[linux-yocto] [PATCH 13/28] LSI AXM55xx: Configuration updates and bug fixes for rapidio.
Charlie Paul
cpaul.windriver at gmail.com
Fri May 2 12:16:50 PDT 2014
From: Michael Bringmann <michael.bringmann at lsi.com>
Update the powerpc FDT settings for the latest AXXIA RIO code.
Update the ARM/PowerPC LSI configuration to build AXXIA RIO by default.
Add support to reset the AXXIA RIO controller when a Link Reset Request
symbol is received.
Signed-off-by: Michael Bringmann <michael.bringmann at lsi.com>
---
arch/powerpc/boot/dts/acp25xx.dts | 35 ++++++--------
arch/powerpc/boot/dts/acp342x.dts | 37 +++++++-------
arch/powerpc/boot/dts/acp344x.dts | 37 +++++++-------
arch/powerpc/boot/dts/acp35xx.dts | 27 +++++++----
drivers/rapidio/devices/lsi/axxia-rio-irq.c | 64 +++++++++++++++++++------
drivers/rapidio/devices/lsi/axxia-rio-irq.h | 1 +
drivers/rapidio/devices/lsi/axxia-rio-sysfs.c | 15 +++---
drivers/rapidio/devices/lsi/axxia-rio.c | 2 +-
8 files changed, 123 insertions(+), 95 deletions(-)
diff --git a/arch/powerpc/boot/dts/acp25xx.dts b/arch/powerpc/boot/dts/acp25xx.dts
index 1207631..02f6a28 100644
--- a/arch/powerpc/boot/dts/acp25xx.dts
+++ b/arch/powerpc/boot/dts/acp25xx.dts
@@ -283,27 +283,20 @@
>;
};
- rio0: rapidio at f0020000 {
- compatible = "lsi,rapidio-delta";
+ rio0: rapidio at 0x2100000000 {
+ index = <0>;
+ status = "okay";
+ #address-cells = <2>;
+ #size-cells = <2>;
+ compatible = "axxia,rapidio-delta";
device_type = "rapidio";
- enabled = <0>;
- #size = <0>; /* 0 = (256, small system)
- * 1 = (65536, large system) */
-/*
- #host-device-id = <1>;
-*/
- /* >=0 for enum; < 0 for disc */
-/*
- num-dme = <1 0 1>;
-*/
- /* (#outb-mseg>, <#outb-sseg>, <#inb> */
-/*
- num-odme-mseg-desc = <2 128 128>;
- num-odme-sseg-desc = <1 256>;
- num-idme-desc = <1 512>;
-*/
- reg = <0xf0020000 0x20000 0x1000>; /* SRIO Conf region */
- interrupt-parent = <&MPIC>;
- interrupts = <30 0x2 /* NCP_INTR_MPIC_SRC_AXIS_SRIO */>;
+ reg = <0x0020 0x00560000 0x0 0x1000>; /* SRIO Conf 0 region */
+ ranges = <0x0 0x0 0x0021 0x00000000 0x0 0x40000000>;
+ linkdown-reset = <0x0200 0x100 0x0020 0x00430000 0x0 0x000010000>;
+ interrupt-parent = <&MPIC>;
+ interrupts = <30 2>;
+ outb-dmes = <2 0x00000003 1 0x00000001>;
+ enable_ds = <1>;
};
+
};
diff --git a/arch/powerpc/boot/dts/acp342x.dts b/arch/powerpc/boot/dts/acp342x.dts
index c9c8a35..99d2858 100644
--- a/arch/powerpc/boot/dts/acp342x.dts
+++ b/arch/powerpc/boot/dts/acp342x.dts
@@ -284,27 +284,22 @@
>;
};
- rio0: rapidio at f0020000 {
- compatible = "lsi,rapidio-delta";
+ rio0: rapidio at 0x2080000000 {
+ index = <0>;
+ status = "okay";
+ #address-cells = <2>;
+ #size-cells = <2>;
+ compatible = "axxia,rapidio-delta";
device_type = "rapidio";
- enabled = <0>;
- #size = <0>; /* 0 = (256, small system)
- * 1 = (65536, large system) */
-/*
- #host-device-id = <1>;
-*/
- /* >=0 for enum; < 0 for disc */
-/*
