[U-Boot] [PATCH v4 06/19] arm: socfpga: Add reset driver support for Arria 10
Ley Foon Tan
ley.foon.tan at intel.com
Wed Apr 5 09:32:41 UTC 2017
Add reset driver support for Arria 10.
Signed-off-by: Tien Fong Chee <tien.fong.chee at intel.com>
Signed-off-by: Ley Foon Tan <ley.foon.tan at intel.com>
---
arch/arm/mach-socfpga/Makefile | 2 +
arch/arm/mach-socfpga/include/mach/reset_manager.h | 2 +
.../include/mach/reset_manager_arria10.h | 144 ++++++++
arch/arm/mach-socfpga/reset_manager_arria10.c | 389 +++++++++++++++++++++
include/dt-bindings/reset/altr,rst-mgr-a10.h | 103 ++++++
5 files changed, 640 insertions(+)
create mode 100644 arch/arm/mach-socfpga/include/mach/reset_manager_arria10.h
create mode 100644 arch/arm/mach-socfpga/reset_manager_arria10.c
create mode 100644 include/dt-bindings/reset/altr,rst-mgr-a10.h
diff --git a/arch/arm/mach-socfpga/Makefile b/arch/arm/mach-socfpga/Makefile
index e83da2e..d81f003 100644
--- a/arch/arm/mach-socfpga/Makefile
+++ b/arch/arm/mach-socfpga/Makefile
@@ -10,6 +10,8 @@
obj-y += misc.o timer.o reset_manager.o clock_manager.o \
fpga_manager.o board.o
+obj-$(CONFIG_TARGET_SOCFPGA_ARRIA10) += reset_manager_arria10.o
+
obj-$(CONFIG_SPL_BUILD) += spl.o freeze_controller.o
# QTS-generated config file wrappers
diff --git a/arch/arm/mach-socfpga/include/mach/reset_manager.h b/arch/arm/mach-socfpga/include/mach/reset_manager.h
index c99efa7..a0d611b 100644
--- a/arch/arm/mach-socfpga/include/mach/reset_manager.h
+++ b/arch/arm/mach-socfpga/include/mach/reset_manager.h
@@ -45,6 +45,8 @@ void socfpga_per_reset_all(void);
#if defined(CONFIG_TARGET_SOCFPGA_GEN5)
#include <asm/arch/reset_manager_gen5.h>
+#elif defined(CONFIG_TARGET_SOCFPGA_ARRIA10)
+#include <asm/arch/reset_manager_arria10.h>
#endif
#endif /* _RESET_MANAGER_H_ */
diff --git a/arch/arm/mach-socfpga/include/mach/reset_manager_arria10.h b/arch/arm/mach-socfpga/include/mach/reset_manager_arria10.h
new file mode 100644
index 0000000..878c1b6
--- /dev/null
+++ b/arch/arm/mach-socfpga/include/mach/reset_manager_arria10.h
@@ -0,0 +1,144 @@
+/*
+ * Copyright (C) 2016-2017 Intel Corporation
+ *
+ * SPDX-License-Identifier: GPL-2.0
+ */
+
+#ifndef _RESET_MANAGER_ARRIA10_H_
+#define _RESET_MANAGER_ARRIA10_H_
+
+void socfpga_watchdog_disable(void);
+void socfpga_reset_deassert_noc_ddr_scheduler(void);
+int socfpga_is_wdt_in_reset(void);
+void socfpga_emac_manage_reset(ulong emacbase, u32 state);
+int socfpga_reset_deassert_bridges_handoff(void);
+void socfpga_reset_assert_fpga_connected_peripherals(void);
+void socfpga_reset_deassert_osc1wd0(void);
