marvell: drivers: Add MoChi drivers
Add ModularChip and MCI drivers for A8K SoC family.
ModularChip drivers include support for the internal building
blocks of Marvell ARMADA SoCs - APN806, APN807 and CP110
Change-Id: I9559343788fa2e5eb47e6384a4a7d47408787c02
Signed-off-by: Hanna Hawa <hannah@marvell.com>
Signed-off-by: Konstantin Porotchkin <kostap@marvell.com>
diff --git a/drivers/marvell/mochi/cp110_setup.c b/drivers/marvell/mochi/cp110_setup.c
new file mode 100644
index 0000000..c4cb307
--- /dev/null
+++ b/drivers/marvell/mochi/cp110_setup.c
@@ -0,0 +1,429 @@
+/*
+ * 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
+}