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-rw-r--r--arch/arm/mach-socfpga/Makefile12
-rw-r--r--arch/arm/mach-socfpga/clock_manager.c560
-rw-r--r--arch/arm/mach-socfpga/fpga_manager.c78
-rw-r--r--arch/arm/mach-socfpga/freeze_controller.c213
-rw-r--r--arch/arm/mach-socfpga/misc.c289
-rw-r--r--arch/arm/mach-socfpga/reset_manager.c139
-rw-r--r--arch/arm/mach-socfpga/scan_manager.c209
-rw-r--r--arch/arm/mach-socfpga/spl.c229
-rw-r--r--arch/arm/mach-socfpga/system_manager.c77
-rw-r--r--arch/arm/mach-socfpga/timer.c24
-rw-r--r--arch/arm/mach-socfpga/u-boot-spl.lds45
11 files changed, 1875 insertions, 0 deletions
diff --git a/arch/arm/mach-socfpga/Makefile b/arch/arm/mach-socfpga/Makefile
new file mode 100644
index 0000000..7524ef9
--- /dev/null
+++ b/arch/arm/mach-socfpga/Makefile
@@ -0,0 +1,12 @@
+#
+# (C) Copyright 2000-2003
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# Copyright (C) 2012 Altera Corporation <www.altera.com>
+#
+# SPDX-License-Identifier: GPL-2.0+
+#
+
+obj-y += misc.o timer.o reset_manager.o system_manager.o clock_manager.o \
+ fpga_manager.o
+obj-$(CONFIG_SPL_BUILD) += spl.o freeze_controller.o scan_manager.o
diff --git a/arch/arm/mach-socfpga/clock_manager.c b/arch/arm/mach-socfpga/clock_manager.c
new file mode 100644
index 0000000..fa3b93a
--- /dev/null
+++ b/arch/arm/mach-socfpga/clock_manager.c
@@ -0,0 +1,560 @@
+/*
+ * Copyright (C) 2013 Altera Corporation <www.altera.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/clock_manager.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static const struct socfpga_clock_manager *clock_manager_base =
+ (struct socfpga_clock_manager *)SOCFPGA_CLKMGR_ADDRESS;
+
+static void cm_wait_for_lock(uint32_t mask)
+{
+ register uint32_t inter_val;
+ uint32_t retry = 0;
+ do {
+ inter_val = readl(&clock_manager_base->inter) & mask;
+ if (inter_val == mask)
+ retry++;
+ else
+ retry = 0;
+ if (retry >= 10)
+ break;
+ } while (1);
+}
+
+/* function to poll in the fsm busy bit */
+static void cm_wait_for_fsm(void)
+{
+ while (readl(&clock_manager_base->stat) & CLKMGR_STAT_BUSY)
+ ;
+}
+
+/*
+ * function to write the bypass register which requires a poll of the
+ * busy bit
+ */
+static void cm_write_bypass(uint32_t val)
+{
+ writel(val, &clock_manager_base->bypass);
+ cm_wait_for_fsm();
+}
+
+/* function to write the ctrl register which requires a poll of the busy bit */
+static void cm_write_ctrl(uint32_t val)
+{
+ writel(val, &clock_manager_base->ctrl);
+ cm_wait_for_fsm();
+}
+
+/* function to write a clock register that has phase information */
+static void cm_write_with_phase(uint32_t value,
+ uint32_t reg_address, uint32_t mask)
+{
+ /* poll until phase is zero */
+ while (readl(reg_address) & mask)
+ ;
+
+ writel(value, reg_address);
+
+ while (readl(reg_address) & mask)
+ ;
+}
+
+/*
+ * Setup clocks while making no assumptions about previous state of the clocks.
+ *
+ * Start by being paranoid and gate all sw managed clocks
+ * Put all plls in bypass
+ * Put all plls VCO registers back to reset value (bandgap power down).
+ * Put peripheral and main pll src to reset value to avoid glitch.
+ * Delay 5 us.
+ * Deassert bandgap power down and set numerator and denominator
+ * Start 7 us timer.
+ * set internal dividers
+ * Wait for 7 us timer.
+ * Enable plls
+ * Set external dividers while plls are locking
+ * Wait for pll lock
+ * Assert/deassert outreset all.
+ * Take all pll's out of bypass
+ * Clear safe mode
+ * set source main and peripheral clocks
+ * Ungate clocks
+ */
+
+void cm_basic_init(const cm_config_t *cfg)
+{
+ uint32_t start, timeout;
+
+ /* Start by being paranoid and gate all sw managed clocks */
+
+ /*
+ * We need to disable nandclk
+ * and then do another apb access before disabling
+ * gatting off the rest of the periperal clocks.
+ */
+ writel(~CLKMGR_PERPLLGRP_EN_NANDCLK_MASK &
+ readl(&clock_manager_base->per_pll.en),
+ &clock_manager_base->per_pll.en);
+
+ /* DO NOT GATE OFF DEBUG CLOCKS & BRIDGE CLOCKS */
+ writel(CLKMGR_MAINPLLGRP_EN_DBGTIMERCLK_MASK |
+ CLKMGR_MAINPLLGRP_EN_DBGTRACECLK_MASK |
+ CLKMGR_MAINPLLGRP_EN_DBGCLK_MASK |
+ CLKMGR_MAINPLLGRP_EN_DBGATCLK_MASK |
+ CLKMGR_MAINPLLGRP_EN_S2FUSER0CLK_MASK |
+ CLKMGR_MAINPLLGRP_EN_L4MPCLK_MASK,
+ &clock_manager_base->main_pll.en);
+
+ writel(0, &clock_manager_base->sdr_pll.en);
+
+ /* now we can gate off the rest of the peripheral clocks */
+ writel(0, &clock_manager_base->per_pll.en);
+
+ /* Put all plls in bypass */
+ cm_write_bypass(CLKMGR_BYPASS_PERPLL | CLKMGR_BYPASS_SDRPLL |
+ CLKMGR_BYPASS_MAINPLL);
+
+ /* Put all plls VCO registers back to reset value. */
+ writel(CLKMGR_MAINPLLGRP_VCO_RESET_VALUE &
+ ~CLKMGR_MAINPLLGRP_VCO_REGEXTSEL_MASK,
+ &clock_manager_base->main_pll.vco);
+ writel(CLKMGR_PERPLLGRP_VCO_RESET_VALUE &
+ ~CLKMGR_PERPLLGRP_VCO_REGEXTSEL_MASK,
+ &clock_manager_base->per_pll.vco);
+ writel(CLKMGR_SDRPLLGRP_VCO_RESET_VALUE &
+ ~CLKMGR_SDRPLLGRP_VCO_REGEXTSEL_MASK,
+ &clock_manager_base->sdr_pll.vco);
+
+ /*
+ * The clocks to the flash devices and the L4_MAIN clocks can
+ * glitch when coming out of safe mode if their source values
+ * are different from their reset value. So the trick it to
+ * put them back to their reset state, and change input
+ * after exiting safe mode but before ungating the clocks.
+ */
+ writel(CLKMGR_PERPLLGRP_SRC_RESET_VALUE,
+ &clock_manager_base->per_pll.src);
+ writel(CLKMGR_MAINPLLGRP_L4SRC_RESET_VALUE,
+ &clock_manager_base->main_pll.l4src);
+
+ /* read back for the required 5 us delay. */
+ readl(&clock_manager_base->main_pll.vco);
+ readl(&clock_manager_base->per_pll.vco);
+ readl(&clock_manager_base->sdr_pll.vco);
+
+
+ /*
+ * We made sure bgpwr down was assert for 5 us. Now deassert BG PWR DN
+ * with numerator and denominator.
