From: Tien Fong Chee <tien.fong.c...@intel.com>
Add FPGA driver support for Arria 10.
Signed-off-by: Tien Fong Chee <tien.fong.c...@intel.com>
Cc: Marek Vasut <ma...@denx.de>
Cc: Dinh Nguyen <dingu...@kernel.org>
Cc: Ching Liang See <chin.liang....@intel.com>
Cc: Ley Foon <ley.foon....@intel.com>
Cc: Westergreen Dalon <dalon.westergr...@intel.com>
---
arch/arm/mach-socfpga/Makefile | 1 +
arch/arm/mach-socfpga/include/mach/fpga_manager.h | 2 +
.../include/mach/fpga_manager_arria10.h | 120 +++++
drivers/Makefile | 1 +
drivers/fpga/Makefile | 1 +
drivers/fpga/socfpga_arria10.c | 565 ++++++++++++++++++++
6 files changed, 690 insertions(+), 0 deletions(-)
create mode 100644 arch/arm/mach-socfpga/include/mach/fpga_manager_arria10.h
create mode 100644 drivers/fpga/socfpga_arria10.c
diff --git a/arch/arm/mach-socfpga/Makefile b/arch/arm/mach-socfpga/Makefile
index 901bf91..d1ca3ee 100644
--- a/arch/arm/mach-socfpga/Makefile
+++ b/arch/arm/mach-socfpga/Makefile
@@ -18,6 +18,7 @@ obj-y += clock_manager_arria10.o
obj-y += misc_arria10.o
obj-y += pinmux_arria10.o
obj-y += reset_manager_arria10.o
+obj-y += lowlevel_init.o
endif
ifdef CONFIG_TARGET_SOCFPGA_GEN5
diff --git a/arch/arm/mach-socfpga/include/mach/fpga_manager.h
b/arch/arm/mach-socfpga/include/mach/fpga_manager.h
index 76a9289..64e8344 100644
--- a/arch/arm/mach-socfpga/include/mach/fpga_manager.h
+++ b/arch/arm/mach-socfpga/include/mach/fpga_manager.h
@@ -12,6 +12,8 @@
#if defined(CONFIG_TARGET_SOCFPGA_GEN5)
#include <asm/arch/fpga_manager_gen5.h>
+#elif defined(CONFIG_TARGET_SOCFPGA_ARRIA10)
+#include <asm/arch/fpga_manager_arria10.h>
#endif
/* FPGA CD Ratio Value */
diff --git a/arch/arm/mach-socfpga/include/mach/fpga_manager_arria10.h
b/arch/arm/mach-socfpga/include/mach/fpga_manager_arria10.h
new file mode 100644
index 0000000..a273be7
--- /dev/null
+++ b/arch/arm/mach-socfpga/include/mach/fpga_manager_arria10.h
@@ -0,0 +1,120 @@
+/*
+ * Copyright (C) 2017 Intel Corporation <www.intel.com>
+ * All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef _FPGA_MANAGER_ARRIA10_H_
+#define _FPGA_MANAGER_ARRIA10_H_
+
+#define ALT_FPGAMGR_IMGCFG_STAT_F2S_CRC_ERROR_SET_MSK 0x00000001
+#define ALT_FPGAMGR_IMGCFG_STAT_F2S_EARLY_USERMODE_SET_MSK 0x00000002
+#define ALT_FPGAMGR_IMGCFG_STAT_F2S_USERMODE_SET_MSK 0x00000004
+#define ALT_FPGAMGR_IMGCFG_STAT_F2S_INITDONE_OE_SET_MSK 0x00000008
+#define ALT_FPGAMGR_IMGCFG_STAT_F2S_NSTATUS_PIN_SET_MSK
0x00000010
+#define ALT_FPGAMGR_IMGCFG_STAT_F2S_NSTATUS_OE_SET_MSK 0x00000020
+#define ALT_FPGAMGR_IMGCFG_STAT_F2S_CONDONE_PIN_SET_MSK
0x00000040
+#define ALT_FPGAMGR_IMGCFG_STAT_F2S_CONDONE_OE_SET_MSK 0x00000080
+#define ALT_FPGAMGR_IMGCFG_STAT_F2S_CVP_CONF_DONE_SET_MSK 0x00000100