- num-dme = <1 0 1>;
-*/
- /* (#outb-mseg>, <#outb-sseg>, <#inb> */
-/*
- num-odme-mseg-desc = <2 128 128>;
- num-odme-sseg-desc = <1 256>;
- num-idme-desc = <1 512>;
-*/
- reg = <0xf0020000 0x20000 0x1000>; /* SRIO Conf region */
- interrupt-parent = <&MPIC>;
- interrupts = <30 0x2 /* NCP_INTR_MPIC_SRC_AXIS_SRIO */>;
+ reg = <0x0020 0x00420000 0x0 0x1000>; /* SRIO Conf 0 region */
+ ranges = <0x0 0x0 0x0020 0x80000000 0x0 0x40000000>;
+ /*
+ linkdown-reset = <0x0200 0x100 0x0020 0x00430000 0x0 0x000010000>;
+ */
+ interrupt-parent = <&MPIC>;
+ interrupts = <30 2>;
+ outb-dmes = <2 0x00000003 1 0x00000001>;
+ enable_ds = <1>;
};
+
};
diff --git a/arch/powerpc/boot/dts/acp344x.dts b/arch/powerpc/boot/dts/acp344x.dts
index 1207631..51fa547 100644
--- a/arch/powerpc/boot/dts/acp344x.dts
+++ b/arch/powerpc/boot/dts/acp344x.dts
@@ -283,27 +283,22 @@
>;
};
- rio0: rapidio at f0020000 {
- compatible = "lsi,rapidio-delta";
+ rio0: rapidio at 0x2080000000 {
+ index = <0>;
+ status = "okay";
+ #address-cells = <2>;
+ #size-cells = <2>;
+ compatible = "axxia,rapidio-delta";
device_type = "rapidio";
- enabled = <0>;
- #size = <0>; /* 0 = (256, small system)
- * 1 = (65536, large system) */
-/*
- #host-device-id = <1>;
-*/
- /* >=0 for enum; < 0 for disc */
-/*
- num-dme = <1 0 1>;
-*/
- /* (#outb-mseg>, <#outb-sseg>, <#inb> */
-/*
- num-odme-mseg-desc = <2 128 128>;
- num-odme-sseg-desc = <1 256>;
- num-idme-desc = <1 512>;
-*/
- reg = <0xf0020000 0x20000 0x1000>; /* SRIO Conf region */
- interrupt-parent = <&MPIC>;
- interrupts = <30 0x2 /* NCP_INTR_MPIC_SRC_AXIS_SRIO */>;
+ reg = <0x0020 0x00420000 0x0 0x1000>; /* SRIO Conf 0 region */
+ ranges = <0x0 0x0 0x0020 0x80000000 0x0 0x40000000>;
+ /*
+ linkdown-reset = <0x0200 0x100 0x0020 0x00430000 0x0 0x000010000>;
+ */
+ interrupt-parent = <&MPIC>;
+ interrupts = <30 2>;
+ outb-dmes = <2 0x00000003 1 0x00000001>;
+ enable_ds = <1>;
};
+
};
diff --git a/arch/powerpc/boot/dts/acp35xx.dts b/arch/powerpc/boot/dts/acp35xx.dts
index 83a4c90..a26061d 100644
--- a/arch/powerpc/boot/dts/acp35xx.dts
+++ b/arch/powerpc/boot/dts/acp35xx.dts
@@ -27,7 +27,7 @@
serial0 = &UART0;
serial1 = &UART1;
ethernet0 = &FEMAC;
- rapidio0 = &SRIO0;
+ rapidio0 = &rio0;
};
cpus {
@@ -393,14 +393,21 @@
0000 0 0 4 &MPIC 55 2
>;
};
-+ SRIO0: srio0 {
-+ compatible = "acp,rapidio-delta";
+
+ rio0: rapidio at 0x2100000000 {
+ index = <0>;
+ status = "okay";
+ #address-cells = <2>;
+ #size-cells = <2>;
+ compatible = "axxia,rapidio-delta";
device_type = "rapidio";
- enabled = <0>;
- #size = <0>; /* 0 = (256, small system)
- * 1 = (65536, large system) */
- reg = <0xf0020000 0x20000 0x1000>; /* SRIO Conf region */
- interrupt-parent = <&MPIC>;
- interrupts = <56 0x2 /* NCP_INTR_MPIC_SRC_AXIS_SRIO */>;
- };
+ reg = <0x0020 0x00560000 0x0 0x1000>; /* SRIO Conf 0 region */
+ ranges = <0x0 0x0 0x0021 0x00000000 0x0 0x40000000>;
