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* [PATCH master] ARM: rpi: reinstate support for multiple variants with same DT
@ 2022-05-30 16:20 Ahmad Fatoum
  2022-05-31  8:15 ` Sascha Hauer
  0 siblings, 1 reply; 2+ messages in thread
From: Ahmad Fatoum @ 2022-05-30 16:20 UTC (permalink / raw)
  To: barebox; +Cc: ore, Ahmad Fatoum

Raspberry Pi support contains custom board code to allow the same DT to
be used across different board model for a given Raspberry Pi
generation. For this to work, barebox may not deduce the model specific
init from the device tree compatible, but instead detect it
automatically. This was broken in the commit changing the board code to
the driver model, so reinstate it.

Fixes: c062cd5cf47d ("ARM: rpi: validate devicetree compatible instead of changing model name")
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
---
 arch/arm/boards/raspberry-pi/rpi-common.c | 110 ++++------------------
 1 file changed, 19 insertions(+), 91 deletions(-)

diff --git a/arch/arm/boards/raspberry-pi/rpi-common.c b/arch/arm/boards/raspberry-pi/rpi-common.c
index 41ef7d16773e..05d59ae6bf97 100644
--- a/arch/arm/boards/raspberry-pi/rpi-common.c
+++ b/arch/arm/boards/raspberry-pi/rpi-common.c
@@ -423,7 +423,7 @@ free_priv:
 	return ret;
 }
 
-static const struct rpi_machine_data rpi_model_a[] = {
+static const struct rpi_machine_data rpi_1_ids[] = {
 	{
 		.hw_id = BCM2835_BOARD_REV_A_7,
 		.flags = RPI_OLD_SCHEMA,
@@ -436,12 +436,6 @@ static const struct rpi_machine_data rpi_model_a[] = {
 	}, {
 		.hw_id = BCM2835_BOARD_REV_A,
 	}, {
-		.hw_id = U8_MAX
-	},
-};
-
-static const struct rpi_machine_data rpi_model_a_plus[] = {
-	{
 		.hw_id = BCM2835_BOARD_REV_A_PLUS_12,
 		.flags = RPI_OLD_SCHEMA,
 	}, {
@@ -450,12 +444,6 @@ static const struct rpi_machine_data rpi_model_a_plus[] = {
 	}, {
 		.hw_id = BCM2835_BOARD_REV_A_PLUS,
 	}, {
-		.hw_id = U8_MAX
-	},
-};
-
-static const struct rpi_machine_data rpi_model_b[] = {
-	{
 		.hw_id = BCM2835_BOARD_REV_B_I2C1_4,
 		.flags = RPI_OLD_SCHEMA,
 	}, {
@@ -467,24 +455,12 @@ static const struct rpi_machine_data rpi_model_b[] = {
 	}, {
 		.hw_id = BCM2835_BOARD_REV_B,
 	}, {
-		.hw_id = U8_MAX
-	},
-};
-
-static const struct rpi_machine_data rpi_model_b_i2c0[] = {
-	{
 		.hw_id = BCM2835_BOARD_REV_B_I2C0_2,
 		.flags = RPI_OLD_SCHEMA,
 	}, {
 		.hw_id = BCM2835_BOARD_REV_B_I2C0_3,
 		.flags = RPI_OLD_SCHEMA,
 	}, {
-		.hw_id = U8_MAX
-	},
-};
-
-static const struct rpi_machine_data rpi_model_b_rev2[] = {
-	{
 		.hw_id = BCM2835_BOARD_REV_B_REV2_d,
 		.flags = RPI_OLD_SCHEMA,
 		.init = rpi_b_init,
@@ -497,12 +473,6 @@ static const struct rpi_machine_data rpi_model_b_rev2[] = {
 		.flags = RPI_OLD_SCHEMA,
 		.init = rpi_b_init,
 	}, {
-		.hw_id = U8_MAX
-	},
-};
-
-static const struct rpi_machine_data rpi_model_b_plus[] = {
-	{
 		.hw_id = BCM2835_BOARD_REV_B_PLUS_10,
 		.flags = RPI_OLD_SCHEMA,
 		.init = rpi_b_plus_init,
@@ -514,12 +484,6 @@ static const struct rpi_machine_data rpi_model_b_plus[] = {
 		.hw_id = BCM2835_BOARD_REV_B_PLUS,
 		.init = rpi_b_plus_init,
 	}, {
-		.hw_id = U8_MAX
-	},
-};
-
-static const struct rpi_machine_data rpi_compute_module[] = {
-	{
 		.hw_id = BCM2835_BOARD_REV_CM_11,
 		.flags = RPI_OLD_SCHEMA,
 	}, {
@@ -528,21 +492,9 @@ static const struct rpi_machine_data rpi_compute_module[] = {
 	}, {
 		.hw_id = BCM2835_BOARD_REV_CM1,
 	}, {
-		.hw_id = U8_MAX
-	},
-};
-
-static const struct rpi_machine_data rpi_model_zero[] = {
-	{
 		.hw_id = BCM2835_BOARD_REV_ZERO,
 		.init = rpi_0_init,
 	}, {
-		.hw_id = U8_MAX
-	},
-};
-
-static const struct rpi_machine_data rpi_model_zero_w[] = {
-	{
 		.hw_id = BCM2835_BOARD_REV_ZERO_W,
 		.init = rpi_0_w_init,
 	}, {
@@ -550,7 +502,7 @@ static const struct rpi_machine_data rpi_model_zero_w[] = {
 	},
 };
 
