/*
- * (C) Copyright 2012-2013 Stephen Warren
+ * (C) Copyright 2012-2013,2015 Stephen Warren
*
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
+ * SPDX-License-Identifier: GPL-2.0
*/
#include <common.h>
#include <config.h>
#include <dm.h>
#include <fdt_support.h>
+#include <fdt_simplefb.h>
#include <lcd.h>
+#include <memalign.h>
#include <mmc.h>
#include <asm/gpio.h>
#include <asm/arch/mbox.h>
};
static const struct pl01x_serial_platdata serial_platdata = {
+#ifdef CONFIG_BCM2836
+ .base = 0x3f201000,
+#else
.base = 0x20201000,
+#endif
.type = TYPE_PL011,
.clock = 3000000,
};
u32 end_tag;
};
-/* See comments in mbox.h for data source */
-static const struct {
+/*
+ * http://raspberryalphaomega.org.uk/2013/02/06/automatic-raspberry-pi-board-revision-detection-model-a-b1-and-b2/
+ * http://www.raspberrypi.org/forums/viewtopic.php?f=63&t=32733
+ * http://git.drogon.net/?p=wiringPi;a=blob;f=wiringPi/wiringPi.c;h=503151f61014418b9c42f4476a6086f75cd4e64b;hb=refs/heads/master#l922
+ *
+ * In http://lists.denx.de/pipermail/u-boot/2016-January/243752.html
+ * ("[U-Boot] [PATCH] rpi: fix up Model B entries") Dom Cobley at the RPi
+ * Foundation stated that the following source was accurate:
+ * https://github.com/AndrewFromMelbourne/raspberry_pi_revision
+ */
+struct rpi_model {
const char *name;
const char *fdtfile;
bool has_onboard_eth;
-} models[] = {
- [BCM2835_BOARD_REV_B_I2C0_2] = {
- "Model B (no P5)",
- "bcm2835-rpi-b-i2c0.dtb",
+};
+
+static const struct rpi_model rpi_model_unknown = {
+ "Unknown model",
+#ifdef CONFIG_BCM2836
+ "bcm2836-rpi-other.dtb",
+#else
+ "bcm2835-rpi-other.dtb",
+#endif
+ false,
+};
+
+static const struct rpi_model rpi_models_new_scheme[] = {
+ [0x4] = {
+ "2 Model B",
+ "bcm2836-rpi-2-b.dtb",
true,
},
- [BCM2835_BOARD_REV_B_I2C0_3] = {
- "Model B (no P5)",
- "bcm2835-rpi-b-i2c0.dtb",
- true,
+ [0x9] = {
+ "Zero",
+ "bcm2835-rpi-zero.dtb",
+ false,
},
- [BCM2835_BOARD_REV_B_I2C1_4] = {
+};
+
+static const struct rpi_model rpi_models_old_scheme[] = {
+ [0x2] = {
"Model B",
"bcm2835-rpi-b.dtb",
true,
},
- [BCM2835_BOARD_REV_B_I2C1_5] = {
+ [0x3] = {
"Model B",
"bcm2835-rpi-b.dtb",
true,
},
- [BCM2835_BOARD_REV_B_I2C1_6] = {
- "Model B",
- "bcm2835-rpi-b.dtb",
+ [0x4] = {
+ "Model B rev2",
+ "bcm2835-rpi-b-rev2.dtb",
+ true,
+ },
+ [0x5] = {
+ "Model B rev2",
+ "bcm2835-rpi-b-rev2.dtb",
true,
},
- [BCM2835_BOARD_REV_A_7] = {
+ [0x6] = {
+ "Model B rev2",
+ "bcm2835-rpi-b-rev2.dtb",
+ true,
+ },
+ [0x7] = {
"Model A",
"bcm2835-rpi-a.dtb",
false,
},
- [BCM2835_BOARD_REV_A_8] = {
+ [0x8] = {
"Model A",
"bcm2835-rpi-a.dtb",
false,
},
- [BCM2835_BOARD_REV_A_9] = {
+ [0x9] = {
"Model A",
"bcm2835-rpi-a.dtb",
false,
},
- [BCM2835_BOARD_REV_B_REV2_d] = {
+ [0xd] = {
"Model B rev2",
"bcm2835-rpi-b-rev2.dtb",
true,
},
- [BCM2835_BOARD_REV_B_REV2_e] = {
+ [0xe] = {
"Model B rev2",
"bcm2835-rpi-b-rev2.dtb",
true,
},
- [BCM2835_BOARD_REV_B_REV2_f] = {
+ [0xf] = {
"Model B rev2",
"bcm2835-rpi-b-rev2.dtb",
true,
},
- [BCM2835_BOARD_REV_B_PLUS] = {
+ [0x10] = {
+ "Model B+",
+ "bcm2835-rpi-b-plus.dtb",
+ true,
+ },
+ [0x11] = {
+ "Compute Module",
+ "bcm2835-rpi-cm.dtb",
+ false,
+ },
+ [0x12] = {
+ "Model A+",
+ "bcm2835-rpi-a-plus.dtb",
+ false,
+ },
+ [0x13] = {
"Model B+",
"bcm2835-rpi-b-plus.dtb",
true,
},
- [BCM2835_BOARD_REV_CM] = {
+ [0x14] = {
"Compute Module",
"bcm2835-rpi-cm.dtb",
false,
},
+ [0x15] = {
+ "Model A+",
+ "bcm2835-rpi-a-plus.dtb",
+ false,
+ },
};
-u32 rpi_board_rev = 0;
+static uint32_t revision;
+static uint32_t rev_scheme;
+static uint32_t rev_type;
+static const struct rpi_model *model;
int dram_init(void)
{
- ALLOC_ALIGN_BUFFER(struct msg_get_arm_mem, msg, 1, 16);
