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-rw-r--r--arch/arm/mach-socfpga/spl.c229
1 files changed, 229 insertions, 0 deletions
diff --git a/arch/arm/mach-socfpga/spl.c b/arch/arm/mach-socfpga/spl.c
new file mode 100644
index 0000000000..f994658452
--- /dev/null
+++ b/arch/arm/mach-socfpga/spl.c
@@ -0,0 +1,229 @@
+/*
+ * Copyright (C) 2012 Altera Corporation <www.altera.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.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 <spl.h>
+#include <asm/arch/system_manager.h>
+#include <asm/arch/freeze_controller.h>
+#include <asm/arch/clock_manager.h>
+#include <asm/arch/scan_manager.h>
+#include <asm/arch/sdram.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static struct pl310_regs *const pl310 =
+ (struct pl310_regs *)CONFIG_SYS_PL310_BASE;
+
+#define MAIN_VCO_BASE ( \
+ (CONFIG_HPS_MAINPLLGRP_VCO_DENOM << \
+ CLKMGR_MAINPLLGRP_VCO_DENOM_OFFSET) | \
+ (CONFIG_HPS_MAINPLLGRP_VCO_NUMER << \
+ CLKMGR_MAINPLLGRP_VCO_NUMER_OFFSET) \
+ )
+
+#define PERI_VCO_BASE ( \
+ (CONFIG_HPS_PERPLLGRP_VCO_PSRC << \
+ CLKMGR_PERPLLGRP_VCO_PSRC_OFFSET) | \
+ (CONFIG_HPS_PERPLLGRP_VCO_DENOM << \
+ CLKMGR_PERPLLGRP_VCO_DENOM_OFFSET) | \
+ (CONFIG_HPS_PERPLLGRP_VCO_NUMER << \
+ CLKMGR_PERPLLGRP_VCO_NUMER_OFFSET) \
+ )
+
+#define SDR_VCO_BASE ( \
+ (CONFIG_HPS_SDRPLLGRP_VCO_SSRC << \
+ CLKMGR_SDRPLLGRP_VCO_SSRC_OFFSET) | \
+ (CONFIG_HPS_SDRPLLGRP_VCO_DENOM << \
+ CLKMGR_SDRPLLGRP_VCO_DENOM_OFFSET) | \
+ (CONFIG_HPS_SDRPLLGRP_VCO_NUMER << \
+ CLKMGR_SDRPLLGRP_VCO_NUMER_OFFSET) \
+ )
+
+void board_init_f(ulong dummy)
+{
+ struct socfpga_system_manager *sysmgr_regs =
+ (struct socfpga_system_manager *)SOCFPGA_SYSMGR_ADDRESS;
+ unsigned long reg;
+ /*
+ * First C code to run. Clear fake OCRAM ECC first as SBE
+ * and DBE might triggered during power on
+ */
+ reg = readl(&sysmgr_regs->eccgrp_ocram);
+ if (reg & SYSMGR_ECC_OCRAM_SERR)
+ writel(SYSMGR_ECC_OCRAM_SERR | SYSMGR_ECC_OCRAM_EN,
+ &sysmgr_regs->eccgrp_ocram);
+ if (reg & SYSMGR_ECC_OCRAM_DERR)
+ writel(SYSMGR_ECC_OCRAM_DERR | SYSMGR_ECC_OCRAM_EN,
+ &sysmgr_regs->eccgrp_ocram);
+
+ memset(__bss_start, 0, __bss_end - __bss_start);
+
+ /* Remap SDRAM to 0x0 */
+ writel(0x1, &pl310->pl310_addr_filter_start);
+
+ board_init_r(NULL, 0);
+}
+
+u32 spl_boot_device(void)
+{
+ return BOOT_DEVICE_RAM;
+}
+
+/*
+ * Board initialization after bss clearance
+ */
+void spl_board_init(void)
+{
