board/phytec/pcl063/pcl063.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright (C) 2018 Collabora Ltd.
   4  *
   5  * Based on board/ccv/xpress/xpress.c:
   6  * Copyright (C) 2015-2016 Stefan Roese <sr@denx.de>
   7  */
   8
   9 #include <init.h>
  10 #include <asm/arch/clock.h>
  11 #include <asm/arch/crm_regs.h>
  12 #include <asm/arch/mx6-pins.h>
  13 #include <asm/arch/sys_proto.h>
  14 #include <asm/global_data.h>
  15 #include <asm/mach-imx/iomux-v3.h>
  16 #include <asm/mach-imx/mxc_i2c.h>
  17 #include <fsl_esdhc_imx.h>
  18 #include <linux/bitops.h>
  19 #include <miiphy.h>
  20 #include <netdev.h>
  21 #include <usb.h>
  22 #include <usb/ehci-ci.h>
  23
  24 DECLARE_GLOBAL_DATA_PTR;
  25
  26 int dram_init(void)
  27 {
  28         gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE);
  29
  30         return 0;
  31 }
  32
  33 #define UART_PAD_CTRL  (PAD_CTL_PKE         | PAD_CTL_PUE       | \
  34                         PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
  35                         PAD_CTL_DSE_40ohm   | PAD_CTL_SRE_FAST  | \
  36                         PAD_CTL_HYS)
  37
  38 static iomux_v3_cfg_t const uart1_pads[] = {
  39         MX6_PAD_UART1_TX_DATA__UART1_DCE_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
  40         MX6_PAD_UART1_RX_DATA__UART1_DCE_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
  41 };
  42
  43 static iomux_v3_cfg_t const uart5_pads[] = {
  44         MX6_PAD_UART5_TX_DATA__UART5_DCE_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
  45         MX6_PAD_UART5_RX_DATA__UART5_DCE_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
  46         MX6_PAD_GPIO1_IO09__UART5_DCE_CTS | MUX_PAD_CTRL(UART_PAD_CTRL),
  47         MX6_PAD_GPIO1_IO08__UART5_DCE_RTS | MUX_PAD_CTRL(UART_PAD_CTRL),
  48 };
  49
  50 static void setup_iomux_uart(void)
  51 {
  52         imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
  53         imx_iomux_v3_setup_multiple_pads(uart5_pads, ARRAY_SIZE(uart5_pads));
  54 }
  55
  56 #ifdef CONFIG_NAND_MXS
  57
  58 #define NAND_PAD_CTRL (PAD_CTL_DSE_48ohm | PAD_CTL_SRE_SLOW | PAD_CTL_HYS)
  59
  60 #define NAND_PAD_READY0_CTRL (PAD_CTL_DSE_48ohm | PAD_CTL_PUS_22K_UP)
  61
  62 #define NANDREADYPC MUX_PAD_CTRL(NAND_PAD_READY0_CTRL)
  63
  64 static iomux_v3_cfg_t const gpmi_pads[] = {
  65         MX6_PAD_NAND_DATA00__RAWNAND_DATA00     | MUX_PAD_CTRL(NAND_PAD_CTRL),
  66         MX6_PAD_NAND_DATA01__RAWNAND_DATA01     | MUX_PAD_CTRL(NAND_PAD_CTRL),
  67         MX6_PAD_NAND_DATA02__RAWNAND_DATA02     | MUX_PAD_CTRL(NAND_PAD_CTRL),
  68         MX6_PAD_NAND_DATA03__RAWNAND_DATA03     | MUX_PAD_CTRL(NAND_PAD_CTRL),
  69         MX6_PAD_NAND_DATA04__RAWNAND_DATA04     | MUX_PAD_CTRL(NAND_PAD_CTRL),
  70         MX6_PAD_NAND_DATA05__RAWNAND_DATA05     | MUX_PAD_CTRL(NAND_PAD_CTRL),
