board: ti: Pull redundant DDR functions to a common location and Fixup DDR size when ECC is enabled
As there are few redundant functions in board/ti/*/evm.c files, pull
them to a common location of access to reuse and include the common file
to access the functions.
Call k3-ddrss driver through fixup_ddr_driver_for_ecc() to fixup the
device tree and resize the available amount of DDR, if ECC is enabled.
Otherwise, fixup the device tree using the regular
fdt_fixup_memory_banks().
Also call dram_init_banksize() after every call to
fixup_ddr_driver_for_ecc() is made so that gd->bd is populated
correctly.
Ensure that fixup_ddr_driver_for_ecc() is agnostic to the number of DDR
controllers present.
Signed-off-by: Santhosh Kumar K <s-k6@ti.com>
Signed-off-by: Neha Malcom Francis <n-francis@ti.com>
Reviewed-by: Wadim Egorov <w.egorov@phytec.de>
diff --git a/arch/arm/mach-k3/k3-ddr.c b/arch/arm/mach-k3/k3-ddr.c
new file mode 100644
index 0000000..6e3e60c
--- /dev/null
+++ b/arch/arm/mach-k3/k3-ddr.c
@@ -0,0 +1,72 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2024, Texas Instruments Incorporated - https://www.ti.com/
+ */
+
+#include <fdt_support.h>
+#include <dm/uclass.h>
+#include <k3-ddrss.h>
+#include <spl.h>
+
+#include <asm/arch/k3-ddr.h>
+
+__weak int dram_init(void)
+{
+ return 0;
+}
+
+__weak int dram_init_banksize(void)
+{
+ return 0;
+}
+
+#if defined(CONFIG_SPL_BUILD)
+void fixup_ddr_driver_for_ecc(struct spl_image_info *spl_image)
+{
+ struct udevice *dev;
+ int ret, ctr = 1;
+
+ dram_init_banksize();
+
+ ret = uclass_get_device(UCLASS_RAM, 0, &dev);
+ if (ret)
+ panic("Cannnot get RAM device for ddr size fixup: %d\n", ret);
+
+ ret = k3_ddrss_ddr_fdt_fixup(dev, spl_image->fdt_addr, gd->bd);
+ if (ret)
+ printf("Error fixing up ddr node for ECC use! %d\n", ret);
+
+ ret = uclass_next_device_err(&dev);
+
+ while (ret && ret != -ENODEV) {
+ ret = k3_ddrss_ddr_fdt_fixup(dev, spl_image->fdt_addr, gd->bd);
+ if (ret)
+ printf("Error fixing up ddr node %d for ECC use! %d\n", ctr, ret);
+
+ ret = uclass_next_device_err(&dev);
+ ctr++;
+ }
+}
+
+void fixup_memory_node(struct spl_image_info *spl_image)
+{
+ u64 start[CONFIG_NR_DRAM_BANKS];
+ u64 size[CONFIG_NR_DRAM_BANKS];
+ int bank;
+ int ret;
+
+ dram_init();
+ dram_init_banksize();
+
+ for (bank = 0; bank < CONFIG_NR_DRAM_BANKS; bank++) {
+ start[bank] = gd->bd->bi_dram[bank].start;
+ size[bank] = gd->bd->bi_dram[bank].size;
+ }
+
+ ret = fdt_fixup_memory_banks(spl_image->fdt_addr, start, size,
+ CONFIG_NR_DRAM_BANKS);
+
+ if (ret)
+ printf("Error fixing up memory node! %d\n", ret);
+}
+#endif