--- /dev/null
+/*
+ * Copyright (C) 2018 Marvell International Ltd.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ * https://spdx.org/licenses
+ */
+
+/* MCI bus driver for Marvell ARMADA 8K and 8K+ SoCs */
+
+#include <debug.h>
+#include <delay_timer.h>
+#include <mmio.h>
+#include <mci.h>
+#include <mvebu.h>
+#include <mvebu_def.h>
+#include <plat_marvell.h>
+
+/* /HB /Units /Direct_regs /Direct regs
+ * /Configuration Register Write/Read Data Register
+ */
+#define MCI_WRITE_READ_DATA_REG(mci_index) \
+ MVEBU_MCI_REG_BASE_REMAP(mci_index)
+/* /HB /Units /Direct_regs /Direct regs
+ * /Configuration Register Access Command Register
+ */
+#define MCI_ACCESS_CMD_REG(mci_index) \
+ (MVEBU_MCI_REG_BASE_REMAP(mci_index) + 0x4)
+
+/* Access Command fields :
+ * bit[3:0] - Sub command: 1 => Peripheral Config Register Read,
+ * 0 => Peripheral Config Register Write,
+ * 2 => Peripheral Assign ID request,
+ * 3 => Circular Config Write
+ * bit[5] - 1 => Local (same chip access) 0 => Remote
+ * bit[15:8] - Destination hop ID. Put Global ID (GID) here (see scheme below).
+ * bit[23:22] - 0x3 IHB PHY REG address space, 0x0 IHB Controller space
+ * bit[21:16] - Low 6 bits of offset. Hight 2 bits are taken from bit[28:27]
+ * of IHB_PHY_CTRL
+ * (must be set before any PHY register access occurs):
+ * /IHB_REG /IHB_REGInterchip Hopping Bus Registers
+ * /IHB Version Control Register
+ *
+ * ixi_ihb_top IHB PHY
+ * AXI ----------------------------- -------------
+ * <--| axi_hb_top | ihb_pipe_top |-->| |
+ * -->| GID=1 | GID=0 |<--| |
+ * ----------------------------- -------------
+ */
+#define MCI_INDIRECT_CTRL_READ_CMD 0x1
+#define MCI_INDIRECT_CTRL_ASSIGN_CMD 0x2
+#define MCI_INDIRECT_CTRL_CIRCULAR_CMD 0x3
+#define MCI_INDIRECT_CTRL_LOCAL_PKT (1 << 5)
+#define MCI_INDIRECT_CTRL_CMD_DONE_OFFSET 6
+#define MCI_INDIRECT_CTRL_CMD_DONE \
+ (1 << MCI_INDIRECT_CTRL_CMD_DONE_OFFSET)
+#define MCI_INDIRECT_CTRL_DATA_READY_OFFSET 7
+#define MCI_INDIRECT_CTRL_DATA_READY \
+ (1 << MCI_INDIRECT_CTRL_DATA_READY_OFFSET)
+#define MCI_INDIRECT_CTRL_HOPID_OFFSET 8
+#define MCI_INDIRECT_CTRL_HOPID(id) \
+ (((id) & 0xFF) << MCI_INDIRECT_CTRL_HOPID_OFFSET)
+#define MCI_INDIRECT_CTRL_REG_CHIPID_OFFSET 16
+#define MCI_INDIRECT_REG_CTRL_ADDR(reg_num) \
+ (reg_num << MCI_INDIRECT_CTRL_REG_CHIPID_OFFSET)
+
+/* Hop ID values */
+#define GID_IHB_PIPE 0
+#define GID_AXI_HB 1
+#define GID_IHB_EXT 2
+
+#define MCI_DID_GLOBAL_ASSIGNMENT_REQUEST_REG 0x2
+/* Target MCi Local ID (LID, which is = self DID) */
+#define MCI_DID_GLOBAL_ASSIGN_REQ_MCI_LOCAL_ID(val) (((val) & 0xFF) << 16)
+/* Bits [15:8]: Number of MCis on chip of target MCi */
+#define MCI_DID_GLOBAL_ASSIGN_REQ_MCI_COUNT(val) (((val) & 0xFF) << 8)
+/* Bits [7:0]: Number of hops on chip of target MCi */
+#define MCI_DID_GLOBAL_ASSIGN_REQ_HOPS_NUM(val) (((val) & 0xFF) << 0)
+
+/* IHB_REG domain registers */
+/* /HB /Units /IHB_REG /IHB_REGInterchip Hopping Bus Registers/
+ * Rx Memory Configuration Register (RX_MEM_CFG)
+ */
+#define MCI_CTRL_RX_MEM_CFG_REG_NUM 0x0
+#define MCI_CTRL_RX_TX_MEM_CFG_RQ_THRESH(val) (((val) & 0xFF) << 24)
+#define MCI_CTRL_RX_TX_MEM_CFG_PQ_THRESH(val) (((val) & 0xFF) << 16)
+#define MCI_CTRL_RX_TX_MEM_CFG_NQ_THRESH(val) (((val) & 0xFF) << 8)
+#define MCI_CTRL_RX_TX_MEM_CFG_DELTA_THRESH(val) (((val) & 0xF) << 4)
+#define MCI_CTRL_RX_TX_MEM_CFG_RTC(val) (((val) & 0x3) << 2)
+#define MCI_CTRL_RX_TX_MEM_CFG_WTC(val) (((val) & 0x3) << 0)
+#define MCI_CTRL_RX_MEM_CFG_REG_DEF_CP_VAL \
+ (MCI_CTRL_RX_TX_MEM_CFG_RQ_THRESH(0x07) | \
+ MCI_CTRL_RX_TX_MEM_CFG_PQ_THRESH(0x3f) | \
+ MCI_CTRL_RX_TX_MEM_CFG_NQ_THRESH(0x3f) | \
+ MCI_CTRL_RX_TX_MEM_CFG_DELTA_THRESH(0xf) | \
+ MCI_CTRL_RX_TX_MEM_CFG_RTC(1) | \
+ MCI_CTRL_RX_TX_MEM_CFG_WTC(1))
+
+#define MCI_CTRL_RX_MEM_CFG_REG_DEF_AP_VAL \
+ (MCI_CTRL_RX_TX_MEM_CFG_RQ_THRESH(0x3f) | \
+ MCI_CTRL_RX_TX_MEM_CFG_PQ_THRESH(0x03) | \
+ MCI_CTRL_RX_TX_MEM_CFG_NQ_THRESH(0x3f) | \
+ MCI_CTRL_RX_TX_MEM_CFG_DELTA_THRESH(0xf) | \
+ MCI_CTRL_RX_TX_MEM_CFG_RTC(1) | \
+ MCI_CTRL_RX_TX_MEM_CFG_WTC(1))
+
+
+/* /HB /Units /IHB_REG /IHB_REGInterchip Hopping Bus Registers/
+ * Tx Memory Configuration Register (TX_MEM_CFG)
+ */
+#define MCI_CTRL_TX_MEM_CFG_REG_NUM 0x1
+/* field mapping for TX mem config register
+ * are the same as for RX register - see register above
+ */
+#define MCI_CTRL_TX_MEM_CFG_REG_DEF_VAL \
+ (MCI_CTRL_RX_TX_MEM_CFG_RQ_THRESH(0x20) | \
+ MCI_CTRL_RX_TX_MEM_CFG_PQ_THRESH(0x20) | \
+ MCI_CTRL_RX_TX_MEM_CFG_NQ_THRESH(0x20) | \
+ MCI_CTRL_RX_TX_MEM_CFG_DELTA_THRESH(2) | \
+ MCI_CTRL_RX_TX_MEM_CFG_RTC(1) | \
+ MCI_CTRL_RX_TX_MEM_CFG_WTC(1))
+
+/* /HB /Units /IHB_REG /IHB_REGInterchip Hopping Bus Registers
+ * /IHB Link CRC Control
+ */
+/* MCi Link CRC Control Register (MCi_CRC_CTRL) */
+#define MCI_LINK_CRC_CTRL_REG_NUM 0x4
+
+/* /HB /Units /IHB_REG /IHB_REGInterchip Hopping Bus Registers
+ * /IHB Status Register
+ */
+/* MCi Status Register (MCi_STS) */
+#define MCI_CTRL_STATUS_REG_NUM 0x5
+#define MCI_CTRL_STATUS_REG_PHY_READY (1 << 12)
+#define MCI_CTRL_STATUS_REG_LINK_PRESENT (1 << 15)
+#define MCI_CTRL_STATUS_REG_PHY_CID_VIO_OFFSET 24
+#define MCI_CTRL_STATUS_REG_PHY_CID_VIO_MASK \
+ (0xF << MCI_CTRL_STATUS_REG_PHY_CID_VIO_OFFSET)
+/* Expected successful Link result, including reserved bit */
+#define MCI_CTRL_PHY_READY (MCI_CTRL_STATUS_REG_PHY_READY | \
+ MCI_CTRL_STATUS_REG_LINK_PRESENT | \
+ MCI_CTRL_STATUS_REG_PHY_CID_VIO_MASK)
+
+/* /HB /Units /IHB_REG /IHB_REGInterchip Hopping Bus Registers/
