mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-10-07 06:42:08 +00:00
f68d0678c8
SPEAr600 SoC support contains basic spear600 support along with the usage of following drivers - serial driver(UART) - i2c driver - smi driver - nand driver(FSMC) - usbd driver Signed-off-by: Vipin <vipin.kumar@st.com>
171 lines
4.3 KiB
C
Executable file
171 lines
4.3 KiB
C
Executable file
/*
|
|
* (C) Copyright 2009
|
|
* Vipin Kumar, ST Micoelectronics, vipin.kumar@st.com.
|
|
*
|
|
* See file CREDITS for list of people who contributed to this
|
|
* project.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License as
|
|
* published by the Free Software Foundation; either version 2 of
|
|
* the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
|
|
* MA 02111-1307 USA
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <command.h>
|
|
#include <i2c.h>
|
|
#include <net.h>
|
|
#include <asm/io.h>
|
|
#include <asm/arch/hardware.h>
|
|
#include <asm/arch/spr_xloader_table.h>
|
|
#include <asm/arch/spr_defs.h>
|
|
|
|
#define CPU 0
|
|
#define DDR 1
|
|
#define SRAM_REL 0xD2801000
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
static struct chip_data chip_data;
|
|
|
|
int dram_init(void)
|
|
{
|
|
struct xloader_table *xloader_tb =
|
|
(struct xloader_table *)XLOADER_TABLE_ADDRESS;
|
|
struct xloader_table_1_1 *table_1_1;
|
|
struct xloader_table_1_2 *table_1_2;
|
|
struct chip_data *chip = &chip_data;
|
|
|
|
gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
|
|
gd->bd->bi_dram[0].size = get_ram_size(PHYS_SDRAM_1,
|
|
PHYS_SDRAM_1_MAXSIZE);
|
|
|
|
if (XLOADER_TABLE_VERSION_1_1 == xloader_tb->table_version) {
|
|
table_1_1 = &xloader_tb->table.table_1_1;
|
|
chip->dramfreq = table_1_1->ddrfreq;
|
|
chip->dramtype = table_1_1->ddrtype;
|
|
|
|
} else if (XLOADER_TABLE_VERSION_1_2 == xloader_tb->table_version) {
|
|
table_1_2 = &xloader_tb->table.table_1_2;
|
|
chip->dramfreq = table_1_2->ddrfreq;
|
|
chip->dramtype = table_1_2->ddrtype;
|
|
} else {
|
|
chip->dramfreq = -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int misc_init_r(void)
|
|
{
|
|
setenv("verify", "n");
|
|
|
|
#if defined(CONFIG_SPEAR_USBTTY)
|
|
setenv("stdin", "usbtty");
|
|
setenv("stdout", "usbtty");
|
|
setenv("stderr", "usbtty");
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
int spear_board_init(ulong mach_type)
|
|
{
|
|
struct xloader_table *xloader_tb =
|
|
(struct xloader_table *)XLOADER_TABLE_ADDRESS;
|
|
struct xloader_table_1_2 *table_1_2;
|
|
struct chip_data *chip = &chip_data;
|
|
|
|
gd->bd->bi_arch_number = mach_type;
|
|
|
|
/* adress of boot parameters */
|
|
gd->bd->bi_boot_params = CONFIG_BOOT_PARAMS_ADDR;
|
|
|
|
/* CPU is initialized to work at 333MHz in Xloader */
|
|
chip->cpufreq = 333;
|
|
|
|
if (XLOADER_TABLE_VERSION_1_2 == xloader_tb->table_version) {
|
|
table_1_2 = &xloader_tb->table.table_1_2;
|
|
memcpy(chip->version, table_1_2->version,
|
|
sizeof(chip->version));
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int do_chip_config(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
|
|
{
|
|
void (*sram_setfreq) (unsigned int, unsigned int);
|
|
struct chip_data *chip = &chip_data;
|
|
unsigned char mac[6];
|
|
unsigned int frequency;
|
|
|
|
if ((argc > 3) || (argc < 2)) {
|
|
cmd_usage(cmdtp);
|
|
return 1;
|
|
}
|
|
|
|
if ((!strcmp(argv[1], "cpufreq")) || (!strcmp(argv[1], "ddrfreq"))) {
|
|
|
|
frequency = simple_strtoul(argv[2], NULL, 0);
|
|
|
|
if (frequency > 333) {
|
|
printf("Frequency is limited to 333MHz\n");
|
|
return 1;
|
|
}
|
|
|
|
sram_setfreq = memcpy((void *)SRAM_REL, setfreq, setfreq_sz);
|
|
|
|
if (!strcmp(argv[1], "cpufreq")) {
|
|
sram_setfreq(CPU, frequency);
|
|
printf("CPU frequency changed to %u\n", frequency);
|
|
|
|
chip->cpufreq = frequency;
|
|
} else {
|
|
sram_setfreq(DDR, frequency);
|
|
printf("DDR frequency changed to %u\n", frequency);
|
|
|
|
chip->dramfreq = frequency;
|
|
}
|
|
|
|
return 0;
|
|
} else if (!strcmp(argv[1], "print")) {
|
|
|
|
if (chip->cpufreq == -1)
|
|
printf("CPU Freq = Not Known\n");
|
|
else
|
|
printf("CPU Freq = %d MHz\n", chip->cpufreq);
|
|
|
|
if (chip->dramfreq == -1)
|
|
printf("DDR Freq = Not Known\n");
|
|
else
|
|
printf("DDR Freq = %d MHz\n", chip->dramfreq);
|
|
|
|
if (chip->dramtype == DDRMOBILE)
|
|
printf("DDR Type = MOBILE\n");
|
|
else if (chip->dramtype == DDR2)
|
|
printf("DDR Type = DDR2\n");
|
|
else
|
|
printf("DDR Type = Not Known\n");
|
|
|
|
printf("Xloader Rev = %s\n", chip->version);
|
|
|
|
return 0;
|
|
}
|
|
|
|
cmd_usage(cmdtp);
|
|
return 1;
|
|
}
|
|
|
|
U_BOOT_CMD(chip_config, 3, 1, do_chip_config,
|
|
"configure chip",
|
|
"chip_config cpufreq/ddrfreq frequency\n"
|
|
"chip_config print");
|