4 select ARM_ERRATA_855873 if !TFABOOT
8 select SKIP_LOWLEVEL_INIT
13 select SYS_FSL_ERRATUM_A010315 if PCIE_LAYERSCAPE
14 select SYS_FSL_ERRATUM_A009798
15 select SYS_FSL_ERRATUM_A008997
16 select SYS_FSL_ERRATUM_A009007
17 select SYS_FSL_ERRATUM_A009008
18 select ARCH_EARLY_INIT_R
19 select BOARD_EARLY_INIT_F
21 select SYS_I2C_MXC_I2C1 if !DM_I2C
22 select SYS_I2C_MXC_I2C2 if !DM_I2C
28 select ARMV8_SET_SMPEN
29 select ESBC_HDR_LS if CHAIN_OF_TRUST
34 select SYS_FSL_HAS_CCI400
39 select SYS_FSL_DDR_VER_50
40 select SYS_FSL_HAS_DDR3
41 select SYS_FSL_HAS_DDR4
42 select SYS_FSL_HAS_SEC
43 select SYS_FSL_SEC_COMPAT_5
47 select ARCH_EARLY_INIT_R
48 select BOARD_EARLY_INIT_F
50 select SYS_FSL_ERRATUM_A008997
51 select SYS_FSL_ERRATUM_A009007
52 select SYS_FSL_ERRATUM_A008514 if !TFABOOT
53 select SYS_FSL_ERRATUM_A009663 if !TFABOOT
54 select SYS_FSL_ERRATUM_A009942 if !TFABOOT
55 select SYS_FSL_ERRATUM_A050382
56 select SYS_FSL_ERRATUM_A011334
57 select SYS_FSL_ESDHC_UNRELIABLE_PULSE_DETECTION_WORKAROUND
58 select RESV_RAM if GIC_V3_ITS
59 select SYS_HAS_ARMV8_SECURE_BASE
64 select ARMV8_SET_SMPEN
65 select ARM_ERRATA_855873 if !TFABOOT
66 select FSL_IFC if TFABOOT || (!QSPI_BOOT && !SD_BOOT_QSPI)
70 select HAS_FSL_XHCI_USB if USB_HOST
71 select SKIP_LOWLEVEL_INIT
76 select SYS_FSL_DDR_VER_50
77 select SYS_FSL_ERRATUM_A008850 if !TFABOOT
78 select SYS_FSL_ERRATUM_A008997
79 select SYS_FSL_ERRATUM_A009008
80 select SYS_FSL_ERRATUM_A009660 if !TFABOOT
81 select SYS_FSL_ERRATUM_A009663 if !TFABOOT
82 select SYS_FSL_ERRATUM_A009798
83 select SYS_FSL_ERRATUM_A009942 if !TFABOOT
84 select SYS_FSL_ERRATUM_A010315 if PCIE_LAYERSCAPE
85 select SYS_FSL_ERRATUM_A010539
86 select SYS_FSL_HAS_DDR3
87 select SYS_FSL_HAS_DDR4
88 select ARCH_EARLY_INIT_R
89 select BOARD_EARLY_INIT_F
91 select SYS_I2C_MXC_I2C1 if !DM_I2C
92 select SYS_I2C_MXC_I2C2 if !DM_I2C
93 select SYS_I2C_MXC_I2C3 if !DM_I2C
94 select SYS_I2C_MXC_I2C4 if !DM_I2C
95 select SYS_HAS_ARMV8_SECURE_BASE
101 select ARMV8_SET_SMPEN
102 select FSL_IFC if TFABOOT || (!QSPI_BOOT && !SD_BOOT_QSPI)
103 select FSL_LAYERSCAPE
106 select HAS_FSL_XHCI_USB if USB_HOST
107 select SKIP_LOWLEVEL_INIT
108 select SYS_FSL_SRDS_1
109 select SYS_HAS_SERDES
111 select SYS_FSL_DDR_BE
112 select SYS_FSL_DDR_VER_50
113 select SYS_FSL_ERRATUM_A008336 if !TFABOOT
114 select SYS_FSL_ERRATUM_A008511 if !TFABOOT
115 select SYS_FSL_ERRATUM_A008850 if !TFABOOT
116 select SYS_FSL_ERRATUM_A008997
117 select SYS_FSL_ERRATUM_A009008
118 select SYS_FSL_ERRATUM_A009798
119 select SYS_FSL_ERRATUM_A009801
120 select SYS_FSL_ERRATUM_A009803 if !TFABOOT
121 select SYS_FSL_ERRATUM_A009942 if !TFABOOT
