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