hdp_load.c
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/*
* Copyright 2017-2018 NXP
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <command.h>
#include "API_General.h"
#include "scfw_utils.h"
DECLARE_GLOBAL_DATA_PTR;
#define ON 1
#define OFF 0
static void display_set_power(int onoff)
{
SC_PM_SET_RESOURCE_POWER_MODE(-1, SC_R_DC_0, onoff);
SC_PM_SET_RESOURCE_POWER_MODE(-1, SC_R_HDMI, onoff);
}
static void display_set_clocks(void)
{
const sc_pm_clock_rate_t pll = 800000000;
const sc_pm_clock_rate_t hdmi_core_clock = pll / 4; /* 200 Mhz */
const sc_pm_clock_rate_t hdmi_bus_clock = pll / 8; /* 100 Mhz */
SC_PM_SET_RESOURCE_POWER_MODE(-1,
SC_R_HDMI_PLL_0, SC_PM_PW_MODE_OFF);
SC_PM_SET_CLOCK_RATE(-1,
SC_R_HDMI_PLL_0, SC_PM_CLK_PLL, pll);
SC_PM_SET_RESOURCE_POWER_MODE(-1,
SC_R_HDMI_PLL_0, SC_PM_PW_MODE_ON);
/* HDMI DI Bus Clock */
SC_PM_SET_CLOCK_RATE(-1,
SC_R_HDMI, SC_PM_CLK_MISC4, hdmi_bus_clock);
/* HDMI DI Core Clock */
SC_PM_SET_CLOCK_RATE(-1,
SC_R_HDMI, SC_PM_CLK_MISC2, hdmi_core_clock);
}
static void display_enable_clocks(int enable)
{
SC_PM_CLOCK_ENABLE(-1, SC_R_HDMI_PLL_0, SC_PM_CLK_PLL, enable);
SC_PM_CLOCK_ENABLE(-1, SC_R_HDMI, SC_PM_CLK_MISC2, enable);
SC_PM_CLOCK_ENABLE(-1, SC_R_HDMI, SC_PM_CLK_MISC4, enable);
if (enable == OFF)
SC_PM_SET_RESOURCE_POWER_MODE(-1,
SC_R_HDMI_PLL_0, SC_PM_PW_MODE_OFF);
}
int do_hdp(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
{
if (argc < 2)
return 0;
if (strncmp(argv[1], "tracescfw", 9) == 0) {
g_debug_scfw = 1;
printf("Enabled SCFW API tracing\n");
} else if (strncmp(argv[1], "load", 4) == 0) {
unsigned long address = 0;
unsigned long offset = 0x2000;
const int iram_size = 0x10000;
const int dram_size = 0x8000;
const char *s;
if (argc > 2) {
address = simple_strtoul(argv[2], NULL, 0);
if (argc > 3)
offset = simple_strtoul(argv[3], NULL, 0);
} else {
printf("Missing address\n");
}
printf("Loading hdp firmware from 0x%016lx offset 0x%016lx\n",
address, offset);
display_set_power(SC_PM_PW_MODE_ON);
display_set_clocks();
display_enable_clocks(ON);
cdn_api_loadfirmware((unsigned char *)(address + offset),
iram_size,
(unsigned char *)(address + offset +
iram_size),
dram_size);
s = env_get("hdp_authenticate_fw");
if (s && !strcmp(s, "yes"))
SC_MISC_AUTH(-1, SC_SECO_AUTH_HDMI_TX_FW, 0);
display_enable_clocks(OFF);
printf("Loading hdp firmware Complete\n");
/* do not turn off hdmi power or firmware load will be lost */
} else {
printf("test error argc %d\n", argc);
}
return 0;
}
/***************************************************/
U_BOOT_CMD(
hdp, CONFIG_SYS_MAXARGS, 1, do_hdp,
"load hdmi firmware ",
"[<command>] ...\n"
"hdpload [address] [<offset>]\n"
" address - address where the binary image starts\n"
" <offset> - IRAM offset in the binary image (8192 default)\n"
"\n"
" if \"hdp_authenticate_fw\" is set to \"yes\", the seco\n"
" will authenticate the firmware and load HDCP keys.\n"
"\n"
"tracescfw - Trace SCFW API calls for video commands\n"
);