122 select SYS_FSL_ERRATUM_A010165 if !TFABOOT
123 select SYS_FSL_ERRATUM_A010539
124 select SYS_FSL_HAS_DDR4
125 select SYS_FSL_SRDS_2
126 select ARCH_EARLY_INIT_R
127 select BOARD_EARLY_INIT_F
129 select SYS_I2C_MXC_I2C1 if !DM_I2C
130 select SYS_I2C_MXC_I2C2 if !DM_I2C
131 select SYS_I2C_MXC_I2C3 if !DM_I2C
132 select SYS_I2C_MXC_I2C4 if !DM_I2C
136 imply SPL_SYS_I2C_LEGACY
140 select ARMV8_SET_SMPEN
141 select ARM_ERRATA_855873 if !TFABOOT
142 select ESBC_HDR_LS if CHAIN_OF_TRUST
144 select FSL_LAYERSCAPE
147 select SKIP_LOWLEVEL_INIT
148 select SYS_FSL_SRDS_1
149 select SYS_HAS_SERDES
151 select SYS_FSL_DDR_LE
152 select SYS_FSL_DDR_VER_50
155 select SYS_FSL_ERRATUM_A009803 if !TFABOOT
156 select SYS_FSL_ERRATUM_A009942 if !TFABOOT
157 select SYS_FSL_ERRATUM_A010165 if !TFABOOT
158 select SYS_FSL_ERRATUM_A008511 if !TFABOOT
159 select SYS_FSL_ERRATUM_A008850 if !TFABOOT
160 select SYS_FSL_ERRATUM_A009007
161 select SYS_FSL_HAS_CCI400
162 select SYS_FSL_HAS_DDR4
163 select SYS_FSL_HAS_RGMII
164 select SYS_FSL_HAS_SEC
165 select SYS_FSL_SEC_COMPAT_5
166 select SYS_FSL_SEC_LE
167 select SYS_FSL_SRDS_1
168 select SYS_FSL_SRDS_2
171 select FSL_TZPC_BP147
172 select ARCH_EARLY_INIT_R
173 select BOARD_EARLY_INIT_F
175 select SYS_I2C_MXC_I2C1 if !TFABOOT
176 select SYS_I2C_MXC_I2C2 if !TFABOOT
177 select SYS_I2C_MXC_I2C3 if !TFABOOT
178 select SYS_I2C_MXC_I2C4 if !TFABOOT
179 select RESV_RAM if GIC_V3_ITS
182 imply SPL_SYS_I2C_LEGACY
187 select ARMV8_SET_SMPEN
188 select ARM_ERRATA_826974
189 select ARM_ERRATA_828024
190 select ARM_ERRATA_829520
191 select ARM_ERRATA_833471
192 select ESBC_HDR_LS if CHAIN_OF_TRUST
194 select FSL_LAYERSCAPE
196 select SYS_FSL_OTHER_DDR_NUM_CTRLS
198 select SKIP_LOWLEVEL_INIT
199 select SYS_FSL_SRDS_1
200 select SYS_HAS_SERDES
202 select SYS_FSL_DDR_LE
203 select SYS_FSL_DDR_VER_50
204 select SYS_FSL_HAS_CCN504
205 select SYS_FSL_HAS_DP_DDR
206 select SYS_FSL_HAS_SEC
207 select SYS_FSL_HAS_DDR4
208 select SYS_FSL_SEC_COMPAT_5
209 select SYS_FSL_SEC_LE
210 select SYS_FSL_SRDS_2
214 select FSL_TZPC_BP147
215 select SYS_FSL_ERRATUM_A008336 if !TFABOOT
216 select SYS_FSL_ERRATUM_A008511 if !TFABOOT
217 select SYS_FSL_ERRATUM_A008514 if !TFABOOT
218 select SYS_FSL_ERRATUM_A008585
219 select SYS_FSL_ERRATUM_A008997
220 select SYS_FSL_ERRATUM_A009007
221 select SYS_FSL_ERRATUM_A009008
222 select SYS_FSL_ERRATUM_A009635
223 select SYS_FSL_ERRATUM_A009663 if !TFABOOT
224 select SYS_FSL_ERRATUM_A009798
225 select SYS_FSL_ERRATUM_A009801
226 select SYS_FSL_ERRATUM_A009803 if !TFABOOT
227 select SYS_FSL_ERRATUM_A009942 if !TFABOOT
228 select SYS_FSL_ERRATUM_A010165 if !TFABOOT
229 select SYS_FSL_ERRATUM_A009203
