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	1. Convert all linker symbols to char[] type so that we can get the
   corresponding address by calling array name 'var' or its address
   '&var'. In this way, we can avoid some potential issues[1].
2. Remove unused symbol '_TEXT_BASE'. It has been abandoned and has
   not been referenced by any source code.
3. Move '__data_end' to the arch x86's own sections header as it's
   only used by x86 arch.
4. Remove some duplicate declared linker symbols. Now we use the
   standard header file to declare them.
[1] This patch fixes the boot failure on MIPS target. Error log:
SPL: Image overlaps SPL
Fixes: 1b8a1be1a1f1 ("spl: spl_legacy: Fix spl_end address")
Signed-off-by: Shiji Yang <yangshiji66@outlook.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
		
	
			
		
			
				
	
	
		
			150 lines
		
	
	
		
			3.0 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			150 lines
		
	
	
		
			3.0 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| // SPDX-License-Identifier: GPL-2.0+
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| /*
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|  * Copyright 2021 NXP
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|  */
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| 
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| #include <common.h>
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| #include <init.h>
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| #include <spl.h>
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| #include <asm/io.h>
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| #include <errno.h>
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| #include <asm/arch/sys_proto.h>
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| #include <asm/arch/clock.h>
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| #include <asm/arch/imx8ulp-pins.h>
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| #include <dm/uclass.h>
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| #include <dm/device.h>
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| #include <dm/uclass-internal.h>
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| #include <dm/device-internal.h>
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| #include <dm/lists.h>
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| #include <asm/arch/ddr.h>
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| #include <asm/arch/rdc.h>
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| #include <asm/arch/upower.h>
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| #include <asm/mach-imx/ele_api.h>
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| #include <asm/sections.h>
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| 
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| DECLARE_GLOBAL_DATA_PTR;
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| 
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| void spl_dram_init(void)
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| {
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| 	/* Reboot in dual boot setting no need to init ddr again */
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| 	bool ddr_enable = pcc_clock_is_enable(5, LPDDR4_PCC5_SLOT);
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| 
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| 	if (!ddr_enable) {
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| 		init_clk_ddr();
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| 		ddr_init(&dram_timing);
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| 	} else {
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| 		/* reinit pfd/pfddiv and lpavnic except pll4*/
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| 		cgc2_pll4_init(false);
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| 	}
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| }
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| 
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| u32 spl_boot_device(void)
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| {
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| 	return BOOT_DEVICE_BOOTROM;
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| }
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| 
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| int power_init_board(void)
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| {
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| 	if (IS_ENABLED(CONFIG_IMX8ULP_LD_MODE)) {
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| 		/* Set buck3 to 0.9v LD */
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| 		upower_pmic_i2c_write(0x22, 0x18);
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| 	} else if (IS_ENABLED(CONFIG_IMX8ULP_ND_MODE)) {
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| 		/* Set buck3 to 1.0v ND */
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| 		upower_pmic_i2c_write(0x22, 0x20);
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| 	} else {
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| 		/* Set buck3 to 1.1v OD */
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| 		upower_pmic_i2c_write(0x22, 0x28);
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| 	}
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| 
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| 	return 0;
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| }
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| 
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| void display_ele_fw_version(void)
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| {
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| 	u32 fw_version, sha1, res;
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| 	int ret;
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| 
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| 	ret = ele_get_fw_version(&fw_version, &sha1, &res);
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| 	if (ret) {
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| 		printf("ele get firmware version failed %d, 0x%x\n", ret, res);
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| 	} else {
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| 		printf("ELE firmware version %u.%u.%u-%x",
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| 		       (fw_version & (0x00ff0000)) >> 16,
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| 		       (fw_version & (0x0000ff00)) >> 8,
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| 		       (fw_version & (0x000000ff)), sha1);
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| 		((fw_version & (0x80000000)) >> 31) == 1 ? puts("-dirty\n") : puts("\n");
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| 	}
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| }
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| 
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| void spl_board_init(void)
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| {
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| 	u32 res;
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| 	int ret;
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| 
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| 	ret = imx8ulp_dm_post_init();
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| 	if (ret)
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| 		return;
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| 
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| 	board_early_init_f();
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| 
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| 	preloader_console_init();
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| 
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| 	puts("Normal Boot\n");
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| 
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| 	display_ele_fw_version();
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| 
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| 	/* After AP set iomuxc0, the i2c can't work, Need M33 to set it now */
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| 
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| 	/* Load the lposc fuse to work around ROM issue. The fuse depends on S400 to read. */
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| 	if (is_soc_rev(CHIP_REV_1_0))
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| 		load_lposc_fuse();
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| 
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| 	upower_init();
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| 
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| 	power_init_board();
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| 
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| 	clock_init_late();
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| 
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| 	/* This must place after upower init, so access to MDA and MRC are valid */
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| 	/* Init XRDC MDA  */
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| 	xrdc_init_mda();
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| 
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| 	/* Init XRDC MRC for VIDEO, DSP domains */
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| 	xrdc_init_mrc();
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| 
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| 	xrdc_init_pdac_msc();
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| 
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| 	/* DDR initialization */
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| 	spl_dram_init();
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| 
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| 	/* Call it after PS16 power up */
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| 	set_lpav_qos();
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| 
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| 	/* Enable A35 access to the CAAM */
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| 	ret = ele_release_caam(0x7, &res);
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| 	if (ret)
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| 		printf("ele release caam failed %d, 0x%x\n", ret, res);
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| 
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| 	/*
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| 	 * RNG start only available on the A1 soc revision.
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| 	 * Check some JTAG register for the SoC revision.
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| 	 */
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| 	if (!is_soc_rev(CHIP_REV_1_0)) {
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| 		ret = ele_start_rng();
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| 		if (ret)
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| 			printf("Fail to start RNG: %d\n", ret);
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| 	}
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| }
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| 
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| void board_init_f(ulong dummy)
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| {
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| 	/* Clear the BSS. */
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| 	memset(__bss_start, 0, __bss_end - __bss_start);
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| 
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| 	timer_init();
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| 
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| 	arch_cpu_init();
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| 
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| 	board_init_r(NULL, 0);
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| }
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