+ */
+ writel(cfg->main_vco_base, &clock_manager_base->main_pll.vco);
+ writel(cfg->peri_vco_base, &clock_manager_base->per_pll.vco);
+ writel(cfg->sdram_vco_base, &clock_manager_base->sdr_pll.vco);
+
+ /*
+ * Time starts here
+ * must wait 7 us from BGPWRDN_SET(0) to VCO_ENABLE_SET(1)
+ */
+ start = get_timer(0);
+ /* timeout in unit of us as CONFIG_SYS_HZ = 1000*1000 */
+ timeout = 7;
+
+ /* main mpu */
+ writel(cfg->mpuclk, &clock_manager_base->main_pll.mpuclk);
+
+ /* main main clock */
+ writel(cfg->mainclk, &clock_manager_base->main_pll.mainclk);
+
+ /* main for dbg */
+ writel(cfg->dbgatclk, &clock_manager_base->main_pll.dbgatclk);
+
+ /* main for cfgs2fuser0clk */
+ writel(cfg->cfg2fuser0clk,
+ &clock_manager_base->main_pll.cfgs2fuser0clk);
+
+ /* Peri emac0 50 MHz default to RMII */
+ writel(cfg->emac0clk, &clock_manager_base->per_pll.emac0clk);
+
+ /* Peri emac1 50 MHz default to RMII */
+ writel(cfg->emac1clk, &clock_manager_base->per_pll.emac1clk);
+
+ /* Peri QSPI */
+ writel(cfg->mainqspiclk, &clock_manager_base->main_pll.mainqspiclk);
+
+ writel(cfg->perqspiclk, &clock_manager_base->per_pll.perqspiclk);
+
+ /* Peri pernandsdmmcclk */
+ writel(cfg->mainnandsdmmcclk,
+ &clock_manager_base->main_pll.mainnandsdmmcclk);
+
+ writel(cfg->pernandsdmmcclk,
+ &clock_manager_base->per_pll.pernandsdmmcclk);
+
+ /* Peri perbaseclk */
+ writel(cfg->perbaseclk, &clock_manager_base->per_pll.perbaseclk);
+
+ /* Peri s2fuser1clk */
+ writel(cfg->s2fuser1clk, &clock_manager_base->per_pll.s2fuser1clk);
+
+ /* 7 us must have elapsed before we can enable the VCO */
+ while (get_timer(start) < timeout)
+ ;
+
+ /* Enable vco */
+ /* main pll vco */
+ writel(cfg->main_vco_base | CLKMGR_MAINPLLGRP_VCO_EN,
+ &clock_manager_base->main_pll.vco);
+
+ /* periferal pll */
+ writel(cfg->peri_vco_base | CLKMGR_MAINPLLGRP_VCO_EN,
+ &clock_manager_base->per_pll.vco);
+
+ /* sdram pll vco */
+ writel(cfg->sdram_vco_base | CLKMGR_MAINPLLGRP_VCO_EN,
+ &clock_manager_base->sdr_pll.vco);
+
+ /* L3 MP and L3 SP */
+ writel(cfg->maindiv, &clock_manager_base->main_pll.maindiv);
+
+ writel(cfg->dbgdiv, &clock_manager_base->main_pll.dbgdiv);
+
+ writel(cfg->tracediv, &clock_manager_base->main_pll.tracediv);
+
+ /* L4 MP, L4 SP, can0, and can1 */
+ writel(cfg->perdiv, &clock_manager_base->per_pll.div);
+
+ writel(cfg->gpiodiv, &clock_manager_base->per_pll.gpiodiv);
+
+#define LOCKED_MASK \
+ (CLKMGR_INTER_SDRPLLLOCKED_MASK | \
+ CLKMGR_INTER_PERPLLLOCKED_MASK | \
+ CLKMGR_INTER_MAINPLLLOCKED_MASK)
+
+ cm_wait_for_lock(LOCKED_MASK);
+
+ /* write the sdram clock counters before toggling outreset all */
+ writel(cfg->ddrdqsclk & CLKMGR_SDRPLLGRP_DDRDQSCLK_CNT_MASK,
+ &clock_manager_base->sdr_pll.ddrdqsclk);
+
+ writel(cfg->ddr2xdqsclk & CLKMGR_SDRPLLGRP_DDR2XDQSCLK_CNT_MASK,
+ &clock_manager_base->sdr_pll.ddr2xdqsclk);
+
+ writel(cfg->ddrdqclk & CLKMGR_SDRPLLGRP_DDRDQCLK_CNT_MASK,
+ &clock_manager_base->sdr_pll.ddrdqclk);
+
+ writel(cfg->s2fuser2clk & CLKMGR_SDRPLLGRP_S2FUSER2CLK_CNT_MASK,
+ &clock_manager_base->sdr_pll.s2fuser2clk);
+
+ /*
+ * after locking, but before taking out of bypass
+ * assert/deassert outresetall
+ */
+ uint32_t mainvco = readl(&clock_manager_base->main_pll.vco);
+
+ /* assert main outresetall */
+ writel(mainvco | CLKMGR_MAINPLLGRP_VCO_OUTRESETALL_MASK,
+ &clock_manager_base->main_pll.vco);
+
+ uint32_t periphvco = readl(&clock_manager_base->per_pll.vco);
+
+ /* assert pheriph outresetall */
+ writel(periphvco | CLKMGR_PERPLLGRP_VCO_OUTRESETALL_MASK,
+ &clock_manager_base->per_pll.vco);
+
+ /* assert sdram outresetall */
+ writel(cfg->sdram_vco_base | CLKMGR_MAINPLLGRP_VCO_EN|
+ CLKMGR_SDRPLLGRP_VCO_OUTRESETALL,
+ &clock_manager_base->sdr_pll.vco);
+
+ /* deassert main outresetall */
+ writel(mainvco & ~CLKMGR_MAINPLLGRP_VCO_OUTRESETALL_MASK,
+ &clock_manager_base->main_pll.vco);
+
+ /* deassert pheriph outresetall */
+ writel(periphvco & ~CLKMGR_PERPLLGRP_VCO_OUTRESETALL_MASK,
+ &clock_manager_base->per_pll.vco);
+
+ /* deassert sdram outresetall */
+ writel(cfg->sdram_vco_base | CLKMGR_MAINPLLGRP_VCO_EN,
+ &clock_manager_base->sdr_pll.vco);
+
+ /*
+ * now that we've toggled outreset all, all the clocks
+ * are aligned nicely; so we can change any phase.
+ */
+ cm_write_with_phase(cfg->ddrdqsclk,
+ (uint32_t)&clock_manager_base->sdr_pll.ddrdqsclk,
+ CLKMGR_SDRPLLGRP_DDRDQSCLK_PHASE_MASK);
+
+ /* SDRAM DDR2XDQSCLK */
+ cm_write_with_phase(cfg->ddr2xdqsclk,
+ (uint32_t)&clock_manager_base->sdr_pll.ddr2xdqsclk,
+ CLKMGR_SDRPLLGRP_DDR2XDQSCLK_PHASE_MASK);
+
+ cm_write_with_phase(cfg->ddrdqclk,
+ (uint32_t)&clock_manager_base->sdr_pll.ddrdqclk,
+ CLKMGR_SDRPLLGRP_DDRDQCLK_PHASE_MASK);
+
+ cm_write_with_phase(cfg->s2fuser2clk,
+ (uint32_t)&clock_manager_base->sdr_pll.s2fuser2clk,
+ CLKMGR_SDRPLLGRP_S2FUSER2CLK_PHASE_MASK);
+
+ /* Take all three PLLs out of bypass when safe mode is cleared. */
+ cm_write_bypass(0);
+
+ /* clear safe mode */
+ cm_write_ctrl(readl(&clock_manager_base->ctrl) | CLKMGR_CTRL_SAFEMODE);
+
+ /*
+ * now that safe mode is clear with clocks gated
+ * it safe to change the source mux for the flashes the the L4_MAIN
+ */
+ writel(cfg->persrc, &clock_manager_base->per_pll.src);
+ writel(cfg->l4src, &clock_manager_base->main_pll.l4src);
+
+ /* Now ungate non-hw-managed clocks */
+ writel(~0, &clock_manager_base->main_pll.en);
+ writel(~0, &clock_manager_base->per_pll.en);
+ writel(~0, &clock_manager_base->sdr_pll.en);
+
+ /* Clear the loss of lock bits (write 1 to clear) */
+ writel(CLKMGR_INTER_SDRPLLLOST_MASK | CLKMGR_INTER_PERPLLLOST_MASK |
+ CLKMGR_INTER_MAINPLLLOST_MASK,
+ &clock_manager_base->inter);
+}
+
