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[U-Boot,v1,22/41] net: mvpp2: add AXI bridge initialization for PPv2.2

Message ID 20170321142802.24276-23-sr@denx.de
State Accepted
Commit cdf77799a36ab72d9c04a5073c681cb0e0839086
Delegated to: Stefan Roese
Headers show

Commit Message

Stefan Roese March 21, 2017, 2:27 p.m. UTC 
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

The PPv2.2 unit is connected to an AXI bus on Armada 7K/8K, so this
commit adds the necessary initialization of the AXI bridge.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Stefan Roese <sr@denx.de>
---

 drivers/net/mvpp2.c | 85 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 85 insertions(+)

Comments

Joe Hershberger March 21, 2017, 5:36 p.m. UTC | #1 
On Tue, Mar 21, 2017 at 9:27 AM, Stefan Roese <sr@denx.de> wrote:
> From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
>
> The PPv2.2 unit is connected to an AXI bus on Armada 7K/8K, so this
> commit adds the necessary initialization of the AXI bridge.
>
> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
> Signed-off-by: Stefan Roese <sr@denx.de>

Acked-by: Joe Hershberger <joe.hershberger@ni.com>
diff mbox

Patch

diff --git a/drivers/net/mvpp2.c b/drivers/net/mvpp2.c
index 7a5e0b2638..0ad808b4a2 100644
--- a/drivers/net/mvpp2.c
+++ b/drivers/net/mvpp2.c
@@ -198,6 +198,34 @@  do {									\
 #define MVPP2_WIN_REMAP(w)			(0x4040 + ((w) << 2))
 #define MVPP2_BASE_ADDR_ENABLE			0x4060
 
+/* AXI Bridge Registers */
+#define MVPP22_AXI_BM_WR_ATTR_REG		0x4100
+#define MVPP22_AXI_BM_RD_ATTR_REG		0x4104
+#define MVPP22_AXI_AGGRQ_DESCR_RD_ATTR_REG	0x4110
+#define MVPP22_AXI_TXQ_DESCR_WR_ATTR_REG	0x4114
+#define MVPP22_AXI_TXQ_DESCR_RD_ATTR_REG	0x4118
+#define MVPP22_AXI_RXQ_DESCR_WR_ATTR_REG	0x411c
+#define MVPP22_AXI_RX_DATA_WR_ATTR_REG		0x4120
+#define MVPP22_AXI_TX_DATA_RD_ATTR_REG		0x4130
+#define MVPP22_AXI_RD_NORMAL_CODE_REG		0x4150
+#define MVPP22_AXI_RD_SNOOP_CODE_REG		0x4154
+#define MVPP22_AXI_WR_NORMAL_CODE_REG		0x4160
+#define MVPP22_AXI_WR_SNOOP_CODE_REG		0x4164
+
+/* Values for AXI Bridge registers */
+#define MVPP22_AXI_ATTR_CACHE_OFFS		0
+#define MVPP22_AXI_ATTR_DOMAIN_OFFS		12
+
+#define MVPP22_AXI_CODE_CACHE_OFFS		0
+#define MVPP22_AXI_CODE_DOMAIN_OFFS		4
+
+#define MVPP22_AXI_CODE_CACHE_NON_CACHE		0x3
+#define MVPP22_AXI_CODE_CACHE_WR_CACHE		0x7
+#define MVPP22_AXI_CODE_CACHE_RD_CACHE		0xb
+
+#define MVPP22_AXI_CODE_DOMAIN_OUTER_DOM	2
+#define MVPP22_AXI_CODE_DOMAIN_SYSTEM		3
+
 /* Interrupt Cause and Mask registers */
 #define MVPP2_ISR_RX_THRESHOLD_REG(rxq)		(0x5200 + 4 * (rxq))
 #define MVPP2_ISR_RXQ_GROUP_REG(rxq)		(0x5400 + 4 * (rxq))
@@ -3875,6 +3903,60 @@  static void mvpp2_rx_fifo_init(struct mvpp2 *priv)
 	mvpp2_write(priv, MVPP2_RX_FIFO_INIT_REG, 0x1);
 }
 
