On Thu, May 18, 2017 at 3:03 AM, Dinh Nguyen <dingu...@kernel.org> wrote:
> > > On 05/15/2017 05:52 AM, tien.fong.c...@intel.com wrote: > > 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> > > --- > > arch/arm/mach-socfpga/include/mach/fpga_manager.h | 2 + > > .../include/mach/fpga_manager_arria10.h | 100 +++++ > > drivers/fpga/Makefile | 1 + > > drivers/fpga/socfpga_arria10.c | 487 > +++++++++++++++++++++ > > include/configs/socfpga_common.h | 3 +- > > 5 files changed, 592 insertions(+), 1 deletion(-) > > 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/include/mach/fpga_manager.h > b/arch/arm/mach-socfpga/include/mach/fpga_manager.h > > index b046c2c..a21c716 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..18d9580 > > --- /dev/null > > +++ b/arch/arm/mach-socfpga/include/mach/fpga_manager_arria10.h > > @@ -0,0 +1,100 @@ > > +/* > > + * Copyright (C) 2017 Intel Corporation <www.intel.com> > > + * All rights reserved. > > + * > > + * SPDX-License-Identifier: GPL-2.0 > > + */ > > + > > +#ifndef _FPGA_MANAGER_ARRIA10_H_ > > +#define _FPGA_MANAGER_ARRIA10_H_ > > + > > +#define ALT_FPGAMGR_IMGCFG_STAT_F2S_CRC_ERROR_SET_MSK > BIT(0) > > +#define ALT_FPGAMGR_IMGCFG_STAT_F2S_EARLY_USERMODE_SET_MSK BIT(1) > > +#define ALT_FPGAMGR_IMGCFG_STAT_F2S_USERMODE_SET_MSK > BIT(2) > > +#define ALT_FPGAMGR_IMGCFG_STAT_F2S_INITDONE_OE_SET_MSK BIT(3) > > +#define ALT_FPGAMGR_IMGCFG_STAT_F2S_NSTATUS_PIN_SET_MSK > BIT(4) > > +#define ALT_FPGAMGR_IMGCFG_STAT_F2S_NSTATUS_OE_SET_MSK > BIT(5) > > +#define ALT_FPGAMGR_IMGCFG_STAT_F2S_CONDONE_PIN_SET_MSK > BIT(6) > > +#define ALT_FPGAMGR_IMGCFG_STAT_F2S_CONDONE_OE_SET_MSK > BIT(7) > > +#define ALT_FPGAMGR_IMGCFG_STAT_F2S_CVP_CONF_DONE_SET_MSK BIT(8) > > +#define ALT_FPGAMGR_IMGCFG_STAT_F2S_PR_READY_SET_MSK BIT(9) > > +#define ALT_FPGAMGR_IMGCFG_STAT_F2S_PR_DONE_SET_MSK BIT(10) > > +#define ALT_FPGAMGR_IMGCFG_STAT_F2S_PR_ERROR_SET_MSK BIT(11) > > +#define ALT_FPGAMGR_IMGCFG_STAT_F2S_NCONFIG_PIN_SET_MSK > BIT(12) > > +#define ALT_FPGAMGR_IMGCFG_STAT_F2S_NCEO_OE_SET_MSK BIT(13) > > +#define ALT_FPGAMGR_IMGCFG_STAT_F2S_MSEL0_SET_MSK > BIT(16) > > +#define ALT_FPGAMGR_IMGCFG_STAT_F2S_MSEL1_SET_MSK > BIT(17) > > +#define ALT_FPGAMGR_IMGCFG_STAT_F2S_MSEL2_SET_MSK > BIT(18) > > +#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 BIT(24) > > +#define ALT_FPGAMGR_IMGCFG_STAT_F2S_IMGCFG_FIFOFULL_SET_MSK BIT(25) > > +#define ALT_FPGAMGR_IMGCFG_STAT_F2S_JTAGM_SET_MSK BIT(28) > > +#define ALT_FPGAMGR_IMGCFG_STAT_F2S_EMR_SET_MSK > BIT(29) > > +#define ALT_FPGAMGR_IMGCFG_STAT_F2S_MSEL0_LSB 16 > > + > > +#define ALT_FPGAMGR_IMGCFG_CTL_00_S2F_NENABLE_NCONFIG_SET_MSK > BIT(0) > > +#define ALT_FPGAMGR_IMGCFG_CTL_00_S2F_NENABLE_NSTATUS_SET_MSK > BIT(1) > > +#define ALT_FPGAMGR_IMGCFG_CTL_00_S2F_NENABLE_CONDONE_SET_MSK > BIT(2) > > +#define ALT_FPGAMGR_IMGCFG_CTL_00_S2F_NCONFIG_SET_MSK > BIT(8) > > +#define ALT_FPGAMGR_IMGCFG_CTL_00_S2F_NSTATUS_OE_SET_MSK BIT(16) > > +#define