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![Simon Glass](/assets/img/avatar_default.png)
Now that we have a new header file for cache-aligned allocation, we should move the stack-based allocation macro there also. Signed-off-by: Simon Glass <sjg@chromium.org>
358 lines
7.4 KiB
C
358 lines
7.4 KiB
C
/*
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* (C) Copyright 2012-2013,2015 Stephen Warren
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*
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* SPDX-License-Identifier: GPL-2.0
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*/
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#include <common.h>
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#include <config.h>
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#include <dm.h>
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#include <fdt_support.h>
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#include <fdt_simplefb.h>
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#include <lcd.h>
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#include <memalign.h>
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#include <mmc.h>
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#include <asm/gpio.h>
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#include <asm/arch/mbox.h>
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#include <asm/arch/sdhci.h>
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#include <asm/global_data.h>
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#include <dm/platform_data/serial_pl01x.h>
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DECLARE_GLOBAL_DATA_PTR;
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static const struct bcm2835_gpio_platdata gpio_platdata = {
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.base = BCM2835_GPIO_BASE,
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};
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U_BOOT_DEVICE(bcm2835_gpios) = {
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.name = "gpio_bcm2835",
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.platdata = &gpio_platdata,
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};
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static const struct pl01x_serial_platdata serial_platdata = {
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#ifdef CONFIG_BCM2836
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.base = 0x3f201000,
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#else
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.base = 0x20201000,
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#endif
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.type = TYPE_PL011,
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.clock = 3000000,
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};
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U_BOOT_DEVICE(bcm2835_serials) = {
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.name = "serial_pl01x",
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.platdata = &serial_platdata,
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};
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struct msg_get_arm_mem {
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struct bcm2835_mbox_hdr hdr;
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struct bcm2835_mbox_tag_get_arm_mem get_arm_mem;
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u32 end_tag;
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};
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struct msg_get_board_rev {
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struct bcm2835_mbox_hdr hdr;
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struct bcm2835_mbox_tag_get_board_rev get_board_rev;
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u32 end_tag;
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};
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struct msg_get_mac_address {
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struct bcm2835_mbox_hdr hdr;
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struct bcm2835_mbox_tag_get_mac_address get_mac_address;
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u32 end_tag;
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};
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struct msg_set_power_state {
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struct bcm2835_mbox_hdr hdr;
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struct bcm2835_mbox_tag_set_power_state set_power_state;
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u32 end_tag;
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};
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struct msg_get_clock_rate {
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struct bcm2835_mbox_hdr hdr;
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struct bcm2835_mbox_tag_get_clock_rate get_clock_rate;
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u32 end_tag;
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};
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/* See comments in mbox.h for data source */
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static const struct {
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const char *name;
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const char *fdtfile;
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bool has_onboard_eth;
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} models[] = {
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[0] = {
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"Unknown model",
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#ifdef CONFIG_BCM2836
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"bcm2836-rpi-other.dtb",
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#else
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"bcm2835-rpi-other.dtb",
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#endif
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false,
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},
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#ifdef CONFIG_BCM2836
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[BCM2836_BOARD_REV_2_B] = {
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"2 Model B",
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"bcm2836-rpi-2-b.dtb",
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true,
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},
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#else
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[BCM2835_BOARD_REV_B_I2C0_2] = {
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"Model B (no P5)",
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"bcm2835-rpi-b-i2c0.dtb",
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true,
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},
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[BCM2835_BOARD_REV_B_I2C0_3] = {
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"Model B (no P5)",
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"bcm2835-rpi-b-i2c0.dtb",
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true,
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},
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[BCM2835_BOARD_REV_B_I2C1_4] = {
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"Model B",
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"bcm2835-rpi-b.dtb",
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true,
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},
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[BCM2835_BOARD_REV_B_I2C1_5] = {
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"Model B",
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"bcm2835-rpi-b.dtb",
