mirror of
https://github.com/AsahiLinux/u-boot
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20759b2973
For now, this only provides reset and poweroff functions. Signed-off-by: Michael Walle <michael@walle.cc> [Rebased] Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
42 lines
687 B
C
42 lines
687 B
C
// SPDX-License-Identifier: GPL-2.0+
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#include <asm/secure.h>
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#include <asm/psci.h>
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#include <asm/types.h>
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#include <asm/io.h>
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#include <asm/system.h>
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#define GPIO2_GPDIR 0x2310000
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#define GPIO2_GPDAT 0x2310008
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#define RSTCR 0x1e60000
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#define RESET_REQ BIT(1)
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u32 __secure psci_version(void)
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{
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return ARM_PSCI_VER_0_2;
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}
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void __secure psci_system_reset(void)
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{
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writel(RESET_REQ, RSTCR);
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while (1)
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wfi();
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}
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void __secure psci_system_off(void)
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{
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int i;
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writel(0x02000000, GPIO2_GPDIR);
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writel(0, GPIO2_GPDAT);
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/* make sure the management controller has sampled the input */
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for (i = 0; i < (1 << 11); i++)
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asm("nop");
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writel(RESET_REQ, RSTCR);
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while (1)
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wfi();
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}
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