+ * MCi PHY Speed Settings Register (MCi_PHY_SETTING)
+ */
+#define MCI_CTRL_MCI_PHY_SETTINGS_REG_NUM 0x8
+#define MCI_CTRL_MCI_PHY_SET_DLO_FIFO_FULL_TRESH(val) (((val) & 0xF) << 28)
+#define MCI_CTRL_MCI_PHY_SET_PHY_MAX_SPEED(val) (((val) & 0xF) << 12)
+#define MCI_CTRL_MCI_PHY_SET_PHYCLK_SEL(val) (((val) & 0xF) << 8)
+#define MCI_CTRL_MCI_PHY_SET_REFCLK_FREQ_SEL(val) (((val) & 0xF) << 4)
+#define MCI_CTRL_MCI_PHY_SET_AUTO_LINK_EN(val) (((val) & 0x1) << 1)
+#define MCI_CTRL_MCI_PHY_SET_REG_DEF_VAL \
+ (MCI_CTRL_MCI_PHY_SET_DLO_FIFO_FULL_TRESH(0x3) | \
+ MCI_CTRL_MCI_PHY_SET_PHY_MAX_SPEED(0x3) | \
+ MCI_CTRL_MCI_PHY_SET_PHYCLK_SEL(0x2) | \
+ MCI_CTRL_MCI_PHY_SET_REFCLK_FREQ_SEL(0x1))
+#define MCI_CTRL_MCI_PHY_SET_REG_DEF_VAL2 \
+ (MCI_CTRL_MCI_PHY_SET_DLO_FIFO_FULL_TRESH(0x3) | \
+ MCI_CTRL_MCI_PHY_SET_PHY_MAX_SPEED(0x3) | \
+ MCI_CTRL_MCI_PHY_SET_PHYCLK_SEL(0x5) | \
+ MCI_CTRL_MCI_PHY_SET_REFCLK_FREQ_SEL(0x1))
+
+/* /HB /Units /IHB_REG /IHB_REGInterchip Hopping Bus Registers
+ * /IHB Mode Config
+ */
+#define MCI_CTRL_IHB_MODE_CFG_REG_NUM 0x25
+#define MCI_CTRL_IHB_MODE_HBCLK_DIV(val) ((val) & 0xFF)
+#define MCI_CTRL_IHB_MODE_CHUNK_MOD_OFFSET 8
+#define MCI_CTRL_IHB_MODE_CHUNK_MOD \
+ (1 << MCI_CTRL_IHB_MODE_CHUNK_MOD_OFFSET)
+#define MCI_CTRL_IHB_MODE_FWD_MOD_OFFSET 9
+#define MCI_CTRL_IHB_MODE_FWD_MOD \
+ (1 << MCI_CTRL_IHB_MODE_FWD_MOD_OFFSET)
+#define MCI_CTRL_IHB_MODE_SEQFF_FINE_MOD(val) (((val) & 0xF) << 12)
+#define MCI_CTRL_IHB_MODE_RX_COMB_THRESH(val) (((val) & 0xFF) << 16)
+#define MCI_CTRL_IHB_MODE_TX_COMB_THRESH(val) (((val) & 0xFF) << 24)
+
+#define MCI_CTRL_IHB_MODE_CFG_REG_DEF_VAL \
+ (MCI_CTRL_IHB_MODE_HBCLK_DIV(6) | \
+ MCI_CTRL_IHB_MODE_FWD_MOD | \
+ MCI_CTRL_IHB_MODE_SEQFF_FINE_MOD(0xF) | \
+ MCI_CTRL_IHB_MODE_RX_COMB_THRESH(0x3f) | \
+ MCI_CTRL_IHB_MODE_TX_COMB_THRESH(0x40))
+/* AXI_HB registers */
+#define MCI_AXI_ACCESS_DATA_REG_NUM 0x0
+#define MCI_AXI_ACCESS_PCIE_MODE 1
+#define MCI_AXI_ACCESS_CACHE_CHECK_OFFSET 5
+#define MCI_AXI_ACCESS_CACHE_CHECK \
+ (1 << MCI_AXI_ACCESS_CACHE_CHECK_OFFSET)
+#define MCI_AXI_ACCESS_FORCE_POST_WR_OFFSET 6
+#define MCI_AXI_ACCESS_FORCE_POST_WR \
+ (1 << MCI_AXI_ACCESS_FORCE_POST_WR_OFFSET)
+#define MCI_AXI_ACCESS_DISABLE_CLK_GATING_OFFSET 9
+#define MCI_AXI_ACCESS_DISABLE_CLK_GATING \
+ (1 << MCI_AXI_ACCESS_DISABLE_CLK_GATING_OFFSET)
+
+/* /HB /Units /HB_REG /HB_REGHopping Bus Registers
+ * /Window 0 Address Mask Register
+ */
+#define MCI_HB_CTRL_WIN0_ADDRESS_MASK_REG_NUM 0x2
+
+/* /HB /Units /HB_REG /HB_REGHopping Bus Registers
+ * /Window 0 Destination Register
+ */
+#define MCI_HB_CTRL_WIN0_DESTINATION_REG_NUM 0x3
+#define MCI_HB_CTRL_WIN0_DEST_VALID_FLAG(val) (((val) & 0x1) << 16)
+#define MCI_HB_CTRL_WIN0_DEST_ID(val) (((val) & 0xFF) << 0)
+
+/* /HB /Units /HB_REG /HB_REGHopping Bus Registers /Tx Control Register */
+#define MCI_HB_CTRL_TX_CTRL_REG_NUM 0xD
+#define MCI_HB_CTRL_TX_CTRL_PCIE_MODE_OFFSET 24
+#define MCI_HB_CTRL_TX_CTRL_PCIE_MODE \
+ (1 << MCI_HB_CTRL_TX_CTRL_PCIE_MODE_OFFSET)
+#define MCI_HB_CTRL_TX_CTRL_PRI_TH_QOS(val) (((val) & 0xF) << 12)
+#define MCI_HB_CTRL_TX_CTRL_MAX_RD_CNT(val) (((val) & 0x1F) << 6)
+#define MCI_HB_CTRL_TX_CTRL_MAX_WR_CNT(val) (((val) & 0x1F) << 0)
+
+/* /HB /Units /IHB_REG /IHB_REGInterchip Hopping Bus Registers
+ * /IHB Version Control Register
+ */
+#define MCI_PHY_CTRL_REG_NUM 0x7
+#define MCI_PHY_CTRL_MCI_MINOR 0x8 /* BITS [3:0] */
+#define MCI_PHY_CTRL_MCI_MAJOR_OFFSET 4
+#define MCI_PHY_CTRL_MCI_MAJOR \
+ (1 << MCI_PHY_CTRL_MCI_MAJOR_OFFSET)
+#define MCI_PHY_CTRL_MCI_SLEEP_REQ_OFFSET 11
+#define MCI_PHY_CTRL_MCI_SLEEP_REQ \
+ (1 << MCI_PHY_CTRL_MCI_SLEEP_REQ_OFFSET)
+/* Host=1 / Device=0 PHY mode */
+#define MCI_PHY_CTRL_MCI_PHY_MODE_OFFSET 24
+#define MCI_PHY_CTRL_MCI_PHY_MODE_HOST \
+ (1 << MCI_PHY_CTRL_MCI_PHY_MODE_OFFSET)
+/* Register=1 / PWM=0 interface */
+#define MCI_PHY_CTRL_MCI_PHY_REG_IF_MODE_OFFSET 25
+#define MCI_PHY_CTRL_MCI_PHY_REG_IF_MODE \
+ (1 << MCI_PHY_CTRL_MCI_PHY_REG_IF_MODE_OFFSET)
+ /* PHY code InReset=1 */
+#define MCI_PHY_CTRL_MCI_PHY_RESET_CORE_OFFSET 26
+#define MCI_PHY_CTRL_MCI_PHY_RESET_CORE \
+ (1 << MCI_PHY_CTRL_MCI_PHY_RESET_CORE_OFFSET)
+#define MCI_PHY_CTRL_PHY_ADDR_MSB_OFFSET 27
+#define MCI_PHY_CTRL_PHY_ADDR_MSB(addr) \
+ (((addr) & 0x3) << \
+ MCI_PHY_CTRL_PHY_ADDR_MSB_OFFSET)
+#define MCI_PHY_CTRL_PIDI_MODE_OFFSET 31
+#define MCI_PHY_CTRL_PIDI_MODE \
+ (1 << MCI_PHY_CTRL_PIDI_MODE_OFFSET)
+
+/* Number of times to wait for the MCI link ready after MCI configurations
+ * Normally takes 34-35 successive reads
+ */
+#define LINK_READY_TIMEOUT 100
+
+enum mci_register_type {
+ MCI_REG_TYPE_PHY = 0,
+ MCI_REG_TYPE_CTRL,
+};
+
+enum {
+ MCI_CMD_WRITE,
+ MCI_CMD_READ
+};
+
+/* Write wrapper callback for debug:
+ * will print written data in case LOG_LEVEL >= 40
+ */
+static void mci_mmio_write_32(uintptr_t addr, uint32_t value)
+{
+ VERBOSE("Write:\t0x%x = 0x%x\n", (uint32_t)addr, value);
+ mmio_write_32(addr, value);
+}
+/* Read wrapper callback for debug:
+ * will print read data in case LOG_LEVEL >= 40
+ */
+static uint32_t mci_mmio_read_32(uintptr_t addr)
+{
+ uint32_t value;
+
+ value = mmio_read_32(addr);
+ VERBOSE("Read:\t0x%x = 0x%x\n", (uint32_t)addr, value);
+ return value;
+}
+
+/* MCI indirect access command completion polling:
+ * Each write/read command done via MCI indirect registers must be polled
+ * for command completions status.
+ *
+ * Returns 1 in case of error
+ * Returns 0 in case of command completed successfully.
