netdev - [PATCH v3 net-next 04/13] soc/mscc: ocelot: add MII registers description

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Message-Id: <20200531122640.1375715-5-olteanv@gmail.com>
Date:   Sun, 31 May 2020 15:26:31 +0300
From:   Vladimir Oltean <olteanv@...il.com>
To:     davem@...emloft.net
Cc:     netdev@...r.kernel.org, andrew@...n.ch, vivien.didelot@...il.com,
        f.fainelli@...il.com, antoine.tenart@...tlin.com,
        alexandre.belloni@...tlin.com, UNGLinuxDriver@...rochip.com,
        alexandru.marginean@....com, claudiu.manoil@....com,
        madalin.bucur@....nxp.com, radu-andrei.bulie@....com,
        fido_max@...ox.ru, broonie@...nel.org
Subject: [PATCH v3 net-next 04/13] soc/mscc: ocelot: add MII registers description

From: Maxim Kochetkov <fido_max@...ox.ru>

Add the register definitions for the MSCC MIIM MDIO controller in
preparation for seville_vsc9959.c to create its accessors for the
internal MDIO bus.

Since we've introduced elements to ocelot_regfields that are not
instantiated by felix and ocelot, we need to define the size of the
regfields arrays explicitly, otherwise ocelot_regfields_init, which
iterates up to REGFIELD_MAX, will fault on the undefined regfield
entries (if we're lucky).

Signed-off-by: Maxim Kochetkov <fido_max@...ox.ru>
Signed-off-by: Vladimir Oltean <vladimir.oltean@....com>
Reviewed-by: Florian Fainelli <f.fainelli@...il.com>
---
Changes in v3:
None.

Changes in v2:
Initialize regfields array with correct size.

 drivers/net/dsa/ocelot/felix_vsc9959.c  | 2 +-
 drivers/net/ethernet/mscc/ocelot_regs.c | 2 +-
 include/soc/mscc/ocelot.h               | 5 +++++
 3 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/net/dsa/ocelot/felix_vsc9959.c b/drivers/net/dsa/ocelot/felix_vsc9959.c
index b9415cb7bf9c..2a3c2d35165b 100644
--- a/drivers/net/dsa/ocelot/felix_vsc9959.c
+++ b/drivers/net/dsa/ocelot/felix_vsc9959.c
@@ -469,7 +469,7 @@ static const struct resource vsc9959_imdio_res = {
 	.name		= "imdio",
 };
 
-static const struct reg_field vsc9959_regfields[] = {
+static const struct reg_field vsc9959_regfields[REGFIELD_MAX] = {
 	[ANA_ADVLEARN_VLAN_CHK] = REG_FIELD(ANA_ADVLEARN, 6, 6),
 	[ANA_ADVLEARN_LEARN_MIRROR] = REG_FIELD(ANA_ADVLEARN, 0, 5),
 	[ANA_ANEVENTS_FLOOD_DISCARD] = REG_FIELD(ANA_ANEVENTS, 30, 30),
diff --git a/drivers/net/ethernet/mscc/ocelot_regs.c b/drivers/net/ethernet/mscc/ocelot_regs.c
index f74e30087421..efe455c4ebb1 100644
--- a/drivers/net/ethernet/mscc/ocelot_regs.c
+++ b/drivers/net/ethernet/mscc/ocelot_regs.c
@@ -299,7 +299,7 @@ static const u32 *ocelot_regmap[TARGET_MAX] = {
 	[DEV_GMII] = ocelot_dev_gmii_regmap,
 };
 
-static const struct reg_field ocelot_regfields[] = {
+static const struct reg_field ocelot_regfields[REGFIELD_MAX] = {
 	[ANA_ADVLEARN_VLAN_CHK] = REG_FIELD(ANA_ADVLEARN, 11, 11),
 	[ANA_ADVLEARN_LEARN_MIRROR] = REG_FIELD(ANA_ADVLEARN, 0, 10),
 	[ANA_ANEVENTS_MSTI_DROP] = REG_FIELD(ANA_ANEVENTS, 27, 27),
diff --git a/include/soc/mscc/ocelot.h b/include/soc/mscc/ocelot.h
index 79c77aab87e5..85b16f099c8f 100644
--- a/include/soc/mscc/ocelot.h
+++ b/include/soc/mscc/ocelot.h
@@ -394,6 +394,9 @@ enum ocelot_reg {
 	PTP_CLK_CFG_ADJ_CFG,
 	PTP_CLK_CFG_ADJ_FREQ,
 	GCB_SOFT_RST = GCB << TARGET_OFFSET,
+	GCB_MIIM_MII_STATUS,
+	GCB_MIIM_MII_CMD,
+	GCB_MIIM_MII_DATA,
 	DEV_CLOCK_CFG = DEV_GMII << TARGET_OFFSET,
 	DEV_PORT_MISC,
 	DEV_EVENTS,
@@ -481,6 +484,8 @@ enum ocelot_regfield {
 	SYS_RESET_CFG_MEM_ENA,
 	SYS_RESET_CFG_MEM_INIT,
 	GCB_SOFT_RST_SWC_RST,
+	GCB_MIIM_MII_STATUS_PENDING,
+	GCB_MIIM_MII_STATUS_BUSY,
 	REGFIELD_MAX
 };
 
-- 
2.25.1