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