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[PATCH v4 0/5] Add Intel Arria 10 SoC FPGA driver

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[PATCH v4 0/5] Add Intel Arria 10 SoC FPGA driver

tien.fong.chee
From: Tien Fong Chee <[hidden email]>

This is the 4th version of patchset to adds support for Intel Arria 10 SoC FPGA
driver. This version mainly resolved comments from Ley Foon and Dinh in [v3].
This series is working on top of u-boot-socfpga-next branch
http://git.denx.de/?p=u-boot/u-boot-socfpga.git;a=shortlog;h=refs/heads/next.

[v3]: https://www.mail-archive.com/u-boot@.../msg249160.html

v3 -> v4 changes:
-----------------
- Fixed typo on patch 1 and patch 2.
- Created separate patch for enabling FPGA driver build on SPL.
- No change on patch 3.
- Removed some unnecessary wrappers and unused function.

Patchset history
----------------
[v1]: https://www.mail-archive.com/u-boot@.../msg247788.html
[v2]: https://www.mail-archive.com/u-boot@.../msg248541.html

Tien Fong Chee (5):
  arm: socfpga: Remove unused passing parameter of socfpga_bridges_reset
  arm: socfpga: Restructure FPGA driver in the preparation to support
    A10.
  arm: socfpga: Enable FPGA driver on SPL
  arm: socfpga: Move FPGA manager driver to FPGA driver
  arm: socfpga: Add FPGA driver support for Arria 10

 arch/arm/mach-socfpga/Makefile                     |   1 -
 arch/arm/mach-socfpga/fpga_manager.c               |  78 ----
 arch/arm/mach-socfpga/include/mach/fpga_manager.h  |  70 +--
 .../include/mach/fpga_manager_arria10.h            | 100 +++++
 .../mach/{fpga_manager.h => fpga_manager_gen5.h}   |  69 ++-
 .../include/mach/reset_manager_arria10.h           |   2 +-
 arch/arm/mach-socfpga/reset_manager_arria10.c      |   4 +-
 drivers/Makefile                                   |   1 +
 drivers/fpga/Makefile                              |   2 +
 drivers/fpga/socfpga.c                             | 241 +----------
 drivers/fpga/socfpga_arria10.c                     | 479 +++++++++++++++++++++
 drivers/fpga/{socfpga.c => socfpga_gen5.c}         |  98 ++---
 include/configs/socfpga_common.h                   |   3 +-
 13 files changed, 684 insertions(+), 464 deletions(-)
 delete mode 100644 arch/arm/mach-socfpga/fpga_manager.c
 create mode 100644 arch/arm/mach-socfpga/include/mach/fpga_manager_arria10.h
 copy arch/arm/mach-socfpga/include/mach/{fpga_manager.h => fpga_manager_gen5.h} (57%)
 create mode 100644 drivers/fpga/socfpga_arria10.c
 copy drivers/fpga/{socfpga.c => socfpga_gen5.c} (85%)

--
1.8.2.3

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[PATCH v4 1/5] arm: socfpga: Remove unused passing parameter of socfpga_bridges_reset

tien.fong.chee
From: Tien Fong Chee <[hidden email]>

Remove parameter from socfpga_bridges_reset(), and keeping this function
for single purpose which is just triggering reset on bridges.
socfpga_reset_deassert_bridges_handoff() can be called for releasing reset
on any bridges based on the bridge setting defined in fdt.

