drivers/phy: Add Marvell SerDes / PHY drivers used on Armada 3k

This version is based on the Marvell U-Boot version with this patch
applied as latest patch:

Git ID 7f408573: "fix: comphy: cp110: add comphy initialization for usb
device mode" from 2016-07-05.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Nadav Haklai <nadavh@marvell.com>
Cc: Kostya Porotchkin <kostap@marvell.com>
Cc: Wilson Ding <dingwei@marvell.com>
Cc: Victor Gu <xigu@marvell.com>
Cc: Hua Jing <jinghua@marvell.com>
Cc: Terry Zhou <bjzhou@marvell.com>
Cc: Hanna Hawa <hannah@marvell.com>
Cc: Haim Boot <hayim@marvell.com>

1 files changed, 139 insertions, 0 deletions

diff --git a/drivers/phy/marvell/comphy.h b/drivers/phy/marvell/comphy.h
new file mode 100644
index 0000000000..5c50e9c103
--- /dev/null
+++ b/drivers/phy/marvell/comphy.h
@@ -0,0 +1,139 @@
+/*
+ * Copyright (C) 2015-2016 Marvell International Ltd.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef _COMPHY_H_
+#define _COMPHY_H_
+
+#include <dt-bindings/comphy/comphy_data.h>
+#include <fdtdec.h>
+
+#if defined(DEBUG)
+#define debug_enter()	printf("----> Enter %s\n", __func__);
+#define debug_exit()	printf("<---- Exit  %s\n", __func__);
+#else
+#define debug_enter()
+#define debug_exit()
+#endif
+
+/* COMPHY registers */
+#define COMMON_PHY_CFG1_REG			0x0
+#define COMMON_PHY_CFG1_PWR_UP_OFFSET		1
+#define COMMON_PHY_CFG1_PWR_UP_MASK		\
+	(0x1 << COMMON_PHY_CFG1_PWR_UP_OFFSET)
+#define COMMON_PHY_CFG1_PIPE_SELECT_OFFSET	2
+#define COMMON_PHY_CFG1_PIPE_SELECT_MASK	\
+	(0x1 << COMMON_PHY_CFG1_PIPE_SELECT_OFFSET)
+#define COMMON_PHY_CFG1_PWR_ON_RESET_OFFSET	13
+#define COMMON_PHY_CFG1_PWR_ON_RESET_MASK	\
+	(0x1 << COMMON_PHY_CFG1_PWR_ON_RESET_OFFSET)
+#define COMMON_PHY_CFG1_CORE_RSTN_OFFSET	14
+#define COMMON_PHY_CFG1_CORE_RSTN_MASK		\
+	(0x1 << COMMON_PHY_CFG1_CORE_RSTN_OFFSET)
+#define COMMON_PHY_PHY_MODE_OFFSET		15
+#define COMMON_PHY_PHY_MODE_MASK		\
+	(0x1 << COMMON_PHY_PHY_MODE_OFFSET)
+
+#define COMMON_PHY_CFG6_REG			0x14
+#define COMMON_PHY_CFG6_IF_40_SEL_OFFSET	18
+#define COMMON_PHY_CFG6_IF_40_SEL_MASK		\
+	(0x1 << COMMON_PHY_CFG6_IF_40_SEL_OFFSET)
+
+#define COMMON_SELECTOR_PHY_OFFSET		0x140
+#define COMMON_SELECTOR_PIPE_OFFSET		0x144
+
+#define COMMON_PHY_SD_CTRL1			0x148
+#define COMMON_PHY_SD_CTRL1_COMPHY_0_4_PORT_OFFSET	0
+#define COMMON_PHY_SD_CTRL1_COMPHY_0_4_PORT_MASK	0xFFFF
+#define COMMON_PHY_SD_CTRL1_PCIE_X4_EN_OFFSET	24
+#define COMMON_PHY_SD_CTRL1_PCIE_X4_EN_MASK	\
+	(0x1 << COMMON_PHY_SD_CTRL1_PCIE_X4_EN_OFFSET)
+#define COMMON_PHY_SD_CTRL1_PCIE_X2_EN_OFFSET	25
