summaryrefslogtreecommitdiffstats
path: root/drivers/marvell/comphy/phy-comphy-common.h
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/marvell/comphy/phy-comphy-common.h')
-rw-r--r--drivers/marvell/comphy/phy-comphy-common.h167
1 files changed, 167 insertions, 0 deletions
diff --git a/drivers/marvell/comphy/phy-comphy-common.h b/drivers/marvell/comphy/phy-comphy-common.h
new file mode 100644
index 0000000..ba5d255
--- /dev/null
+++ b/drivers/marvell/comphy/phy-comphy-common.h
@@ -0,0 +1,167 @@
+/*
+ * Copyright (C) 2018-2021 Marvell International Ltd.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ * https://spdx.org/licenses
+ */
+
+/* Marvell CP110 ana A3700 common */
+
+#ifndef PHY_COMPHY_COMMON_H
+#define PHY_COMPHY_COMMON_H
+
+/* #define DEBUG_COMPHY */
+#ifdef DEBUG_COMPHY
+#define debug(format...) printf(format)
+#else
+#define debug(format, arg...)
+#endif
+
+/* A lane is described by 4 fields:
+ * - bit 1~0 represent comphy polarity invert
+ * - bit 7~2 represent comphy speed
+ * - bit 11~8 represent unit index
+ * - bit 16~12 represent mode
+ * - bit 17 represent comphy indication of clock source
+ * - bit 20~18 represents pcie width (in case of pcie comphy config.)
+ * - bit 21 represents the source of the request (Linux/Bootloader),
+ * (reguired only for PCIe!)
+ * - bit 31~22 reserved
+ */
+
+#define COMPHY_INVERT_OFFSET 0
+#define COMPHY_INVERT_LEN 2
+#define COMPHY_INVERT_MASK COMPHY_MASK(COMPHY_INVERT_OFFSET, \
+ COMPHY_INVERT_LEN)
+#define COMPHY_SPEED_OFFSET (COMPHY_INVERT_OFFSET + COMPHY_INVERT_LEN)
+#define COMPHY_SPEED_LEN 6
+#define COMPHY_SPEED_MASK COMPHY_MASK(COMPHY_SPEED_OFFSET, \
+ COMPHY_SPEED_LEN)
+#define COMPHY_UNIT_ID_OFFSET (COMPHY_SPEED_OFFSET + COMPHY_SPEED_LEN)
+#define COMPHY_UNIT_ID_LEN 4
+#define COMPHY_UNIT_ID_MASK COMPHY_MASK(COMPHY_UNIT_ID_OFFSET, \
+ COMPHY_UNIT_ID_LEN)
+#define COMPHY_MODE_OFFSET (COMPHY_UNIT_ID_OFFSET + COMPHY_UNIT_ID_LEN)
+#define COMPHY_MODE_LEN 5
+#define COMPHY_MODE_MASK COMPHY_MASK(COMPHY_MODE_OFFSET, COMPHY_MODE_LEN)
+#define COMPHY_CLK_SRC_OFFSET (COMPHY_MODE_OFFSET + COMPHY_MODE_LEN)
+#define COMPHY_CLK_SRC_LEN 1
+#define COMPHY_CLK_SRC_MASK COMPHY_MASK(COMPHY_CLK_SRC_OFFSET, \
+ COMPHY_CLK_SRC_LEN)
+#define COMPHY_PCI_WIDTH_OFFSET (COMPHY_CLK_SRC_OFFSET + COMPHY_CLK_SRC_LEN)
+#define COMPHY_PCI_WIDTH_LEN 3
+#define COMPHY_PCI_WIDTH_MASK COMPHY_MASK(COMPHY_PCI_WIDTH_OFFSET, \
+ COMPHY_PCI_WIDTH_LEN)
+#define COMPHY_PCI_CALLER_OFFSET \
+ (COMPHY_PCI_WIDTH_OFFSET + COMPHY_PCI_WIDTH_LEN)
+#define COMPHY_PCI_CALLER_LEN 1
+#define COMPHY_PCI_CALLER_MASK COMPHY_MASK(COMPHY_PCI_CALLER_OFFSET, \
+ COMPHY_PCI_CALLER_LEN)
+
+#define COMPHY_MASK(offset, len) (((1 << (len)) - 1) << (offset))
+
+/* Macro which extracts mode from lane description */
+#define COMPHY_GET_MODE(x) (((x) & COMPHY_MODE_MASK) >> \
+ COMPHY_MODE_OFFSET)