+ */
+static int mci_poll_command_completion(int mci_index, int command_type)
+{
+ uint32_t mci_cmd_value = 0, retry_count = 100, ret = 0;
+ uint32_t completion_flags = MCI_INDIRECT_CTRL_CMD_DONE;
+
+ debug_enter();
+ /* Read commands require validating that requested data is ready */
+ if (command_type == MCI_CMD_READ)
+ completion_flags |= MCI_INDIRECT_CTRL_DATA_READY;
+
+ do {
+ /* wait 1 ms before each polling */
+ mdelay(1);
+ mci_cmd_value = mci_mmio_read_32(MCI_ACCESS_CMD_REG(mci_index));
+ } while (((mci_cmd_value & completion_flags) != completion_flags) &&
+ (retry_count-- > 0));
+
+ if (retry_count == 0) {
+ ERROR("%s: MCI command timeout (command status = 0x%x)\n",
+ __func__, mci_cmd_value);
+ ret = 1;
+ }
+
+ debug_exit();
+ return ret;
+}
+
+int mci_read(int mci_idx, uint32_t cmd, uint32_t *value)
+{
+ int rval;
+
+ mci_mmio_write_32(MCI_ACCESS_CMD_REG(mci_idx), cmd);
+
+ rval = mci_poll_command_completion(mci_idx, MCI_CMD_READ);
+
+ *value = mci_mmio_read_32(MCI_WRITE_READ_DATA_REG(mci_idx));
+
+ return rval;
+}
+
+int mci_write(int mci_idx, uint32_t cmd, uint32_t data)
+{
+ mci_mmio_write_32(MCI_WRITE_READ_DATA_REG(mci_idx), data);
+ mci_mmio_write_32(MCI_ACCESS_CMD_REG(mci_idx), cmd);
+
+ return mci_poll_command_completion(mci_idx, MCI_CMD_WRITE);
+}
+
+/* Perform 3 configurations in one command: PCI mode,
+ * queues separation and cache bit
+ */
+static int mci_axi_set_pcie_mode(int mci_index)
+{
+ uint32_t reg_data, ret = 1;
+
+ debug_enter();
+ /* This configuration makes MCI IP behave consistently with AXI protocol
+ * It should be configured at one side only (for example locally at AP).
+ * The IP takes care of performing the same configurations at MCI on
+ * another side (for example remotely at CP).
+ */
+ mci_mmio_write_32(MCI_WRITE_READ_DATA_REG(mci_index),
+ MCI_AXI_ACCESS_PCIE_MODE |
+ MCI_AXI_ACCESS_CACHE_CHECK |
+ MCI_AXI_ACCESS_FORCE_POST_WR |
+ MCI_AXI_ACCESS_DISABLE_CLK_GATING);
+ mci_mmio_write_32(MCI_ACCESS_CMD_REG(mci_index),
+ MCI_INDIRECT_REG_CTRL_ADDR(
+ MCI_AXI_ACCESS_DATA_REG_NUM) |
+ MCI_INDIRECT_CTRL_HOPID(GID_AXI_HB) |
+ MCI_INDIRECT_CTRL_LOCAL_PKT |
+ MCI_INDIRECT_CTRL_CIRCULAR_CMD);
+
+ /* if Write command was successful, verify PCIe mode */
+ if (mci_poll_command_completion(mci_index, MCI_CMD_WRITE) == 0) {
+ /* Verify the PCIe mode selected */
+ mci_mmio_write_32(MCI_ACCESS_CMD_REG(mci_index),
+ MCI_INDIRECT_REG_CTRL_ADDR(
+ MCI_HB_CTRL_TX_CTRL_REG_NUM) |
+ MCI_INDIRECT_CTRL_HOPID(GID_AXI_HB) |
+ MCI_INDIRECT_CTRL_LOCAL_PKT |
+ MCI_INDIRECT_CTRL_READ_CMD);
+ /* if read was completed, verify PCIe mode */
+ if (mci_poll_command_completion(mci_index, MCI_CMD_READ) == 0) {
+ reg_data = mci_mmio_read_32(
+ MCI_WRITE_READ_DATA_REG(mci_index));
+ if (reg_data & MCI_HB_CTRL_TX_CTRL_PCIE_MODE)
+ ret = 0;
+ }
+ }
+
+ debug_exit();
+ return ret;
+}
+
+/* Reduce sequence FIFO timer expiration threshold */
+static int mci_axi_set_fifo_thresh(int mci_index)
+{
+ uint32_t reg_data, ret = 0;
+
+ debug_enter();
+ /* This configuration reduces sequence FIFO timer expiration threshold
+ * (to 0x7 instead of 0xA).
+ * In MCI 1.6 version this configuration prevents possible functional
+ * issues.
+ * In version 1.82 the configuration prevents performance degradation
+ */
+
+ /* Configure local AP side */
+ reg_data = MCI_PHY_CTRL_PIDI_MODE |
+ MCI_PHY_CTRL_MCI_PHY_REG_IF_MODE |
+ MCI_PHY_CTRL_MCI_PHY_MODE_HOST |
+ MCI_PHY_CTRL_MCI_MAJOR |
+ MCI_PHY_CTRL_MCI_MINOR;
+ mci_mmio_write_32(MCI_WRITE_READ_DATA_REG(mci_index), reg_data);
+ mci_mmio_write_32(MCI_ACCESS_CMD_REG(mci_index),
+ MCI_INDIRECT_REG_CTRL_ADDR(MCI_PHY_CTRL_REG_NUM) |
+ MCI_INDIRECT_CTRL_LOCAL_PKT);
+ ret |= mci_poll_command_completion(mci_index, MCI_CMD_WRITE);
+
+ /* Reduce the threshold */
+ mci_mmio_write_32(MCI_WRITE_READ_DATA_REG(mci_index),
+ MCI_CTRL_IHB_MODE_CFG_REG_DEF_VAL);
+
+ mci_mmio_write_32(MCI_ACCESS_CMD_REG(mci_index),
+ MCI_INDIRECT_REG_CTRL_ADDR(
+ MCI_CTRL_IHB_MODE_CFG_REG_NUM) |
+ MCI_INDIRECT_CTRL_LOCAL_PKT);
+ ret |= mci_poll_command_completion(mci_index, MCI_CMD_WRITE);
+
+ /* Exit PIDI mode */
+ reg_data = MCI_PHY_CTRL_MCI_PHY_REG_IF_MODE |
+ MCI_PHY_CTRL_MCI_PHY_MODE_HOST |
+ MCI_PHY_CTRL_MCI_MAJOR |
+ MCI_PHY_CTRL_MCI_MINOR;
+ mci_mmio_write_32(MCI_WRITE_READ_DATA_REG(mci_index), reg_data);
+ mci_mmio_write_32(MCI_ACCESS_CMD_REG(mci_index),
+ MCI_INDIRECT_REG_CTRL_ADDR(MCI_PHY_CTRL_REG_NUM) |
+ MCI_INDIRECT_CTRL_LOCAL_PKT);
+ ret |= mci_poll_command_completion(mci_index, MCI_CMD_WRITE);
+
+ /* Configure remote CP side */
+ reg_data = MCI_PHY_CTRL_PIDI_MODE |
+ MCI_PHY_CTRL_MCI_MAJOR |
+ MCI_PHY_CTRL_MCI_MINOR |
+ MCI_PHY_CTRL_MCI_PHY_REG_IF_MODE;
+ mci_mmio_write_32(MCI_WRITE_READ_DATA_REG(mci_index), reg_data);
+ mci_mmio_write_32(MCI_ACCESS_CMD_REG(mci_index),
+ MCI_INDIRECT_REG_CTRL_ADDR(MCI_PHY_CTRL_REG_NUM) |
+ MCI_CTRL_IHB_MODE_FWD_MOD);
+ ret |= mci_poll_command_completion(mci_index, MCI_CMD_WRITE);
+
+ /* Reduce the threshold */
+ mci_mmio_write_32(MCI_WRITE_READ_DATA_REG(mci_index),
+ MCI_CTRL_IHB_MODE_CFG_REG_DEF_VAL);
+ mci_mmio_write_32(MCI_ACCESS_CMD_REG(mci_index),
+ MCI_INDIRECT_REG_CTRL_ADDR(
+ MCI_CTRL_IHB_MODE_CFG_REG_NUM) |
+ MCI_INDIRECT_CTRL_HOPID(GID_IHB_EXT));
+ ret |= mci_poll_command_completion(mci_index, MCI_CMD_WRITE);
+
+ /* Exit PIDI mode */
+ reg_data = MCI_PHY_CTRL_MCI_MAJOR |
+ MCI_PHY_CTRL_MCI_MINOR |
+ MCI_PHY_CTRL_MCI_PHY_REG_IF_MODE;
+ mci_mmio_write_32(MCI_WRITE_READ_DATA_REG(mci_index), reg_data);
+ mci_mmio_write_32(MCI_ACCESS_CMD_REG(mci_index),
+ MCI_INDIRECT_REG_CTRL_ADDR(MCI_PHY_CTRL_REG_NUM) |
+ MCI_CTRL_IHB_MODE_FWD_MOD);
+
+ ret |= mci_poll_command_completion(mci_index, MCI_CMD_WRITE);
+
+ debug_exit();
+ return ret;
+}
+
+/* Configure:
+ * 1. AP & CP TX thresholds and delta configurations
+ * 2. DLO & DLI FIFO full threshold
+ * 3. RX thresholds and delta configurations
+ * 4. CP AR and AW outstanding
+ * 5. AP AR and AW outstanding
+ */
+static int mci_axi_set_fifo_rx_tx_thresh(int mci_index)
+{
+ uint32_t ret = 0;
+
+ debug_enter();
+ /* AP TX thresholds and delta configurations (IHB_reg 0x1) */
+ mci_mmio_write_32(MCI_WRITE_READ_DATA_REG(mci_index),
+ MCI_CTRL_TX_MEM_CFG_REG_DEF_VAL);
+ mci_mmio_write_32(MCI_ACCESS_CMD_REG(mci_index),
+ MCI_INDIRECT_REG_CTRL_ADDR(
+ MCI_CTRL_TX_MEM_CFG_REG_NUM) |
+ MCI_INDIRECT_CTRL_LOCAL_PKT);