230 select ARCH_EARLY_INIT_R
231 select BOARD_EARLY_INIT_F
233 select SYS_I2C_MXC_I2C1 if !TFABOOT
234 select SYS_I2C_MXC_I2C2 if !TFABOOT
235 select SYS_I2C_MXC_I2C3 if !TFABOOT
236 select SYS_I2C_MXC_I2C4 if !TFABOOT
237 select RESV_RAM if GIC_V3_ITS
238 imply DISTRO_DEFAULTS
241 imply SPL_SYS_I2C_LEGACY
245 select ARMV8_SET_SMPEN
246 select ESBC_HDR_LS if CHAIN_OF_TRUST
248 select FSL_DDR_INTERACTIVE
249 select FSL_LAYERSCAPE
251 select FSL_TZPC_BP147
254 select SYS_HAS_SERDES
255 select SYS_FSL_SRDS_1
256 select SYS_FSL_SRDS_2
258 select SYS_FSL_DDR_LE
259 select SYS_FSL_DDR_VER_50
262 select SYS_FSL_ERRATUM_A050204
263 select SYS_FSL_ERRATUM_A011334
264 select SYS_FSL_ESDHC_UNRELIABLE_PULSE_DETECTION_WORKAROUND
265 select SYS_FSL_HAS_RGMII
266 select SYS_FSL_HAS_SEC
267 select SYS_FSL_HAS_CCN508
268 select SYS_FSL_HAS_DDR4
269 select SYS_FSL_SEC_COMPAT_5
270 select SYS_FSL_SEC_LE
271 select SYS_PCI_64BIT if PCI
272 select ARCH_EARLY_INIT_R
273 select BOARD_EARLY_INIT_F
275 select RESV_RAM if GIC_V3_ITS
276 imply DISTRO_DEFAULTS
280 imply SPL_SYS_I2C_LEGACY
284 select ARMV8_SET_SMPEN
285 select ESBC_HDR_LS if CHAIN_OF_TRUST
287 select FSL_DDR_INTERACTIVE
288 select FSL_LAYERSCAPE
290 select FSL_TZPC_BP147
292 select HAS_FSL_XHCI_USB if USB_HOST
294 select SYS_HAS_SERDES
295 select SYS_FSL_SRDS_1
296 select SYS_FSL_SRDS_2
297 select SYS_NXP_SRDS_3
299 select SYS_FSL_DDR_LE
300 select SYS_FSL_DDR_VER_50
303 select SYS_FSL_ERRATUM_A050204
304 select SYS_FSL_ERRATUM_A011334
305 select SYS_FSL_ESDHC_UNRELIABLE_PULSE_DETECTION_WORKAROUND
306 select SYS_FSL_HAS_RGMII
307 select SYS_FSL_HAS_SEC
308 select SYS_FSL_HAS_CCN508
309 select SYS_FSL_HAS_DDR4
310 select SYS_FSL_SEC_COMPAT_5
311 select SYS_FSL_SEC_LE
312 select SYS_PCI_64BIT if PCI
313 select ARCH_EARLY_INIT_R
314 select BOARD_EARLY_INIT_F
316 select RESV_RAM if GIC_V3_ITS
317 imply DISTRO_DEFAULTS
322 imply SPL_SYS_I2C_LEGACY
326 select SKIP_LOWLEVEL_INIT
327 select SYS_FSL_CCSR_GUR_BE
328 select SYS_FSL_CCSR_SCFG_BE
329 select SYS_FSL_ESDHC_BE
330 select SYS_FSL_IFC_BE
331 select SYS_FSL_PEX_LUT_BE
332 select SYS_FSL_HAS_CCI400
333 select SYS_FSL_HAS_SEC
334 select SYS_FSL_SEC_COMPAT_5
335 select SYS_FSL_SEC_BE
338 select ARCH_MISC_INIT
339 select SYS_FSL_CCSR_GUR_LE
340 select SYS_FSL_CCSR_SCFG_LE
341 select SYS_FSL_ESDHC_LE
342 select SYS_FSL_IFC_LE
343 select SYS_FSL_PEX_LUT_LE
349 config SYS_FSL_CCSR_GUR_BE
352 config SYS_FSL_CCSR_SCFG_BE
355 config SYS_FSL_PEX_LUT_BE
358 config SYS_FSL_CCSR_GUR_LE
361 config SYS_FSL_CCSR_SCFG_LE
364 config SYS_FSL_ESDHC_LE
367 config SYS_FSL_IFC_LE
370 config SYS_FSL_PEX_LUT_LE
373 menu "Layerscape architecture"