+void socfpga_reset_uart(int assert);
+
+struct socfpga_reset_manager {
+ u32 stat;
+ u32 ramstat;
+ u32 miscstat;
+ u32 ctrl;
+ u32 hdsken;
+ u32 hdskreq;
+ u32 hdskack;
+ u32 counts;
+ u32 mpumodrst;
+ u32 per0modrst;
+ u32 per1modrst;
+ u32 brgmodrst;
+ u32 sysmodrst;
+ u32 coldmodrst;
+ u32 nrstmodrst;
+ u32 dbgmodrst;
+ u32 mpuwarmmask;
+ u32 per0warmmask;
+ u32 per1warmmask;
+ u32 brgwarmmask;
+ u32 syswarmmask;
+ u32 nrstwarmmask;
+ u32 l3warmmask;
+ u32 tststa;
+ u32 tstscratch;
+ u32 hdsktimeout;
+ u32 hmcintr;
+ u32 hmcintren;
+ u32 hmcintrens;
+ u32 hmcintrenr;
+ u32 hmcgpout;
+ u32 hmcgpin;
+};
+
+/*
+ * SocFPGA Arria10 reset IDs, bank mapping is as follows:
+ * 0 ... mpumodrst
+ * 1 ... per0modrst
+ * 2 ... per1modrst
+ * 3 ... brgmodrst
+ * 4 ... sysmodrst
+ */
+#define RSTMGR_EMAC0 RSTMGR_DEFINE(1, 0)
+#define RSTMGR_EMAC1 RSTMGR_DEFINE(1, 1)
+#define RSTMGR_EMAC2 RSTMGR_DEFINE(1, 2)
+#define RSTMGR_NAND RSTMGR_DEFINE(1, 5)
+#define RSTMGR_QSPI RSTMGR_DEFINE(1, 6)
+#define RSTMGR_SDMMC RSTMGR_DEFINE(1, 7)
+#define RSTMGR_DMA RSTMGR_DEFINE(1, 16)
+#define RSTMGR_SPIM0 RSTMGR_DEFINE(1, 17)
+#define RSTMGR_SPIM1 RSTMGR_DEFINE(1, 18)
+#define RSTMGR_L4WD0 RSTMGR_DEFINE(2, 0)
+#define RSTMGR_L4WD1 RSTMGR_DEFINE(2, 1)
+#define RSTMGR_L4SYSTIMER0 RSTMGR_DEFINE(2, 2)
+#define RSTMGR_L4SYSTIMER1 RSTMGR_DEFINE(2, 3)
+#define RSTMGR_SPTIMER0 RSTMGR_DEFINE(2, 4)
+#define RSTMGR_SPTIMER1 RSTMGR_DEFINE(2, 5)
+#define RSTMGR_UART0 RSTMGR_DEFINE(2, 16)
+#define RSTMGR_UART1 RSTMGR_DEFINE(2, 17)
+#define RSTMGR_DDRSCH RSTMGR_DEFINE(3, 6)
+
+#define ALT_RSTMGR_CTL_SWWARMRSTREQ_SET_MSK BIT(1)
+#define ALT_RSTMGR_PER0MODRST_EMAC0_SET_MSK BIT(0)
+#define ALT_RSTMGR_PER0MODRST_EMAC1_SET_MSK BIT(1)
+#define ALT_RSTMGR_PER0MODRST_EMAC2_SET_MSK BIT(2)
+#define ALT_RSTMGR_PER0MODRST_USB0_SET_MSK BIT(3)
+#define ALT_RSTMGR_PER0MODRST_USB1_SET_MSK BIT(4)
+#define ALT_RSTMGR_PER0MODRST_NAND_SET_MSK BIT(5)
+#define ALT_RSTMGR_PER0MODRST_QSPI_SET_MSK BIT(6)
+#define ALT_RSTMGR_PER0MODRST_SDMMC_SET_MSK BIT(7)
+#define ALT_RSTMGR_PER0MODRST_EMACECC0_SET_MSK BIT(8)
+#define ALT_RSTMGR_PER0MODRST_EMACECC1_SET_MSK BIT(9)
+#define ALT_RSTMGR_PER0MODRST_EMACECC2_SET_MSK BIT(10)
+#define ALT_RSTMGR_PER0MODRST_USBECC0_SET_MSK BIT(11)
+#define ALT_RSTMGR_PER0MODRST_USBECC1_SET_MSK BIT(12)
+#define ALT_RSTMGR_PER0MODRST_NANDECC_SET_MSK BIT(13)
+#define ALT_RSTMGR_PER0MODRST_QSPIECC_SET_MSK BIT(14)
+#define ALT_RSTMGR_PER0MODRST_SDMMCECC_SET_MSK BIT(15)
+#define ALT_RSTMGR_PER0MODRST_DMA_SET_MSK BIT(16)
+#define ALT_RSTMGR_PER0MODRST_SPIM0_SET_MSK BIT(17)
+#define ALT_RSTMGR_PER0MODRST_SPIM1_SET_MSK BIT(18)
