board/laird/wb50n/wb50n.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  */
   4
   5 #include <common.h>
   6 #include <init.h>
   7 #include <asm/global_data.h>
   8 #include <asm/io.h>
   9 #include <asm/arch/at91_sfr.h>
  10 #include <asm/arch/sama5d3_smc.h>
  11 #include <asm/arch/at91_common.h>
  12 #include <asm/arch/at91_pmc.h>
  13 #include <asm/arch/at91_rstc.h>
  14 #include <asm/arch/gpio.h>
  15 #include <asm/arch/clk.h>
  16 #include <env.h>
  17 #include <micrel.h>
  18 #include <net.h>
  19 #include <netdev.h>
  20 #include <spl.h>
  21 #include <asm/arch/atmel_mpddrc.h>
  22 #include <asm/arch/at91_wdt.h>
  23
  24 DECLARE_GLOBAL_DATA_PTR;
  25
  26 /* ------------------------------------------------------------------------- */
  27 /*
  28  * Miscelaneous platform dependent initialisations
  29  */
  30
  31 void wb50n_nand_hw_init(void)
  32 {
  33         struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC;
  34
  35         at91_periph_clk_enable(ATMEL_ID_SMC);
  36
  37         /* Configure SMC CS3 for NAND/SmartMedia */
  38         writel(AT91_SMC_SETUP_NWE(2) | AT91_SMC_SETUP_NCS_WR(1) |
  39                AT91_SMC_SETUP_NRD(2) | AT91_SMC_SETUP_NCS_RD(1),
  40                &smc->cs[3].setup);
  41         writel(AT91_SMC_PULSE_NWE(3) | AT91_SMC_PULSE_NCS_WR(5) |
  42                AT91_SMC_PULSE_NRD(3) | AT91_SMC_PULSE_NCS_RD(5),
  43                &smc->cs[3].pulse);
  44         writel(AT91_SMC_CYCLE_NWE(8) | AT91_SMC_CYCLE_NRD(8),
  45                &smc->cs[3].cycle);
  46         writel(AT91_SMC_TIMINGS_TCLR(3) | AT91_SMC_TIMINGS_TADL(10) |
  47                AT91_SMC_TIMINGS_TAR(3) | AT91_SMC_TIMINGS_TRR(4) |
  48                AT91_SMC_TIMINGS_TWB(5) | AT91_SMC_TIMINGS_RBNSEL(3) |
  49                AT91_SMC_TIMINGS_NFSEL(1), &smc->cs[3].timings);
  50         writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE |
  51                AT91_SMC_MODE_EXNW_DISABLE |
  52                AT91_SMC_MODE_DBW_8 |
  53                AT91_SMC_MODE_TDF_CYCLE(3), &smc->cs[3].mode);
  54
  55         /* Disable Flash Write Protect Line */
  56         at91_set_pio_output(AT91_PIO_PORTE, 14, 1);
  57 }
  58
  59 int board_early_init_f(void)
  60 {
  61         at91_periph_clk_enable(ATMEL_ID_PIOA);
  62         at91_periph_clk_enable(ATMEL_ID_PIOB);
  63         at91_periph_clk_enable(ATMEL_ID_PIOC);
  64         at91_periph_clk_enable(ATMEL_ID_PIOD);
  65         at91_periph_clk_enable(ATMEL_ID_PIOE);
  66
  67         at91_seriald_hw_init();
  68
  69         return 0;
  70 }
  71
  72 int board_init(void)
  73 {
  74         /* adress of boot parameters */
  75         gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
  76
  77         wb50n_nand_hw_init();
  78
  79         at91_macb_hw_init();
  80
  81         return 0;
  82 }
  83
  84 int dram_init(void)
  85 {
  86         gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
  87                                     CONFIG_SYS_SDRAM_SIZE);
  88         return 0;
  89 }
  90
  91 int board_phy_config(struct phy_device *phydev)
  92 {
  93         /* rx data delay */
  94         ksz9021_phy_extended_write(phydev,
  95                                    MII_KSZ9021_EXT_RGMII_RX_DATA_SKEW, 0x2222);
  96         /* tx data delay */
  97         ksz9021_phy_extended_write(phydev,
  98                                    MII_KSZ9021_EXT_RGMII_TX_DATA_SKEW, 0x2222);
  99         /* rx/tx clock delay */
 100         ksz9021_phy_extended_write(phydev,
