1 /* SPDX-License-Identifier: GPL-2.0+ */
2 /*
3  * Copyright 2014 Freescale Semiconductor, Inc.
4  * Copyright 2019 NXP
5  */
6 
7 #ifndef __CONFIG_H
8 #define __CONFIG_H
9 
10 #define CONFIG_ARMV7_SECURE_BASE	OCRAM_BASE_S_ADDR
11 
12 #define CONFIG_SYS_FSL_CLK
13 
14 #define CONFIG_SKIP_LOWLEVEL_INIT
15 #define CONFIG_DEEP_SLEEP
16 
17 /*
18  * Size of malloc() pool
19  */
20 #define CONFIG_SYS_MALLOC_LEN		(CONFIG_ENV_SIZE + 16 * 1024 * 1024)
21 
22 #define CONFIG_SYS_INIT_RAM_ADDR	OCRAM_BASE_ADDR
23 #define CONFIG_SYS_INIT_RAM_SIZE	OCRAM_SIZE
24 
25 #define CONFIG_SYS_CLK_FREQ		100000000
26 #define CONFIG_DDR_CLK_FREQ		100000000
27 
28 #define DDR_SDRAM_CFG			0x470c0008
29 #define DDR_CS0_BNDS			0x008000bf
30 #define DDR_CS0_CONFIG			0x80014302
31 #define DDR_TIMING_CFG_0		0x50550004
32 #define DDR_TIMING_CFG_1		0xbcb38c56
33 #define DDR_TIMING_CFG_2		0x0040d120
34 #define DDR_TIMING_CFG_3		0x010e1000
35 #define DDR_TIMING_CFG_4		0x00000001
36 #define DDR_TIMING_CFG_5		0x03401400
37 #define DDR_SDRAM_CFG_2			0x00401010
38 #define DDR_SDRAM_MODE			0x00061c60
39 #define DDR_SDRAM_MODE_2		0x00180000
40 #define DDR_SDRAM_INTERVAL		0x18600618
41 #define DDR_DDR_WRLVL_CNTL		0x8655f605
42 #define DDR_DDR_WRLVL_CNTL_2		0x05060607
43 #define DDR_DDR_WRLVL_CNTL_3		0x05050505
44 #define DDR_DDR_CDR1			0x80040000
45 #define DDR_DDR_CDR2			0x00000001
46 #define DDR_SDRAM_CLK_CNTL		0x02000000
47 #define DDR_DDR_ZQ_CNTL			0x89080600
48 #define DDR_CS0_CONFIG_2		0
49 #define DDR_SDRAM_CFG_MEM_EN		0x80000000
50 #define SDRAM_CFG2_D_INIT		0x00000010
51 #define DDR_CDR2_VREF_TRAIN_EN		0x00000080
52 #define SDRAM_CFG2_FRC_SR		0x80000000
53 #define SDRAM_CFG_BI			0x00000001
54 
55 #ifdef CONFIG_RAMBOOT_PBL
56 #define CONFIG_SYS_FSL_PBL_PBI	board/freescale/ls1021atwr/ls102xa_pbi.cfg
57 #endif
58 
59 #ifdef CONFIG_SD_BOOT
60 #ifdef CONFIG_SD_BOOT_QSPI
61 #define CONFIG_SYS_FSL_PBL_RCW	\
62 	board/freescale/ls1021atwr/ls102xa_rcw_sd_qspi.cfg
63 #else
64 #define CONFIG_SYS_FSL_PBL_RCW	\
65 	board/freescale/ls1021atwr/ls102xa_rcw_sd_ifc.cfg
66 #endif
67 
68 #ifdef CONFIG_NXP_ESBC
69 /*
70  * HDR would be appended at end of image and copied to DDR along
71  * with U-Boot image.
