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[1/2] board: fsl: ls2088ardb: Program GIC LPI configuration table

Message ID 1607179770-26041-1-git-send-email-nikhil.gupta@nxp.com
State Changes Requested
Delegated to: Priyanka Jain
Headers show
Series [1/2] board: fsl: ls2088ardb: Program GIC LPI configuration table | expand

Commit Message

Nikhil Gupta Dec. 5, 2020, 2:49 p.m. UTC 
From: Nikhil Gupta <nikhil.gupta@nxp.com>

Program GIC LPI configuration table:

1. Redistributor PROCBASER configuration table (which is common for all
redistributors)

2. Redistributor pending table (PENDBASER), for all the available
redistributors.

3.Reserve DDR memory region used for GIC LPI configuration table.

Signed-off-by: Nikhil Gupta <nikhil.gupta@nxp.com>
---
 board/freescale/ls2080ardb/ls2080ardb.c | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)
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Patch

diff --git a/board/freescale/ls2080ardb/ls2080ardb.c b/board/freescale/ls2080ardb/ls2080ardb.c
index 282aaf4..318c9a6 100644
--- a/board/freescale/ls2080ardb/ls2080ardb.c
+++ b/board/freescale/ls2080ardb/ls2080ardb.c
@@ -23,7 +23,10 @@ 
 #include <asm/arch/ppa.h>
 #include <fsl_sec.h>
 #include <asm/arch-fsl-layerscape/fsl_icid.h>
+#include <asm/gic-v3.h>
+#include <cpu_func.h>
 
+#define GIC_LPI_SIZE                             0x200000
 #ifdef CONFIG_FSL_QIXIS
 #include "../common/qixis.h"
 #include "ls2080ardb_qixis.h"
@@ -347,6 +350,21 @@  void board_quiesce_devices(void)
 }
 #endif
 
+#ifdef CONFIG_GIC_V3_ITS
+void fdt_fixup_gic_lpi_memory(void *blob, u64 gic_lpi_base)
+{
+	u32 phandle;
+	int err;
+	struct fdt_memory gic_lpi;
+
+	gic_lpi.start = gic_lpi_base;
+	gic_lpi.end = gic_lpi_base + GIC_LPI_SIZE - 1;
+	err = fdtdec_add_reserved_memory(blob, "gic-lpi", &gic_lpi, &phandle);
+	if (err < 0)
+		debug("failed to add reserved memory: %d\n", err);
+}
+#endif
+
 #ifdef CONFIG_OF_BOARD_SETUP
 void fsl_fdt_fixup_flash(void *fdt)
 {
@@ -421,6 +439,7 @@  int ft_board_setup(void *blob, bd_t *bd)
 	u64 mc_memory_base = 0;
 	u64 mc_memory_size = 0;
 	u16 total_memory_banks;
+	u64 gic_lpi_base;
 
 	ft_cpu_setup(blob, bd);
 
@@ -440,6 +459,12 @@  int ft_board_setup(void *blob, bd_t *bd)
 	base[1] = gd->bd->bi_dram[1].start;
 	size[1] = gd->bd->bi_dram[1].size;
 
+#ifdef CONFIG_GIC_V3_ITS
+	gic_lpi_base = gd->arch.resv_ram - GIC_LPI_SIZE;
+	gic_lpi_tables_init(gic_lpi_base, cpu_numcores());
+	fdt_fixup_gic_lpi_memory(blob, gic_lpi_base);
+#endif
+
 #ifdef CONFIG_RESV_RAM
 	/* reduce size if reserved memory is within this bank */
 	if (gd->arch.resv_ram >= base[0] &&