arm: total_compute: depend on TF-A for hardware description
On Total Compute, TF-A passes the info via DT binding for the hardware
description - includes the serial, memory, and arm_ffa nodes.
This commit initializes the fdt base address based on the passed the
register x1.
The similar implementation has already been done for the raspberry pi,
so borrow a lot of it.
Co-developed-by: Jackson Cooper-Driver <jackson.cooper-driver@arm.com>
Signed-off-by: Jackson Cooper-Driver <jackson.cooper-driver@arm.com>
Signed-off-by: Boyan Karatotev <boyan.karatotev@arm.com>
Signed-off-by: Leo Yan <leo.yan@arm.com>
diff --git a/board/armltd/total_compute/total_compute.c b/board/armltd/total_compute/total_compute.c
index e1b4f49..571a075 100644
--- a/board/armltd/total_compute/total_compute.c
+++ b/board/armltd/total_compute/total_compute.c
@@ -7,19 +7,10 @@
#include <config.h>
#include <dm.h>
#include <dm/platform_data/serial_pl01x.h>
+#include <env.h>
#include <asm/armv8/mmu.h>
#include <asm/global_data.h>
-
-static const struct pl01x_serial_plat serial_plat = {
- .base = UART0_BASE,
- .type = TYPE_PL011,
- .clock = CFG_PL011_CLOCK,
-};
-
-U_BOOT_DRVINFO(total_compute_serials) = {
- .name = "serial_pl01x",
- .plat = &serial_plat,
-};
+#include <asm/system.h>
static struct mm_region total_compute_mem_map[] = {
{
@@ -43,6 +34,23 @@
struct mm_region *mem_map = total_compute_mem_map;
+/*
+ * Push the variable into the .data section so that it
+ * does not get cleared later.
+ */
+unsigned long __section(".data") fw_dtb_pointer;
+
+void *board_fdt_blob_setup(int *err)
+{
+ *err = 0;
+ if (fdt_magic(fw_dtb_pointer) != FDT_MAGIC) {
+ *err = -ENXIO;
+ return NULL;
+ }
+
+ return (void *)fw_dtb_pointer;
+}
+
int board_init(void)
{
return 0;
@@ -50,19 +58,12 @@
int dram_init(void)
{
- gd->ram_size = PHYS_SDRAM_1_SIZE;
- return 0;
+ return fdtdec_setup_mem_size_base();
}
int dram_init_banksize(void)
{
- gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
- gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
-
- gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
- gd->bd->bi_dram[1].size = PHYS_SDRAM_2_SIZE;
-
- return 0;
+ return fdtdec_setup_memory_banksize();
}
/* Nothing to be done here as handled by PSCI interface */