// SPDX-License-Identifier: GPL-2.0+
/*
- * Copyright (C) 2012-2019 Altera Corporation <www.altera.com>
+ * Copyright (C) 2012-2021 Altera Corporation <www.altera.com>
*/
-#include <common.h>
+#include <config.h>
+#include <cpu_func.h>
+#include <hang.h>
+#include <init.h>
+#include <asm/global_data.h>
#include <asm/io.h>
#include <asm/pl310.h>
-#include <asm/u-boot.h>
#include <asm/utils.h>
#include <image.h>
#include <asm/arch/reset_manager.h>
#include <asm/arch/fpga_manager.h>
#include <mmc.h>
#include <memalign.h>
+#include <linux/delay.h>
#define FPGA_BUFSIZ 16 * 1024
+#define FSBL_IMAGE_IS_VALID 0x49535756
+
+#define FSBL_IMAGE_IS_INVALID 0x0
+#define BOOTROM_CONFIGURES_IO_PINMUX 0x3
DECLARE_GLOBAL_DATA_PTR;
-static const struct socfpga_system_manager *sysmgr_regs =
- (struct socfpga_system_manager *)SOCFPGA_SYSMGR_ADDRESS;
+#define BOOTROM_SHARED_MEM_SIZE 0x800 /* 2KB */
+#define BOOTROM_SHARED_MEM_ADDR (CFG_SYS_INIT_RAM_ADDR + \
+ SOCFPGA_PHYS_OCRAM_SIZE - \
+ BOOTROM_SHARED_MEM_SIZE)
+#define RST_STATUS_SHARED_ADDR (BOOTROM_SHARED_MEM_ADDR + 0x438)
+static u32 rst_mgr_status __section(".data");
+
+/*
+ * Bootrom will clear the status register in reset manager and stores the
+ * reset status value in shared memory. Bootrom stores shared data at last
+ * 2KB of onchip RAM.
+ * This function save reset status provided by BootROM to rst_mgr_status.
+ * More information about reset status register value can be found in reset
+ * manager register description.
+ * When running in debugger without Bootrom, r0 to r3 are random values.
+ * So, skip save the value when r0 is not BootROM shared data address.
+ *
+ * r0 - Contains the pointer to the shared memory block. The shared
+ * memory block is located in the top 2 KB of on-chip RAM.
+ * r1 - contains the length of the shared memory.
+ * r2 - unused and set to 0x0.
+ * r3 - points to the version block.
+ */
+void save_boot_params(unsigned long r0, unsigned long r1, unsigned long r2,
+ unsigned long r3)
+{
+ if (r0 == BOOTROM_SHARED_MEM_ADDR)
+ rst_mgr_status = readl(RST_STATUS_SHARED_ADDR);
+
+ save_boot_params_ret();
+}
u32 spl_boot_device(void)
{
- const u32 bsel = readl(&sysmgr_regs->bootinfo);
+ const u32 bsel = readl(socfpga_get_sysmgr_addr() + SYSMGR_A10_BOOTINFO);
switch (SYSMGR_GET_BOOTINFO_BSEL(bsel)) {
case 0x1: /* FPGA (HPS2FPGA Bridge) */
}
}
-#ifdef CONFIG_SPL_MMC_SUPPORT
-u32 spl_boot_mode(const u32 boot_device)
+#ifdef CONFIG_SPL_MMC
+u32 spl_mmc_boot_mode(struct mmc *mmc, const u32 boot_device)
{
#if defined(CONFIG_SPL_FS_FAT) || defined(CONFIG_SPL_FS_EXT4)
return MMCSD_MODE_FS;
void spl_board_init(void)
{
+ int ret;
+
ALLOC_CACHE_ALIGN_BUFFER(char, buf, FPGA_BUFSIZ);
/* enable console uart printing */
preloader_console_init();
- WATCHDOG_RESET();
+ schedule();
arch_early_init_r();
/* If the full FPGA is already loaded, ie.from EPCQ, config fpga pins */
- if (is_fpgamgr_user_mode()) {
- int ret = config_pins(gd->fdt_blob, "shared");
-
+ if ((IS_ENABLED(CONFIG_SOCFPGA_ARRIA10_ALWAYS_REPROGRAM) &&
+ is_regular_boot_valid()) ||
+ (!IS_ENABLED(CONFIG_SOCFPGA_ARRIA10_ALWAYS_REPROGRAM) &&
+ is_fpgamgr_user_mode())) {
+ ret = config_pins(gd->fdt_blob, "shared");
if (ret)
return;
ret = config_pins(gd->fdt_blob, "fpga");
if (ret)
return;
- } else if (!is_fpgamgr_early_user_mode()) {
+ } else if (IS_ENABLED(CONFIG_SOCFPGA_ARRIA10_ALWAYS_REPROGRAM) ||
+ !is_fpgamgr_early_user_mode()) {
/* Program IOSSM(early IO release) or full FPGA */
fpgamgr_program(buf, FPGA_BUFSIZ, 0);
+
+ /* Skipping double program for combined RBF */
+ if (!is_fpgamgr_user_mode()) {
+ /*
+ * Expect FPGA entered early user mode, so
+ * the flag is set to re-program IOSSM
+ */
+ force_periph_program(true);
+
+ /* Re-program IOSSM to stabilize IO system */
+ fpgamgr_program(buf, FPGA_BUFSIZ, 0);
+
+ force_periph_program(false);
+ }
}
/* If the IOSSM/full FPGA is already loaded, start DDR */
- if (is_fpgamgr_early_user_mode() || is_fpgamgr_user_mode())
+ if (is_fpgamgr_early_user_mode() || is_fpgamgr_user_mode()) {
+ if (!is_regular_boot_valid()) {
+ /*
+ * Ensure all signals in stable state before triggering
+ * warm reset. This value is recommended from stress
+ * test.