+static unsigned int cm_get_main_vco_clk_hz(void)
+{
+ uint32_t reg, clock;
+
+ /* get the main VCO clock */
+ reg = readl(&clock_manager_base->main_pll.vco);
+ clock = CONFIG_HPS_CLK_OSC1_HZ;
+ clock /= ((reg & CLKMGR_MAINPLLGRP_VCO_DENOM_MASK) >>
+ CLKMGR_MAINPLLGRP_VCO_DENOM_OFFSET) + 1;
+ clock *= ((reg & CLKMGR_MAINPLLGRP_VCO_NUMER_MASK) >>
+ CLKMGR_MAINPLLGRP_VCO_NUMER_OFFSET) + 1;
+
+ return clock;
+}
+
+static unsigned int cm_get_per_vco_clk_hz(void)
+{
+ uint32_t reg, clock = 0;
+
+ /* identify PER PLL clock source */
+ reg = readl(&clock_manager_base->per_pll.vco);
+ reg = (reg & CLKMGR_PERPLLGRP_VCO_SSRC_MASK) >>
+ CLKMGR_PERPLLGRP_VCO_SSRC_OFFSET;
+ if (reg == CLKMGR_VCO_SSRC_EOSC1)
+ clock = CONFIG_HPS_CLK_OSC1_HZ;
+ else if (reg == CLKMGR_VCO_SSRC_EOSC2)
+ clock = CONFIG_HPS_CLK_OSC2_HZ;
+ else if (reg == CLKMGR_VCO_SSRC_F2S)
+ clock = CONFIG_HPS_CLK_F2S_PER_REF_HZ;
+
+ /* get the PER VCO clock */
+ reg = readl(&clock_manager_base->per_pll.vco);
+ clock /= ((reg & CLKMGR_PERPLLGRP_VCO_DENOM_MASK) >>
+ CLKMGR_PERPLLGRP_VCO_DENOM_OFFSET) + 1;
+ clock *= ((reg & CLKMGR_PERPLLGRP_VCO_NUMER_MASK) >>
+ CLKMGR_PERPLLGRP_VCO_NUMER_OFFSET) + 1;
+
+ return clock;
+}
+
+unsigned long cm_get_mpu_clk_hz(void)
+{
+ uint32_t reg, clock;
+
+ clock = cm_get_main_vco_clk_hz();
+
+ /* get the MPU clock */
+ reg = readl(&clock_manager_base->altera.mpuclk);
+ clock /= (reg + 1);
+ reg = readl(&clock_manager_base->main_pll.mpuclk);
+ clock /= (reg + 1);
+ return clock;
+}
+
+unsigned long cm_get_sdram_clk_hz(void)
+{
+ uint32_t reg, clock = 0;
+
+ /* identify SDRAM PLL clock source */
+ reg = readl(&clock_manager_base->sdr_pll.vco);
+ reg = (reg & CLKMGR_SDRPLLGRP_VCO_SSRC_MASK) >>
+ CLKMGR_SDRPLLGRP_VCO_SSRC_OFFSET;
+ if (reg == CLKMGR_VCO_SSRC_EOSC1)
+ clock = CONFIG_HPS_CLK_OSC1_HZ;
+ else if (reg == CLKMGR_VCO_SSRC_EOSC2)
+ clock = CONFIG_HPS_CLK_OSC2_HZ;
+ else if (reg == CLKMGR_VCO_SSRC_F2S)
+ clock = CONFIG_HPS_CLK_F2S_SDR_REF_HZ;
+
+ /* get the SDRAM VCO clock */
+ reg = readl(&clock_manager_base->sdr_pll.vco);
+ clock /= ((reg & CLKMGR_SDRPLLGRP_VCO_DENOM_MASK) >>
+ CLKMGR_SDRPLLGRP_VCO_DENOM_OFFSET) + 1;
+ clock *= ((reg & CLKMGR_SDRPLLGRP_VCO_NUMER_MASK) >>
+ CLKMGR_SDRPLLGRP_VCO_NUMER_OFFSET) + 1;
+
+ /* get the SDRAM (DDR_DQS) clock */
+ reg = readl(&clock_manager_base->sdr_pll.ddrdqsclk);
+ reg = (reg & CLKMGR_SDRPLLGRP_DDRDQSCLK_CNT_MASK) >>
+ CLKMGR_SDRPLLGRP_DDRDQSCLK_CNT_OFFSET;
+ clock /= (reg + 1);
+
+ return clock;
+}
+
+unsigned int cm_get_l4_sp_clk_hz(void)
+{
+ uint32_t reg, clock = 0;
+
+ /* identify the source of L4 SP clock */
+ reg = readl(&clock_manager_base->main_pll.l4src);
+ reg = (reg & CLKMGR_MAINPLLGRP_L4SRC_L4SP) >>
+ CLKMGR_MAINPLLGRP_L4SRC_L4SP_OFFSET;
+
+ if (reg == CLKMGR_L4_SP_CLK_SRC_MAINPLL) {
+ clock = cm_get_main_vco_clk_hz();
+
+ /* get the clock prior L4 SP divider (main clk) */
+ reg = readl(&clock_manager_base->altera.mainclk);
+ clock /= (reg + 1);
+ reg = readl(&clock_manager_base->main_pll.mainclk);
+ clock /= (reg + 1);
+ } else if (reg == CLKMGR_L4_SP_CLK_SRC_PERPLL) {
+ clock = cm_get_per_vco_clk_hz();
+
+ /* get the clock prior L4 SP divider (periph_base_clk) */
+ reg = readl(&clock_manager_base->per_pll.perbaseclk);
+ clock /= (reg + 1);
+ }
+
+ /* get the L4 SP clock which supplied to UART */
+ reg = readl(&clock_manager_base->main_pll.maindiv);
+ reg = (reg & CLKMGR_MAINPLLGRP_MAINDIV_L4SPCLK_MASK) >>
+ CLKMGR_MAINPLLGRP_MAINDIV_L4SPCLK_OFFSET;
+ clock = clock / (1 << reg);
+
+ return clock;
+}
+
+unsigned int cm_get_mmc_controller_clk_hz(void)
+{
+ uint32_t reg, clock = 0;
+
+ /* identify the source of MMC clock */
+ reg = readl(&clock_manager_base->per_pll.src);
+ reg = (reg & CLKMGR_PERPLLGRP_SRC_SDMMC_MASK) >>
+ CLKMGR_PERPLLGRP_SRC_SDMMC_OFFSET;
+
+ if (reg == CLKMGR_SDMMC_CLK_SRC_F2S) {
+ clock = CONFIG_HPS_CLK_F2S_PER_REF_HZ;
+ } else if (reg == CLKMGR_SDMMC_CLK_SRC_MAIN) {
+ clock = cm_get_main_vco_clk_hz();
+
+ /* get the SDMMC clock */
+ reg = readl(&clock_manager_base->main_pll.mainnandsdmmcclk);
+ clock /= (reg + 1);
+ } else if (reg == CLKMGR_SDMMC_CLK_SRC_PER) {
+ clock = cm_get_per_vco_clk_hz();
+
+ /* get the SDMMC clock */
+ reg = readl(&clock_manager_base->per_pll.pernandsdmmcclk);
+ clock /= (reg + 1);
+ }
+
+ /* further divide by 4 as we have fixed divider at wrapper */
+ clock /= 4;
+ return clock;
+}
+
+unsigned int cm_get_qspi_controller_clk_hz(void)
+{
+ uint32_t reg, clock = 0;
+
+ /* identify the source of QSPI clock */
+ reg = readl(&clock_manager_base->per_pll.src);
+ reg = (reg & CLKMGR_PERPLLGRP_SRC_QSPI_MASK) >>
+ CLKMGR_PERPLLGRP_SRC_QSPI_OFFSET;
+
+ if (reg == CLKMGR_QSPI_CLK_SRC_F2S) {
+ clock = CONFIG_HPS_CLK_F2S_PER_REF_HZ;
+ } else if (reg == CLKMGR_QSPI_CLK_SRC_MAIN) {
+ clock = cm_get_main_vco_clk_hz();
+
+ /* get the qspi clock */
+ reg = readl(&clock_manager_base->main_pll.mainqspiclk);
+ clock /= (reg + 1);
+ } else if (reg == CLKMGR_QSPI_CLK_SRC_PER) {
+ clock = cm_get_per_vco_clk_hz();
+
+ /* get the qspi clock */
+ reg = readl(&clock_manager_base->per_pll.perqspiclk);
+ clock /= (reg + 1);
+ }
+
+ return clock;
+}
+
+unsigned int cm_get_spi_controller_clk_hz(void)
+{
+ uint32_t reg, clock = 0;
+
+ clock = cm_get_per_vco_clk_hz();
+
+ /* get the clock prior L4 SP divider (periph_base_clk) */
+ reg = readl(&clock_manager_base->per_pll.perbaseclk);
+ clock /= (reg + 1);
+
+ return clock;
+}
+
+static void cm_print_clock_quick_summary(void)
+{
+ printf("MPU %10ld kHz\n", cm_get_mpu_clk_hz() / 1000);
+ printf("DDR %10ld kHz\n", cm_get_sdram_clk_hz() / 1000);
+ printf("EOSC1 %8d kHz\n", CONFIG_HPS_CLK_OSC1_HZ / 1000);
+ printf("EOSC2 %8d kHz\n", CONFIG_HPS_CLK_OSC2_HZ / 1000);