72  */
73 #define CONFIG_U_BOOT_HDR_SIZE				(16 << 10)
74 #endif /* ifdef CONFIG_NXP_ESBC */
75 
76 #define CONFIG_SPL_MAX_SIZE		0x1a000
77 #define CONFIG_SPL_STACK		0x1001d000
78 #define CONFIG_SPL_PAD_TO		0x1c000
79 
80 #define CONFIG_SYS_SPL_MALLOC_START	(CONFIG_SYS_TEXT_BASE + \
81 		CONFIG_SYS_MONITOR_LEN)
82 #define CONFIG_SYS_SPL_MALLOC_SIZE	0x100000
83 #define CONFIG_SPL_BSS_START_ADDR	0x80100000
84 #define CONFIG_SPL_BSS_MAX_SIZE		0x80000
85 
86 #ifdef CONFIG_U_BOOT_HDR_SIZE
87 /*
88  * HDR would be appended at end of image and copied to DDR along
89  * with U-Boot image. Here u-boot max. size is 512K. So if binary
90  * size increases then increase this size in case of secure boot as
91  * it uses raw u-boot image instead of fit image.
92  */
93 #define CONFIG_SYS_MONITOR_LEN		(0x100000 + CONFIG_U_BOOT_HDR_SIZE)
94 #else
95 #define CONFIG_SYS_MONITOR_LEN		0x100000
96 #endif /* ifdef CONFIG_U_BOOT_HDR_SIZE */
97 #endif
98 
99 #define PHYS_SDRAM			0x80000000
100 #define PHYS_SDRAM_SIZE			(1u * 1024 * 1024 * 1024)
101 
102 #define CONFIG_SYS_DDR_SDRAM_BASE      0x80000000UL
103 #define CONFIG_SYS_SDRAM_BASE          CONFIG_SYS_DDR_SDRAM_BASE
104 
105 #define CONFIG_CHIP_SELECTS_PER_CTRL	4
106 
107 /*
108  * IFC Definitions
109  */
110 #if !defined(CONFIG_QSPI_BOOT) && !defined(CONFIG_SD_BOOT_QSPI)
111 #define CONFIG_FSL_IFC
112 #define CONFIG_SYS_FLASH_BASE		0x60000000
113 #define CONFIG_SYS_FLASH_BASE_PHYS	CONFIG_SYS_FLASH_BASE
114 
115 #define CONFIG_SYS_NOR0_CSPR_EXT	(0x0)
116 #define CONFIG_SYS_NOR0_CSPR	(CSPR_PHYS_ADDR(CONFIG_SYS_FLASH_BASE_PHYS) | \
117 				CSPR_PORT_SIZE_16 | \
118 				CSPR_MSEL_NOR | \
119 				CSPR_V)
120 #define CONFIG_SYS_NOR_AMASK		IFC_AMASK(128 * 1024 * 1024)
121 
122 /* NOR Flash Timing Params */
123 #define CONFIG_SYS_NOR_CSOR		(CSOR_NOR_ADM_SHIFT(4) | \
124 					CSOR_NOR_TRHZ_80)
125 #define CONFIG_SYS_NOR_FTIM0		(FTIM0_NOR_TACSE(0x4) | \
126 					FTIM0_NOR_TEADC(0x5) | \
127 					FTIM0_NOR_TAVDS(0x0) | \
128 					FTIM0_NOR_TEAHC(0x5))
129 #define CONFIG_SYS_NOR_FTIM1		(FTIM1_NOR_TACO(0x35) | \
130 					FTIM1_NOR_TRAD_NOR(0x1A) | \
131 					FTIM1_NOR_TSEQRAD_NOR(0x13))
132 #define CONFIG_SYS_NOR_FTIM2		(FTIM2_NOR_TCS(0x4) | \
133 					FTIM2_NOR_TCH(0x4) | \
134 					FTIM2_NOR_TWP(0x1c) | \
135 					FTIM2_NOR_TWPH(0x0e))
136 #define CONFIG_SYS_NOR_FTIM3		0
137 
138 #define CONFIG_SYS_FLASH_QUIET_TEST
139 #define CONFIG_FLASH_SHOW_PROGRESS	45	/* count down from 45/5: 9..1 */
140 