+ ret |= mci_poll_command_completion(mci_index, MCI_CMD_WRITE);
+
+ /* CP TX thresholds and delta configurations (IHB_reg 0x1) */
+ mci_mmio_write_32(MCI_WRITE_READ_DATA_REG(mci_index),
+ MCI_CTRL_TX_MEM_CFG_REG_DEF_VAL);
+ mci_mmio_write_32(MCI_ACCESS_CMD_REG(mci_index),
+ MCI_INDIRECT_REG_CTRL_ADDR(
+ MCI_CTRL_TX_MEM_CFG_REG_NUM) |
+ MCI_INDIRECT_CTRL_HOPID(GID_IHB_EXT));
+ ret |= mci_poll_command_completion(mci_index, MCI_CMD_WRITE);
+
+ /* AP DLO & DLI FIFO full threshold & Auto-Link enable (IHB_reg 0x8) */
+ mci_mmio_write_32(MCI_WRITE_READ_DATA_REG(mci_index),
+ MCI_CTRL_MCI_PHY_SET_REG_DEF_VAL |
+ MCI_CTRL_MCI_PHY_SET_AUTO_LINK_EN(1));
+ mci_mmio_write_32(MCI_ACCESS_CMD_REG(mci_index),
+ MCI_INDIRECT_REG_CTRL_ADDR(
+ MCI_CTRL_MCI_PHY_SETTINGS_REG_NUM) |
+ MCI_INDIRECT_CTRL_LOCAL_PKT);
+ ret |= mci_poll_command_completion(mci_index, MCI_CMD_WRITE);
+
+ /* CP DLO & DLI FIFO full threshold (IHB_reg 0x8) */
+ mci_mmio_write_32(MCI_WRITE_READ_DATA_REG(mci_index),
+ MCI_CTRL_MCI_PHY_SET_REG_DEF_VAL);
+ mci_mmio_write_32(MCI_ACCESS_CMD_REG(mci_index),
+ MCI_INDIRECT_REG_CTRL_ADDR(
+ MCI_CTRL_MCI_PHY_SETTINGS_REG_NUM) |
+ MCI_INDIRECT_CTRL_HOPID(GID_IHB_EXT));
+ ret |= mci_poll_command_completion(mci_index, MCI_CMD_WRITE);
+
+ /* AP RX thresholds and delta configurations (IHB_reg 0x0) */
+ mci_mmio_write_32(MCI_WRITE_READ_DATA_REG(mci_index),
+ MCI_CTRL_RX_MEM_CFG_REG_DEF_AP_VAL);
+ mci_mmio_write_32(MCI_ACCESS_CMD_REG(mci_index),
+ MCI_INDIRECT_REG_CTRL_ADDR(
+ MCI_CTRL_RX_MEM_CFG_REG_NUM) |
+ MCI_INDIRECT_CTRL_LOCAL_PKT);
+ ret |= mci_poll_command_completion(mci_index, MCI_CMD_WRITE);
+
+ /* CP RX thresholds and delta configurations (IHB_reg 0x0) */
+ mci_mmio_write_32(MCI_WRITE_READ_DATA_REG(mci_index),
+ MCI_CTRL_RX_MEM_CFG_REG_DEF_CP_VAL);
+ mci_mmio_write_32(MCI_ACCESS_CMD_REG(mci_index),
+ MCI_INDIRECT_REG_CTRL_ADDR(
+ MCI_CTRL_RX_MEM_CFG_REG_NUM) |
+ MCI_INDIRECT_CTRL_HOPID(GID_IHB_EXT));
+ ret |= mci_poll_command_completion(mci_index, MCI_CMD_WRITE);
+
+ /* AP AR & AW maximum AXI outstanding request cfg (HB_reg 0xd) */
+ mci_mmio_write_32(MCI_WRITE_READ_DATA_REG(mci_index),
+ MCI_HB_CTRL_TX_CTRL_PRI_TH_QOS(8) |
+ MCI_HB_CTRL_TX_CTRL_MAX_RD_CNT(3) |
+ MCI_HB_CTRL_TX_CTRL_MAX_WR_CNT(3));
+ mci_mmio_write_32(MCI_ACCESS_CMD_REG(mci_index),
+ MCI_INDIRECT_REG_CTRL_ADDR(
+ MCI_HB_CTRL_TX_CTRL_REG_NUM) |
+ MCI_INDIRECT_CTRL_HOPID(GID_AXI_HB) |
+ MCI_INDIRECT_CTRL_LOCAL_PKT);
+ ret |= mci_poll_command_completion(mci_index, MCI_CMD_WRITE);
+
+ /* CP AR & AW maximum AXI outstanding request cfg (HB_reg 0xd) */
+ mci_mmio_write_32(MCI_WRITE_READ_DATA_REG(mci_index),
+ MCI_HB_CTRL_TX_CTRL_PRI_TH_QOS(8) |
+ MCI_HB_CTRL_TX_CTRL_MAX_RD_CNT(0xB) |
+ MCI_HB_CTRL_TX_CTRL_MAX_WR_CNT(0x11));
+ mci_mmio_write_32(MCI_ACCESS_CMD_REG(mci_index),
+ MCI_INDIRECT_REG_CTRL_ADDR(
+ MCI_HB_CTRL_TX_CTRL_REG_NUM) |
+ MCI_INDIRECT_CTRL_HOPID(GID_IHB_EXT) |
+ MCI_INDIRECT_CTRL_HOPID(GID_AXI_HB));
+ ret |= mci_poll_command_completion(mci_index, MCI_CMD_WRITE);
+
+ debug_exit();
+ return ret;
+}
+
+/* configure MCI to allow read & write transactions to arrive at the same time.
+ * Without the below configuration, MCI won't sent response to CPU for
+ * transactions which arrived simultaneously and will lead to CPU hang.
+ * The below will configure MCI to be able to pass transactions from/to CP/AP.
+ */
+static int mci_enable_simultaneous_transactions(int mci_index)
+{
+ uint32_t ret = 0;
+
+ debug_enter();
+ /* ID assignment (assigning global ID offset to CP) */
+ mci_mmio_write_32(MCI_WRITE_READ_DATA_REG(0),
+ MCI_DID_GLOBAL_ASSIGN_REQ_MCI_LOCAL_ID(2) |
+ MCI_DID_GLOBAL_ASSIGN_REQ_MCI_COUNT(2) |
+ MCI_DID_GLOBAL_ASSIGN_REQ_HOPS_NUM(2));
+ mci_mmio_write_32(MCI_ACCESS_CMD_REG(0),
+ MCI_INDIRECT_REG_CTRL_ADDR(
+ MCI_DID_GLOBAL_ASSIGNMENT_REQUEST_REG) |
+ MCI_INDIRECT_CTRL_ASSIGN_CMD);
+ ret |= mci_poll_command_completion(mci_index, MCI_CMD_WRITE);
+
+ /* Assigning dest. ID=3 to all transactions entering from AXI at AP */
+ mci_mmio_write_32(MCI_WRITE_READ_DATA_REG(0),
+ MCI_HB_CTRL_WIN0_DEST_VALID_FLAG(1) |
+ MCI_HB_CTRL_WIN0_DEST_ID(3));
+ mci_mmio_write_32(MCI_ACCESS_CMD_REG(0),
+ MCI_INDIRECT_REG_CTRL_ADDR(
+ MCI_HB_CTRL_WIN0_DESTINATION_REG_NUM) |
+ MCI_INDIRECT_CTRL_HOPID(GID_AXI_HB) |
+ MCI_INDIRECT_CTRL_LOCAL_PKT);
+ ret |= mci_poll_command_completion(mci_index, MCI_CMD_WRITE);
+
+ /* Assigning dest. ID=1 to all transactions entering from AXI at CP */
+ mci_mmio_write_32(MCI_WRITE_READ_DATA_REG(0),
+ MCI_HB_CTRL_WIN0_DEST_VALID_FLAG(1) |
+ MCI_HB_CTRL_WIN0_DEST_ID(1));
+ mci_mmio_write_32(MCI_ACCESS_CMD_REG(0),
+ MCI_INDIRECT_REG_CTRL_ADDR(
+ MCI_HB_CTRL_WIN0_DESTINATION_REG_NUM) |
+ MCI_INDIRECT_CTRL_HOPID(GID_IHB_EXT) |
+ MCI_INDIRECT_CTRL_HOPID(GID_AXI_HB));
+ ret |= mci_poll_command_completion(mci_index, MCI_CMD_WRITE);
+
+ /* End address to all transactions entering from AXI at AP.
+ * This will lead to get match for any AXI address
+ * and receive destination ID=3
+ */
+ mci_mmio_write_32(MCI_WRITE_READ_DATA_REG(0), 0xffffffff);
+ mci_mmio_write_32(MCI_ACCESS_CMD_REG(0),
+ MCI_INDIRECT_REG_CTRL_ADDR(
+ MCI_HB_CTRL_WIN0_ADDRESS_MASK_REG_NUM) |
+ MCI_INDIRECT_CTRL_HOPID(GID_AXI_HB) |
+ MCI_INDIRECT_CTRL_LOCAL_PKT);
+ ret |= mci_poll_command_completion(mci_index, MCI_CMD_WRITE);
+
+ /* End address to all transactions entering from AXI at CP.
+ * This will lead to get match for any AXI address
+ * and receive destination ID=1
+ */
+ mci_mmio_write_32(MCI_WRITE_READ_DATA_REG(0), 0xffffffff);
+ mci_mmio_write_32(MCI_ACCESS_CMD_REG(0),
+ MCI_INDIRECT_REG_CTRL_ADDR(
+ MCI_HB_CTRL_WIN0_ADDRESS_MASK_REG_NUM) |
+ MCI_INDIRECT_CTRL_HOPID(GID_IHB_EXT) |
+ MCI_INDIRECT_CTRL_HOPID(GID_AXI_HB));
+ ret |= mci_poll_command_completion(mci_index, MCI_CMD_WRITE);
+
+ debug_exit();
+ return ret;
+}
+
+/* Check if MCI simultaneous transaction was already enabled.
+ * Currently bootrom does this mci configuration only when the boot source is
+ * SAR_MCIX4, in other cases it should be done at this stage.
+ * It is worth noticing that in case of booting from uart, the bootrom
+ * flow is different and this mci initialization is skipped even if boot
+ * source is SAR_MCIX4. Therefore new verification bases on appropriate mci's
+ * register content: if the appropriate reg contains 0x0 it means that the
+ * bootrom didn't perform required mci configuration.