+ printf("F2S_SDR_REF %8d kHz\n", CONFIG_HPS_CLK_F2S_SDR_REF_HZ / 1000);
+ printf("F2S_PER_REF %8d kHz\n", CONFIG_HPS_CLK_F2S_PER_REF_HZ / 1000);
+ printf("MMC %8d kHz\n", cm_get_mmc_controller_clk_hz() / 1000);
+ printf("QSPI %8d kHz\n", cm_get_qspi_controller_clk_hz() / 1000);
+ printf("UART %8d kHz\n", cm_get_l4_sp_clk_hz() / 1000);
+ printf("SPI %8d kHz\n", cm_get_spi_controller_clk_hz() / 1000);
+}
+
+int set_cpu_clk_info(void)
+{
+ /* Calculate the clock frequencies required for drivers */
+ cm_get_l4_sp_clk_hz();
+ cm_get_mmc_controller_clk_hz();
+
+ gd->bd->bi_arm_freq = cm_get_mpu_clk_hz() / 1000000;
+ gd->bd->bi_dsp_freq = 0;
+ gd->bd->bi_ddr_freq = cm_get_sdram_clk_hz() / 1000000;
+
+ return 0;
+}
+
+int do_showclocks(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ cm_print_clock_quick_summary();
+ return 0;
+}
+
+U_BOOT_CMD(
+ clocks, CONFIG_SYS_MAXARGS, 1, do_showclocks,
+ "display clocks",
+ ""
+);
diff --git a/arch/arm/mach-socfpga/fpga_manager.c b/arch/arm/mach-socfpga/fpga_manager.c
new file mode 100644
index 0000000..43fd2fe
--- /dev/null
+++ b/arch/arm/mach-socfpga/fpga_manager.c
@@ -0,0 +1,78 @@
+/*
+ * 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 <asm/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/arch/arm/mach-socfpga/freeze_controller.c b/arch/arm/mach-socfpga/freeze_controller.c
new file mode 100644
index 0000000..0be643c
--- /dev/null
+++ b/arch/arm/mach-socfpga/freeze_controller.c
@@ -0,0 +1,213 @@
+/*
+ * Copyright (C) 2013 Altera Corporation <www.altera.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/freeze_controller.h>
+#include <asm/arch/timer.h>
+#include <asm/errno.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static const struct socfpga_freeze_controller *freeze_controller_base =
+ (void *)(SOCFPGA_SYSMGR_ADDRESS + SYSMGR_FRZCTRL_ADDRESS);
+
+/*
+ * Default state from cold reset is FREEZE_ALL; the global
+ * flag is set to TRUE to indicate the IO banks are frozen
+ */
+static uint32_t frzctrl_channel_freeze[FREEZE_CHANNEL_NUM]
+ = { FREEZE_CTRL_FROZEN, FREEZE_CTRL_FROZEN,
+ FREEZE_CTRL_FROZEN, FREEZE_CTRL_FROZEN};
+
+/* Freeze HPS IOs */
+void sys_mgr_frzctrl_freeze_req(void)
+{
+ u32 ioctrl_reg_offset;
+ u32 reg_value;
+ u32 reg_cfg_mask;
+ u32 channel_id;
+
+ /* select software FSM */
+ writel(SYSMGR_FRZCTRL_SRC_VIO1_ENUM_SW, &freeze_controller_base->src);
+
+ /* Freeze channel 0 to 2 */
+ for (channel_id = 0; channel_id <= 2; channel_id++) {
+ ioctrl_reg_offset = (u32)(
+ &freeze_controller_base->vioctrl + channel_id);
+
+ /*
+ * Assert active low enrnsl, plniotri
+ * and niotri signals
+ */
+ reg_cfg_mask =
+ SYSMGR_FRZCTRL_VIOCTRL_SLEW_MASK
+ | SYSMGR_FRZCTRL_VIOCTRL_WKPULLUP_MASK
+ | SYSMGR_FRZCTRL_VIOCTRL_TRISTATE_MASK;
+ clrbits_le32(ioctrl_reg_offset, reg_cfg_mask);
+
+ /*
+ * Note: Delay for 20ns at min
+ * Assert active low bhniotri signal and de-assert
+ * active high csrdone
+ */
+ reg_cfg_mask
+ = SYSMGR_FRZCTRL_VIOCTRL_BUSHOLD_MASK
+ | SYSMGR_FRZCTRL_VIOCTRL_CFG_MASK;
+ clrbits_le32(ioctrl_reg_offset, reg_cfg_mask);
+
+ /* Set global flag to indicate channel is frozen */
+ frzctrl_channel_freeze[channel_id] = FREEZE_CTRL_FROZEN;
+ }
+
+ /* Freeze channel 3 */
+ /*
+ * Assert active low enrnsl, plniotri and
+ * niotri signals
+ */
+ reg_cfg_mask
+ = SYSMGR_FRZCTRL_HIOCTRL_SLEW_MASK
+ | SYSMGR_FRZCTRL_HIOCTRL_WKPULLUP_MASK
+ | SYSMGR_FRZCTRL_HIOCTRL_TRISTATE_MASK;
+ clrbits_le32(&freeze_controller_base->hioctrl, reg_cfg_mask);
+
+ /*
+ * assert active low bhniotri & nfrzdrv signals,
+ * de-assert active high csrdone and assert
+ * active high frzreg and nfrzdrv signals
+ */
+ reg_value = readl(&freeze_controller_base->hioctrl);
+ reg_cfg_mask
+ = SYSMGR_FRZCTRL_HIOCTRL_BUSHOLD_MASK
+ | SYSMGR_FRZCTRL_HIOCTRL_CFG_MASK;
+ reg_value
+ = (reg_value & ~reg_cfg_mask)
+ | SYSMGR_FRZCTRL_HIOCTRL_REGRST_MASK
+ | SYSMGR_FRZCTRL_HIOCTRL_OCTRST_MASK;
+ writel(reg_value, &freeze_controller_base->hioctrl);
+
+ /*
+ * assert active high reinit signal and de-assert
+ * active high pllbiasen signals
+ */
+ reg_value = readl(&freeze_controller_base->hioctrl);
+ reg_value
+ = (reg_value &
+ ~SYSMGR_FRZCTRL_HIOCTRL_OCT_CFGEN_CALSTART_MASK)
+ | SYSMGR_FRZCTRL_HIOCTRL_DLLRST_MASK;
+ writel(reg_value, &freeze_controller_base->hioctrl);
+
+ /* Set global flag to indicate channel is frozen */
+ frzctrl_channel_freeze[channel_id] = FREEZE_CTRL_FROZEN;
+}
+
+/* Unfreeze/Thaw HPS IOs */
+void sys_mgr_frzctrl_thaw_req(void)
+{
+ u32 ioctrl_reg_offset;
+ u32 reg_cfg_mask;
+ u32 reg_value;
+ u32 channel_id;
+
+ /* select software FSM */
+ writel(SYSMGR_FRZCTRL_SRC_VIO1_ENUM_SW, &freeze_controller_base->src);
+
+ /* Thaw channel 0 to 2 */
+ for (channel_id = 0; channel_id <= 2; channel_id++) {
+ ioctrl_reg_offset
+ = (u32)(&freeze_controller_base->vioctrl + channel_id);
+
+ /*
+ * Assert active low bhniotri signal and
+ * de-assert active high csrdone
+ */
+ reg_cfg_mask
+ = SYSMGR_FRZCTRL_VIOCTRL_BUSHOLD_MASK
+ | SYSMGR_FRZCTRL_VIOCTRL_CFG_MASK;
+ setbits_le32(ioctrl_reg_offset, reg_cfg_mask);
+
+ /*
+ * Note: Delay for 20ns at min
+ * de-assert active low plniotri and niotri signals
+ */
+ reg_cfg_mask
+ = SYSMGR_FRZCTRL_VIOCTRL_WKPULLUP_MASK
+ | SYSMGR_FRZCTRL_VIOCTRL_TRISTATE_MASK;
+ setbits_le32(ioctrl_reg_offset, reg_cfg_mask);
+
+ /*
+ * Note: Delay for 20ns at min
+ * de-assert active low enrnsl signal
+ */
+ setbits_le32(ioctrl_reg_offset,
+ SYSMGR_FRZCTRL_VIOCTRL_SLEW_MASK);
+
+ /* Set global flag to indicate channel is thawed */
+ frzctrl_channel_freeze[channel_id] = FREEZE_CTRL_THAWED;
+ }
+
+ /* Thaw channel 3 */
+ /* de-assert active high reinit signal */
