[U-Boot] [PATCH v2 25/30] arm: socfpga: arria10: Added drivers for Arria10 Reset Manager

Chee Tien Fong
2016-12-28T06:34:36Z

From: Tien Fong Chee <tien.fong.chee@intel.com>

Drivers for reset manager is restructured such that common functions,
gen5 drivers and Arria10 drivers are moved to reset_manager.c,
reset_manager_gen5.c and reset_manager_arria10.c respectively.

Signed-off-by: Tien Fong Chee <tien.fong.chee@intel.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Dinh Nguyen <dinguyen@kernel.org>
Cc: Chin Liang See <chin.liang.see@intel.com>
Cc: Tien Fong <skywindctf@gmail.com>
---
Changes for V2
- Reverted license changes, removing extern and volatile declaration
---
arch/arm/mach-socfpga/Makefile | 16 +-
arch/arm/mach-socfpga/include/mach/reset_manager.h | 155 ++++++--
arch/arm/mach-socfpga/reset_manager.c | 112 +-----
arch/arm/mach-socfpga/reset_manager_arria10.c | 407 +++++++++++++++++++++
.../{reset_manager.c => reset_manager_gen5.c} | 94 ++---
5 files changed, 570 insertions(+), 214 deletions(-)
create mode 100644 arch/arm/mach-socfpga/reset_manager_arria10.c
copy arch/arm/mach-socfpga/{reset_manager.c => reset_manager_gen5.c} (58%)

diff --git a/arch/arm/mach-socfpga/Makefile b/arch/arm/mach-socfpga/Makefile
index 809cd47..b8fcf6e 100644
--- a/arch/arm/mach-socfpga/Makefile
+++ b/arch/arm/mach-socfpga/Makefile
@@ -2,21 +2,27 @@
# (C) Copyright 2000-2003
# Wolfgang Denk, DENX Software Engineering, wd at denx.de.
#
-# Copyright (C) 2012 Altera Corporation <www.altera.com>
+# Copyright (C) 2012-2016 Altera Corporation <www.altera.com>
#
# SPDX-License-Identifier: GPL-2.0+
#

obj-y += misc.o timer.o reset_manager.o system_manager.o clock_manager.o \
fpga_manager.o board.o
+obj-$(CONFIG_TARGET_SOCFPGA_ARRIA10) += reset_manager_arria10.o
+obj-$(CONFIG_TARGET_SOCFPGA_GEN5) += scan_manager.o wrap_pll_config.o \
+ reset_manager_gen5.o

-obj-$(CONFIG_SPL_BUILD) += spl.o freeze_controller.o
+ifdef CONFIG_SPL_BUILD
+obj-y += spl.o
+obj-$(CONFIG_TARGET_SOCFPGA_GEN5) += freeze_controller.o wrap_iocsr_config.o \
+ wrap_pinmux_config.o wrap_sdram_config.o
+endif

+ifdef CONFIG_TARGET_SOCFPGA_GEN5
# QTS-generated config file wrappers
-obj-$(CONFIG_TARGET_SOCFPGA_GEN5) += scan_manager.o wrap_pll_config.o
-obj-$(CONFIG_SPL_BUILD) += wrap_iocsr_config.o wrap_pinmux_config.o \
- wrap_sdram_config.o
CFLAGS_wrap_iocsr_config.o += -I$(srctree)/board/$(BOARDDIR)
CFLAGS_wrap_pinmux_config.o += -I$(srctree)/board/$(BOARDDIR)
CFLAGS_wrap_pll_config.o += -I$(srctree)/board/$(BOARDDIR)
CFLAGS_wrap_sdram_config.o += -I$(srctree)/board/$(BOARDDIR)
+endif
diff --git a/arch/arm/mach-socfpga/include/mach/reset_manager.h b/arch/arm/mach-socfpga/include/mach/reset_manager.h
index 6225118..13f9731 100644
--- a/arch/arm/mach-socfpga/include/mach/reset_manager.h
+++ b/arch/arm/mach-socfpga/include/mach/reset_manager.h
@@ -1,5 +1,5 @@
/*
- * Copyright (C) 2012 Altera Corporation <www.altera.com>
+ * Copyright (C) 2012-2016 Altera Corporation <www.altera.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
@@ -7,15 +7,27 @@
#ifndef _RESET_MANAGER_H_
#define _RESET_MANAGER_H_