Signed-off-by: Tien Fong Chee <[hidden email]>
---
 arch/arm/mach-socfpga/include/mach/reset_manager_arria10.h | 2 +-
 arch/arm/mach-socfpga/reset_manager_arria10.c              | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/arm/mach-socfpga/include/mach/reset_manager_arria10.h b/arch/arm/mach-socfpga/include/mach/reset_manager_arria10.h
index 7922db8..b6d7f4f 100644
--- a/arch/arm/mach-socfpga/include/mach/reset_manager_arria10.h
+++ b/arch/arm/mach-socfpga/include/mach/reset_manager_arria10.h
@@ -17,7 +17,7 @@ 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);
-int socfpga_bridges_reset(int enable);
+int socfpga_bridges_reset(void);
 
 struct socfpga_reset_manager {
  u32 stat;
diff --git a/arch/arm/mach-socfpga/reset_manager_arria10.c b/arch/arm/mach-socfpga/reset_manager_arria10.c
index d8c858c..66f1ec2 100644
--- a/arch/arm/mach-socfpga/reset_manager_arria10.c
+++ b/arch/arm/mach-socfpga/reset_manager_arria10.c
@@ -318,13 +318,13 @@ void socfpga_per_reset_all(void)
 }
 
 #if defined(CONFIG_SOCFPGA_VIRTUAL_TARGET)
-int socfpga_bridges_reset(int enable)
+int socfpga_bridges_reset(void)
 {
  /* For SoCFPGA-VT, this is NOP. */
  return 0;
 }
 #else
-int socfpga_bridges_reset(int enable)
+int socfpga_bridges_reset(void)
 {
  int ret;
 
--
1.8.2.3

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[PATCH v4 2/5] arm: socfpga: Restructure FPGA driver in the preparation to support A10.

tien.fong.chee
In reply to this post by tien.fong.chee
From: Tien Fong Chee <[hidden email]>

Move FPGA driver which is Gen5 specific code into Gen5 driver file
and keeping common FPGA driver er intact. All the changes are still keeping
in driver/fpga/ and no functional change. Subsequent patch would move
FPGA manager driver from arch/arm into driver/fpga/ .

Signed-off-by: Tien Fong Chee <[hidden email]>
---
 arch/arm/mach-socfpga/Makefile                     |   2 +-
 arch/arm/mach-socfpga/include/mach/fpga_manager.h  |  68 +-----
 .../mach/{fpga_manager.h => fpga_manager_gen5.h}   |  69 +++---
 drivers/fpga/Makefile                              |   1 +
 drivers/fpga/socfpga.c                             | 241 +--------------------
 drivers/fpga/{socfpga.c => socfpga_gen5.c}         |  54 +----
 6 files changed, 49 insertions(+), 386 deletions(-)
 copy arch/arm/mach-socfpga/include/mach/{fpga_manager.h => fpga_manager_gen5.h} (57%)
 copy drivers/fpga/{socfpga.c => socfpga_gen5.c} (83%)

diff --git a/arch/arm/mach-socfpga/Makefile b/arch/arm/mach-socfpga/Makefile
index 41b779c..286bfef 100644
--- a/arch/arm/mach-socfpga/Makefile
+++ b/arch/arm/mach-socfpga/Makefile
@@ -9,7 +9,6 @@
 
 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
@@ -21,6 +20,7 @@ obj-y += reset_manager_gen5.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
diff --git a/arch/arm/mach-socfpga/include/mach/fpga_manager.h b/arch/arm/mach-socfpga/include/mach/fpga_manager.h
index a077e22..b046c2c 100644
--- a/arch/arm/mach-socfpga/include/mach/fpga_manager.h
+++ b/arch/arm/mach-socfpga/include/mach/fpga_manager.h
@@ -1,5 +1,5 @@
 /*
- * 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
@@ -10,58 +10,9 @@
 
 #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
@@ -69,9 +20,14 @@ struct socfpga_fpga_manager {
 #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_ */
diff --git a/arch/arm/mach-socfpga/include/mach/fpga_manager.h b/arch/arm/mach-socfpga/include/mach/fpga_manager_gen5.h
similarity index 57%
copy from arch/arm/mach-socfpga/include/mach/fpga_manager.h
copy to arch/arm/mach-socfpga/include/mach/fpga_manager_gen5.h
index a077e22..2de7a11 100644
--- a/arch/arm/mach-socfpga/include/mach/fpga_manager.h
+++ b/arch/arm/mach-socfpga/include/mach/fpga_manager_gen5.h
@@ -1,14 +1,38 @@
 /*
- * 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
  */
 
