Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / board / raspberrypi / rpi_b / rpi_b.c

diff --git a/qemu/roms/u-boot/board/raspberrypi/rpi_b/rpi_b.c b/qemu/roms/u-boot/board/raspberrypi/rpi_b/rpi_b.c
new file mode 100644 (file)
index 0000000..f33fae9
--- /dev/null
+++ b/qemu/roms/u-boot/board/raspberrypi/rpi_b/rpi_b.c
@@ -0,0 +1,123 @@
+/*
+ * (C) Copyright 2012-2013 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.
+ */
+
+#include <common.h>
+#include <config.h>
+#include <lcd.h>
+#include <asm/arch/mbox.h>
+#include <asm/arch/sdhci.h>
+#include <asm/global_data.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+struct msg_get_arm_mem {
+       struct bcm2835_mbox_hdr hdr;
+       struct bcm2835_mbox_tag_get_arm_mem get_arm_mem;
+       u32 end_tag;
+};
+
+struct msg_set_power_state {
+       struct bcm2835_mbox_hdr hdr;
+       struct bcm2835_mbox_tag_set_power_state set_power_state;
+       u32 end_tag;
+};
+
+struct msg_get_clock_rate {
+       struct bcm2835_mbox_hdr hdr;
+       struct bcm2835_mbox_tag_get_clock_rate get_clock_rate;
+       u32 end_tag;
+};
+
+int dram_init(void)
+{
+       ALLOC_ALIGN_BUFFER(struct msg_get_arm_mem, msg, 1, 16);
+       int ret;
+
+       BCM2835_MBOX_INIT_HDR(msg);
+       BCM2835_MBOX_INIT_TAG(&msg->get_arm_mem, GET_ARM_MEMORY);
+
+       ret = bcm2835_mbox_call_prop(BCM2835_MBOX_PROP_CHAN, &msg->hdr);
+       if (ret) {
+               printf("bcm2835: Could not query ARM memory size\n");
+               return -1;
+       }
+
+       gd->ram_size = msg->get_arm_mem.body.resp.mem_size;
+
+       return 0;
+}
+
+static int power_on_module(u32 module)
+{
+       ALLOC_ALIGN_BUFFER(struct msg_set_power_state, msg_pwr, 1, 16);
+       int ret;
+
+       BCM2835_MBOX_INIT_HDR(msg_pwr);
+       BCM2835_MBOX_INIT_TAG(&msg_pwr->set_power_state,
+                             SET_POWER_STATE);
+       msg_pwr->set_power_state.body.req.device_id = module;
+       msg_pwr->set_power_state.body.req.state =
+               BCM2835_MBOX_SET_POWER_STATE_REQ_ON |
+               BCM2835_MBOX_SET_POWER_STATE_REQ_WAIT;
+
+       ret = bcm2835_mbox_call_prop(BCM2835_MBOX_PROP_CHAN,
+                                    &msg_pwr->hdr);
+       if (ret) {
+               printf("bcm2835: Could not set module %u power state\n",
+                      module);
+               return -1;
+       }
+
+       return 0;
+}
+
+int board_init(void)
+{
+       gd->bd->bi_boot_params = 0x100;
+
+       return power_on_module(BCM2835_MBOX_POWER_DEVID_USB_HCD);
+}
+
+int board_mmc_init(void)
+{
+       ALLOC_ALIGN_BUFFER(struct msg_get_clock_rate, msg_clk, 1, 16);
+       int ret;
+
+       power_on_module(BCM2835_MBOX_POWER_DEVID_SDHCI);
+
+       BCM2835_MBOX_INIT_HDR(msg_clk);
+       BCM2835_MBOX_INIT_TAG(&msg_clk->get_clock_rate, GET_CLOCK_RATE);
+       msg_clk->get_clock_rate.body.req.clock_id = BCM2835_MBOX_CLOCK_ID_EMMC;
+
+       ret = bcm2835_mbox_call_prop(BCM2835_MBOX_PROP_CHAN, &msg_clk->hdr);
+       if (ret) {
+               printf("bcm2835: Could not query eMMC clock rate\n");
+               return -1;
+       }
+
+       return bcm2835_sdhci_init(BCM2835_SDHCI_BASE,
+                                 msg_clk->get_clock_rate.body.resp.rate_hz);
+}
+
+void ft_board_setup(void *blob, bd_t *bd)
+{
+       /*
+        * For now, we simply always add the simplefb DT node. Later, we
+        * should be more intelligent, and e.g. only do this if no enabled DT
+        * node exists for the "real" graphics driver.
+        */
+       lcd_dt_simplefb_add_node(blob);
+}