board/ge/mx53ppd/mx53ppd.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright 2017 General Electric Company
   4  *
   5  * Based on board/freescale/mx53loco/mx53loco.c:
   6  *
   7  * Copyright (C) 2011 Freescale Semiconductor, Inc.
   8  * Jason Liu <r64343@freescale.com>
   9  */
  10
  11 #include <common.h>
  12 #include <asm/io.h>
  13 #include <asm/arch/imx-regs.h>
  14 #include <asm/arch/sys_proto.h>
  15 #include <asm/arch/crm_regs.h>
  16 #include <asm/arch/clock.h>
  17 #include <asm/arch/iomux-mx53.h>
  18 #include <asm/arch/clock.h>
  19 #include <linux/errno.h>
  20 #include <linux/libfdt.h>
  21 #include <asm/mach-imx/mxc_i2c.h>
  22 #include <asm/mach-imx/mx5_video.h>
  23 #include <environment.h>
  24 #include <netdev.h>
  25 #include <i2c.h>
  26 #include <mmc.h>
  27 #include <fsl_esdhc.h>
  28 #include <asm/gpio.h>
  29 #include <power/pmic.h>
  30 #include <dialog_pmic.h>
  31 #include <fsl_pmic.h>
  32 #include <linux/fb.h>
  33 #include <ipu_pixfmt.h>
  34 #include <version.h>
  35 #include <watchdog.h>
  36 #include "ppd_gpio.h"
  37 #include <stdlib.h>
  38 #include "../../ge/common/ge_common.h"
  39 #include "../../ge/common/vpd_reader.h"
  40
  41 #define MX53PPD_LCD_POWER               IMX_GPIO_NR(3, 24)
  42
  43 DECLARE_GLOBAL_DATA_PTR;
  44
  45 static u32 mx53_dram_size[2];
  46
  47 phys_size_t get_effective_memsize(void)
  48 {
  49         /*
  50          * WARNING: We must override get_effective_memsize() function here
  51          * to report only the size of the first DRAM bank. This is to make
  52          * U-Boot relocator place U-Boot into valid memory, that is, at the
  53          * end of the first DRAM bank. If we did not override this function
  54          * like so, U-Boot would be placed at the address of the first DRAM
  55          * bank + total DRAM size - sizeof(uboot), which in the setup where
  56          * each DRAM bank contains 512MiB of DRAM would result in placing
  57          * U-Boot into invalid memory area close to the end of the first
  58          * DRAM bank.
  59          */
  60         return mx53_dram_size[0];
  61 }
  62
  63 int dram_init(void)
  64 {
  65         mx53_dram_size[0] = get_ram_size((void *)PHYS_SDRAM_1, 1 << 30);
  66         mx53_dram_size[1] = get_ram_size((void *)PHYS_SDRAM_2, 1 << 30);
  67
  68         gd->ram_size = mx53_dram_size[0] + mx53_dram_size[1];
  69
  70         return 0;
  71 }
  72
  73 int dram_init_banksize(void)
  74 {
  75         gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
  76         gd->bd->bi_dram[0].size = mx53_dram_size[0];
  77
  78         gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
  79         gd->bd->bi_dram[1].size = mx53_dram_size[1];
  80
  81         return 0;
  82 }
  83
  84 u32 get_board_rev(void)
  85 {
  86         return get_cpu_rev() & ~(0xF << 8);
  87 }
  88
  89 #define UART_PAD_CTRL   (PAD_CTL_HYS | PAD_CTL_DSE_HIGH | \
  90                          PAD_CTL_PUS_100K_UP | PAD_CTL_ODE)
  91
  92 #ifdef CONFIG_USB_EHCI_MX5
  93 int board_ehci_hcd_init(int port)
  94 {
  95         /* request VBUS power enable pin, GPIO7_8 */
  96         imx_iomux_v3_setup_pad(MX53_PAD_PATA_DA_2__GPIO7_8);
  97         gpio_direction_output(IMX_GPIO_NR(7, 8), 1);
  98         return 0;
  99 }
 100 #endif
 101
 102 static void setup_iomux_fec(void)
 103 {
 104         static const iomux_v3_cfg_t fec_pads[] = {