-#ifndef _FPGA_MANAGER_H_
-#define _FPGA_MANAGER_H_
+#ifndef _FPGA_MANAGER_GEN5_H_
+#define _FPGA_MANAGER_GEN5_H_
 
-#include <altera.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 */
@@ -39,39 +63,6 @@ struct socfpga_fpga_manager {
  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
-
-/* FPGA CD Ratio Value */
-#define CDRATIO_x1 0x0
-#define CDRATIO_x2 0x1
-#define CDRATIO_x4 0x2
-#define CDRATIO_x8 0x3
-
-/* SoCFPGA support functions */
-int fpgamgr_test_fpga_ready(void);
-int fpgamgr_poll_fpga_ready(void);
-int fpgamgr_get_mode(void);
+#endif /* __ASSEMBLY__ */
 
-#endif /* _FPGA_MANAGER_H_ */
+#endif /* _FPGA_MANAGER_GEN5_H_ */
diff --git a/drivers/fpga/Makefile b/drivers/fpga/Makefile
index 777706f..b65e5ba 100644
--- a/drivers/fpga/Makefile
+++ b/drivers/fpga/Makefile
@@ -20,4 +20,5 @@ obj-$(CONFIG_FPGA_CYCLON2) += cyclon2.o
 obj-$(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
diff --git a/drivers/fpga/socfpga.c b/drivers/fpga/socfpga.c
index f1b2f2c..5200de7 100644
--- a/drivers/fpga/socfpga.c
+++ b/drivers/fpga/socfpga.c
@@ -14,23 +14,12 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
-/* Timeout count */
-#define FPGA_TIMEOUT_CNT 0x1000000
+#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);
-}
-
-static int fpgamgr_dclkcnt_set(unsigned long cnt)
+int fpgamgr_dclkcnt_set(unsigned long cnt)
 {
  unsigned long i;
 
@@ -53,98 +42,8 @@ static int fpgamgr_dclkcnt_set(unsigned long cnt)
  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;
@@ -169,136 +68,4 @@ static void fpgamgr_program_write(const void *rbf_data, unsigned long rbf_size)
  "3: nop\n"
  : "+r"(src), "+r"(dst), "+r"(loops32), "+r"(loops4) :
  : "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();
-}
+}
\ No newline at end of file
diff --git a/drivers/fpga/socfpga.c b/drivers/fpga/socfpga_gen5.c
similarity index 83%
copy from drivers/fpga/socfpga.c
copy to drivers/fpga/socfpga_gen5.c
index f1b2f2c..3dfb030 100644
--- a/drivers/fpga/socfpga.c
+++ b/drivers/fpga/socfpga_gen5.c
@@ -14,8 +14,7 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
-/* Timeout count */
-#define FPGA_TIMEOUT_CNT 0x1000000
+#define FPGA_TIMEOUT_CNT 0x1000000
 
 static struct socfpga_fpga_manager *fpgamgr_regs =
  (struct socfpga_fpga_manager *)SOCFPGA_FPGAMGRREGS_ADDRESS;
@@ -30,29 +29,6 @@ static void fpgamgr_set_cd_ratio(unsigned long ratio)
  (ratio & 0x3) << FPGAMGRREGS_CTRL_CDRATIO_LSB);
 }
 
-static int fpgamgr_dclkcnt_set(unsigned long cnt)
-{
- unsigned long i;
-
- /* Clear any existing done status */
- if (readl(&fpgamgr_regs->dclkstat))
- writel(0x1, &fpgamgr_regs->dclkstat);
-
- /* Write the dclkcnt */
- writel(cnt, &fpgamgr_regs->dclkcnt);
-
- /* Wait till the dclkcnt done */
- for (i = 0; i < FPGA_TIMEOUT_CNT; i++) {
- if (!readl(&fpgamgr_regs->dclkstat))
- continue;
-
- writel(0x1, &fpgamgr_regs->dclkstat);
- return 0;
- }
-
- return -ETIMEDOUT;
-}
-
 /* Start the FPGA programming by initialize the FPGA Manager */
 static int fpgamgr_program_init(void)
 {
@@ -143,34 +119,6 @@ static int fpgamgr_program_init(void)
  return 0;
 }
 
