libpdbg/bmcfsi.c: Add Romulus gpio pinout

Signed-off-by: Alistair Popple <alistair@popple.id.au>

3 files changed, 17 insertions, 1 deletions

diff --git a/libpdbg/bmcfsi.c b/libpdbg/bmcfsi.c
index 0dde38f..c75bc06 100644
--- a/libpdbg/bmcfsi.c
+++ b/libpdbg/bmcfsi.c
@@ -72,6 +72,16 @@ struct gpio_pin p9w_gpio_pins[] = {
 };
 #define P9W_CLOCK_DELAY 20
 
+/* POWER9 Witherspoon mappings */
+struct gpio_pin p9r_gpio_pins[] = {
+	{0x1e0, 16},	/* FSI_CLK = AA0 */
+	{0x1e0, 18},	/* FSI_DAT = AA2 */
+	{0x80, 10},	/* FSI_DAT_EN = R2 */
+	{0, 24},	/* FSI_ENABLE = D0 */
+	{0, 6},		/* CRONUS_SEL = A6 */
+};
+#define P9R_CLOCK_DELAY 20
+
 /* Pointer to the GPIO pins to use for this system */
 static struct gpio_pin *gpio_pins;
 #define FSI_CLK		&gpio_pins[GPIO_FSI_CLK]
@@ -496,6 +506,10 @@ int fsi_target_init(struct target *target, const char *name, enum fsi_system_typ
 			gpio_pins = p9w_gpio_pins;
 			clock_delay = P9W_CLOCK_DELAY;
 			break;
+		case FSI_SYSTEM_P9R:
+			gpio_pins = p9r_gpio_pins;
+			clock_delay = P9R_CLOCK_DELAY;
+			break;
 		default:
 			PR_ERROR("Unrecognized system type specified\n");
 			exit(-1);
diff --git a/libpdbg/operations.h b/libpdbg/operations.h
index f698d40..666f58d 100644
--- a/libpdbg/operations.h
+++ b/libpdbg/operations.h
@@ -69,7 +69,7 @@ int ram_start_thread(struct target *thread);
 /* GDB server functionality */
 int gdbserver_start(uint16_t port);
 
-enum fsi_system_type {FSI_SYSTEM_P8, FSI_SYSTEM_P9W};
+enum fsi_system_type {FSI_SYSTEM_P8, FSI_SYSTEM_P9W, FSI_SYSTEM_P9R};
 int fsi_target_init(struct target *target, const char *name, enum fsi_system_type tpye, struct target *next);
 int fsi_target_probe(struct target *targets, int max_target_count);
 int i2c_target_init(struct target *target, const char *name, struct target *next,
diff --git a/src/main.c b/src/main.c
index 55849fc..01550bd 100644
--- a/src/main.c
+++ b/src/main.c
@@ -381,6 +381,8 @@ static int fsi_backend_targets_init(void)
 		type = FSI_SYSTEM_P8;
 	else if (!strcmp(device_node, "p9w") || !strcmp(device_node, "witherspoon"))
 		type = FSI_SYSTEM_P9W;
+	else if (!strcmp(device_node, "p9r") || !strcmp(device_node, "romulus"))
+		type = FSI_SYSTEM_P9R;
 	else {
 		PR_ERROR("Unrecognized FSI system type %s\n", device_node);
 		return -1;