 105                 NEW_PAD_CTRL(MX53_PAD_FEC_MDIO__FEC_MDIO, PAD_CTL_HYS |
 106                              PAD_CTL_DSE_HIGH | PAD_CTL_PUS_22K_UP |
 107                              PAD_CTL_ODE),
 108                 NEW_PAD_CTRL(MX53_PAD_FEC_MDC__FEC_MDC, PAD_CTL_DSE_HIGH),
 109                 NEW_PAD_CTRL(MX53_PAD_FEC_RXD1__FEC_RDATA_1,
 110                              PAD_CTL_HYS | PAD_CTL_PKE),
 111                 NEW_PAD_CTRL(MX53_PAD_FEC_RXD0__FEC_RDATA_0,
 112                              PAD_CTL_HYS | PAD_CTL_PKE),
 113                 NEW_PAD_CTRL(MX53_PAD_FEC_TXD1__FEC_TDATA_1, PAD_CTL_DSE_HIGH),
 114                 NEW_PAD_CTRL(MX53_PAD_FEC_TXD0__FEC_TDATA_0, PAD_CTL_DSE_HIGH),
 115                 NEW_PAD_CTRL(MX53_PAD_FEC_TX_EN__FEC_TX_EN, PAD_CTL_DSE_HIGH),
 116                 NEW_PAD_CTRL(MX53_PAD_FEC_REF_CLK__FEC_TX_CLK,
 117                              PAD_CTL_HYS | PAD_CTL_PKE),
 118                 NEW_PAD_CTRL(MX53_PAD_FEC_RX_ER__FEC_RX_ER,
 119                              PAD_CTL_HYS | PAD_CTL_PKE),
 120                 NEW_PAD_CTRL(MX53_PAD_FEC_CRS_DV__FEC_RX_DV,
 121                              PAD_CTL_HYS | PAD_CTL_PKE),
 122         };
 123
 124         imx_iomux_v3_setup_multiple_pads(fec_pads, ARRAY_SIZE(fec_pads));
 125 }
 126
 127 #define I2C_PAD_CTRL    (PAD_CTL_SRE_FAST | PAD_CTL_DSE_HIGH | \
 128                          PAD_CTL_PUS_100K_UP | PAD_CTL_ODE)
 129
 130 static void setup_iomux_i2c(void)
 131 {
 132         static const iomux_v3_cfg_t i2c1_pads[] = {
 133                 NEW_PAD_CTRL(MX53_PAD_CSI0_DAT8__I2C1_SDA, I2C_PAD_CTRL),
 134                 NEW_PAD_CTRL(MX53_PAD_CSI0_DAT9__I2C1_SCL, I2C_PAD_CTRL),
 135         };
 136
 137         imx_iomux_v3_setup_multiple_pads(i2c1_pads, ARRAY_SIZE(i2c1_pads));
 138 }
 139
 140 #define I2C_PAD MUX_PAD_CTRL(I2C_PAD_CTRL)
 141
 142 static struct i2c_pads_info i2c_pad_info1 = {
 143         .scl = {
 144                 .i2c_mode = MX53_PAD_EIM_D21__I2C1_SCL | I2C_PAD,
 145                 .gpio_mode = MX53_PAD_EIM_D28__GPIO3_28 | I2C_PAD,
 146                 .gp = IMX_GPIO_NR(3, 28)
 147         },
 148         .sda = {
 149                 .i2c_mode = MX53_PAD_EIM_D28__I2C1_SDA | I2C_PAD,
 150                 .gpio_mode = MX53_PAD_EIM_D21__GPIO3_21 | I2C_PAD,
 151                 .gp = IMX_GPIO_NR(3, 21)
 152         }
 153 };
 154
 155 static int clock_1GHz(void)
 156 {
 157         int ret;
 158         u32 ref_clk = MXC_HCLK;
 159         /*
 160          * After increasing voltage to 1.25V, we can switch
 161          * CPU clock to 1GHz and DDR to 400MHz safely
 162          */
 163         ret = mxc_set_clock(ref_clk, 1000, MXC_ARM_CLK);
 164         if (ret) {
 165                 printf("CPU:   Switch CPU clock to 1GHZ failed\n");
 166                 return -1;
 167         }
 168
 169         ret = mxc_set_clock(ref_clk, 400, MXC_PERIPH_CLK);
 170         ret |= mxc_set_clock(ref_clk, 400, MXC_DDR_CLK);
 171         if (ret) {
 172                 printf("CPU:   Switch DDR clock to 400MHz failed\n");
 173                 return -1;
 174         }
 175
 176         return 0;
 177 }
 178
 179 void ppd_gpio_init(void)
 180 {
 181         int i;
 182
 183         imx_iomux_v3_setup_multiple_pads(ppd_pads, ARRAY_SIZE(ppd_pads));
 184         for (i = 0; i < ARRAY_SIZE(ppd_gpios); ++i)
 185                 gpio_direction_output(ppd_gpios[i].gpio, ppd_gpios[i].value);
 186 }
 187
 188 int board_early_init_f(void)
 189 {
