3 files changed, 56 insertions, 0 deletions
diff --git a/arch/powerpc/cpu/mpc85xx/cpu_init.c b/arch/powerpc/cpu/mpc85xx/cpu_init.c
index d6cf885..78316a6 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 */
diff --git a/arch/powerpc/cpu/mpc85xx/fdt.c b/arch/powerpc/cpu/mpc85xx/fdt.c
index ed80a84..85dfa5b 100644
--- a/arch/powerpc/cpu/mpc85xx/fdt.c
+++ b/arch/powerpc/cpu/mpc85xx/fdt.c
@@ -14,6 +14,7 @@
 #include <linux/ctype.h>
 #include <asm/io.h>
 #include <asm/fsl_portals.h>
+#include <hwconfig.h>
 #ifdef CONFIG_FSL_ESDHC
 #include <fsl_esdhc.h>
 #endif
@@ -35,6 +36,11 @@ void ft_fixup_cpu(void *blob, u64 memory_limit)
 	u32 bootpg = determine_mp_bootpg(NULL);
 	u32 id = get_my_id();
 	const char *enable_method;
+#if defined(T1040_TDM_QUIRK_CCSR_BASE)
+	int ret;
+	int tdm_hwconfig_enabled = 0;
+	char buffer[HWCONFIG_BUFFER_SIZE] = {0};
+#endif
 
 	off = fdt_node_offset_by_prop_value(blob, -1, "device_type", "cpu", 4);
 	while (off != -FDT_ERR_NOTFOUND) {
@@ -77,6 +83,26 @@ void ft_fixup_cpu(void *blob, u64 memory_limit)
 				"device_type", "cpu", 4);
 	}
 
+#if defined(T1040_TDM_QUIRK_CCSR_BASE)
+#define	CONFIG_MEM_HOLE_16M	0x1000000
+	/*
+	 * Extract hwconfig from environment.
+	 * Search for tdm entry in hwconfig.
+	 */
+	ret = getenv_f("hwconfig", buffer, sizeof(buffer));
+	if (ret > 0)
+		tdm_hwconfig_enabled = hwconfig_f("tdm", buffer);
+
+	/* Reserve the memory hole created by TDM LAW, so OSes dont use it */
+	if (tdm_hwconfig_enabled) {
+		off = fdt_add_mem_rsv(blob, T1040_TDM_QUIRK_CCSR_BASE,
+				      CONFIG_MEM_HOLE_16M);
+		if (off < 0)
+			printf("Failed  to reserve memory for tdm: %s\n",
+			       fdt_strerror(off));
+	}
+#endif
+
 	/* Reserve the boot page so OSes dont use it */
 	if ((u64)bootpg < memory_limit) {
 		off = fdt_add_mem_rsv(blob, bootpg, (u64)4096);
diff --git a/arch/powerpc/cpu/mpc85xx/t1040_ids.c b/arch/powerpc/cpu/mpc85xx/t1040_ids.c
index 1034cd4..a5dfb81 100644
--- a/arch/powerpc/cpu/mpc85xx/t1040_ids.c
+++ b/arch/powerpc/cpu/mpc85xx/t1040_ids.c
@@ -47,6 +47,7 @@ struct liodn_id_table liodn_tbl[] = {
 
 	/* SET_NEXUS_LIODN(557), -- not yet implemented */
 	SET_QE_LIODN(559),
+	SET_TDM_LIODN(560),
 };
 int liodn_tbl_sz = ARRAY_SIZE(liodn_tbl);