Add reset driver support for Arria 10.
Signed-off-by: Tien Fong Chee tien.fong.chee@intel.com Signed-off-by: Ley Foon Tan ley.foon.tan@intel.com --- arch/arm/mach-socfpga/Makefile | 2 + arch/arm/mach-socfpga/include/mach/reset_manager.h | 2 + .../include/mach/reset_manager_arria10.h | 146 ++++++++ arch/arm/mach-socfpga/reset_manager_arria10.c | 383 +++++++++++++++++++++ include/dt-bindings/reset/altr,rst-mgr-a10.h | 110 ++++++ 5 files changed, 643 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..e2b490d --- /dev/null +++ b/arch/arm/mach-socfpga/include/mach/reset_manager_arria10.h @@ -0,0 +1,146 @@ +/* + * Copyright (C) 2016-2017 Intel Corporation + * + * SPDX-License-Identifier: GPL-2.0 + */ + +#ifndef _RESET_MANAGER_ARRIA10_H_ +#define _RESET_MANAGER_ARRIA10_H_ + +#include <dt-bindings/reset/altr,rst-mgr-a10.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..d8c858c --- /dev/null +++ b/arch/arm/mach-socfpga/reset_manager_arria10.c @@ -0,0 +1,383 @@ +/* + * 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) +{ + unsigned int com_port; + + com_port = uart_com_port(gd->fdt_blob); + + if (com_port == SOCFPGA_UART1_ADDRESS) + socfpga_per_reset(SOCFPGA_RESET(UART1), assert); + else if (com_port == SOCFPGA_UART0_ADDRESS) + socfpga_per_reset(SOCFPGA_RESET(UART0), assert); +} + +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..acb0bbf --- /dev/null +++ b/include/dt-bindings/reset/altr,rst-mgr-a10.h @@ -0,0 +1,110 @@ +/* + * Copyright (c) 2014, Steffen Trumtrar s.trumtrar@pengutronix.de + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#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