obj-y += board.o
obj-y += clock_manager.o
-obj-y += fpga_manager.o
obj-y += misc.o
obj-y += reset_manager.o
obj-y += timer.o
obj-y += scan_manager.o
obj-y += system_manager_gen5.o
obj-y += wrap_pll_config.o
+obj-y += fpga_manager.o
endif
ifdef CONFIG_TARGET_SOCFPGA_ARRIA10
/*
- * Copyright (C) 2012 Altera Corporation <www.altera.com>
+ * Copyright (C) 2012-2017 Altera Corporation <www.altera.com>
* All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
#include <altera.h>
-struct socfpga_fpga_manager {
- /* FPGA Manager Module */
- u32 stat; /* 0x00 */
- u32 ctrl;
- u32 dclkcnt;
- u32 dclkstat;
- u32 gpo; /* 0x10 */
- u32 gpi;
- u32 misci; /* 0x18 */
- u32 _pad_0x1c_0x82c[517];
-
- /* Configuration Monitor (MON) Registers */
- u32 gpio_inten; /* 0x830 */
- u32 gpio_intmask;
- u32 gpio_inttype_level;
- u32 gpio_int_polarity;
- u32 gpio_intstatus; /* 0x840 */
- u32 gpio_raw_intstatus;
- u32 _pad_0x848;
- u32 gpio_porta_eoi;
- u32 gpio_ext_porta; /* 0x850 */
- u32 _pad_0x854_0x85c[3];
- u32 gpio_1s_sync; /* 0x860 */
- u32 _pad_0x864_0x868[2];
- u32 gpio_ver_id_code;
- u32 gpio_config_reg2; /* 0x870 */
- u32 gpio_config_reg1;
-};
-
-#define FPGAMGRREGS_STAT_MODE_MASK 0x7
-#define FPGAMGRREGS_STAT_MSEL_MASK 0xf8
-#define FPGAMGRREGS_STAT_MSEL_LSB 3
-
-#define FPGAMGRREGS_CTRL_CFGWDTH_MASK 0x200
-#define FPGAMGRREGS_CTRL_AXICFGEN_MASK 0x100
-#define FPGAMGRREGS_CTRL_NCONFIGPULL_MASK 0x4
-#define FPGAMGRREGS_CTRL_NCE_MASK 0x2
-#define FPGAMGRREGS_CTRL_EN_MASK 0x1
-#define FPGAMGRREGS_CTRL_CDRATIO_LSB 6
-
-#define FPGAMGRREGS_MON_GPIO_EXT_PORTA_CRC_MASK 0x8
-#define FPGAMGRREGS_MON_GPIO_EXT_PORTA_ID_MASK 0x4
-#define FPGAMGRREGS_MON_GPIO_EXT_PORTA_CD_MASK 0x2
-#define FPGAMGRREGS_MON_GPIO_EXT_PORTA_NS_MASK 0x1
-
-/* FPGA Mode */
-#define FPGAMGRREGS_MODE_FPGAOFF 0x0
-#define FPGAMGRREGS_MODE_RESETPHASE 0x1
-#define FPGAMGRREGS_MODE_CFGPHASE 0x2
-#define FPGAMGRREGS_MODE_INITPHASE 0x3
-#define FPGAMGRREGS_MODE_USERMODE 0x4
-#define FPGAMGRREGS_MODE_UNKNOWN 0x5
+#if defined(CONFIG_TARGET_SOCFPGA_GEN5)
+#include <asm/arch/fpga_manager_gen5.h>
+#endif
/* FPGA CD Ratio Value */
#define CDRATIO_x1 0x0
#define CDRATIO_x4 0x2
#define CDRATIO_x8 0x3
-/* SoCFPGA support functions */
-int fpgamgr_test_fpga_ready(void);
-int fpgamgr_poll_fpga_ready(void);
+#ifndef __ASSEMBLY__
+
+/* Common prototypes */
int fpgamgr_get_mode(void);
+int fpgamgr_poll_fpga_ready(void);
+void fpgamgr_program_write(const void *rbf_data, size_t rbf_size);
+int fpgamgr_test_fpga_ready(void);
+int fpgamgr_dclkcnt_set(unsigned long cnt);
