openwrt/target/linux/brcm63xx/patches-4.4/342-MIPS-BCM63XX-split-PCIe-reset-signals.patch

From 4bdfacdeaf3c988c4f3256c88118893eac640b03 Mon Sep 17 00:00:00 2001
From: Jonas Gorski <jogo@openwrt.org>
Date: Sun, 8 Dec 2013 14:17:50 +0100
Subject: [PATCH 52/53] MIPS: BCM63XX: split PCIE reset signals

---
 arch/mips/bcm63xx/reset.c                          | 39 ++++++++++++++--------
 arch/mips/include/asm/mach-bcm63xx/bcm63xx_reset.h |  2 ++
 arch/mips/pci/pci-bcm63xx.c                        |  7 ++++
 3 files changed, 34 insertions(+), 14 deletions(-)

--- a/arch/mips/bcm63xx/reset.c
+++ b/arch/mips/bcm63xx/reset.c
@@ -28,7 +28,9 @@
 	[BCM63XX_RESET_PCM]		= BCM## __cpu ##_RESET_PCM,	\
 	[BCM63XX_RESET_MPI]		= BCM## __cpu ##_RESET_MPI,	\
 	[BCM63XX_RESET_PCIE]		= BCM## __cpu ##_RESET_PCIE,	\
-	[BCM63XX_RESET_PCIE_EXT]	= BCM## __cpu ##_RESET_PCIE_EXT,
+	[BCM63XX_RESET_PCIE_EXT]	= BCM## __cpu ##_RESET_PCIE_EXT, \
+	[BCM63XX_RESET_PCIE_CORE]	= BCM## __cpu ##_RESET_PCIE_CORE, \
+	[BCM63XX_RESET_PCIE_HARD]	= BCM## __cpu ##_RESET_PCIE_HARD,
 
 #define BCM3368_RESET_SPI	SOFTRESET_3368_SPI_MASK
 #define BCM3368_RESET_ENET	SOFTRESET_3368_ENET_MASK
@@ -42,6 +44,8 @@
 #define BCM3368_RESET_MPI	SOFTRESET_3368_MPI_MASK
 #define BCM3368_RESET_PCIE	0
 #define BCM3368_RESET_PCIE_EXT	0
+#define BCM3368_RESET_PCIE_CORE	0
+#define BCM3368_RESET_PCIE_HARD	0
 
 
 #define BCM6318_RESET_SPI	SOFTRESET_6318_SPI_MASK
@@ -54,11 +58,10 @@
 #define BCM6318_RESET_ENETSW	SOFTRESET_6318_ENETSW_MASK
 #define BCM6318_RESET_PCM	0
 #define BCM6318_RESET_MPI	0
-#define BCM6318_RESET_PCIE	\
-				(SOFTRESET_6318_PCIE_MASK |		\
-				 SOFTRESET_6318_PCIE_CORE_MASK |	\
-				 SOFTRESET_6318_PCIE_HARD_MASK)
+#define BCM6318_RESET_PCIE	SOFTRESET_6318_PCIE_MASK
 #define BCM6318_RESET_PCIE_EXT	SOFTRESET_6318_PCIE_EXT_MASK
+#define BCM6318_RESET_PCIE_CORE	SOFTRESET_6318_PCIE_CORE_MASK
+#define BCM6318_RESET_PCIE_HARD	SOFTRESET_6318_PCIE_HARD_MASK
 
 #define BCM6328_RESET_SPI	SOFTRESET_6328_SPI_MASK
 #define BCM6328_RESET_ENET	0
@@ -70,11 +73,10 @@
 #define BCM6328_RESET_ENETSW	SOFTRESET_6328_ENETSW_MASK
 #define BCM6328_RESET_PCM	SOFTRESET_6328_PCM_MASK
 #define BCM6328_RESET_MPI	0
-#define BCM6328_RESET_PCIE	\
-				(SOFTRESET_6328_PCIE_MASK |		\
-				 SOFTRESET_6328_PCIE_CORE_MASK |	\
-				 SOFTRESET_6328_PCIE_HARD_MASK)
+#define BCM6328_RESET_PCIE	SOFTRESET_6328_PCIE_MASK
 #define BCM6328_RESET_PCIE_EXT	SOFTRESET_6328_PCIE_EXT_MASK
+#define BCM6328_RESET_PCIE_CORE	SOFTRESET_6328_PCIE_CORE_MASK
+#define BCM6328_RESET_PCIE_HARD	SOFTRESET_6328_PCIE_HARD_MASK
 
 #define BCM6338_RESET_SPI	SOFTRESET_6338_SPI_MASK
 #define BCM6338_RESET_ENET	SOFTRESET_6338_ENET_MASK
@@ -88,6 +90,8 @@
 #define BCM6338_RESET_MPI	0
 #define BCM6338_RESET_PCIE	0
 #define BCM6338_RESET_PCIE_EXT	0
+#define BCM6338_RESET_PCIE_CORE	0
+#define BCM6338_RESET_PCIE_HARD	0
 