+#define ALT_RSTMGR_PER0MODRST_SPIS0_SET_MSK BIT(19)
+#define ALT_RSTMGR_PER0MODRST_SPIS1_SET_MSK BIT(20)
+#define ALT_RSTMGR_PER0MODRST_DMAECC_SET_MSK BIT(21)
+#define ALT_RSTMGR_PER0MODRST_EMACPTP_SET_MSK BIT(22)
+#define ALT_RSTMGR_PER0MODRST_DMAIF0_SET_MSK BIT(24)
+#define ALT_RSTMGR_PER0MODRST_DMAIF1_SET_MSK BIT(25)
+#define ALT_RSTMGR_PER0MODRST_DMAIF2_SET_MSK BIT(26)
+#define ALT_RSTMGR_PER0MODRST_DMAIF3_SET_MSK BIT(27)
+#define ALT_RSTMGR_PER0MODRST_DMAIF4_SET_MSK BIT(28)
+#define ALT_RSTMGR_PER0MODRST_DMAIF5_SET_MSK BIT(29)
+#define ALT_RSTMGR_PER0MODRST_DMAIF6_SET_MSK BIT(30)
+#define ALT_RSTMGR_PER0MODRST_DMAIF7_SET_MSK BIT(31)
+
+#define ALT_RSTMGR_PER1MODRST_WD0_SET_MSK BIT(0)
+#define ALT_RSTMGR_PER1MODRST_WD1_SET_MSK BIT(1)
+#define ALT_RSTMGR_PER1MODRST_L4SYSTMR0_SET_MSK BIT(2)
+#define ALT_RSTMGR_PER1MODRST_L4SYSTMR1_SET_MSK BIT(3)
+#define ALT_RSTMGR_PER1MODRST_SPTMR0_SET_MSK BIT(4)
+#define ALT_RSTMGR_PER1MODRST_SPTMR1_SET_MSK BIT(5)
+#define ALT_RSTMGR_PER1MODRST_I2C0_SET_MSK BIT(8)
+#define ALT_RSTMGR_PER1MODRST_I2C1_SET_MSK BIT(9)
+#define ALT_RSTMGR_PER1MODRST_I2C2_SET_MSK BIT(10)
+#define ALT_RSTMGR_PER1MODRST_I2C3_SET_MSK BIT(11)
+#define ALT_RSTMGR_PER1MODRST_I2C4_SET_MSK BIT(12)
+#define ALT_RSTMGR_PER1MODRST_UART0_SET_MSK BIT(16)
+#define ALT_RSTMGR_PER1MODRST_UART1_SET_MSK BIT(17)
+#define ALT_RSTMGR_PER1MODRST_GPIO0_SET_MSK BIT(24)
+#define ALT_RSTMGR_PER1MODRST_GPIO1_SET_MSK BIT(25)
+#define ALT_RSTMGR_PER1MODRST_GPIO2_SET_MSK BIT(26)
+
+#define ALT_RSTMGR_BRGMODRST_H2F_SET_MSK BIT(0)
+#define ALT_RSTMGR_BRGMODRST_LWH2F_SET_MSK BIT(1)
+#define ALT_RSTMGR_BRGMODRST_F2H_SET_MSK BIT(2)
+#define ALT_RSTMGR_BRGMODRST_F2SSDRAM0_SET_MSK BIT(3)
+#define ALT_RSTMGR_BRGMODRST_F2SSDRAM1_SET_MSK BIT(4)
+#define ALT_RSTMGR_BRGMODRST_F2SSDRAM2_SET_MSK BIT(5)
+#define ALT_RSTMGR_BRGMODRST_DDRSCH_SET_MSK BIT(6)
+
+#define ALT_RSTMGR_HDSKEN_SDRSELFREFEN_SET_MSK BIT(0)
+#define ALT_RSTMGR_HDSKEN_FPGAMGRHSEN_SET_MSK BIT(1)
+#define ALT_RSTMGR_HDSKEN_FPGAHSEN_SET_MSK BIT(2)
+#define ALT_RSTMGR_HDSKEN_ETRSTALLEN_SET_MSK BIT(3)
+
+#endif /* _RESET_MANAGER_ARRIA10_H_ */
diff --git a/arch/arm/mach-socfpga/reset_manager_arria10.c b/arch/arm/mach-socfpga/reset_manager_arria10.c
new file mode 100644
index 0000000..e24f2f2
--- /dev/null
+++ b/arch/arm/mach-socfpga/reset_manager_arria10.c
@@ -0,0 +1,389 @@
+/*
+ * Copyright (C) 2016-2017 Intel Corporation
+ *
+ * SPDX-License-Identifier: GPL-2.0
+ */
+
+#include <asm/io.h>
+#include <asm/arch/fpga_manager.h>
+#include <asm/arch/misc.h>
+#include <asm/arch/reset_manager.h>
