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common: Drop net.h from common header
[J-u-boot.git] / arch / arm / mach-lpc32xx / cpu.c
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83d290c5 1// SPDX-License-Identifier: GPL-2.0+
52f69f81 2/*
576007ae 3 * Copyright (C) 2011-2015 by Vladimir Zapolskiy <[email protected]>
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4 */
5
6#include <common.h>
1eb69ae4 7#include <cpu_func.h>
90526e9f 8#include <net.h>
ac2916a2 9#include <netdev.h>
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10#include <asm/arch/cpu.h>
11#include <asm/arch/clk.h>
12#include <asm/arch/wdt.h>
412ae53a 13#include <asm/arch/sys_proto.h>
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14#include <asm/io.h>
15
16static struct clk_pm_regs *clk = (struct clk_pm_regs *)CLK_PM_BASE;
17static struct wdt_regs *wdt = (struct wdt_regs *)WDT_BASE;
18
19void reset_cpu(ulong addr)
20{
21 /* Enable watchdog clock */
22 setbits_le32(&clk->timclk_ctrl, CLK_TIMCLK_WATCHDOG);
23
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24 /* To be compatible with the original U-Boot code:
25 * addr: - 0: perform hard reset.
26 * - !=0: perform a soft reset; i.e. "RESOUT_N" not asserted). */
27 if (addr == 0) {
28 /* Reset pulse length is 13005 peripheral clock frames */
29 writel(13000, &wdt->pulse);
52f69f81 30
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31 /* Force WDOG_RESET2 and RESOUT_N signal active */
32 writel(WDTIM_MCTRL_RESFRC2 | WDTIM_MCTRL_RESFRC1
33 | WDTIM_MCTRL_M_RES2, &wdt->mctrl);
34 } else {
35 /* Force match output active */
36 writel(0x01, &wdt->emr);
37
38 /* Internal reset on match output (no pulse on "RESOUT_N") */
39 writel(WDTIM_MCTRL_M_RES1, &wdt->mctrl);
40 }
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41
42 while (1)
43 /* NOP */;
44}
45
46#if defined(CONFIG_ARCH_CPU_INIT)
47int arch_cpu_init(void)
48{
49 /*
a187559e 50 * It might be necessary to flush data cache, if U-Boot is loaded
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51 * from kickstart bootloader, e.g. from S1L loader
52 */
53 flush_dcache_all();
54
55 return 0;
56}
57#else
58#error "You have to select CONFIG_ARCH_CPU_INIT"
59#endif
60
61#if defined(CONFIG_DISPLAY_CPUINFO)
62int print_cpuinfo(void)
63{
64 printf("CPU: NXP LPC32XX\n");
65 printf("CPU clock: %uMHz\n", get_hclk_pll_rate() / 1000000);
66 printf("AHB bus clock: %uMHz\n", get_hclk_clk_rate() / 1000000);
67 printf("Peripheral clock: %uMHz\n", get_periph_clk_rate() / 1000000);
68
69 return 0;
70}
71#endif
ac2916a2
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72
73#ifdef CONFIG_LPC32XX_ETH
74int cpu_eth_init(bd_t *bis)
75{
76 lpc32xx_eth_initialize(bis);
77 return 0;
78}
79#endif
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