@@ -53,4 +53,10 @@
#define CMU_CVBSPLL (0x00B8)
#define CMU_SSTSCLK (0x00C0)
+#define GPIO_MFP_PWM (0xE01B0000)
+#define MFP_CTL0 (GPIO_MFP_PWM + 0x40)
+#define MFP_CTL1 (GPIO_MFP_PWM + 0x44)
+#define MFP_CTL2 (GPIO_MFP_PWM + 0x48)
+#define MFP_CTL3 (GPIO_MFP_PWM + 0x4C)
+
#endif
@@ -218,6 +218,13 @@ config ETH_DESIGNWARE_SOCFPGA
Altera system manager to correctly interface with the PHY.
This code handles those SoC specifics.
+config ETH_DESIGNWARE_S700
+ bool "Actins S700 glue driver for Synopsys Designware Ethernet MAC"
+ depends on DM_ETH && ETH_DESIGNWARE
+ help
+ This provides glue layer to use Synopsys Designware Ethernet MAC
+ present on Actions S700 SoC.
+
config ETHOC
bool "OpenCores 10/100 Mbps Ethernet MAC"
help
@@ -17,6 +17,7 @@ obj-$(CONFIG_CS8900) += cs8900.o
obj-$(CONFIG_TULIP) += dc2114x.o
obj-$(CONFIG_ETH_DESIGNWARE) += designware.o
obj-$(CONFIG_ETH_DESIGNWARE_SOCFPGA) += dwmac_socfpga.o
+obj-$(CONFIG_ETH_DESIGNWARE_S700) += dwmac_s700.o
obj-$(CONFIG_DRIVER_DM9000) += dm9000x.o
obj-$(CONFIG_DNET) += dnet.o
obj-$(CONFIG_E1000) += e1000.o
new file mode 100644
@@ -0,0 +1,66 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2020 Amit Singh Tomar <amittomer25 at gmail.com>
+ *
+ * Actions DWMAC specific glue layer
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <dm.h>
+#include <clk.h>
+#include <phy.h>
+#include <regmap.h>
+#include <reset.h>
+#include <syscon.h>
+#include "designware.h"
+#include <asm/arch-owl/regs_s700.h>
+
+/* pin control for MAC */
+#define RMII_TXD01_MFP_CTL0 (0x0 << 16)
+#define RMII_RXD01_MFP_CTL0 (0x0 << 8)
+#define RMII_TXEN_TXER_MFP_CTL0 (0x0 << 13)
+#define RMII_REF_CLK_MFP_CTL0 (0x0 << 6)
+#define CLKO_25M_EN_MFP_CTL3 BIT(30)
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static void dwmac_board_setup(void)
+{
+ clrbits_le32(MFP_CTL0, (RMII_TXD01_MFP_CTL0 | RMII_RXD01_MFP_CTL0 |
+ RMII_TXEN_TXER_MFP_CTL0 | RMII_REF_CLK_MFP_CTL0));
+
+ setbits_le32(MFP_CTL3, CLKO_25M_EN_MFP_CTL3);
+}
+
+static int dwmac_s700_probe(struct udevice *dev)
+{
+ dwmac_board_setup();
+
+ /* This is undocumented, phy interface select register */
+ writel(0x4, 0xe024c0a0);
+
+ return designware_eth_probe(dev);
+}
+
+static int dwmac_s700_ofdata_to_platdata(struct udevice *dev)
+{
+ return designware_eth_ofdata_to_platdata(dev);
+}
+
+static const struct udevice_id dwmac_s700_ids[] = {
+ {.compatible = "actions,s700-ethernet"},
+ { }
+};
+
+U_BOOT_DRIVER(dwmac_s700) = {
+ .name = "dwmac_s700",
+ .id = UCLASS_ETH,
+ .of_match = dwmac_s700_ids,
+ .ofdata_to_platdata = dwmac_s700_ofdata_to_platdata,
+ .probe = dwmac_s700_probe,
+ .ops = &designware_eth_ops,
+ .priv_auto_alloc_size = sizeof(struct dw_eth_dev),
+ .platdata_auto_alloc_size = sizeof(struct eth_pdata),
+ .flags = DM_FLAG_ALLOC_PRIV_DMA,
+};
This patchs adds glue logic to enable designware mac present on Action Semi based S700 SoC, Configures SoC specific bits. It has been tested on Cubieboard7. Signed-off-by: Amit Singh Tomar <amittomer25 at gmail.com> --- Changes since v2: * Newly added patch, not there in v2/v1. --- arch/arm/include/asm/arch-owl/regs_s700.h | 6 +++ drivers/net/Kconfig | 7 ++++ drivers/net/Makefile | 1 + drivers/net/dwmac_s700.c | 66 +++++++++++++++++++++++++++++++ 4 files changed, 80 insertions(+) create mode 100644 drivers/net/dwmac_s700.c