374 depends on FSL_LSCH2 || FSL_LSCH3
376 config FSL_LAYERSCAPE
380 config HAS_FEATURE_GIC64K_ALIGN
382 default y if ARCH_LS1043A
384 config HAS_FEATURE_ENHANCED_MSI
386 default y if ARCH_LS1043A
388 menu "Layerscape PPA"
390 bool "FSL Layerscape PPA firmware support"
391 depends on !ARMV8_PSCI
392 select ARMV8_SEC_FIRMWARE_SUPPORT
393 select SEC_FIRMWARE_ARMV8_PSCI
394 select ARMV8_SEC_FIRMWARE_ERET_ADDR_REVERT if FSL_LSCH2
396 The FSL Primary Protected Application (PPA) is a software component
397 which is loaded during boot stage, and then remains resident in RAM
398 and runs in the TrustZone after boot.
401 config SPL_FSL_LS_PPA
402 bool "FSL Layerscape PPA firmware support for SPL build"
403 depends on !ARMV8_PSCI
404 select SPL_ARMV8_SEC_FIRMWARE_SUPPORT
405 select SEC_FIRMWARE_ARMV8_PSCI
406 select ARMV8_SEC_FIRMWARE_ERET_ADDR_REVERT if FSL_LSCH2
408 The FSL Primary Protected Application (PPA) is a software component
409 which is loaded during boot stage, and then remains resident in RAM
410 and runs in the TrustZone after boot. This is to load PPA during SPL
411 stage instead of the RAM version of U-Boot. Once PPA is initialized,
412 the rest of U-Boot (including RAM version) runs at EL2.
414 prompt "FSL Layerscape PPA firmware loading-media select"
415 depends on FSL_LS_PPA
416 default SYS_LS_PPA_FW_IN_MMC if SD_BOOT
417 default SYS_LS_PPA_FW_IN_NAND if NAND_BOOT
418 default SYS_LS_PPA_FW_IN_XIP
420 config SYS_LS_PPA_FW_IN_XIP
423 Say Y here if the PPA firmware locate at XIP flash, such
424 as NOR or QSPI flash.
426 config SYS_LS_PPA_FW_IN_MMC
427 bool "eMMC or SD Card"
429 Say Y here if the PPA firmware locate at eMMC/SD card.
431 config SYS_LS_PPA_FW_IN_NAND
434 Say Y here if the PPA firmware locate at NAND flash.
438 config LS_PPA_ESBC_HDR_SIZE
439 hex "Length of PPA ESBC header"
440 depends on FSL_LS_PPA && CHAIN_OF_TRUST && !SYS_LS_PPA_FW_IN_XIP
443 Length (in bytes) of PPA ESBC header to be copied from MMC/SD or
444 NAND to memory to validate PPA image.
448 config SYS_FSL_ERRATUM_A008997
449 bool "Workaround for USB PHY erratum A008997"
451 config SYS_FSL_ERRATUM_A009007
454 Workaround for USB PHY erratum A009007
456 config SYS_FSL_ERRATUM_A009008
457 bool "Workaround for USB PHY erratum A009008"
459 config SYS_FSL_ERRATUM_A009798
460 bool "Workaround for USB PHY erratum A009798"
462 config SYS_FSL_ERRATUM_A050204
463 bool "Workaround for USB PHY erratum A050204"
465 USB3.0 Receiver needs to enable fixed equalization
466 for each of PHY instances in an SOC. This is similar
467 to erratum A-009007, but this one is for LX2160A and LX2162A,
468 and the register value is different.
