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armv8: ls1028a: disable multimedia for ls1027a, ls1017a

ls1028a has 4 personalities: ls1028a, ls1027a, ls1017a and ls1018a.
Both ls1027a and ls1017a personalities are lower functionality version
which doesn't support the multimedia subsystems, like LCD, GPU.

To disable multimedia feature on non-multimedia version,
set the status property to disabled in dts nodes.

Signed-off-by: Tang Yuantian <andy.tang@nxp.com>
Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
Yuantian Tang 4 years ago
parent
commit
54d5c06cb9

+ 23 - 0
arch/arm/cpu/armv8/fsl-layerscape/fdt.c

@@ -401,6 +401,26 @@ void fdt_fixup_remove_jr(void *blob)
 }
 #endif
 
+#ifdef CONFIG_ARCH_LS1028A
+static void fdt_disable_multimedia(void *blob, unsigned int svr)
+{
+	int off;
+
+	if (IS_MULTIMEDIA_EN(svr))
+		return;
+
+	/* Disable eDP/LCD node */
+	off = fdt_node_offset_by_compatible(blob, -1, "arm,mali-dp500");
+	if (off != -FDT_ERR_NOTFOUND)
+		fdt_status_disabled(blob, off);
+
+	/* Disable GPU node */
+	off = fdt_node_offset_by_compatible(blob, -1, "fsl,ls1028a-gpu");
+	if (off != -FDT_ERR_NOTFOUND)
+		fdt_status_disabled(blob, off);
+}
+#endif
+
 void ft_cpu_setup(void *blob, bd_t *bd)
 {
 	struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
@@ -462,4 +482,7 @@ void ft_cpu_setup(void *blob, bd_t *bd)
 #ifdef CONFIG_HAS_FEATURE_ENHANCED_MSI
 	fdt_fixup_msi(blob);
 #endif
+#ifdef CONFIG_ARCH_LS1028A
+	fdt_disable_multimedia(blob, svr);
+#endif
 }

+ 3 - 0
arch/arm/include/asm/arch-fsl-layerscape/soc.h

@@ -115,6 +115,9 @@ enum boot_src get_boot_src(void);
 #ifdef CONFIG_ARCH_LX2160A
 #define IS_C_PROCESSOR(svr)	(!((svr >> 12) & 0x1))
 #endif
+#ifdef CONFIG_ARCH_LS1028A
+#define IS_MULTIMEDIA_EN(svr)	(!((svr >> 10) & 0x1))
+#endif
 #define IS_SVR_REV(svr, maj, min) \
 		((SVR_MAJ(svr) == (maj)) && (SVR_MIN(svr) == (min)))
 #define SVR_DEV(svr)		((svr) >> 8)