  71         MX6_PAD_NAND_DATA06__RAWNAND_DATA06     | MUX_PAD_CTRL(NAND_PAD_CTRL),
  72         MX6_PAD_NAND_DATA07__RAWNAND_DATA07     | MUX_PAD_CTRL(NAND_PAD_CTRL),
  73         MX6_PAD_NAND_CLE__RAWNAND_CLE           | MUX_PAD_CTRL(NAND_PAD_CTRL),
  74         MX6_PAD_NAND_ALE__RAWNAND_ALE           | MUX_PAD_CTRL(NAND_PAD_CTRL),
  75         MX6_PAD_NAND_RE_B__RAWNAND_RE_B         | MUX_PAD_CTRL(NAND_PAD_CTRL),
  76         MX6_PAD_NAND_WE_B__RAWNAND_WE_B         | MUX_PAD_CTRL(NAND_PAD_CTRL),
  77         MX6_PAD_NAND_CE0_B__RAWNAND_CE0_B       | MUX_PAD_CTRL(NAND_PAD_CTRL),
  78         MX6_PAD_NAND_READY_B__RAWNAND_READY_B   | NANDREADYPC,
  79 };
  80
  81 static void setup_gpmi_nand(void)
  82 {
  83         imx_iomux_v3_setup_multiple_pads(gpmi_pads, ARRAY_SIZE(gpmi_pads));
  84
  85         setup_gpmi_io_clk((3 << MXC_CCM_CSCDR1_BCH_PODF_OFFSET) |
  86                           (3 << MXC_CCM_CSCDR1_GPMI_PODF_OFFSET));
  87 }
  88
  89 #endif /* CONFIG_NAND_MXS */
  90
  91 #ifdef CONFIG_FEC_MXC
  92
  93 #define ENET_CLK_PAD_CTRL (PAD_CTL_DSE_40ohm   | PAD_CTL_SRE_FAST)
  94
  95 #define ENET_PAD_CTRL     (PAD_CTL_PUS_100K_UP | PAD_CTL_PUE       | \
  96                            PAD_CTL_SPEED_HIGH  | PAD_CTL_DSE_48ohm | \
  97                            PAD_CTL_SRE_FAST)
  98
  99 #define MDIO_PAD_CTRL     (PAD_CTL_PUS_100K_UP | PAD_CTL_PUE      | \
 100                            PAD_CTL_DSE_48ohm   | PAD_CTL_SRE_FAST | \
 101                            PAD_CTL_ODE)
 102
 103 static iomux_v3_cfg_t const fec1_pads[] = {
 104         MX6_PAD_GPIO1_IO06__ENET1_MDIO | MUX_PAD_CTRL(MDIO_PAD_CTRL),
 105         MX6_PAD_GPIO1_IO07__ENET1_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL),
 106         MX6_PAD_ENET1_TX_DATA0__ENET1_TDATA00 | MUX_PAD_CTRL(ENET_PAD_CTRL),
 107         MX6_PAD_ENET1_TX_DATA1__ENET1_TDATA01 | MUX_PAD_CTRL(ENET_PAD_CTRL),
 108         MX6_PAD_ENET1_TX_EN__ENET1_TX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL),
 109         MX6_PAD_ENET1_TX_CLK__ENET1_REF_CLK1 | MUX_PAD_CTRL(ENET_CLK_PAD_CTRL),
 110         MX6_PAD_ENET1_RX_DATA0__ENET1_RDATA00 | MUX_PAD_CTRL(ENET_PAD_CTRL),
 111         MX6_PAD_ENET1_RX_DATA1__ENET1_RDATA01 | MUX_PAD_CTRL(ENET_PAD_CTRL),
 112         MX6_PAD_ENET1_RX_ER__ENET1_RX_ER | MUX_PAD_CTRL(ENET_PAD_CTRL),
 113         MX6_PAD_ENET1_RX_EN__ENET1_RX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL),
 114 };
 115
 116 static iomux_v3_cfg_t const fec2_pads[] = {
 117         MX6_PAD_ENET2_TX_DATA0__ENET2_TDATA00 | MUX_PAD_CTRL(ENET_PAD_CTRL),
 118         MX6_PAD_ENET2_TX_DATA1__ENET2_TDATA01 | MUX_PAD_CTRL(ENET_PAD_CTRL),
 119         MX6_PAD_ENET2_TX_EN__ENET2_TX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL),
 120         MX6_PAD_ENET2_TX_CLK__ENET2_REF_CLK2 | MUX_PAD_CTRL(ENET_CLK_PAD_CTRL),
