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JetHub D2 (j200) add u-boot 2024.01 patches
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adeepn authored and igorpecovnik committed Jun 13, 2024
1 parent d068492 commit 24938ad
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Original file line number Diff line number Diff line change
@@ -0,0 +1,218 @@
From 166c1ab03acbfaafd90d2013eda6ff0a84ab0a91 Mon Sep 17 00:00:00 2001
From: Viacheslav Bocharov <[email protected]>
Date: Tue, 31 Oct 2023 12:16:43 +0300
Subject: [PATCH 1/2] Add some amlogic sm functions

---
arch/arm/include/asm/arch-meson/sm.h | 18 ++++++++++
arch/arm/mach-meson/sm.c | 41 +++++++++++++++++++++++
cmd/meson/sm.c | 49 +++++++++++++++++++++++++++-
drivers/sm/meson-sm.c | 1 +
include/meson/sm.h | 1 +
5 files changed, 109 insertions(+), 1 deletion(-)

diff --git a/arch/arm/include/asm/arch-meson/sm.h b/arch/arm/include/asm/arch-meson/sm.h
index 4b1d564bc4..57ab90ab1c 100644
--- a/arch/arm/include/asm/arch-meson/sm.h
+++ b/arch/arm/include/asm/arch-meson/sm.h
@@ -26,7 +26,16 @@ ssize_t meson_sm_read_efuse(uintptr_t offset, void *buffer, size_t size);
*/
ssize_t meson_sm_write_efuse(uintptr_t offset, void *buffer, size_t size);

+/**
+ * meson_sm_getmax - get max size of user efuse
+ * @buffer: pointer to buffer
+ * @size: buffer size
+ * @return: size of user efuse or -errno on failure
+ */
+ssize_t meson_sm_getmax(void *buffer, size_t size);
+
#define SM_SERIAL_SIZE 12
+#define SM_SERIAL2_SIZE 16

/**
* meson_sm_get_serial - read chip unique id into buffer
@@ -37,6 +46,15 @@ ssize_t meson_sm_write_efuse(uintptr_t offset, void *buffer, size_t size);
*/
int meson_sm_get_serial(void *buffer, size_t size);

+/**
+ * meson_sm_get_serial2 - read chip unique id (ver.2) into buffer
+ *
+ * @buffer: pointer to buffer
+ * @size: buffer size.
+ * @return: zero on success or -errno on failure
+ */
+int meson_sm_get_serial2(void *buffer, size_t size);
+
enum {
REBOOT_REASON_COLD = 0,
REBOOT_REASON_NORMAL = 1,
diff --git a/arch/arm/mach-meson/sm.c b/arch/arm/mach-meson/sm.c
index 914fd11c98..6f4861a30c 100644
--- a/arch/arm/mach-meson/sm.c
+++ b/arch/arm/mach-meson/sm.c
@@ -77,7 +77,26 @@ ssize_t meson_sm_write_efuse(uintptr_t offset, void *buffer, size_t size)
return err;
}

+ssize_t meson_sm_getmax(void *buffer, size_t size)
+{
+ struct udevice *dev;
+ struct pt_regs regs = { 0 };
+ int err;
+
+ dev = meson_get_sm_device();
+ if (IS_ERR(dev))
+ return PTR_ERR(dev);
+
+ err = sm_call_read(dev, buffer, size,
+ MESON_SMC_CMD_EFUSE_MAX, &regs);
+ if (err < 0)
+ pr_err("Failed to read max size of efuse memory (%d)\n", err);
+
+ return err;
+}
+
#define SM_CHIP_ID_LENGTH 119
+#define SM_CHIP_ID_LENGTH2 128
#define SM_CHIP_ID_OFFSET 4
#define SM_CHIP_ID_SIZE 12

@@ -102,6 +121,28 @@ int meson_sm_get_serial(void *buffer, size_t size)
return 0;
}

+int meson_sm_get_serial2(void *buffer, size_t size)
+{
+ struct udevice *dev;
+ struct pt_regs regs = { 0 };
+ regs.regs[1] = 2;
+ u8 id_buffer[SM_CHIP_ID_LENGTH2];
+ int err;
+
+ dev = meson_get_sm_device();
+ if (IS_ERR(dev))
+ return PTR_ERR(dev);
+
+ err = sm_call_read(dev, id_buffer, SM_CHIP_ID_LENGTH,
+ MESON_SMC_CMD_CHIP_ID_GET, &regs);
+ if (err < 0)
+ pr_err("Failed to read serial number (%d)\n", err);
+
+ memcpy(buffer, id_buffer + SM_CHIP_ID_OFFSET, size);
+
+ return 0;
+}
+
#define AO_SEC_SD_CFG15 0xfc
#define REBOOT_REASON_MASK GENMASK(15, 12)

diff --git a/cmd/meson/sm.c b/cmd/meson/sm.c
index de9a242e17..faa7240621 100644
--- a/cmd/meson/sm.c
+++ b/cmd/meson/sm.c
@@ -33,6 +33,25 @@ static int do_sm_serial(struct cmd_tbl *cmdtp, int flag, int argc,
return CMD_RET_SUCCESS;
}

