[PATCH master] ARM: i.MX8M: bootrom: fix load image size

[Marco Felsch <m.felsch@pengutronix.de>]

Without the proper aligned image size we may encounter host load errors
like:

| found i.MX8MP USB device [1fc9:0146]
| No dcd table in this ivt
| dl_command err=-1, last_trans=-1
| 4 in err=-4, last_trans=0  00 00 00 00

The reason for this is that we asked only for the required bytes while
the host tries to send the complete image which may contain alignment
bytes at the end.

Fix this by request always 4K aligned sizes.

Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
---
 arch/arm/mach-imx/romapi.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm/mach-imx/romapi.c b/arch/arm/mach-imx/romapi.c
index aef0ff0534c9..972a1bf427de 100644
--- a/arch/arm/mach-imx/romapi.c
+++ b/arch/arm/mach-imx/romapi.c
@@ -4,6 +4,7 @@
 
 #include <common.h>
 #include <asm/sections.h>
+#include <linux/sizes.h>
 #include <mach/imx/romapi.h>
 #include <mach/imx/atf.h>
 #include <mach/imx/imx8m-regs.h>
@@ -16,6 +17,12 @@
 
 static int imx8m_bootrom_load(struct rom_api *rom_api, void *adr, size_t size)
 {
+	/*
+	 * The imx-image tool align the final image size to 4K so we need to
+	 * take this into account.
+	 */
+	size = ALIGN(size, SZ_4K);
+
 	while (size) {
 		size_t chunksize = min(size, (size_t)1024);
 		int ret;
-- 
2.39.2