test/py: test_ut.py: Ensure we use bytes

[oweals/u-boot.git] / drivers / ram / stm32_sdram.c

diff --git a/drivers/ram/stm32_sdram.c b/drivers/ram/stm32_sdram.c
index ec2edd67dd19cf150d90bcff357c2a0332f78dd5..f6cac8eb90bfd542f70b07862a1e6e07808befb4 100644 (file)
--- a/drivers/ram/stm32_sdram.c
+++ b/drivers/ram/stm32_sdram.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2017, STMicroelectronics - All Rights Reserved
  * Author(s): Vikas Manocha, <vikas.manocha@st.com> for STMicroelectronics.
- *
- * SPDX-License-Identifier:    GPL-2.0+
  */
 
 #include <common.h>
@@ -12,10 +11,10 @@
 #include <asm/io.h>
 
 #define MEM_MODE_MASK  GENMASK(2, 0)
+#define SWP_FMC_OFFSET 10
+#define SWP_FMC_MASK   GENMASK(SWP_FMC_OFFSET+1, SWP_FMC_OFFSET)
 #define NOT_FOUND      0xff
 
-DECLARE_GLOBAL_DATA_PTR;
-
 struct stm32_fmc_regs {
        /* 0x0 */
        u32 bcr1;       /* NOR/PSRAM Chip select control register 1 */
@@ -259,27 +258,36 @@ static int stm32_fmc_ofdata_to_platdata(struct udevice *dev)
        struct ofnode_phandle_args args;
        u32 *syscfg_base;
        u32 mem_remap;
+       u32 swp_fmc;
        ofnode bank_node;
        char *bank_name;
        u8 bank = 0;
        int ret;
 
-       mem_remap = dev_read_u32_default(dev, "st,mem_remap", NOT_FOUND);
-       if (mem_remap != NOT_FOUND) {
-               ret = dev_read_phandle_with_args(dev, "st,syscfg", NULL, 0, 0,
+       ret = dev_read_phandle_with_args(dev, "st,syscfg", NULL, 0, 0,
                                                 &args);
-               if (ret) {
-                       debug("%s: can't find syscon device (%d)\n", __func__,
-                             ret);
-                       return ret;
-               }
-
+       if (ret) {
+               dev_dbg(dev, "%s: can't find syscon device (%d)\n", __func__, ret);
+       } else {
                syscfg_base = (u32 *)ofnode_get_addr(args.node);
 
-               /* set memory mapping selection */
-               clrsetbits_le32(syscfg_base, MEM_MODE_MASK, mem_remap);
-       } else {
-               debug("%s: cannot find st,mem_remap property\n", __func__);
+               mem_remap = dev_read_u32_default(dev, "st,mem_remap", NOT_FOUND);
+               if (mem_remap != NOT_FOUND) {
+                       /* set memory mapping selection */
+                       clrsetbits_le32(syscfg_base, MEM_MODE_MASK, mem_remap);
+               } else {
+                       dev_dbg(dev, "%s: cannot find st,mem_remap property\n", __func__);
+               }
+               
+               swp_fmc = dev_read_u32_default(dev, "st,swp_fmc", NOT_FOUND);
+               if (swp_fmc != NOT_FOUND) {
+                       /* set fmc swapping selection */
+                       clrsetbits_le32(syscfg_base, SWP_FMC_MASK, swp_fmc << SWP_FMC_OFFSET);
+               } else {
+                       dev_dbg(dev, "%s: cannot find st,swp_fmc property\n", __func__);
+               }
+
+               dev_dbg(dev, "syscfg %x = %x\n", (u32)syscfg_base, *syscfg_base);
        }
 
        dev_for_each_subnode(bank_node, dev) {