-/* Write the RBF data to FPGA Manager */
-static void fpgamgr_program_write(const void *rbf_data, unsigned long rbf_size)
-{
- uint32_t src = (uint32_t)rbf_data;
- uint32_t dst = SOCFPGA_FPGAMGRDATA_ADDRESS;
-
- /* Number of loops for 32-byte long copying. */
- uint32_t loops32 = rbf_size / 32;
- /* Number of loops for 4-byte long copying + trailing bytes */
- uint32_t loops4 = DIV_ROUND_UP(rbf_size % 32, 4);
-
- asm volatile(
- "1: ldmia %0!, {r0-r7}\n"
- " stmia %1!, {r0-r7}\n"
- " sub %1, #32\n"
- " subs %2, #1\n"
- " bne 1b\n"
- " cmp %3, #0\n"
- " beq 3f\n"
- "2: ldr %2, [%0], #4\n"
- " str %2, [%1]\n"
- " subs %3, #1\n"
- " bne 2b\n"
- "3: nop\n"
- : "+r"(src), "+r"(dst), "+r"(loops32), "+r"(loops4) :
- : "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", "cc");
-}
-
 /* Ensure the FPGA entering config done */
 static int fpgamgr_program_poll_cd(void)
 {
--
1.8.2.3

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[PATCH v4 3/5] arm: socfpga: Enable FPGA driver on SPL

tien.fong.chee
In reply to this post by tien.fong.chee
From: Tien Fong Chee <[hidden email]>

Enable FPGA driver build for SPL. FPGA driver is needed for SPL
to configure and getting DDR up before loading U-boot into DDR and
booting from there.

Signed-off-by: Tien Fong Chee <[hidden email]>
---
 drivers/Makefile | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/Makefile b/drivers/Makefile
index 4a4b237..b4a2230 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -47,6 +47,7 @@ obj-$(CONFIG_OMAP_USB_PHY) += usb/phy/
 obj-$(CONFIG_SPL_SATA_SUPPORT) += block/
 obj-$(CONFIG_SPL_USB_HOST_SUPPORT) += block/
 obj-$(CONFIG_SPL_MMC_SUPPORT) += block/
+obj-$(CONFIG_FPGA) += fpga/
 endif
 
 ifdef CONFIG_TPL_BUILD
--
1.8.2.3

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[PATCH v4 4/5] arm: socfpga: Move FPGA manager driver to FPGA driver

tien.fong.chee
In reply to this post by tien.fong.chee
From: Tien Fong Chee <[hidden email]>

Move FPGA manager driver which is Gen5 specific code from arch/arm/
into FPGA driver at driver/fpga/. No functional change.

Signed-off-by: Tien Fong Chee <[hidden email]>
---
 arch/arm/mach-socfpga/Makefile       |  1 -
 arch/arm/mach-socfpga/fpga_manager.c | 78 ------------------------------------
 drivers/fpga/socfpga_gen5.c          | 54 +++++++++++++++++++++++++
 3 files changed, 54 insertions(+), 79 deletions(-)
 delete mode 100644 arch/arm/mach-socfpga/fpga_manager.c

