generic/starfive: Add Starfive JH7110 platform implementation

Add Starfive JH7110 platform implementation

Signed-off-by: Wei Liang Lim <weiliang.lim@starfivetech.com>
Reviewed-by: Chee Hong Ang <cheehong.ang@starfivetech.com>
Reviewed-by: Jun Liang Tan <junliang.tan@starfivetech.com>
Reviewed-by: Anup Patel <anup@brainfault.org>

diff --git a/platform/generic/Kconfig b/platform/generic/Kconfig
index 62c7a2d..47c10e5 100644 (file)
--- a/platform/generic/Kconfig
+++ b/platform/generic/Kconfig
@@ -45,4 +45,8 @@ config PLATFORM_SIFIVE_FU740
        depends on FDT_RESET && FDT_I2C
        default n
 
+config PLATFORM_STARFIVE_JH7110
+       bool "StarFive JH7110 support"
+       default n
+
 endif

diff --git a/platform/generic/configs/defconfig b/platform/generic/configs/defconfig
index 47fca95..4b0842e 100644 (file)
--- a/platform/generic/configs/defconfig
+++ b/platform/generic/configs/defconfig
@@ -3,6 +3,7 @@ CONFIG_PLATFORM_ANDES_AE350=y
 CONFIG_PLATFORM_RENESAS_RZFIVE=y
 CONFIG_PLATFORM_SIFIVE_FU540=y
 CONFIG_PLATFORM_SIFIVE_FU740=y
+CONFIG_PLATFORM_STARFIVE_JH7110=y
 CONFIG_FDT_GPIO=y
 CONFIG_FDT_GPIO_SIFIVE=y
 CONFIG_FDT_I2C=y

diff --git a/platform/generic/starfive/jh7110.c b/platform/generic/starfive/jh7110.c
new file mode 100644 (file)
index 0000000..c665658
--- /dev/null
+++ b/platform/generic/starfive/jh7110.c
@@ -0,0 +1,47 @@
+/*
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (c) 2022 StarFive
+ *
+ * Authors:
+ *   Wei Liang Lim <weiliang.lim@starfivetech.com>
+ */
+
+#include <libfdt.h>
+#include <platform_override.h>
+#include <sbi_utils/fdt/fdt_helper.h>
+
+static u32 selected_hartid = -1;
+
+static bool starfive_jh7110_cold_boot_allowed(u32 hartid,
+                                  const struct fdt_match *match)
+{
+       if (selected_hartid != -1)
+               return (selected_hartid == hartid);
+
+       return true;
+}
+
+static void starfive_jh7110_fw_init(void *fdt, const struct fdt_match *match)
+{
+       const fdt32_t *val;
+       int len, coff;
+
+       coff = fdt_path_offset(fdt, "/chosen");
+       if (-1 < coff) {
+               val = fdt_getprop(fdt, coff, "starfive,boot-hart-id", &len);
+               if (val && len >= sizeof(fdt32_t))
+                       selected_hartid = (u32) fdt32_to_cpu(*val);
+       }
+}
+
+static const struct fdt_match starfive_jh7110_match[] = {
+       { .compatible = "starfive,jh7110" },
+       { },
+};
+
+const struct platform_override starfive_jh7110 = {
+       .match_table = starfive_jh7110_match,
+       .cold_boot_allowed = starfive_jh7110_cold_boot_allowed,
+       .fw_init = starfive_jh7110_fw_init,
+};

diff --git a/platform/generic/starfive/objects.mk b/platform/generic/starfive/objects.mk
new file mode 100644 (file)
index 0000000..0b900fb
--- /dev/null
+++ b/platform/generic/starfive/objects.mk
@@ -0,0 +1,6 @@
+#
+# SPDX-License-Identifier: BSD-2-Clause
+#
+
+carray-platform_override_modules-$(CONFIG_PLATFORM_STARFIVE_JH7110) += starfive_jh7110
+platform-objs-$(CONFIG_PLATFORM_STARFIVE_JH7110) += starfive/jh7110.o