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true,
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},
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[BCM2835_BOARD_REV_B_I2C1_6] = {
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"Model B",
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"bcm2835-rpi-b.dtb",
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true,
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},
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[BCM2835_BOARD_REV_A_7] = {
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"Model A",
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"bcm2835-rpi-a.dtb",
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false,
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},
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[BCM2835_BOARD_REV_A_8] = {
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"Model A",
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"bcm2835-rpi-a.dtb",
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false,
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},
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[BCM2835_BOARD_REV_A_9] = {
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"Model A",
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"bcm2835-rpi-a.dtb",
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false,
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},
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[BCM2835_BOARD_REV_B_REV2_d] = {
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"Model B rev2",
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"bcm2835-rpi-b-rev2.dtb",
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true,
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},
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[BCM2835_BOARD_REV_B_REV2_e] = {
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"Model B rev2",
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"bcm2835-rpi-b-rev2.dtb",
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true,
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},
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[BCM2835_BOARD_REV_B_REV2_f] = {
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"Model B rev2",
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"bcm2835-rpi-b-rev2.dtb",
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true,
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},
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[BCM2835_BOARD_REV_B_PLUS] = {
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"Model B+",
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"bcm2835-rpi-b-plus.dtb",
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true,
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},
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[BCM2835_BOARD_REV_CM] = {
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"Compute Module",
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"bcm2835-rpi-cm.dtb",
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false,
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},
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[BCM2835_BOARD_REV_A_PLUS] = {
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"Model A+",
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"bcm2835-rpi-a-plus.dtb",
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false,
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},
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[BCM2835_BOARD_REV_B_PLUS_13] = {
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"Model B+",
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"bcm2835-rpi-b-plus.dtb",
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true,
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},
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[BCM2835_BOARD_REV_CM_14] = {
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"Compute Module",
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"bcm2835-rpi-cm.dtb",
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false,
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},
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#endif
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};
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u32 rpi_board_rev = 0;
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int dram_init(void)
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{
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ALLOC_CACHE_ALIGN_BUFFER(struct msg_get_arm_mem, msg, 1);
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int ret;
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BCM2835_MBOX_INIT_HDR(msg);
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BCM2835_MBOX_INIT_TAG(&msg->get_arm_mem, GET_ARM_MEMORY);
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ret = bcm2835_mbox_call_prop(BCM2835_MBOX_PROP_CHAN, &msg->hdr);
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if (ret) {
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printf("bcm2835: Could not query ARM memory size\n");
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return -1;
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}
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gd->ram_size = msg->get_arm_mem.body.resp.mem_size;
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return 0;
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}
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static void set_fdtfile(void)
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{
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const char *fdtfile;
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if (getenv("fdtfile"))
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return;
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fdtfile = models[rpi_board_rev].fdtfile;
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setenv("fdtfile", fdtfile);
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}
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static void set_usbethaddr(void)
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{
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ALLOC_CACHE_ALIGN_BUFFER(struct msg_get_mac_address, msg, 1);
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int ret;
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if (!models[rpi_board_rev].has_onboard_eth)
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return;
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if (getenv("usbethaddr"))
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return;
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BCM2835_MBOX_INIT_HDR(msg);
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BCM2835_MBOX_INIT_TAG(&msg->get_mac_address, GET_MAC_ADDRESS);
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ret = bcm2835_mbox_call_prop(BCM2835_MBOX_PROP_CHAN, &msg->hdr);
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if (ret) {
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printf("bcm2835: Could not query MAC address\n");
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/* Ignore error; not critical */
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return;
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}
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eth_setenv_enetaddr("usbethaddr", msg->get_mac_address.body.resp.mac);
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return;
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}
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int misc_init_r(void)
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{
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set_fdtfile();
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set_usbethaddr();
