x86: Add CBMEM console driver for coreboot

[karo-tx-uboot.git] / common / env_common.c

diff --git a/common/env_common.c b/common/env_common.c
index b9865bf630b2866246c08e71353710cd577ef546..3d3cb70a6d60a21de660a20b260a20c447270ed9 100644 (file)
--- a/common/env_common.c
+++ b/common/env_common.c
@@ -37,104 +37,7 @@ DECLARE_GLOBAL_DATA_PTR;
 /************************************************************************
  * Default settings to be used when no valid environment is found
  */
-#define XMK_STR(x)     #x
-#define MK_STR(x)      XMK_STR(x)
-
-const uchar default_environment[] = {
-#ifdef CONFIG_BOOTARGS
-       "bootargs="     CONFIG_BOOTARGS                 "\0"
-#endif
-#ifdef CONFIG_BOOTCOMMAND
-       "bootcmd="      CONFIG_BOOTCOMMAND              "\0"
-#endif
-#ifdef CONFIG_RAMBOOTCOMMAND
-       "ramboot="      CONFIG_RAMBOOTCOMMAND           "\0"
-#endif
-#ifdef CONFIG_NFSBOOTCOMMAND
-       "nfsboot="      CONFIG_NFSBOOTCOMMAND           "\0"
-#endif
-#if defined(CONFIG_BOOTDELAY) && (CONFIG_BOOTDELAY >= 0)
-       "bootdelay="    MK_STR(CONFIG_BOOTDELAY)        "\0"
-#endif
-#if defined(CONFIG_BAUDRATE) && (CONFIG_BAUDRATE >= 0)
-       "baudrate="     MK_STR(CONFIG_BAUDRATE)         "\0"
-#endif
-#ifdef CONFIG_LOADS_ECHO
-       "loads_echo="   MK_STR(CONFIG_LOADS_ECHO)       "\0"
-#endif
-#ifdef CONFIG_ETHADDR
-       "ethaddr="      MK_STR(CONFIG_ETHADDR)          "\0"
-#endif
-#ifdef CONFIG_ETH1ADDR
-       "eth1addr="     MK_STR(CONFIG_ETH1ADDR)         "\0"
-#endif
-#ifdef CONFIG_ETH2ADDR
-       "eth2addr="     MK_STR(CONFIG_ETH2ADDR)         "\0"
-#endif
-#ifdef CONFIG_ETH3ADDR
-       "eth3addr="     MK_STR(CONFIG_ETH3ADDR)         "\0"
-#endif
-#ifdef CONFIG_ETH4ADDR
-       "eth4addr="     MK_STR(CONFIG_ETH4ADDR)         "\0"
-#endif
-#ifdef CONFIG_ETH5ADDR
-       "eth5addr="     MK_STR(CONFIG_ETH5ADDR)         "\0"
-#endif
-#ifdef CONFIG_ETHPRIME
-       "ethprime="     CONFIG_ETHPRIME                 "\0"
-#endif
-#ifdef CONFIG_IPADDR
-       "ipaddr="       MK_STR(CONFIG_IPADDR)           "\0"
-#endif
-#ifdef CONFIG_SERVERIP
-       "serverip="     MK_STR(CONFIG_SERVERIP)         "\0"
-#endif
-#ifdef CONFIG_SYS_AUTOLOAD
-       "autoload="     CONFIG_SYS_AUTOLOAD             "\0"
-#endif
-#ifdef CONFIG_PREBOOT
-       "preboot="      CONFIG_PREBOOT                  "\0"
-#endif
-#ifdef CONFIG_ROOTPATH
-       "rootpath="     CONFIG_ROOTPATH                 "\0"
-#endif
-#ifdef CONFIG_GATEWAYIP
-       "gatewayip="    MK_STR(CONFIG_GATEWAYIP)        "\0"
-#endif
-#ifdef CONFIG_NETMASK
-       "netmask="      MK_STR(CONFIG_NETMASK)          "\0"
-#endif
-#ifdef CONFIG_HOSTNAME
-       "hostname="     MK_STR(CONFIG_HOSTNAME)         "\0"
-#endif
-#ifdef CONFIG_BOOTFILE
-       "bootfile="     CONFIG_BOOTFILE                 "\0"
-#endif
-#ifdef CONFIG_LOADADDR
-       "loadaddr="     MK_STR(CONFIG_LOADADDR)         "\0"
-#endif
-#ifdef CONFIG_CLOCKS_IN_MHZ
-       "clocks_in_mhz=1\0"
-#endif
-#if defined(CONFIG_PCI_BOOTDELAY) && (CONFIG_PCI_BOOTDELAY > 0)
-       "pcidelay="     MK_STR(CONFIG_PCI_BOOTDELAY)    "\0"
-#endif
-#ifdef CONFIG_ENV_VARS_UBOOT_CONFIG
-       "arch="         CONFIG_SYS_ARCH                 "\0"
-       "cpu="          CONFIG_SYS_CPU                  "\0"
-       "board="        CONFIG_SYS_BOARD                "\0"
-#ifdef CONFIG_SYS_VENDOR
-       "vendor="       CONFIG_SYS_VENDOR               "\0"
-#endif
-#ifdef CONFIG_SYS_SOC
-       "soc="          CONFIG_SYS_SOC                  "\0"
-#endif
-#endif
-#ifdef CONFIG_EXTRA_ENV_SETTINGS
-       CONFIG_EXTRA_ENV_SETTINGS
-#endif
-       "\0"
-};
+#include <env_default.h>
 
