+// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2012 Stephen Warren
- *
- * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <memalign.h>
+#include <phys2bus.h>
#include <asm/arch/mbox.h>
struct msg_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;
+};
+
+struct msg_query {
+ struct bcm2835_mbox_hdr hdr;
+ struct bcm2835_mbox_tag_physical_w_h physical_w_h;
+ u32 end_tag;
+};
+
+struct msg_setup {
+ struct bcm2835_mbox_hdr hdr;
+ struct bcm2835_mbox_tag_physical_w_h physical_w_h;
+ struct bcm2835_mbox_tag_virtual_w_h virtual_w_h;
+ struct bcm2835_mbox_tag_depth depth;
+ struct bcm2835_mbox_tag_pixel_order pixel_order;
+ struct bcm2835_mbox_tag_alpha_mode alpha_mode;
+ struct bcm2835_mbox_tag_virtual_offset virtual_offset;
+ struct bcm2835_mbox_tag_overscan overscan;
+ struct bcm2835_mbox_tag_allocate_buffer allocate_buffer;
+ struct bcm2835_mbox_tag_pitch pitch;
+ u32 end_tag;
+};
+
int bcm2835_power_on_module(u32 module)
{
ALLOC_CACHE_ALIGN_BUFFER(struct msg_set_power_state, msg_pwr, 1);
return 0;
}
+
+int bcm2835_get_mmc_clock(u32 clock_id)
+{
+ ALLOC_CACHE_ALIGN_BUFFER(struct msg_get_clock_rate, msg_clk, 1);
+ int ret;
+
+ ret = bcm2835_power_on_module(BCM2835_MBOX_POWER_DEVID_SDHCI);
+ if (ret)
+ return 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 = clock_id;
+
+ ret = bcm2835_mbox_call_prop(BCM2835_MBOX_PROP_CHAN, &msg_clk->hdr);
+ if (ret) {
+ printf("bcm2835: Could not query eMMC clock rate\n");
+ return -EIO;
+ }
+
+ return msg_clk->get_clock_rate.body.resp.rate_hz;
+}
+
+int bcm2835_get_video_size(int *widthp, int *heightp)
+{
+ ALLOC_CACHE_ALIGN_BUFFER(struct msg_query, msg_query, 1);
+ int ret;
+
+ BCM2835_MBOX_INIT_HDR(msg_query);
+ BCM2835_MBOX_INIT_TAG_NO_REQ(&msg_query->physical_w_h,
+ GET_PHYSICAL_W_H);
+ ret = bcm2835_mbox_call_prop(BCM2835_MBOX_PROP_CHAN, &msg_query->hdr);
+ if (ret) {
+ printf("bcm2835: Could not query display resolution\n");
+ return ret;
+ }
+ *widthp = msg_query->physical_w_h.body.resp.width;
+ *heightp = msg_query->physical_w_h.body.resp.height;
+
+ return 0;
+}
+
+int bcm2835_set_video_params(int *widthp, int *heightp, int depth_bpp,
+ int pixel_order, int alpha_mode, ulong *fb_basep,
+ ulong *fb_sizep, int *pitchp)
+{
+ ALLOC_CACHE_ALIGN_BUFFER(struct msg_setup, msg_setup, 1);
+ int ret;
+
+ BCM2835_MBOX_INIT_HDR(msg_setup);
+ BCM2835_MBOX_INIT_TAG(&msg_setup->physical_w_h, SET_PHYSICAL_W_H);
+ msg_setup->physical_w_h.body.req.width = *widthp;
+ msg_setup->physical_w_h.body.req.height = *heightp;
+ BCM2835_MBOX_INIT_TAG(&msg_setup->virtual_w_h, SET_VIRTUAL_W_H);
+ msg_setup->virtual_w_h.body.req.width = *widthp;
+ msg_setup->virtual_w_h.body.req.height = *heightp;
+ BCM2835_MBOX_INIT_TAG(&msg_setup->depth, SET_DEPTH);
+ msg_setup->depth.body.req.bpp = 32;
+ BCM2835_MBOX_INIT_TAG(&msg_setup->pixel_order, SET_PIXEL_ORDER);
+ msg_setup->pixel_order.body.req.order = pixel_order;
+ BCM2835_MBOX_INIT_TAG(&msg_setup->alpha_mode, SET_ALPHA_MODE);
+ msg_setup->alpha_mode.body.req.alpha = alpha_mode;
+ BCM2835_MBOX_INIT_TAG(&msg_setup->virtual_offset, SET_VIRTUAL_OFFSET);
+ msg_setup->virtual_offset.body.req.x = 0;
+ msg_setup->virtual_offset.body.req.y = 0;
+ BCM2835_MBOX_INIT_TAG(&msg_setup->overscan, SET_OVERSCAN);
+ msg_setup->overscan.body.req.top = 0;
+ msg_setup->overscan.body.req.bottom = 0;
+ msg_setup->overscan.body.req.left = 0;
+ msg_setup->overscan.body.req.right = 0;
+ BCM2835_MBOX_INIT_TAG(&msg_setup->allocate_buffer, ALLOCATE_BUFFER);
+ msg_setup->allocate_buffer.body.req.alignment = 0x100;
+ BCM2835_MBOX_INIT_TAG_NO_REQ(&msg_setup->pitch, GET_PITCH);
+
+ ret = bcm2835_mbox_call_prop(BCM2835_MBOX_PROP_CHAN, &msg_setup->hdr);
+ if (ret) {
+ printf("bcm2835: Could not configure display\n");
+ return ret;
+ }
+ *widthp = msg_setup->physical_w_h.body.resp.width;
+ *heightp = msg_setup->physical_w_h.body.resp.height;
+ *pitchp = msg_setup->pitch.body.resp.pitch;
+ *fb_basep = bus_to_phys(
+ msg_setup->allocate_buffer.body.resp.fb_address);
+ *fb_sizep = msg_setup->allocate_buffer.body.resp.fb_size;
+
+ return 0;
+}