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Diffstat (limited to 'arch/powerpc/cpu/mpc85xx/cpu_init.c')
-rw-r--r--arch/powerpc/cpu/mpc85xx/cpu_init.c29
1 files changed, 29 insertions, 0 deletions
diff --git a/arch/powerpc/cpu/mpc85xx/cpu_init.c b/arch/powerpc/cpu/mpc85xx/cpu_init.c
index d6cf88555a..78316a6815 100644
--- a/arch/powerpc/cpu/mpc85xx/cpu_init.c
+++ b/arch/powerpc/cpu/mpc85xx/cpu_init.c
@@ -225,6 +225,32 @@ static void disable_cpc_sram(void)
}
#endif
+#if defined(T1040_TDM_QUIRK_CCSR_BASE)
+#ifdef CONFIG_POST
+#error POST memory test cannot be enabled with TDM
+#endif
+static void enable_tdm_law(void)
+{
+ int ret;
+ char buffer[HWCONFIG_BUFFER_SIZE] = {0};
+ int tdm_hwconfig_enabled = 0;
+
+ /*
+ * Extract hwconfig from environment since environment
+ * is not setup properly yet. Search for tdm entry in
+ * hwconfig.
+ */
+ ret = getenv_f("hwconfig", buffer, sizeof(buffer));
+ if (ret > 0) {
+ tdm_hwconfig_enabled = hwconfig_f("tdm", buffer);
+ /* If tdm is defined in hwconfig, set law for tdm workaround */
+ if (tdm_hwconfig_enabled)
+ set_next_law(T1040_TDM_QUIRK_CCSR_BASE, LAW_SIZE_16M,
+ LAW_TRGT_IF_CCSR);
+ }
+}
+#endif
+
static void enable_cpc(void)
{
int i;
@@ -729,6 +755,9 @@ skip_l2:
disable_cpc_sram();
#endif
enable_cpc();
+#if defined(T1040_TDM_QUIRK_CCSR_BASE)
+ enable_tdm_law();
+#endif
#ifndef CONFIG_SYS_FSL_NO_SERDES
/* needs to be in ram since code uses global static vars */