+#include <asm/arch/system_manager.h>
+#include <common.h>
+#include <errno.h>
+#include <fdtdec.h>
+#include <wait_bit.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static const struct socfpga_reset_manager *reset_manager_base =
+ (void *)SOCFPGA_RSTMGR_ADDRESS;
+static const struct socfpga_system_manager *sysmgr_regs =
+ (struct socfpga_system_manager *)SOCFPGA_SYSMGR_ADDRESS;
+
+#define ECC_MASK (ALT_RSTMGR_PER0MODRST_EMACECC0_SET_MSK | \
+ ALT_RSTMGR_PER0MODRST_EMACECC1_SET_MSK | \
+ ALT_RSTMGR_PER0MODRST_EMACECC2_SET_MSK | \
+ ALT_RSTMGR_PER0MODRST_NANDECC_SET_MSK | \
+ ALT_RSTMGR_PER0MODRST_QSPIECC_SET_MSK | \
+ ALT_RSTMGR_PER0MODRST_SDMMCECC_SET_MSK)
+
+void socfpga_reset_uart(int assert)
+{
+ u32 mask = 0;
+ unsigned int com_port;
+
+ com_port = uart_com_port(gd->fdt_blob);
+
+ if (com_port == SOCFPGA_UART1_ADDRESS)
+ mask |= ALT_RSTMGR_PER1MODRST_UART1_SET_MSK;
+ else if (com_port == SOCFPGA_UART0_ADDRESS)
+ mask |= ALT_RSTMGR_PER1MODRST_UART0_SET_MSK;
+
+ if (assert)
+ setbits_le32(&reset_manager_base->per1modrst, mask);
+ else
+ clrbits_le32(&reset_manager_base->per1modrst, mask);
+}
+
+static const u32 per0fpgamasks[] = {
+ ALT_RSTMGR_PER0MODRST_EMACECC0_SET_MSK |
+ ALT_RSTMGR_PER0MODRST_EMAC0_SET_MSK,
+ ALT_RSTMGR_PER0MODRST_EMACECC1_SET_MSK |
+ ALT_RSTMGR_PER0MODRST_EMAC1_SET_MSK,
+ ALT_RSTMGR_PER0MODRST_EMACECC2_SET_MSK |
+ ALT_RSTMGR_PER0MODRST_EMAC2_SET_MSK,
+ 0, /* i2c0 per1mod */
+ 0, /* i2c1 per1mod */
+ 0, /* i2c0_emac */
+ 0, /* i2c1_emac */
+ 0, /* i2c2_emac */
+ ALT_RSTMGR_PER0MODRST_NANDECC_SET_MSK |
+ ALT_RSTMGR_PER0MODRST_NAND_SET_MSK,
+ ALT_RSTMGR_PER0MODRST_QSPIECC_SET_MSK |
+ ALT_RSTMGR_PER0MODRST_QSPI_SET_MSK,
+ ALT_RSTMGR_PER0MODRST_SDMMCECC_SET_MSK |
+ ALT_RSTMGR_PER0MODRST_SDMMC_SET_MSK,
+ ALT_RSTMGR_PER0MODRST_SPIM0_SET_MSK,
+ ALT_RSTMGR_PER0MODRST_SPIM1_SET_MSK,
+ ALT_RSTMGR_PER0MODRST_SPIS0_SET_MSK,
+ ALT_RSTMGR_PER0MODRST_SPIS1_SET_MSK,
+ 0, /* uart0 per1mod */
+ 0, /* uart1 per1mod */
+};
+
+static const u32 per1fpgamasks[] = {
+ 0, /* emac0 per0mod */
+ 0, /* emac1 per0mod */
+ 0, /* emac2 per0mod */
+ ALT_RSTMGR_PER1MODRST_I2C0_SET_MSK,
+ ALT_RSTMGR_PER1MODRST_I2C1_SET_MSK,
+ ALT_RSTMGR_PER1MODRST_I2C2_SET_MSK, /* i2c0_emac */
+ ALT_RSTMGR_PER1MODRST_I2C3_SET_MSK, /* i2c1_emac */
+ ALT_RSTMGR_PER1MODRST_I2C4_SET_MSK, /* i2c2_emac */
+ 0, /* nand per0mod */
+ 0, /* qspi per0mod */
+ 0, /* sdmmc per0mod */
+ 0, /* spim0 per0mod */
+ 0, /* spim1 per0mod */
+ 0, /* spis0 per0mod */
+ 0, /* spis1 per0mod */
+ ALT_RSTMGR_PER1MODRST_UART0_SET_MSK,
+ ALT_RSTMGR_PER1MODRST_UART1_SET_MSK,
+};
+
+struct bridge_cfg {
