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