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return 0;
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}
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static int power_on_module(u32 module)
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{
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ALLOC_CACHE_ALIGN_BUFFER(struct msg_set_power_state, msg_pwr, 1);
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int ret;
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BCM2835_MBOX_INIT_HDR(msg_pwr);
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BCM2835_MBOX_INIT_TAG(&msg_pwr->set_power_state,
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SET_POWER_STATE);
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msg_pwr->set_power_state.body.req.device_id = module;
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msg_pwr->set_power_state.body.req.state =
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BCM2835_MBOX_SET_POWER_STATE_REQ_ON |
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BCM2835_MBOX_SET_POWER_STATE_REQ_WAIT;
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ret = bcm2835_mbox_call_prop(BCM2835_MBOX_PROP_CHAN,
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&msg_pwr->hdr);
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if (ret) {
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printf("bcm2835: Could not set module %u power state\n",
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module);
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return -1;
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}
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return 0;
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}
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static void get_board_rev(void)
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{
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ALLOC_CACHE_ALIGN_BUFFER(struct msg_get_board_rev, msg, 1);
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int ret;
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const char *name;
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BCM2835_MBOX_INIT_HDR(msg);
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BCM2835_MBOX_INIT_TAG(&msg->get_board_rev, GET_BOARD_REV);
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ret = bcm2835_mbox_call_prop(BCM2835_MBOX_PROP_CHAN, &msg->hdr);
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if (ret) {
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printf("bcm2835: Could not query board revision\n");
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/* Ignore error; not critical */
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return;
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}
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/*
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* For details of old-vs-new scheme, see:
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* https://github.com/pimoroni/RPi.version/blob/master/RPi/version.py
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* http://www.raspberrypi.org/forums/viewtopic.php?f=63&t=99293&p=690282
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* (a few posts down)
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*
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* For the RPi 1, bit 24 is the "warranty bit", so we mask off just the
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* lower byte to use as the board rev:
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* http://www.raspberrypi.org/forums/viewtopic.php?f=63&t=98367&start=250
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* http://www.raspberrypi.org/forums/viewtopic.php?f=31&t=20594
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*/
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rpi_board_rev = msg->get_board_rev.body.resp.rev;
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if (rpi_board_rev & 0x800000)
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rpi_board_rev = (rpi_board_rev >> 4) & 0xff;
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else
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rpi_board_rev &= 0xff;
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if (rpi_board_rev >= ARRAY_SIZE(models)) {
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printf("RPI: Board rev %u outside known range\n",
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rpi_board_rev);
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rpi_board_rev = 0;
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}
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if (!models[rpi_board_rev].name) {
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printf("RPI: Board rev %u unknown\n", rpi_board_rev);
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rpi_board_rev = 0;
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}
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name = models[rpi_board_rev].name;
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printf("RPI %s\n", name);
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}
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int board_init(void)
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{
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get_board_rev();
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gd->bd->bi_boot_params = 0x100;
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return power_on_module(BCM2835_MBOX_POWER_DEVID_USB_HCD);
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}
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int board_mmc_init(bd_t *bis)
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{
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ALLOC_CACHE_ALIGN_BUFFER(struct msg_get_clock_rate, msg_clk, 1);
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int ret;
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power_on_module(BCM2835_MBOX_POWER_DEVID_SDHCI);
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BCM2835_MBOX_INIT_HDR(msg_clk);
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BCM2835_MBOX_INIT_TAG(&msg_clk->get_clock_rate, GET_CLOCK_RATE);
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msg_clk->get_clock_rate.body.req.clock_id = BCM2835_MBOX_CLOCK_ID_EMMC;
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ret = bcm2835_mbox_call_prop(BCM2835_MBOX_PROP_CHAN, &msg_clk->hdr);
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if (ret) {
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printf("bcm2835: Could not query eMMC clock rate\n");
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return -1;
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}
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return bcm2835_sdhci_init(BCM2835_SDHCI_BASE,
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msg_clk->get_clock_rate.body.resp.rate_hz);
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}
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int ft_board_setup(void *blob, bd_t *bd)
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{
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/*
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* For now, we simply always add the simplefb DT node. Later, we
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* should be more intelligent, and e.g. only do this if no enabled DT
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* node exists for the "real" graphics driver.
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*/
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lcd_dt_simplefb_add_node(blob);
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return 0;
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}
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