[OpenWrt-Devel] [PATCH] ar71xx: Add eth rx delay for qca955x platforms

[Chris Blake]

This patch is to add support for qca955x_eth_rx_delay to work with the
qca955x SoC.

Signed-off-by: Chris R Blake <chrisrblake93 at gmail.com>

---
--- a/arch/mips/ath79/dev-eth.c
+++ b/arch/mips/ath79/dev-eth.c
@@ -823,6 +825,32 @@
  iounmap(base);
 }

+void __init ath79_setup_qca955x_eth_rx_delay(unsigned int rxd,
+      unsigned int rxdv)
+{
+ void __iomem *base;
+ u32 t;
+
+ rxd &= QCA955X_ETH_CFG_RXD_DELAY_MASK;
+ rxdv &= QCA955X_ETH_CFG_RDV_DELAY_MASK;
+
+ base = ioremap(QCA955X_GMAC_BASE, QCA955X_GMAC_SIZE);
+
+ t = __raw_readl(base + QCA955X_GMAC_REG_ETH_CFG);
+
+ t &= ~(QCA955X_ETH_CFG_RXD_DELAY_MASK << QCA955X_ETH_CFG_RXD_DELAY_SHIFT |
+       QCA955X_ETH_CFG_RDV_DELAY_MASK << QCA955X_ETH_CFG_RDV_DELAY_SHIFT);
+
+ t |= (rxd << QCA955X_ETH_CFG_RXD_DELAY_SHIFT |
+      rxdv << QCA955X_ETH_CFG_RDV_DELAY_SHIFT);
+
+ __raw_writel(t, base + QCA955X_GMAC_REG_ETH_CFG);
+ /* flush write */
+ __raw_readl(base + QCA955X_GMAC_REG_ETH_CFG);
+
+ iounmap(base);
+}
+
 static int ath79_eth_instance __initdata;
 void __init ath79_register_eth(unsigned int id)
 {
--- a/arch/mips/ath79/dev-eth.h
+++ b/arch/mips/ath79/dev-eth.h
@@ -49,5 +49,6 @@
 void ath79_setup_ar934x_eth_cfg(u32 mask);
 void ath79_setup_ar934x_eth_rx_delay(unsigned int rxd, unsigned int rxdv);
 void ath79_setup_qca955x_eth_cfg(u32 mask);
+void ath79_setup_qca955x_eth_rx_delay(unsigned int rxd, unsigned int rxdv);

 #endif /* _ATH79_DEV_ETH_H */
--- a/arch/mips/include/asm/mach-ath79/ar71xx_regs.h
+++ b/arch/mips/include/asm/mach-ath79/ar71xx_regs.h
@@ -1098,5 +1098,11 @@

 #define QCA955X_ETH_CFG_RGMII_EN BIT(0)
 #define QCA955X_ETH_CFG_GE0_SGMII BIT(6)
+#define QCA955X_ETH_CFG_RXD_DELAY BIT(14)
+#define QCA955X_ETH_CFG_RXD_DELAY_MASK 0x3
+#define QCA955X_ETH_CFG_RXD_DELAY_SHIFT 14
+#define QCA955X_ETH_CFG_RDV_DELAY BIT(16)
+#define QCA955X_ETH_CFG_RDV_DELAY_MASK 0x3
+#define QCA955X_ETH_CFG_RDV_DELAY_SHIFT 16

 #endif /* __ASM_MACH_AR71XX_REGS_H */
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.infradead.org/pipermail/openwrt-devel/attachments/20150917/05556f20/attachment.htm>
-------------- next part --------------
_______________________________________________
openwrt-devel mailing list
openwrt-devel at lists.openwrt.org
https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-devel