+static int do_sm_serialv2(struct cmd_tbl *cmdtp, int flag, int argc,
+ char *const argv[])
+{
+ ulong address;
+ int ret;
+
+ if (argc < 2)
+ return CMD_RET_USAGE;
+
+ address = simple_strtoul(argv[1], NULL, 0);
+
+ ret = meson_sm_get_serial2((void *)address, SM_SERIAL2_SIZE);
+ if (ret)
+ return CMD_RET_FAILURE;
+
+ return CMD_RET_SUCCESS;
+}
+
+
#define MAX_REBOOT_REASONS 14

static const char *reboot_reasons[MAX_REBOOT_REASONS] = {
@@ -152,12 +171,38 @@ free_buffer:
return ret;
}

+static int do_efuse_getmax(struct cmd_tbl *cmdtp, int flag, int argc,
+ char *const argv[])
+{
+ char efusesizeprint[32]; // this covers int64 (2^64), which is 20 digits long
+ char *destarg = NULL;
+ int efusesize;
+
+ if (argc > 1)
+ destarg = argv[1];
+
+ efusesize = meson_sm_getmax(NULL, 0); // TODO: check if this is correct
+ if (efusesize < 0)
+ return CMD_RET_FAILURE;
+
+ snprintf(efusesizeprint, sizeof(efusesizeprint), "%d", efusesize);
+ if (destarg)
+ env_set(destarg, efusesizeprint);
+ else
+ printf("%s\n", efusesizeprint);
+
+ return CMD_RET_SUCCESS;
+}
+
static struct cmd_tbl cmd_sm_sub[] = {
U_BOOT_CMD_MKENT(serial, 2, 1, do_sm_serial, "", ""),
+ U_BOOT_CMD_MKENT(serialv2, 2, 1, do_sm_serialv2, "", ""),
U_BOOT_CMD_MKENT(reboot_reason, 1, 1, do_sm_reboot_reason, "", ""),
U_BOOT_CMD_MKENT(efuseread, 4, 1, do_efuse_read, "", ""),
U_BOOT_CMD_MKENT(efusewrite, 4, 0, do_efuse_write, "", ""),
U_BOOT_CMD_MKENT(efusedump, 3, 1, do_efuse_dump, "", ""),
+ U_BOOT_CMD_MKENT(getmax, 2, 1, do_efuse_getmax, "", ""),
+
};

static int do_sm(struct cmd_tbl *cmdtp, int flag, int argc,
@@ -184,8 +229,10 @@ U_BOOT_CMD(
sm, 5, 0, do_sm,
"Secure Monitor Control",
"serial <address> - read chip unique id to memory address\n"
+ "serialv2 <address> - read chip unique id (ver 2) to memory address\n"
"sm reboot_reason [name] - get reboot reason and store to environment\n"
"sm efuseread <offset> <size> <address> - read efuse to memory address\n"
"sm efusewrite <offset> <size> <address> - write into efuse from memory address\n"
- "sm efusedump <offset> <size> - dump efuse data range to console"
+ "sm efusedump <offset> <size> - dump efuse data range to console\n"
+ "sm getmax [name] - get max size of user accesible efuse and store to environment\n"
);
diff --git a/drivers/sm/meson-sm.c b/drivers/sm/meson-sm.c
index 15b3b0e267..c98af83a67 100644
--- a/drivers/sm/meson-sm.c
+++ b/drivers/sm/meson-sm.c
@@ -167,6 +167,7 @@ static const struct meson_sm_data meson_sm_gxbb_data = {
.cmd_get_shmem_out = 0x82000021,
.shmem_size = SZ_4K,
.cmd = {
+ SET_CMD(MESON_SMC_CMD_EFUSE_MAX, 0x82000033),
SET_CMD(MESON_SMC_CMD_EFUSE_READ, 0x82000030),
SET_CMD(MESON_SMC_CMD_EFUSE_WRITE, 0x82000031),
SET_CMD(MESON_SMC_CMD_CHIP_ID_GET, 0x82000044),
diff --git a/include/meson/sm.h b/include/meson/sm.h
index fbaab1f1ee..99da308fb9 100644
--- a/include/meson/sm.h
+++ b/include/meson/sm.h
@@ -9,6 +9,7 @@
#define __MESON_SM_CMD_H__

enum meson_smc_cmd {
+ MESON_SMC_CMD_EFUSE_MAX, /* get max size of user efuse */
MESON_SMC_CMD_EFUSE_READ, /* read efuse memory */
MESON_SMC_CMD_EFUSE_WRITE, /* write efuse memory */
MESON_SMC_CMD_CHIP_ID_GET, /* readh chip unique id */
--
2.34.1

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