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Add support for payloads with broken hw inits

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This commit is contained in:
Kostas Missos 2018-09-19 00:46:32 +03:00
parent b54cbbfc3c
commit 89fb29e35e
1 changed files with 12 additions and 3 deletions
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15
bootloader/main.c
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@ -449,7 +449,7 @@ void config_hw()
sdram_init();
}
void reconfig_hw_workaround(bool extra_reconfig)
void reconfig_hw_workaround(bool extra_reconfig, u32 magic)
{
// Re-enable clocks to Audio Processing Engine as a workaround to hanging.
CLOCK(CLK_RST_CONTROLLER_CLK_OUT_ENB_V) |= 0x400; // Enable AHUB clock.
@ -470,6 +470,15 @@ void reconfig_hw_workaround(bool extra_reconfig)
// Power off display.
display_end();
// Enable clock to USBD and init SDMMC1 to avoid hangs with bad hw inits.
if (magic == 0xBAADF00D)
{
CLOCK(CLK_RST_CONTROLLER_CLK_OUT_ENB_L) |= (1 << 22);
sdmmc_init(&sd_sdmmc, SDMMC_1, SDMMC_POWER_3_3, SDMMC_BUS_WIDTH_1, 5, 0);
msleep(500);
}
}
void print_fuseinfo()
@ -1857,14 +1866,14 @@ int launch_payload(char *path, bool update)
{
if (!update)
reloc_patcher(ALIGN(size, 0x10));
reconfig_hw_workaround(false);
reconfig_hw_workaround(false, byte_swap_32(*(u32 *)(buf + size - sizeof(u32))));
}
else
{
reloc_patcher(0x7000);
if (*(vu32 *)CBFS_SDRAM_EN_ADDR != 0x4452414D)
return 1;
reconfig_hw_workaround(true);
reconfig_hw_workaround(true, 0);
}
// Launch our payload.