+#define ALT_FPGAMGR_IMGCFG_STAT_F2S_PR_READY_SET_MSK 0x00000200
+#define ALT_FPGAMGR_IMGCFG_STAT_F2S_PR_DONE_SET_MSK 0x00000400
+#define ALT_FPGAMGR_IMGCFG_STAT_F2S_PR_ERROR_SET_MSK 0x00000800
+#define ALT_FPGAMGR_IMGCFG_STAT_F2S_NCONFIG_PIN_SET_MSK
0x00001000
+#define ALT_FPGAMGR_IMGCFG_STAT_F2S_NCEO_OE_SET_MSK 0x00002000
+#define ALT_FPGAMGR_IMGCFG_STAT_F2S_MSEL0_SET_MSK 0x00010000
+#define ALT_FPGAMGR_IMGCFG_STAT_F2S_MSEL1_SET_MSK 0x00020000
+#define ALT_FPGAMGR_IMGCFG_STAT_F2S_MSEL2_SET_MSK 0x00040000
+#define ALT_FPGAMGR_IMGCFG_STAT_F2S_MSEL_SET_MSD (\
+ ALT_FPGAMGR_IMGCFG_STAT_F2S_MSEL0_SET_MSK |\
+ ALT_FPGAMGR_IMGCFG_STAT_F2S_MSEL1_SET_MSK |\
+ ALT_FPGAMGR_IMGCFG_STAT_F2S_MSEL2_SET_MSK)
+#define ALT_FPGAMGR_IMGCFG_STAT_F2S_IMGCFG_FIFOEMPTY_SET_MSK 0x01000000
+#define ALT_FPGAMGR_IMGCFG_STAT_F2S_IMGCFG_FIFOFULL_SET_MSK 0x02000000
+#define ALT_FPGAMGR_IMGCFG_STAT_F2S_JTAGM_SET_MSK 0x10000000
+#define ALT_FPGAMGR_IMGCFG_STAT_F2S_EMR_SET_MSK
0x20000000
+#define ALT_FPGAMGR_IMGCFG_STAT_F2S_MSEL0_LSB 16
+
+#define ALT_FPGAMGR_IMGCFG_CTL_00_S2F_NENABLE_NCONFIG_SET_MSK 0x00000001
+#define ALT_FPGAMGR_IMGCFG_CTL_00_S2F_NENABLE_NSTATUS_SET_MSK 0x00000002
+#define ALT_FPGAMGR_IMGCFG_CTL_00_S2F_NENABLE_CONDONE_SET_MSK 0x00000004
+#define ALT_FPGAMGR_IMGCFG_CTL_00_S2F_NCONFIG_SET_MSK 0x00000100
+#define ALT_FPGAMGR_IMGCFG_CTL_00_S2F_NSTATUS_OE_SET_MSK 0x00010000
+#define ALT_FPGAMGR_IMGCFG_CTL_00_S2F_CONDONE_OE_SET_MSK 0x01000000
+
+#define ALT_FPGAMGR_IMGCFG_CTL_01_S2F_NENABLE_CONFIG_SET_MSK 0x00000001
+#define ALT_FPGAMGR_IMGCFG_CTL_01_S2F_PR_REQUEST_SET_MSK 0x00010000
+#define ALT_FPGAMGR_IMGCFG_CTL_01_S2F_NCE_SET_MSK 0x01000000
+
+#define ALT_FPGAMGR_IMGCFG_CTL_02_EN_CFG_CTRL_SET_MSK 0x00000001
+#define ALT_FPGAMGR_IMGCFG_CTL_02_EN_CFG_DATA_SET_MSK 0x00000100
+#define ALT_FPGAMGR_IMGCFG_CTL_02_CDRATIO_SET_MSK 0x00030000
+#define ALT_FPGAMGR_IMGCFG_CTL_02_CFGWIDTH_SET_MSK 0x01000000
+#define ALT_FPGAMGR_IMGCFG_CTL_02_CDRATIO_LSB 16
+
+/* Timeout counter */
+#define FPGA_TIMEOUT_CNT 0x1000000
+#define FPGA_TIMEOUT_MSEC 1000 /* timeout in ms */
+
+#ifndef __ASSEMBLY__
+
+struct socfpga_fpga_manager {
+ uint32_t _pad_0x0_0x7[2];
+ uint32_t dclkcnt;
+ uint32_t dclkstat;
+ uint32_t gpo;
+ uint32_t gpi;
+ uint32_t misci;
+ uint32_t _pad_0x1c_0x2f[5];
+ uint32_t emr_data0;
+ uint32_t emr_data1;
+ uint32_t emr_data2;
+ uint32_t emr_data3;
+ uint32_t emr_data4;
+ uint32_t emr_data5;
+ uint32_t emr_valid;
+ uint32_t emr_en;
+ uint32_t jtag_config;
+ uint32_t jtag_status;
+ uint32_t jtag_kick;
+ uint32_t _pad_0x5c_0x5f;
+ uint32_t jtag_data_w;
+ uint32_t jtag_data_r;
+ uint32_t _pad_0x68_0x6f[2];
+ uint32_t imgcfg_ctrl_00;
+ uint32_t imgcfg_ctrl_01;
