board/ti/tnetv107xevm/sdb_board.c

   1 /*
   2  * TNETV107X-EVM: Board initialization
   3  *
   4  * SPDX-License-Identifier:     GPL-2.0+
   5  */
   6
   7 #include <common.h>
   8 #include <miiphy.h>
   9 #include <linux/mtd/nand.h>
  10 #include <asm/arch/hardware.h>
  11 #include <asm/arch/clock.h>
  12 #include <asm/io.h>
  13 #include <asm/mach-types.h>
  14 #include <asm/ti-common/davinci_nand.h>
  15 #include <asm/arch/mux.h>
  16
  17 DECLARE_GLOBAL_DATA_PTR;
  18
  19 static struct async_emif_config async_emif_config[ASYNC_EMIF_NUM_CS] = {
  20         {                       /* CS0 */
  21                 .mode           = ASYNC_EMIF_MODE_NAND,
  22                 .wr_setup       = 5,
  23                 .wr_strobe      = 5,
  24                 .wr_hold        = 2,
  25                 .rd_setup       = 5,
  26                 .rd_strobe      = 5,
  27                 .rd_hold        = 2,
  28                 .turn_around    = 5,
  29                 .width          = ASYNC_EMIF_8,
  30         },
  31         {                       /* CS1 */
  32                 .mode           = ASYNC_EMIF_MODE_NOR,
  33                 .wr_setup       = 2,
  34                 .wr_strobe      = 27,
  35                 .wr_hold        = 4,
  36                 .rd_setup       = 2,
  37                 .rd_strobe      = 27,
  38                 .rd_hold        = 4,
  39                 .turn_around    = 2,
  40                 .width          = ASYNC_EMIF_PRESERVE,
  41         },
  42         {                       /* CS2 */
  43                 .mode           = ASYNC_EMIF_MODE_NOR,
  44                 .wr_setup       = 2,
  45                 .wr_strobe      = 27,
  46                 .wr_hold        = 4,
  47                 .rd_setup       = 2,
  48                 .rd_strobe      = 27,
  49                 .rd_hold        = 4,
  50                 .turn_around    = 2,
  51                 .width          = ASYNC_EMIF_PRESERVE,
  52         },
  53         {                       /* CS3 */
  54                 .mode           = ASYNC_EMIF_MODE_NOR,
  55                 .wr_setup       = 1,
  56                 .wr_strobe      = 90,
  57                 .wr_hold        = 3,
  58                 .rd_setup       = 1,
  59                 .rd_strobe      = 26,
  60                 .rd_hold        = 3,
  61                 .turn_around    = 1,
  62                 .width          = ASYNC_EMIF_8,
  63         },
  64 };
  65
  66 static struct pll_init_data pll_config[] = {
  67         {
  68                 .pll                    = ETH_PLL,
  69                 .internal_osc           = 1,
  70                 .pll_freq               = 500000000,
  71                 .div_freq = {
  72                         5000000, 50000000, 125000000, 250000000, 25000000,
  73                 },
  74         },
  75 };
  76
  77 static const short sdio1_pins[] = {
  78         TNETV107X_PIN_SDIO1_CLK_1,      TNETV107X_PIN_SDIO1_CMD_1,
  79         TNETV107X_PIN_SDIO1_DATA0_1,    TNETV107X_PIN_SDIO1_DATA1_1,
  80         TNETV107X_PIN_SDIO1_DATA2_1,    TNETV107X_PIN_SDIO1_DATA3_1,
  81         -1
  82 };
  83
  84 static const short uart1_pins[] = {
  85         TNETV107X_PIN_UART1_RD, TNETV107X_PIN_UART1_TD, -1
  86 };
  87
  88 static const short ssp_pins[] = {
  89         TNETV107X_PIN_SSP0_0, TNETV107X_PIN_SSP0_1, TNETV107X_PIN_SSP0_2,
  90         TNETV107X_PIN_SSP1_0, TNETV107X_PIN_SSP1_1, TNETV107X_PIN_SSP1_2,
  91         TNETV107X_PIN_SSP1_3, -1
  92 };
  93
  94 int board_init(void)
  95 {
  96 #ifndef CONFIG_USE_IRQ
  97         __raw_writel(0, INTC_GLB_EN);           /* Global disable       */
  98         __raw_writel(0, INTC_HINT_EN);          /* Disable host ints    */
  99         __raw_writel(0, INTC_EN_CLR0 + 0);      /* Clear enable         */
 100         __raw_writel(0, INTC_EN_CLR0 + 4);      /* Clear enable         */
 101         __raw_writel(0, INTC_EN_CLR0 + 8);      /* Clear enable         */
 102 #endif
 103
 104         gd->bd->bi_arch_number = MACH_TYPE_TNETV107X;
 105         gd->bd->bi_boot_params = LINUX_BOOT_PARAM_ADDR;
 106
 107         init_plls(ARRAY_SIZE(pll_config), pll_config);
 108
 109         init_async_emif(ARRAY_SIZE(async_emif_config), async_emif_config);
 110
 111         mux_select_pin(TNETV107X_PIN_ASR_CS3);
 112         mux_select_pins(sdio1_pins);
 113         mux_select_pins(uart1_pins);
 114         mux_select_pins(ssp_pins);
 115
 116         return 0;
 117 }
 118
 119 int dram_init(void)
 120 {
 121         gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
 122         gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
 123
 124         return 0;
 125 }
 126
 127 #ifdef CONFIG_NAND_DAVINCI
 128 int board_nand_init(struct nand_chip *nand)
 129 {
 130         davinci_nand_init(nand);
 131
 132         return 0;
 133 }
 134 #endif