+ clrbits_le32(&freeze_controller_base->hioctrl,
+ SYSMGR_FRZCTRL_HIOCTRL_DLLRST_MASK);
+
+ /*
+ * Note: Delay for 40ns at min
+ * assert active high pllbiasen signals
+ */
+ setbits_le32(&freeze_controller_base->hioctrl,
+ SYSMGR_FRZCTRL_HIOCTRL_OCT_CFGEN_CALSTART_MASK);
+
+ /*
+ * Delay 1000 intosc. intosc is based on eosc1
+ * Use worst case which is fatest eosc1=50MHz, delay required
+ * is 1/50MHz * 1000 = 20us
+ */
+ udelay(20);
+
+ /*
+ * de-assert active low bhniotri signals,
+ * assert active high csrdone and nfrzdrv signal
+ */
+ reg_value = readl(&freeze_controller_base->hioctrl);
+ reg_value = (reg_value
+ | SYSMGR_FRZCTRL_HIOCTRL_BUSHOLD_MASK
+ | SYSMGR_FRZCTRL_HIOCTRL_CFG_MASK)
+ & ~SYSMGR_FRZCTRL_HIOCTRL_OCTRST_MASK;
+ writel(reg_value, &freeze_controller_base->hioctrl);
+
+ /*
+ * Delay 33 intosc
+ * Use worst case which is fatest eosc1=50MHz, delay required
+ * is 1/50MHz * 33 = 660ns ~= 1us
+ */
+ udelay(1);
+
+ /* de-assert active low plniotri and niotri signals */
+ reg_cfg_mask
+ = SYSMGR_FRZCTRL_HIOCTRL_WKPULLUP_MASK
+ | SYSMGR_FRZCTRL_HIOCTRL_TRISTATE_MASK;
+
+ setbits_le32(&freeze_controller_base->hioctrl, reg_cfg_mask);
+
+ /*
+ * Note: Delay for 40ns at min
+ * de-assert active high frzreg signal
+ */
+ clrbits_le32(&freeze_controller_base->hioctrl,
+ SYSMGR_FRZCTRL_HIOCTRL_REGRST_MASK);
+
+ /*
+ * Note: Delay for 40ns at min
+ * de-assert active low enrnsl signal
+ */
+ setbits_le32(&freeze_controller_base->hioctrl,
+ SYSMGR_FRZCTRL_HIOCTRL_SLEW_MASK);
+
+ /* Set global flag to indicate channel is thawed */
+ frzctrl_channel_freeze[channel_id] = FREEZE_CTRL_THAWED;
+}
diff --git a/arch/arm/mach-socfpga/misc.c b/arch/arm/mach-socfpga/misc.c
new file mode 100644
index 0000000..0f8b4d0
--- /dev/null
+++ b/arch/arm/mach-socfpga/misc.c
@@ -0,0 +1,289 @@
+/*
+ * Copyright (C) 2012 Altera Corporation <www.altera.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <altera.h>
+#include <miiphy.h>
+#include <netdev.h>
+#include <watchdog.h>
+#include <asm/arch/reset_manager.h>
+#include <asm/arch/system_manager.h>
+#include <asm/arch/dwmmc.h>
+#include <asm/arch/nic301.h>
+#include <asm/arch/scu.h>
+#include <asm/pl310.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static struct pl310_regs *const pl310 =
+ (struct pl310_regs *)CONFIG_SYS_PL310_BASE;
+static struct socfpga_system_manager *sysmgr_regs =
+ (struct socfpga_system_manager *)SOCFPGA_SYSMGR_ADDRESS;
+static struct socfpga_reset_manager *reset_manager_base =
+ (struct socfpga_reset_manager *)SOCFPGA_RSTMGR_ADDRESS;
+static struct nic301_registers *nic301_regs =
+ (struct nic301_registers *)SOCFPGA_L3REGS_ADDRESS;
+static struct scu_registers *scu_regs =
+ (struct scu_registers *)SOCFPGA_MPUSCU_ADDRESS;
+
+int dram_init(void)
+{
+ gd->ram_size = get_ram_size((long *)PHYS_SDRAM_1, PHYS_SDRAM_1_SIZE);
+ return 0;
+}
+
+void enable_caches(void)
+{
+#ifndef CONFIG_SYS_ICACHE_OFF
+ icache_enable();
+#endif
+#ifndef CONFIG_SYS_DCACHE_OFF
+ dcache_enable();
+#endif
+}
+
+/*
+ * DesignWare Ethernet initialization
+ */
+#ifdef CONFIG_ETH_DESIGNWARE
+int cpu_eth_init(bd_t *bis)
+{
+#if CONFIG_EMAC_BASE == SOCFPGA_EMAC0_ADDRESS
+ const int physhift = SYSMGR_EMACGRP_CTRL_PHYSEL0_LSB;
+#elif CONFIG_EMAC_BASE == SOCFPGA_EMAC1_ADDRESS
+ const int physhift = SYSMGR_EMACGRP_CTRL_PHYSEL1_LSB;
+#else
+#error "Incorrect CONFIG_EMAC_BASE value!"
+#endif
+
+ /* Initialize EMAC. This needs to be done at least once per boot. */
+
+ /*
+ * Putting the EMAC controller to reset when configuring the PHY
+ * interface select at System Manager
+ */
+ socfpga_emac_reset(1);
+
+ /* Clearing emac0 PHY interface select to 0 */
+ clrbits_le32(&sysmgr_regs->emacgrp_ctrl,
+ SYSMGR_EMACGRP_CTRL_PHYSEL_MASK << physhift);
+
+ /* configure to PHY interface select choosed */
+ setbits_le32(&sysmgr_regs->emacgrp_ctrl,
+ SYSMGR_EMACGRP_CTRL_PHYSEL_ENUM_RGMII << physhift);
+
+ /* Release the EMAC controller from reset */
+ socfpga_emac_reset(0);
+
+ /* initialize and register the emac */
+ return designware_initialize(CONFIG_EMAC_BASE,
+ CONFIG_PHY_INTERFACE_MODE);
+}
+#endif
+
+#ifdef CONFIG_DWMMC
+/*
+ * Initializes MMC controllers.
+ * to override, implement board_mmc_init()
+ */
+int cpu_mmc_init(bd_t *bis)
+{
+ return socfpga_dwmmc_init(SOCFPGA_SDMMC_ADDRESS,
+ CONFIG_HPS_SDMMC_BUSWIDTH, 0);
+}
+#endif
+
+#if defined(CONFIG_DISPLAY_CPUINFO)
+/*
+ * Print CPU information
+ */
+int print_cpuinfo(void)
+{
+ puts("CPU: Altera SoCFPGA Platform\n");
+ return 0;
+}
+#endif
+
+#if defined(CONFIG_SYS_CONSOLE_IS_IN_ENV) && \
+defined(CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE)
+int overwrite_console(void)
+{
+ return 0;
+}
+#endif
+
+#ifdef CONFIG_FPGA
+/*
+ * FPGA programming support for SoC FPGA Cyclone V
+ */
+static Altera_desc altera_fpga[] = {
+ {
+ /* Family */
+ Altera_SoCFPGA,
+ /* Interface type */
+ fast_passive_parallel,
+ /* No limitation as additional data will be ignored */
+ -1,
+ /* No device function table */
+ NULL,
+ /* Base interface address specified in driver */
+ NULL,
+ /* No cookie implementation */
+ 0
+ },
+};
+
+/* add device descriptor to FPGA device table */
+static void socfpga_fpga_add(void)
+{
+ int i;
+ fpga_init();
+ for (i = 0; i < ARRAY_SIZE(altera_fpga); i++)
+ fpga_add(fpga_altera, &altera_fpga[i]);
+}
+#else
+static inline void socfpga_fpga_add(void) {}
+#endif
+
+int arch_cpu_init(void)
+{
+#ifdef CONFIG_HW_WATCHDOG
+ /*
+ * In case the watchdog is enabled, make sure to (re-)configure it
+ * so that the defined timeout is valid. Otherwise the SPL (Perloader)
+ * timeout value is still active which might too short for Linux
+ * booting.
