Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / common / env_onenand.c

diff --git a/qemu/roms/u-boot/common/env_onenand.c b/qemu/roms/u-boot/common/env_onenand.c
new file mode 100644 (file)
index 0000000..cc3d670
--- /dev/null
+++ b/qemu/roms/u-boot/common/env_onenand.c
@@ -0,0 +1,116 @@
+/*
+ * (C) Copyright 2010 DENX Software Engineering
+ * Wolfgang Denk <wd@denx.de>
+ *
+ * (C) Copyright 2005-2009 Samsung Electronics
+ * Kyungmin Park <kyungmin.park@samsung.com>
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#include <common.h>
+#include <command.h>
+#include <environment.h>
+#include <linux/stddef.h>
+#include <malloc.h>
+#include <search.h>
+#include <errno.h>
+#include <onenand_uboot.h>
+
+#include <linux/compat.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/onenand.h>
+
+char *env_name_spec = "OneNAND";
+
+#define ONENAND_MAX_ENV_SIZE   CONFIG_ENV_SIZE
+#define ONENAND_ENV_SIZE(mtd)  (ONENAND_MAX_ENV_SIZE - ENV_HEADER_SIZE)
+
+DECLARE_GLOBAL_DATA_PTR;
+
+void env_relocate_spec(void)
+{
+       struct mtd_info *mtd = &onenand_mtd;
+#ifdef CONFIG_ENV_ADDR_FLEX
+       struct onenand_chip *this = &onenand_chip;
+#endif
+       int rc;
+       size_t retlen;
+#ifdef ENV_IS_EMBEDDED
+       char *buf = (char *)&environment;
+#else
+       loff_t env_addr = CONFIG_ENV_ADDR;
+       char onenand_env[ONENAND_MAX_ENV_SIZE];
+       char *buf = (char *)&onenand_env[0];
+#endif /* ENV_IS_EMBEDDED */
+
+#ifndef ENV_IS_EMBEDDED
+# ifdef CONFIG_ENV_ADDR_FLEX
+       if (FLEXONENAND(this))
+               env_addr = CONFIG_ENV_ADDR_FLEX;
+# endif
+       /* Check OneNAND exist */
+       if (mtd->writesize)
+               /* Ignore read fail */
+               mtd_read(mtd, env_addr, ONENAND_MAX_ENV_SIZE,
+                               &retlen, (u_char *)buf);
+       else
+               mtd->writesize = MAX_ONENAND_PAGESIZE;
+#endif /* !ENV_IS_EMBEDDED */
+
+       rc = env_import(buf, 1);
+       if (rc)
+               gd->env_valid = 1;
+}
+
+int saveenv(void)
+{
+       env_t   env_new;
+       int ret;
+       struct mtd_info *mtd = &onenand_mtd;
+#ifdef CONFIG_ENV_ADDR_FLEX
+       struct onenand_chip *this = &onenand_chip;
+#endif
+       loff_t  env_addr = CONFIG_ENV_ADDR;
+       size_t  retlen;
+       struct erase_info instr = {
+               .callback       = NULL,
+       };
+
+       ret = env_export(&env_new);
+       if (ret)
+               return ret;
+
+       instr.len = CONFIG_ENV_SIZE;
+#ifdef CONFIG_ENV_ADDR_FLEX
+       if (FLEXONENAND(this)) {
+               env_addr = CONFIG_ENV_ADDR_FLEX;
+               instr.len = CONFIG_ENV_SIZE_FLEX;
+               instr.len <<= onenand_mtd.eraseregions[0].numblocks == 1 ?
+                               1 : 0;
+       }
+#endif
+       instr.addr = env_addr;
+       instr.mtd = mtd;
+       if (mtd_erase(mtd, &instr)) {
+               printf("OneNAND: erase failed at 0x%08llx\n", env_addr);
+               return 1;
+       }
+
+       if (mtd_write(mtd, env_addr, ONENAND_MAX_ENV_SIZE, &retlen,
+                       (u_char *)&env_new)) {
+               printf("OneNAND: write failed at 0x%llx\n", instr.addr);
+               return 2;
+       }
+
+       return 0;
+}
+
+int env_init(void)
+{
+       /* use default */
+       gd->env_addr = (ulong)&default_environment[0];
+       gd->env_valid = 1;
+
+       return 0;
+}