ralink: add proper reset of pci core
Signed-off-by: John Crispin <blogic@openwrt.org> git-svn-id: svn://svn.openwrt.org/openwrt/trunk@43370 3c298f89-4303-0410-b956-a3cf2f4a3e73master
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@ -0,0 +1,29 @@
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Index: linux-3.14.18/arch/mips/ralink/reset.c
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===================================================================
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--- linux-3.14.18.orig/arch/mips/ralink/reset.c 2014-11-23 00:32:23.268612766 +0100
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+++ linux-3.14.18/arch/mips/ralink/reset.c 2014-11-23 01:13:46.850117349 +0100
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@@ -18,8 +18,10 @@
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#include <asm/mach-ralink/ralink_regs.h>
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/* Reset Control */
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-#define SYSC_REG_RESET_CTRL 0x034
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-#define RSTCTL_RESET_SYSTEM BIT(0)
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+#define SYSC_REG_RESET_CTRL 0x034
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+
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+#define RSTCTL_RESET_PCI BIT(26)
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+#define RSTCTL_RESET_SYSTEM BIT(0)
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static int ralink_assert_device(struct reset_controller_dev *rcdev,
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unsigned long id)
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@@ -83,6 +85,11 @@
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static void ralink_restart(char *command)
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{
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+ if (IS_ENABLED(CONFIG_PCI)) {
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+ rt_sysc_m32(0, RSTCTL_RESET_PCI, SYSC_REG_RESET_CTRL);
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+ mdelay(50);
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+ }
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+
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local_irq_disable();
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rt_sysc_w32(RSTCTL_RESET_SYSTEM, SYSC_REG_RESET_CTRL);
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unreachable();
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