+ int compat_id;
+ u32 mask_noc;
+ u32 mask_rstmgr;
+};
+
+static const struct bridge_cfg bridge_cfg_tbl[] = {
+ {
+ COMPAT_ALTERA_SOCFPGA_H2F_BRG,
+ ALT_SYSMGR_NOC_H2F_SET_MSK,
+ ALT_RSTMGR_BRGMODRST_H2F_SET_MSK,
+ },
+ {
+ COMPAT_ALTERA_SOCFPGA_LWH2F_BRG,
+ ALT_SYSMGR_NOC_LWH2F_SET_MSK,
+ ALT_RSTMGR_BRGMODRST_LWH2F_SET_MSK,
+ },
+ {
+ COMPAT_ALTERA_SOCFPGA_F2H_BRG,
+ ALT_SYSMGR_NOC_F2H_SET_MSK,
+ ALT_RSTMGR_BRGMODRST_F2H_SET_MSK,
+ },
+ {
+ COMPAT_ALTERA_SOCFPGA_F2SDR0,
+ ALT_SYSMGR_NOC_F2SDR0_SET_MSK,
+ ALT_RSTMGR_BRGMODRST_F2SSDRAM0_SET_MSK,
+ },
+ {
+ COMPAT_ALTERA_SOCFPGA_F2SDR1,
+ ALT_SYSMGR_NOC_F2SDR1_SET_MSK,
+ ALT_RSTMGR_BRGMODRST_F2SSDRAM1_SET_MSK,
+ },
+ {
+ COMPAT_ALTERA_SOCFPGA_F2SDR2,
+ ALT_SYSMGR_NOC_F2SDR2_SET_MSK,
+ ALT_RSTMGR_BRGMODRST_F2SSDRAM2_SET_MSK,
+ },
+};
+
+/* Disable the watchdog (toggle reset to watchdog) */
+void socfpga_watchdog_disable(void)
+{
+ /* assert reset for watchdog */
+ setbits_le32(&reset_manager_base->per1modrst,
+ ALT_RSTMGR_PER1MODRST_WD0_SET_MSK);
+}
+
+/* Release NOC ddr scheduler from reset */
+void socfpga_reset_deassert_noc_ddr_scheduler(void)
+{
+ clrbits_le32(&reset_manager_base->brgmodrst,
+ ALT_RSTMGR_BRGMODRST_DDRSCH_SET_MSK);
+}
+
+/* Check whether Watchdog in reset state? */
+int socfpga_is_wdt_in_reset(void)
+{
+ u32 val;
+
+ val = readl(&reset_manager_base->per1modrst);
+ val &= ALT_RSTMGR_PER1MODRST_WD0_SET_MSK;
+
+ /* return 0x1 if watchdog in reset */
+ return val;
+}
+
+/* emacbase: base address of emac to enable/disable reset
+ * state: 0 - disable reset, !0 - enable reset
+ */
+void socfpga_emac_manage_reset(ulong emacbase, u32 state)
+{
+ ulong eccmask;
+ ulong emacmask;
+
+ switch (emacbase) {
+ case SOCFPGA_EMAC0_ADDRESS:
+ eccmask = ALT_RSTMGR_PER0MODRST_EMACECC0_SET_MSK;
+ emacmask = ALT_RSTMGR_PER0MODRST_EMAC0_SET_MSK;
+ break;
+ case SOCFPGA_EMAC1_ADDRESS:
+ eccmask = ALT_RSTMGR_PER0MODRST_EMACECC1_SET_MSK;
+ emacmask = ALT_RSTMGR_PER0MODRST_EMAC1_SET_MSK;
+ break;
+ case SOCFPGA_EMAC2_ADDRESS:
+ eccmask = ALT_RSTMGR_PER0MODRST_EMACECC2_SET_MSK;
+ emacmask = ALT_RSTMGR_PER0MODRST_EMAC2_SET_MSK;
+ break;
+ default:
+ error("emac base address unexpected! %lx", emacbase);
+ hang();
+ break;
+ }
+
+ if (state) {
+ /* Enable ECC OCP first */
+ setbits_le32(&reset_manager_base->per0modrst, eccmask);
+ setbits_le32(&reset_manager_base->per0modrst, emacmask);
+ } else {
+ /* Disable ECC OCP first */
+ clrbits_le32(&reset_manager_base->per0modrst, emacmask);
+ clrbits_le32(&reset_manager_base->per0modrst, eccmask);
+ }
+}
+
+static int get_bridge_init_val(const void *blob, int compat_id)