 190         setup_iomux_fec();
 191         setup_iomux_lcd();
 192         ppd_gpio_init();
 193
 194         return 0;
 195 }
 196
 197 /*
 198  * Do not overwrite the console
 199  * Use always serial for U-Boot console
 200  */
 201 int overwrite_console(void)
 202 {
 203         return 1;
 204 }
 205
 206 #define VPD_TYPE_INVALID 0x00
 207 #define VPD_BLOCK_NETWORK 0x20
 208 #define VPD_BLOCK_HWID 0x44
 209 #define VPD_PRODUCT_PPD 4
 210 #define VPD_HAS_MAC1 0x1
 211 #define VPD_MAC_ADDRESS_LENGTH 6
 212
 213 struct vpd_cache {
 214         u8 product_id;
 215         u8 has;
 216         unsigned char mac1[VPD_MAC_ADDRESS_LENGTH];
 217 };
 218
 219 /*
 220  * Extracts MAC and product information from the VPD.
 221  */
 222 static int vpd_callback(struct vpd_cache *userdata, u8 id, u8 version,
 223                         u8 type, size_t size, u8 const *data)
 224 {
 225         struct vpd_cache *vpd = userdata;
 226
 227         if (id == VPD_BLOCK_HWID && version == 1 && type != VPD_TYPE_INVALID &&
 228             size >= 1) {
 229                 vpd->product_id = data[0];
 230
 231         } else if (id == VPD_BLOCK_NETWORK && version == 1 &&
 232                    type != VPD_TYPE_INVALID) {
 233                 if (size >= 6) {
 234                         vpd->has |= VPD_HAS_MAC1;
 235                         memcpy(vpd->mac1, data, VPD_MAC_ADDRESS_LENGTH);
 236                 }
 237         }
 238
 239         return 0;
 240 }
 241
 242 static void process_vpd(struct vpd_cache *vpd)
 243 {
 244         int fec_index = -1;
 245
 246         if (vpd->product_id == VPD_PRODUCT_PPD)
 247                 fec_index = 0;
 248
 249         if (fec_index >= 0 && (vpd->has & VPD_HAS_MAC1))
 250                 eth_env_set_enetaddr("ethaddr", vpd->mac1);
 251 }
 252
 253 int board_init(void)
 254 {
 255         gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
 256
 257         mxc_set_sata_internal_clock();
 258         setup_iomux_i2c();
 259
 260         setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
 261
 262         return 0;
 263 }
 264
 265 int misc_init_r(void)
 266 {
 267         const char *cause;
 268
 269         /* We care about WDOG only, treating everything else as
 270          * a power-on-reset.
 271          */
 272         if (get_imx_reset_cause() & 0x0010)
 273                 cause = "WDOG";
 274         else
 275                 cause = "POR";
 276
 277         env_set("bootcause", cause);
 278
 279         return 0;
 280 }
 281
 282 int board_late_init(void)
 283 {
 284         int res;
 285         struct vpd_cache vpd;
 286
 287         memset(&vpd, 0, sizeof(vpd));
 288         res = read_vpd(&vpd, vpd_callback);
 289         if (!res)
 290                 process_vpd(&vpd);
 291         else
 292                 printf("Can't read VPD");
 293
 294         res = clock_1GHz();
 295         if (res != 0)
 296                 return res;
 297
 298         print_cpuinfo();
 299         hw_watchdog_init();
 300
 301         check_time();
 302
 303         return 0;
 304 }
 305
 306 int checkboard(void)
 307 {
 308         puts("Board: GE PPD\n");
 309
 310         return 0;
 311 }
 312
 313 #ifdef CONFIG_OF_BOARD_SETUP
 314 int ft_board_setup(void *blob, bd_t *bd)
 315 {
 316         fdt_setprop(blob, 0, "ge,boot-ver", version_string,
 317                                             strlen(version_string) + 1);
 318         return 0;
 319 }
 320 #endif