From: Yuantian Tang andy.tang@nxp.com

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: Wen He wen.he_1@nxp.com --- arch/arm/cpu/armv8/fsl-layerscape/fdt.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+)

diff --git a/arch/arm/cpu/armv8/fsl-layerscape/fdt.c b/arch/arm/cpu/armv8/fsl-layerscape/fdt.c index 19917b207a..5a16b63800 100644 --- a/arch/arm/cpu/armv8/fsl-layerscape/fdt.c +++ b/arch/arm/cpu/armv8/fsl-layerscape/fdt.c @@ -401,6 +401,24 @@ void fdt_fixup_remove_jr(void *blob) } #endif

+void fdt_disable_multimedia(void *blob, unsigned int svr) +{ + int off; + + if (!((svr >> 10) & 0x1)) + 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); +} + void ft_cpu_setup(void *blob, bd_t *bd) { struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR); @@ -462,4 +480,7 @@ 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 }