+ uint32_t imgcfg_ctrl_02;
+ uint32_t _pad_0x7c_0x7f;
+ uint32_t imgcfg_stat;
+ uint32_t intr_masked_status;
+ uint32_t intr_mask;
+ uint32_t intr_polarity;
+ uint32_t dma_config;
+ uint32_t imgcfg_fifo_status;
+};
+
+/* Functions */
+int is_fpgamgr_fpga_ready(void);
+int poll_fpgamgr_fpga_ready(void);
+int fpgamgr_program_init(u32 * rbf_data, u32 rbf_size);
+int fpgamgr_program_fini(void);
+void fpgamgr_program_write(const unsigned long *rbf_data,
+ unsigned long rbf_size);
+void fpgamgr_program_sync(void);
+int fpgamgr_program_poll_cd(void);
+int fpgamgr_program_poll_initphase(void);
+int is_fpgamgr_user_mode(void);
+int fpgamgr_program_poll_usermode(void);
+int fpgamgr_program_poll_usermode(void);
+int fpgamgr_program_fpga(const unsigned long *rbf_data,
+ unsigned long rbf_size);
+void fpgamgr_axi_write(const unsigned long *rbf_data,
+ const unsigned long fpgamgr_data_addr, unsigned long rbf_size);
+int fpgamgr_wait_early_user_mode(void);
+int is_fpgamgr_early_user_mode(void);
+int fpgamgr_reset(void);
+int wait_for_nconfig_pin_and_nstatus_pin(void);
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* _FPGA_MANAGER_ARRIA10_H_ */
diff --git a/drivers/Makefile b/drivers/Makefile
index 6e7a2c3..375ee78 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -10,6 +10,7 @@ obj-$(CONFIG_$(SPL_)RAM) += ram/
ifdef CONFIG_SPL_BUILD
+obj-$(CONFIG_FPGA) += fpga/
obj-$(CONFIG_SPL_CPU_SUPPORT) += cpu/
obj-$(CONFIG_SPL_CRYPTO_SUPPORT) += crypto/
obj-$(CONFIG_SPL_I2C_SUPPORT) += i2c/
diff --git a/drivers/fpga/Makefile b/drivers/fpga/Makefile
index c70ee40..bb063e0 100644
--- a/drivers/fpga/Makefile
+++ b/drivers/fpga/Makefile
@@ -22,5 +22,6 @@ obj-$(CONFIG_FPGA_STRATIX_V) += stratixv.o
ifdef CONFIG_FPGA_SOCFPGA
obj-y += socfpga.o
obj-$(CONFIG_TARGET_SOCFPGA_GEN5) += socfpga_gen5.o
+obj-$(CONFIG_TARGET_SOCFPGA_ARRIA10) += socfpga_arria10.o
endif
endif
diff --git a/drivers/fpga/socfpga_arria10.c b/drivers/fpga/socfpga_arria10.c
new file mode 100644
index 0000000..e6c767b
--- /dev/null
+++ b/drivers/fpga/socfpga_arria10.c
@@ -0,0 +1,565 @@
+/*
+ * Copyright (C) 2017 Intel Corporation <www.intel.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0
+ */
+
+#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>
+#include <asm/arch/sdram.h>
+#include <asm/arch/misc.h>
+#include <altera.h>
+#include <errno.h>
+#include <watchdog.h>
+
+#define CFGWDTH_32 1
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static const struct socfpga_fpga_manager *fpga_manager_base =
+ (void *)SOCFPGA_FPGAMGRREGS_ADDRESS;
+
+static const struct socfpga_system_manager *system_manager_base =
+ (void *)SOCFPGA_SYSMGR_ADDRESS;
+
+static void fpgamgr_set_cd_ratio(unsigned long ratio);
+