+ unsigned long sdram_size;
+#ifndef CONFIG_SOCFPGA_VIRTUAL_TARGET
+ cm_config_t cm_default_cfg = {
+ /* main group */
+ MAIN_VCO_BASE,
+ (CONFIG_HPS_MAINPLLGRP_MPUCLK_CNT <<
+ CLKMGR_MAINPLLGRP_MPUCLK_CNT_OFFSET),
+ (CONFIG_HPS_MAINPLLGRP_MAINCLK_CNT <<
+ CLKMGR_MAINPLLGRP_MAINCLK_CNT_OFFSET),
+ (CONFIG_HPS_MAINPLLGRP_DBGATCLK_CNT <<
+ CLKMGR_MAINPLLGRP_DBGATCLK_CNT_OFFSET),
+ (CONFIG_HPS_MAINPLLGRP_MAINQSPICLK_CNT <<
+ CLKMGR_MAINPLLGRP_MAINQSPICLK_CNT_OFFSET),
+ (CONFIG_HPS_MAINPLLGRP_MAINNANDSDMMCCLK_CNT <<
+ CLKMGR_PERPLLGRP_PERNANDSDMMCCLK_CNT_OFFSET),
+ (CONFIG_HPS_MAINPLLGRP_CFGS2FUSER0CLK_CNT <<
+ CLKMGR_MAINPLLGRP_CFGS2FUSER0CLK_CNT_OFFSET),
+ (CONFIG_HPS_MAINPLLGRP_MAINDIV_L3MPCLK <<
+ CLKMGR_MAINPLLGRP_MAINDIV_L3MPCLK_OFFSET) |
+ (CONFIG_HPS_MAINPLLGRP_MAINDIV_L3SPCLK <<
+ CLKMGR_MAINPLLGRP_MAINDIV_L3SPCLK_OFFSET) |
+ (CONFIG_HPS_MAINPLLGRP_MAINDIV_L4MPCLK <<
+ CLKMGR_MAINPLLGRP_MAINDIV_L4MPCLK_OFFSET) |
+ (CONFIG_HPS_MAINPLLGRP_MAINDIV_L4SPCLK <<
+ CLKMGR_MAINPLLGRP_MAINDIV_L4SPCLK_OFFSET),
+ (CONFIG_HPS_MAINPLLGRP_DBGDIV_DBGATCLK <<
+ CLKMGR_MAINPLLGRP_DBGDIV_DBGATCLK_OFFSET) |
+ (CONFIG_HPS_MAINPLLGRP_DBGDIV_DBGCLK <<
+ CLKMGR_MAINPLLGRP_DBGDIV_DBGCLK_OFFSET),
+ (CONFIG_HPS_MAINPLLGRP_TRACEDIV_TRACECLK <<
+ CLKMGR_MAINPLLGRP_TRACEDIV_TRACECLK_OFFSET),
+ (CONFIG_HPS_MAINPLLGRP_L4SRC_L4MP <<
+ CLKMGR_MAINPLLGRP_L4SRC_L4MP_OFFSET) |
+ (CONFIG_HPS_MAINPLLGRP_L4SRC_L4SP <<
+ CLKMGR_MAINPLLGRP_L4SRC_L4SP_OFFSET),
+
+ /* peripheral group */
+ PERI_VCO_BASE,
+ (CONFIG_HPS_PERPLLGRP_EMAC0CLK_CNT <<
+ CLKMGR_PERPLLGRP_EMAC0CLK_CNT_OFFSET),
+ (CONFIG_HPS_PERPLLGRP_EMAC1CLK_CNT <<
+ CLKMGR_PERPLLGRP_EMAC1CLK_CNT_OFFSET),
+ (CONFIG_HPS_PERPLLGRP_PERQSPICLK_CNT <<
+ CLKMGR_PERPLLGRP_PERQSPICLK_CNT_OFFSET),
+ (CONFIG_HPS_PERPLLGRP_PERNANDSDMMCCLK_CNT <<
+ CLKMGR_PERPLLGRP_PERNANDSDMMCCLK_CNT_OFFSET),
+ (CONFIG_HPS_PERPLLGRP_PERBASECLK_CNT <<
+ CLKMGR_PERPLLGRP_PERBASECLK_CNT_OFFSET),
+ (CONFIG_HPS_PERPLLGRP_S2FUSER1CLK_CNT <<
+ CLKMGR_PERPLLGRP_S2FUSER1CLK_CNT_OFFSET),
+ (CONFIG_HPS_PERPLLGRP_DIV_USBCLK <<
+ CLKMGR_PERPLLGRP_DIV_USBCLK_OFFSET) |
+ (CONFIG_HPS_PERPLLGRP_DIV_SPIMCLK <<
+ CLKMGR_PERPLLGRP_DIV_SPIMCLK_OFFSET) |
+ (CONFIG_HPS_PERPLLGRP_DIV_CAN0CLK <<
+ CLKMGR_PERPLLGRP_DIV_CAN0CLK_OFFSET) |
+ (CONFIG_HPS_PERPLLGRP_DIV_CAN1CLK <<
+ CLKMGR_PERPLLGRP_DIV_CAN1CLK_OFFSET),
+ (CONFIG_HPS_PERPLLGRP_GPIODIV_GPIODBCLK <<
+ CLKMGR_PERPLLGRP_GPIODIV_GPIODBCLK_OFFSET),