+/* Common function prototypes */
void reset_cpu(ulong addr);
-void reset_deassert_peripherals_handoff(void);
-
void socfpga_bridges_reset(int enable);
-
void socfpga_per_reset(u32 reset, int set);
void socfpga_per_reset_all(void);

#if defined(CONFIG_TARGET_SOCFPGA_GEN5)
+void reset_deassert_peripherals_handoff(void);
+#elif defined(CONFIG_TARGET_SOCFPGA_ARRIA10)
+void watchdog_disable(void);
+void reset_deassert_noc_ddr_scheduler(void);
+int is_wdt_in_reset(void);
+void emac_manage_reset(ulong emacbase, uint state);
+int reset_deassert_bridges_handoff(void);
+void reset_assert_fpga_connected_peripherals(void);
+void reset_deassert_osc1wd0(void);
+void reset_assert_uart(void);
+void reset_deassert_uart(void);
+#endif
+
+#if defined(CONFIG_TARGET_SOCFPGA_GEN5)
struct socfpga_reset_manager {
u32 status;
u32 ctrl;
@@ -29,40 +41,40 @@ struct socfpga_reset_manager {
u32 padding2[12];
u32 tstscratch;
};
-#else
+#elif defined(CONFIG_TARGET_SOCFPGA_ARRIA10)
struct socfpga_reset_manager {
- u32 stat;
- u32 ramstat;
- u32 miscstat;
- u32 ctrl;
- u32 hdsken;
- u32 hdskreq;
- u32 hdskack;
- u32 counts;
- u32 mpu_mod_reset;
- u32 per_mod_reset; /* stated as per0_mod_reset in A10 datasheet */
- u32 per2_mod_reset; /* stated as per1_mod_reset in A10 datasheet */
- u32 brg_mod_reset;
- u32 misc_mod_reset; /* stated as sys_mod_reset in A10 datasheet */
- 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;
+ uint32_t stat;
+ uint32_t ramstat;
+ uint32_t miscstat;
+ uint32_t ctrl;
+ uint32_t hdsken;
+ uint32_t hdskreq;
+ uint32_t hdskack;
+ uint32_t counts;
+ uint32_t mpumodrst;
+ uint32_t per0modrst;
+ uint32_t per1modrst;
+ uint32_t brgmodrst;
+ uint32_t sysmodrst;
+ uint32_t coldmodrst;
+ uint32_t nrstmodrst;
+ uint32_t dbgmodrst;
+ uint32_t mpuwarmmask;
+ uint32_t per0warmmask;
+ uint32_t per1warmmask;
+ uint32_t brgwarmmask;
+ uint32_t syswarmmask;
+ uint32_t nrstwarmmask;
+ uint32_t l3warmmask;
+ uint32_t tststa;
+ uint32_t tstscratch;
+ uint32_t hdsktimeout;
+ uint32_t hmcintr;
+ uint32_t hmcintren;
+ uint32_t hmcintrens;
+ uint32_t hmcintrenr;
+ uint32_t hmcgpout;
+ uint32_t hmcgpin;
};
#endif

@@ -113,7 +125,7 @@ struct socfpga_reset_manager {
#define RSTMGR_SDMMC RSTMGR_DEFINE(1, 22)
#define RSTMGR_DMA RSTMGR_DEFINE(1, 28)
#define RSTMGR_SDR RSTMGR_DEFINE(1, 29)
-#else
+#elif defined(CONFIG_TARGET_SOCFPGA_ARRIA10)
/*
* SocFPGA Arria10 reset IDs, bank mapping is as follows:
* 0 ... mpumodrst
@@ -144,4 +156,71 @@ struct socfpga_reset_manager {
/* Create a human-readable reference to SoCFPGA reset. */
#define SOCFPGA_RESET(_name) RSTMGR_##_name