+#endif /* __ASSEMBLY__ */
#endif /* _FPGA_MANAGER_H_ */
--- /dev/null
+/*
+ * Copyright (C) 2012-2017 Altera Corporation <www.altera.com>
+ * All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef _FPGA_MANAGER_GEN5_H_
+#define _FPGA_MANAGER_GEN5_H_
+
+#define FPGAMGRREGS_STAT_MODE_MASK 0x7
+#define FPGAMGRREGS_STAT_MSEL_MASK 0xf8
+#define FPGAMGRREGS_STAT_MSEL_LSB 3
+
+#define FPGAMGRREGS_CTRL_CFGWDTH_MASK BIT(9)
+#define FPGAMGRREGS_CTRL_AXICFGEN_MASK BIT(8)
+#define FPGAMGRREGS_CTRL_NCONFIGPULL_MASK BIT(2)
+#define FPGAMGRREGS_CTRL_NCE_MASK BIT(1)
+#define FPGAMGRREGS_CTRL_EN_MASK BIT(0)
+#define FPGAMGRREGS_CTRL_CDRATIO_LSB 6
+
+#define FPGAMGRREGS_MON_GPIO_EXT_PORTA_CRC_MASK BIT(3)
+#define FPGAMGRREGS_MON_GPIO_EXT_PORTA_ID_MASK BIT(2)
+#define FPGAMGRREGS_MON_GPIO_EXT_PORTA_CD_MASK BIT(1)
+#define FPGAMGRREGS_MON_GPIO_EXT_PORTA_NS_MASK BIT(0)
+
+/* FPGA Mode */
+#define FPGAMGRREGS_MODE_FPGAOFF 0x0
+#define FPGAMGRREGS_MODE_RESETPHASE 0x1
+#define FPGAMGRREGS_MODE_CFGPHASE 0x2
+#define FPGAMGRREGS_MODE_INITPHASE 0x3
+#define FPGAMGRREGS_MODE_USERMODE 0x4
+#define FPGAMGRREGS_MODE_UNKNOWN 0x5
+
+#ifndef __ASSEMBLY__
+
+struct socfpga_fpga_manager {
+ /* FPGA Manager Module */
+ u32 stat; /* 0x00 */
+ u32 ctrl;
+ u32 dclkcnt;
+ u32 dclkstat;
+ u32 gpo; /* 0x10 */
+ u32 gpi;
+ u32 misci; /* 0x18 */
+ u32 _pad_0x1c_0x82c[517];
+
+ /* Configuration Monitor (MON) Registers */
+ u32 gpio_inten; /* 0x830 */
+ u32 gpio_intmask;
+ u32 gpio_inttype_level;
+ u32 gpio_int_polarity;
+ u32 gpio_intstatus; /* 0x840 */
+ u32 gpio_raw_intstatus;
+ u32 _pad_0x848;
+ u32 gpio_porta_eoi;
+ u32 gpio_ext_porta; /* 0x850 */
+ u32 _pad_0x854_0x85c[3];
+ u32 gpio_1s_sync; /* 0x860 */
+ u32 _pad_0x864_0x868[2];
+ u32 gpio_ver_id_code;
+ u32 gpio_config_reg2; /* 0x870 */
+ u32 gpio_config_reg1;
+};
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* _FPGA_MANAGER_GEN5_H_ */
obj-$(CONFIG_FPGA_STRATIX_II) += stratixII.o
obj-$(CONFIG_FPGA_STRATIX_V) += stratixv.o
obj-$(CONFIG_FPGA_SOCFPGA) += socfpga.o
+obj-$(CONFIG_TARGET_SOCFPGA_GEN5) += socfpga_gen5.o
endif
static struct socfpga_fpga_manager *fpgamgr_regs =
(struct socfpga_fpga_manager *)SOCFPGA_FPGAMGRREGS_ADDRESS;
-static struct socfpga_system_manager *sysmgr_regs =
- (struct socfpga_system_manager *)SOCFPGA_SYSMGR_ADDRESS;
-/* Set CD ratio */
-static void fpgamgr_set_cd_ratio(unsigned long ratio)
-{
- clrsetbits_le32(&fpgamgr_regs->ctrl,
- 0x3 << FPGAMGRREGS_CTRL_CDRATIO_LSB,
- (ratio & 0x3) << FPGAMGRREGS_CTRL_CDRATIO_LSB);
-}
-