diff --git a/arch/arm/mach-socfpga/Makefile b/arch/arm/mach-socfpga/Makefile
index 286bfef..824cd8e 100644
--- a/arch/arm/mach-socfpga/Makefile
+++ b/arch/arm/mach-socfpga/Makefile
@@ -20,7 +20,6 @@ obj-y += reset_manager_gen5.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
diff --git a/arch/arm/mach-socfpga/fpga_manager.c b/arch/arm/mach-socfpga/fpga_manager.c
deleted file mode 100644
index f909573..0000000
--- a/arch/arm/mach-socfpga/fpga_manager.c
+++ /dev/null
@@ -1,78 +0,0 @@
-/*
- * Copyright (C) 2012 Altera Corporation <www.altera.com>
- * All rights reserved.
- *
- * This file contains only support functions used also by the SoCFPGA
- * platform code, the real meat is located in drivers/fpga/socfpga.c .
- *
- * 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;
-
-/* Timeout count */
-#define FPGA_TIMEOUT_CNT 0x1000000
-
-static struct socfpga_fpga_manager *fpgamgr_regs =
- (struct socfpga_fpga_manager *)SOCFPGA_FPGAMGRREGS_ADDRESS;
-
-/* Check whether FPGA Init_Done signal is high */
-static int is_fpgamgr_initdone_high(void)
-{
- unsigned long val;
-
- val = readl(&fpgamgr_regs->gpio_ext_porta);
- return val & FPGAMGRREGS_MON_GPIO_EXT_PORTA_ID_MASK;
-}
-
-/* Get the FPGA mode */
-int fpgamgr_get_mode(void)
-{
- unsigned long val;
-
- val = readl(&fpgamgr_regs->stat);
- return val & FPGAMGRREGS_STAT_MODE_MASK;
-}
-
-/* Check whether FPGA is ready to be accessed */
-int fpgamgr_test_fpga_ready(void)
-{
- /* Check for init done signal */
- if (!is_fpgamgr_initdone_high())
- return 0;
-
- /* Check again to avoid false glitches */
- if (!is_fpgamgr_initdone_high())
- return 0;
-
- if (fpgamgr_get_mode() != FPGAMGRREGS_MODE_USERMODE)
- return 0;
-
- return 1;
-}
-
-/* Poll until FPGA is ready to be accessed or timeout occurred */
-int fpgamgr_poll_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())
- continue;
- /* check again to avoid false glitches */
- if (!is_fpgamgr_initdone_high())
- continue;
- return 1;
- }
-
- return 0;
-}
diff --git a/drivers/fpga/socfpga_gen5.c b/drivers/fpga/socfpga_gen5.c
index 3dfb030..d8f222a 100644
--- a/drivers/fpga/socfpga_gen5.c
+++ b/drivers/fpga/socfpga_gen5.c
@@ -21,6 +21,60 @@ static struct socfpga_fpga_manager *fpgamgr_regs =
 static struct socfpga_system_manager *sysmgr_regs =
  (struct socfpga_system_manager *)SOCFPGA_SYSMGR_ADDRESS;
 
+/* Check whether FPGA Init_Done signal is high */
+static int is_fpgamgr_initdone_high(void)
+{
+ unsigned long val;
+
+ val = readl(&fpgamgr_regs->gpio_ext_porta);
+ return val & FPGAMGRREGS_MON_GPIO_EXT_PORTA_ID_MASK;
+}
+
+/* Get the FPGA mode */
+int fpgamgr_get_mode(void)
+{
+ unsigned long val;
+
+ val = readl(&fpgamgr_regs->stat);
+ return val & FPGAMGRREGS_STAT_MODE_MASK;
+}
+
+/* Check whether FPGA is ready to be accessed */
+int fpgamgr_test_fpga_ready(void)
+{
+ /* Check for init done signal */
+ if (!is_fpgamgr_initdone_high())
+ return 0;
+
+ /* Check again to avoid false glitches */
+ if (!is_fpgamgr_initdone_high())
+ return 0;
+
+ if (fpgamgr_get_mode() != FPGAMGRREGS_MODE_USERMODE)
+ return 0;
+
+ return 1;
+}
+
+/* Poll until FPGA is ready to be accessed or timeout occurred */
+int fpgamgr_poll_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())
+ continue;
+ /* check again to avoid false glitches */
+ if (!is_fpgamgr_initdone_high())
+ continue;
+ return 1;
+ }
+
+ return 0;
+}
+
 /* Set CD ratio */
 static void fpgamgr_set_cd_ratio(unsigned long ratio)
 {
--
1.8.2.3

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[PATCH v4 5/5] arm: socfpga: Add FPGA driver support for Arria 10

tien.fong.chee
In reply to this post by tien.fong.chee
From: Tien Fong Chee <[hidden email]>

Add FPGA driver support for Arria 10.

