ddr: altera: stratix10: Add DDR support for Stratix10 SoC

[u-boot] / arch / arm / mach-socfpga / misc.c

diff --git a/arch/arm/mach-socfpga/misc.c b/arch/arm/mach-socfpga/misc.c
index 00eff9027505c3dbfa65df9e7b7ce8996cd9b78c..6f71e2096b75930557918bce9ba1dba2b55cfd5c 100644 (file)
--- a/arch/arm/mach-socfpga/misc.c
+++ b/arch/arm/mach-socfpga/misc.c
@@ -1,14 +1,13 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  *  Copyright (C) 2012-2017 Altera Corporation <www.altera.com>
- *
- * SPDX-License-Identifier:    GPL-2.0+
  */
 
 #include <common.h>
 #include <asm/io.h>
 #include <errno.h>
 #include <fdtdec.h>
-#include <libfdt.h>
+#include <linux/libfdt.h>
 #include <altera.h>
 #include <miiphy.h>
 #include <netdev.h>
@@ -23,8 +22,10 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
+#ifdef CONFIG_SYS_L2_PL310
 static const struct pl310_regs *const pl310 =
        (struct pl310_regs *)CONFIG_SYS_PL310_BASE;
+#endif
 
 struct bsel bsel_str[] = {
        { "rsvd", "Reserved", },
@@ -53,6 +54,7 @@ void enable_caches(void)
 #endif
 }
 
+#ifdef CONFIG_SYS_L2_PL310
 void v7_outer_cache_enable(void)
 {
        /* Disable the L2 cache */
@@ -73,6 +75,7 @@ void v7_outer_cache_disable(void)
        /* Disable the L2 cache */
        clrbits_le32(&pl310->pl310_ctrl, L2X0_CTRL_EN);
 }
+#endif
 
 #if defined(CONFIG_SYS_CONSOLE_IS_IN_ENV) && \
 defined(CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE)
@@ -136,3 +139,99 @@ int arch_cpu_init(void)
 
        return 0;
 }
+
+#ifdef CONFIG_ETH_DESIGNWARE
+static int dwmac_phymode_to_modereg(const char *phymode, u32 *modereg)
+{
+       if (!phymode)
+               return -EINVAL;
+
+       if (!strcmp(phymode, "mii") || !strcmp(phymode, "gmii")) {
+               *modereg = SYSMGR_EMACGRP_CTRL_PHYSEL_ENUM_GMII_MII;
+               return 0;
+       }
+
+       if (!strcmp(phymode, "rgmii")) {
+               *modereg = SYSMGR_EMACGRP_CTRL_PHYSEL_ENUM_RGMII;
+               return 0;
+       }
+
+       if (!strcmp(phymode, "rmii")) {
+               *modereg = SYSMGR_EMACGRP_CTRL_PHYSEL_ENUM_RMII;
+               return 0;
+       }
+
+       return -EINVAL;
+}
+
+int socfpga_eth_reset_common(void (*resetfn)(const u8 of_reset_id,
+                                            const u8 phymode))
+{
+       const void *fdt = gd->fdt_blob;
+       struct fdtdec_phandle_args args;
+       const char *phy_mode;
+       u32 phy_modereg;
+       int nodes[2];   /* Max. two GMACs */
+       int ret, count;
+       int i, node;
+
+       count = fdtdec_find_aliases_for_id(fdt, "ethernet",
+                                          COMPAT_ALTERA_SOCFPGA_DWMAC,
+                                          nodes, ARRAY_SIZE(nodes));
+       for (i = 0; i < count; i++) {
+               node = nodes[i];
+               if (node <= 0)
+                       continue;
+
+               ret = fdtdec_parse_phandle_with_args(fdt, node, "resets",
+                                                    "#reset-cells", 1, 0,
+                                                    &args);
+               if (ret || (args.args_count != 1)) {
+                       debug("GMAC%i: Failed to parse DT 'resets'!\n", i);
+                       continue;
+               }
+
+               phy_mode = fdt_getprop(fdt, node, "phy-mode", NULL);
+               ret = dwmac_phymode_to_modereg(phy_mode, &phy_modereg);
+               if (ret) {
+                       debug("GMAC%i: Failed to parse DT 'phy-mode'!\n", i);
+                       continue;
+               }
+
+               resetfn(args.args[0], phy_modereg);
+       }
+
+       return 0;
+}
+#endif
+
+#ifndef CONFIG_SPL_BUILD
+static 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 */
+               do_bridge_reset(1);
+               break;
+       case 'd':       /* Disable */
+               do_bridge_reset(0);
+               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"
+          ""
+);
+
+#endif