ppc4xx: Canyonlands: Print SATA/PCIe configuration and board revision

Canyonlands (460EX) shares the first PCIe interface with the SoC SATA
interface. This usage can be configured with the jumper J6. This patch
displays the current configuration upon bootup and changes the PCIe
init loop, to only initialize the availabel PCIe slots.

Signed-off-by: Stefan Roese <sr@denx.de>

1 files changed, 39 insertions, 3 deletions

diff --git a/board/amcc/canyonlands/canyonlands.c b/board/amcc/canyonlands/canyonlands.c
index 8cc6a89fac1..fa2868face6 100644
--- a/board/amcc/canyonlands/canyonlands.c
+++ b/board/amcc/canyonlands/canyonlands.c
@@ -32,6 +32,12 @@ extern flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */
 
 DECLARE_GLOBAL_DATA_PTR;
 
+#define CFG_BCSR3_PCIE		0x10
+
+#define BOARD_CANYONLANDS_PCIE	1
+#define BOARD_CANYONLANDS_SATA	2
+#define BOARD_GLACIER		3
+
 int board_early_init_f(void)
 {
 	u32 sdr0_cust0;
@@ -125,10 +131,29 @@ int checkboard (void)
 	char *s = getenv("serial#");
 	u32 pvr = get_pvr();
 
-	if ((pvr == PVR_460GT_RA) || (pvr == PVR_460GT_SE_RA))
+	if ((pvr == PVR_460GT_RA) || (pvr == PVR_460GT_SE_RA)) {
 		printf("Board: Glacier - AMCC PPC460GT Evaluation Board");
-	else
+		gd->board_type = BOARD_GLACIER;
+	} else {
 		printf("Board: Canyonlands - AMCC PPC460EX Evaluation Board");
+		if (in_8((void *)(CFG_BCSR_BASE + 3)) & CFG_BCSR3_PCIE)
+			gd->board_type = BOARD_CANYONLANDS_PCIE;
+		else
+			gd->board_type = BOARD_CANYONLANDS_SATA;
+	}
+
+	switch (gd->board_type) {
+	case BOARD_CANYONLANDS_PCIE:
+	case BOARD_GLACIER:
+		puts(", 2*PCIe");
+		break;
+
+	case BOARD_CANYONLANDS_SATA:
+		puts(", 1*PCIe/1*SATA");
+		break;
+	}
+
+	printf(", Rev. %X", in_8((void *)(CFG_BCSR_BASE + 0)));
 
 	if (s != NULL) {
 		puts(", serial# ");
@@ -268,13 +293,24 @@ void pcie_setup_hoses(int busno)
 	int ret = 0;
 	char *env;
 	unsigned int delay;
+	int start;
 
 	/*
 	 * assume we're called after the PCIX hose is initialized, which takes
 	 * bus ID 0 and therefore start numbering PCIe's from 1.
 	 */
 	bus = busno;
-	for (i = 0; i <= 1; i++) {
+
+	/*
+	 * Canyonlands with SATA enabled has only one PCIe slot
+	 * (2nd one).
+	 */
+	if (gd->board_type == BOARD_CANYONLANDS_SATA)
+		start = 1;
+	else
+		start = 0;
+
+	for (i = start; i <= 1; i++) {
 
 		if (is_end_point(i))
 			ret = ppc4xx_init_pcie_endport(i);