uboot/board/keymile/km83xx/km83xx.c
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   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 * Copyright (C) 2006 Freescale Semiconductor, Inc.
   4 *                    Dave Liu <daveliu@freescale.com>
   5 *
   6 * Copyright (C) 2007 Logic Product Development, Inc.
   7 *                    Peter Barada <peterb@logicpd.com>
   8 *
   9 * Copyright (C) 2007 MontaVista Software, Inc.
  10 *                    Anton Vorontsov <avorontsov@ru.mvista.com>
  11 *
  12 * (C) Copyright 2008 - 2010
  13 * Heiko Schocher, DENX Software Engineering, hs@denx.de.
  14 */
  15
  16#include <common.h>
  17#include <env.h>
  18#include <fdt_support.h>
  19#include <init.h>
  20#include <ioports.h>
  21#include <log.h>
  22#include <mpc83xx.h>
  23#include <i2c.h>
  24#include <miiphy.h>
  25#include <asm/global_data.h>
  26#include <asm/io.h>
  27#include <asm/mmu.h>
  28#include <asm/processor.h>
  29#include <pci.h>
  30#include <linux/delay.h>
  31#include <linux/libfdt.h>
  32#include <post.h>
  33
  34#include "../common/common.h"
  35
  36DECLARE_GLOBAL_DATA_PTR;
  37
  38static uchar ivm_content[CONFIG_SYS_IVM_EEPROM_MAX_LEN];
  39
  40static int piggy_present(void)
  41{
  42        struct km_bec_fpga __iomem *base =
  43                (struct km_bec_fpga __iomem *)CONFIG_SYS_KMBEC_FPGA_BASE;
  44
  45        return in_8(&base->bprth) & PIGGY_PRESENT;
  46}
  47
  48int ethernet_present(void)
  49{
  50        return piggy_present();
  51}
  52
  53int board_early_init_r(void)
  54{
  55        struct km_bec_fpga *base =
  56                (struct km_bec_fpga *)CONFIG_SYS_KMBEC_FPGA_BASE;
  57
  58#if defined(CONFIG_ARCH_MPC8360)
  59        unsigned short  svid;
  60        /*
  61         * Because of errata in the UCCs, we have to write to the reserved
  62         * registers to slow the clocks down.
  63         */
  64        svid =  SVR_REV(mfspr(SVR));
  65        switch (svid) {
  66        case 0x0020:
  67                /*
  68                 * MPC8360ECE.pdf QE_ENET10 table 4:
  69                 * IMMR + 0x14A8[4:5] = 11 (clk delay for UCC 2)
  70                 * IMMR + 0x14A8[18:19] = 11 (clk delay for UCC 1)
  71                 */
  72                setbits_be32((void *)(CONFIG_SYS_IMMR + 0x14a8), 0x0c003000);
  73                break;
  74        case 0x0021:
  75                /*
  76                 * MPC8360ECE.pdf QE_ENET10 table 4:
  77                 * IMMR + 0x14AC[24:27] = 1010
  78                 */
  79                clrsetbits_be32((void *)(CONFIG_SYS_IMMR + 0x14ac),
  80                        0x00000050, 0x000000a0);
  81                break;
  82        }
  83#endif
  84
  85        /* enable the PHY on the PIGGY */
  86        setbits_8(&base->pgy_eth, 0x01);
  87        /* enable the Unit LED (green) */
  88        setbits_8(&base->oprth, WRL_BOOT);
  89        /* enable Application Buffer */
  90        setbits_8(&base->oprtl, OPRTL_XBUFENA);
  91
  92        return 0;
  93}
  94
  95int misc_init_r(void)
  96{
  97        ivm_read_eeprom(ivm_content, CONFIG_SYS_IVM_EEPROM_MAX_LEN,
  98                        CONFIG_PIGGY_MAC_ADDRESS_OFFSET);
  99        return 0;
 100}
 101
 102int last_stage_init(void)
 103{
 104#if defined(CONFIG_TARGET_KMCOGE5NE)
 105        struct bfticu_iomap *base =
 106                (struct bfticu_iomap *)CONFIG_SYS_BFTIC3_BASE;
 107        u8 dip_switch = in_8((u8 *)&(base->mswitch)) & BFTICU_DIPSWITCH_MASK;
 108
 109        if (dip_switch != 0) {
 110                /* start bootloader */
 111                puts("DIP:   Enabled\n");
 112                env_set("actual_bank", "0");
 113        }
 114#endif
 115        set_km_env();
 116        return 0;
 117}
 118
 119static int fixed_sdram(void)
 120{
 121        immap_t *im = (immap_t *)CONFIG_SYS_IMMR;
 122        u32 msize = 0;
 123        u32 ddr_size;
 124        u32 ddr_size_log2;
 125
 126        out_be32(&im->sysconf.ddrlaw[0].ar, (LAWAR_EN | 0x1e));
 127        out_be32(&im->ddr.csbnds[0].csbnds, (CONFIG_SYS_DDR_CS0_BNDS) | 0x7f);
 128        out_be32(&im->ddr.cs_config[0], CONFIG_SYS_DDR_CS0_CONFIG);
