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arm64: Layerscape: Survive LPI one-way reset workaround

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The workaround of LPI one-way reset issue is broken by the series:
https://patchwork.ozlabs.org/project/uboot/list/?series=192398

This patch is to add DT node for GIC RD tables and create corresponding
reserved-memory node in kernel DT to fix it.

Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
This commit is contained in:
Hou Zhiqiang
2020-08-06 14:38:19 +08:00
committed by Priyanka Jain
parent 223c19076f
commit af288cb291
5 changed files with 40 additions and 1 deletions
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17
arch/arm/cpu/armv8/fsl-layerscape/soc.c
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@@ -45,7 +45,22 @@ DECLARE_GLOBAL_DATA_PTR;
#ifdef CONFIG_GIC_V3_ITS
int ls_gic_rd_tables_init(void *blob)
{
int ret;
struct fdt_memory lpi_base;
fdt_addr_t addr;
fdt_size_t size;
int offset, ret;
offset = fdt_path_offset(gd->fdt_blob, "/syscon@0x80000000");
addr = fdtdec_get_addr_size_auto_noparent(gd->fdt_blob, offset, "reg",
0, &size, false);
lpi_base.start = addr;
lpi_base.end = addr + size - 1;
ret = fdtdec_add_reserved_memory(blob, "lpi_rd_table", &lpi_base, NULL);
if (ret) {
debug("%s: failed to add reserved memory\n", __func__);
return ret;
}
ret = gic_lpi_tables_init();
if (ret)