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/*
* Copyright 2007 Wind River Systemes, Inc. <www.windriver.com>
* Copyright 2007 Embedded Specialties, Inc.
* Joe Hamman joe.hamman@embeddedspecialties.com
*
* Copyright 2004 Freescale Semiconductor.
* Jeff Brown
* Srikanth Srinivasan (srikanth.srinivasan@freescale.com)
*
* (C) Copyright 2002 Scott McNutt <smcnutt@artesyncp.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <command.h>
#include <pci.h>
#include <asm/processor.h>
#include <asm/immap_86xx.h>
#include <asm/fsl_pci.h>
#include <fsl_ddr_sdram.h>
#include <asm/fsl_serdes.h>
#include <linux/libfdt.h>
#include <fdt_support.h>
DECLARE_GLOBAL_DATA_PTR;
long int fixed_sdram (void);
int board_early_init_f (void)
{
return 0;
}
int checkboard (void)
{
puts ("Board: Wind River SBC8641D\n");
return 0;
}
int dram_init(void)
{
long dram_size = 0;
#if defined(CONFIG_SPD_EEPROM)
dram_size = fsl_ddr_sdram();
#else
dram_size = fixed_sdram ();
#endif
debug (" DDR: ");
gd->ram_size = dram_size;
return 0;
}
#if defined(CONFIG_SYS_DRAM_TEST)
int testdram (void)
{
uint *pstart = (uint *) CONFIG_SYS_MEMTEST_START;
uint *pend = (uint *) CONFIG_SYS_MEMTEST_END;
uint *p;
puts ("SDRAM test phase 1:\n");
for (p = pstart; p < pend; p++)
*p = 0xaaaaaaaa;
for (p = pstart; p < pend; p++) {
if (*p != 0xaaaaaaaa) {
printf ("SDRAM test fails at: %08x\n", (uint) p);
return 1;
}
}
puts ("SDRAM test phase 2:\n");
for (p = pstart; p < pend; p++)
*p = 0x55555555;
for (p = pstart; p < pend; p++) {
if (*p != 0x55555555) {
printf ("SDRAM test fails at: %08x\n", (uint) p);
return 1;
}
}
puts ("SDRAM test passed.\n");
return 0;
}
#endif
#if !defined(CONFIG_SPD_EEPROM)
/*
* Fixed sdram init -- doesn't use serial presence detect.
*/
long int fixed_sdram (void)
{
#if !defined(CONFIG_SYS_RAMBOOT)
volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
volatile struct ccsr_ddr *ddr = &immap->im_ddr1;
ddr->cs0_bnds = CONFIG_SYS_DDR_CS0_BNDS;
ddr->cs1_bnds = CONFIG_SYS_DDR_CS1_BNDS;
ddr->cs2_bnds = CONFIG_SYS_DDR_CS2_BNDS;
ddr->cs3_bnds = CONFIG_SYS_DDR_CS3_BNDS;
ddr->cs0_config = CONFIG_SYS_DDR_CS0_CONFIG;
ddr->cs1_config = CONFIG_SYS_DDR_CS1_CONFIG;
ddr->cs2_config = CONFIG_SYS_DDR_CS2_CONFIG;
ddr->cs3_config = CONFIG_SYS_DDR_CS3_CONFIG;
ddr->timing_cfg_3 = CONFIG_SYS_DDR_TIMING_3;
ddr->timing_cfg_0 = CONFIG_SYS_DDR_TIMING_0;
ddr->timing_cfg_1 = CONFIG_SYS_DDR_TIMING_1;
ddr->timing_cfg_2 = CONFIG_SYS_DDR_TIMING_2;
ddr->sdram_cfg = CONFIG_SYS_DDR_CFG_1A;
ddr->sdram_cfg_2 = CONFIG_SYS_DDR_CFG_2;
ddr->sdram_mode = CONFIG_SYS_DDR_MODE_1;
ddr->sdram_mode_2 = CONFIG_SYS_DDR_MODE_2;
ddr->sdram_md_cntl = CONFIG_SYS_DDR_MODE_CTL;
ddr->sdram_interval = CONFIG_SYS_DDR_INTERVAL;
ddr->sdram_data_init = CONFIG_SYS_DDR_DATA_INIT;
ddr->sdram_clk_cntl = CONFIG_SYS_DDR_CLK_CTRL;
asm ("sync;isync");
udelay (500);
ddr->sdram_cfg = CONFIG_SYS_DDR_CFG_1B;
asm ("sync; isync");
udelay (500);