+ */
+ hw_watchdog_init();
+#else
+ /*
+ * If the HW watchdog is NOT enabled, make sure it is not running,
+ * for example because it was enabled in the preloader. This might
+ * trigger a watchdog-triggered reboot of Linux kernel later.
+ */
+ socfpga_watchdog_reset();
+#endif
+
+ return 0;
+}
+
+/*
+ * Convert all NIC-301 AMBA slaves from secure to non-secure
+ */
+static void socfpga_nic301_slave_ns(void)
+{
+ writel(0x1, &nic301_regs->lwhps2fpgaregs);
+ writel(0x1, &nic301_regs->hps2fpgaregs);
+ writel(0x1, &nic301_regs->acp);
+ writel(0x1, &nic301_regs->rom);
+ writel(0x1, &nic301_regs->ocram);
+ writel(0x1, &nic301_regs->sdrdata);
+}
+
+static uint32_t iswgrp_handoff[8];
+
+int arch_early_init_r(void)
+{
+ int i;
+ for (i = 0; i < 8; i++) /* Cache initial SW setting regs */
+ iswgrp_handoff[i] = readl(&sysmgr_regs->iswgrp_handoff[i]);
+
+ socfpga_bridges_reset(1);
+ socfpga_nic301_slave_ns();
+
+ /*
+ * Private components security:
+ * U-Boot : configure private timer, global timer and cpu component
+ * access as non secure for kernel stage (as required by Linux)
+ */
+ setbits_le32(&scu_regs->sacr, 0xfff);
+
+ /* Configure the L2 controller to make SDRAM start at 0 */
+#ifdef CONFIG_SOCFPGA_VIRTUAL_TARGET
+ writel(0x2, &nic301_regs->remap);
+#else
+ writel(0x1, &nic301_regs->remap); /* remap.mpuzero */
+ writel(0x1, &pl310->pl310_addr_filter_start);
+#endif
+
+ /* Add device descriptor to FPGA device table */
+ socfpga_fpga_add();
+
+#ifdef CONFIG_DESIGNWARE_SPI
+ /* Get Designware SPI controller out of reset */
+ socfpga_spim_enable();
+#endif
+
+ return 0;
+}
+
+static void socfpga_sdram_apply_static_cfg(void)
+{
+ const uint32_t staticcfg = SOCFPGA_SDR_ADDRESS + 0x505c;
+ const uint32_t applymask = 0x8;
+ uint32_t val = readl(staticcfg) | applymask;
+
+ /*
+ * SDRAM staticcfg register specific:
+ * When applying the register setting, the CPU must not access
+ * SDRAM. Luckily for us, we can abuse i-cache here to help us
+ * circumvent the SDRAM access issue. The idea is to make sure
+ * that the code is in one full i-cache line by branching past
+ * it and back. Once it is in the i-cache, we execute the core
+ * of the code and apply the register settings.
+ *
+ * The code below uses 7 instructions, while the Cortex-A9 has
+ * 32-byte cachelines, thus the limit is 8 instructions total.
+ */
+ asm volatile(
+ ".align 5 \n"
+ " b 2f \n"
+ "1: str %0, [%1] \n"
+ " dsb \n"
+ " isb \n"
+ " b 3f \n"
+ "2: b 1b \n"
+ "3: nop \n"
+ : : "r"(val), "r"(staticcfg) : "memory", "cc");
+}
+
+int do_bridge(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ if (argc != 2)
+ return CMD_RET_USAGE;
+
+ argv++;
+
+ switch (*argv[0]) {
+ case 'e': /* Enable */
+ writel(iswgrp_handoff[2], &sysmgr_regs->fpgaintfgrp_module);
+ socfpga_sdram_apply_static_cfg();
+ writel(iswgrp_handoff[3], SOCFPGA_SDR_ADDRESS + 0x5080);
+ writel(iswgrp_handoff[0], &reset_manager_base->brg_mod_reset);
+ writel(iswgrp_handoff[1], &nic301_regs->remap);
+ break;
+ case 'd': /* Disable */
+ writel(0, &sysmgr_regs->fpgaintfgrp_module);
+ writel(0, SOCFPGA_SDR_ADDRESS + 0x5080);
+ socfpga_sdram_apply_static_cfg();
+ writel(0, &reset_manager_base->brg_mod_reset);
+ writel(1, &nic301_regs->remap);
+ break;
+ default:
+ return CMD_RET_USAGE;
+ }
+
+ return 0;
+}
+
+U_BOOT_CMD(
+ bridge, 2, 1, do_bridge,
+ "SoCFPGA HPS FPGA bridge control",
+ "enable - Enable HPS-to-FPGA, FPGA-to-HPS, LWHPS-to-FPGA bridges\n"
+ "bridge disable - Enable HPS-to-FPGA, FPGA-to-HPS, LWHPS-to-FPGA bridges\n"
+ ""
+);
diff --git a/arch/arm/mach-socfpga/reset_manager.c b/arch/arm/mach-socfpga/reset_manager.c
new file mode 100644
index 0000000..45b352b
--- /dev/null
+++ b/arch/arm/mach-socfpga/reset_manager.c
@@ -0,0 +1,139 @@
+/*
+ * Copyright (C) 2013 Altera Corporation <www.altera.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/reset_manager.h>
+#include <asm/arch/fpga_manager.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static const struct socfpga_reset_manager *reset_manager_base =
+ (void *)SOCFPGA_RSTMGR_ADDRESS;
+
+/* Toggle reset signal to watchdog (WDT is disabled after this operation!) */
+void socfpga_watchdog_reset(void)
+{
+ /* assert reset for watchdog */
+ setbits_le32(&reset_manager_base->per_mod_reset,
+ 1 << RSTMGR_PERMODRST_L4WD0_LSB);
+
+ /* deassert watchdog from reset (watchdog in not running state) */
+ clrbits_le32(&reset_manager_base->per_mod_reset,
+ 1 << RSTMGR_PERMODRST_L4WD0_LSB);
+}
+
+/*
+ * Write the reset manager register to cause reset
+ */
+void reset_cpu(ulong addr)
+{
+ /* request a warm reset */
+ writel((1 << RSTMGR_CTRL_SWWARMRSTREQ_LSB),
+ &reset_manager_base->ctrl);
+ /*
+ * infinite loop here as watchdog will trigger and reset
+ * the processor
+ */
+ while (1)
+ ;
+}
+
+/*
+ * Release peripherals from reset based on handoff
+ */
+void reset_deassert_peripherals_handoff(void)
+{
+ writel(0, &reset_manager_base->per_mod_reset);
+}
+
+#if defined(CONFIG_SOCFPGA_VIRTUAL_TARGET)
+void socfpga_bridges_reset(int enable)
+{
+ /* For SoCFPGA-VT, this is NOP. */
+}
+#else
+
+#define L3REGS_REMAP_LWHPS2FPGA_MASK 0x10
+#define L3REGS_REMAP_HPS2FPGA_MASK 0x08
+#define L3REGS_REMAP_OCRAM_MASK 0x01
+
+void socfpga_bridges_reset(int enable)
+{
+ const uint32_t l3mask = L3REGS_REMAP_LWHPS2FPGA_MASK |
+ L3REGS_REMAP_HPS2FPGA_MASK |
+ L3REGS_REMAP_OCRAM_MASK;
+
+ if (enable) {
+ /* brdmodrst */
+ writel(0xffffffff, &reset_manager_base->brg_mod_reset);
+ } else {
+ /* Check signal from FPGA. */
+ if (fpgamgr_poll_fpga_ready()) {
+ /* FPGA not ready. Wait for watchdog timeout. */
+ printf("%s: fpga not ready, hanging.\n", __func__);
+ hang();
+ }
+
+ /* brdmodrst */
+ writel(0, &reset_manager_base->brg_mod_reset);
+
+ /* Remap the bridges into memory map */
+ writel(l3mask, SOCFPGA_L3REGS_ADDRESS);
+ }
+}
+#endif
+
+/* Change the reset state for EMAC 0 and EMAC 1 */
+void socfpga_emac_reset(int enable)
+{