+static uint32_t fpgamgr_get_msel(void)
+{
+ uint32_t reg;
+
+ reg = readl(&fpga_manager_base->imgcfg_stat);
+ reg = ((reg & ALT_FPGAMGR_IMGCFG_STAT_F2S_MSEL_SET_MSD) >>
+ ALT_FPGAMGR_IMGCFG_STAT_F2S_MSEL0_LSB);
+
+ return reg;
+}
+
+static void fpgamgr_set_cfgwdth(int width)
+{
+ if (width)
+ setbits_le32(&fpga_manager_base->imgcfg_ctrl_02,
+ ALT_FPGAMGR_IMGCFG_CTL_02_CFGWIDTH_SET_MSK);
+ else
+ clrbits_le32(&fpga_manager_base->imgcfg_ctrl_02,
+ ALT_FPGAMGR_IMGCFG_CTL_02_CFGWIDTH_SET_MSK);
+}
+
+/* Check whether FPGA Init_Done signal is high */
+int is_fpgamgr_initdone_high(void)
+{
+ return (readl(&fpga_manager_base->imgcfg_stat) &
+ ALT_FPGAMGR_IMGCFG_STAT_F2S_INITDONE_OE_SET_MSK) != 0;
+}
+
+int is_fpgamgr_user_mode(void)
+{
+ return (readl(&fpga_manager_base->imgcfg_stat) &
+ ALT_FPGAMGR_IMGCFG_STAT_F2S_USERMODE_SET_MSK) != 0;
+}
+
+static int wait_for_user_mode(void)
+{
+ unsigned start = get_timer(0);
+
+ while (!(is_fpgamgr_user_mode())) {
+ if (get_timer(start) > FPGA_TIMEOUT_MSEC)
+ return -ETIMEDOUT;
+ }
+
+ return 0;
+}
+
+int is_fpgamgr_early_user_mode(void)
+{
+ return (readl(&fpga_manager_base->imgcfg_stat) &
+ ALT_FPGAMGR_IMGCFG_STAT_F2S_EARLY_USERMODE_SET_MSK) != 0;
+}
+
+int fpgamgr_wait_early_user_mode(void)
+{
+ u32 sync_data = 0xffffffff;
+ u32 i = 0;
+ unsigned start = get_timer(0);
+ unsigned long cd_ratio;
+
+ /* Getting existing CDRATIO */
+ cd_ratio = (readl(&fpga_manager_base->imgcfg_ctrl_02) &
+ ALT_FPGAMGR_IMGCFG_CTL_02_CDRATIO_SET_MSK) >>
+ ALT_FPGAMGR_IMGCFG_CTL_02_CDRATIO_LSB;
+
+ /* Using CDRATIO_X1 for better compatibility */
+ fpgamgr_set_cd_ratio(CDRATIO_x1);
+
+ while (!(is_fpgamgr_early_user_mode())) {
+ if (get_timer(start) > FPGA_TIMEOUT_MSEC)
+ return -ETIMEDOUT;
+ fpgamgr_program_write((const long unsigned int *)&sync_data,
+ sizeof(sync_data));
+ udelay(1000);
+ i++;
+ }
+
+ debug("Additional %i sync word needed\n", i);
+
+ /* restoring original CDRATIO */
+ fpgamgr_set_cd_ratio(cd_ratio);
+
+ return 0;
+}
+
+/* send sync words to clock data through the control block */
+void fpgamgr_program_sync(void)
+{
+ u32 sync_data = 0xffffffff;
+ int i;
+ for (i = 0; i < 10; i++) {
+ fpgamgr_program_write((const long unsigned int *)&sync_data,
+ sizeof(sync_data));
+ }
+}
+
+static int wait_for_imgcfg_stat(unsigned long mask)
+{
+ unsigned long reg, i;
+
+ for (i = 0; i < FPGA_TIMEOUT_CNT; i++) {
+ reg = readl(&fpga_manager_base->imgcfg_stat);
+ if ((reg & mask) == mask)
+ break;
+ }
+
+ return i;
+}
+
+/* Read f2s_nconfig_pin and f2s_nstatus_pin; loop until de-asserted */
+int wait_for_nconfig_pin_and_nstatus_pin(void)
+{
+ return wait_for_imgcfg_stat(
+ ALT_FPGAMGR_IMGCFG_STAT_F2S_NCONFIG_PIN_SET_MSK |
+ ALT_FPGAMGR_IMGCFG_STAT_F2S_NSTATUS_PIN_SET_MSK);