+ (CONFIG_HPS_PERPLLGRP_SRC_QSPI <<
+ CLKMGR_PERPLLGRP_SRC_QSPI_OFFSET) |
+ (CONFIG_HPS_PERPLLGRP_SRC_NAND <<
+ CLKMGR_PERPLLGRP_SRC_NAND_OFFSET) |
+ (CONFIG_HPS_PERPLLGRP_SRC_SDMMC <<
+ CLKMGR_PERPLLGRP_SRC_SDMMC_OFFSET),
+
+ /* sdram pll group */
+ SDR_VCO_BASE,
+ (CONFIG_HPS_SDRPLLGRP_DDRDQSCLK_PHASE <<
+ CLKMGR_SDRPLLGRP_DDRDQSCLK_PHASE_OFFSET) |
+ (CONFIG_HPS_SDRPLLGRP_DDRDQSCLK_CNT <<
+ CLKMGR_SDRPLLGRP_DDRDQSCLK_CNT_OFFSET),
+ (CONFIG_HPS_SDRPLLGRP_DDR2XDQSCLK_PHASE <<
+ CLKMGR_SDRPLLGRP_DDR2XDQSCLK_PHASE_OFFSET) |
+ (CONFIG_HPS_SDRPLLGRP_DDR2XDQSCLK_CNT <<
+ CLKMGR_SDRPLLGRP_DDR2XDQSCLK_CNT_OFFSET),
+ (CONFIG_HPS_SDRPLLGRP_DDRDQCLK_PHASE <<
+ CLKMGR_SDRPLLGRP_DDRDQCLK_PHASE_OFFSET) |
+ (CONFIG_HPS_SDRPLLGRP_DDRDQCLK_CNT <<
+ CLKMGR_SDRPLLGRP_DDRDQCLK_CNT_OFFSET),
+ (CONFIG_HPS_SDRPLLGRP_S2FUSER2CLK_PHASE <<
+ CLKMGR_SDRPLLGRP_S2FUSER2CLK_PHASE_OFFSET) |
+ (CONFIG_HPS_SDRPLLGRP_S2FUSER2CLK_CNT <<
+ CLKMGR_SDRPLLGRP_S2FUSER2CLK_CNT_OFFSET),
+
+ };
+
+ debug("Freezing all I/O banks\n");
+ /* freeze all IO banks */
+ sys_mgr_frzctrl_freeze_req();
+
+ socfpga_sdram_enable();
+ socfpga_uart0_enable();
+ socfpga_osc1timer_enable();
+
+ timer_init();
+
+ debug("Reconfigure Clock Manager\n");
+ /* reconfigure the PLLs */
+ cm_basic_init(&cm_default_cfg);
+
+ /* Enable bootrom to configure IOs. */
+ sysmgr_enable_warmrstcfgio();
+
+ /* configure the IOCSR / IO buffer settings */
+ if (scan_mgr_configure_iocsr())
+ hang();
+
+ /* configure the pin muxing through system manager */
+ sysmgr_pinmux_init();
+#endif /* CONFIG_SOCFPGA_VIRTUAL_TARGET */
+
+ /* de-assert reset for peripherals and bridges based on handoff */
+ reset_deassert_peripherals_handoff();
+
+ debug("Unfreezing/Thaw all I/O banks\n");
+ /* unfreeze / thaw all IO banks */
+ sys_mgr_frzctrl_thaw_req();
+
+ /* enable console uart printing */
+ preloader_console_init();
+
+ if (sdram_mmr_init_full(0xffffffff) != 0) {
+ puts("SDRAM init failed.\n");
+ hang();
+ }
+
+ debug("SDRAM: Calibrating PHY\n");
+ /* SDRAM calibration */
+ if (sdram_calibration_full() == 0) {
+ puts("SDRAM calibration failed.\n");
+ hang();
+ }
+
+ sdram_size = sdram_calculate_size();
+ debug("SDRAM: %ld MiB\n", sdram_size >> 20);
+
+ /* Sanity check ensure correct SDRAM size specified */
+ if (get_ram_size(0, sdram_size) != sdram_size) {
+ puts("SDRAM size check failed!\n");
+ hang();
+ }
+}
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