+ const void *reset = &reset_manager_base->per_mod_reset;
+
+ if (enable) {
+ setbits_le32(reset, 1 << RSTMGR_PERMODRST_EMAC0_LSB);
+ setbits_le32(reset, 1 << RSTMGR_PERMODRST_EMAC1_LSB);
+ } else {
+#if (CONFIG_EMAC_BASE == SOCFPGA_EMAC0_ADDRESS)
+ clrbits_le32(reset, 1 << RSTMGR_PERMODRST_EMAC0_LSB);
+#elif (CONFIG_EMAC_BASE == SOCFPGA_EMAC1_ADDRESS)
+ clrbits_le32(reset, 1 << RSTMGR_PERMODRST_EMAC1_LSB);
+#endif
+ }
+}
+
+/* SPI Master enable (its held in reset by the preloader) */
+void socfpga_spim_enable(void)
+{
+ const void *reset = &reset_manager_base->per_mod_reset;
+
+ clrbits_le32(reset, (1 << RSTMGR_PERMODRST_SPIM0_LSB) |
+ (1 << RSTMGR_PERMODRST_SPIM1_LSB));
+}
+
+/* Bring UART0 out of reset. */
+void socfpga_uart0_enable(void)
+{
+ const void *reset = &reset_manager_base->per_mod_reset;
+
+ clrbits_le32(reset, 1 << RSTMGR_PERMODRST_UART0_LSB);
+}
+
+/* Bring SDRAM controller out of reset. */
+void socfpga_sdram_enable(void)
+{
+ const void *reset = &reset_manager_base->per_mod_reset;
+
+ clrbits_le32(reset, 1 << RSTMGR_PERMODRST_SDR_LSB);
+}
+
+/* Bring OSC1 timer out of reset. */
+void socfpga_osc1timer_enable(void)
+{
+ const void *reset = &reset_manager_base->per_mod_reset;
+
+ clrbits_le32(reset, 1 << RSTMGR_PERMODRST_OSC1TIMER0_LSB);
+}
diff --git a/arch/arm/mach-socfpga/scan_manager.c b/arch/arm/mach-socfpga/scan_manager.c
new file mode 100644
index 0000000..a820b1b
--- /dev/null
+++ b/arch/arm/mach-socfpga/scan_manager.c
@@ -0,0 +1,209 @@
+/*
+ * Copyright (C) 2013 Altera Corporation <www.altera.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/freeze_controller.h>
+#include <asm/arch/scan_manager.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static const struct socfpga_scan_manager *scan_manager_base =
+ (void *)(SOCFPGA_SCANMGR_ADDRESS);
+static const struct socfpga_freeze_controller *freeze_controller_base =
+ (void *)(SOCFPGA_SYSMGR_ADDRESS + SYSMGR_FRZCTRL_ADDRESS);
+
+/*
+ * Function to check IO scan chain engine status and wait if the engine is
+ * is active. Poll the IO scan chain engine till maximum iteration reached.
+ */
+static inline uint32_t scan_chain_engine_is_idle(uint32_t max_iter)
+{
+ uint32_t scanmgr_status;
+
+ scanmgr_status = readl(&scan_manager_base->stat);
+
+ /* Poll the engine until the scan engine is inactive */
+ while (SCANMGR_STAT_ACTIVE_GET(scanmgr_status) ||
+ (SCANMGR_STAT_WFIFOCNT_GET(scanmgr_status) > 0)) {
+ max_iter--;
+ if (max_iter > 0)
+ scanmgr_status = readl(&scan_manager_base->stat);
+ else
+ return 0;
+ }
+ return 1;
+}
+
+/* Program HPS IO Scan Chain */
+uint32_t scan_mgr_io_scan_chain_prg(
+ uint32_t io_scan_chain_id,
+ uint32_t io_scan_chain_len_in_bits,
+ const uint32_t *iocsr_scan_chain)
+{
+ uint16_t tdi_tdo_header;
+ uint32_t io_program_iter;
+ uint32_t io_scan_chain_data_residual;
+ uint32_t residual;
+ uint32_t i;
+ uint32_t index = 0;
+
+ /*
+ * De-assert reinit if the IO scan chain is intended for HIO. In
+ * this, its the chain 3.
+ */
+ if (io_scan_chain_id == 3)
+ clrbits_le32(&freeze_controller_base->hioctrl,
+ SYSMGR_FRZCTRL_HIOCTRL_DLLRST_MASK);
+
+ /*
+ * Check if the scan chain engine is inactive and the
+ * WFIFO is empty before enabling the IO scan chain
+ */
+ if (!scan_chain_engine_is_idle(SCAN_MAX_DELAY))
+ return 1;
+
+ /*
+ * Enable IO Scan chain based on scan chain id
+ * Note: only one chain can be enabled at a time
+ */
+ setbits_le32(&scan_manager_base->en, 1 << io_scan_chain_id);
+
+ /*
+ * Calculate number of iteration needed for full 128-bit (4 x32-bits)
+ * bits shifting. Each TDI_TDO packet can shift in maximum 128-bits
+ */
+ io_program_iter = io_scan_chain_len_in_bits >>
+ IO_SCAN_CHAIN_128BIT_SHIFT;
+ io_scan_chain_data_residual = io_scan_chain_len_in_bits &
+ IO_SCAN_CHAIN_128BIT_MASK;
+
+ /* Construct TDI_TDO packet for 128-bit IO scan chain (2 bytes) */
+ tdi_tdo_header = TDI_TDO_HEADER_FIRST_BYTE |
+ (TDI_TDO_MAX_PAYLOAD << TDI_TDO_HEADER_SECOND_BYTE_SHIFT);
+
+ /* Program IO scan chain in 128-bit iteration */
+ for (i = 0; i < io_program_iter; i++) {
+ /* write TDI_TDO packet header to scan manager */
+ writel(tdi_tdo_header, &scan_manager_base->fifo_double_byte);
+
+ /* calculate array index. Multiply by 4 as write 4 x 32bits */
+ index = i * 4;
+
+ /* write 4 successive 32-bit IO scan chain data into WFIFO */
+ writel(iocsr_scan_chain[index],
+ &scan_manager_base->fifo_quad_byte);
+ writel(iocsr_scan_chain[index + 1],
+ &scan_manager_base->fifo_quad_byte);
+ writel(iocsr_scan_chain[index + 2],
+ &scan_manager_base->fifo_quad_byte);
+ writel(iocsr_scan_chain[index + 3],
+ &scan_manager_base->fifo_quad_byte);
+
+ /*
+ * Check if the scan chain engine has completed the
+ * IO scan chain data shifting
+ */
+ if (!scan_chain_engine_is_idle(SCAN_MAX_DELAY))
+ goto error;
+ }
+
+ /* Calculate array index for final TDI_TDO packet */
+ index = io_program_iter * 4;
+
+ /* Final TDI_TDO packet if any */
+ if (io_scan_chain_data_residual) {
+ /*
+ * Calculate number of quad bytes FIFO write
+ * needed for the final TDI_TDO packet
+ */
+ io_program_iter = io_scan_chain_data_residual >>
+ IO_SCAN_CHAIN_32BIT_SHIFT;
+
+ /*
+ * Construct TDI_TDO packet for remaining IO
+ * scan chain (2 bytes)
+ */
+ tdi_tdo_header = TDI_TDO_HEADER_FIRST_BYTE |
+ ((io_scan_chain_data_residual - 1) <<
+ TDI_TDO_HEADER_SECOND_BYTE_SHIFT);
+
+ /*
+ * Program the last part of IO scan chain write TDI_TDO packet
+ * header (2 bytes) to scan manager
+ */
+ writel(tdi_tdo_header, &scan_manager_base->fifo_double_byte);
+
+ for (i = 0; i < io_program_iter; i++) {
+ /*
+ * write remaining scan chain data into scan
+ * manager WFIFO with 4 bytes write
+ */
+ writel(iocsr_scan_chain[index + i],
+ &scan_manager_base->fifo_quad_byte);
+ }
+
+ index += io_program_iter;
+ residual = io_scan_chain_data_residual &
+ IO_SCAN_CHAIN_32BIT_MASK;
+
+ if (IO_SCAN_CHAIN_PAYLOAD_24BIT < residual) {
+ /*
