1 /* Copyright 2013 Freescale Semiconductor, Inc. 2 * 3 * SPDX-License-Identifier: GPL-2.0+ 4 */ 5 6 #include <common.h> 7 #include <console.h> 8 #include <asm/spl.h> 9 #include <malloc.h> 10 #include <ns16550.h> 11 #include <nand.h> 12 #include <i2c.h> 13 #include "../common/qixis.h" 14 #include "b4860qds_qixis.h" 15 16 DECLARE_GLOBAL_DATA_PTR; 17 18 phys_size_t get_effective_memsize(void) 19 { 20 return CONFIG_SYS_L3_SIZE; 21 } 22 23 unsigned long get_board_sys_clk(void) 24 { 25 u8 sysclk_conf = QIXIS_READ(brdcfg[1]); 26 27 switch ((sysclk_conf & 0x0C) >> 2) { 28 case QIXIS_CLK_100: 29 return 100000000; 30 case QIXIS_CLK_125: 31 return 125000000; 32 case QIXIS_CLK_133: 33 return 133333333; 34 } 35 return 66666666; 36 } 37 38 unsigned long get_board_ddr_clk(void) 39 { 40 u8 ddrclk_conf = QIXIS_READ(brdcfg[1]); 41 42 switch (ddrclk_conf & 0x03) { 43 case QIXIS_CLK_100: 44 return 100000000; 45 case QIXIS_CLK_125: 46 return 125000000; 47 case QIXIS_CLK_133: 48 return 133333333; 49 } 50 return 66666666; 51 } 52 53 void board_init_f(ulong bootflag) 54 { 55 u32 plat_ratio, sys_clk, uart_clk; 56 ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR; 57 58 /* Memcpy existing GD at CONFIG_SPL_GD_ADDR */ 59 memcpy((void *)CONFIG_SPL_GD_ADDR, (void *)gd, sizeof(gd_t)); 60 61 /* Update GD pointer */ 62 gd = (gd_t *)(CONFIG_SPL_GD_ADDR); 63 64 /* compiler optimization barrier needed for GCC >= 3.4 */ 65 __asm__ __volatile__("" : : : "memory"); 66 67 console_init_f(); 68 69 /* initialize selected port with appropriate baud rate */ 70 sys_clk = get_board_sys_clk(); 71 plat_ratio = (in_be32(&gur->rcwsr[0]) >> 25) & 0x1f; 72 uart_clk = sys_clk * plat_ratio / 2; 73 74 NS16550_init((NS16550_t)CONFIG_SYS_NS16550_COM1, 75 uart_clk / 16 / CONFIG_BAUDRATE); 76 77 relocate_code(CONFIG_SPL_RELOC_STACK, (gd_t *)CONFIG_SPL_GD_ADDR, 0x0); 78 } 79 80 void board_init_r(gd_t *gd, ulong dest_addr) 81 { 82 bd_t *bd; 83 84 bd = (bd_t *)(gd + sizeof(gd_t)); 85 memset(bd, 0, sizeof(bd_t)); 86 gd->bd = bd; 87 bd->bi_memstart = CONFIG_SYS_INIT_L3_ADDR; 88 bd->bi_memsize = CONFIG_SYS_L3_SIZE; 89 90 arch_cpu_init(); 91 get_clocks(); 92 mem_malloc_init(CONFIG_SPL_RELOC_MALLOC_ADDR, 93 CONFIG_SPL_RELOC_MALLOC_SIZE); 94 gd->flags |= GD_FLG_FULL_MALLOC_INIT; 95 96 #ifndef CONFIG_SPL_NAND_BOOT 97 env_init(); 98 env_relocate(); 99 #else 100 /* relocate environment function pointers etc. */ 101 nand_spl_load_image(CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE, 102 (uchar *)CONFIG_ENV_ADDR); 103 gd->env_addr = (ulong)(CONFIG_ENV_ADDR); 104 gd->env_valid = 1; 105 #endif 106 107 i2c_init_all(); 108 109 puts("\n\n"); 110 111 gd->ram_size = initdram(0); 112 113 #ifdef CONFIG_SPL_NAND_BOOT 114 nand_boot(); 115 #endif 116 } 117