+/* Create a human-readable reference to SoCFPGA reset. */
+#define SOCFPGA_RESET(_name) RSTMGR_##_name
+
+#if defined(CONFIG_TARGET_SOCFPGA_ARRIA10)
+#define ALT_RSTMGR_CTL_SWWARMRSTREQ_SET_MSK 0x00000002
+#define ALT_RSTMGR_PER0MODRST_EMAC0_SET_MSK 0x00000001
+#define ALT_RSTMGR_PER0MODRST_EMAC1_SET_MSK 0x00000002
+#define ALT_RSTMGR_PER0MODRST_EMAC2_SET_MSK 0x00000004
+#define ALT_RSTMGR_PER0MODRST_USB0_SET_MSK 0x00000008
+#define ALT_RSTMGR_PER0MODRST_USB1_SET_MSK 0x00000010
+#define ALT_RSTMGR_PER0MODRST_NAND_SET_MSK 0x00000020
+#define ALT_RSTMGR_PER0MODRST_QSPI_SET_MSK 0x00000040
+#define ALT_RSTMGR_PER0MODRST_SDMMC_SET_MSK 0x00000080
+#define ALT_RSTMGR_PER0MODRST_EMACECC0_SET_MSK 0x00000100
+#define ALT_RSTMGR_PER0MODRST_EMACECC1_SET_MSK 0x00000200
+#define ALT_RSTMGR_PER0MODRST_EMACECC2_SET_MSK 0x00000400
+#define ALT_RSTMGR_PER0MODRST_USBECC0_SET_MSK 0x00000800
+#define ALT_RSTMGR_PER0MODRST_USBECC1_SET_MSK 0x00001000
+#define ALT_RSTMGR_PER0MODRST_NANDECC_SET_MSK 0x00002000
+#define ALT_RSTMGR_PER0MODRST_QSPIECC_SET_MSK 0x00004000
+#define ALT_RSTMGR_PER0MODRST_SDMMCECC_SET_MSK 0x00008000
+#define ALT_RSTMGR_PER0MODRST_DMA_SET_MSK 0x00010000
+#define ALT_RSTMGR_PER0MODRST_SPIM0_SET_MSK 0x00020000
+#define ALT_RSTMGR_PER0MODRST_SPIM1_SET_MSK 0x00040000
+#define ALT_RSTMGR_PER0MODRST_SPIS0_SET_MSK 0x00080000
+#define ALT_RSTMGR_PER0MODRST_SPIS1_SET_MSK 0x00100000
+#define ALT_RSTMGR_PER0MODRST_DMAECC_SET_MSK 0x00200000
+#define ALT_RSTMGR_PER0MODRST_EMACPTP_SET_MSK 0x00400000
+#define ALT_RSTMGR_PER0MODRST_DMAIF0_SET_MSK 0x01000000
+#define ALT_RSTMGR_PER0MODRST_DMAIF1_SET_MSK 0x02000000
+#define ALT_RSTMGR_PER0MODRST_DMAIF2_SET_MSK 0x04000000
+#define ALT_RSTMGR_PER0MODRST_DMAIF3_SET_MSK 0x08000000
+#define ALT_RSTMGR_PER0MODRST_DMAIF4_SET_MSK 0x10000000
+#define ALT_RSTMGR_PER0MODRST_DMAIF5_SET_MSK 0x20000000
+#define ALT_RSTMGR_PER0MODRST_DMAIF6_SET_MSK 0x40000000
+#define ALT_RSTMGR_PER0MODRST_DMAIF7_SET_MSK 0x80000000
+