+ *
+ * Returns:
+ * 0 - configuration already done
+ * 1 - configuration missing
+ */
+static _Bool mci_simulatenous_trans_missing(int mci_index)
+{
+ uint32_t reg, ret;
+
+ /* read 'Window 0 Destination ID assignment' from HB register 0x3
+ * (TX_CFG_W0_DST_ID) to check whether ID assignment was already
+ * performed by BootROM.
+ */
+ debug_enter();
+ mci_mmio_write_32(MCI_ACCESS_CMD_REG(0),
+ MCI_INDIRECT_REG_CTRL_ADDR(
+ MCI_HB_CTRL_WIN0_DESTINATION_REG_NUM) |
+ MCI_INDIRECT_CTRL_HOPID(GID_AXI_HB) |
+ MCI_INDIRECT_CTRL_LOCAL_PKT |
+ MCI_INDIRECT_CTRL_READ_CMD);
+ ret = mci_poll_command_completion(mci_index, MCI_CMD_READ);
+
+ reg = mci_mmio_read_32(MCI_WRITE_READ_DATA_REG(mci_index));
+
+ if (ret)
+ ERROR("Failed to verify MCI simultaneous read/write status\n");
+
+ debug_exit();
+ /* default ID assignment is 0, so if register doesn't contain zeros
+ * it means that bootrom already performed required configuration.
+ */
+ if (reg != 0)
+ return 0;
+
+ return 1;
+}
+
+/* For A1 revision, configure the MCI link for performance improvement:
+ * - set MCI to support read/write transactions to arrive at the same time
+ * - Switch AXI to PCIe mode
+ * - Reduce sequence FIFO threshold
+ * - Configure RX/TX FIFO thresholds
+ *
+ * Note:
+ * We don't exit on error code from any sub routine, to try (best effort) to
+ * complete the MCI configuration.
+ * (If we exit - Bootloader will surely fail to boot)
+ */
+int mci_configure(int mci_index)
+{
+ int rval;
+
+ debug_enter();
+ /* According to design guidelines the MCI simultaneous transaction
+ * shouldn't be enabled more then once - therefore make sure that it
+ * wasn't already enabled in bootrom.
+ */
+ if (mci_simulatenous_trans_missing(mci_index)) {
+ VERBOSE("Enabling MCI simultaneous transaction\n");
+ /* set MCI to support read/write transactions
+ * to arrive at the same time
+ */
+ rval = mci_enable_simultaneous_transactions(mci_index);
+ if (rval)
+ ERROR("Failed to set MCI simultaneous read/write\n");
+ } else
+ VERBOSE("Skip MCI ID assignment - already done by bootrom\n");
+
+ /* Configure MCI for more consistent behavior with AXI protocol */
+ rval = mci_axi_set_pcie_mode(mci_index);
+ if (rval)
+ ERROR("Failed to set MCI to AXI PCIe mode\n");
+
+ /* reduce FIFO global threshold */
+ rval = mci_axi_set_fifo_thresh(mci_index);
+ if (rval)
+ ERROR("Failed to set MCI FIFO global threshold\n");
+
+ /* configure RX/TX FIFO thresholds */
+ rval = mci_axi_set_fifo_rx_tx_thresh(mci_index);
+ if (rval)
+ ERROR("Failed to set MCI RX/TX FIFO threshold\n");
+
+ debug_exit();
+ return 1;
+}
+
+int mci_get_link_status(void)
+{
+ uint32_t cmd, data;
+
+ cmd = (MCI_INDIRECT_REG_CTRL_ADDR(MCI_CTRL_STATUS_REG_NUM) |
+ MCI_INDIRECT_CTRL_LOCAL_PKT | MCI_INDIRECT_CTRL_READ_CMD);
+ if (mci_read(0, cmd, &data)) {
+ ERROR("Failed to read status register\n");
+ return -1;
+ }
+
+ /* Check if the link is ready */
+ if (data != MCI_CTRL_PHY_READY) {
+ ERROR("Bad link status %x\n", data);
+ return -1;
+ }
+
+ return 0;
+}
+
+void mci_turn_link_down(void)
+{
+ uint32_t cmd, data;
+ int rval = 0;
+
+ debug_enter();
+
+ /* Turn off auto-link */
+ cmd = (MCI_INDIRECT_REG_CTRL_ADDR(MCI_CTRL_MCI_PHY_SETTINGS_REG_NUM) |
+ MCI_INDIRECT_CTRL_LOCAL_PKT);
+ data = (MCI_CTRL_MCI_PHY_SET_REG_DEF_VAL2 |
+ MCI_CTRL_MCI_PHY_SET_AUTO_LINK_EN(0));
+ rval = mci_write(0, cmd, data);
+ if (rval)
+ ERROR("Failed to turn off auto-link\n");
+
+ /* Reset AP PHY */
+ cmd = (MCI_INDIRECT_REG_CTRL_ADDR(MCI_PHY_CTRL_REG_NUM) |
+ MCI_INDIRECT_CTRL_LOCAL_PKT);
+ data = (MCI_PHY_CTRL_MCI_MINOR |
+ MCI_PHY_CTRL_MCI_MAJOR |
+ MCI_PHY_CTRL_MCI_PHY_MODE_HOST |
+ MCI_PHY_CTRL_MCI_PHY_RESET_CORE);
+ rval = mci_write(0, cmd, data);
+ if (rval)
+ ERROR("Failed to reset AP PHY\n");
+
+ /* Clear all status & CRC values */
+ cmd = (MCI_INDIRECT_REG_CTRL_ADDR(MCI_LINK_CRC_CTRL_REG_NUM) |
+ MCI_INDIRECT_CTRL_LOCAL_PKT);
+ data = 0x0;
+ mci_write(0, cmd, data);
+ cmd = (MCI_INDIRECT_REG_CTRL_ADDR(MCI_CTRL_STATUS_REG_NUM) |
+ MCI_INDIRECT_CTRL_LOCAL_PKT);
+ data = 0x0;
+ rval = mci_write(0, cmd, data);
+ if (rval)
+ ERROR("Failed to reset AP PHY\n");
+
+ /* Wait 5ms before un-reset the PHY */
+ mdelay(5);
+
+ /* Un-reset AP PHY */
+ cmd = (MCI_INDIRECT_REG_CTRL_ADDR(MCI_PHY_CTRL_REG_NUM) |
+ MCI_INDIRECT_CTRL_LOCAL_PKT);
+ data = (MCI_PHY_CTRL_MCI_MINOR | MCI_PHY_CTRL_MCI_MAJOR |
+ MCI_PHY_CTRL_MCI_PHY_MODE_HOST);
+ rval = mci_write(0, cmd, data);
+ if (rval)
+ ERROR("Failed to un-reset AP PHY\n");
+
+ debug_exit();
+}
+
+void mci_turn_link_on(void)
+{
+ uint32_t cmd, data;
+ int rval = 0;
+
+ debug_enter();
+ /* Turn on auto-link */
+ cmd = (MCI_INDIRECT_REG_CTRL_ADDR(MCI_CTRL_MCI_PHY_SETTINGS_REG_NUM) |
+ MCI_INDIRECT_CTRL_LOCAL_PKT);
+ data = (MCI_CTRL_MCI_PHY_SET_REG_DEF_VAL2 |
+ MCI_CTRL_MCI_PHY_SET_AUTO_LINK_EN(1));
+ rval = mci_write(0, cmd, data);
+ if (rval)
+ ERROR("Failed to turn on auto-link\n");
+
+ debug_exit();
+}
+
+/* Initialize MCI for performance improvements */
+int mci_initialize(int mci_index)
+{
+ int ret;
+
+ debug_enter();
+ INFO("MCI%d initialization:\n", mci_index);
+
+ ret = mci_configure(mci_index);
+
+ debug_exit();
+ return ret;
+}
--- /dev/null
+/*
+ * Copyright (C) 2018 Marvell International Ltd.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ * https://spdx.org/licenses
+ */
+
+/* AP806 Marvell SoC driver */
+
+#include <ap_setup.h>
+#include <ccu.h>
+#include <cache_llc.h>
+#include <debug.h>
+#include <io_win.h>
+#include <mci.h>
+#include <mmio.h>
+#include <mvebu_def.h>
+
+#define SMMU_sACR (MVEBU_SMMU_BASE + 0x10)
+#define SMMU_sACR_PG_64K (1 << 16)
+
+#define CCU_GSPMU_CR (MVEBU_CCU_BASE(MVEBU_AP0) + \
+ 0x3F0)
+#define GSPMU_CPU_CONTROL (0x1 << 0)
+
+#define CCU_HTC_CR (MVEBU_CCU_BASE(MVEBU_AP0) + \
+ 0x200)
+#define CCU_SET_POC_OFFSET 5
+
+#define CCU_RGF(win) (MVEBU_CCU_BASE(MVEBU_AP0) + \
+ 0x90 + 4 * (win))
+
+#define DSS_CR0 (MVEBU_RFU_BASE + 0x100)
+#define DVM_48BIT_VA_ENABLE (1 << 21)
+
+/* Secure MoChi incoming access */
+#define SEC_MOCHI_IN_ACC_REG (MVEBU_RFU_BASE + 0x4738)
+#define SEC_MOCHI_IN_ACC_IHB0_EN (1)
+#define SEC_MOCHI_IN_ACC_IHB1_EN (1 << 3)
+#define SEC_MOCHI_IN_ACC_IHB2_EN (1 << 6)
+#define SEC_MOCHI_IN_ACC_PIDI_EN (1 << 9)
+#define SEC_IN_ACCESS_ENA_ALL_MASTERS (SEC_MOCHI_IN_ACC_IHB0_EN | \
+ SEC_MOCHI_IN_ACC_IHB1_EN | \
+ SEC_MOCHI_IN_ACC_IHB2_EN | \
+ SEC_MOCHI_IN_ACC_PIDI_EN)
+
+/* SYSRST_OUTn Config definitions */
+#define MVEBU_SYSRST_OUT_CONFIG_REG (MVEBU_MISC_SOC_BASE + 0x4)
+#define WD_MASK_SYS_RST_OUT (1 << 2)
+
+/* Generic Timer System Controller */
+#define MVEBU_MSS_GTCR_REG (MVEBU_REGS_BASE + 0x581000)
+#define MVEBU_MSS_GTCR_ENABLE_BIT 0x1
+
+/*
+ * AXI Configuration.