-static const struct rpi_machine_data rpi_2_model_b[] = {
+static const struct rpi_machine_data rpi_2_ids[] = {
 	{
 		.hw_id = BCM2836_BOARD_REV_2_B,
 		.init = rpi_b_plus_init,
@@ -559,45 +511,21 @@ static const struct rpi_machine_data rpi_2_model_b[] = {
 	},
 };
 
-static const struct rpi_machine_data rpi_3_model_a_plus[] = {
+static const struct rpi_machine_data rpi_3_ids[] = {
 	{
 		.hw_id = BCM2837B0_BOARD_REV_3A_PLUS,
 		.init = rpi_b_plus_init,
 	}, {
-		.hw_id = U8_MAX
-	},
-};
-
-static const struct rpi_machine_data rpi_3_model_b[] = {
-	{
 		.hw_id = BCM2837_BOARD_REV_3_B,
 		.init = rpi_b_init,
 	}, {
-		.hw_id = U8_MAX
-	},
-};
-
-static const struct rpi_machine_data rpi_3_model_b_plus[] = {
-	{
 		.hw_id = BCM2837B0_BOARD_REV_3B_PLUS,
 		.init = rpi_b_plus_init,
 	}, {
-		.hw_id = U8_MAX
-	},
-};
-
-static const struct rpi_machine_data rpi_compute_module_3[] = {
-	{
 		.hw_id = BCM2837_BOARD_REV_CM3,
 	}, {
 		.hw_id = BCM2837B0_BOARD_REV_CM3_PLUS,
 	}, {
-		.hw_id = U8_MAX
-	},
-};
-
-static const struct rpi_machine_data rpi_model_zero_2_w[] = {
-	{
 		.hw_id = BCM2837B0_BOARD_REV_ZERO_2,
 	}, {
 		.hw_id = U8_MAX
@@ -606,27 +534,27 @@ static const struct rpi_machine_data rpi_model_zero_2_w[] = {
 
 static const struct of_device_id rpi_of_match[] = {
 	/* BCM2835 based Boards */
-	{ .compatible = "raspberrypi,model-a", .data = rpi_model_a },
-	{ .compatible = "raspberrypi,model-a-plus", .data = rpi_model_a_plus },
-	{ .compatible = "raspberrypi,model-b", .data = rpi_model_b },
+	{ .compatible = "raspberrypi,model-a", .data = rpi_1_ids },
+	{ .compatible = "raspberrypi,model-a-plus", .data = rpi_1_ids },
+	{ .compatible = "raspberrypi,model-b", .data = rpi_1_ids },
 	/* Raspberry Pi Model B (no P5) */
-	{ .compatible = "raspberrypi,model-b-i2c0", .data = rpi_model_b_i2c0 },
-	{ .compatible = "raspberrypi,model-b-rev2", .data = rpi_model_b_rev2 },
-	{ .compatible = "raspberrypi,model-b-plus", .data = rpi_model_b_plus },
-	{ .compatible = "raspberrypi,compute-module", .data = rpi_compute_module },
-	{ .compatible = "raspberrypi,model-zero", .data = rpi_model_zero },
-	{ .compatible = "raspberrypi,model-zero-w", .data = rpi_model_zero_w },
+	{ .compatible = "raspberrypi,model-b-i2c0", .data = rpi_1_ids },
+	{ .compatible = "raspberrypi,model-b-rev2", .data = rpi_1_ids },
+	{ .compatible = "raspberrypi,model-b-plus", .data = rpi_1_ids },
+	{ .compatible = "raspberrypi,compute-module", .data = rpi_1_ids },
+	{ .compatible = "raspberrypi,model-zero", .data = rpi_1_ids },
+	{ .compatible = "raspberrypi,model-zero-w", .data = rpi_1_ids },
 
 	/* BCM2836 based Boards */
-	{ .compatible = "raspberrypi,2-model-b", .data = rpi_2_model_b },
+	{ .compatible = "raspberrypi,2-model-b", .data = rpi_2_ids },
 
 	/* BCM2837 based Boards */
-	{ .compatible = "raspberrypi,3-model-a-plus", .data = rpi_3_model_a_plus },
-	{ .compatible = "raspberrypi,3-model-b", .data = rpi_3_model_b },
-	{ .compatible = "raspberrypi,3-model-b-plus", .data = rpi_3_model_b_plus },
-	{ .compatible = "raspberrypi,model-zero-2-w", .data = rpi_model_zero_2_w },
-	{ .compatible = "raspberrypi,3-compute-module", .data = rpi_compute_module_3 },
-	{ .compatible = "raspberrypi,3-compute-module-lite", .data = rpi_compute_module_3 },
+	{ .compatible = "raspberrypi,3-model-a-plus", .data = rpi_3_ids },
+	{ .compatible = "raspberrypi,3-model-b", .data = rpi_3_ids },
+	{ .compatible = "raspberrypi,3-model-b-plus", .data = rpi_3_ids },
+	{ .compatible = "raspberrypi,model-zero-2-w", .data = rpi_3_ids },
+	{ .compatible = "raspberrypi,3-compute-module", .data = rpi_3_ids },
+	{ .compatible = "raspberrypi,3-compute-module-lite", .data = rpi_3_ids },
 
 	{ /* sentinel */ },
 };
-- 
2.30.2


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