141 #define CONFIG_SYS_MAX_FLASH_BANKS	1	/* number of banks */
142 #define CONFIG_SYS_MAX_FLASH_SECT	1024	/* sectors per device */
143 #define CONFIG_SYS_FLASH_ERASE_TOUT	60000	/* Flash Erase Timeout (ms) */
144 #define CONFIG_SYS_FLASH_WRITE_TOUT	500	/* Flash Write Timeout (ms) */
145 
146 #define CONFIG_SYS_FLASH_EMPTY_INFO
147 #define CONFIG_SYS_FLASH_BANKS_LIST	{ CONFIG_SYS_FLASH_BASE_PHYS }
148 
149 #define CONFIG_CFI_FLASH_USE_WEAK_ACCESSORS
150 #define CONFIG_SYS_WRITE_SWAPPED_DATA
151 #endif
152 
153 /* CPLD */
154 
155 #define CONFIG_SYS_CPLD_BASE	0x7fb00000
156 #define CPLD_BASE_PHYS		CONFIG_SYS_CPLD_BASE
157 
158 #define CONFIG_SYS_FPGA_CSPR_EXT        (0x0)
159 #define CONFIG_SYS_FPGA_CSPR		(CSPR_PHYS_ADDR(CPLD_BASE_PHYS) | \
160 					CSPR_PORT_SIZE_8 | \
161 					CSPR_MSEL_GPCM | \
162 					CSPR_V)
163 #define CONFIG_SYS_FPGA_AMASK		IFC_AMASK(64 * 1024)
164 #define CONFIG_SYS_FPGA_CSOR		(CSOR_NOR_ADM_SHIFT(4) | \
165 					CSOR_NOR_NOR_MODE_AVD_NOR | \
166 					CSOR_NOR_TRHZ_80)
167 
168 /* CPLD Timing parameters for IFC GPCM */
169 #define CONFIG_SYS_FPGA_FTIM0		(FTIM0_GPCM_TACSE(0xf) | \
170 					FTIM0_GPCM_TEADC(0xf) | \
171 					FTIM0_GPCM_TEAHC(0xf))
172 #define CONFIG_SYS_FPGA_FTIM1		(FTIM1_GPCM_TACO(0xff) | \
173 					FTIM1_GPCM_TRAD(0x3f))
174 #define CONFIG_SYS_FPGA_FTIM2		(FTIM2_GPCM_TCS(0xf) | \
175 					FTIM2_GPCM_TCH(0xf) | \
176 					FTIM2_GPCM_TWP(0xff))
177 #define CONFIG_SYS_FPGA_FTIM3           0x0
178 #define CONFIG_SYS_CSPR0_EXT		CONFIG_SYS_NOR0_CSPR_EXT
179 #define CONFIG_SYS_CSPR0		CONFIG_SYS_NOR0_CSPR
180 #define CONFIG_SYS_AMASK0		CONFIG_SYS_NOR_AMASK
181 #define CONFIG_SYS_CSOR0		CONFIG_SYS_NOR_CSOR
182 #define CONFIG_SYS_CS0_FTIM0		CONFIG_SYS_NOR_FTIM0
183 #define CONFIG_SYS_CS0_FTIM1		CONFIG_SYS_NOR_FTIM1
184 #define CONFIG_SYS_CS0_FTIM2		CONFIG_SYS_NOR_FTIM2
185 #define CONFIG_SYS_CS0_FTIM3		CONFIG_SYS_NOR_FTIM3
186 #define CONFIG_SYS_CSPR1_EXT		CONFIG_SYS_FPGA_CSPR_EXT
187 #define CONFIG_SYS_CSPR1		CONFIG_SYS_FPGA_CSPR
188 #define CONFIG_SYS_AMASK1		CONFIG_SYS_FPGA_AMASK
189 #define CONFIG_SYS_CSOR1		CONFIG_SYS_FPGA_CSOR
190 #define CONFIG_SYS_CS1_FTIM0		CONFIG_SYS_FPGA_FTIM0
191 #define CONFIG_SYS_CS1_FTIM1		CONFIG_SYS_FPGA_FTIM1
192 #define CONFIG_SYS_CS1_FTIM2		CONFIG_SYS_FPGA_FTIM2
193 #define CONFIG_SYS_CS1_FTIM3		CONFIG_SYS_FPGA_FTIM3
194 
195 /*
196  * Serial Port
197  */
198 #ifdef CONFIG_LPUART
199 #define CONFIG_LPUART_32B_REG
200 #else
201 #define CONFIG_SYS_NS16550_SERIAL
