#include <common.h>
#include <asm/io.h>
+#include <altera.h>
#include <miiphy.h>
#include <netdev.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_DESIGNWARE_ETH
+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");
+ puts("CPU: Altera SoCFPGA Platform\n");
return 0;
}
#endif
}
#endif
-int misc_init_r(void)
+#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)
{
+ /*
+ * 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.
+ */
+#ifndef CONFIG_HW_WATCHDOG
+ socfpga_watchdog_reset();
+#endif
return 0;
}
-
/*
- * DesignWare Ethernet initialization
+ * Convert all NIC-301 AMBA slaves from secure to non-secure
*/
-int cpu_eth_init(bd_t *bis)
+static void socfpga_nic301_slave_ns(void)
{
-#if !defined(CONFIG_SOCFPGA_VIRTUAL_TARGET) && !defined(CONFIG_SPL_BUILD)
- /* initialize and register the emac */
- return designware_initialize(CONFIG_EMAC_BASE,
- CONFIG_PHY_INTERFACE_MODE);
+ 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
- return 0;
+ 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();
+ 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"
+ ""
+);
projects / karo-tx-uboot.git / blobdiff