1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright 2007 Wind River Systemes, Inc. <www.windriver.com>
4 * Copyright 2007 Embedded Specialties, Inc.
5 * Joe Hamman joe.hamman@embeddedspecialties.com
7 * Copyright 2004 Freescale Semiconductor.
9 * Srikanth Srinivasan (srikanth.srinivasan@freescale.com)
11 * (C) Copyright 2002 Scott McNutt <smcnutt@artesyncp.com>
19 #include <asm/processor.h>
20 #include <asm/immap_86xx.h>
21 #include <asm/fsl_pci.h>
22 #include <fsl_ddr_sdram.h>
23 #include <asm/fsl_serdes.h>
24 #include <linux/delay.h>
25 #include <linux/libfdt.h>
26 #include <fdt_support.h>
28 DECLARE_GLOBAL_DATA_PTR;
30 long int fixed_sdram (void);
32 int board_early_init_f (void)
39 puts ("Board: Wind River SBC8641D\n");
48 #if defined(CONFIG_SPD_EEPROM)
49 dram_size = fsl_ddr_sdram();
51 dram_size = fixed_sdram ();
55 gd->ram_size = dram_size;
60 #if defined(CONFIG_SYS_DRAM_TEST)
63 uint *pstart = (uint *) CONFIG_SYS_MEMTEST_START;
64 uint *pend = (uint *) CONFIG_SYS_MEMTEST_END;
67 puts ("SDRAM test phase 1:\n");
68 for (p = pstart; p < pend; p++)
71 for (p = pstart; p < pend; p++) {
72 if (*p != 0xaaaaaaaa) {
73 printf ("SDRAM test fails at: %08x\n", (uint) p);
78 puts ("SDRAM test phase 2:\n");
79 for (p = pstart; p < pend; p++)
82 for (p = pstart; p < pend; p++) {
83 if (*p != 0x55555555) {
84 printf ("SDRAM test fails at: %08x\n", (uint) p);
89 puts ("SDRAM test passed.\n");
94 #if !defined(CONFIG_SPD_EEPROM)
96 * Fixed sdram init -- doesn't use serial presence detect.
98 long int fixed_sdram (void)
100 #if !defined(CONFIG_SYS_RAMBOOT)
101 volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
102 volatile struct ccsr_ddr *ddr = &immap->im_ddr1;
104 ddr->cs0_bnds = CONFIG_SYS_DDR_CS0_BNDS;
105 ddr->cs1_bnds = CONFIG_SYS_DDR_CS1_BNDS;
106 ddr->cs2_bnds = CONFIG_SYS_DDR_CS2_BNDS;
107 ddr->cs3_bnds = CONFIG_SYS_DDR_CS3_BNDS;
108 ddr->cs0_config = CONFIG_SYS_DDR_CS0_CONFIG;
109 ddr->cs1_config = CONFIG_SYS_DDR_CS1_CONFIG;
110 ddr->cs2_config = CONFIG_SYS_DDR_CS2_CONFIG;
111 ddr->cs3_config = CONFIG_SYS_DDR_CS3_CONFIG;
112 ddr->timing_cfg_3 = CONFIG_SYS_DDR_TIMING_3;
113 ddr->timing_cfg_0 = CONFIG_SYS_DDR_TIMING_0;
114 ddr->timing_cfg_1 = CONFIG_SYS_DDR_TIMING_1;
115 ddr->timing_cfg_2 = CONFIG_SYS_DDR_TIMING_2;
116 ddr->sdram_cfg = CONFIG_SYS_DDR_CFG_1A;
117 ddr->sdram_cfg_2 = CONFIG_SYS_DDR_CFG_2;
118 ddr->sdram_mode = CONFIG_SYS_DDR_MODE_1;
119 ddr->sdram_mode_2 = CONFIG_SYS_DDR_MODE_2;
120 ddr->sdram_md_cntl = CONFIG_SYS_DDR_MODE_CTL;
121 ddr->sdram_interval = CONFIG_SYS_DDR_INTERVAL;
122 ddr->sdram_data_init = CONFIG_SYS_DDR_DATA_INIT;
123 ddr->sdram_clk_cntl = CONFIG_SYS_DDR_CLK_CTRL;