-static int fpgamgr_dclkcnt_set(unsigned long cnt)
+int fpgamgr_dclkcnt_set(unsigned long cnt)
{
unsigned long i;
return -ETIMEDOUT;
}
-/* Start the FPGA programming by initialize the FPGA Manager */
-static int fpgamgr_program_init(void)
-{
- unsigned long msel, i;
-
- /* Get the MSEL value */
- msel = readl(&fpgamgr_regs->stat);
- msel &= FPGAMGRREGS_STAT_MSEL_MASK;
- msel >>= FPGAMGRREGS_STAT_MSEL_LSB;
-
- /*
- * Set the cfg width
- * If MSEL[3] = 1, cfg width = 32 bit
- */
- if (msel & 0x8) {
- setbits_le32(&fpgamgr_regs->ctrl,
- FPGAMGRREGS_CTRL_CFGWDTH_MASK);
-
- /* To determine the CD ratio */
- /* MSEL[1:0] = 0, CD Ratio = 1 */
- if ((msel & 0x3) == 0x0)
- fpgamgr_set_cd_ratio(CDRATIO_x1);
- /* MSEL[1:0] = 1, CD Ratio = 4 */
- else if ((msel & 0x3) == 0x1)
- fpgamgr_set_cd_ratio(CDRATIO_x4);
- /* MSEL[1:0] = 2, CD Ratio = 8 */
- else if ((msel & 0x3) == 0x2)
- fpgamgr_set_cd_ratio(CDRATIO_x8);
-
- } else { /* MSEL[3] = 0 */
- clrbits_le32(&fpgamgr_regs->ctrl,
- FPGAMGRREGS_CTRL_CFGWDTH_MASK);
-
- /* To determine the CD ratio */
- /* MSEL[1:0] = 0, CD Ratio = 1 */
- if ((msel & 0x3) == 0x0)
- fpgamgr_set_cd_ratio(CDRATIO_x1);
- /* MSEL[1:0] = 1, CD Ratio = 2 */
- else if ((msel & 0x3) == 0x1)
- fpgamgr_set_cd_ratio(CDRATIO_x2);
- /* MSEL[1:0] = 2, CD Ratio = 4 */
- else if ((msel & 0x3) == 0x2)
- fpgamgr_set_cd_ratio(CDRATIO_x4);
- }
-
- /* To enable FPGA Manager configuration */
- clrbits_le32(&fpgamgr_regs->ctrl, FPGAMGRREGS_CTRL_NCE_MASK);
-
- /* To enable FPGA Manager drive over configuration line */
- setbits_le32(&fpgamgr_regs->ctrl, FPGAMGRREGS_CTRL_EN_MASK);
-
- /* Put FPGA into reset phase */
- setbits_le32(&fpgamgr_regs->ctrl, FPGAMGRREGS_CTRL_NCONFIGPULL_MASK);
-
- /* (1) wait until FPGA enter reset phase */
- for (i = 0; i < FPGA_TIMEOUT_CNT; i++) {
- if (fpgamgr_get_mode() == FPGAMGRREGS_MODE_RESETPHASE)
- break;
- }
-
- /* If not in reset state, return error */
- if (fpgamgr_get_mode() != FPGAMGRREGS_MODE_RESETPHASE) {
- puts("FPGA: Could not reset\n");
- return -1;
- }
-
- /* Release FPGA from reset phase */
- clrbits_le32(&fpgamgr_regs->ctrl, FPGAMGRREGS_CTRL_NCONFIGPULL_MASK);
-
- /* (2) wait until FPGA enter configuration phase */
- for (i = 0; i < FPGA_TIMEOUT_CNT; i++) {
- if (fpgamgr_get_mode() == FPGAMGRREGS_MODE_CFGPHASE)
- break;
- }
-
- /* If not in configuration state, return error */
- if (fpgamgr_get_mode() != FPGAMGRREGS_MODE_CFGPHASE) {
- puts("FPGA: Could not configure\n");
- return -2;
- }
-
- /* Clear all interrupts in CB Monitor */
- writel(0xFFF, &fpgamgr_regs->gpio_porta_eoi);