+#define ALT_RSTMGR_PER1MODRST_WD0_SET_MSK 0x00000001
+#define ALT_RSTMGR_PER1MODRST_WD1_SET_MSK 0x00000002
+#define ALT_RSTMGR_PER1MODRST_L4SYSTMR0_SET_MSK 0x00000004
+#define ALT_RSTMGR_PER1MODRST_L4SYSTMR1_SET_MSK 0x00000008
+#define ALT_RSTMGR_PER1MODRST_SPTMR0_SET_MSK 0x00000010
+#define ALT_RSTMGR_PER1MODRST_SPTMR1_SET_MSK 0x00000020
+#define ALT_RSTMGR_PER1MODRST_I2C0_SET_MSK 0x00000100
+#define ALT_RSTMGR_PER1MODRST_I2C1_SET_MSK 0x00000200
+#define ALT_RSTMGR_PER1MODRST_I2C2_SET_MSK 0x00000400
+#define ALT_RSTMGR_PER1MODRST_I2C3_SET_MSK 0x00000800
+#define ALT_RSTMGR_PER1MODRST_I2C4_SET_MSK 0x00001000
+#define ALT_RSTMGR_PER1MODRST_UART0_SET_MSK 0x00010000
+#define ALT_RSTMGR_PER1MODRST_UART1_SET_MSK 0x00020000
+#define ALT_RSTMGR_PER1MODRST_GPIO0_SET_MSK 0x01000000
+#define ALT_RSTMGR_PER1MODRST_GPIO1_SET_MSK 0x02000000
+#define ALT_RSTMGR_PER1MODRST_GPIO2_SET_MSK 0x04000000
+
+#define ALT_RSTMGR_BRGMODRST_H2F_SET_MSK 0x00000001
+#define ALT_RSTMGR_BRGMODRST_LWH2F_SET_MSK 0x00000002
+#define ALT_RSTMGR_BRGMODRST_F2H_SET_MSK 0x00000004
+#define ALT_RSTMGR_BRGMODRST_F2SSDRAM0_SET_MSK 0x00000008
+#define ALT_RSTMGR_BRGMODRST_F2SSDRAM1_SET_MSK 0x00000010
+#define ALT_RSTMGR_BRGMODRST_F2SSDRAM2_SET_MSK 0x00000020
+#define ALT_RSTMGR_BRGMODRST_DDRSCH_SET_MSK 0x00000040
+
+#define ALT_RSTMGR_HDSKEN_SDRSELFREFEN_SET_MSK 0x00000001
+#define ALT_RSTMGR_HDSKEN_FPGAMGRHSEN_SET_MSK 0x00000002
+#define ALT_RSTMGR_HDSKEN_FPGAHSEN_SET_MSK 0x00000004
+#define ALT_RSTMGR_HDSKEN_ETRSTALLEN_SET_MSK 0x00000008
+#endif
#endif /* _RESET_MANAGER_H_ */
diff --git a/arch/arm/mach-socfpga/reset_manager.c b/arch/arm/mach-socfpga/reset_manager.c
index d0ff6c4..cc370dc 100644
--- a/arch/arm/mach-socfpga/reset_manager.c
+++ b/arch/arm/mach-socfpga/reset_manager.c
@@ -1,5 +1,5 @@
/*
- * Copyright (C) 2013 Altera Corporation <www.altera.com>
+ * Copyright (C) 2013-2016 Altera Corporation <www.altera.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
@@ -7,71 +7,12 @@

