[PATCH v1 9/9] verdin-imx8mm: automatic ram size detection

Igor Opaniuk igor.opaniuk at gmail.com
Wed Oct 28 10:58:16 CET 2020


From: Marcel Ziswiler <marcel.ziswiler at toradex.com>

Implement board_phys_sdram_size() to automatically detect Verdin iMX8M
Mini DualLite 1GB vs. Verdin iMX8M Mini Quad 2GB.

Note: This only works if we keep using similar RAM chips!

Signed-off-by: Marcel Ziswiler <marcel.ziswiler at toradex.com>
---

 board/toradex/verdin-imx8mm/verdin-imx8mm.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/board/toradex/verdin-imx8mm/verdin-imx8mm.c b/board/toradex/verdin-imx8mm/verdin-imx8mm.c
index 9c6f35e778..7cfae8767c 100644
--- a/board/toradex/verdin-imx8mm/verdin-imx8mm.c
+++ b/board/toradex/verdin-imx8mm/verdin-imx8mm.c
@@ -180,6 +180,16 @@ int board_late_init(void)
 	return 0;
 }
 
+int board_phys_sdram_size(phys_size_t *size)
+{
+	if (!size)
+		return -EINVAL;
+
+	*size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE);
+
+	return 0;
+}
+
 #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
 int ft_board_setup(void *blob, struct bd_info *bd)
 {
-- 
2.17.1



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