ALT_FPGAMGR_IMGCFG_CTL_00_S2F_CONDONE_OE_SET_MSK BIT(24) > > + > > +#define ALT_FPGAMGR_IMGCFG_CTL_01_S2F_NENABLE_CONFIG_SET_MSK BIT(0) > > +#define ALT_FPGAMGR_IMGCFG_CTL_01_S2F_PR_REQUEST_SET_MSK BIT(16) > > +#define ALT_FPGAMGR_IMGCFG_CTL_01_S2F_NCE_SET_MSK BIT(24) > > + > > +#define ALT_FPGAMGR_IMGCFG_CTL_02_EN_CFG_CTRL_SET_MSK BIT(0) > > +#define ALT_FPGAMGR_IMGCFG_CTL_02_EN_CFG_DATA_SET_MSK BIT(8) > > +#define ALT_FPGAMGR_IMGCFG_CTL_02_CDRATIO_SET_MSK > 0x00030000 > > +#define ALT_FPGAMGR_IMGCFG_CTL_02_CFGWIDTH_SET_MSK BIT(24) > > +#define ALT_FPGAMGR_IMGCFG_CTL_02_CDRATIO_LSB 16 > > + > > +#ifndef __ASSEMBLY__ > > + > > +struct socfpga_fpga_manager { > > + u32 _pad_0x0_0x7[2]; > > + u32 dclkcnt; > > + u32 dclkstat; > > + u32 gpo; > > + u32 gpi; > > + u32 misci; > > + u32 _pad_0x1c_0x2f[5]; > > + u32 emr_data0; > > + u32 emr_data1; > > + u32 emr_data2; > > + u32 emr_data3; > > + u32 emr_data4; > > + u32 emr_data5; > > + u32 emr_valid; > > + u32 emr_en; > > + u32 jtag_config; > > + u32 jtag_status; > > + u32 jtag_kick; > > + u32 _pad_0x5c_0x5f; > > + u32 jtag_data_w; > > + u32 jtag_data_r; > > + u32 _pad_0x68_0x6f[2]; > > + u32 imgcfg_ctrl_00; > > + u32 imgcfg_ctrl_01; > > + u32 imgcfg_ctrl_02; > > + u32 _pad_0x7c_0x7f; > > + u32 imgcfg_stat; > > + u32 intr_masked_status; > > + u32 intr_mask; > > + u32 intr_polarity; > > + u32 dma_config; > > + u32 imgcfg_fifo_status; > > +}; > > + > > +/* Functions */ > > +int fpgamgr_program_init(u32 * rbf_data, size_t rbf_size); > > +int fpgamgr_program_fini(void); > > +int is_fpgamgr_user_mode(void); > > +int fpgamgr_wait_early_user_mode(void); > > + > > +#endif /* __ASSEMBLY__ */ > > + > > +#endif /* _FPGA_MANAGER_ARRIA10_H_ */ > > diff --git a/drivers/fpga/Makefile b/drivers/fpga/Makefile > > index b65e5ba..08c9ff8 100644 > > --- a/drivers/fpga/Makefile > > +++ b/drivers/fpga/Makefile > > @@ -21,4 +21,5 @@ 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 > > +obj-$(CONFIG_TARGET_SOCFPGA_ARRIA10) += socfpga_arria10.o > > endif > > diff --git a/drivers/fpga/socfpga_arria10.c b/drivers/fpga/socfpga_ > arria10.c > > new file mode 100644 > > index 0000000..262e962 > > --- /dev/null > > +++ b/drivers/fpga/socfpga_arria10.c > > @@ -0,0 +1,487 @@ > > +/* > > + * Copyright (C) 2017 Intel Corporation <www.intel.com> > > + * > > + * SPDX-License-Identifier: GPL-2.0 > > + */ > > + > > +#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 <common.h> > > +#include <errno.h> > > +#include <wait_bit.h> > > +#include <watchdog.h> > > + > > +#define CFGWDTH_32 1 > > +#define MIN_BITSTREAM_SIZECHECK 230 > > +#define ENCRYPTION_OFFSET 69 > > +#define COMPRESSION_OFFSET 229 > > +#define FPGA_TIMEOUT_MSEC 1000 /* timeout in ms */ > > +#define FPGA_TIMEOUT_CNT 0x1000000 > > + > > +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) > > +{ > > + u32 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) > > static > > Okay > > +{ > > + return (readl(&fpga_manager_base->imgcfg_stat) & > > + ALT_FPGAMGR_IMGCFG_STAT_F2S_INITDONE_OE_SET_MSK) != 