#include <common.h>
#include <asm/io.h>
-#include <asm/arch/fpga_manager.h>
#include <asm/arch/reset_manager.h>
-#include <asm/arch/system_manager.h>

DECLARE_GLOBAL_DATA_PTR;

static const struct socfpga_reset_manager *reset_manager_base =
(void *)SOCFPGA_RSTMGR_ADDRESS;
-static struct socfpga_system_manager *sysmgr_regs =
- (struct socfpga_system_manager *)SOCFPGA_SYSMGR_ADDRESS;
-
-/*
- * Assert or de-assert SoCFPGA reset manager reset.
- */
-void socfpga_per_reset(u32 reset, int set)
-{
- const void *reg;
-
- if (RSTMGR_BANK(reset) == 0)
- reg = &reset_manager_base->mpu_mod_reset;
- else if (RSTMGR_BANK(reset) == 1)
- reg = &reset_manager_base->per_mod_reset;
- else if (RSTMGR_BANK(reset) == 2)
- reg = &reset_manager_base->per2_mod_reset;
- else if (RSTMGR_BANK(reset) == 3)
- reg = &reset_manager_base->brg_mod_reset;
- else if (RSTMGR_BANK(reset) == 4)
- reg = &reset_manager_base->misc_mod_reset;
- else /* Invalid reset register, do nothing */
- 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)
-{
-#if defined(CONFIG_TARGET_SOCFPGA_GEN5)
- const u32 l4wd0 = 1 << RSTMGR_RESET(SOCFPGA_RESET(L4WD0));
-
- writel(~l4wd0, &reset_manager_base->per_mod_reset);
- writel(0xffffffff, &reset_manager_base->per2_mod_reset);
-#else
- const u32 l4wd0 = (1 << RSTMGR_RESET(SOCFPGA_RESET(L4WD0)) |
- (1 << RSTMGR_RESET(SOCFPGA_RESET(L4SYSTIMER0))));
-
- unsigned mask_ecc_ocp = 0x0000FF00;
-
- /* disable all components except ECC_OCP, L4 Timer0 and L4 WD0 */
- writel(~l4wd0, &reset_manager_base->per1_mod_reset);
- setbits_le32(&reset_manager_base->per0_mod_reset, ~mask_ecc_ocp);
-
- /* Finally disable the ECC_OCP */
- setbits_le32(&reset_manager_base->per0_mod_reset, mask_ecc_ocp);
-#endif
-}