-
- /* Enable AXI configuration */
- setbits_le32(&fpgamgr_regs->ctrl, FPGAMGRREGS_CTRL_AXICFGEN_MASK);
-
- return 0;
-}
-
/* Write the RBF data to FPGA Manager */
-static void fpgamgr_program_write(const void *rbf_data, unsigned long rbf_size)
+void fpgamgr_program_write(const void *rbf_data, size_t rbf_size)
{
uint32_t src = (uint32_t)rbf_data;
uint32_t dst = SOCFPGA_FPGAMGRDATA_ADDRESS;
: "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", "cc");
}
-/* Ensure the FPGA entering config done */
-static int fpgamgr_program_poll_cd(void)
-{
- const uint32_t mask = FPGAMGRREGS_MON_GPIO_EXT_PORTA_NS_MASK |
- FPGAMGRREGS_MON_GPIO_EXT_PORTA_CD_MASK;
- unsigned long reg, i;
-
- /* (3) wait until full config done */
- for (i = 0; i < FPGA_TIMEOUT_CNT; i++) {
- reg = readl(&fpgamgr_regs->gpio_ext_porta);
-
- /* Config error */
- if (!(reg & mask)) {
- printf("FPGA: Configuration error.\n");
- return -3;
- }
-
- /* Config done without error */
- if (reg & mask)
- break;
- }
-
- /* Timeout happened, return error */
- if (i == FPGA_TIMEOUT_CNT) {
- printf("FPGA: Timeout waiting for program.\n");
- return -4;
- }
-
- /* Disable AXI configuration */
- clrbits_le32(&fpgamgr_regs->ctrl, FPGAMGRREGS_CTRL_AXICFGEN_MASK);
-
- return 0;
-}
-
-/* Ensure the FPGA entering init phase */
-static int fpgamgr_program_poll_initphase(void)
-{
- unsigned long i;
-
- /* Additional clocks for the CB to enter initialization phase */
- if (fpgamgr_dclkcnt_set(0x4))
- return -5;
-
- /* (4) wait until FPGA enter init phase or user mode */
- for (i = 0; i < FPGA_TIMEOUT_CNT; i++) {
- if (fpgamgr_get_mode() == FPGAMGRREGS_MODE_INITPHASE)
- break;
- if (fpgamgr_get_mode() == FPGAMGRREGS_MODE_USERMODE)
- break;
- }
-
- /* If not in configuration state, return error */
- if (i == FPGA_TIMEOUT_CNT)
- return -6;
-
- return 0;
-}
-
-/* Ensure the FPGA entering user mode */
-static int fpgamgr_program_poll_usermode(void)
-{
- unsigned long i;
-
- /* Additional clocks for the CB to exit initialization phase */
- if (fpgamgr_dclkcnt_set(0x5000))
- return -7;
-
- /* (5) wait until FPGA enter user mode */
- for (i = 0; i < FPGA_TIMEOUT_CNT; i++) {
- if (fpgamgr_get_mode() == FPGAMGRREGS_MODE_USERMODE)
- break;
- }
- /* If not in configuration state, return error */
- if (i == FPGA_TIMEOUT_CNT)
- return -8;
-
- /* To release FPGA Manager drive over configuration line */
- clrbits_le32(&fpgamgr_regs->ctrl, FPGAMGRREGS_CTRL_EN_MASK);
-
- return 0;
-}
-
-/*
- * FPGA Manager to program the FPGA. This is the interface used by FPGA driver.