Signed-off-by: Tien Fong Chee <[hidden email]>
---
 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                     | 479 +++++++++++++++++++++
 include/configs/socfpga_common.h                   |   3 +-
 5 files changed, 583 insertions(+), 2 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/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..9cbf696
--- /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_finish(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..5c717a8
--- /dev/null
+++ b/drivers/fpga/socfpga_arria10.c
@@ -0,0 +1,479 @@
+/*
+ * 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);
+}
+
+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)
+{
+ 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)
+{
+ 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_finish(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 -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_finish();
+}
diff --git a/include/configs/socfpga_common.h b/include/configs/socfpga_common.h
index da7e4ad..913b9f1 100644
--- a/include/configs/socfpga_common.h
+++ b/include/configs/socfpga_common.h
@@ -105,14 +105,13 @@
 /*
  * FPGA Driver
  */
-#ifdef CONFIG_TARGET_SOCFPGA_GEN5
 #ifdef CONFIG_CMD_FPGA
 #define CONFIG_FPGA
 #define CONFIG_FPGA_ALTERA
 #define CONFIG_FPGA_SOCFPGA
 #define CONFIG_FPGA_COUNT 1
 #endif
-#endif
+
 /*
  * L4 OSC1 Timer 0
  */
--
1.8.2.3

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Re: [PATCH v4 0/5] Add Intel Arria 10 SoC FPGA driver

tien.fong.chee
In reply to this post by tien.fong.chee
On Jum, 2017-05-19 at 12:14 +0800, [hidden email] wrote:

> From: Tien Fong Chee <[hidden email]>
>
> This is the 4th version of patchset to adds support for Intel Arria
> 10 SoC FPGA
> driver. This version mainly resolved comments from Ley Foon and Dinh
> in [v3].
> This series is working on top of u-boot-socfpga-next branch
> http://git.denx.de/?p=u-boot/u-boot-socfpga.git;a=shortlog;h=refs/hea
> ds/next.
>
Hi Marek,

How about this series of patches? Good to get accepted?

Thanks. 

> [v3]: https://www.mail-archive.com/u-
> [hidden email]/msg249160.html
>
> v3 -> v4 changes:
> -----------------
> - Fixed typo on patch 1 and patch 2.
> - Created separate patch for enabling FPGA driver build on SPL.
> - No change on patch 3.
> - Removed some unnecessary wrappers and unused function.
>
> Patchset history
> ----------------
> [v1]: https://www.mail-archive.com/u-boot@.../msg247788.htm
> l
> [v2]: https://www.mail-archive.com/u-boot@.../msg248541.htm
> l
>
> Tien Fong Chee (5):
>   arm: socfpga: Remove unused passing parameter of
> socfpga_bridges_reset
>   arm: socfpga: Restructure FPGA driver in the preparation to support
>     A10.
>   arm: socfpga: Enable FPGA driver on SPL
>   arm: socfpga: Move FPGA manager driver to FPGA driver
>   arm: socfpga: Add FPGA driver support for Arria 10
>
>  arch/arm/mach-socfpga/Makefile                     |   1 -
>  arch/arm/mach-socfpga/fpga_manager.c               |  78 ----
>  arch/arm/mach-socfpga/include/mach/fpga_manager.h  |  70 +--
>  .../include/mach/fpga_manager_arria10.h            | 100 +++++
>  .../mach/{fpga_manager.h => fpga_manager_gen5.h}   |  69 ++-
>  .../include/mach/reset_manager_arria10.h           |   2 +-
>  arch/arm/mach-socfpga/reset_manager_arria10.c      |   4 +-
>  drivers/Makefile                                   |   1 +
>  drivers/fpga/Makefile                              |   2 +
>  drivers/fpga/socfpga.c                             | 241 +----------
>  drivers/fpga/socfpga_arria10.c                     | 479
> +++++++++++++++++++++
>  drivers/fpga/{socfpga.c => socfpga_gen5.c}         |  98 ++---
>  include/configs/socfpga_common.h                   |   3 +-
>  13 files changed, 684 insertions(+), 464 deletions(-)
>  delete mode 100644 arch/arm/mach-socfpga/fpga_manager.c
>  create mode 100644 arch/arm/mach-
> socfpga/include/mach/fpga_manager_arria10.h
>  copy arch/arm/mach-socfpga/include/mach/{fpga_manager.h =>
> fpga_manager_gen5.h} (57%)
>  create mode 100644 drivers/fpga/socfpga_arria10.c
>  copy drivers/fpga/{socfpga.c => socfpga_gen5.c} (85%)
>
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Re: [PATCH v4 0/5] Add Intel Arria 10 SoC FPGA driver

