arch/arm/cpu/armv7/ls102xa/fdt.c

   1 /*
   2  * Copyright 2014 Freescale Semiconductor, Inc.
   3  *
   4  * SPDX-License-Identifier:     GPL-2.0+
   5  */
   6
   7 #include <common.h>
   8 #include <libfdt.h>
   9 #include <fdt_support.h>
  10 #include <asm/io.h>
  11 #include <asm/processor.h>
  12 #include <asm/arch/clock.h>
  13 #include <linux/ctype.h>
  14 #ifdef CONFIG_FSL_ESDHC
  15 #include <fsl_esdhc.h>
  16 #endif
  17 #include <tsec.h>
  18 #include <asm/arch/immap_ls102xa.h>
  19 #include <fsl_sec.h>
  20
  21 DECLARE_GLOBAL_DATA_PTR;
  22
  23 void ft_fixup_enet_phy_connect_type(void *fdt)
  24 {
  25         struct eth_device *dev;
  26         struct tsec_private *priv;
  27         const char *enet_path, *phy_path;
  28         char enet[16];
  29         char phy[16];
  30         int phy_node;
  31         int i = 0;
  32         int enet_id = 0;
  33         uint32_t ph;
  34
  35         while ((dev = eth_get_dev_by_index(i++)) != NULL) {
  36                 if (strstr(dev->name, "eTSEC1"))
  37                         enet_id = 0;
  38                 else if (strstr(dev->name, "eTSEC2"))
  39                         enet_id = 1;
  40                 else if (strstr(dev->name, "eTSEC3"))
  41                         enet_id = 2;
  42                 else
  43                         continue;
  44
  45                 priv = dev->priv;
  46                 if (priv->flags & TSEC_SGMII)
  47                         continue;
  48
  49                 sprintf(enet, "ethernet%d", enet_id);
  50                 enet_path = fdt_get_alias(fdt, enet);
  51                 if (!enet_path)
  52                         continue;
  53
  54                 sprintf(phy, "enet%d_rgmii_phy", enet_id);
  55                 phy_path = fdt_get_alias(fdt, phy);
  56                 if (!phy_path)
  57                         continue;
  58
  59                 phy_node = fdt_path_offset(fdt, phy_path);
  60                 if (phy_node < 0)
  61                         continue;
  62
  63                 ph = fdt_create_phandle(fdt, phy_node);
  64                 if (ph)
  65                         do_fixup_by_path_u32(fdt, enet_path,
  66                                              "phy-handle", ph, 1);
  67
  68                 do_fixup_by_path(fdt, enet_path, "phy-connection-type",
  69                                  phy_string_for_interface(
  70                                  PHY_INTERFACE_MODE_RGMII_ID),
  71                                  sizeof(phy_string_for_interface(
  72                                  PHY_INTERFACE_MODE_RGMII_ID)),
  73                                  1);
  74         }
  75 }
  76
  77 void ft_cpu_setup(void *blob, bd_t *bd)
  78 {
  79         int off;
  80         int val;
  81         const char *sysclk_path;
  82         struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
  83         unsigned int svr;
  84         svr = in_be32(&gur->svr);
  85
  86         unsigned long busclk = get_bus_freq(0);
  87
  88         /* delete crypto node if not on an E-processor */
  89         if (!IS_E_PROCESSOR(svr))
  90                 fdt_fixup_crypto_node(blob, 0);
  91 #if CONFIG_SYS_FSL_SEC_COMPAT >= 4
  92         else {
  93                 ccsr_sec_t __iomem *sec;
  94
  95                 sec = (void __iomem *)CONFIG_SYS_FSL_SEC_ADDR;
  96                 fdt_fixup_crypto_node(blob, sec_in32(&sec->secvid_ms));
  97         }
  98 #endif
  99
 100         fdt_fixup_ethernet(blob);
 101
 102         off = fdt_node_offset_by_prop_value(blob, -1, "device_type", "cpu", 4);
 103         while (off != -FDT_ERR_NOTFOUND) {
 104                 val = gd->cpu_clk;
 105                 fdt_setprop(blob, off, "clock-frequency", &val, 4);
 106                 off = fdt_node_offset_by_prop_value(blob, off,
 107                                                     "device_type", "cpu", 4);
 108         }
 109
 110         do_fixup_by_prop_u32(blob, "device_type", "soc",
 111                              4, "bus-frequency", busclk, 1);
 112
 113         ft_fixup_enet_phy_connect_type(blob);
 114
 115 #ifdef CONFIG_SYS_NS16550
 116         do_fixup_by_compat_u32(blob, "fsl,16550-FIFO64",
 117                                "clock-frequency", CONFIG_SYS_NS16550_CLK, 1);
 118 #endif
 119
 120         sysclk_path = fdt_get_alias(blob, "sysclk");
 121         if (sysclk_path)
 122                 do_fixup_by_path_u32(blob, sysclk_path, "clock-frequency",
 123                                      CONFIG_SYS_CLK_FREQ, 1);
 124         do_fixup_by_compat_u32(blob, "fsl,qoriq-sysclk-2.0",
 125                                "clock-frequency", CONFIG_SYS_CLK_FREQ, 1);
 126
 127 #if defined(CONFIG_FSL_ESDHC)
 128         fdt_fixup_esdhc(blob, bd);
 129 #endif
 130
 131         /*
 132          * platform bus clock = system bus clock/2
 133          * Here busclk = system bus clock
 134          * We are using the platform bus clock as 1588 Timer reference
 135          * clock source select
 136          */
 137         do_fixup_by_compat_u32(blob, "fsl, gianfar-ptp-timer",
 138                                "timer-frequency", busclk / 2, 1);
 139
 140         /*
 141          * clock-freq should change to clock-frequency and
 142          * flexcan-v1.0 should change to p1010-flexcan respectively
 143          * in the future.
 144          */
 145         do_fixup_by_compat_u32(blob, "fsl, flexcan-v1.0",
 146                                "clock_freq", busclk / 2, 1);
 147
 148         do_fixup_by_compat_u32(blob, "fsl, flexcan-v1.0",
 149                                "clock-frequency", busclk / 2, 1);
 150
 151         do_fixup_by_compat_u32(blob, "fsl, ls1021a-flexcan",
 152                                "clock-frequency", busclk / 2, 1);
 153 }