+ */
+
+/* Used for Units of AP-806 (e.g. SDIO and etc) */
+#define MVEBU_AXI_ATTR_BASE (MVEBU_REGS_BASE + 0x6F4580)
+#define MVEBU_AXI_ATTR_REG(index) (MVEBU_AXI_ATTR_BASE + \
+ 0x4 * index)
+
+enum axi_attr {
+ AXI_SDIO_ATTR = 0,
+ AXI_DFX_ATTR,
+ AXI_MAX_ATTR,
+};
+
+static void apn_sec_masters_access_en(uint32_t enable)
+{
+ uint32_t reg;
+
+ /* Open/Close incoming access for all masters.
+ * The access is disabled in trusted boot mode
+ * Could only be done in EL3
+ */
+ reg = mmio_read_32(SEC_MOCHI_IN_ACC_REG);
+ if (enable)
+ mmio_write_32(SEC_MOCHI_IN_ACC_REG, reg |
+ SEC_IN_ACCESS_ENA_ALL_MASTERS);
+ else
+ mmio_write_32(SEC_MOCHI_IN_ACC_REG, reg &
+ ~SEC_IN_ACCESS_ENA_ALL_MASTERS);
+}
+
+static void setup_smmu(void)
+{
+ uint32_t reg;
+
+ /* Set the SMMU page size to 64 KB */
+ reg = mmio_read_32(SMMU_sACR);
+ reg |= SMMU_sACR_PG_64K;
+ mmio_write_32(SMMU_sACR, reg);
+}
+
+static void apn806_errata_wa_init(void)
+{
+ /*
+ * ERRATA ID: RES-3033912 - Internal Address Space Init state causes
+ * a hang upon accesses to [0xf070_0000, 0xf07f_ffff]
+ * Workaround: Boot Firmware (ATF) should configure CCU_RGF_WIN(4) to
+ * split [0x6e_0000, 0xff_ffff] to values [0x6e_0000, 0x6f_ffff] and
+ * [0x80_0000, 0xff_ffff] that cause accesses to the
+ * segment of [0xf070_0000, 0xf07f_ffff] to act as RAZWI.
+ */
+ mmio_write_32(CCU_RGF(4), 0x37f9b809);
+ mmio_write_32(CCU_RGF(5), 0x7ffa0009);
+}
+
+static void init_aurora2(void)
+{
+ uint32_t reg;
+
+ /* Enable GSPMU control by CPU */
+ reg = mmio_read_32(CCU_GSPMU_CR);
+ reg |= GSPMU_CPU_CONTROL;
+ mmio_write_32(CCU_GSPMU_CR, reg);
+
+#if LLC_ENABLE
+ /* Enable LLC for AP806 in exclusive mode */
+ llc_enable(0, 1);
+
+ /* Set point of coherency to DDR.
+ * This is required by units which have
+ * SW cache coherency
+ */
+ reg = mmio_read_32(CCU_HTC_CR);
+ reg |= (0x1 << CCU_SET_POC_OFFSET);
+ mmio_write_32(CCU_HTC_CR, reg);
+#endif /* LLC_ENABLE */
+
+ apn806_errata_wa_init();
+}
+
+
+/* MCIx indirect access register are based by default at 0xf4000000/0xf6000000
+ * to avoid conflict of internal registers of units connected via MCIx, which
+ * can be based on the same address (i.e CP1 base is also 0xf4000000),
+ * the following routines remaps the MCIx indirect bases to another domain
+ */
+static void mci_remap_indirect_access_base(void)
+{
+ uint32_t mci;
+
+ for (mci = 0; mci < MCI_MAX_UNIT_ID; mci++)
+ mmio_write_32(MCIX4_REG_START_ADDRESS_REG(mci),
+ MVEBU_MCI_REG_BASE_REMAP(mci) >>
+ MCI_REMAP_OFF_SHIFT);
+}
+
+static void apn806_axi_attr_init(void)
+{
+ uint32_t index, data;
+
+ /* Initialize AXI attributes for APN806 */
+
+ /* Go over the AXI attributes and set Ax-Cache and Ax-Domain */
+ for (index = 0; index < AXI_MAX_ATTR; index++) {
+ switch (index) {
+ /* DFX works with no coherent only -
+ * there's no option to configure the Ax-Cache and Ax-Domain
+ */
+ case AXI_DFX_ATTR:
+ continue;
+ default:
+ /* Set Ax-Cache as cacheable, no allocate, modifiable,
+ * bufferable
+ * The values are different because Read & Write
+ * definition is different in Ax-Cache
+ */
+ data = mmio_read_32(MVEBU_AXI_ATTR_REG(index));
+ data &= ~MVEBU_AXI_ATTR_ARCACHE_MASK;
+ data |= (CACHE_ATTR_WRITE_ALLOC |
+ CACHE_ATTR_CACHEABLE |
+ CACHE_ATTR_BUFFERABLE) <<
+ MVEBU_AXI_ATTR_ARCACHE_OFFSET;
+ data &= ~MVEBU_AXI_ATTR_AWCACHE_MASK;
+ data |= (CACHE_ATTR_READ_ALLOC |
+ CACHE_ATTR_CACHEABLE |
+ CACHE_ATTR_BUFFERABLE) <<
+ MVEBU_AXI_ATTR_AWCACHE_OFFSET;
+ /* Set Ax-Domain as Outer domain */
+ data &= ~MVEBU_AXI_ATTR_ARDOMAIN_MASK;
+ data |= DOMAIN_OUTER_SHAREABLE <<
+ MVEBU_AXI_ATTR_ARDOMAIN_OFFSET;
+ data &= ~MVEBU_AXI_ATTR_AWDOMAIN_MASK;
+ data |= DOMAIN_OUTER_SHAREABLE <<
+ MVEBU_AXI_ATTR_AWDOMAIN_OFFSET;
+ mmio_write_32(MVEBU_AXI_ATTR_REG(index), data);
+ }
+ }
+}
+
+static void dss_setup(void)
+{
+ /* Enable 48-bit VA */
+ mmio_setbits_32(DSS_CR0, DVM_48BIT_VA_ENABLE);
+}
+
+void misc_soc_configurations(void)
+{
+ uint32_t reg;
+
+ /* Un-mask Watchdog reset from influencing the SYSRST_OUTn.
+ * Otherwise, upon WD timeout, the WD reset signal won't trigger reset
+ */
+ reg = mmio_read_32(MVEBU_SYSRST_OUT_CONFIG_REG);
+ reg &= ~(WD_MASK_SYS_RST_OUT);
+ mmio_write_32(MVEBU_SYSRST_OUT_CONFIG_REG, reg);
+}
+
+void ap_init(void)
+{
+ /* Setup Aurora2. */
+ init_aurora2();
+
+ /* configure MCI mapping */
+ mci_remap_indirect_access_base();
+
+ /* configure IO_WIN windows */
+ init_io_win(MVEBU_AP0);
+
+ /* configure CCU windows */
+ init_ccu(MVEBU_AP0);
+
+ /* configure DSS */
+ dss_setup();
+
+ /* configure the SMMU */
+ setup_smmu();
+
+ /* Open APN incoming access for all masters */
+ apn_sec_masters_access_en(1);
+
+ /* configure axi for APN*/
+ apn806_axi_attr_init();
+
+ /* misc configuration of the SoC */
+ misc_soc_configurations();
+}
+
+void ap_ble_init(void)
+{
+}
+
+int ap_get_count(void)
+{
+ return 1;
+}
+
--- /dev/null
+/*
+ * Copyright (C) 2018 Marvell International Ltd.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ * https://spdx.org/licenses
+ */
+
+/* CP110 Marvell SoC driver */
+
+#include <amb_adec.h>
+#include <cp110_setup.h>
+#include <debug.h>
+#include <delay_timer.h>
+#include <iob.h>
+#include <plat_marvell.h>
+
+/*
+ * AXI Configuration.