129 ddr->sdram_cfg = CONFIG_SYS_DDR_CFG_1B;
133 ddr = &immap->im_ddr2;
135 ddr->cs0_bnds = CONFIG_SYS_DDR2_CS0_BNDS;
136 ddr->cs1_bnds = CONFIG_SYS_DDR2_CS1_BNDS;
137 ddr->cs2_bnds = CONFIG_SYS_DDR2_CS2_BNDS;
138 ddr->cs3_bnds = CONFIG_SYS_DDR2_CS3_BNDS;
139 ddr->cs0_config = CONFIG_SYS_DDR2_CS0_CONFIG;
140 ddr->cs1_config = CONFIG_SYS_DDR2_CS1_CONFIG;
141 ddr->cs2_config = CONFIG_SYS_DDR2_CS2_CONFIG;
142 ddr->cs3_config = CONFIG_SYS_DDR2_CS3_CONFIG;
143 ddr->timing_cfg_3 = CONFIG_SYS_DDR2_EXT_REFRESH;
144 ddr->timing_cfg_0 = CONFIG_SYS_DDR2_TIMING_0;
145 ddr->timing_cfg_1 = CONFIG_SYS_DDR2_TIMING_1;
146 ddr->timing_cfg_2 = CONFIG_SYS_DDR2_TIMING_2;
147 ddr->sdram_cfg = CONFIG_SYS_DDR2_CFG_1A;
148 ddr->sdram_cfg_2 = CONFIG_SYS_DDR2_CFG_2;
149 ddr->sdram_mode = CONFIG_SYS_DDR2_MODE_1;
150 ddr->sdram_mode_2 = CONFIG_SYS_DDR2_MODE_2;
151 ddr->sdram_md_cntl = CONFIG_SYS_DDR2_MODE_CTL;
152 ddr->sdram_interval = CONFIG_SYS_DDR2_INTERVAL;
153 ddr->sdram_data_init = CONFIG_SYS_DDR2_DATA_INIT;
154 ddr->sdram_clk_cntl = CONFIG_SYS_DDR2_CLK_CTRL;
160 ddr->sdram_cfg = CONFIG_SYS_DDR2_CFG_1B;
165 return CONFIG_SYS_SDRAM_SIZE * 1024 * 1024;
167 #endif /* !defined(CONFIG_SPD_EEPROM) */
169 #if defined(CONFIG_PCI)
171 * Initialize PCI Devices, report devices found.
174 void pci_init_board(void)
176 fsl_pcie_init_board(0);
178 #endif /* CONFIG_PCI */
181 #if defined(CONFIG_OF_BOARD_SETUP)
182 int ft_board_setup(void *blob, bd_t *bd)
184 ft_cpu_setup(blob, bd);
192 void sbc8641d_reset_board (void)
194 puts ("Resetting board....\n");
199 * Clock is fixed at 1GHz on this board. Used for CONFIG_SYS_CLK_FREQ
202 unsigned long get_board_sys_clk (ulong dummy)
240 void board_reset(void)
242 #ifdef CONFIG_SYS_RESET_ADDRESS
243 ulong addr = CONFIG_SYS_RESET_ADDRESS;
245 /* flush and disable I/D cache */
246 __asm__ __volatile__ ("mfspr 3, 1008" ::: "r3");
247 __asm__ __volatile__ ("ori 5, 5, 0xcc00" ::: "r5");
248 __asm__ __volatile__ ("ori 4, 3, 0xc00" ::: "r4");
249 __asm__ __volatile__ ("andc 5, 3, 5" ::: "r5");
250 __asm__ __volatile__ ("sync");
251 __asm__ __volatile__ ("mtspr 1008, 4");
252 __asm__ __volatile__ ("isync");
253 __asm__ __volatile__ ("sync");
254 __asm__ __volatile__ ("mtspr 1008, 5");
255 __asm__ __volatile__ ("isync");
256 __asm__ __volatile__ ("sync");
259 * SRR0 has system reset vector, SRR1 has default MSR value
260 * rfi restores MSR from SRR1 and sets the PC to the SRR0 value
262 __asm__ __volatile__ ("mtspr 26, %0" :: "r" (addr));
263 __asm__ __volatile__ ("li 4, (1 << 6)" ::: "r4");
264 __asm__ __volatile__ ("mtspr 27, 4");
265 __asm__ __volatile__ ("rfi");