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armv8: ls1028a: disable multimedia for ls1027a, ls1017a

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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>
This commit is contained in:
Yuantian Tang 2019-10-10 17:19:37 +08:00 committed by Priyanka Jain
parent 72c3bfaad5
commit 54d5c06cb9
2 changed files with 26 additions and 0 deletions
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23
arch/arm/cpu/armv8/fsl-layerscape/fdt.c
View File

@ -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
arch/arm/include/asm/arch-fsl-layerscape/soc.h
View File

@ -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)