From 74a3460039854aa5694b8fae79af558b81d32e27 Mon Sep 17 00:00:00 2001
From: Hsin-Yi Wang <hsinyi@chromium.org>
Date: Thu, 27 Aug 2020 13:48:48 +0800
Subject: [PATCH] mediatek: Add jedec info

Add jedec info for mt8173, mt8183, and mt8192.

[1] http://www.softnology.biz/pdf/JEP106AV.pdf

Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
Change-Id: Iab36fd580131f0b09b27223fba0e9d1e187d9196
---
 plat/mediatek/common/mtk_plat_common.c      | 32 +++++++++++++++++++++
 plat/mediatek/common/mtk_plat_common.h      |  3 ++
 plat/mediatek/mt8173/include/platform_def.h |  2 ++
 plat/mediatek/mt8183/include/platform_def.h |  2 ++
 plat/mediatek/mt8192/include/platform_def.h |  2 ++
 5 files changed, 41 insertions(+)

diff --git a/plat/mediatek/common/mtk_plat_common.c b/plat/mediatek/common/mtk_plat_common.c
index a07a2981a..f57e4357d 100644
--- a/plat/mediatek/common/mtk_plat_common.c
+++ b/plat/mediatek/common/mtk_plat_common.c
@@ -10,8 +10,10 @@
 #include <drivers/arm/cci.h>
 #include <drivers/console.h>
 #include <lib/mmio.h>
+#include <lib/smccc.h>
 #include <lib/xlat_tables/xlat_tables.h>
 #include <plat/common/platform.h>
+#include <services/arm_arch_svc.h>
 
 #include <mtk_plat_common.h>
 #include <mtk_sip_svc.h>
@@ -116,3 +118,33 @@ uint32_t plat_get_spsr_for_bl33_entry(void)
 	spsr = SPSR_MODE32(mode, 0, ee, daif);
 	return spsr;
 }
+
+/*****************************************************************************
+ * plat_is_smccc_feature_available() - This function checks whether SMCCC
+ *                                     feature is availabile for platform.
+ * @fid: SMCCC function id
+ *
+ * Return SMC_OK if SMCCC feature is available and SMC_ARCH_CALL_NOT_SUPPORTED
+ * otherwise.
+ *****************************************************************************/
+int32_t plat_is_smccc_feature_available(u_register_t fid)
+{
+	switch (fid) {
+	case SMCCC_ARCH_SOC_ID:
+		return SMC_ARCH_CALL_SUCCESS;
+	default:
+		return SMC_ARCH_CALL_NOT_SUPPORTED;
+	}
+}
+
+int32_t plat_get_soc_version(void)
+{
+	uint32_t manfid = (JEDEC_MTK_BKID << 24U) | (JEDEC_MTK_MFID << 16U);
+
+	return (int32_t)(manfid | (SOC_CHIP_ID & 0xFFFFU));
+}
+
+int32_t plat_get_soc_revision(void)
+{
+	return 0;
+}
diff --git a/plat/mediatek/common/mtk_plat_common.h b/plat/mediatek/common/mtk_plat_common.h
index 55f4c516e..919c17358 100644
--- a/plat/mediatek/common/mtk_plat_common.h
+++ b/plat/mediatek/common/mtk_plat_common.h
@@ -18,6 +18,9 @@
 #define LINUX_KERNEL_32 0
 #define SMC32_PARAM_MASK		(0xFFFFFFFF)
 
+#define JEDEC_MTK_BKID U(4)
+#define JEDEC_MTK_MFID U(0x26)
+
 struct atf_arg_t {
 	unsigned int atf_magic;
 	unsigned int tee_support;
diff --git a/plat/mediatek/mt8173/include/platform_def.h b/plat/mediatek/mt8173/include/platform_def.h
index 22129db13..d34042218 100644
--- a/plat/mediatek/mt8173/include/platform_def.h
+++ b/plat/mediatek/mt8173/include/platform_def.h
@@ -51,6 +51,8 @@
 					 PLATFORM_CLUSTER_COUNT +	\
 					 PLATFORM_CORE_COUNT)
 
+#define SOC_CHIP_ID                     U(0x8173)
+
 /*******************************************************************************
  * Platform memory map related constants
  ******************************************************************************/
diff --git a/plat/mediatek/mt8183/include/platform_def.h b/plat/mediatek/mt8183/include/platform_def.h
index 49a0f805e..25ccfbc52 100644
--- a/plat/mediatek/mt8183/include/platform_def.h
+++ b/plat/mediatek/mt8183/include/platform_def.h
@@ -279,6 +279,8 @@ INTR_PROP_DESC(MT_IRQ_SEC_SGI_7, GIC_HIGHEST_SEC_PRIORITY, grp, \
 					 PLATFORM_CLUSTER_COUNT + \
 					 PLATFORM_CORE_COUNT)
 
+#define SOC_CHIP_ID                     U(0x8183)
+
 /*******************************************************************************
  * Platform memory map related constants
  ******************************************************************************/
diff --git a/plat/mediatek/mt8192/include/platform_def.h b/plat/mediatek/mt8192/include/platform_def.h
index e1f0faf60..f68015a97 100644
--- a/plat/mediatek/mt8192/include/platform_def.h
+++ b/plat/mediatek/mt8192/include/platform_def.h
@@ -59,6 +59,8 @@
 #define PLATFORM_CORE_COUNT             (PLATFORM_CLUSTER0_CORE_COUNT)
 #define PLATFORM_MAX_CPUS_PER_CLUSTER   U(8)
 
+#define SOC_CHIP_ID			U(0x8192)
+
 /*******************************************************************************
  * Platform memory map related constants
  ******************************************************************************/