mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-10-03 12:52:07 +00:00
2f80a9f72e
All discovery boards have one user button & one user LED. Here we are just reading the button status & switching ON the user LED. Signed-off-by: Vikas Manocha <vikas.manocha@st.com> cc: Christophe KERELLO <christophe.kerello@st.com>
117 lines
2.1 KiB
C
117 lines
2.1 KiB
C
/*
|
|
* (C) Copyright 2016
|
|
* Vikas Manocha, <vikas.manocha@st.com>
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <dm.h>
|
|
#include <ram.h>
|
|
#include <asm/io.h>
|
|
#include <asm/armv7m.h>
|
|
#include <asm/arch/stm32.h>
|
|
#include <asm/arch/gpio.h>
|
|
#include <dm/platdata.h>
|
|
#include <dm/platform_data/serial_stm32x7.h>
|
|
#include <asm/arch/stm32_periph.h>
|
|
#include <asm/arch/stm32_defs.h>
|
|
#include <asm/arch/syscfg.h>
|
|
#include <asm/gpio.h>
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
int dram_init(void)
|
|
{
|
|
struct udevice *dev;
|
|
struct ram_info ram;
|
|
int rv;
|
|
|
|
rv = uclass_get_device(UCLASS_RAM, 0, &dev);
|
|
if (rv) {
|
|
debug("DRAM init failed: %d\n", rv);
|
|
return rv;
|
|
}
|
|
rv = ram_get_info(dev, &ram);
|
|
if (rv) {
|
|
debug("Cannot get DRAM size: %d\n", rv);
|
|
return rv;
|
|
}
|
|
debug("SDRAM base=%lx, size=%x\n", ram.base, ram.size);
|
|
gd->ram_size = ram.size;
|
|
|
|
/*
|
|
* Fill in global info with description of SRAM configuration
|
|
*/
|
|
gd->bd->bi_dram[0].start = CONFIG_SYS_RAM_BASE;
|
|
gd->bd->bi_dram[0].size = ram.size;
|
|
|
|
return rv;
|
|
}
|
|
|
|
#ifdef CONFIG_ETH_DESIGNWARE
|
|
static int stmmac_setup(void)
|
|
{
|
|
clock_setup(SYSCFG_CLOCK_CFG);
|
|
/* Set >RMII mode */
|
|
STM32_SYSCFG->pmc |= SYSCFG_PMC_MII_RMII_SEL;
|
|
clock_setup(STMMAC_CLOCK_CFG);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int board_early_init_f(void)
|
|
{
|
|
stmmac_setup();
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
u32 get_board_rev(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
int board_late_init(void)
|
|
{
|
|
struct gpio_desc gpio = {};
|
|
int node;
|
|
|
|
node = fdt_node_offset_by_compatible(gd->fdt_blob, 0, "st,led1");
|
|
if (node < 0)
|
|
return -1;
|
|
|
|
gpio_request_by_name_nodev(gd->fdt_blob, node, "led-gpio", 0, &gpio,
|
|
GPIOD_IS_OUT);
|
|
|
|
if (dm_gpio_is_valid(&gpio)) {
|
|
dm_gpio_set_value(&gpio, 0);
|
|
mdelay(10);
|
|
dm_gpio_set_value(&gpio, 1);
|
|
}
|
|
|
|
/* read button 1*/
|
|
node = fdt_node_offset_by_compatible(gd->fdt_blob, 0, "st,button1");
|
|
if (node < 0)
|
|
return -1;
|
|
|
|
gpio_request_by_name_nodev(gd->fdt_blob, node, "button-gpio", 0, &gpio,
|
|
GPIOD_IS_IN);
|
|
|
|
if (dm_gpio_is_valid(&gpio)) {
|
|
if (dm_gpio_get_value(&gpio))
|
|
puts("usr button is at HIGH LEVEL\n");
|
|
else
|
|
puts("usr button is at LOW LEVEL\n");
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int board_init(void)
|
|
{
|
|
gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
|
|
|
|
return 0;
|
|
}
|