Marek Vasut-3
On 05/22/2017 08:46 AM, Chee, Tien Fong wrote:

> On Jum, 2017-05-19 at 12:14 +0800, [hidden email] wrote:
>> From: Tien Fong Chee <[hidden email]>
>>
>> This is the 4th version of patchset to adds support for Intel Arria
>> 10 SoC FPGA
>> driver. This version mainly resolved comments from Ley Foon and Dinh
>> in [v3].
>> This series is working on top of u-boot-socfpga-next branch
>> http://git.denx.de/?p=u-boot/u-boot-socfpga.git;a=shortlog;h=refs/hea
>> ds/next.
>>
> Hi Marek,
>
> How about this series of patches? Good to get accepted?

How many A-B/R-B tags did it collect thus far ?

--
Best regards,
Marek Vasut
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Re: [PATCH v4 3/5] arm: socfpga: Enable FPGA driver on SPL

Dinh Nguyen-5
In reply to this post by tien.fong.chee


On 05/18/2017 11:14 PM, [hidden email] wrote:

> From: Tien Fong Chee <[hidden email]>
>
> Enable FPGA driver build for SPL. FPGA driver is needed for SPL
> to configure and getting DDR up before loading U-boot into DDR and
> booting from there.
>
> Signed-off-by: Tien Fong Chee <[hidden email]>
> ---
>  drivers/Makefile | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/drivers/Makefile b/drivers/Makefile
> index 4a4b237..b4a2230 100644
> --- a/drivers/Makefile
> +++ b/drivers/Makefile
> @@ -47,6 +47,7 @@ obj-$(CONFIG_OMAP_USB_PHY) += usb/phy/
>  obj-$(CONFIG_SPL_SATA_SUPPORT) += block/
>  obj-$(CONFIG_SPL_USB_HOST_SUPPORT) += block/
>  obj-$(CONFIG_SPL_MMC_SUPPORT) += block/
> +obj-$(CONFIG_FPGA) += fpga/

There's a SPL_FPGA_SUPPORT already defined. Can you use that?

Dinh
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Re: [PATCH v4 3/5] arm: socfpga: Enable FPGA driver on SPL

Dinh Nguyen-5


On 05/22/2017 09:23 AM, Dinh Nguyen wrote:

>
>
> On 05/18/2017 11:14 PM, [hidden email] wrote:
>> From: Tien Fong Chee <[hidden email]>
>>
>> Enable FPGA driver build for SPL. FPGA driver is needed for SPL
>> to configure and getting DDR up before loading U-boot into DDR and
>> booting from there.
>>
>> Signed-off-by: Tien Fong Chee <[hidden email]>
>> ---
>>  drivers/Makefile | 1 +
>>  1 file changed, 1 insertion(+)
>>
>> diff --git a/drivers/Makefile b/drivers/Makefile
>> index 4a4b237..b4a2230 100644
>> --- a/drivers/Makefile
>> +++ b/drivers/Makefile
>> @@ -47,6 +47,7 @@ obj-$(CONFIG_OMAP_USB_PHY) += usb/phy/
>>  obj-$(CONFIG_SPL_SATA_SUPPORT) += block/
>>  obj-$(CONFIG_SPL_USB_HOST_SUPPORT) += block/
>>  obj-$(CONFIG_SPL_MMC_SUPPORT) += block/
>> +obj-$(CONFIG_FPGA) += fpga/
>
> There's a SPL_FPGA_SUPPORT already defined. Can you use that?
>

