rockchip: rk3399: do not generate u-boot.rom anymore

This was only used on RK3399 Gru Chromebooks and their maintainer
(Simon) agreed[1] to its removal on the basis that the generic
u-boot-rockchip-spi.bin is now enough, so let's do that.

At the same time, remove HAS_ROM symbol from the Gru Chromebooks config
since they were used only for that.

Make sure u-boot-rockchip-spi.bin has the same size of u-boot.rom for
Chromebooks as that seems to be important.

[1] https://lore.kernel.org/u-boot/CAFLszTh-SewFod8dEOF3+e-wCE1qFF0CyxxR8CbQwy3BRW3k6w@mail.gmail.com/

Reviewed-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Tested-by: Simon Glass <sjg@chromium.org>  # chromebook-kevin
Signed-off-by: Quentin Schulz <quentin.schulz@cherry.de>
diff --git a/arch/arm/dts/rk3399-gru-u-boot.dtsi b/arch/arm/dts/rk3399-gru-u-boot.dtsi
index 5517176..dfc7be4 100644
--- a/arch/arm/dts/rk3399-gru-u-boot.dtsi
+++ b/arch/arm/dts/rk3399-gru-u-boot.dtsi
@@ -15,11 +15,13 @@
 	};
 };
 
+#if defined(CONFIG_ROCKCHIP_SPI_IMAGE)
 &binman {
-	rom {
+	simple-bin-spi {
 		size = <0x800000>;
 	};
 };
+#endif
 
 &cros_ec {
 	ec-interrupt = <&gpio0 RK_PA1 GPIO_ACTIVE_LOW>;
diff --git a/arch/arm/dts/rk3399-u-boot.dtsi b/arch/arm/dts/rk3399-u-boot.dtsi
index 70f35b6..587eef9 100644
--- a/arch/arm/dts/rk3399-u-boot.dtsi
+++ b/arch/arm/dts/rk3399-u-boot.dtsi
@@ -29,41 +29,6 @@
 	};
 };
 
-#if defined(CONFIG_ROCKCHIP_SPI_IMAGE) && defined(CONFIG_HAS_ROM)
-&binman {
-	multiple-images;
-	rom {
-		filename = "u-boot.rom";
-		size = <0x400000>;
-		pad-byte = <0xff>;
-
-		mkimage {
-			args = "-n rk3399 -T rkspi";
-			multiple-data-files;
-#ifdef CONFIG_ROCKCHIP_EXTERNAL_TPL
-			rockchip-tpl {
-			};
-#elif defined(CONFIG_TPL)
-			u-boot-tpl {
-			};
-#endif
-			u-boot-spl {
-			};
-		};
-		fit {
-			type = "blob";
-			filename = "u-boot.itb";
-			offset = <CONFIG_SYS_SPI_U_BOOT_OFFS>;
-		};
-		u-boot {
-			offset = <0x300000>;
-		};
-		fdtmap {
-		};
-	};
-};
-#endif /* CONFIG_ROCKCHIP_SPI_IMAGE && CONFIG_HAS_ROM */
-
 &cru {
 	bootph-all;
 };
diff --git a/arch/arm/mach-rockchip/rk3399/Kconfig b/arch/arm/mach-rockchip/rk3399/Kconfig
index b243020..5c21b08 100644
--- a/arch/arm/mach-rockchip/rk3399/Kconfig
+++ b/arch/arm/mach-rockchip/rk3399/Kconfig
@@ -5,7 +5,6 @@
 
 config TARGET_CHROMEBOOK_BOB
 	bool "Asus Flip C101PA Chromebook (RK3399)"
-	select HAS_ROM
 	select ROCKCHIP_SPI_IMAGE
 	help
 	  Bob is a small RK3299-based device similar in apperance to Minnie.
@@ -16,7 +15,6 @@
 
 config TARGET_CHROMEBOOK_KEVIN
 	bool "Samsung Chromebook Plus (RK3399)"
-	select HAS_ROM
 	select ROCKCHIP_SPI_IMAGE
 	help
 	  Kevin is a RK3399-based convertible chromebook. It has two USB 3.0