+ * write the last 4B scan chain data
+ * into scan manager WFIFO
+ */
+ writel(iocsr_scan_chain[index],
+ &scan_manager_base->fifo_quad_byte);
+ } else {
+ /*
+ * write the remaining 1 - 3 bytes scan chain
+ * data into scan manager WFIFO byte by byte
+ * to prevent JTAG engine shifting unused data
+ * from the FIFO and mistaken the data as a
+ * valid command (even though unused bits are
+ * set to 0, but just to prevent hardware
+ * glitch)
+ */
+ for (i = 0; i < residual; i += 8) {
+ writel(((iocsr_scan_chain[index] >> i)
+ & IO_SCAN_CHAIN_BYTE_MASK),
+ &scan_manager_base->fifo_single_byte);
+ }
+ }
+
+ /*
+ * Check if the scan chain engine has completed the
+ * IO scan chain data shifting
+ */
+ if (!scan_chain_engine_is_idle(SCAN_MAX_DELAY))
+ goto error;
+ }
+
+ /* Disable IO Scan chain when configuration done*/
+ clrbits_le32(&scan_manager_base->en, 1 << io_scan_chain_id);
+ return 0;
+
+error:
+ /* Disable IO Scan chain when error detected */
+ clrbits_le32(&scan_manager_base->en, 1 << io_scan_chain_id);
+ return 1;
+}
+
+int scan_mgr_configure_iocsr(void)
+{
+ int status = 0;
+
+ /* configure the IOCSR through scan chain */
+ status |= scan_mgr_io_scan_chain_prg(0,
+ CONFIG_HPS_IOCSR_SCANCHAIN0_LENGTH, iocsr_scan_chain0_table);
+ status |= scan_mgr_io_scan_chain_prg(1,
+ CONFIG_HPS_IOCSR_SCANCHAIN1_LENGTH, iocsr_scan_chain1_table);
+ status |= scan_mgr_io_scan_chain_prg(2,
+ CONFIG_HPS_IOCSR_SCANCHAIN2_LENGTH, iocsr_scan_chain2_table);
+ status |= scan_mgr_io_scan_chain_prg(3,
+ CONFIG_HPS_IOCSR_SCANCHAIN3_LENGTH, iocsr_scan_chain3_table);
+ return status;
+}
diff --git a/arch/arm/mach-socfpga/spl.c b/arch/arm/mach-socfpga/spl.c
new file mode 100644
index 0000000..f994658
--- /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();
+ }
+}
diff --git a/arch/arm/mach-socfpga/system_manager.c b/arch/arm/mach-socfpga/system_manager.c
new file mode 100644
index 0000000..8126e0d
--- /dev/null
+++ b/arch/arm/mach-socfpga/system_manager.c
@@ -0,0 +1,77 @@
+/*
+ * Copyright (C) 2013 Altera Corporation <www.altera.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/system_manager.h>
+#include <asm/arch/fpga_manager.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static struct socfpga_system_manager *sysmgr_regs =
+ (struct socfpga_system_manager *)SOCFPGA_SYSMGR_ADDRESS;
+
+/*
+ * Populate the value for SYSMGR.FPGAINTF.MODULE based on pinmux setting.
+ * The value is not wrote to SYSMGR.FPGAINTF.MODULE but
+ * CONFIG_SYSMGR_ISWGRP_HANDOFF.
+ */
+static void populate_sysmgr_fpgaintf_module(void)
+{
+ uint32_t handoff_val = 0;
+
+ /* ISWGRP_HANDOFF_FPGAINTF */
+ writel(0, &sysmgr_regs->iswgrp_handoff[2]);
+
+ /* Enable the signal for those HPS peripherals that use FPGA. */
+ if (readl(&sysmgr_regs->nandusefpga) == SYSMGR_FPGAINTF_USEFPGA)
+ handoff_val |= SYSMGR_FPGAINTF_NAND;
+ if (readl(&sysmgr_regs->rgmii1usefpga) == SYSMGR_FPGAINTF_USEFPGA)
+ handoff_val |= SYSMGR_FPGAINTF_EMAC1;
+ if (readl(&sysmgr_regs->sdmmcusefpga) == SYSMGR_FPGAINTF_USEFPGA)
+ handoff_val |= SYSMGR_FPGAINTF_SDMMC;
+ if (readl(&sysmgr_regs->rgmii0usefpga) == SYSMGR_FPGAINTF_USEFPGA)
+ handoff_val |= SYSMGR_FPGAINTF_EMAC0;
+ if (readl(&sysmgr_regs->spim0usefpga) == SYSMGR_FPGAINTF_USEFPGA)
+ handoff_val |= SYSMGR_FPGAINTF_SPIM0;
+ if (readl(&sysmgr_regs->spim1usefpga) == SYSMGR_FPGAINTF_USEFPGA)
+ handoff_val |= SYSMGR_FPGAINTF_SPIM1;
+
+ /* populate (not writing) the value for SYSMGR.FPGAINTF.MODULE
+ based on pinmux setting */
+ setbits_le32(&sysmgr_regs->iswgrp_handoff[2], handoff_val);
+
+ handoff_val = readl(&sysmgr_regs->iswgrp_handoff[2]);
+ if (fpgamgr_test_fpga_ready()) {
+ /* Enable the required signals only */
+ writel(handoff_val, &sysmgr_regs->fpgaintfgrp_module);
+ }
+}
+
+/*
+ * Configure all the pin muxes
+ */
+void sysmgr_pinmux_init(void)
+{
+ uint32_t regs = (uint32_t)&sysmgr_regs->emacio[0];
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(sys_mgr_init_table); i++) {
+ writel(sys_mgr_init_table[i], regs);
+ regs += sizeof(regs);
+ }
+
+ populate_sysmgr_fpgaintf_module();
+}
+
+/*
+ * This bit allows the bootrom to configure the IOs after a warm reset.
+ */
+void sysmgr_enable_warmrstcfgio(void)
+{
+ setbits_le32(&sysmgr_regs->romcodegrp_ctrl,
+ SYSMGR_ROMCODEGRP_CTRL_WARMRSTCFGIO);
+}
diff --git a/arch/arm/mach-socfpga/timer.c b/arch/arm/mach-socfpga/timer.c
new file mode 100644
index 0000000..253cde3
--- /dev/null
+++ b/arch/arm/mach-socfpga/timer.c
@@ -0,0 +1,24 @@
+/*
+ * Copyright (C) 2012 Altera Corporation <www.altera.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/timer.h>
+
+#define TIMER_LOAD_VAL 0xFFFFFFFF
+
+static const struct socfpga_timer *timer_base = (void *)CONFIG_SYS_TIMERBASE;
+
+/*
+ * Timer initialization
+ */
+int timer_init(void)
+{
+ writel(TIMER_LOAD_VAL, &timer_base->load_val);
+ writel(TIMER_LOAD_VAL, &timer_base->curr_val);
+ writel(readl(&timer_base->ctrl) | 0x3, &timer_base->ctrl);
+ return 0;
+}
diff --git a/arch/arm/mach-socfpga/u-boot-spl.lds b/arch/arm/mach-socfpga/u-boot-spl.lds
new file mode 100644
index 0000000..569fa41
--- /dev/null
+++ b/arch/arm/mach-socfpga/u-boot-spl.lds
@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2012 Altera Corporation <www.altera.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+MEMORY { .sdram : ORIGIN = (0), LENGTH = (0xffffffff) }
+
+OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
+OUTPUT_ARCH(arm)
+ENTRY(_start)
+SECTIONS
+{
+ . = 0x00000000;
+
+ . = ALIGN(4);
+ .text :
+ {
+ *(.vectors)
+ arch/arm/cpu/armv7/start.o (.text*)
+ *(.text*)
+ } >.sdram
+
+ . = ALIGN(4);
+ .rodata : { *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) } >.sdram
+
+ . = ALIGN(4);
+ .data : { *(SORT_BY_ALIGNMENT(.data*)) } >.sdram
+
+ . = ALIGN(4);
+ __image_copy_end = .;
+
+ .end :
+ {
+ *(.__end)
+ }
+
+ .bss : {
+ . = ALIGN(4);
+ __bss_start = .;
+ *(.bss*)
+ . = ALIGN(4);
+ __bss_end = .;
+ } >.sdram
+}