Also with the above change, you're building in the FPGA driver into the
SPL for Gen5 devices, you probably didn't want that.

  CC      spl/drivers/fpga/fpga.o
  CC      spl/drivers/fpga/altera.o
  CC      spl/drivers/fpga/socfpga.o

Dinh
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Re: [PATCH v4 2/5] arm: socfpga: Restructure FPGA driver in the preparation to support A10.

Dinh Nguyen-5
In reply to this post by tien.fong.chee


On 05/18/2017 11:14 PM, [hidden email] wrote:
> From: Tien Fong Chee <[hidden email]>
>
> Move FPGA driver which is Gen5 specific code into Gen5 driver file
> and keeping common FPGA driver er intact. All the changes are still keeping

remove the 'er'.

Also remove the ending '.' at the end of the commit header.

Dinh
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Re: [PATCH v4 2/5] arm: socfpga: Restructure FPGA driver in the preparation to support A10.

tien.fong.chee
On Isn, 2017-05-22 at 10:13 -0500, Dinh Nguyen wrote:

>
> On 05/18/2017 11:14 PM, [hidden email] wrote:
> >
> > From: Tien Fong Chee <[hidden email]>
> >
> > Move FPGA driver which is Gen5 specific code into Gen5 driver file
> > and keeping common FPGA driver er intact. All the changes are still
> > keeping
> remove the 'er'.
>
> Also remove the ending '.' at the end of the commit header.
>
> Dinh

Okay.
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Re: [PATCH v4 3/5] arm: socfpga: Enable FPGA driver on SPL

tien.fong.chee
In reply to this post by Dinh Nguyen-5
On Isn, 2017-05-22 at 10:11 -0500, Dinh Nguyen wrote:

>
> On 05/22/2017 09:23 AM, Dinh Nguyen wrote:
> >
> >
> >
> > On 05/18/2017 11:14 PM, [hidden email] wrote:
> > >
> > > From: Tien Fong Chee <[hidden email]>
> > >
> > > Enable FPGA driver build for SPL. FPGA driver is needed for SPL
> > > to configure and getting DDR up before loading U-boot into DDR
> > > and
> > > booting from there.
> > >
> > > Signed-off-by: Tien Fong Chee <[hidden email]>
> > > ---
> > >  drivers/Makefile | 1 +
> > >  1 file changed, 1 insertion(+)
> > >
> > > diff --git a/drivers/Makefile b/drivers/Makefile
> > > index 4a4b237..b4a2230 100644
> > > --- a/drivers/Makefile
> > > +++ b/drivers/Makefile
> > > @@ -47,6 +47,7 @@ obj-$(CONFIG_OMAP_USB_PHY) += usb/phy/
> > >  obj-$(CONFIG_SPL_SATA_SUPPORT) += block/
> > >  obj-$(CONFIG_SPL_USB_HOST_SUPPORT) += block/
> > >  obj-$(CONFIG_SPL_MMC_SUPPORT) += block/
> > > +obj-$(CONFIG_FPGA) += fpga/
> > There's a SPL_FPGA_SUPPORT already defined. Can you use that?
> >
Okay, sure.
> Also with the above change, you're building in the FPGA driver into
> the
> SPL for Gen5 devices, you probably didn't want that.
>
>   CC      spl/drivers/fpga/fpga.o
>   CC      spl/drivers/fpga/altera.o
>   CC      spl/drivers/fpga/socfpga.o
>
> Dinh
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