+static void mvpp2_axi_init(struct mvpp2 *priv)
+{
+	u32 val, rdval, wrval;
+
+	mvpp2_write(priv, MVPP22_BM_ADDR_HIGH_RLS_REG, 0x0);
+
+	/* AXI Bridge Configuration */
+
+	rdval = MVPP22_AXI_CODE_CACHE_RD_CACHE
+		<< MVPP22_AXI_ATTR_CACHE_OFFS;
+	rdval |= MVPP22_AXI_CODE_DOMAIN_OUTER_DOM
+		<< MVPP22_AXI_ATTR_DOMAIN_OFFS;
+
+	wrval = MVPP22_AXI_CODE_CACHE_WR_CACHE
+		<< MVPP22_AXI_ATTR_CACHE_OFFS;
+	wrval |= MVPP22_AXI_CODE_DOMAIN_OUTER_DOM
+		<< MVPP22_AXI_ATTR_DOMAIN_OFFS;
+
+	/* BM */
+	mvpp2_write(priv, MVPP22_AXI_BM_WR_ATTR_REG, wrval);
+	mvpp2_write(priv, MVPP22_AXI_BM_RD_ATTR_REG, rdval);
+
+	/* Descriptors */
+	mvpp2_write(priv, MVPP22_AXI_AGGRQ_DESCR_RD_ATTR_REG, rdval);
+	mvpp2_write(priv, MVPP22_AXI_TXQ_DESCR_WR_ATTR_REG, wrval);
+	mvpp2_write(priv, MVPP22_AXI_TXQ_DESCR_RD_ATTR_REG, rdval);
+	mvpp2_write(priv, MVPP22_AXI_RXQ_DESCR_WR_ATTR_REG, wrval);
+
+	/* Buffer Data */
+	mvpp2_write(priv, MVPP22_AXI_TX_DATA_RD_ATTR_REG, rdval);
+	mvpp2_write(priv, MVPP22_AXI_RX_DATA_WR_ATTR_REG, wrval);
+
+	val = MVPP22_AXI_CODE_CACHE_NON_CACHE
+		<< MVPP22_AXI_CODE_CACHE_OFFS;
+	val |= MVPP22_AXI_CODE_DOMAIN_SYSTEM
+		<< MVPP22_AXI_CODE_DOMAIN_OFFS;
+	mvpp2_write(priv, MVPP22_AXI_RD_NORMAL_CODE_REG, val);
+	mvpp2_write(priv, MVPP22_AXI_WR_NORMAL_CODE_REG, val);
+
+	val = MVPP22_AXI_CODE_CACHE_RD_CACHE
+		<< MVPP22_AXI_CODE_CACHE_OFFS;
+	val |= MVPP22_AXI_CODE_DOMAIN_OUTER_DOM
+		<< MVPP22_AXI_CODE_DOMAIN_OFFS;
+
+	mvpp2_write(priv, MVPP22_AXI_RD_SNOOP_CODE_REG, val);
+
+	val = MVPP22_AXI_CODE_CACHE_WR_CACHE
+		<< MVPP22_AXI_CODE_CACHE_OFFS;
+	val |= MVPP22_AXI_CODE_DOMAIN_OUTER_DOM
+		<< MVPP22_AXI_CODE_DOMAIN_OFFS;
+
+	mvpp2_write(priv, MVPP22_AXI_WR_SNOOP_CODE_REG, val);
+}
+
 /* Initialize network controller common part HW */
 static int mvpp2_init(struct udevice *dev, struct mvpp2 *priv)
 {
@@ -3893,6 +3975,9 @@  static int mvpp2_init(struct udevice *dev, struct mvpp2 *priv)
 	if (dram_target_info)
 		mvpp2_conf_mbus_windows(dram_target_info, priv);
 
+	if (priv->hw_version == MVPP22)
+		mvpp2_axi_init(priv);
+
 	/* Disable HW PHY polling */
 	if (priv->hw_version == MVPP21) {
 		val = readl(priv->lms_base + MVPP2_PHY_AN_CFG0_REG);