The dram_init and dram_init_banksize functions were using a board
specific implementation for decoding the memory banks from the fdt. This
board specific implementation uses a static variable 'tmp' which makes
these functions unsafe for execution from within the board_init_f
context.
This change makes the dram_init* functions use a generic implementation
of decoding and populating memory bank and size data.
Signed-off-by: Nathan Rossi <nat...@nathanrossi.com>
Fixes: 8d59d7f63b ("ARM64: zynqmp: Read RAM information from DT")
Cc: Michal Simek <michal.si...@xilinx.com>
---
board/xilinx/zynqmp/zynqmp.c | 112 ++-----------------------------------------
1 file changed, 3 insertions(+), 109 deletions(-)
diff --git a/board/xilinx/zynqmp/zynqmp.c b/board/xilinx/zynqmp/zynqmp.c
index cef1f6a13a..8a3d0043b9 100644
--- a/board/xilinx/zynqmp/zynqmp.c
+++ b/board/xilinx/zynqmp/zynqmp.c
@@ -180,121 +180,15 @@ int zynq_board_read_rom_ethaddr(unsigned char *ethaddr)
}
#if !defined(CONFIG_SYS_SDRAM_BASE) && !defined(CONFIG_SYS_SDRAM_SIZE)
-/*
- * fdt_get_reg - Fill buffer by information from DT
- */
-static phys_size_t fdt_get_reg(const void *fdt, int nodeoffset, void *buf,
- const u32 *cell, int n)
-{
- int i = 0, b, banks;
- int parent_offset = fdt_parent_offset(fdt, nodeoffset);
- int address_cells = fdt_address_cells(fdt, parent_offset);
- int size_cells = fdt_size_cells(fdt, parent_offset);
- char *p = buf;
- u64 val;
- u64 vals;
-
- debug("%s: addr_cells=%x, size_cell=%x, buf=%p, cell=%p\n",
- __func__, address_cells, size_cells, buf, cell);
-
- /* Check memory bank setup */
- banks = n % (address_cells + size_cells);
- if (banks)
- panic("Incorrect memory setup cells=%d, ac=%d, sc=%d\n",
- n, address_cells, size_cells);
-
- banks = n / (address_cells + size_cells);
-
- for (b = 0; b < banks; b++) {
- debug("%s: Bank #%d:\n", __func__, b);
- if (address_cells == 2) {
- val = cell[i + 1];
- val <<= 32;
- val |= cell[i];
- val = fdt64_to_cpu(val);
- debug("%s: addr64=%llx, ptr=%p, cell=%p\n",
- __func__, val, p, &cell[i]);
- *(phys_addr_t *)p = val;
- } else {
- debug("%s: addr32=%x, ptr=%p\n",
- __func__, fdt32_to_cpu(cell[i]), p);
- *(phys_addr_t *)p = fdt32_to_cpu(cell[i]);
- }
- p += sizeof(phys_addr_t);
- i += address_cells;
-
- debug("%s: pa=%p, i=%x, size=%zu\n", __func__, p, i,
- sizeof(phys_addr_t));
-
- if (size_cells == 2) {
- vals = cell[i + 1];
- vals <<= 32;
- vals |= cell[i];
- vals = fdt64_to_cpu(vals);
-
- debug("%s: size64=%llx, ptr=%p, cell=%p\n",
- __func__, vals, p, &cell[i]);
- *(phys_size_t *)p = vals;
- } else {
- debug("%s: size32=%x, ptr=%p\n",
- __func__, fdt32_to_cpu(cell[i]), p);
- *(phys_size_t *)p = fdt32_to_cpu(cell[i]);
- }
- p += sizeof(phys_size_t);
- i += size_cells;
-
- debug("%s: ps=%p, i=%x, size=%zu\n",
- __func__, p, i, sizeof(phys_size_t));
- }
-
- /* Return the first address size */
- return *(phys_size_t *)((char *)buf + sizeof(phys_addr_t));
-}
-
-#define FDT_REG_SIZE sizeof(u32)
-/* Temp location for sharing data for storing */
-/* Up to 64-bit address + 64-bit size */
-static u8 tmp[CONFIG_NR_DRAM_BANKS * 16];
-
void dram_init_banksize(void)
{
- int bank;
-
- memcpy(&gd->bd->bi_dram[0], &tmp, sizeof(tmp));
-
- for (bank = 0; bank < CONFIG_NR_DRAM_BANKS; bank++) {
- debug("Bank #%d: start %llx\n", bank,
- (unsigned long long)gd->bd->bi_dram[bank].start);
- debug("Bank #%d: size %llx\n", bank,
- (unsigned long long)gd->bd->bi_dram[bank].size);
- }
+ fdtdec_setup_memory_banksize();
}
int dram_init(void)
{
- int node, len;
- const void *blob = gd->fdt_blob;
- const u32 *cell;
-
- memset(&tmp, 0, sizeof(tmp));
-
- /* find or create "/memory" node. */
- node = fdt_subnode_offset(blob, 0, "memory");
- if (node < 0) {
- printf("%s: Can't get memory node\n", __func__);
- return node;
- }
-
- /* Get pointer to cells and lenght of it */
- cell = fdt_getprop(blob, node, "reg", &len);
- if (!cell) {
- printf("%s: Can't get reg property\n", __func__);
- return -1;
- }
-
- gd->ram_size = fdt_get_reg(blob, node, &tmp, cell, len / FDT_REG_SIZE);
-
- debug("%s: Initial DRAM size %llx\n", __func__, (u64)gd->ram_size);
+ if (fdtdec_setup_memory_size() != 0)
+ return -EINVAL;
return 0;
}
--
2.10.2
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