ddr = &immap->im_ddr2;
ddr->cs0_bnds = CONFIG_SYS_DDR2_CS0_BNDS;
ddr->cs1_bnds = CONFIG_SYS_DDR2_CS1_BNDS;
ddr->cs2_bnds = CONFIG_SYS_DDR2_CS2_BNDS;
ddr->cs3_bnds = CONFIG_SYS_DDR2_CS3_BNDS;
ddr->cs0_config = CONFIG_SYS_DDR2_CS0_CONFIG;
ddr->cs1_config = CONFIG_SYS_DDR2_CS1_CONFIG;
ddr->cs2_config = CONFIG_SYS_DDR2_CS2_CONFIG;
ddr->cs3_config = CONFIG_SYS_DDR2_CS3_CONFIG;
ddr->timing_cfg_3 = CONFIG_SYS_DDR2_EXT_REFRESH;
ddr->timing_cfg_0 = CONFIG_SYS_DDR2_TIMING_0;
ddr->timing_cfg_1 = CONFIG_SYS_DDR2_TIMING_1;
ddr->timing_cfg_2 = CONFIG_SYS_DDR2_TIMING_2;
ddr->sdram_cfg = CONFIG_SYS_DDR2_CFG_1A;
ddr->sdram_cfg_2 = CONFIG_SYS_DDR2_CFG_2;
ddr->sdram_mode = CONFIG_SYS_DDR2_MODE_1;
ddr->sdram_mode_2 = CONFIG_SYS_DDR2_MODE_2;
ddr->sdram_md_cntl = CONFIG_SYS_DDR2_MODE_CTL;
ddr->sdram_interval = CONFIG_SYS_DDR2_INTERVAL;
ddr->sdram_data_init = CONFIG_SYS_DDR2_DATA_INIT;
ddr->sdram_clk_cntl = CONFIG_SYS_DDR2_CLK_CTRL;
asm ("sync;isync");
udelay (500);
ddr->sdram_cfg = CONFIG_SYS_DDR2_CFG_1B;
asm ("sync; isync");
udelay (500);
#endif
return CONFIG_SYS_SDRAM_SIZE * 1024 * 1024;
}
#endif /* !defined(CONFIG_SPD_EEPROM) */
#if defined(CONFIG_PCI)
/*
* Initialize PCI Devices, report devices found.
*/
void pci_init_board(void)
{
fsl_pcie_init_board(0);
}
#endif /* CONFIG_PCI */
#if defined(CONFIG_OF_BOARD_SETUP)
int ft_board_setup(void *blob, bd_t *bd)
{
ft_cpu_setup(blob, bd);
FT_FSL_PCI_SETUP;
return 0;
}
#endif
void sbc8641d_reset_board (void)
{
puts ("Resetting board....\n");
}
/*
* get_board_sys_clk
* Clock is fixed at 1GHz on this board. Used for CONFIG_SYS_CLK_FREQ
*/
unsigned long get_board_sys_clk (ulong dummy)
{
int i;
ulong val = 0;
i = 5;
i &= 0x07;
switch (i) {
case 0:
val = 33000000;
break;
case 1:
val = 40000000;
break;
case 2:
val = 50000000;
break;
case 3:
val = 66000000;
break;
case 4:
val = 83000000;
break;
case 5:
val = 100000000;
break;
case 6:
val = 134000000;
break;
case 7:
val = 166000000;
break;
}
return val;
}
void board_reset(void)
{
#ifdef CONFIG_SYS_RESET_ADDRESS
ulong addr = CONFIG_SYS_RESET_ADDRESS;
/* flush and disable I/D cache */
__asm__ __volatile__ ("mfspr 3, 1008" ::: "r3");
__asm__ __volatile__ ("ori 5, 5, 0xcc00" ::: "r5");
__asm__ __volatile__ ("ori 4, 3, 0xc00" ::: "r4");
__asm__ __volatile__ ("andc 5, 3, 5" ::: "r5");
__asm__ __volatile__ ("sync");
__asm__ __volatile__ ("mtspr 1008, 4");
__asm__ __volatile__ ("isync");
__asm__ __volatile__ ("sync");
__asm__ __volatile__ ("mtspr 1008, 5");
__asm__ __volatile__ ("isync");
__asm__ __volatile__ ("sync");
/*
* SRR0 has system reset vector, SRR1 has default MSR value
* rfi restores MSR from SRR1 and sets the PC to the SRR0 value
*/
__asm__ __volatile__ ("mtspr 26, %0" :: "r" (addr));
__asm__ __volatile__ ("li 4, (1 << 6)" ::: "r4");
__asm__ __volatile__ ("mtspr 27, 4");
__asm__ __volatile__ ("rfi");
#endif
}
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