+/* Macro which extracts unit index from lane description */
+#define COMPHY_GET_ID(x) (((x) & COMPHY_UNIT_ID_MASK) >> \
+ COMPHY_UNIT_ID_OFFSET)
+/* Macro which extracts speed from lane description */
+#define COMPHY_GET_SPEED(x) (((x) & COMPHY_SPEED_MASK) >> \
+ COMPHY_SPEED_OFFSET)
+/* Macro which extracts clock source indication from lane description */
+#define COMPHY_GET_CLK_SRC(x) (((x) & COMPHY_CLK_SRC_MASK) >> \
+ COMPHY_CLK_SRC_OFFSET)
+/* Macro which extracts pcie width indication from lane description */
+#define COMPHY_GET_PCIE_WIDTH(x) (((x) & COMPHY_PCI_WIDTH_MASK) >> \
+ COMPHY_PCI_WIDTH_OFFSET)
+
+/* Macro which extracts the caller for pcie power on from lane description */
+#define COMPHY_GET_CALLER(x) (((x) & COMPHY_PCI_CALLER_MASK) >> \
+ COMPHY_PCI_CALLER_OFFSET)
+
+/* Macro which extracts the polarity invert from lane description */
+#define COMPHY_GET_POLARITY_INVERT(x) (((x) & COMPHY_INVERT_MASK) >> \
+ COMPHY_INVERT_OFFSET)
+
+
+#define COMPHY_SATA_MODE 0x1
+#define COMPHY_SGMII_MODE 0x2 /* SGMII 1G */
+#define COMPHY_2500BASEX_MODE 0x3 /* 2500Base-X */
+#define COMPHY_USB3H_MODE 0x4
+#define COMPHY_USB3D_MODE 0x5
+#define COMPHY_PCIE_MODE 0x6
+#define COMPHY_RXAUI_MODE 0x7
+#define COMPHY_XFI_MODE 0x8
+#define COMPHY_SFI_MODE 0x9
+#define COMPHY_USB3_MODE 0xa
+#define COMPHY_AP_MODE 0xb
+
+#define COMPHY_UNUSED 0xFFFFFFFF
+
+/* Polarity invert macro */
+#define COMPHY_POLARITY_NO_INVERT 0
+#define COMPHY_POLARITY_TXD_INVERT 1
+#define COMPHY_POLARITY_RXD_INVERT 2
+#define COMPHY_POLARITY_ALL_INVERT (COMPHY_POLARITY_TXD_INVERT | \
+ COMPHY_POLARITY_RXD_INVERT)
+
+enum reg_width_type {
+ REG_16BIT = 0,
+ REG_32BIT,
+};
+
+enum {
+ COMPHY_LANE0 = 0,
+ COMPHY_LANE1,
+ COMPHY_LANE2,
+ COMPHY_LANE3,
+ COMPHY_LANE4,
+ COMPHY_LANE5,
+ COMPHY_LANE_MAX,
+};
+
+static inline uint32_t polling_with_timeout(uintptr_t addr, uint32_t val,
+ uint32_t mask,
+ uint32_t usec_timeout,
+ enum reg_width_type type)
+{
+ uint32_t data;
+
+ do {
+ udelay(1);
+ if (type == REG_16BIT)
+ data = mmio_read_16(addr) & mask;
+ else
+ data = mmio_read_32(addr) & mask;
+ } while (data != val && --usec_timeout > 0);
+
+ if (usec_timeout == 0)
+ return data;
+
+ return 0;
+}
+
+static inline void reg_set(uintptr_t addr, uint32_t data, uint32_t mask)
+{
+ debug("<atf>: WR to addr = 0x%lx, data = 0x%x (mask = 0x%x) - ",
+ addr, data, mask);
+ debug("old value = 0x%x ==> ", mmio_read_32(addr));
+ mmio_clrsetbits_32(addr, mask, data & mask);
+
+ debug("new val 0x%x\n", mmio_read_32(addr));
+}
+
+static inline void __unused reg_set16(uintptr_t addr, uint16_t data,
+ uint16_t mask)
+{
+
+ debug("<atf>: WR to addr = 0x%lx, data = 0x%x (mask = 0x%x) - ",
+ addr, data, mask);
+ debug("old value = 0x%x ==> ", mmio_read_16(addr));
+ mmio_clrsetbits_16(addr, mask, data & mask);
+
+ debug("new val 0x%x\n", mmio_read_16(addr));
+}
+
+#endif /* PHY_COMPHY_COMMON_H */