470 config SYS_FSL_ERRATUM_A010315
471 bool "Workaround for PCIe erratum A010315"
473 config SYS_FSL_ERRATUM_A010539
474 bool "Workaround for PIN MUX erratum A010539"
477 int "Maximum number of CPUs permitted for Layerscape"
478 default 2 if ARCH_LS1028A
479 default 4 if ARCH_LS1043A
480 default 4 if ARCH_LS1046A
481 default 16 if ARCH_LS2080A
482 default 8 if ARCH_LS1088A
483 default 16 if ARCH_LX2160A
484 default 16 if ARCH_LX2162A
487 Set this number to the maximum number of possible CPUs in the SoC.
488 SoCs may have multiple clusters with each cluster may have multiple
489 ports. If some ports are reserved but higher ports are used for
490 cores, count the reserved ports. This will allocate enough memory
491 in spin table to properly handle all cores.
494 bool "Fan controller"
496 Enable the EMC2305 fan controller for configuration of fan
500 bool "Init the QSPI AHB bus"
502 The default setting for QSPI AHB bus just support 3bytes addressing.
503 But some QSPI flash size up to 64MBytes, so initialize the QSPI AHB
504 bus for those flashes to support the full QSPI flash size.
506 config FSPI_AHB_EN_4BYTE
507 bool "Enable 4-byte Fast Read command for AHB mode"
509 The default setting for FlexSPI AHB bus just supports 3-byte addressing.
510 But some FlexSPI flash sizes are up to 64MBytes.
511 This flag enables fast read command for AHB mode and modifies required
512 LUT to support full FlexSPI flash.
514 config SYS_CCI400_OFFSET
515 hex "Offset for CCI400 base"
516 depends on SYS_FSL_HAS_CCI400
517 default 0x3090000 if ARCH_LS1088A || ARCH_LS1028A
518 default 0x180000 if FSL_LSCH2
520 Offset for CCI400 base
521 CCI400 base addr = CCSRBAR + CCI400_OFFSET
523 config SYS_FSL_IFC_BANK_COUNT
524 int "Maximum banks of Integrated flash controller"
525 depends on ARCH_LS1043A || ARCH_LS1046A || ARCH_LS2080A || ARCH_LS1088A
526 default 4 if ARCH_LS1043A
527 default 4 if ARCH_LS1046A
528 default 8 if ARCH_LS2080A || ARCH_LS1088A
530 config SYS_FSL_HAS_CCI400
533 config SYS_FSL_HAS_CCN504
536 config SYS_FSL_HAS_CCN508
539 config SYS_FSL_HAS_DP_DDR
542 Defines the SoC has DP-DDR used for DPAA.
546 depends on SYS_FSL_HAS_DP_DDR
547 default 2 if ARCH_LS2080A
549 config DP_DDR_DIMM_SLOTS_PER_CTLR
551 depends on SYS_FSL_HAS_DP_DDR
552 default 1 if ARCH_LS2080A
554 config DP_DDR_NUM_CTRLS
556 depends on SYS_FSL_HAS_DP_DDR
557 default 1 if ARCH_LS2080A
559 config SYS_DP_DDR_BASE
561 depends on SYS_FSL_HAS_DP_DDR
562 default 0x6000000000 if ARCH_LS2080A
564 config SYS_DP_DDR_BASE_PHY
566 depends on SYS_FSL_HAS_DP_DDR
567 default 0 if ARCH_LS2080A
569 DDR controller uses this value as the base address for binding.
570 It is mapped to CONFIG_SYS_DP_DDR_BASE for core to access.
572 config SYS_FSL_SRDS_1
575 config SYS_FSL_SRDS_2
578 config SYS_NXP_SRDS_3
581 config SYS_HAS_SERDES
593 config FSL_TZPC_BP147
597 menu "Layerscape clock tree configuration"
598 depends on FSL_LSCH2 || FSL_LSCH3
600 config CLUSTER_CLK_FREQ
601 int "Reference clock of core cluster"
602 depends on ARCH_LS1012A
605 This number is the reference clock frequency of core PLL.
606 For most platforms, the core PLL and Platform PLL have the same
607 reference clock, but for some platforms, LS1012A for instance,
608 they are provided sepatately.
