mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-25 20:39:43 +09:00
83d290c56f
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>
166 lines
3.2 KiB
C
166 lines
3.2 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2016, STMicroelectronics - All Rights Reserved
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* Author(s): Vikas Manocha, <vikas.manocha@st.com> for STMicroelectronics.
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*/
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#include <common.h>
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#include <dm.h>
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#include <lcd.h>
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#include <ram.h>
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#include <spl.h>
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#include <splash.h>
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#include <st_logo_data.h>
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#include <video.h>
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#include <asm/io.h>
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#include <asm/armv7m.h>
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#include <asm/arch/stm32.h>
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#include <asm/arch/gpio.h>
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#include <asm/arch/syscfg.h>
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#include <asm/gpio.h>
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DECLARE_GLOBAL_DATA_PTR;
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int get_memory_base_size(fdt_addr_t *mr_base, fdt_addr_t *mr_size)
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{
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int mr_node;
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mr_node = fdt_path_offset(gd->fdt_blob, "/memory");
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if (mr_node < 0)
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return mr_node;
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*mr_base = fdtdec_get_addr_size_auto_noparent(gd->fdt_blob, mr_node,
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"reg", 0, mr_size, false);
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debug("mr_base = %lx, mr_size= %lx\n", *mr_base, *mr_size);
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return 0;
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}
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int dram_init(void)
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{
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int rv;
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fdt_addr_t mr_base, mr_size;
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#ifndef CONFIG_SUPPORT_SPL
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struct udevice *dev;
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rv = uclass_get_device(UCLASS_RAM, 0, &dev);
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if (rv) {
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debug("DRAM init failed: %d\n", rv);
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return rv;
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}
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#endif
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rv = get_memory_base_size(&mr_base, &mr_size);
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if (rv)
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return rv;
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gd->ram_size = mr_size;
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gd->ram_top = mr_base;
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return rv;
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}
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int dram_init_banksize(void)
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{
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fdt_addr_t mr_base, mr_size;
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get_memory_base_size(&mr_base, &mr_size);
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/*
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* Fill in global info with description of SRAM configuration
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*/
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gd->bd->bi_dram[0].start = mr_base;
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gd->bd->bi_dram[0].size = mr_size;
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return 0;
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}
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int board_early_init_f(void)
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{
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return 0;
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}
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#ifdef CONFIG_SPL_BUILD
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#ifdef CONFIG_SPL_OS_BOOT
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int spl_start_uboot(void)
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{
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debug("SPL: booting kernel\n");
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/* break into full u-boot on 'c' */
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return serial_tstc() && serial_getc() == 'c';
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}
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#endif
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int spl_dram_init(void)
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{
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struct udevice *dev;
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int rv;
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rv = uclass_get_device(UCLASS_RAM, 0, &dev);
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if (rv)
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debug("DRAM init failed: %d\n", rv);
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return rv;
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}
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void spl_board_init(void)
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{
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spl_dram_init();
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preloader_console_init();
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arch_cpu_init(); /* to configure mpu for sdram rw permissions */
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}
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u32 spl_boot_device(void)
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{
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return BOOT_DEVICE_XIP;
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}
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#endif
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u32 get_board_rev(void)
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{
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return 0;
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}
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int board_late_init(void)
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{
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struct gpio_desc gpio = {};
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int node;
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node = fdt_node_offset_by_compatible(gd->fdt_blob, 0, "st,led1");
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if (node < 0)
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return -1;
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gpio_request_by_name_nodev(offset_to_ofnode(node), "led-gpio", 0, &gpio,
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GPIOD_IS_OUT);
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if (dm_gpio_is_valid(&gpio)) {
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dm_gpio_set_value(&gpio, 0);
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mdelay(10);
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dm_gpio_set_value(&gpio, 1);
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}
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/* read button 1*/
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node = fdt_node_offset_by_compatible(gd->fdt_blob, 0, "st,button1");
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if (node < 0)
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return -1;
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gpio_request_by_name_nodev(offset_to_ofnode(node), "button-gpio", 0,
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&gpio, GPIOD_IS_IN);
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if (dm_gpio_is_valid(&gpio)) {
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if (dm_gpio_get_value(&gpio))
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puts("usr button is at HIGH LEVEL\n");
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else
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puts("usr button is at LOW LEVEL\n");
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}
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return 0;
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}
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int board_init(void)
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{
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gd->bd->bi_boot_params = gd->bd->bi_dram[0].start + 0x100;
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#ifdef CONFIG_ETH_DESIGNWARE
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/* Set >RMII mode */
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STM32_SYSCFG->pmc |= SYSCFG_PMC_MII_RMII_SEL;
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#endif
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#if defined(CONFIG_CMD_BMP)
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bmp_display((ulong)stmicroelectronics_uboot_logo_8bit_rle,
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BMP_ALIGN_CENTER, BMP_ALIGN_CENTER);
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#endif /* CONFIG_CMD_BMP */
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return 0;
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}
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