202 #ifndef CONFIG_DM_SERIAL
203 #define CONFIG_SYS_NS16550_REG_SIZE	1
204 #endif
205 #define CONFIG_SYS_NS16550_CLK		get_serial_clock()
206 #endif
207 
208 /*
209  * I2C
210  */
211 #if !CONFIG_IS_ENABLED(DM_I2C)
212 #define CONFIG_SYS_I2C
213 #else
214 #define CONFIG_I2C_SET_DEFAULT_BUS_NUM
215 #define CONFIG_I2C_DEFAULT_BUS_NUMBER 0
216 #endif
217 #define CONFIG_SYS_I2C_MXC
218 #define CONFIG_SYS_I2C_MXC_I2C1		/* enable I2C bus 1 */
219 #define CONFIG_SYS_I2C_MXC_I2C2		/* enable I2C bus 2 */
220 #define CONFIG_SYS_I2C_MXC_I2C3		/* enable I2C bus 3 */
221 
222 /* GPIO */
223 #ifdef CONFIG_DM_GPIO
224 #ifndef CONFIG_MPC8XXX_GPIO
225 #define CONFIG_MPC8XXX_GPIO
226 #endif
227 #endif
228 
229 /* EEPROM */
230 #define CONFIG_ID_EEPROM
231 #define CONFIG_SYS_I2C_EEPROM_NXID
232 #define CONFIG_SYS_EEPROM_BUS_NUM		1
233 #define CONFIG_SYS_I2C_EEPROM_ADDR		0x53
234 #define CONFIG_SYS_I2C_EEPROM_ADDR_LEN		1
235 #define CONFIG_SYS_EEPROM_PAGE_WRITE_BITS	3
236 #define CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS	5
237 
238 /*
239  * MMC
240  */
241 
242 /*
243  * Video
244  */
245 #ifdef CONFIG_VIDEO_FSL_DCU_FB
246 #define CONFIG_VIDEO_LOGO
247 #define CONFIG_VIDEO_BMP_LOGO
248 
249 #define CONFIG_FSL_DCU_SII9022A
250 #define CONFIG_SYS_I2C_DVI_BUS_NUM	1
251 #define CONFIG_SYS_I2C_DVI_ADDR		0x39
252 #endif
253 
254 /*
255  * eTSEC
256  */
257 
258 #ifdef CONFIG_TSEC_ENET
259 #define CONFIG_ETHPRIME			"ethernet@2d10000"
260 #endif
261 
262 /* PCIe */
263 #define CONFIG_PCIE1		/* PCIE controller 1 */
264 #define CONFIG_PCIE2		/* PCIE controller 2 */
265 
266 #ifdef CONFIG_PCI
267 #define CONFIG_PCI_SCAN_SHOW
268 #endif
269 
270 #define CONFIG_CMDLINE_TAG
271 
272 #define CONFIG_PEN_ADDR_BIG_ENDIAN
273 #define CONFIG_LAYERSCAPE_NS_ACCESS
274 #define CONFIG_SMP_PEN_ADDR		0x01ee0200
275 #define COUNTER_FREQUENCY		12500000
276 
277 #define CONFIG_HWCONFIG
278 #define HWCONFIG_BUFFER_SIZE		256
279 
280 #define CONFIG_FSL_DEVICE_DISABLE
281 
282 #define BOOT_TARGET_DEVICES(func) \
283 	func(MMC, mmc, 0) \
284 	func(USB, usb, 0) \
285 	func(DHCP, dhcp, na)
286 #include <config_distro_bootcmd.h>
287 
288 #ifdef CONFIG_LPUART
289 #define CONFIG_EXTRA_ENV_SETTINGS       \
290 	"bootargs=root=/dev/ram0 rw console=ttyLP0,115200 "	\
291 		"cma=64M@0x0-0xb0000000\0" \
292 	"initrd_high=0xffffffff\0"      \
293 	"fdt_addr=0x64f00000\0"		\
294 	"kernel_addr=0x65000000\0"	\
295 	"scriptaddr=0x80000000\0"	\
