mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-12 14:23:00 +00:00
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>
77 lines
1.8 KiB
C
77 lines
1.8 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2011-2015 by Vladimir Zapolskiy <vz@mleia.com>
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*/
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#include <common.h>
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#include <netdev.h>
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#include <asm/arch/cpu.h>
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#include <asm/arch/clk.h>
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#include <asm/arch/wdt.h>
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#include <asm/arch/sys_proto.h>
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#include <asm/io.h>
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static struct clk_pm_regs *clk = (struct clk_pm_regs *)CLK_PM_BASE;
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static struct wdt_regs *wdt = (struct wdt_regs *)WDT_BASE;
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void reset_cpu(ulong addr)
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{
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/* Enable watchdog clock */
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setbits_le32(&clk->timclk_ctrl, CLK_TIMCLK_WATCHDOG);
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/* To be compatible with the original U-Boot code:
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* addr: - 0: perform hard reset.
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* - !=0: perform a soft reset; i.e. "RESOUT_N" not asserted). */
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if (addr == 0) {
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/* Reset pulse length is 13005 peripheral clock frames */
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writel(13000, &wdt->pulse);
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/* Force WDOG_RESET2 and RESOUT_N signal active */
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writel(WDTIM_MCTRL_RESFRC2 | WDTIM_MCTRL_RESFRC1
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| WDTIM_MCTRL_M_RES2, &wdt->mctrl);
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} else {
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/* Force match output active */
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writel(0x01, &wdt->emr);
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/* Internal reset on match output (no pulse on "RESOUT_N") */
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writel(WDTIM_MCTRL_M_RES1, &wdt->mctrl);
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}
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while (1)
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/* NOP */;
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}
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#if defined(CONFIG_ARCH_CPU_INIT)
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int arch_cpu_init(void)
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{
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/*
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* It might be necessary to flush data cache, if U-Boot is loaded
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* from kickstart bootloader, e.g. from S1L loader
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*/
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flush_dcache_all();
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return 0;
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}
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#else
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#error "You have to select CONFIG_ARCH_CPU_INIT"
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#endif
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#if defined(CONFIG_DISPLAY_CPUINFO)
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int print_cpuinfo(void)
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{
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printf("CPU: NXP LPC32XX\n");
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printf("CPU clock: %uMHz\n", get_hclk_pll_rate() / 1000000);
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printf("AHB bus clock: %uMHz\n", get_hclk_clk_rate() / 1000000);
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printf("Peripheral clock: %uMHz\n", get_periph_clk_rate() / 1000000);
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return 0;
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}
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#endif
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#ifdef CONFIG_LPC32XX_ETH
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int cpu_eth_init(bd_t *bis)
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{
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lpc32xx_eth_initialize(bis);
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return 0;
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}
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#endif
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