[PATCH v3 2/3] lib: utils/timer: mtimer: add separate T-Head C9xx CLINT mtimer compatible

[Inochi Amaoto]

T-HEAD allows soc vendor to map the mtimer and mswi of C9xx clint on
different address, which may cause a misuse if use the same compatible
string, add a new timer compatible string to avoid this.

Signed-off-by: Inochi Amaoto <inochiama at outlook.com>
Link: https://lore.kernel.org/linux-riscv/6e48cbe5e60f9ada2fd1fe58e803e127f1a678e5.1696433229.git.unicorn_wang@outlook.com/
Reviewed-by: Guo Ren <guoren at kernel.org>
---
 lib/utils/timer/fdt_timer_mtimer.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/lib/utils/timer/fdt_timer_mtimer.c b/lib/utils/timer/fdt_timer_mtimer.c
index 29560fb..86ad1aa 100644
--- a/lib/utils/timer/fdt_timer_mtimer.c
+++ b/lib/utils/timer/fdt_timer_mtimer.c
@@ -145,10 +145,17 @@ static const struct timer_mtimer_quirks thead_clint_quirks = {
 	.without_mtime  = true,
 };
 
+static const struct timer_mtimer_quirks thead_aclint_quirks = {
+	.has_64bit_mmio	= false,
+	.custom_aclint	= true,
+};
+
 static const struct fdt_match timer_mtimer_match[] = {
 	{ .compatible = "riscv,clint0", .data = &sifive_clint_quirks },
 	{ .compatible = "sifive,clint0", .data = &sifive_clint_quirks },
 	{ .compatible = "thead,c900-clint", .data = &thead_clint_quirks },
+	{ .compatible = "thead,c900-aclint-mtimer",
+	  .data = &thead_aclint_quirks },
 	{ .compatible = "riscv,aclint-mtimer" },
 	{ },
 };
-- 
2.42.1