+ linkdown-reset = <0x0200 0x100 0x0020 0x0040A000 0x0 0x000010000>;
+ interrupt-parent = <&MPIC>;
+ interrupts = <56 2>;
+ outb-dmes = <2 0x00000003 1 0x00000001>;
+ enable_ds = <1>;
+ };
++
};
diff --git a/drivers/rapidio/devices/lsi/axxia-rio-irq.c b/drivers/rapidio/devices/lsi/axxia-rio-irq.c
index ae965f9..3c88941 100644
--- a/drivers/rapidio/devices/lsi/axxia-rio-irq.c
+++ b/drivers/rapidio/devices/lsi/axxia-rio-irq.c
@@ -141,7 +141,7 @@ static inline void __misc_info_dbg(struct rio_priv *priv, u32 misc_state)
/* Log only - no enable bit or state to clear */
if (misc_state & (UNEXP_MSG_LOG | UNEXP_MSG_INT |
LL_TL_INT | GRIO_INT |
- UNSP_RIO_REQ_INT)) {
+ UNSP_RIO_REQ_INT | LINK_REQ_INT)) {
if (misc_state & UNEXP_MSG_INT)
__irq_dbg(priv, RIO_MISC_UNEXP);
if (misc_state & LL_TL_INT)
@@ -150,6 +150,8 @@ static inline void __misc_info_dbg(struct rio_priv *priv, u32 misc_state)
__irq_dbg(priv, RIO_MISC_GRIO);
if (misc_state & UNSP_RIO_REQ_INT)
__irq_dbg(priv, RIO_MISC_UNSUP);
+ if (misc_state & LINK_REQ_INT)
+ __irq_dbg(priv, RIO_MISC_LINK_REQ);
}
}
@@ -534,6 +536,42 @@ static inline void __misc_fatal(struct rio_mport *mport,
}
/**
+ * srio_sw_reset - Reset the SRIO (GRIO) module when it reaches a fatal
+ * lockup state
+ * @mport: Master port with triggered interrupt
+ */
+static void srio_sw_reset(struct rio_mport *mport)
+{
+ struct rio_priv *priv = mport->priv;
+
+ /**
+ * Reset platform if port is broken
+ */
+ if (priv->linkdown_reset.win) {
+ u32 r0, r00, r1, r2;
+
+ __rio_local_read_config_32(mport, RIO_DID_CSR, &r1);
+ __rio_local_read_config_32(mport, RIO_COMPONENT_TAG_CSR, &r2);
+
+ r0 = *((u32 *)priv->linkdown_reset.win+
+ priv->linkdown_reset.reg_addr);
+ *((u32 *)priv->linkdown_reset.win+
+ priv->linkdown_reset.reg_addr) =
+ r0 | priv->linkdown_reset.reg_mask;
+
+ r00 = *((u32 *)priv->linkdown_reset.win+
+ priv->linkdown_reset.reg_addr);
+ /* Verify that the bit was set? */
+
+ *((u32 *)priv->linkdown_reset.win+
+ priv->linkdown_reset.reg_addr) = r0;
+
+ __rio_local_write_config_32(mport, RIO_DID_CSR, r1);
+ __rio_local_write_config_32(mport, RIO_COMPONENT_TAG_CSR, r2);
+ }
+}
+
+/**
* misc_irq_handler - MISC interrupt handler
* @h: handler specific data
* @state: Interrupt state
@@ -545,8 +583,14 @@ static void misc_irq_handler(struct rio_irq_handler *h, u32 state)
struct rio_priv *priv = mport->priv;
#endif
+ /*
+ * Handle miscellaneous 'Link (IPG) Reset Request'
+ */
+ if (state & LINK_REQ_INT)
+ srio_sw_reset(mport);
+
/**
- * notify platform if port is broken
+ * Notify platform if port is broken
*/
__misc_fatal(mport, state);
@@ -573,17 +617,8 @@ static void linkdown_irq_handler(struct rio_irq_handler *h, u32 state)
/**
* Reset platform if port is broken
*/
- if (state & RAB_SRDS_STAT1_LINKDOWN_INT) {
- u32 r32;
- r32 = *((u32 *)priv->linkdown_reset.win+
- priv->linkdown_reset.reg_addr);
- r32 |= priv->linkdown_reset.reg_mask;