+ */
+ mdelay(10);
+
+#if IS_ENABLED(CONFIG_CADENCE_QSPI)
+ /*
+ * Trigger software reset to QSPI flash.
+ * On some boards, the QSPI flash reset may not be
+ * connected to the HPS warm reset.
+ */
+ qspi_flash_software_reset();
+#endif
+
+ ret = readl(socfpga_get_rstmgr_addr() +
+ RSTMGR_A10_SYSWARMMASK);
+ /*
+ * Masking s2f & FPGA manager module reset from warm
+ * reset
+ */
+ writel(ret & (~(ALT_RSTMGR_SYSWARMMASK_S2F_SET_MSK |
+ ALT_RSTMGR_FPGAMGRWARMMASK_S2F_SET_MSK)),
+ socfpga_get_rstmgr_addr() +
+ RSTMGR_A10_SYSWARMMASK);
+
+ /*
+ * BootROM will configure both IO and pin mux after a
+ * warm reset
+ */
+ ret = readl(socfpga_get_sysmgr_addr() +
+ SYSMGR_A10_ROMCODE_CTRL);
+ writel(ret | BOOTROM_CONFIGURES_IO_PINMUX,
+ socfpga_get_sysmgr_addr() +
+ SYSMGR_A10_ROMCODE_CTRL);
+
+ /*
+ * Up to here, image is considered valid and should be
+ * set as valid before warm reset is triggered
+ */
+ writel(FSBL_IMAGE_IS_VALID, socfpga_get_sysmgr_addr() +
+ SYSMGR_A10_ROMCODE_INITSWSTATE);
+
+ /*
+ * Set this flag to scratch register, so that a proper
+ * boot progress before / after warm reset can be
+ * tracked by FSBL
+ */
+ set_regular_boot(true);
+
+ schedule();
+
+ reset_cpu();
+ }
+
+ /*
+ * Reset this flag to scratch register, so that a proper
+ * boot progress before / after warm reset can be
+ * tracked by FSBL
+ */
+ set_regular_boot(false);
+
+ ret = readl(socfpga_get_rstmgr_addr() +
+ RSTMGR_A10_SYSWARMMASK);
+
+ /*
+ * Unmasking s2f & FPGA manager module reset from warm
+ * reset
+ */
+ writel(ret | ALT_RSTMGR_SYSWARMMASK_S2F_SET_MSK |
+ ALT_RSTMGR_FPGAMGRWARMMASK_S2F_SET_MSK,
+ socfpga_get_rstmgr_addr() + RSTMGR_A10_SYSWARMMASK);
+
+ /*
+ * Up to here, MPFE hang workaround is considered done and
+ * should be reset as invalid until FSBL successfully loading
+ * SSBL, and prepare jumping to SSBL, then only setting as
+ * valid
+ */
+ writel(FSBL_IMAGE_IS_INVALID, socfpga_get_sysmgr_addr() +
+ SYSMGR_A10_ROMCODE_INITSWSTATE);
+
ddr_calibration_sequence();
+ }
if (!is_fpgamgr_user_mode())
fpgamgr_program(buf, FPGA_BUFSIZ, 0);
void board_init_f(ulong dummy)
{
+ if (spl_early_init())
+ hang();
+
+ socfpga_get_managers_addr();
+
dcache_disable();
socfpga_init_security_policies();
socfpga_sdram_remap_zero();
+ socfpga_pl310_clear();
/* Assert reset to all except L4WD0 and L4TIMER0 */
socfpga_per_reset_all();
socfpga_watchdog_disable();
- spl_early_init();
-
/* Configure the clock based on handoff */
cm_basic_init(gd->fdt_blob);
/* reconfigure and enable the watchdog */
hw_watchdog_init();
- WATCHDOG_RESET();
+ schedule();
#endif /* CONFIG_HW_WATCHDOG */
config_dedicated_pins(gd->fdt_blob);
- WATCHDOG_RESET();
+ schedule();
+}
+
+/* board specific function prior loading SSBL / U-Boot proper */
+void spl_board_prepare_for_boot(void)
+{
+ writel(FSBL_IMAGE_IS_VALID, socfpga_get_sysmgr_addr() +
+ SYSMGR_A10_ROMCODE_INITSWSTATE);
}
projects / u-boot.git / blobdiff