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authorAlbert ARIBAUD <albert.u.boot@aribaud.net>2013-03-28 18:50:01 +0100
committerAlbert ARIBAUD <albert.u.boot@aribaud.net>2013-03-28 18:50:01 +0100
commit009d75ccc11d27b9a083375a88bb93cb746b4800 (patch)
tree12abe9fcf437d58b73ee1fa8d422548560deaae5 /board/raspberrypi/rpi_b/rpi_b.c
parent417c55803118eb8e350d5ab8ba6583fb39f4e2e3 (diff)
parentd53e340edf65ff253d3a7b06ebe60501045892e3 (diff)
downloadu-boot-009d75ccc11d27b9a083375a88bb93cb746b4800.tar.gz
Merge branch 'u-boot/master' into 'u-boot-arm/master'
Conflicts: drivers/spi/tegra20_sflash.c include/fdtdec.h lib/fdtdec.c
Diffstat (limited to 'board/raspberrypi/rpi_b/rpi_b.c')
-rw-r--r--board/raspberrypi/rpi_b/rpi_b.c47
1 files changed, 46 insertions, 1 deletions
diff --git a/board/raspberrypi/rpi_b/rpi_b.c b/board/raspberrypi/rpi_b/rpi_b.c
index 688b0aade1..6b3e095ba8 100644
--- a/board/raspberrypi/rpi_b/rpi_b.c
+++ b/board/raspberrypi/rpi_b/rpi_b.c
@@ -15,13 +15,39 @@
*/
#include <common.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_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)
{
- gd->ram_size = CONFIG_SYS_SDRAM_SIZE;
+ 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;
}
@@ -32,3 +58,22 @@ int board_init(void)
return 0;
}
+
+int board_mmc_init(void)
+{
+ ALLOC_ALIGN_BUFFER(struct msg_get_clock_rate, msg_clk, 1, 16);
+ int ret;
+
+ 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);
+}