From 9e597927cab51c7a6b3cb5a896065f5951a2f637 Mon Sep 17 00:00:00 2001
From: SamulKyull <SamulKyull@SamulKyull.xyz>
Date: Thu, 1 May 2025 11:10:02 +0800
Subject: [PATCH] [chip] add chip a537 a333

---
 chips/a537_a333.c | 98 +++++++++++++++++++++++++++++++++++++++++++++++
 fel.c             |  2 +
 2 files changed, 100 insertions(+)
 create mode 100644 chips/a537_a333.c

diff --git a/chips/a537_a333.c b/chips/a537_a333.c
new file mode 100644
index 0000000..aafa0af
--- /dev/null
+++ b/chips/a537_a333.c
@@ -0,0 +1,98 @@
+#include <fel.h>
+
+static int chip_detect(struct xfel_ctx_t * ctx, uint32_t id)
+{
+	if(id == 0x00191900)
+		return 1;
+	return 0;
+}
+
+static uint32_t payload_read32(struct xfel_ctx_t * ctx, uint32_t addr)
+{
+	static const uint8_t payload[] = {
+		0x00, 0x00, 0xa0, 0xe3, 0x17, 0x0f, 0x08, 0xee, 0x15, 0x0f, 0x07, 0xee,
+		0xd5, 0x0f, 0x07, 0xee, 0x9a, 0x0f, 0x07, 0xee, 0x95, 0x0f, 0x07, 0xee,
+		0xff, 0xff, 0xff, 0xea, 0x0c, 0x00, 0x9f, 0xe5, 0x0c, 0x10, 0x8f, 0xe2,
+		0x00, 0x20, 0x90, 0xe5, 0x00, 0x20, 0x81, 0xe5, 0x1e, 0xff, 0x2f, 0xe1,
+	};
+	uint32_t adr = cpu_to_le32(addr);
+	uint32_t val;
+
+	fel_write(ctx, ctx->version.scratchpad, (void *)payload, sizeof(payload));
+	fel_write(ctx, ctx->version.scratchpad + sizeof(payload), (void *)&adr, sizeof(adr));
+	fel_exec(ctx, ctx->version.scratchpad);
+	fel_read(ctx, ctx->version.scratchpad + sizeof(payload) + sizeof(adr), (void *)&val, sizeof(val));
+	return le32_to_cpu(val);
+}
+
+static void payload_write32(struct xfel_ctx_t * ctx, uint32_t addr, uint32_t val)
+{
+	static const uint8_t payload[] = {
+		0x00, 0x00, 0xa0, 0xe3, 0x17, 0x0f, 0x08, 0xee, 0x15, 0x0f, 0x07, 0xee,
+		0xd5, 0x0f, 0x07, 0xee, 0x9a, 0x0f, 0x07, 0xee, 0x95, 0x0f, 0x07, 0xee,
+		0xff, 0xff, 0xff, 0xea, 0x08, 0x00, 0x9f, 0xe5, 0x08, 0x10, 0x9f, 0xe5,
+		0x00, 0x10, 0x80, 0xe5, 0x1e, 0xff, 0x2f, 0xe1,
+	};
+	uint32_t params[2] = {
+		cpu_to_le32(addr),
+		cpu_to_le32(val),
+	};
+
+	fel_write(ctx, ctx->version.scratchpad, (void *)payload, sizeof(payload));
+	fel_write(ctx, ctx->version.scratchpad + sizeof(payload), (void *)params, sizeof(params));
+	fel_exec(ctx, ctx->version.scratchpad);
+}
+
+static int chip_reset(struct xfel_ctx_t * ctx)
+{
+	return 0;
+}
+
+static int chip_sid(struct xfel_ctx_t * ctx, char * sid)
+{
+	uint32_t id[4];
+
+	id[0] = payload_read32(ctx, 0x03006200 + 0x0);
+	id[1] = payload_read32(ctx, 0x03006200 + 0x4);
+	id[2] = payload_read32(ctx, 0x03006200 + 0x8);
+	id[3] = payload_read32(ctx, 0x03006200 + 0xc);
+	sprintf(sid, "%08x%08x%08x%08x", id[0], id[1], id[2], id[3]);
+	return 1;
+}
+
+static int chip_jtag(struct xfel_ctx_t * ctx)
+{
+	return 0;
+}
+
+static int chip_ddr(struct xfel_ctx_t * ctx, const char * type)
+{
+	return 0;
+}
+
+static int chip_spi_init(struct xfel_ctx_t * ctx, uint32_t * swapbuf, uint32_t * swaplen, uint32_t * cmdlen)
+{
+	return 0;
+}
+
+static int chip_spi_run(struct xfel_ctx_t * ctx, uint8_t * cbuf, uint32_t clen)
+{
+	return 0;
+}
+
+static int chip_extra(struct xfel_ctx_t * ctx, int argc, char * argv[])
+{
+	return 0;
+}
+
+struct chip_t a537_a333 = {
+	.name = "A537/A333",
+	.detect = chip_detect,
+	.reset = chip_reset,
+	.sid = chip_sid,
+	.jtag = chip_jtag,
+	.ddr = chip_ddr,
+	.spi_init = chip_spi_init,
+	.spi_run = chip_spi_run,
+	.extra = chip_extra,
+};
diff --git a/fel.c b/fel.c
index ad8e7a1..8c7b33c 100644
--- a/fel.c
+++ b/fel.c
@@ -30,6 +30,7 @@ extern struct chip_t v851_v853;
 extern struct chip_t v821;
 extern struct chip_t a733;
 extern struct chip_t t536;
+extern struct chip_t a537_a333;
 
 
 static struct chip_t * chips[] = {
@@ -63,6 +64,7 @@ static struct chip_t * chips[] = {
 	&v821,
 	&a733,
 	&t536,
+	&a537_a333,
 };
 
 struct usb_request_t {