+ */
+
+ /* Used for Units of CP-110 (e.g. USB device, USB Host, and etc) */
+#define MVEBU_AXI_ATTR_OFFSET (0x441300)
+#define MVEBU_AXI_ATTR_REG(index) (MVEBU_AXI_ATTR_OFFSET + \
+ 0x4 * index)
+
+/* AXI Protection bits */
+#define MVEBU_AXI_PROT_OFFSET (0x441200)
+
+/* AXI Protection regs */
+#define MVEBU_AXI_PROT_REG(index) ((index <= 4) ? \
+ (MVEBU_AXI_PROT_OFFSET + \
+ 0x4 * index) : \
+ (MVEBU_AXI_PROT_OFFSET + 0x18))
+#define MVEBU_AXI_PROT_REGS_NUM (6)
+
+#define MVEBU_SOC_CFGS_OFFSET (0x441900)
+#define MVEBU_SOC_CFG_REG(index) (MVEBU_SOC_CFGS_OFFSET + \
+ 0x4 * index)
+#define MVEBU_SOC_CFG_REG_NUM (0)
+#define MVEBU_SOC_CFG_GLOG_SECURE_EN_MASK (0xE)
+
+/* SATA3 MBUS to AXI regs */
+#define MVEBU_BRIDGE_WIN_DIS_REG (MVEBU_SOC_CFGS_OFFSET + 0x10)
+#define MVEBU_BRIDGE_WIN_DIS_OFF (0x0)
+
+/* SATA3 MBUS to AXI regs */
+#define MVEBU_SATA_M2A_AXI_PORT_CTRL_REG (0x54ff04)
+
+/* AXI to MBUS bridge registers */
+#define MVEBU_AMB_IP_OFFSET (0x13ff00)
+#define MVEBU_AMB_IP_BRIDGE_WIN_REG(win) (MVEBU_AMB_IP_OFFSET + \
+ (win * 0x8))
+#define MVEBU_AMB_IP_BRIDGE_WIN_EN_OFFSET 0
+#define MVEBU_AMB_IP_BRIDGE_WIN_EN_MASK \
+ (0x1 << MVEBU_AMB_IP_BRIDGE_WIN_EN_OFFSET)
+#define MVEBU_AMB_IP_BRIDGE_WIN_SIZE_OFFSET 16
+#define MVEBU_AMB_IP_BRIDGE_WIN_SIZE_MASK \
+ (0xffff << MVEBU_AMB_IP_BRIDGE_WIN_SIZE_OFFSET)
+
+#define MVEBU_SAMPLE_AT_RESET_REG (0x440600)
+#define SAR_PCIE1_CLK_CFG_OFFSET 31
+#define SAR_PCIE1_CLK_CFG_MASK (0x1 << SAR_PCIE1_CLK_CFG_OFFSET)
+#define SAR_PCIE0_CLK_CFG_OFFSET 30
+#define SAR_PCIE0_CLK_CFG_MASK (0x1 << SAR_PCIE0_CLK_CFG_OFFSET)
+#define SAR_I2C_INIT_EN_OFFSET 24
+#define SAR_I2C_INIT_EN_MASK (1 << SAR_I2C_INIT_EN_OFFSET)
+
+/*******************************************************************************
+ * PCIE clock buffer control
+ ******************************************************************************/
+#define MVEBU_PCIE_REF_CLK_BUF_CTRL (0x4404F0)
+#define PCIE1_REFCLK_BUFF_SOURCE 0x800
+#define PCIE0_REFCLK_BUFF_SOURCE 0x400
+
+/*******************************************************************************
+ * MSS Device Push Set Register
+ ******************************************************************************/
+#define MVEBU_CP_MSS_DPSHSR_REG (0x280040)
+#define MSS_DPSHSR_REG_PCIE_CLK_SEL 0x8
+
+/*******************************************************************************
+ * RTC Configuration
+ ******************************************************************************/
+#define MVEBU_RTC_BASE (0x284000)
+#define MVEBU_RTC_STATUS_REG (MVEBU_RTC_BASE + 0x0)
+#define MVEBU_RTC_STATUS_ALARM1_MASK 0x1
+#define MVEBU_RTC_STATUS_ALARM2_MASK 0x2
+#define MVEBU_RTC_IRQ_1_CONFIG_REG (MVEBU_RTC_BASE + 0x4)
+#define MVEBU_RTC_IRQ_2_CONFIG_REG (MVEBU_RTC_BASE + 0x8)
+#define MVEBU_RTC_TIME_REG (MVEBU_RTC_BASE + 0xC)
+#define MVEBU_RTC_ALARM_1_REG (MVEBU_RTC_BASE + 0x10)
+#define MVEBU_RTC_ALARM_2_REG (MVEBU_RTC_BASE + 0x14)
+#define MVEBU_RTC_CCR_REG (MVEBU_RTC_BASE + 0x18)
+#define MVEBU_RTC_NOMINAL_TIMING 0x2000
+#define MVEBU_RTC_NOMINAL_TIMING_MASK 0x7FFF
+#define MVEBU_RTC_TEST_CONFIG_REG (MVEBU_RTC_BASE + 0x1C)
+#define MVEBU_RTC_BRIDGE_TIMING_CTRL0_REG (MVEBU_RTC_BASE + 0x80)
+#define MVEBU_RTC_WRCLK_PERIOD_MASK 0xFFFF
+#define MVEBU_RTC_WRCLK_PERIOD_DEFAULT 0x3FF
+#define MVEBU_RTC_WRCLK_SETUP_OFFS 16
+#define MVEBU_RTC_WRCLK_SETUP_MASK 0xFFFF0000
+#define MVEBU_RTC_WRCLK_SETUP_DEFAULT 0x29
+#define MVEBU_RTC_BRIDGE_TIMING_CTRL1_REG (MVEBU_RTC_BASE + 0x84)
+#define MVEBU_RTC_READ_OUTPUT_DELAY_MASK 0xFFFF
+#define MVEBU_RTC_READ_OUTPUT_DELAY_DEFAULT 0x1F
+
+enum axi_attr {
+ AXI_ADUNIT_ATTR = 0,
+ AXI_COMUNIT_ATTR,
+ AXI_EIP197_ATTR,
+ AXI_USB3D_ATTR,
+ AXI_USB3H0_ATTR,
+ AXI_USB3H1_ATTR,
+ AXI_SATA0_ATTR,
+ AXI_SATA1_ATTR,
+ AXI_DAP_ATTR,
+ AXI_DFX_ATTR,
+ AXI_DBG_TRC_ATTR = 12,
+ AXI_SDIO_ATTR,
+ AXI_MSS_ATTR,
+ AXI_MAX_ATTR,
+};
+
+/* Most stream IDS are configured centrally in the CP-110 RFU
+ * but some are configured inside the unit registers
+ */
+#define RFU_STREAM_ID_BASE (0x450000)
+#define USB3H_0_STREAM_ID_REG (RFU_STREAM_ID_BASE + 0xC)
+#define USB3H_1_STREAM_ID_REG (RFU_STREAM_ID_BASE + 0x10)
+#define SATA_0_STREAM_ID_REG (RFU_STREAM_ID_BASE + 0x14)
+#define SATA_1_STREAM_ID_REG (RFU_STREAM_ID_BASE + 0x18)
+
+#define CP_DMA_0_STREAM_ID_REG (0x6B0010)
+#define CP_DMA_1_STREAM_ID_REG (0x6D0010)
+
+/* We allocate IDs 128-255 for PCIe */
+#define MAX_STREAM_ID (0x80)
+
+uintptr_t stream_id_reg[] = {
+ USB3H_0_STREAM_ID_REG,
+ USB3H_1_STREAM_ID_REG,
+ CP_DMA_0_STREAM_ID_REG,
+ CP_DMA_1_STREAM_ID_REG,
+ SATA_0_STREAM_ID_REG,
+ SATA_1_STREAM_ID_REG,
+ 0
+};
+
+static void cp110_errata_wa_init(uintptr_t base)
+{
+ uint32_t data;
+
+ /* ERRATA GL-4076863:
+ * Reset value for global_secure_enable inputs must be changed
+ * from '1' to '0'.
+ * When asserted, only "secured" transactions can enter IHB
+ * configuration space.
+ * However, blocking AXI transactions is performed by IOB.
+ * Performing it also at IHB/HB complicates programming model.
+ *
+ * Enable non-secure access in SOC configuration register
+ */
+ data = mmio_read_32(base + MVEBU_SOC_CFG_REG(MVEBU_SOC_CFG_REG_NUM));
+ data &= ~MVEBU_SOC_CFG_GLOG_SECURE_EN_MASK;
+ mmio_write_32(base + MVEBU_SOC_CFG_REG(MVEBU_SOC_CFG_REG_NUM), data);
+}
+
+static void cp110_pcie_clk_cfg(uintptr_t base)
+{
+ uint32_t pcie0_clk, pcie1_clk, reg;
+
+ /*
+ * Determine the pcie0/1 clock direction (input/output) from the
+ * sample at reset.
+ */
+ reg = mmio_read_32(base + MVEBU_SAMPLE_AT_RESET_REG);
+ pcie0_clk = (reg & SAR_PCIE0_CLK_CFG_MASK) >> SAR_PCIE0_CLK_CFG_OFFSET;
+ pcie1_clk = (reg & SAR_PCIE1_CLK_CFG_MASK) >> SAR_PCIE1_CLK_CFG_OFFSET;
+
+ /* CP110 revision A2 */
+ if (cp110_rev_id_get(base) == MVEBU_CP110_REF_ID_A2) {
+ /*
+ * PCIe Reference Clock Buffer Control register must be
+ * set according to the clock direction (input/output)
+ */
+ reg = mmio_read_32(base + MVEBU_PCIE_REF_CLK_BUF_CTRL);
+ reg &= ~(PCIE0_REFCLK_BUFF_SOURCE | PCIE1_REFCLK_BUFF_SOURCE);
+ if (!pcie0_clk)
+ reg |= PCIE0_REFCLK_BUFF_SOURCE;
+ if (!pcie1_clk)
+ reg |= PCIE1_REFCLK_BUFF_SOURCE;
+
+ mmio_write_32(base + MVEBU_PCIE_REF_CLK_BUF_CTRL, reg);
+ }
+
+ /* CP110 revision A1 */
+ if (cp110_rev_id_get(base) == MVEBU_CP110_REF_ID_A1) {
+ if (!pcie0_clk || !pcie1_clk) {
+ /*
+ * if one of the pcie clocks is set to input,
+ * we need to set mss_push[131] field, otherwise,
+ * the pcie clock might not work.