- *((u32 *)priv->linkdown_reset.win+
- priv->linkdown_reset.reg_addr) =
- r32 | priv->linkdown_reset.reg_mask;
- *((u32 *)priv->linkdown_reset.win+
- priv->linkdown_reset.reg_addr) = r32;
- }
+ if (state & RAB_SRDS_STAT1_LINKDOWN_INT)
+ srio_sw_reset(mport);
#if defined(CONFIG_AXXIA_RIO_STAT)
/**
@@ -2526,7 +2561,8 @@ void axxia_rio_port_irq_init(struct rio_mport *mport)
priv->misc_irq.mport = mport;
priv->misc_irq.irq_enab_reg_addr = RAB_INTR_ENAB_MISC;
priv->misc_irq.irq_state_reg_addr = RAB_INTR_STAT_MISC;
- priv->misc_irq.irq_state_mask = AMST_INT | ASLV_INT;
+ priv->misc_irq.irq_state_mask = AMST_INT | ASLV_INT |
+ LINK_REQ_INT;
#if defined(CONFIG_AXXIA_RIO_STAT)
priv->misc_irq.irq_state_mask |=
GRIO_INT | LL_TL_INT | UNEXP_MSG_LOG |
diff --git a/drivers/rapidio/devices/lsi/axxia-rio-irq.h b/drivers/rapidio/devices/lsi/axxia-rio-irq.h
index f5f85e5..aeed9cb 100644
--- a/drivers/rapidio/devices/lsi/axxia-rio-irq.h
+++ b/drivers/rapidio/devices/lsi/axxia-rio-irq.h
@@ -59,6 +59,7 @@ enum rio_irq_dbg {
RIO_MISC_TL,
RIO_MISC_GRIO,
RIO_MISC_UNSUP,
+ RIO_MISC_LINK_REQ,
RIO_LINKDOWN,
/**
* Peripheral Bus bridge, RapidIO -> Peripheral bus events - mostly bad!
diff --git a/drivers/rapidio/devices/lsi/axxia-rio-sysfs.c b/drivers/rapidio/devices/lsi/axxia-rio-sysfs.c
index 3538162..8d9a7a5 100644
--- a/drivers/rapidio/devices/lsi/axxia-rio-sysfs.c
+++ b/drivers/rapidio/devices/lsi/axxia-rio-sysfs.c
@@ -53,16 +53,17 @@ static const char *state_str[] = {
static const char *irq_str[] = {
/* Axxia Error Events - really bad! */
- "Axxia Master Write timouts ",
- "Axxia Master Read timouts ",
- "Axxia Slave write decode error response ",
- "Axxia Slave write error response ",
- "Axxia Slave read decode error response ",
- "Axxia Slave read error response ",
- "Axxia Slave unsupported cmds ",
+ "Axxia Master Write timouts ",
+ "Axxia Master Read timouts ",
+ "Axxia Slave write decode error response ",
+ "Axxia Slave write error response ",
+ "Axxia Slave read decode error response ",
+ "Axxia Slave read error response ",
+ "Axxia Slave unsupported cmds ",
"Logical/Transport layer errors ",
"General RapidIO Controller errors ",
"Unsupported RIO req received ",
+ "Link Reset RIO req received ",
"Linkdown per Deadman Monitor IRQ ",
/*
* Peripheral Bus bridge, RapidIO -> Peripheral
diff --git a/drivers/rapidio/devices/lsi/axxia-rio.c b/drivers/rapidio/devices/lsi/axxia-rio.c
index a8ff2bb..48d36a3 100644
--- a/drivers/rapidio/devices/lsi/axxia-rio.c
+++ b/drivers/rapidio/devices/lsi/axxia-rio.c
@@ -765,7 +765,7 @@ void axxia_rio_set_mport_disc_mode(struct rio_mport *mport)
#ifdef SRIO_IODEBUG
__rio_local_read_config_32(mport, RIO_GCCSR, &result);
- dev_dbg(priv->dev, "%d RIO_GEN_CTL_CSR set to 0x%X for main port\n",
+ IODP("rio[%d]: RIO_GEN_CTL_CSR set to 0x%X for main port\n",
mport->id, result);
#endif
--
1.7.9.5
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