+}
+
+static int wait_for_f2s_nstatus_pin(unsigned long value)
+{
+ unsigned long reg, i, desired;
+ unsigned long mask = ALT_FPGAMGR_IMGCFG_STAT_F2S_NSTATUS_PIN_SET_MSK;
+
+ if (value == 0)
+ desired = 0;
+ else
+ desired = mask;
+
+ for (i = 0; i < FPGA_TIMEOUT_CNT; i++) {
+ reg = readl(&fpga_manager_base->imgcfg_stat);
+ if ((reg & mask) == desired)
+ break;
+ }
+
+ return i;
+}
+
+/* Check whether FPGA is ready to be accessed */
+int is_fpgamgr_fpga_ready(void)
+{
+ /* check for init done signal */
+ if (is_fpgamgr_initdone_high() == 0)
+ return 0;
+
+ /* check again to avoid false glitches */
+ if (is_fpgamgr_initdone_high() == 0)
+ return 0;
+
+ if (!is_fpgamgr_user_mode())
+ return 0;
+
+ return 1;
+}
+
+/* Poll until FPGA is ready to be accessed or timeout occurred */
+int poll_fpgamgr_fpga_ready(void)
+{
+ unsigned long i;
+
+ /* If FPGA is blank, wait till WD invoke warm reset */
+ for (i = 0; i < FPGA_TIMEOUT_CNT; i++) {
+ /* check for init done signal */
+ if (is_fpgamgr_initdone_high() == 0)
+ continue;
+
+ /* check again to avoid false glitches */
+ if (is_fpgamgr_initdone_high() == 0)
+ continue;
+
+ return 1;
+ }
+
+ return 0;
+}
+
+/* set CD ratio */
+static void fpgamgr_set_cd_ratio(unsigned long ratio)
+{
+ clrbits_le32(&fpga_manager_base->imgcfg_ctrl_02,
+ ALT_FPGAMGR_IMGCFG_CTL_02_CDRATIO_SET_MSK);
+
+ setbits_le32(&fpga_manager_base->imgcfg_ctrl_02,
+ (ratio << ALT_FPGAMGR_IMGCFG_CTL_02_CDRATIO_LSB) &
+ ALT_FPGAMGR_IMGCFG_CTL_02_CDRATIO_SET_MSK);
+}
+
+/* get the MSEL value, verify we are set for FPP configuration mode */
+static int fpgamgr_verify_msel(void)
+{
+ unsigned int msel = fpgamgr_get_msel();
+
+ if ((msel != 0) && (msel != 1)) {
+ printf("Fail: read msel=%d\n", msel);
+ return -1;
+ }
+
+ return 0;
+}
+
+/*
+ * Write cdratio and cdwidth based on whether the bitstream is compressed
+ * and/or encoded
+ */
+static int fpgamgr_set_cdratio_cdwidth(unsigned int cfg_width, u32 *rbf_data,
+ u32 rbf_size)
+{
+ unsigned int cd_ratio;
+ bool encrypt, compress;
+
+ if (rbf_size < 230)
+ return -1;
+
+ encrypt = (rbf_data[69] >> 2) & 3;
+ encrypt = encrypt != 0;
+
+ compress = (rbf_data[229] >> 1) & 1;
+ compress = !compress;
+
+#if 0
+ printf("header word %d = %08x\n", 69, rbf_data[69]);
+ printf("header word %d = %08x\n", 229, rbf_data[229]);
+ printf("read from rbf header: encrypt=%d compress=%d\n", encrypt,
compress);
+#endif
+
+ /*
+ * from the register map description of cdratio in imgcfg_ctrl_02:
+ * Normal Configuration : 32bit Passive Parallel
+ * Partial Reconfiguration : 16bit Passive Parallel
+ */
+
+ /*
+ * cd ratio is dependent on cfg width and whether the bitstream
+ * is encrypted and/or compressed.