610 config SYS_FSL_PCLK_DIV
611 int "Platform clock divider"
612 default 1 if ARCH_LS1028A
613 default 1 if ARCH_LS1043A
614 default 1 if ARCH_LS1046A
615 default 1 if ARCH_LS1088A
618 This is the divider that is used to derive Platform clock from
619 Platform PLL, in another word:
620 Platform_clk = Platform_PLL_freq / this_divider
622 config SYS_FSL_DSPI_CLK_DIV
623 int "DSPI clock divider"
624 default 1 if ARCH_LS1043A
627 This is the divider that is used to derive DSPI clock from Platform
628 clock, in another word DSPI_clk = Platform_clk / this_divider.
630 config SYS_FSL_DUART_CLK_DIV
631 int "DUART clock divider"
632 default 1 if ARCH_LS1043A
633 default 4 if ARCH_LX2160A
634 default 4 if ARCH_LX2162A
637 This is the divider that is used to derive DUART clock from Platform
638 clock, in another word DUART_clk = Platform_clk / this_divider.
640 config SYS_FSL_I2C_CLK_DIV
641 int "I2C clock divider"
642 default 1 if ARCH_LS1043A
643 default 4 if ARCH_LS1012A
644 default 4 if ARCH_LS1028A
645 default 8 if ARCH_LX2160A
646 default 8 if ARCH_LX2162A
647 default 8 if ARCH_LS1088A
650 This is the divider that is used to derive I2C clock from Platform
651 clock, in another word I2C_clk = Platform_clk / this_divider.
653 config SYS_FSL_IFC_CLK_DIV
654 int "IFC clock divider"
655 default 1 if ARCH_LS1043A
656 default 4 if ARCH_LS1012A
657 default 4 if ARCH_LS1028A
658 default 8 if ARCH_LX2160A
659 default 8 if ARCH_LX2162A
660 default 8 if ARCH_LS1088A
663 This is the divider that is used to derive IFC clock from Platform
664 clock, in another word IFC_clk = Platform_clk / this_divider.
666 config SYS_FSL_LPUART_CLK_DIV
667 int "LPUART clock divider"
668 default 1 if ARCH_LS1043A
671 This is the divider that is used to derive LPUART clock from Platform
672 clock, in another word LPUART_clk = Platform_clk / this_divider.
674 config SYS_FSL_SDHC_CLK_DIV
675 int "SDHC clock divider"
676 default 1 if ARCH_LS1043A
677 default 1 if ARCH_LS1012A
680 This is the divider that is used to derive SDHC clock from Platform
681 clock, in another word SDHC_clk = Platform_clk / this_divider.
683 config SYS_FSL_QMAN_CLK_DIV
684 int "QMAN clock divider"
685 default 1 if ARCH_LS1043A
688 This is the divider that is used to derive QMAN clock from Platform
689 clock, in another word QMAN_clk = Platform_clk / this_divider.
695 Reserve memory from the top, tracked by gd->arch.resv_ram. This
696 reserved RAM can be used by special driver that resides in memory
697 after U-Boot exits. It's up to implementation to allocate and allow
698 access to this reserved memory. For example, the reserved RAM can
699 be at the high end of physical memory. The reserve RAM may be
700 excluded from memory bank(s) passed to OS, or marked as reserved.
705 Ethernet controller 1, this is connected to
706 MAC17 for LX2160A and LX2162A or to MAC3 for other SoCs
707 Provides DPAA2 capabilities
712 Ethernet controller 2, this is connected to
713 MAC18 for LX2160A and LX2162A or to MAC4 for other SoCs
714 Provides DPAA2 capabilities
716 config SYS_FSL_ERRATUM_A008336
719 config SYS_FSL_ERRATUM_A008514
722 config SYS_FSL_ERRATUM_A008585
725 config SYS_FSL_ERRATUM_A008850
728 config SYS_FSL_ERRATUM_A009203
731 config SYS_FSL_ERRATUM_A009635
734 config SYS_FSL_ERRATUM_A009660
737 config SYS_FSL_ERRATUM_A050382
740 config SYS_FSL_HAS_RGMII
742 depends on SYS_FSL_EC1 || SYS_FSL_EC2
744 config HAS_FSL_XHCI_USB
747 For some SoC (such as LS1043A and LS1046A), USB and QE-HDLC multiplex use
748 pins, select it when the pins are assigned to USB.
750 config SYS_FSL_BOOTROM_BASE
755 config SYS_FSL_BOOTROM_SIZE