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.t...@nxp.com>
---
v2:
- use micro to replace hardcoded number
arch/arm/cpu/armv8/fsl-layerscape/fdt.c | 23 +++++++++++++++++++
.../arm/include/asm/arch-fsl-layerscape/soc.h | 3 +++
2 files changed, 26 insertions(+)
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/fdt.c
b/arch/arm/cpu/armv8/fsl-layerscape/fdt.c
index 19917b207a..e993209593 100644
--- a/arch/arm/cpu/armv8/fsl-layerscape/fdt.c
+++ b/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
}
diff --git a/arch/arm/include/asm/arch-fsl-layerscape/soc.h
b/arch/arm/include/asm/arch-fsl-layerscape/soc.h
index 234440b5fe..485ea66591 100644
--- a/arch/arm/include/asm/arch-fsl-layerscape/soc.h
+++ b/arch/arm/include/asm/arch-fsl-layerscape/soc.h
@@ -112,6 +112,9 @@ 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)
--
2.17.1
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