+{
+ int node;
+
+ node = fdtdec_next_compatible(blob, 0, compat_id);
+ if (node < 0)
+ return 0;
+
+ return fdtdec_get_uint(blob, node, "init-val", 0);
+}
+
+/* Enable bridges (hps2fpga, lwhps2fpga, fpga2hps, fpga2sdram) per handoff */
+int socfpga_reset_deassert_bridges_handoff(void)
+{
+ u32 mask_noc = 0, mask_rstmgr = 0;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(bridge_cfg_tbl); i++) {
+ if (get_bridge_init_val(gd->fdt_blob,
+ bridge_cfg_tbl[i].compat_id)) {
+ mask_noc |= bridge_cfg_tbl[i].mask_noc;
+ mask_rstmgr |= bridge_cfg_tbl[i].mask_rstmgr;
+ }
+ }
+
+ /* clear idle request to all bridges */
+ setbits_le32(&sysmgr_regs->noc_idlereq_clr, mask_noc);
+
+ /* Release bridges from reset state per handoff value */
+ clrbits_le32(&reset_manager_base->brgmodrst, mask_rstmgr);
+
+ /* Poll until all idleack to 0, timeout at 1000ms */
+ return wait_for_bit(__func__, &sysmgr_regs->noc_idleack, mask_noc,
+ false, 1000, false);
+}
+
+void socfpga_reset_assert_fpga_connected_peripherals(void)
+{
+ u32 mask0 = 0;
+ u32 mask1 = 0;
+ u32 fpga_pinux_addr = SOCFPGA_PINMUX_FPGA_INTERFACE_ADDRESS;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(per1fpgamasks); i++) {
+ if (readl(fpga_pinux_addr)) {
+ mask0 |= per0fpgamasks[i];
+ mask1 |= per1fpgamasks[i];
+ }
+ fpga_pinux_addr += sizeof(u32);
+ }
+
+ setbits_le32(&reset_manager_base->per0modrst, mask0 & ECC_MASK);
+ setbits_le32(&reset_manager_base->per1modrst, mask1);
+ setbits_le32(&reset_manager_base->per0modrst, mask0);
+}
+
+/* Release L4 OSC1 Watchdog Timer 0 from reset through reset manager */
+void socfpga_reset_deassert_osc1wd0(void)
+{
+ clrbits_le32(&reset_manager_base->per1modrst,
+ ALT_RSTMGR_PER1MODRST_WD0_SET_MSK);
+}
+
+/*
+ * Assert or de-assert SoCFPGA reset manager reset.
+ */
+void socfpga_per_reset(u32 reset, int set)
+{
+ const u32 *reg;
+ u32 rstmgr_bank = RSTMGR_BANK(reset);
+
+ switch (rstmgr_bank) {
+ case 0:
+ reg = &reset_manager_base->mpumodrst;
+ break;
+ case 1:
+ reg = &reset_manager_base->per0modrst;
+ break;
+ case 2:
+ reg = &reset_manager_base->per1modrst;
+ break;
+ case 3:
+ reg = &reset_manager_base->brgmodrst;
+ break;
+ case 4:
+ reg = &reset_manager_base->sysmodrst;
+ break;
+
+ default:
+ return;
+ }
+
+ if (set)
+ setbits_le32(reg, 1 << RSTMGR_RESET(reset));
+ else
+ clrbits_le32(reg, 1 << RSTMGR_RESET(reset));
+}
+
+/*
+ * Assert reset on every peripheral but L4WD0.
+ * Watchdog must be kept intact to prevent glitches
+ * and/or hangs.
+ * For the Arria10, we disable all the peripherals except L4 watchdog0,
+ * L4 Timer 0, and ECC.