- * Return 0 for sucess, non-zero for error.
- */
-int socfpga_load(Altera_desc *desc, const void *rbf_data, size_t rbf_size)
-{
- unsigned long status;
-
- if ((uint32_t)rbf_data & 0x3) {
- puts("FPGA: Unaligned data, realign to 32bit boundary.\n");
- return -EINVAL;
- }
-
- /* Prior programming the FPGA, all bridges need to be shut off */
-
- /* Disable all signals from hps peripheral controller to fpga */
- writel(0, &sysmgr_regs->fpgaintfgrp_module);
-
- /* Disable all signals from FPGA to HPS SDRAM */
-#define SDR_CTRLGRP_FPGAPORTRST_ADDRESS 0x5080
- writel(0, SOCFPGA_SDR_ADDRESS + SDR_CTRLGRP_FPGAPORTRST_ADDRESS);
-
- /* Disable all axi bridge (hps2fpga, lwhps2fpga & fpga2hps) */
- socfpga_bridges_reset(1);
-
- /* Unmap the bridges from NIC-301 */
- writel(0x1, SOCFPGA_L3REGS_ADDRESS);
-
- /* Initialize the FPGA Manager */
- status = fpgamgr_program_init();
- if (status)
- return status;
-
- /* Write the RBF data to FPGA Manager */
- fpgamgr_program_write(rbf_data, rbf_size);
-
- /* Ensure the FPGA entering config done */
- status = fpgamgr_program_poll_cd();
- if (status)
- return status;
-
- /* Ensure the FPGA entering init phase */
- status = fpgamgr_program_poll_initphase();
- if (status)
- return status;
-
- /* Ensure the FPGA entering user mode */
- return fpgamgr_program_poll_usermode();
-}
--- /dev/null
+/*
+ * Copyright (C) 2012 Altera Corporation <www.altera.com>
+ * All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <linux/errno.h>
+#include <asm/arch/fpga_manager.h>
+#include <asm/arch/reset_manager.h>
+#include <asm/arch/system_manager.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define FPGA_TIMEOUT_CNT 0x1000000
+
+static struct socfpga_fpga_manager *fpgamgr_regs =
+ (struct socfpga_fpga_manager *)SOCFPGA_FPGAMGRREGS_ADDRESS;
+static struct socfpga_system_manager *sysmgr_regs =
+ (struct socfpga_system_manager *)SOCFPGA_SYSMGR_ADDRESS;
+
+/* Set CD ratio */
+static void fpgamgr_set_cd_ratio(unsigned long ratio)
+{
+ clrsetbits_le32(&fpgamgr_regs->ctrl,
+ 0x3 << FPGAMGRREGS_CTRL_CDRATIO_LSB,
+ (ratio & 0x3) << FPGAMGRREGS_CTRL_CDRATIO_LSB);
+}
+
+/* Start the FPGA programming by initialize the FPGA Manager */
+static int fpgamgr_program_init(void)
+{
+ unsigned long msel, i;
+
+ /* Get the MSEL value */
+ msel = readl(&fpgamgr_regs->stat);
+ msel &= FPGAMGRREGS_STAT_MSEL_MASK;
+ msel >>= FPGAMGRREGS_STAT_MSEL_LSB;
+
+ /*
+ * Set the cfg width
+ * If MSEL[3] = 1, cfg width = 32 bit
+ */
+ if (msel & 0x8) {
+ setbits_le32(&fpgamgr_regs->ctrl,
+ FPGAMGRREGS_CTRL_CFGWDTH_MASK);
+
+ /* To determine the CD ratio */
+ /* MSEL[1:0] = 0, CD Ratio = 1 */
+ if ((msel & 0x3) == 0x0)
+ fpgamgr_set_cd_ratio(CDRATIO_x1);
+ /* MSEL[1:0] = 1, CD Ratio = 4 */