 #define BCM6348_RESET_SPI	SOFTRESET_6348_SPI_MASK
 #define BCM6348_RESET_ENET	SOFTRESET_6348_ENET_MASK
@@ -101,6 +105,8 @@
 #define BCM6348_RESET_MPI	0
 #define BCM6348_RESET_PCIE	0
 #define BCM6348_RESET_PCIE_EXT	0
+#define BCM6348_RESET_PCIE_CORE	0
+#define BCM6348_RESET_PCIE_HARD	0
 
 #define BCM6358_RESET_SPI	SOFTRESET_6358_SPI_MASK
 #define BCM6358_RESET_ENET	SOFTRESET_6358_ENET_MASK
@@ -114,6 +120,8 @@
 #define BCM6358_RESET_MPI	SOFTRESET_6358_MPI_MASK
 #define BCM6358_RESET_PCIE	0
 #define BCM6358_RESET_PCIE_EXT	0
+#define BCM6358_RESET_PCIE_CORE	0
+#define BCM6358_RESET_PCIE_HARD	0
 
 #define BCM6362_RESET_SPI	SOFTRESET_6362_SPI_MASK
 #define BCM6362_RESET_ENET	0
@@ -125,9 +133,10 @@
 #define BCM6362_RESET_ENETSW	SOFTRESET_6362_ENETSW_MASK
 #define BCM6362_RESET_PCM	SOFTRESET_6362_PCM_MASK
 #define BCM6362_RESET_MPI	0
-#define BCM6362_RESET_PCIE      (SOFTRESET_6362_PCIE_MASK | \
-				 SOFTRESET_6362_PCIE_CORE_MASK)
+#define BCM6362_RESET_PCIE      SOFTRESET_6362_PCIE_MASK
 #define BCM6362_RESET_PCIE_EXT	SOFTRESET_6362_PCIE_EXT_MASK
+#define BCM6362_RESET_PCIE_CORE	SOFTRESET_6362_PCIE_CORE_MASK
+#define BCM6362_RESET_PCIE_HARD	0
 
 #define BCM6368_RESET_SPI	SOFTRESET_6368_SPI_MASK
 #define BCM6368_RESET_ENET	0
@@ -141,6 +150,8 @@
 #define BCM6368_RESET_MPI	SOFTRESET_6368_MPI_MASK
 #define BCM6368_RESET_PCIE	0
 #define BCM6368_RESET_PCIE_EXT	0
+#define BCM6368_RESET_PCIE_CORE	0
+#define BCM6368_RESET_PCIE_HARD	0
 
 #define BCM63268_RESET_SPI	SOFTRESET_63268_SPI_MASK
 #define BCM63268_RESET_ENET	0
@@ -152,10 +163,10 @@
 #define BCM63268_RESET_ENETSW	SOFTRESET_63268_ENETSW_MASK
 #define BCM63268_RESET_PCM	SOFTRESET_63268_PCM_MASK
 #define BCM63268_RESET_MPI	0
-#define BCM63268_RESET_PCIE	(SOFTRESET_63268_PCIE_MASK | \
-				 SOFTRESET_63268_PCIE_CORE_MASK | \
-				 SOFTRESET_63268_PCIE_HARD_MASK)
+#define BCM63268_RESET_PCIE	SOFTRESET_63268_PCIE_MASK
 #define BCM63268_RESET_PCIE_EXT	SOFTRESET_63268_PCIE_EXT_MASK
+#define BCM63268_RESET_PCIE_CORE	SOFTRESET_63268_PCIE_CORE_MASK
+#define BCM63268_RESET_PCIE_HARD	SOFTRESET_63268_PCIE_HARD_MASK
 
 /*
  * core reset bits
--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_reset.h
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_reset.h
@@ -14,6 +14,8 @@ enum bcm63xx_core_reset {
 	BCM63XX_RESET_MPI,
 	BCM63XX_RESET_PCIE,
 	BCM63XX_RESET_PCIE_EXT,
+	BCM63XX_RESET_PCIE_CORE,
+	BCM63XX_RESET_PCIE_HARD,
 };
 
 void bcm63xx_core_set_reset(enum bcm63xx_core_reset, int reset);
--- a/arch/mips/pci/pci-bcm63xx.c
+++ b/arch/mips/pci/pci-bcm63xx.c
@@ -135,9 +135,16 @@ static void __init bcm63xx_reset_pcie(vo
 
 	/* reset the PCIe core */
 	bcm63xx_core_set_reset(BCM63XX_RESET_PCIE, 1);
+	bcm63xx_core_set_reset(BCM63XX_RESET_PCIE_CORE, 1);
 	bcm63xx_core_set_reset(BCM63XX_RESET_PCIE_EXT, 1);
+	if (BCMCPU_IS_6328() || BCMCPU_IS_63268()) {
+		bcm63xx_core_set_reset(BCM63XX_RESET_PCIE_HARD, 1);
+		mdelay(10);
+		bcm63xx_core_set_reset(BCM63XX_RESET_PCIE_HARD, 0);
+	}
 	mdelay(10);
 
+	bcm63xx_core_set_reset(BCM63XX_RESET_PCIE_CORE, 0);
 	bcm63xx_core_set_reset(BCM63XX_RESET_PCIE, 0);
 	mdelay(10);