+ */
+ reg = mmio_read_32(base + MVEBU_CP_MSS_DPSHSR_REG);
+ reg |= MSS_DPSHSR_REG_PCIE_CLK_SEL;
+ mmio_write_32(base + MVEBU_CP_MSS_DPSHSR_REG, reg);
+ }
+ }
+}
+
+/* Set a unique stream id for all DMA capable devices */
+static void cp110_stream_id_init(uintptr_t base, uint32_t stream_id)
+{
+ int i = 0;
+
+ while (stream_id_reg[i]) {
+ if (i > MAX_STREAM_ID_PER_CP) {
+ NOTICE("Only first %d (maximum) Stream IDs allocated\n",
+ MAX_STREAM_ID_PER_CP);
+ return;
+ }
+
+ if ((stream_id_reg[i] == CP_DMA_0_STREAM_ID_REG) ||
+ (stream_id_reg[i] == CP_DMA_1_STREAM_ID_REG))
+ mmio_write_32(base + stream_id_reg[i],
+ stream_id << 16 | stream_id);
+ else
+ mmio_write_32(base + stream_id_reg[i], stream_id);
+
+ /* SATA port 0/1 are in the same SATA unit, and they should use
+ * the same STREAM ID number
+ */
+ if (stream_id_reg[i] != SATA_0_STREAM_ID_REG)
+ stream_id++;
+
+ i++;
+ }
+}
+
+static void cp110_axi_attr_init(uintptr_t base)
+{
+ uint32_t index, data;
+
+ /* Initialize AXI attributes for Armada-7K/8K SoC */
+
+ /* Go over the AXI attributes and set Ax-Cache and Ax-Domain */
+ for (index = 0; index < AXI_MAX_ATTR; index++) {
+ switch (index) {
+ /* DFX and MSS unit works with no coherent only -
+ * there's no option to configure the Ax-Cache and Ax-Domain
+ */
+ case AXI_DFX_ATTR:
+ case AXI_MSS_ATTR:
+ continue;
+ default:
+ /* Set Ax-Cache as cacheable, no allocate, modifiable,
+ * bufferable
+ * The values are different because Read & Write
+ * definition is different in Ax-Cache
+ */
+ data = mmio_read_32(base + MVEBU_AXI_ATTR_REG(index));
+ data &= ~MVEBU_AXI_ATTR_ARCACHE_MASK;
+ data |= (CACHE_ATTR_WRITE_ALLOC |
+ CACHE_ATTR_CACHEABLE |
+ CACHE_ATTR_BUFFERABLE) <<
+ MVEBU_AXI_ATTR_ARCACHE_OFFSET;
+ data &= ~MVEBU_AXI_ATTR_AWCACHE_MASK;
+ data |= (CACHE_ATTR_READ_ALLOC |
+ CACHE_ATTR_CACHEABLE |
+ CACHE_ATTR_BUFFERABLE) <<
+ MVEBU_AXI_ATTR_AWCACHE_OFFSET;
+ /* Set Ax-Domain as Outer domain */
+ data &= ~MVEBU_AXI_ATTR_ARDOMAIN_MASK;
+ data |= DOMAIN_OUTER_SHAREABLE <<
+ MVEBU_AXI_ATTR_ARDOMAIN_OFFSET;
+ data &= ~MVEBU_AXI_ATTR_AWDOMAIN_MASK;
+ data |= DOMAIN_OUTER_SHAREABLE <<
+ MVEBU_AXI_ATTR_AWDOMAIN_OFFSET;
+ mmio_write_32(base + MVEBU_AXI_ATTR_REG(index), data);
+ }
+ }
+
+ /* SATA IOCC supported, cache attributes
+ * for SATA MBUS to AXI configuration.
+ */
+ data = mmio_read_32(base + MVEBU_SATA_M2A_AXI_PORT_CTRL_REG);
+ data &= ~MVEBU_SATA_M2A_AXI_AWCACHE_MASK;
+ data |= (CACHE_ATTR_WRITE_ALLOC |
+ CACHE_ATTR_CACHEABLE |
+ CACHE_ATTR_BUFFERABLE) <<
+ MVEBU_SATA_M2A_AXI_AWCACHE_OFFSET;
+ data &= ~MVEBU_SATA_M2A_AXI_ARCACHE_MASK;
+ data |= (CACHE_ATTR_READ_ALLOC |
+ CACHE_ATTR_CACHEABLE |
+ CACHE_ATTR_BUFFERABLE) <<
+ MVEBU_SATA_M2A_AXI_ARCACHE_OFFSET;
+ mmio_write_32(base + MVEBU_SATA_M2A_AXI_PORT_CTRL_REG, data);
+
+ /* Set all IO's AXI attribute to non-secure access. */
+ for (index = 0; index < MVEBU_AXI_PROT_REGS_NUM; index++)
+ mmio_write_32(base + MVEBU_AXI_PROT_REG(index),
+ DOMAIN_SYSTEM_SHAREABLE);
+}
+
+static void amb_bridge_init(uintptr_t base)
+{
+ uint32_t reg;
+
+ /* Open AMB bridge Window to Access COMPHY/MDIO registers */
+ reg = mmio_read_32(base + MVEBU_AMB_IP_BRIDGE_WIN_REG(0));
+ reg &= ~(MVEBU_AMB_IP_BRIDGE_WIN_SIZE_MASK |
+ MVEBU_AMB_IP_BRIDGE_WIN_EN_MASK);
+ reg |= (0x7ff << MVEBU_AMB_IP_BRIDGE_WIN_SIZE_OFFSET) |
+ (0x1 << MVEBU_AMB_IP_BRIDGE_WIN_EN_OFFSET);
+ mmio_write_32(base + MVEBU_AMB_IP_BRIDGE_WIN_REG(0), reg);
+}
+
+static void cp110_rtc_init(uintptr_t base)
+{
+ /* Update MBus timing parameters before accessing RTC registers */
+ mmio_clrsetbits_32(base + MVEBU_RTC_BRIDGE_TIMING_CTRL0_REG,
+ MVEBU_RTC_WRCLK_PERIOD_MASK,
+ MVEBU_RTC_WRCLK_PERIOD_DEFAULT);
+
+ mmio_clrsetbits_32(base + MVEBU_RTC_BRIDGE_TIMING_CTRL0_REG,
+ MVEBU_RTC_WRCLK_SETUP_MASK,
+ MVEBU_RTC_WRCLK_SETUP_DEFAULT <<
+ MVEBU_RTC_WRCLK_SETUP_OFFS);
+
+ mmio_clrsetbits_32(base + MVEBU_RTC_BRIDGE_TIMING_CTRL1_REG,
+ MVEBU_RTC_READ_OUTPUT_DELAY_MASK,
+ MVEBU_RTC_READ_OUTPUT_DELAY_DEFAULT);
+
+ /*
+ * Issue reset to the RTC if Clock Correction register
+ * contents did not sustain the reboot/power-on.
+ */
+ if ((mmio_read_32(base + MVEBU_RTC_CCR_REG) &
+ MVEBU_RTC_NOMINAL_TIMING_MASK) != MVEBU_RTC_NOMINAL_TIMING) {
+ /* Reset Test register */
+ mmio_write_32(base + MVEBU_RTC_TEST_CONFIG_REG, 0);
+ mdelay(500);
+
+ /* Reset Time register */
+ mmio_write_32(base + MVEBU_RTC_TIME_REG, 0);
+ udelay(62);
+
+ /* Reset Status register */
+ mmio_write_32(base + MVEBU_RTC_STATUS_REG,
+ (MVEBU_RTC_STATUS_ALARM1_MASK |
+ MVEBU_RTC_STATUS_ALARM2_MASK));
+ udelay(62);
+
+ /* Turn off Int1 and Int2 sources & clear the Alarm count */
+ mmio_write_32(base + MVEBU_RTC_IRQ_1_CONFIG_REG, 0);
+ mmio_write_32(base + MVEBU_RTC_IRQ_2_CONFIG_REG, 0);
+ mmio_write_32(base + MVEBU_RTC_ALARM_1_REG, 0);
+ mmio_write_32(base + MVEBU_RTC_ALARM_2_REG, 0);
+
+ /* Setup nominal register access timing */
+ mmio_write_32(base + MVEBU_RTC_CCR_REG,
+ MVEBU_RTC_NOMINAL_TIMING);
+
+ /* Reset Time register */
+ mmio_write_32(base + MVEBU_RTC_TIME_REG, 0);
+ udelay(10);
+
+ /* Reset Status register */
+ mmio_write_32(base + MVEBU_RTC_STATUS_REG,
+ (MVEBU_RTC_STATUS_ALARM1_MASK |
+ MVEBU_RTC_STATUS_ALARM2_MASK));
+ udelay(50);
+ }
+}
+
+static void cp110_amb_adec_init(uintptr_t base)
+{
+ /* enable AXI-MBUS by clearing "Bridge Windows Disable" */
+ mmio_clrbits_32(base + MVEBU_BRIDGE_WIN_DIS_REG,
+ (1 << MVEBU_BRIDGE_WIN_DIS_OFF));
+
+ /* configure AXI-MBUS windows for CP */
+ init_amb_adec(base);
+}
+
+void cp110_init(uintptr_t cp110_base, uint32_t stream_id)
+{
+ INFO("%s: Initialize CPx - base = %lx\n", __func__, cp110_base);
+
+ /* configure IOB windows for CP0*/
+ init_iob(cp110_base);
+
+ /* configure AXI-MBUS windows for CP0*/
+ cp110_amb_adec_init(cp110_base);
+
+ /* configure axi for CP0*/
+ cp110_axi_attr_init(cp110_base);
+
+ /* Execute SW WA for erratas */
+ cp110_errata_wa_init(cp110_base);
+
+ /* Confiure pcie clock according to clock direction */
+ cp110_pcie_clk_cfg(cp110_base);
+
+ /* configure stream id for CP0 */
+ cp110_stream_id_init(cp110_base, stream_id);
+
+ /* Open AMB bridge for comphy for CP0 & CP1*/
+ amb_bridge_init(cp110_base);
+
+ /* Reset RTC if needed */
+ cp110_rtc_init(cp110_base);
+}
+
+/* Do the minimal setup required to configure the CP in BLE */
+void cp110_ble_init(uintptr_t cp110_base)
+{
+#if PCI_EP_SUPPORT
+ INFO("%s: Initialize CPx - base = %lx\n", __func__, cp110_base);
+
+ amb_bridge_init(cp110_base);
+
+ /* Configure PCIe clock */
+ cp110_pcie_clk_cfg(cp110_base);
+
+ /* Configure PCIe endpoint */
+ ble_plat_pcie_ep_setup();
+#endif
+}
projects / project / bcm63xx / atf.git / commitdiff