 129        out_be32(&im->ddr.timing_cfg_0, CONFIG_SYS_DDR_TIMING_0);
 130        out_be32(&im->ddr.timing_cfg_1, CONFIG_SYS_DDR_TIMING_1);
 131        out_be32(&im->ddr.timing_cfg_2, CONFIG_SYS_DDR_TIMING_2);
 132        out_be32(&im->ddr.timing_cfg_3, CONFIG_SYS_DDR_TIMING_3);
 133        out_be32(&im->ddr.sdram_cfg, CONFIG_SYS_DDR_SDRAM_CFG);
 134        out_be32(&im->ddr.sdram_cfg2, CONFIG_SYS_DDR_SDRAM_CFG2);
 135        out_be32(&im->ddr.sdram_mode, CONFIG_SYS_DDR_MODE);
 136        out_be32(&im->ddr.sdram_mode2, CONFIG_SYS_DDR_MODE2);
 137        out_be32(&im->ddr.sdram_interval, CONFIG_SYS_DDR_INTERVAL);
 138        out_be32(&im->ddr.sdram_clk_cntl, CONFIG_SYS_DDR_CLK_CNTL);
 139        udelay(200);
 140        setbits_be32(&im->ddr.sdram_cfg, SDRAM_CFG_MEM_EN);
 141
 142        msize = CONFIG_SYS_DDR_SIZE << 20;
 143        disable_addr_trans();
 144        msize = get_ram_size(CONFIG_SYS_SDRAM_BASE, msize);
 145        enable_addr_trans();
 146        msize /= (1024 * 1024);
 147        if (CONFIG_SYS_DDR_SIZE != msize) {
 148                for (ddr_size = msize << 20, ddr_size_log2 = 0;
 149                        (ddr_size > 1);
 150                        ddr_size = ddr_size >> 1, ddr_size_log2++)
 151                        if (ddr_size & 1)
 152                                return -1;
 153                out_be32(&im->sysconf.ddrlaw[0].ar,
 154                        (LAWAR_EN | ((ddr_size_log2 - 1) & LAWAR_SIZE)));
 155                out_be32(&im->ddr.csbnds[0].csbnds,
 156                        (((msize / 16) - 1) & 0xff));
 157        }
 158
 159        return msize;
 160}
 161
 162int dram_init(void)
 163{
 164        immap_t *im = (immap_t *)CONFIG_SYS_IMMR;
 165        u32 msize = 0;
 166
 167        if ((in_be32(&im->sysconf.immrbar) & IMMRBAR_BASE_ADDR) != (u32)im)
 168                return -ENXIO;
 169
 170        out_be32(&im->sysconf.ddrlaw[0].bar,
 171                CONFIG_SYS_SDRAM_BASE & LAWBAR_BAR);
 172        msize = fixed_sdram();
 173
 174#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
 175        /*
 176         * Initialize DDR ECC byte
 177         */
 178        ddr_enable_ecc(msize * 1024 * 1024);
 179#endif
 180
 181        /* return total bus SDRAM size(bytes)  -- DDR */
 182        gd->ram_size = msize * 1024 * 1024;
 183
 184        return 0;
 185}
 186
 187int checkboard(void)
 188{
 189        puts("Board: Hitachi " CONFIG_SYS_CONFIG_NAME);
 190
 191        if (piggy_present())
 192                puts(" with PIGGY.");
 193        puts("\n");
 194        return 0;
 195}
 196
 197int ft_board_setup(void *blob, struct bd_info *bd)
 198{
 199        ft_cpu_setup(blob, bd);
 200
 201        return 0;
 202}
 203
 204#if defined(CONFIG_HUSH_INIT_VAR)
 205int hush_init_var(void)
 206{
 207        ivm_analyze_eeprom(ivm_content, CONFIG_SYS_IVM_EEPROM_MAX_LEN);
 208        return 0;
 209}
 210#endif
 211
 212#if defined(CONFIG_POST)
 213int post_hotkeys_pressed(void)
 214{
 215        int testpin = 0;
 216        struct km_bec_fpga *base =
 217                (struct km_bec_fpga *)CONFIG_SYS_KMBEC_FPGA_BASE;
 218        int testpin_reg = in_8(&base->CONFIG_TESTPIN_REG);
 219        testpin = (testpin_reg & CONFIG_TESTPIN_MASK) != 0;
 220        debug("post_hotkeys_pressed: %d\n", !testpin);
 221        return testpin;
 222}
 223
 224ulong post_word_load(void)
 225{
 226        void* addr = (ulong *) (CPM_POST_WORD_ADDR);
 227        debug("post_word_load 0x%08lX:  0x%08X\n", (ulong)addr, in_le32(addr));
 228        return in_le32(addr);
 229
 230}
 231void post_word_store(ulong value)
 232{
 233        void* addr = (ulong *) (CPM_POST_WORD_ADDR);
 234        debug("post_word_store 0x%08lX: 0x%08lX\n", (ulong)addr, value);
 235        out_le32(addr, value);
 236}
 237
 238int arch_memory_test_prepare(u32 *vstart, u32 *size, phys_addr_t *phys_offset)
 239{
 240        *vstart = CONFIG_SYS_MEMTEST_START;
 241        *size = CONFIG_SYS_MEMTEST_END - CONFIG_SYS_MEMTEST_START;
 242        debug("arch_memory_test_prepare 0x%08X 0x%08X\n", *vstart, *size);
 243
 244        return 0;
 245}
 246#endif
 247