/*
* Write the reset manager register to cause reset
@@ -89,54 +30,3 @@ void reset_cpu(ulong addr)
;
}

-#if defined(CONFIG_TARGET_SOCFPGA_GEN5)
-/*
- * Release peripherals from reset based on handoff
- */
-void reset_deassert_peripherals_handoff(void)
-{
- writel(0, &reset_manager_base->per_mod_reset);
-}
-#endif
-
-#if defined(CONFIG_SOCFPGA_VIRTUAL_TARGET)
-void socfpga_bridges_reset(int enable)
-{
- /* For SoCFPGA-VT, this is NOP. */
-}
-#else
-
-#define L3REGS_REMAP_LWHPS2FPGA_MASK 0x10
-#define L3REGS_REMAP_HPS2FPGA_MASK 0x08
-#define L3REGS_REMAP_OCRAM_MASK 0x01
-
-void socfpga_bridges_reset(int enable)
-{
-#if defined(CONFIG_TARGET_SOCFPGA_GEN5)
- const uint32_t l3mask = L3REGS_REMAP_LWHPS2FPGA_MASK |
- L3REGS_REMAP_HPS2FPGA_MASK |
- L3REGS_REMAP_OCRAM_MASK;
-
- if (enable) {
- /* brdmodrst */
- writel(0xffffffff, &reset_manager_base->brg_mod_reset);
- } else {
- writel(0, &sysmgr_regs->iswgrp_handoff[0]);
- writel(l3mask, &sysmgr_regs->iswgrp_handoff[1]);
-
- /* Check signal from FPGA. */
- if (!fpgamgr_test_fpga_ready()) {
- /* FPGA not ready, do nothing. */
- printf("%s: FPGA not ready, aborting.\n", __func__);
- return;
- }
-
- /* brdmodrst */
- writel(0, &reset_manager_base->brg_mod_reset);
-
- /* Remap the bridges into memory map */
- writel(l3mask, SOCFPGA_L3REGS_ADDRESS);
- }
-#endif
-}
-#endif
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..66ccebc
--- /dev/null
+++ b/arch/arm/mach-socfpga/reset_manager_arria10.c
@@ -0,0 +1,407 @@
+/*
+ * Copyright (C) 2016, Intel Corporation
+ *
+ * SPDX-License-Identifier: GPL-2.0
+ */
+
+#include <common.h>
+#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 <fdtdec.h>
+#include <errno.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;
+
+static int get_bridge_init_val(const void *blob, int compat_id);
+
+#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 reset_assert_uart(void)
+{
+ u32 mask = 0;
+ unsigned int com_port;
+
+ com_port = uart_com_port(gd->fdt_blob);
+
+ if (SOCFPGA_UART1_ADDRESS == com_port)
+ mask |= ALT_RSTMGR_PER1MODRST_UART1_SET_MSK;
+ else if (SOCFPGA_UART0_ADDRESS == com_port)
+ mask |= ALT_RSTMGR_PER1MODRST_UART0_SET_MSK;
+
+ setbits_le32(&reset_manager_base->per1modrst, mask);
+}
+
+void reset_deassert_uart(void)
+{
+ u32 mask = 0;
+ unsigned int com_port;
+
+ com_port = uart_com_port(gd->fdt_blob);
+
+ if (SOCFPGA_UART1_ADDRESS == com_port)
+ mask |= ALT_RSTMGR_PER1MODRST_UART1_SET_MSK;
+ else if (SOCFPGA_UART0_ADDRESS == com_port)
+ mask |= ALT_RSTMGR_PER1MODRST_UART0_SET_MSK;
+
+ clrbits_le32(&reset_manager_base->per1modrst, mask);
+}
+
+static const uint32_t 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 uint32_t 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 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 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 is_wdt_in_reset(void)
+{
+ unsigned long 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 emac_manage_reset(ulong emacbase, uint 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 rval = 0;
+ int node;
+ u32 val;
+
+ node = fdtdec_next_compatible(blob, 0, compat_id);
+ if (node >= 0) {
+ if (!fdtdec_get_int_array(blob, node, "init-val", &val, 1)) {
+ if (val == 1)
+ rval = val;
+ }
+ }
+ return rval;
+}
+
+/* Enable bridges (hps2fpga, lwhps2fpga, fpga2hps, fpga2sdram) per handoff */
+int reset_deassert_bridges_handoff(void)
+{
+ u32 mask_noc = 0, mask_rstmgr = 0;
+ int i;
+ unsigned start = get_timer(0);
+
+ 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 */
+ while (readl(&sysmgr_regs->noc_idleack) & mask_noc) {
+ if (get_timer(start) > 1000) {
+ printf("Fail: noc_idleack = 0x%08x mask_noc = 0x%08x\n",
+ readl(&sysmgr_regs->noc_idleack),
+ mask_noc);
+ return -ETIMEDOUT;
+ }
+ }
+ return 0;
+}
+
+void reset_assert_fpga_connected_peripherals(void)
+{
+ uint32_t mask0 = 0;
+ uint32_t mask1 = 0;
+ uint32_t 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(uint32_t);
+ }
+
+ 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 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 volatile uint32_t *reg;
+ uint32_t 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)
+void socfpga_bridges_reset(int enable)
+{
+ /* For SoCFPGA-VT, this is NOP. */
+}
+#else
+void socfpga_bridges_reset(int enable)
+{
+/* 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 */
+ while ((readl(&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)))
+ ;
+
+ /* Poll until all idlestatus to 1 */
+ while ((readl(&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)))
+ ;
+
+ /* 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);
+}
+#endif
diff --git a/arch/arm/mach-socfpga/reset_manager.c b/arch/arm/mach-socfpga/reset_manager_gen5.c
similarity index 58%
copy from arch/arm/mach-socfpga/reset_manager.c
copy to arch/arm/mach-socfpga/reset_manager_gen5.c
index d0ff6c4..8c1f96e 100644
--- a/arch/arm/mach-socfpga/reset_manager.c
+++ b/arch/arm/mach-socfpga/reset_manager_gen5.c
@@ -1,10 +1,9 @@
/*
- * Copyright (C) 2013 Altera Corporation <www.altera.com>
+ * Copyright (C) 2016, Intel Corporation
*
- * SPDX-License-Identifier: GPL-2.0+
+ * SPDX-License-Identifier: GPL-2.0
*/

-
#include <common.h>
#include <asm/io.h>
#include <asm/arch/fpga_manager.h>
@@ -15,28 +14,45 @@ DECLARE_GLOBAL_DATA_PTR;

static const struct socfpga_reset_manager *reset_manager_base =
(void *)SOCFPGA_RSTMGR_ADDRESS;
-static struct socfpga_system_manager *sysmgr_regs =
+static const struct socfpga_system_manager *sysmgr_regs =
(struct socfpga_system_manager *)SOCFPGA_SYSMGR_ADDRESS;

