From 93e2da36ed944d05e78905e95983a44624ed064c Mon Sep 17 00:00:00 2001 From: Strahinja Jankovic Date: Mon, 21 Nov 2022 11:45:12 +0000 Subject: hw/sd: Fix sun4i allwinner-sdhost for U-Boot Trying to run U-Boot for Cubieboard (Allwinner A10) fails because it cannot access SD card. The problem is that FIFO register in current allwinner-sdhost implementation is at the address corresponding to Allwinner H3, but not A10. Linux kernel is not affected since Linux driver uses DMA access and does not use FIFO register for reading/writing. This patch adds new class parameter `is_sun4i` and based on that parameter uses register at offset 0x100 either as FIFO register (if sun4i) or as threshold register (if not sun4i; in this case register at 0x200 is FIFO register). Tested with U-Boot and Linux kernel image built for Cubieboard and OrangePi PC. Signed-off-by: Strahinja Jankovic Reviewed-by: Peter Maydell Message-id: 20221112214900.24152-1-strahinja.p.jankovic@gmail.com Signed-off-by: Peter Maydell --- include/hw/sd/allwinner-sdhost.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/hw/sd/allwinner-sdhost.h b/include/hw/sd/allwinner-sdhost.h index bfe08ff..30c1e60 100644 --- a/include/hw/sd/allwinner-sdhost.h +++ b/include/hw/sd/allwinner-sdhost.h @@ -130,6 +130,7 @@ struct AwSdHostClass { /** Maximum buffer size in bytes per DMA descriptor */ size_t max_desc_size; + bool is_sun4i; }; -- cgit v1.1