+ ALLOC_CACHE_ALIGN_BUFFER(struct msg_get_arm_mem, msg, 1);
int ret;
BCM2835_MBOX_INIT_HDR(msg);
if (getenv("fdtfile"))
return;
- fdtfile = models[rpi_board_rev].fdtfile;
- if (!fdtfile)
- fdtfile = "bcm2835-rpi-other.dtb";
-
+ fdtfile = model->fdtfile;
setenv("fdtfile", fdtfile);
}
static void set_usbethaddr(void)
{
- ALLOC_ALIGN_BUFFER(struct msg_get_mac_address, msg, 1, 16);
+ ALLOC_CACHE_ALIGN_BUFFER(struct msg_get_mac_address, msg, 1);
int ret;
- if (!models[rpi_board_rev].has_onboard_eth)
+ if (!model->has_onboard_eth)
return;
if (getenv("usbethaddr"))
eth_setenv_enetaddr("usbethaddr", msg->get_mac_address.body.resp.mac);
+ if (!getenv("ethaddr"))
+ setenv("ethaddr", getenv("usbethaddr"));
+
return;
}
+#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
+static void set_board_info(void)
+{
+ char s[11];
+
+ snprintf(s, sizeof(s), "0x%X", revision);
+ setenv("board_revision", s);
+ snprintf(s, sizeof(s), "%d", rev_scheme);
+ setenv("board_rev_scheme", s);
+ /* Can't rename this to board_rev_type since it's an ABI for scripts */
+ snprintf(s, sizeof(s), "0x%X", rev_type);
+ setenv("board_rev", s);
+ setenv("board_name", model->name);
+}
+#endif /* CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG */
+
int misc_init_r(void)
{
set_fdtfile();
set_usbethaddr();
+#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
+ set_board_info();
+#endif
return 0;
}
static int power_on_module(u32 module)
{
- ALLOC_ALIGN_BUFFER(struct msg_set_power_state, msg_pwr, 1, 16);
+ ALLOC_CACHE_ALIGN_BUFFER(struct msg_set_power_state, msg_pwr, 1);
int ret;
BCM2835_MBOX_INIT_HDR(msg_pwr);
static void get_board_rev(void)
{
- ALLOC_ALIGN_BUFFER(struct msg_get_board_rev, msg, 1, 16);
+ ALLOC_CACHE_ALIGN_BUFFER(struct msg_get_board_rev, msg, 1);
int ret;
- const char *name;
+ const struct rpi_model *models;
+ uint32_t models_count;
BCM2835_MBOX_INIT_HDR(msg);
BCM2835_MBOX_INIT_TAG(&msg->get_board_rev, GET_BOARD_REV);
return;
}
- rpi_board_rev = msg->get_board_rev.body.resp.rev;
- if (rpi_board_rev >= ARRAY_SIZE(models))
- rpi_board_rev = 0;
+ /*
+ * For details of old-vs-new scheme, see:
+ * https://github.com/pimoroni/RPi.version/blob/master/RPi/version.py
+ * http://www.raspberrypi.org/forums/viewtopic.php?f=63&t=99293&p=690282
+ * (a few posts down)
+ *
+ * For the RPi 1, bit 24 is the "warranty bit", so we mask off just the
+ * lower byte to use as the board rev:
+ * http://www.raspberrypi.org/forums/viewtopic.php?f=63&t=98367&start=250
+ * http://www.raspberrypi.org/forums/viewtopic.php?f=31&t=20594
+ */
+ revision = msg->get_board_rev.body.resp.rev;
+ if (revision & 0x800000) {
+ rev_scheme = 1;
+ rev_type = (revision >> 4) & 0xff;
+ models = rpi_models_new_scheme;
+ models_count = ARRAY_SIZE(rpi_models_new_scheme);
+ } else {
+ rev_scheme = 0;
+ rev_type = revision & 0xff;
+ models = rpi_models_old_scheme;
+ models_count = ARRAY_SIZE(rpi_models_old_scheme);
+ }
+ if (rev_type >= models_count) {
+ printf("RPI: Board rev 0x%x outside known range\n", rev_type);
+ model = &rpi_model_unknown;
+ } else if (!models[rev_type].name) {
+ printf("RPI: Board rev 0x%x unknown\n", rev_type);
+ model = &rpi_model_unknown;
+ } else {
+ model = &models[rev_type];
+ }
- name = models[rpi_board_rev].name;
- if (!name)
- name = "Unknown model";
- printf("RPI model: %s\n", name);
+ printf("RPI %s (0x%x)\n", model->name, revision);
}
int board_init(void)
int board_mmc_init(bd_t *bis)
{
- ALLOC_ALIGN_BUFFER(struct msg_get_clock_rate, msg_clk, 1, 16);
+ ALLOC_CACHE_ALIGN_BUFFER(struct msg_get_clock_rate, msg_clk, 1);
int ret;
power_on_module(BCM2835_MBOX_POWER_DEVID_SDHCI);
projects / u-boot / blobdiff