 101                                    MII_KSZ9021_EXT_RGMII_CLOCK_SKEW, 0xf2f4);
 102
 103         return 0;
 104 }
 105
 106 int board_eth_init(struct bd_info *bis)
 107 {
 108         int rc = 0;
 109
 110         rc = macb_eth_initialize(0, (void *)ATMEL_BASE_EMAC, 0x00);
 111
 112         return rc;
 113 }
 114
 115 #ifdef CONFIG_BOARD_LATE_INIT
 116 #include <linux/ctype.h>
 117 int board_late_init(void)
 118 {
 119 #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
 120         const char *LAIRD_NAME = "lrd_name";
 121         char name[32], *p;
 122
 123         strcpy(name, get_cpu_name());
 124         for (p = name; *p != '\0'; *p = tolower(*p), p++)
 125                 ;
 126         strcat(name, "-wb50n");
 127         env_set(LAIRD_NAME, name);
 128
 129 #endif
 130
 131         return 0;
 132 }
 133 #endif
 134
 135 /* SPL */
 136 #ifdef CONFIG_SPL_BUILD
 137 void spl_board_init(void)
 138 {
 139         wb50n_nand_hw_init();
 140 }
 141
 142 static void ddr2_conf(struct atmel_mpddrc_config *ddr2)
 143 {
 144         ddr2->md = (ATMEL_MPDDRC_MD_DBW_32_BITS | ATMEL_MPDDRC_MD_LPDDR_SDRAM);
 145
 146         ddr2->cr = (ATMEL_MPDDRC_CR_NC_COL_9 |
 147                     ATMEL_MPDDRC_CR_NR_ROW_13 |
 148                     ATMEL_MPDDRC_CR_CAS_DDR_CAS3 |
 149                     ATMEL_MPDDRC_CR_NDQS_DISABLED |
 150                     ATMEL_MPDDRC_CR_DECOD_INTERLEAVED |
 151                     ATMEL_MPDDRC_CR_UNAL_SUPPORTED);
 152
 153         ddr2->rtr = 0x411;
 154
 155         ddr2->tpr0 = (6 << ATMEL_MPDDRC_TPR0_TRAS_OFFSET |
 156                       2 << ATMEL_MPDDRC_TPR0_TRCD_OFFSET |
 157                       2 << ATMEL_MPDDRC_TPR0_TWR_OFFSET |
 158                       8 << ATMEL_MPDDRC_TPR0_TRC_OFFSET |
 159                       2 << ATMEL_MPDDRC_TPR0_TRP_OFFSET |
 160                       2 << ATMEL_MPDDRC_TPR0_TRRD_OFFSET |
 161                       2 << ATMEL_MPDDRC_TPR0_TWTR_OFFSET |
 162                       2 << ATMEL_MPDDRC_TPR0_TMRD_OFFSET);
 163
 164         ddr2->tpr1 = (2 << ATMEL_MPDDRC_TPR1_TXP_OFFSET |
 165                       200 << ATMEL_MPDDRC_TPR1_TXSRD_OFFSET |
 166                       19 << ATMEL_MPDDRC_TPR1_TXSNR_OFFSET |
 167                       18 << ATMEL_MPDDRC_TPR1_TRFC_OFFSET);
 168
 169         ddr2->tpr2 = (7 << ATMEL_MPDDRC_TPR2_TFAW_OFFSET |
 170                       2 << ATMEL_MPDDRC_TPR2_TRTP_OFFSET |
 171                       3 << ATMEL_MPDDRC_TPR2_TRPA_OFFSET |
 172                       7 << ATMEL_MPDDRC_TPR2_TXARDS_OFFSET |
 173                       2 << ATMEL_MPDDRC_TPR2_TXARD_OFFSET);
 174 }
 175
 176 void mem_init(void)
 177 {
 178         struct atmel_mpddrc_config ddr2;
 179
 180         ddr2_conf(&ddr2);
 181
 182         configure_ddrcfg_input_buffers(true);
 183
 184         /* enable MPDDR clock */
 185         at91_periph_clk_enable(ATMEL_ID_MPDDRC);
 186         at91_system_clk_enable(AT91_PMC_DDR);
 187
 188         /* DDRAM2 Controller initialize */
 189         ddr2_init(ATMEL_BASE_MPDDRC, ATMEL_BASE_DDRCS, &ddr2);
 190 }
 191
 192 void at91_pmc_init(void)
 193 {
 194         u32 tmp;
 195
 196         tmp = AT91_PMC_PLLAR_29 |
 197               AT91_PMC_PLLXR_PLLCOUNT(0x3f) |
 198               AT91_PMC_PLLXR_MUL(43) | AT91_PMC_PLLXR_DIV(1);
 199         at91_plla_init(tmp);
 200
 201         at91_pllicpr_init(AT91_PMC_IPLL_PLLA(0x3));
 202
 203         tmp = AT91_PMC_MCKR_MDIV_4 | AT91_PMC_MCKR_CSS_PLLA;
 204         at91_mck_init(tmp);
 205 }
 206 #endif