 121         MX6_PAD_ENET2_RX_DATA0__ENET2_RDATA00 | MUX_PAD_CTRL(ENET_PAD_CTRL),
 122         MX6_PAD_ENET2_RX_DATA1__ENET2_RDATA01 | MUX_PAD_CTRL(ENET_PAD_CTRL),
 123         MX6_PAD_ENET2_RX_ER__ENET2_RX_ER | MUX_PAD_CTRL(ENET_PAD_CTRL),
 124         MX6_PAD_ENET2_RX_EN__ENET2_RX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL),
 125 };
 126
 127 static void setup_iomux_fec(void)
 128 {
 129         imx_iomux_v3_setup_multiple_pads(fec1_pads, ARRAY_SIZE(fec1_pads));
 130         imx_iomux_v3_setup_multiple_pads(fec2_pads, ARRAY_SIZE(fec2_pads));
 131 }
 132
 133 static int setup_fec(void)
 134 {
 135         struct iomuxc *const iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR;
 136         int ret;
 137
 138         /*
 139          * Use 50M anatop loopback REF_CLK1 for ENET1,
 140          * clear gpr1[13], set gpr1[17].
 141          */
 142         clrsetbits_le32(&iomuxc_regs->gpr[1], IOMUX_GPR1_FEC1_MASK,
 143                         IOMUX_GPR1_FEC1_CLOCK_MUX1_SEL_MASK);
 144
 145         ret = enable_fec_anatop_clock(0, ENET_50MHZ);
 146         if (ret)
 147                 return ret;
 148
 149         /*
 150          * Use 50M anatop loopback REF_CLK2 for ENET2,
 151          * clear gpr1[14], set gpr1[18].
 152          */
 153         clrsetbits_le32(&iomuxc_regs->gpr[1], IOMUX_GPR1_FEC2_MASK,
 154                         IOMUX_GPR1_FEC2_CLOCK_MUX1_SEL_MASK);
 155
 156         ret = enable_fec_anatop_clock(1, ENET_50MHZ);
 157         if (ret)
 158                 return ret;
 159
 160         enable_enet_clk(1);
 161
 162         return 0;
 163 }
 164
 165 int board_phy_config(struct phy_device *phydev)
 166 {
 167         /*
 168          * Defaults + Enable status LEDs (LED1: Activity, LED0: Link) & select
 169          * 50 MHz RMII clock mode.
 170          */
 171         phy_write(phydev, MDIO_DEVAD_NONE, 0x1f, 0x8190);
 172
 173         if (phydev->drv->config)
 174                 phydev->drv->config(phydev);
 175
 176         return 0;
 177 }
 178 #endif /* CONFIG_FEC_MXC */
 179
 180 int board_early_init_f(void)
 181 {
 182         setup_iomux_uart();
 183 #ifdef CONFIG_FEC_MXC
 184         setup_iomux_fec();
 185 #endif
 186
 187         return 0;
 188 }
 189
 190 int board_init(void)
 191 {
 192         /* Address of boot parameters */
 193         gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
 194
 195 #ifdef CONFIG_NAND_MXS
 196         setup_gpmi_nand();
 197 #endif
 198
 199 #ifdef CONFIG_FEC_MXC
 200         setup_fec();
 201 #endif
 202         return 0;
 203 }
 204
 205 int checkboard(void)
 206 {
 207         u32 cpurev = get_cpu_rev();
 208
 209         printf("Board: PHYTEC phyCORE-i.MX%s\n",
 210               get_imx_type((cpurev & 0xFF000) >> 12));
 211
 212         return 0;
 213 }