From: Tom Rini <trini@konsulko.com>
Date: Fri, 2 Dec 2022 21:42:23 +0000 (-0500)
Subject: env: nvram: Drop CONFIG_SYS_NVRAM_ACCESS_ROUTINE
X-Git-Url: http://git.dujemihanovic.xyz/?a=commitdiff_plain;h=ade03b55c4f2306785314080736d1af8d035609f;p=u-boot.git

env: nvram: Drop CONFIG_SYS_NVRAM_ACCESS_ROUTINE

This option is unused anywhere and likely untested for quite a long
while. Drop this support code.

Signed-off-by: Tom Rini <trini@konsulko.com>
---

diff --git a/env/nvram.c b/env/nvram.c
index fb265235af..229c34f536 100644
--- a/env/nvram.c
+++ b/env/nvram.c
@@ -7,22 +7,6 @@
  * Andreas Heppel <aheppel@sysgo.de>
  */
 
-/*
- * 09-18-2001 Andreas Heppel, Sysgo RTS GmbH <aheppel@sysgo.de>
- *
- * It might not be possible in all cases to use 'memcpy()' to copy
- * the environment to NVRAM, as the NVRAM might not be mapped into
- * the memory space. (I.e. this is the case for the BAB750). In those
- * cases it might be possible to access the NVRAM using a different
- * method. For example, the RTC on the BAB750 is accessible in IO
- * space using its address and data registers. To enable usage of
- * NVRAM in those cases I invented the functions 'nvram_read()' and
- * 'nvram_write()', which will be activated upon the configuration
- * #define CONFIG_SYS_NVRAM_ACCESS_ROUTINE. Note, that those functions are
- * strongly dependent on the used HW, and must be redefined for each
- * board that wants to use them.
- */
-
 #include <common.h>
 #include <command.h>
 #include <env.h>
@@ -35,22 +19,14 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
-#ifdef CONFIG_SYS_NVRAM_ACCESS_ROUTINE
-extern void *nvram_read(void *dest, const long src, size_t count);
-extern void nvram_write(long dest, const void *src, size_t count);
-#else
 static env_t *env_ptr = (env_t *)CONFIG_ENV_ADDR;
-#endif
 
 static int env_nvram_load(void)
 {
 	char buf[CONFIG_ENV_SIZE];
 
-#if defined(CONFIG_SYS_NVRAM_ACCESS_ROUTINE)
-	nvram_read(buf, CONFIG_ENV_ADDR, CONFIG_ENV_SIZE);
-#else
 	memcpy(buf, (void *)CONFIG_ENV_ADDR, CONFIG_ENV_SIZE);
-#endif
+
 	return env_import(buf, 1, H_EXTERNAL);
 }
 
@@ -63,12 +39,9 @@ static int env_nvram_save(void)
 	if (rcode)
 		return rcode;
 
-#ifdef CONFIG_SYS_NVRAM_ACCESS_ROUTINE
-	nvram_write(CONFIG_ENV_ADDR, &env_new, CONFIG_ENV_SIZE);
-#else
 	if (memcpy((char *)CONFIG_ENV_ADDR, &env_new, CONFIG_ENV_SIZE) == NULL)
 		rcode = 1;
-#endif
+
 	return rcode;
 }
 
@@ -79,19 +52,8 @@ static int env_nvram_save(void)
  */
 static int env_nvram_init(void)
 {
-#if defined(CONFIG_SYS_NVRAM_ACCESS_ROUTINE)
-	ulong crc;
-	uchar data[ENV_SIZE];
-
-	nvram_read(&crc, CONFIG_ENV_ADDR, sizeof(ulong));
-	nvram_read(data, CONFIG_ENV_ADDR + sizeof(ulong), ENV_SIZE);
-
-	if (crc32(0, data, ENV_SIZE) == crc) {
-		gd->env_addr = (ulong)CONFIG_ENV_ADDR + sizeof(long);
-#else
 	if (crc32(0, env_ptr->data, ENV_SIZE) == env_ptr->crc) {
 		gd->env_addr = (ulong)&env_ptr->data;
-#endif
 		gd->env_valid = ENV_VALID;
 	} else {
 		gd->env_valid = ENV_INVALID;