/*
+ * Release peripherals from reset based on handoff
+ */
+void reset_deassert_peripherals_handoff(void)
+{
+ writel(0, &reset_manager_base->per_mod_reset);
+}
+
+/*
* Assert or de-assert SoCFPGA reset manager reset.
*/
void socfpga_per_reset(u32 reset, int set)
{
- const void *reg;
-
- if (RSTMGR_BANK(reset) == 0)
- reg = &reset_manager_base->mpu_mod_reset;
- else if (RSTMGR_BANK(reset) == 1)
- reg = &reset_manager_base->per_mod_reset;
- else if (RSTMGR_BANK(reset) == 2)
- reg = &reset_manager_base->per2_mod_reset;
- else if (RSTMGR_BANK(reset) == 3)
- reg = &reset_manager_base->brg_mod_reset;
- else if (RSTMGR_BANK(reset) == 4)
- reg = &reset_manager_base->misc_mod_reset;
- else /* Invalid reset register, do nothing */
- return;
+ const volatile uint32_t *reg;
+ uint32_t rstmgr_bank = RSTMGR_BANK(reset);
+
+ switch (rstmgr_bank) {
+ case 0:
+ reg = &reset_manager_base->mpu_mod_reset;
+ break;
+ case 1:
+ reg = &reset_manager_base->per_mod_reset;
+ break;
+ case 2:
+ reg = &reset_manager_base->per2_mod_reset;
+ break;
+ case 3:
+ reg = &reset_manager_base->brg_mod_reset;
+ break;
+ case 4:
+ reg = &reset_manager_base->misc_mod_reset;
+ break;
+
+ default:
+ return;
+ }

if (set)
setbits_le32(reg, 1 << RSTMGR_RESET(reset));
@@ -53,52 +69,12 @@ void socfpga_per_reset(u32 reset, int set)
*/
void socfpga_per_reset_all(void)
{
-#if defined(CONFIG_TARGET_SOCFPGA_GEN5)
const u32 l4wd0 = 1 << RSTMGR_RESET(SOCFPGA_RESET(L4WD0));

writel(~l4wd0, &reset_manager_base->per_mod_reset);
writel(0xffffffff, &reset_manager_base->per2_mod_reset);
-#else
- const u32 l4wd0 = (1 << RSTMGR_RESET(SOCFPGA_RESET(L4WD0)) |
- (1 << RSTMGR_RESET(SOCFPGA_RESET(L4SYSTIMER0))));
-
- unsigned mask_ecc_ocp = 0x0000FF00;
-
- /* disable all components except ECC_OCP, L4 Timer0 and L4 WD0 */
- writel(~l4wd0, &reset_manager_base->per1_mod_reset);
- setbits_le32(&reset_manager_base->per0_mod_reset, ~mask_ecc_ocp);
-
- /* Finally disable the ECC_OCP */
- setbits_le32(&reset_manager_base->per0_mod_reset, mask_ecc_ocp);
-#endif
}

-/*
- * Write the reset manager register to cause reset
- */
-void reset_cpu(ulong addr)
-{
- /* request a warm reset */
- writel((1 << RSTMGR_CTRL_SWWARMRSTREQ_LSB),
- &reset_manager_base->ctrl);
- /*
- * infinite loop here as watchdog will trigger and reset
- * the processor
- */
- while (1)
- ;
-}
-
-#if defined(CONFIG_TARGET_SOCFPGA_GEN5)
-/*
- * Release peripherals from reset based on handoff
- */
-void reset_deassert_peripherals_handoff(void)
-{
- writel(0, &reset_manager_base->per_mod_reset);
-}
-#endif
-
#if defined(CONFIG_SOCFPGA_VIRTUAL_TARGET)
void socfpga_bridges_reset(int enable)
{
@@ -112,7 +88,6 @@ void socfpga_bridges_reset(int enable)

void socfpga_bridges_reset(int enable)
{
-#if defined(CONFIG_TARGET_SOCFPGA_GEN5)
const uint32_t l3mask = L3REGS_REMAP_LWHPS2FPGA_MASK |
L3REGS_REMAP_HPS2FPGA_MASK |
L3REGS_REMAP_OCRAM_MASK;
@@ -137,6 +112,5 @@ void socfpga_bridges_reset(int enable)
/* Remap the bridges into memory map */
writel(l3mask, SOCFPGA_L3REGS_ADDRESS);
}
-#endif
}
#endif
--
2.2.2