[U-Boot] [PATCH] armv8: ls1028a: disable multimedia feature when not supported
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 --- 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..ef0e2095a6 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
+static 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 }
-----Original Message----- From: U-Boot u-boot-bounces@lists.denx.de On Behalf Of Yuantian Tang Sent: Thursday, September 26, 2019 11:09 AM To: Prabhakar X prabhakar.kushwaha@nxp.com Cc: u-boot@lists.denx.de; Andy Tang andy.tang@nxp.com Subject: [U-Boot] [PATCH] armv8: ls1028a: disable multimedia feature when not supported
Ls1028a has 4 personalities: ls1028a, ls1027a, ls1017a and ls1018a.
Please use same case : Ls -> ls
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
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..ef0e2095a6 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
+static void fdt_disable_multimedia(void *blob, unsigned int svr) {
- int off;
- if (!((svr >> 10) & 0x1))
return;
Use macros, instead of magic values
- /* 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 } -- 2.17.1
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Yuantian Tang