u-boot/board/BuS/eb_cpu5282/eb_cpu5282.c
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

265 lines
5.4 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2005-2009
* BuS Elektronik GmbH & Co.KG <esw@bus-elektonik.de>
*
* (C) Copyright 2000-2003
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*/
#include <common.h>
#include <command.h>
#include "asm/m5282.h"
#include <bmp_layout.h>
#include <status_led.h>
#include <bus_vcxk.h>
/*---------------------------------------------------------------------------*/
DECLARE_GLOBAL_DATA_PTR;
#ifdef CONFIG_VIDEO
unsigned long display_width;
unsigned long display_height;
#endif
/*---------------------------------------------------------------------------*/
int checkboard (void)
{
puts("Board: EB+CPU5282 (BuS Elektronik GmbH & Co. KG)\n");
#if (CONFIG_SYS_TEXT_BASE == CONFIG_SYS_INT_FLASH_BASE)
puts(" Boot from Internal FLASH\n");
#endif
return 0;
}
int dram_init(void)
{
int size, i;
size = 0;
MCFSDRAMC_DCR = MCFSDRAMC_DCR_RTIM_6 |
MCFSDRAMC_DCR_RC((15 * CONFIG_SYS_CLK / 1000000) >> 4);
asm (" nop");
#ifdef CONFIG_SYS_SDRAM_BASE0
MCFSDRAMC_DACR0 = MCFSDRAMC_DACR_BASE(CONFIG_SYS_SDRAM_BASE0)|
MCFSDRAMC_DACR_CASL(1) | MCFSDRAMC_DACR_CBM(3) |
MCFSDRAMC_DACR_PS_32;
asm (" nop");
MCFSDRAMC_DMR0 = MCFSDRAMC_DMR_BAM_16M | MCFSDRAMC_DMR_V;
asm (" nop");
MCFSDRAMC_DACR0 |= MCFSDRAMC_DACR_IP;
asm (" nop");
for (i = 0; i < 10; i++)
asm (" nop");
*(unsigned long *)(CONFIG_SYS_SDRAM_BASE0) = 0xA5A5A5A5;
asm (" nop");
MCFSDRAMC_DACR0 |= MCFSDRAMC_DACR_RE;
asm (" nop");
for (i = 0; i < 2000; i++)
asm (" nop");
MCFSDRAMC_DACR0 |= MCFSDRAMC_DACR_IMRS;
asm (" nop");
/* write SDRAM mode register */
*(unsigned long *)(CONFIG_SYS_SDRAM_BASE0 + 0x80440) = 0xA5A5A5A5;
asm (" nop");
size += CONFIG_SYS_SDRAM_SIZE0 * 1024 * 1024;
#endif
#ifdef CONFIG_SYS_SDRAM_BASE1xx
MCFSDRAMC_DACR1 = MCFSDRAMC_DACR_BASE (CONFIG_SYS_SDRAM_BASE1)
| MCFSDRAMC_DACR_CASL (1)
| MCFSDRAMC_DACR_CBM (3)
| MCFSDRAMC_DACR_PS_16;
MCFSDRAMC_DMR1 = MCFSDRAMC_DMR_BAM_16M | MCFSDRAMC_DMR_V;
MCFSDRAMC_DACR1 |= MCFSDRAMC_DACR_IP;
*(unsigned short *) (CONFIG_SYS_SDRAM_BASE1) = 0xA5A5;
MCFSDRAMC_DACR1 |= MCFSDRAMC_DACR_RE;
for (i = 0; i < 2000; i++)
asm (" nop");
MCFSDRAMC_DACR1 |= MCFSDRAMC_DACR_IMRS;
*(unsigned int *) (CONFIG_SYS_SDRAM_BASE1 + 0x220) = 0xA5A5;
size += CONFIG_SYS_SDRAM_SIZE1 * 1024 * 1024;
#endif
gd->ram_size = 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;
printf("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;
}
}
printf("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;
}
}
printf("SDRAM test passed.\n");
return 0;
}
#endif
#if defined(CONFIG_HW_WATCHDOG)
void hw_watchdog_init(void)
{
char *s;
int enable;
enable = 1;
s = env_get("watchdog");
if (s != NULL)
if ((strncmp(s, "off", 3) == 0) || (strncmp(s, "0", 1) == 0))
enable = 0;
if (enable)
MCFGPTA_GPTDDR |= (1<<2);
else
MCFGPTA_GPTDDR &= ~(1<<2);
}
void hw_watchdog_reset(void)
{
MCFGPTA_GPTPORT ^= (1<<2);
}
#endif
int misc_init_r(void)
{
#ifdef CONFIG_HW_WATCHDOG
hw_watchdog_init();
#endif
return 1;
}
void __led_toggle(led_id_t mask)
{
MCFGPTA_GPTPORT ^= (1 << 3);
}
void __led_init(led_id_t mask, int state)
{
__led_set(mask, state);
MCFGPTA_GPTDDR |= (1 << 3);
}
void __led_set(led_id_t mask, int state)
{
if (state == CONFIG_LED_STATUS_ON)
MCFGPTA_GPTPORT |= (1 << 3);
else
MCFGPTA_GPTPORT &= ~(1 << 3);
}
#if defined(CONFIG_VIDEO)
int drv_video_init(void)
{
char *s;
#ifdef CONFIG_SPLASH_SCREEN
unsigned long splash;
#endif
printf("Init Video as ");
s = env_get("displaywidth");
if (s != NULL)
display_width = simple_strtoul(s, NULL, 10);
else
display_width = 256;
s = env_get("displayheight");
if (s != NULL)
display_height = simple_strtoul(s, NULL, 10);
else
display_height = 256;
printf("%lu x %lu pixel matrix\n", display_width, display_height);
MCFCCM_CCR &= ~MCFCCM_CCR_SZEN;
MCFGPIO_PEPAR &= ~MCFGPIO_PEPAR_PEPA2;
vcxk_init(display_width, display_height);
#ifdef CONFIG_SPLASH_SCREEN
s = env_get("splashimage");
if (s != NULL) {
splash = simple_strtoul(s, NULL, 16);
vcxk_acknowledge_wait();
video_display_bitmap(splash, 0, 0);
}
#endif
return 0;
}
#endif
/*---------------------------------------------------------------------------*/
#ifdef CONFIG_VIDEO
int do_brightness(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
int rcode = 0;
ulong side;
ulong bright;
switch (argc) {
case 3:
side = simple_strtoul(argv[1], NULL, 10);
bright = simple_strtoul(argv[2], NULL, 10);
if ((side >= 0) && (side <= 3) &&
(bright >= 0) && (bright <= 1000)) {
vcxk_setbrightness(side, bright);
rcode = 0;
} else {
printf("parameters out of range\n");
printf("Usage:\n%s\n", cmdtp->usage);
rcode = 1;
}
break;
default:
printf("Usage:\n%s\n", cmdtp->usage);
rcode = 1;
break;
}
return rcode;
}
/*---------------------------------------------------------------------------*/
U_BOOT_CMD(
bright, 3, 0, do_brightness,
"sets the display brightness\n",
" <side> <0..1000>\n side: 0/3=both; 1=first; 2=second\n"
);
#endif
/* EOF EB+MCF-EV123.c */