+ else if ((msel & 0x3) == 0x1)
+ fpgamgr_set_cd_ratio(CDRATIO_x4);
+ /* MSEL[1:0] = 2, CD Ratio = 8 */
+ else if ((msel & 0x3) == 0x2)
+ fpgamgr_set_cd_ratio(CDRATIO_x8);
+
+ } else { /* MSEL[3] = 0 */
+ clrbits_le32(&fpgamgr_regs->ctrl,
+ FPGAMGRREGS_CTRL_CFGWDTH_MASK);
+
+ /* To determine the CD ratio */
+ /* MSEL[1:0] = 0, CD Ratio = 1 */
+ if ((msel & 0x3) == 0x0)
+ fpgamgr_set_cd_ratio(CDRATIO_x1);
+ /* MSEL[1:0] = 1, CD Ratio = 2 */
+ else if ((msel & 0x3) == 0x1)
+ fpgamgr_set_cd_ratio(CDRATIO_x2);
+ /* MSEL[1:0] = 2, CD Ratio = 4 */
+ else if ((msel & 0x3) == 0x2)
+ fpgamgr_set_cd_ratio(CDRATIO_x4);
+ }
+
+ /* To enable FPGA Manager configuration */
+ clrbits_le32(&fpgamgr_regs->ctrl, FPGAMGRREGS_CTRL_NCE_MASK);
+
+ /* To enable FPGA Manager drive over configuration line */
+ setbits_le32(&fpgamgr_regs->ctrl, FPGAMGRREGS_CTRL_EN_MASK);
+
+ /* Put FPGA into reset phase */
+ setbits_le32(&fpgamgr_regs->ctrl, FPGAMGRREGS_CTRL_NCONFIGPULL_MASK);
+
+ /* (1) wait until FPGA enter reset phase */
+ for (i = 0; i < FPGA_TIMEOUT_CNT; i++) {
+ if (fpgamgr_get_mode() == FPGAMGRREGS_MODE_RESETPHASE)
+ break;
+ }
+
+ /* If not in reset state, return error */
+ if (fpgamgr_get_mode() != FPGAMGRREGS_MODE_RESETPHASE) {
+ puts("FPGA: Could not reset\n");
+ return -1;
+ }
+
+ /* Release FPGA from reset phase */
+ clrbits_le32(&fpgamgr_regs->ctrl, FPGAMGRREGS_CTRL_NCONFIGPULL_MASK);
+
+ /* (2) wait until FPGA enter configuration phase */
+ for (i = 0; i < FPGA_TIMEOUT_CNT; i++) {
+ if (fpgamgr_get_mode() == FPGAMGRREGS_MODE_CFGPHASE)
+ break;
+ }
+
+ /* If not in configuration state, return error */
+ if (fpgamgr_get_mode() != FPGAMGRREGS_MODE_CFGPHASE) {
+ puts("FPGA: Could not configure\n");
+ return -2;
+ }
+
+ /* Clear all interrupts in CB Monitor */
+ writel(0xFFF, &fpgamgr_regs->gpio_porta_eoi);
+
+ /* Enable AXI configuration */
+ setbits_le32(&fpgamgr_regs->ctrl, FPGAMGRREGS_CTRL_AXICFGEN_MASK);
+
+ return 0;
+}
+
+/* Ensure the FPGA entering config done */
+static int fpgamgr_program_poll_cd(void)
+{
+ const uint32_t mask = FPGAMGRREGS_MON_GPIO_EXT_PORTA_NS_MASK |
+ FPGAMGRREGS_MON_GPIO_EXT_PORTA_CD_MASK;
+ unsigned long reg, i;
+
+ /* (3) wait until full config done */
+ for (i = 0; i < FPGA_TIMEOUT_CNT; i++) {
+ reg = readl(&fpgamgr_regs->gpio_ext_porta);
+
+ /* Config error */
+ if (!(reg & mask)) {
+ printf("FPGA: Configuration error.\n");
+ return -3;
+ }
+
+ /* Config done without error */
+ if (reg & mask)
+ break;
+ }
+
+ /* Timeout happened, return error */
+ if (i == FPGA_TIMEOUT_CNT) {
+ printf("FPGA: Timeout waiting for program.\n");
+ return -4;
+ }
+
+ /* Disable AXI configuration */
+ clrbits_le32(&fpgamgr_regs->ctrl, FPGAMGRREGS_CTRL_AXICFGEN_MASK);