+ */
+void socfpga_per_reset_all(void)
+{
+ const u32 l4wd0 = (1 << RSTMGR_RESET(SOCFPGA_RESET(L4WD0)) |
+ (1 << RSTMGR_RESET(SOCFPGA_RESET(L4SYSTIMER0))));
+ unsigned mask_ecc_ocp =
+ ALT_RSTMGR_PER0MODRST_EMACECC0_SET_MSK |
+ ALT_RSTMGR_PER0MODRST_EMACECC1_SET_MSK |
+ ALT_RSTMGR_PER0MODRST_EMACECC2_SET_MSK |
+ ALT_RSTMGR_PER0MODRST_USBECC0_SET_MSK |
+ ALT_RSTMGR_PER0MODRST_USBECC1_SET_MSK |
+ ALT_RSTMGR_PER0MODRST_NANDECC_SET_MSK |
+ ALT_RSTMGR_PER0MODRST_QSPIECC_SET_MSK |
+ ALT_RSTMGR_PER0MODRST_SDMMCECC_SET_MSK;
+
+ /* disable all components except ECC_OCP, L4 Timer0 and L4 WD0 */
+ writel(~l4wd0, &reset_manager_base->per1modrst);
+ setbits_le32(&reset_manager_base->per0modrst, ~mask_ecc_ocp);
+
+ /* Finally disable the ECC_OCP */
+ setbits_le32(&reset_manager_base->per0modrst, mask_ecc_ocp);
+}
+
+#if defined(CONFIG_SOCFPGA_VIRTUAL_TARGET)
+int socfpga_bridges_reset(int enable)
+{
+ /* For SoCFPGA-VT, this is NOP. */
+ return 0;
+}
+#else
+int socfpga_bridges_reset(int enable)
+{
+ int ret;
+
+ /* Disable all the bridges (hps2fpga, lwhps2fpga, fpga2hps,
+ fpga2sdram) */
+ /* set idle request to all bridges */
+ writel(ALT_SYSMGR_NOC_H2F_SET_MSK |
+ ALT_SYSMGR_NOC_LWH2F_SET_MSK |
+ ALT_SYSMGR_NOC_F2H_SET_MSK |
+ ALT_SYSMGR_NOC_F2SDR0_SET_MSK |
+ ALT_SYSMGR_NOC_F2SDR1_SET_MSK |
+ ALT_SYSMGR_NOC_F2SDR2_SET_MSK,
+ &sysmgr_regs->noc_idlereq_set);
+
+ /* Enable the NOC timeout */
+ writel(ALT_SYSMGR_NOC_TMO_EN_SET_MSK, &sysmgr_regs->noc_timeout);
+
+ /* Poll until all idleack to 1 */
+ ret = wait_for_bit(__func__, &sysmgr_regs->noc_idleack,
+ ALT_SYSMGR_NOC_H2F_SET_MSK |
+ ALT_SYSMGR_NOC_LWH2F_SET_MSK |
+ ALT_SYSMGR_NOC_F2H_SET_MSK |
+ ALT_SYSMGR_NOC_F2SDR0_SET_MSK |
+ ALT_SYSMGR_NOC_F2SDR1_SET_MSK |
+ ALT_SYSMGR_NOC_F2SDR2_SET_MSK,
+ true, 10000, false);
+ if (ret)
+ return ret;
+
+ /* Poll until all idlestatus to 1 */
+ ret = wait_for_bit(__func__, &sysmgr_regs->noc_idlestatus,
+ ALT_SYSMGR_NOC_H2F_SET_MSK |
+ ALT_SYSMGR_NOC_LWH2F_SET_MSK |
+ ALT_SYSMGR_NOC_F2H_SET_MSK |
+ ALT_SYSMGR_NOC_F2SDR0_SET_MSK |
+ ALT_SYSMGR_NOC_F2SDR1_SET_MSK |
+ ALT_SYSMGR_NOC_F2SDR2_SET_MSK,
+ true, 10000, false);
+ if (ret)
+ return ret;
+
+ /* Put all bridges (except NOR DDR scheduler) into reset state */
+ setbits_le32(&reset_manager_base->brgmodrst,
+ (ALT_RSTMGR_BRGMODRST_H2F_SET_MSK |
+ ALT_RSTMGR_BRGMODRST_LWH2F_SET_MSK |
+ ALT_RSTMGR_BRGMODRST_F2H_SET_MSK |
+ ALT_RSTMGR_BRGMODRST_F2SSDRAM0_SET_MSK |
+ ALT_RSTMGR_BRGMODRST_F2SSDRAM1_SET_MSK |
+ ALT_RSTMGR_BRGMODRST_F2SSDRAM2_SET_MSK));
+
+ /* Disable NOC timeout */
+ writel(0, &sysmgr_regs->noc_timeout);
+
+ return 0;
+}
+#endif
