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/apn806_setup.c b/drivers/marvell/mochi/apn806_setup.c
new file mode 100644
index 0000000..1d33be9
--- /dev/null
+++ b/drivers/marvell/mochi/apn806_setup.c
@@ -0,0 +1,251 @@
+/*
+ * 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;
+}
+