 struct hsearch_data env_htab = {
        .apply = env_check_apply,
@@ -180,6 +83,11 @@ const uchar *env_get_addr(int index)
 
 void set_default_env(const char *s)
 {
+       /*
+        * By default, do not apply changes as they will eventually
+        * be applied by someone else
+        */
+       int do_apply = 0;
        if (sizeof(default_environment) > ENV_SIZE) {
                puts("*** Error - default environment is too large\n\n");
                return;
@@ -191,6 +99,14 @@ void set_default_env(const char *s)
                                "using default environment\n\n",
                                s + 1);
                } else {
+                       /*
+                        * This set_to_default was explicitly asked for
+                        * by the user, as opposed to being a recovery
+                        * mechanism.  Therefore we check every single
+                        * variable and apply changes to the system
+                        * right away (e.g. baudrate, console).
+                        */
+                       do_apply = 1;
                        puts(s);
                }
        } else {
@@ -199,12 +115,26 @@ void set_default_env(const char *s)
 
        if (himport_r(&env_htab, (char *)default_environment,
                        sizeof(default_environment), '\0', 0,
-                       0, NULL, 0 /* do_apply */) == 0)
+                       0, NULL, do_apply) == 0)
                error("Environment import failed: errno = %d\n", errno);
 
        gd->flags |= GD_FLG_ENV_READY;
 }
 
+
+/* [re]set individual variables to their value in the default environment */
+int set_default_vars(int nvars, char * const vars[])
+{
+       /*
+        * Special use-case: import from default environment
+        * (and use \0 as a separator)
+        */
+       return himport_r(&env_htab, (const char *)default_environment,
+                               sizeof(default_environment), '\0', H_NOCLEAR,
+                               nvars, vars, 1 /* do_apply */);
+}
+
+#ifndef CONFIG_SPL_BUILD
 /*
  * Check if CRC is valid and (if yes) import the environment.
  * Note that "buf" may or may not be aligned.
@@ -236,6 +166,7 @@ int env_import(const char *buf, int check)
 
        return 0;
 }
+#endif
 
 void env_relocate(void)
 {
@@ -243,7 +174,8 @@ void env_relocate(void)
        env_reloc();
 #endif
        if (gd->env_valid == 0) {
-#if defined(CONFIG_ENV_IS_NOWHERE)     /* Environment not changable */
+#if defined(CONFIG_ENV_IS_NOWHERE) || defined(CONFIG_SPL_BUILD)
+               /* Environment not changable */
                set_default_env(NULL);
 #else
                bootstage_error(BOOTSTAGE_ID_NET_CHECKSUM);
@@ -254,7 +186,7 @@ void env_relocate(void)
        }
 }
 
-#ifdef CONFIG_AUTO_COMPLETE
+#if defined(CONFIG_AUTO_COMPLETE) && !defined(CONFIG_SPL_BUILD)
 int env_complete(char *var, int maxv, char *cmdv[], int bufsz, char *buf)
 {
        ENTRY *match;