diff --git a/include/dt-bindings/reset/altr,rst-mgr-a10.h b/include/dt-bindings/reset/altr,rst-mgr-a10.h
new file mode 100644
index 0000000..99875de
--- /dev/null
+++ b/include/dt-bindings/reset/altr,rst-mgr-a10.h
@@ -0,0 +1,103 @@
+/*
+ * Copyright (C) 2016-2017 Intel Corporation
+ *
+ * SPDX-License-Identifier: GPL-2.0
+ */
+
+#ifndef _DT_BINDINGS_RESET_ALTR_RST_MGR_A10_H
+#define _DT_BINDINGS_RESET_ALTR_RST_MGR_A10_H
+
+/* MPUMODRST */
+#define CPU0_RESET 0
+#define CPU1_RESET 1
+#define WDS_RESET 2
+#define SCUPER_RESET 3
+
+/* PER0MODRST */
+#define EMAC0_RESET 32
+#define EMAC1_RESET 33
+#define EMAC2_RESET 34
+#define USB0_RESET 35
+#define USB1_RESET 36
+#define NAND_RESET 37
+#define QSPI_RESET 38
+#define SDMMC_RESET 39
+#define EMAC0_OCP_RESET 40
+#define EMAC1_OCP_RESET 41
+#define EMAC2_OCP_RESET 42
+#define USB0_OCP_RESET 43
+#define USB1_OCP_RESET 44
+#define NAND_OCP_RESET 45
+#define QSPI_OCP_RESET 46
+#define SDMMC_OCP_RESET 47
+#define DMA_RESET 48
+#define SPIM0_RESET 49
+#define SPIM1_RESET 50
+#define SPIS0_RESET 51
+#define SPIS1_RESET 52
+#define DMA_OCP_RESET 53
+#define EMAC_PTP_RESET 54
+/* 55 is empty*/
+#define DMAIF0_RESET 56
+#define DMAIF1_RESET 57
+#define DMAIF2_RESET 58
+#define DMAIF3_RESET 59
+#define DMAIF4_RESET 60
+#define DMAIF5_RESET 61
+#define DMAIF6_RESET 62
+#define DMAIF7_RESET 63
+
+/* PER1MODRST */
+#define L4WD0_RESET 64
+#define L4WD1_RESET 65
+#define L4SYSTIMER0_RESET 66
+#define L4SYSTIMER1_RESET 67
+#define SPTIMER0_RESET 68
+#define SPTIMER1_RESET 69
+/* 70-71 is reserved */
+#define I2C0_RESET 72
+#define I2C1_RESET 73
+#define I2C2_RESET 74
+#define I2C3_RESET 75
+#define I2C4_RESET 76
+/* 77-79 is reserved */
+#define UART0_RESET 80
+#define UART1_RESET 81
+/* 82-87 is reserved */
+#define GPIO0_RESET 88
+#define GPIO1_RESET 89
+#define GPIO2_RESET 90
+
+/* BRGMODRST */
+#define HPS2FPGA_RESET 96
+#define LWHPS2FPGA_RESET 97
+#define FPGA2HPS_RESET 98
+#define F2SSDRAM0_RESET 99
+#define F2SSDRAM1_RESET 100
+#define F2SSDRAM2_RESET 101
+#define DDRSCH_RESET 102
+
+/* SYSMODRST*/
+#define ROM_RESET 128
+#define OCRAM_RESET 129
+/* 130 is reserved */
+#define FPGAMGR_RESET 131
+#define S2F_RESET 132
+#define SYSDBG_RESET 133
+#define OCRAM_OCP_RESET 134
+
+/* COLDMODRST */
+#define CLKMGRCOLD_RESET 160
+/* 161-162 is reserved */
+#define S2FCOLD_RESET 163
+#define TIMESTAMPCOLD_RESET 164
+#define TAPCOLD_RESET 165
+#define HMCCOLD_RESET 166
+#define IOMGRCOLD_RESET 167
+
+/* NRSTMODRST */
+#define NRSTPINOE_RESET 192
+
+/* DBGMODRST */
+#define DBG_RESET 224
+#endif
--
1.8.2.3
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