board/davedenx/aria/aria.c

   1 /*
   2  * (C) Copyright 2009 Wolfgang Denk <wd@denx.de>
   3  * (C) Copyright 2009 Dave Srl www.dave.eu
   4  *
   5  * See file CREDITS for list of people who contributed to this
   6  * project.
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License as
  10  * published by the Free Software Foundation; either version 2 of
  11  * the License, or (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21  * MA 02111-1307 USA
  22  *
  23  */
  24
  25 #include <common.h>
  26 #include <asm/bitops.h>
  27 #include <command.h>
  28 #include <asm/io.h>
  29 #include <asm/processor.h>
  30 #include <asm/mpc512x.h>
  31 #include <fdt_support.h>
  32 #ifdef CONFIG_MISC_INIT_R
  33 #include <i2c.h>
  34 #endif
  35
  36 DECLARE_GLOBAL_DATA_PTR;
  37
  38 /* Clocks in use */
  39 #define SCCR1_CLOCKS_EN (CLOCK_SCCR1_CFG_EN |                           \
  40                          CLOCK_SCCR1_LPC_EN |                           \
  41                          CLOCK_SCCR1_PSC_EN(CONFIG_PSC_CONSOLE) |       \
  42                          CLOCK_SCCR1_PSCFIFO_EN |                       \
  43                          CLOCK_SCCR1_DDR_EN |                           \
  44                          CLOCK_SCCR1_FEC_EN |                           \
  45                          CLOCK_SCCR1_NFC_EN |                           \
  46                          CLOCK_SCCR1_PATA_EN |                          \
  47                          CLOCK_SCCR1_PCI_EN |                           \
  48                          CLOCK_SCCR1_TPR_EN)
  49
  50 #define SCCR2_CLOCKS_EN (CLOCK_SCCR2_MEM_EN |           \
  51                          CLOCK_SCCR2_SPDIF_EN |         \
  52                          CLOCK_SCCR2_DIU_EN |           \
  53                          CLOCK_SCCR2_I2C_EN)
  54
  55 int board_early_init_f(void)
  56 {
  57         volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR;
  58         u32 spridr;
  59
  60         /*
  61          * Initialize Local Window for the On Board FPGA access
  62          */
  63         out_be32(&im->sysconf.lpcs2aw,
  64                 CSAW_START(CONFIG_SYS_ARIA_FPGA_BASE) |
  65                 CSAW_STOP(CONFIG_SYS_ARIA_FPGA_BASE, CONFIG_SYS_ARIA_FPGA_SIZE)
  66         );
  67         out_be32(&im->lpc.cs_cfg[2], CONFIG_SYS_CS2_CFG);
  68         sync_law(&im->sysconf.lpcs2aw);
  69
  70         /*
  71          * Initialize Local Window for the On Board SRAM access
  72          */
  73         out_be32(&im->sysconf.lpcs6aw,
  74                 CSAW_START(CONFIG_SYS_ARIA_SRAM_BASE) |
  75                 CSAW_STOP(CONFIG_SYS_ARIA_SRAM_BASE, CONFIG_SYS_ARIA_SRAM_SIZE)
  76         );
  77         out_be32(&im->lpc.cs_cfg[6], CONFIG_SYS_CS6_CFG);
  78         sync_law(&im->sysconf.lpcs6aw);
  79
  80         /*
  81          * Configure Flash Speed
  82          */
  83         out_be32(&im->lpc.cs_cfg[0], CONFIG_SYS_CS0_CFG);
  84
  85         spridr = in_be32(&im->sysconf.spridr);
  86
  87         if (SVR_MJREV(spridr) >= 2)
  88                 out_be32(&im->lpc.altr, CONFIG_SYS_CS_ALETIMING);
  89
  90         /*
  91          * Enable clocks
  92          */
  93         out_be32(&im->clk.sccr[0], SCCR1_CLOCKS_EN);
  94         out_be32(&im->clk.sccr[1], SCCR2_CLOCKS_EN);
  95 #if defined(CONFIG_IIM) || defined(CONFIG_CMD_FUSE)
  96         setbits_be32(&im->clk.sccr[1], CLOCK_SCCR2_IIM_EN);
  97 #endif
  98
  99         return 0;
 100 }
 101
 102 phys_size_t initdram (int board_type)
 103 {
 104         return fixed_sdram(NULL, NULL, 0);
 105 }
 106
 107 int misc_init_r(void)
 108 {
 109         u32 tmp;
 110
 111         /* we use I2C-2 for on-board eeprom */
 112         i2c_set_bus_num(2);
 113
 114         tmp = in_be32((u32*)CONFIG_SYS_ARIA_FPGA_BASE);
 115         printf("FPGA:  %u-%u.%u.%u\n",
 116                 (tmp & 0xFF000000) >> 24,
 117                 (tmp & 0x00FF0000) >> 16,
 118                 (tmp & 0x0000FF00) >>  8,
 119                  tmp & 0x000000FF
 120         );
 121
 122         return 0;
 123 }
 124
 125 static  iopin_t ioregs_init[] = {
 126         /*
 127          * FEC
 128          */
 129
 130         /* FEC on PSCx_x*/
 131         {
 132                 offsetof(struct ioctrl512x, io_control_psc0_0), 5, 0,
 133                 IO_PIN_FMUX(1) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
 134                 IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
 135         },
 136         {
 137                 offsetof(struct ioctrl512x, io_control_psc1_0), 10, 0,
 138                 IO_PIN_FMUX(1) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
 139                 IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
 140         },
 141         {
 142                 offsetof(struct ioctrl512x, io_control_spdif_txclk), 3, 0,
 143                 IO_PIN_FMUX(1) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
 144                 IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
 145         },
 146
 147         /*
 148          * DIU
 149          */
 150         /* FUNC2=DIU CLK */
 151         {
 152                 offsetof(struct ioctrl512x, io_control_psc6_0), 1, 0,
 153                 IO_PIN_FMUX(2) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
 154                 IO_PIN_PUE(0) | IO_PIN_ST(1) | IO_PIN_DS(3)
 155         },
 156         /* FUNC2=DIU_HSYNC */
 157         {
 158                 offsetof(struct ioctrl512x, io_control_psc6_1), 1, 0,
 159                 IO_PIN_FMUX(2) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
 160                 IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
 161         },
 162         /* FUNC2=DIUVSYNC Sets Next 26 to DIU Pads */
 163         {
 164                 offsetof(struct ioctrl512x, io_control_psc6_4), 26, 0,
 165                 IO_PIN_FMUX(2) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
 166                 IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
 167         },
 168         /*
 169          * On board SRAM
 170          */
 171         /* FUNC2=/LPC CS6 */
 172         {
 173                 offsetof(struct ioctrl512x, io_control_j1850_rx), 1, 0,
 174                 IO_PIN_FMUX(2) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
 175                 IO_PIN_PUE(1) | IO_PIN_ST(1) | IO_PIN_DS(3)
 176         },
 177 };
 178
 179 int checkboard (void)
 180 {
 181         puts("Board: ARIA\n");
 182
 183         /* initialize function mux & slew rate IO inter alia on IO Pins  */
 184
 185         iopin_initialize(ioregs_init, ARRAY_SIZE(ioregs_init));
 186
 187         return 0;
 188 }
 189
 190 #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
 191 void ft_board_setup(void *blob, bd_t *bd)
 192 {
 193         ft_cpu_setup(blob, bd);
 194 }
 195 #endif /* defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) */