+ *
+ * | width | encr. | compr. | cd ratio |
+ * | 16 | 0 | 0 | 1 |
+ * | 16 | 0 | 1 | 4 |
+ * | 16 | 1 | 0 | 2 |
+ * | 16 | 1 | 1 | 4 |
+ * | 32 | 0 | 0 | 1 |
+ * | 32 | 0 | 1 | 8 |
+ * | 32 | 1 | 0 | 4 |
+ * | 32 | 1 | 1 | 8 |
+ */
+ if (!compress && !encrypt) {
+ cd_ratio = CDRATIO_x1;
+ } else {
+ if (compress)
+ cd_ratio = CDRATIO_x4;
+ else
+ cd_ratio = CDRATIO_x2;
+
+ /* if 32 bit, double the cd ratio (so register
+ field setting is incremented) */
+ if (cfg_width == CFGWDTH_32)
+ cd_ratio += 1;
+ }
+
+ fpgamgr_set_cfgwdth(cfg_width);
+ fpgamgr_set_cd_ratio(cd_ratio);
+
+ return 0;
+}
+
+int fpgamgr_reset(void)
+{
+ unsigned long reg;
+
+ /* S2F_NCONFIG = 0 */
+ clrbits_le32(&fpga_manager_base->imgcfg_ctrl_00,
+ ALT_FPGAMGR_IMGCFG_CTL_00_S2F_NCONFIG_SET_MSK);
+
+ /* Wait for f2s_nstatus == 0 */
+ if (wait_for_f2s_nstatus_pin(0) == FPGA_TIMEOUT_CNT)
+ return -5;
+
+ /* S2F_NCONFIG = 1 */
+ setbits_le32(&fpga_manager_base->imgcfg_ctrl_00,
+ ALT_FPGAMGR_IMGCFG_CTL_00_S2F_NCONFIG_SET_MSK);
+
+ /* Wait for f2s_nstatus == 1 */
+ if (wait_for_f2s_nstatus_pin(1) == FPGA_TIMEOUT_CNT)
+ return -6;
+
+ /* read and confirm f2s_condone_pin = 0 and f2s_condone_oe = 1 */
+ reg = readl(&fpga_manager_base->imgcfg_stat);
+ if ((reg & ALT_FPGAMGR_IMGCFG_STAT_F2S_CONDONE_PIN_SET_MSK) != 0)
+ return -7;
+
+ if ((reg & ALT_FPGAMGR_IMGCFG_STAT_F2S_CONDONE_OE_SET_MSK) == 0)
+ return -8;
+
+ return 0;
+}
+
+/* Start the FPGA programming by initialize the FPGA Manager */
+int fpgamgr_program_init(u32 * rbf_data, u32 rbf_size)
+{
+ int ret;
+
+ /* Step 1 */
+ if (fpgamgr_verify_msel())
+ return -1;
+
+ /* Step 2 */
+ if (fpgamgr_set_cdratio_cdwidth(CFGWDTH_32, rbf_data, rbf_size))
+ return -2;
+
+ /*
+ * Step 3:
+ * Make sure no other external devices are trying to interfere with
+ * programming:
+ */
+ if (wait_for_nconfig_pin_and_nstatus_pin() == FPGA_TIMEOUT_CNT)
+ return -3;
+
+ /*
+ * Step 4:
+ * Deassert the signal drives from HPS
+ *
+ * S2F_NCE = 1
+ * S2F_PR_REQUEST = 0
+ * EN_CFG_CTRL = 0
+ * EN_CFG_DATA = 0
+ * S2F_NCONFIG = 1
+ * S2F_NSTATUS_OE = 0
+ * S2F_CONDONE_OE = 0
+ */
+ setbits_le32(&fpga_manager_base->imgcfg_ctrl_01,
+ ALT_FPGAMGR_IMGCFG_CTL_01_S2F_NCE_SET_MSK);
+
+ clrbits_le32(&fpga_manager_base->imgcfg_ctrl_01,
+ ALT_FPGAMGR_IMGCFG_CTL_01_S2F_PR_REQUEST_SET_MSK);
+
+ clrbits_le32(&fpga_manager_base->imgcfg_ctrl_02,
+ ALT_FPGAMGR_IMGCFG_CTL_02_EN_CFG_DATA_SET_MSK |
+ ALT_FPGAMGR_IMGCFG_CTL_02_EN_CFG_CTRL_SET_MSK);
+
+ setbits_le32(&fpga_manager_base->imgcfg_ctrl_00,
+ ALT_FPGAMGR_IMGCFG_CTL_00_S2F_NCONFIG_SET_MSK);
+
+ clrbits_le32(&fpga_manager_base->imgcfg_ctrl_00,
+ ALT_FPGAMGR_IMGCFG_CTL_00_S2F_NSTATUS_OE_SET_MSK |
+ ALT_FPGAMGR_IMGCFG_CTL_00_S2F_CONDONE_OE_SET_MSK);
+
+ /*
+ * Step 5:
+ * Enable overrides
+ * S2F_NENABLE_CONFIG = 0
+ * S2F_NENABLE_NCONFIG = 0
+ */
+ clrbits_le32(&fpga_manager_base->imgcfg_ctrl_01,
+ ALT_FPGAMGR_IMGCFG_CTL_01_S2F_NENABLE_CONFIG_SET_MSK);
+ clrbits_le32(&fpga_manager_base->imgcfg_ctrl_00,
+ ALT_FPGAMGR_IMGCFG_CTL_00_S2F_NENABLE_NCONFIG_SET_MSK);
+
+ /*
+ * Disable driving signals that HPS doesn't need to drive.
+ * S2F_NENABLE_NSTATUS = 1
+ * S2F_NENABLE_CONDONE = 1
+ */
+ setbits_le32(&fpga_manager_base->imgcfg_ctrl_00,
+ ALT_FPGAMGR_IMGCFG_CTL_00_S2F_NENABLE_NSTATUS_SET_MSK |
+ ALT_FPGAMGR_IMGCFG_CTL_00_S2F_NENABLE_CONDONE_SET_MSK);
+
+ /*
+ * Step 6:
+ * Drive chip select S2F_NCE = 0
+ */
+ clrbits_le32(&fpga_manager_base->imgcfg_ctrl_01,
+ ALT_FPGAMGR_IMGCFG_CTL_01_S2F_NCE_SET_MSK);
+
+ /* Step 7 */
+ if (wait_for_nconfig_pin_and_nstatus_pin() == FPGA_TIMEOUT_CNT)
+ return -4;
+
+ /* Step 8 */
+ ret = fpgamgr_reset();
+ if (ret)
+ return ret;
+
+ /*
+ * Step 9:
+ * EN_CFG_CTRL and EN_CFG_DATA = 1
+ */
+ setbits_le32(&fpga_manager_base->imgcfg_ctrl_02,
+ ALT_FPGAMGR_IMGCFG_CTL_02_EN_CFG_DATA_SET_MSK |
+ ALT_FPGAMGR_IMGCFG_CTL_02_EN_CFG_CTRL_SET_MSK);
+
+ return 0;
+}
+
+int fpgamgr_program_fini(void)
+{
+ /* Ensure the FPGA entering config done */
+ int status = fpgamgr_program_poll_cd();
+ if (status) {
+ printf("FPGA: Poll CD failed with error code %d\n", status);
+ return -3;
+ }
+ WATCHDOG_RESET();
+
+ /* Ensure the FPGA entering init phase */
+ status = fpgamgr_program_poll_initphase();
+ if (status) {
+ printf("FPGA: Poll initphase failed with error code %d\n",
+ status);
+ return -4;
+ }
+ WATCHDOG_RESET();
+
+ /* Ensure the FPGA entering user mode */
+ status = fpgamgr_program_poll_usermode();
+ if (status) {
+ printf("FPGA: Poll usermode failed with error code %d\n",
+ status);
+ return -5;
+ }
+
+ printf("Full Configuration Succeeded.\n");
+
+ return 0;
+}
+
+/* Write the RBF data to FPGA Manager */
+void fpgamgr_program_write(const unsigned long *rbf_data,
+ unsigned long rbf_size)
+{
+ /* Write sof/pof data to img_data_w */
+ fpgamgr_axi_write(rbf_data, SOCFPGA_FPGAMGRDATA_ADDRESS, rbf_size);
+}
+
+/* Ensure the FPGA entering config done */
+int fpgamgr_program_poll_cd(void)
+{
+ unsigned long reg, i;
+
+ for (i = 0; i < FPGA_TIMEOUT_CNT; i++) {
+ reg = readl(&fpga_manager_base->imgcfg_stat);
+ if (reg & ALT_FPGAMGR_IMGCFG_STAT_F2S_CONDONE_PIN_SET_MSK)
+ return 0;
+
+ if ((reg & ALT_FPGAMGR_IMGCFG_STAT_F2S_NSTATUS_PIN_SET_MSK) ==
0) {
+ printf("nstatus == 0 while waiting for condone\n");
+ return -9;
+ }
+ }
+
+ if (i == FPGA_TIMEOUT_CNT)
+ return -10;
+
+ return 0;
+}
+
+/* Ensure the FPGA entering init phase */
+int fpgamgr_program_poll_initphase(void)
+{
+ return 0;
+}
+
+/* Ensure the FPGA entering user mode */
+int fpgamgr_program_poll_usermode(void)
+{
+ unsigned long reg;
+ int ret = 0;
+
+ if (fpgamgr_dclkcnt_set(0xf) == FPGA_TIMEOUT_CNT)
+ return -11;
+
+ ret = wait_for_user_mode();
+
+ if (ret < 0) {
+ printf("%s: Failed to enter user mode with ", __func__);
+ printf("error code %d\n", ret);
+ return ret;
+ }
+
+ /*
+ * Step 14:
+ * Stop DATA path and Dclk
+ * EN_CFG_CTRL and EN_CFG_DATA = 0
+ */
+ clrbits_le32(&fpga_manager_base->imgcfg_ctrl_02,
+ ALT_FPGAMGR_IMGCFG_CTL_02_EN_CFG_DATA_SET_MSK |
+ ALT_FPGAMGR_IMGCFG_CTL_02_EN_CFG_CTRL_SET_MSK);
+
+ /*
+ * Step 15:
+ * Disable overrides
+ * S2F_NENABLE_CONFIG = 1
+ * S2F_NENABLE_NCONFIG = 1
+ */
+ setbits_le32(&fpga_manager_base->imgcfg_ctrl_01,
+ ALT_FPGAMGR_IMGCFG_CTL_01_S2F_NENABLE_CONFIG_SET_MSK);
+ setbits_le32(&fpga_manager_base->imgcfg_ctrl_00,
+ ALT_FPGAMGR_IMGCFG_CTL_00_S2F_NENABLE_NCONFIG_SET_MSK);
+
+ /* Disable chip select S2F_NCE = 1 */
+ setbits_le32(&fpga_manager_base->imgcfg_ctrl_01,
+ ALT_FPGAMGR_IMGCFG_CTL_01_S2F_NCE_SET_MSK);
+
+ /*
+ * Step 16:
+ * Final check
+ */
+ reg = readl(&fpga_manager_base->imgcfg_stat);
+ if (((reg & ALT_FPGAMGR_IMGCFG_STAT_F2S_USERMODE_SET_MSK) == 0) ||
+ ((reg & ALT_FPGAMGR_IMGCFG_STAT_F2S_CONDONE_PIN_SET_MSK) == 0) ||
+ ((reg & ALT_FPGAMGR_IMGCFG_STAT_F2S_NSTATUS_PIN_SET_MSK) == 0))
+ return -13;
+
+ 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;
+
+ /* disable all signals from hps peripheral controller to fpga */
+ writel(0, &system_manager_base->fpgaintf_en_global);
+
+ /* disable all axi bridge (hps2fpga, lwhps2fpga & fpga2hps) */
+ socfpga_bridges_reset();
+
+ /* Initialize the FPGA Manager */
+ status = fpgamgr_program_init((u32 *)rbf_data, rbf_size);
+ if (status)
+ return status;
+
+ /* Write the RBF data to FPGA Manager */
+ fpgamgr_program_write(rbf_data, rbf_size);
+
+ return fpgamgr_program_fini();
+}
--
1.7.1
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