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61 lines
2.1 KiB
Diff
61 lines
2.1 KiB
Diff
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From 8fc2eacbe332fbf6bfd09425fb141bb47d843a78 Mon Sep 17 00:00:00 2001
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From: John Crispin <blogic@openwrt.org>
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Date: Mon, 22 Oct 2012 09:32:46 +0200
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Subject: [PATCH 104/113] MIPS: lantiq: xway: split ltq_reset_once into 2
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subfunctions
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We need to call the reset functions from within the phy reset code and dont
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want to duplicate the access code for the reset registers.
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Signed-off-by: John Crispin <blogic@openwrt.org>
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---
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arch/mips/include/asm/mach-lantiq/xway/lantiq_soc.h | 3 +++
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arch/mips/lantiq/xway/reset.c | 14 ++++++++++++--
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2 files changed, 15 insertions(+), 2 deletions(-)
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diff --git a/arch/mips/include/asm/mach-lantiq/xway/lantiq_soc.h b/arch/mips/include/asm/mach-lantiq/xway/lantiq_soc.h
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index 6a2df70..6b9f5be 100644
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--- a/arch/mips/include/asm/mach-lantiq/xway/lantiq_soc.h
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+++ b/arch/mips/include/asm/mach-lantiq/xway/lantiq_soc.h
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@@ -87,5 +87,8 @@ extern __iomem void *ltq_cgu_membase;
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extern void ltq_pmu_enable(unsigned int module);
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extern void ltq_pmu_disable(unsigned int module);
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+/* allow drivers to reset clock domains and ip cores */
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+void ltq_reset_once(unsigned int module, ulong u);
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+
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#endif /* CONFIG_SOC_TYPE_XWAY */
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#endif /* _LTQ_XWAY_H__ */
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diff --git a/arch/mips/lantiq/xway/reset.c b/arch/mips/lantiq/xway/reset.c
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index a89d1a3..1b77f82 100644
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--- a/arch/mips/lantiq/xway/reset.c
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+++ b/arch/mips/lantiq/xway/reset.c
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@@ -55,12 +55,22 @@ unsigned char ltq_boot_select(void)
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return (val >> RCU_BOOT_SEL_SHIFT) & RCU_BOOT_SEL_MASK;
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}
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+static void ltq_reset_enter(unsigned int module)
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+{
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+ ltq_rcu_w32(ltq_rcu_r32(RCU_RST_REQ) | module, RCU_RST_REQ);
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+}
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+
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+static void ltq_reset_leave(unsigned int module)
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+{
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+ ltq_rcu_w32(ltq_rcu_r32(RCU_RST_REQ) & ~module, RCU_RST_REQ);
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+}
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+
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/* reset a io domain for u micro seconds */
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void ltq_reset_once(unsigned int module, ulong u)
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{
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- ltq_rcu_w32(ltq_rcu_r32(RCU_RST_REQ) | module, RCU_RST_REQ);
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+ ltq_reset_enter(RCU_RST_REQ);
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udelay(u);
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- ltq_rcu_w32(ltq_rcu_r32(RCU_RST_REQ) & ~module, RCU_RST_REQ);
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+ ltq_reset_leave(RCU_RST_REQ);
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}
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static void ltq_machine_restart(char *command)
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--
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1.7.10.4
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