0; > > +} > > + > > +int is_fpgamgr_user_mode(void) > > static > > This function will be exposed to other file in later patch. > +{ > > + return (readl(&fpga_manager_base->imgcfg_stat) & > > + ALT_FPGAMGR_IMGCFG_STAT_F2S_USERMODE_SET_MSK) != 0; > > +} > > + > > +static int wait_for_user_mode(void) > > +{ > > + return wait_for_bit(__func__, > > + &fpga_manager_base->imgcfg_stat, > > + ALT_FPGAMGR_IMGCFG_STAT_F2S_USERMODE_SET_MSK, > > + 1, FPGA_TIMEOUT_MSEC, false); > > +} > > + > > +static 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) > > static ? > > This function will be exposed to other file in later patch. > > +{ > > + 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(FPGA_TIMEOUT_MSEC); > > + i++; > > + } > > + > > + debug("Additional %i sync word needed\n", i); > > + > > + /* restoring original CDRATIO */ > > + fpgamgr_set_cd_ratio(cd_ratio); > > + > > + return 0; > > +} > > + > > +/* Read f2s_nconfig_pin and f2s_nstatus_pin; loop until de-asserted */ > > +static int wait_for_nconfig_pin_and_nstatus_pin(void) > > +{ > > + unsigned long mask = ALT_FPGAMGR_IMGCFG_STAT_F2S_NCONFIG_PIN_SET_MSK > | > > + ALT_FPGAMGR_IMGCFG_STAT_F2S_ > NSTATUS_PIN_SET_MSK; > > + > > + /* Poll until f2s_nconfig_pin and f2s_nstatus_pin; loop until > de-asserted, > > + * timeout at 1000ms > > + */ > > + return wait_for_bit(__func__, > > + &fpga_manager_base->imgcfg_stat, > > + mask, > > + false, FPGA_TIMEOUT_MSEC, false); > > +} > > + > > +static int wait_for_f2s_nstatus_pin(unsigned long value) > > +{ > > + /* Poll until f2s to specific value, timeout at 1000ms */ > > + return wait_for_bit(__func__, > > + &fpga_manager_base->imgcfg_stat, > > + ALT_FPGAMGR_IMGCFG_STAT_F2S_ > NSTATUS_PIN_SET_MSK, > > + value, FPGA_TIMEOUT_MSEC, false); > > +} > > + > > +/* 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) > > +{ > > + u32 msel = fpgamgr_get_msel(); > > + > > + if ((msel != 0) && (msel != 1)) { > > + printf("Fail: read msel=%d\n", msel); > > + return -EPERM; > > + } > > + > > + 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, > > + size_t rbf_size) > > +{ > > + unsigned int cd_ratio; > > + bool encrypt, compress; > > + > > + /* > > + * According to the bitstream specification, > > + * both encryption and compression status are > > + * in location before offset 230 of the buffer. > > + */ > > + if (rbf_size < MIN_BITSTREAM_SIZECHECK) > > + return -EINVAL; > > + > > + encrypt = (rbf_data[ENCRYPTION_OFFSET] >> 2) & 3; > > + encrypt = encrypt != 0; > > + > > + compress = (rbf_data[COMPRESSION_OFFSET] >> 1) & 1; > > + compress = !compress; > > + > > + debug("header word %d = %08x\n", 69, rbf_data[69]); > > + debug("header word %d = %08x\n", 229, rbf_data[229]); > > + debug("read from rbf header: encrypt=%d compress=%d\n", encrypt, > compress); > > + > > + /* > > + * 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; > > +} > > + > > +static 