+#define COMMON_PHY_SD_CTRL1_PCIE_X2_EN_MASK	\
+	(0x1 << COMMON_PHY_SD_CTRL1_PCIE_X2_EN_OFFSET)
+#define COMMON_PHY_SD_CTRL1_RXAUI1_OFFSET	26
+#define COMMON_PHY_SD_CTRL1_RXAUI1_MASK		\
+	(0x1 << COMMON_PHY_SD_CTRL1_RXAUI1_OFFSET)
+#define COMMON_PHY_SD_CTRL1_RXAUI0_OFFSET	27
+#define COMMON_PHY_SD_CTRL1_RXAUI0_MASK		\
+	(0x1 << COMMON_PHY_SD_CTRL1_RXAUI0_OFFSET)
+
+#define DFX_DEV_GEN_CTRL12			(MVEBU_CP0_REGS_BASE + 0x400280)
+#define DFX_DEV_GEN_PCIE_CLK_SRC_OFFSET		7
+#define DFX_DEV_GEN_PCIE_CLK_SRC_MASK		\
+	(0x3 << DFX_DEV_GEN_PCIE_CLK_SRC_OFFSET)
+
+#define MAX_LANE_OPTIONS			10
+#define MAX_UTMI_PHY_COUNT			2
+
+struct comphy_mux_options {
+	u32 type;
+	u32 mux_value;
+};
+
+struct comphy_mux_data {
+	u32 max_lane_values;
+	struct comphy_mux_options mux_values[MAX_LANE_OPTIONS];
+};
+
+struct comphy_map {
+	u32 type;
+	u32 speed;
+	u32 invert;
+	bool clk_src;
+};
+
+struct chip_serdes_phy_config {
+	struct comphy_mux_data *mux_data;
+	int (*ptr_comphy_chip_init)(struct chip_serdes_phy_config *,
+				    struct comphy_map *);
+	void __iomem *comphy_base_addr;
+	void __iomem *hpipe3_base_addr;
+	u32 comphy_lanes_count;
+	u32 comphy_mux_bitcount;
+	u32 comphy_index;
+};
+
+/* Register helper functions */
+void reg_set(void __iomem *addr, u32 data, u32 mask);
+void reg_set_silent(void __iomem *addr, u32 data, u32 mask);
+void reg_set16(void __iomem *addr, u16 data, u16 mask);
+void reg_set_silent16(void __iomem *addr, u16 data, u16 mask);
+
+/* SoC specific init functions */
+#ifdef CONFIG_ARMADA_3700
+int comphy_a3700_init(struct chip_serdes_phy_config *ptr_chip_cfg,
+		      struct comphy_map *serdes_map);
+#else
+static inline int comphy_a3700_init(struct chip_serdes_phy_config *ptr_chip_cfg,
+				    struct comphy_map *serdes_map)
+{
+	/*
+	 * This function should never be called in this configuration, so
+	 * lets return an error here.
+	 */
+	return -1;
+}
+#endif
+int comphy_ap806_init(struct chip_serdes_phy_config *ptr_chip_cfg,
+		      struct comphy_map *serdes_map);
+int comphy_cp110_init(struct chip_serdes_phy_config *ptr_chip_cfg,
+		      struct comphy_map *serdes_map);
+
+void comphy_dedicated_phys_init(void);
+
+/* MUX function */
+void comphy_mux_init(struct chip_serdes_phy_config *ptr_chip_cfg,
+		     struct comphy_map *comphy_map_data,
+		     void __iomem *selector_base);
+
+void comphy_pcie_config_set(u32 comphy_max_count,
+			    struct comphy_map *serdes_map);
+void comphy_pcie_config_detect(u32 comphy_max_count,
+			       struct comphy_map *serdes_map);
+void comphy_pcie_unit_general_config(u32 pex_index);
+
+#endif /* _COMPHY_H_ */
+