+
+ return 0;
+}
+
+/* Ensure the FPGA entering init phase */
+static int fpgamgr_program_poll_initphase(void)
+{
+ unsigned long i;
+
+ /* Additional clocks for the CB to enter initialization phase */
+ if (fpgamgr_dclkcnt_set(0x4))
+ return -5;
+
+ /* (4) wait until FPGA enter init phase or user mode */
+ for (i = 0; i < FPGA_TIMEOUT_CNT; i++) {
+ if (fpgamgr_get_mode() == FPGAMGRREGS_MODE_INITPHASE)
+ break;
+ if (fpgamgr_get_mode() == FPGAMGRREGS_MODE_USERMODE)
+ break;
+ }
+
+ /* If not in configuration state, return error */
+ if (i == FPGA_TIMEOUT_CNT)
+ return -6;
+
+ return 0;
+}
+
+/* Ensure the FPGA entering user mode */
+static int fpgamgr_program_poll_usermode(void)
+{
+ unsigned long i;
+
+ /* Additional clocks for the CB to exit initialization phase */
+ if (fpgamgr_dclkcnt_set(0x5000))
+ return -7;
+
+ /* (5) wait until FPGA enter user mode */
+ for (i = 0; i < FPGA_TIMEOUT_CNT; i++) {
+ if (fpgamgr_get_mode() == FPGAMGRREGS_MODE_USERMODE)
+ break;
+ }
+ /* If not in configuration state, return error */
+ if (i == FPGA_TIMEOUT_CNT)
+ return -8;
+
+ /* To release FPGA Manager drive over configuration line */
+ clrbits_le32(&fpgamgr_regs->ctrl, FPGAMGRREGS_CTRL_EN_MASK);
+
+ return 0;
+}
+
+/*
+ * FPGA Manager to program the FPGA. This is the interface used by FPGA driver.
+ * Return 0 for sucess, non-zero for error.
+ */
+int socfpga_load(Altera_desc *desc, const void *rbf_data, size_t rbf_size)
+{
+ unsigned long status;
+
+ if ((uint32_t)rbf_data & 0x3) {
+ puts("FPGA: Unaligned data, realign to 32bit boundary.\n");
+ return -EINVAL;
+ }
+
+ /* Prior programming the FPGA, all bridges need to be shut off */
+
+ /* Disable all signals from hps peripheral controller to fpga */
+ writel(0, &sysmgr_regs->fpgaintfgrp_module);
+
+ /* Disable all signals from FPGA to HPS SDRAM */
+#define SDR_CTRLGRP_FPGAPORTRST_ADDRESS 0x5080
+ writel(0, SOCFPGA_SDR_ADDRESS + SDR_CTRLGRP_FPGAPORTRST_ADDRESS);
+
+ /* Disable all axi bridge (hps2fpga, lwhps2fpga & fpga2hps) */
+ socfpga_bridges_reset(1);
+
+ /* Unmap the bridges from NIC-301 */
+ writel(0x1, SOCFPGA_L3REGS_ADDRESS);
+
+ /* Initialize the FPGA Manager */
+ status = fpgamgr_program_init();
+ if (status)
+ return status;
+
+ /* Write the RBF data to FPGA Manager */
+ fpgamgr_program_write(rbf_data, rbf_size);
+
+ /* Ensure the FPGA entering config done */
+ status = fpgamgr_program_poll_cd();
+ if (status)
+ return status;
+
+ /* Ensure the FPGA entering init phase */
+ status = fpgamgr_program_poll_initphase();
+ if (status)
+ return status;
+
+ /* Ensure the FPGA entering user mode */
+ return fpgamgr_program_poll_usermode();
+}
projects / people / ms / u-boot.git / commitdiff