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)) > > + return -ETIME; > > + > > + /* 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)) > > + return -ETIME; > > + > > + /* 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 -EPERM; > > + > > + if ((reg & ALT_FPGAMGR_IMGCFG_STAT_F2S_CONDONE_OE_SET_MSK) == 0) > > + return -EPERM; > > + > > + return 0; > > +} > > + > > +/* Start the FPGA programming by initialize the FPGA Manager */ > > +int fpgamgr_program_init(u32 * rbf_data, size_t rbf_size) > > +{ > > + int ret; > > + > > + /* Step 1 */ > > + if (fpgamgr_verify_msel()) > > + return -EPERM; > > + > > + /* Step 2 */ > > + if (fpgamgr_set_cdratio_cdwidth(CFGWDTH_32, rbf_data, rbf_size)) > > + return -EPERM; > > + > > + /* > > + * Step 3: > > + * Make sure no other external devices are trying to interfere with > > + * programming: > > + */ > > + if (wait_for_nconfig_pin_and_nstatus_pin()) > > + return -ETIME; > > + > > + /* > > + * 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()) > > + return -ETIME; > > + > > + /* 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; > > +} > > + > > +/* Ensure the FPGA entering config done */ > > +static 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 -EPERM; > > + } > > + } > > + > > + if (i == FPGA_TIMEOUT_CNT) > > + return -ETIME; > > + > > + return 0; > > +} > > + > > +/* Ensure the FPGA entering user mode */ > > +static int fpgamgr_program_poll_usermode(void) > > +{ > > + unsigned long reg; > > + int ret = 0; > > + > > + if (fpgamgr_dclkcnt_set(0xf)) > > + return -ETIME; > > + > > + 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) != > > + ALT_FPGAMGR_IMGCFG_STAT_F2S_USERMODE_SET_MSK) || > > + ((reg & ALT_FPGAMGR_IMGCFG_STAT_F2S_CONDONE_PIN_SET_MSK) != > > + ALT_FPGAMGR_IMGCFG_STAT_F2S_CONDONE_PIN_SET_MSK) || > > + ((reg & ALT_FPGAMGR_IMGCFG_STAT_F2S_NSTATUS_PIN_SET_MSK) != > > + ALT_FPGAMGR_IMGCFG_STAT_F2S_NSTATUS_PIN_SET_MSK)) > > + return -EPERM; > > + > > + return 0; > > +} > > + > > +int fpgamgr_program_fini(void) > > static and how about fpgamgr_program_finish()? > > This function will be exposed to other file in later patch. I can change to finish. > > +{ > > + /* 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 -EPERM; > > + } > > + 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 -EPERM; > > + } > > + > > + printf("Full Configuration Succeeded.\n"); > > + > > + 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(); > > +} > > diff --git a/include/configs/socfpga_common.h b/include/configs/socfpga_ > common.h > > index da7e4ad..992097d 100644 > > --- a/include/configs/socfpga_common.h > > +++ b/include/configs/socfpga_common.h > > @@ -105,7 +105,8 @@ > > /* > > * FPGA Driver > > */ > > -#ifdef CONFIG_TARGET_SOCFPGA_GEN5 > > +#if defined(CONFIG_TARGET_SOCFPGA_GEN5) || \ > > + defined(CONFIG_TARGET_SOCFPGA_ARRIA10) > > I don't think there's a need for the above wrappers at all. > > Okay > Dinh > _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot