}
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MIPS_MACHINE(ATH79_MACH_UBNT_XM,
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--- a/arch/mips/ath79/pci.c
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+++ b/arch/mips/ath79/pci.c
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@@ -9,6 +9,8 @@
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*/
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#include <linux/pci.h>
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+#include <asm/mach-ath79/ath79.h>
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+#include <asm/mach-ath79/pci.h>
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#include "pci.h"
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static struct ath724x_pci_data *pci_data;
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@@ -44,3 +46,11 @@ int pcibios_plat_dev_init(struct pci_dev
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return PCIBIOS_SUCCESSFUL;
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}
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+
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+int __init ath79_register_pci(void)
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+{
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+ if (soc_is_ar724x())
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+ return ath724x_pcibios_init();
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+
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+ return -ENODEV;
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+}
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--- a/arch/mips/ath79/pci.h
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+++ b/arch/mips/ath79/pci.h
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@@ -18,4 +18,10 @@ struct ath724x_pci_data {
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void ath724x_pci_add_data(struct ath724x_pci_data *data, int size);
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+#ifdef CONFIG_PCI
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+int ath79_register_pci(void);
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+#else
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+static inline int ath79_register_pci(void) { return 0; }
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+#endif
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+
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#endif /* __ASM_MACH_ATH79_PCI_ATH724X_H */
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--- a/arch/mips/pci/pci-ath724x.c
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+++ b/arch/mips/pci/pci-ath724x.c
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@@ -137,5 +137,3 @@ int __init ath724x_pcibios_init(void)
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return PCIBIOS_SUCCESSFUL;
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}
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-
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-arch_initcall(ath724x_pcibios_init);
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