mirror of
https://source.denx.de/u-boot/u-boot.git
synced 2026-06-13 15:03:58 +03:00
cde43f9bbd
Add a couple of functions to look up the segment and part name using SIP calls. These will be used to print more accurate CPU information in print_cpuinfo(). Reviewed-by: Macpaul Lin <macpaul.lin@mediatek.com> Link: https://patch.msgid.link/20260330-mtk-mt8189-cpu-type-v1-1-4059c3b52761@baylibre.com Signed-off-by: David Lechner <dlechner@baylibre.com>
79 lines
1.7 KiB
C
79 lines
1.7 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* Copyright (C) 2018 MediaTek Inc.
|
|
*/
|
|
|
|
#include <cpu_func.h>
|
|
#include <dm.h>
|
|
#include <init.h>
|
|
#include <wdt.h>
|
|
#include <dm/uclass-internal.h>
|
|
#include <linux/arm-smccc.h>
|
|
#include <linux/types.h>
|
|
|
|
#define MTK_SIP_PLAT_BINFO ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL, ARM_SMCCC_SMC_64, \
|
|
ARM_SMCCC_OWNER_SIP, 0x529)
|
|
|
|
int arch_cpu_init(void)
|
|
{
|
|
icache_enable();
|
|
|
|
return 0;
|
|
}
|
|
|
|
void enable_caches(void)
|
|
{
|
|
/* Enable D-cache. I-cache is already enabled in start.S */
|
|
dcache_enable();
|
|
}
|
|
|
|
/**
|
|
* mediatek_sip_part_name - get the part name
|
|
*
|
|
* Retrieve the part name of platform description.
|
|
*
|
|
* This only applicable to SoCs that support SIP plat binfo SMC call.
|
|
*
|
|
* Returns: the part name or 0 if error or no part name
|
|
*/
|
|
u32 mediatek_sip_part_name(void)
|
|
{
|
|
if (CONFIG_IS_ENABLED(TARGET_MT8188) || CONFIG_IS_ENABLED(TARGET_MT8189) ||
|
|
CONFIG_IS_ENABLED(TARGET_MT8195) || CONFIG_IS_ENABLED(TARGET_MT8365)) {
|
|
struct arm_smccc_res res __maybe_unused;
|
|
|
|
arm_smccc_smc(MTK_SIP_PLAT_BINFO, 0, 0, 0, 0, 0, 0, 0, &res);
|
|
if (res.a0)
|
|
return 0;
|
|
|
|
return res.a1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* mediatek_sip_segment_name - get the segment name
|
|
*
|
|
* Retrieve the segment name of platform description.
|
|
*
|
|
* This only applicable to SoCs that support SIP plat binfo SMC call.
|
|
*
|
|
* Returns: the segment name or 0 if error or no segment name
|
|
*/
|
|
u32 mediatek_sip_segment_name(void)
|
|
{
|
|
if (CONFIG_IS_ENABLED(TARGET_MT8188) || CONFIG_IS_ENABLED(TARGET_MT8189) ||
|
|
CONFIG_IS_ENABLED(TARGET_MT8195) || CONFIG_IS_ENABLED(TARGET_MT8365)) {
|
|
struct arm_smccc_res res __maybe_unused;
|
|
|
|
arm_smccc_smc(MTK_SIP_PLAT_BINFO, 1, 0, 0, 0, 0, 0, 0, &res);
|
|
if (res.a0)
|
|
return 0;
|
|
|
|
return res.a1;
|
|
}
|
|
|
|
return 0;
|
|
}
|