296 	"scripthdraddr=0x80080000\0"	\
297 	"fdtheader_addr_r=0x80100000\0"	\
298 	"kernelheader_addr_r=0x80200000\0"	\
299 	"kernel_addr_r=0x81000000\0"	\
300 	"fdt_addr_r=0x90000000\0"	\
301 	"ramdisk_addr_r=0xa0000000\0"	\
302 	"load_addr=0xa0000000\0"	\
303 	"kernel_size=0x2800000\0"	\
304 	"kernel_addr_sd=0x8000\0"	\
305 	"kernel_size_sd=0x14000\0"	\
306 	"othbootargs=cma=64M@0x0-0xb0000000\0"	\
307 	BOOTENV				\
308 	"boot_scripts=ls1021atwr_boot.scr\0"	\
309 	"boot_script_hdr=hdr_ls1021atwr_bs.out\0"	\
310 		"scan_dev_for_boot_part="	\
311 			"part list ${devtype} ${devnum} devplist; "	\
312 			"env exists devplist || setenv devplist 1; "	\
313 			"for distro_bootpart in ${devplist}; do "	\
314 			"if fstype ${devtype} "				\
315 				"${devnum}:${distro_bootpart} "		\
316 				"bootfstype; then "			\
317 				"run scan_dev_for_boot; "		\
318 			"fi; "			\
319 		"done\0"			\
320 	"scan_dev_for_boot="				  \
321 		"echo Scanning ${devtype} "		  \
322 				"${devnum}:${distro_bootpart}...; "  \
323 		"for prefix in ${boot_prefixes}; do "	  \
324 			"run scan_dev_for_scripts; "	  \
325 		"done;"					  \
326 		"\0"					  \
327 	"boot_a_script="				  \
328 		"load ${devtype} ${devnum}:${distro_bootpart} "  \
329 			"${scriptaddr} ${prefix}${script}; "    \
330 		"env exists secureboot && load ${devtype} "     \
331 			"${devnum}:${distro_bootpart} "		\
332 			"${scripthdraddr} ${prefix}${boot_script_hdr}; " \
333 			"env exists secureboot "	\
334 			"&& esbc_validate ${scripthdraddr};"    \
335 		"source ${scriptaddr}\0"	  \
336 	"installer=load mmc 0:2 $load_addr "	\
337 		"/flex_installer_arm32.itb; "		\
338 		"bootm $load_addr#ls1021atwr\0"	\
339 	"qspi_bootcmd=echo Trying load from qspi..;"	\
340 		"sf probe && sf read $load_addr "	\
341 		"$kernel_addr $kernel_size && bootm $load_addr#$board\0"	\
342 	"nor_bootcmd=echo Trying load from nor..;"	\
343 		"cp.b $kernel_addr $load_addr "		\
344 		"$kernel_size && bootm $load_addr#$board\0"
345 #else
346 #define CONFIG_EXTRA_ENV_SETTINGS	\
347 	"bootargs=root=/dev/ram0 rw console=ttyS0,115200 "	\
348 		"cma=64M@0x0-0xb0000000\0" \
349 	"initrd_high=0xffffffff\0"      \
350 	"fdt_addr=0x64f00000\0"		\
351 	"kernel_addr=0x61000000\0"	\
352 	"kernelheader_addr=0x60800000\0"	\
353 	"scriptaddr=0x80000000\0"	\
354 	"scripthdraddr=0x80080000\0"	\
355 	"fdtheader_addr_r=0x80100000\0"	\
356 	"kernelheader_addr_r=0x80200000\0"	\
357 	"kernel_addr_r=0x81000000\0"	\
358 	"kernelheader_size=0x40000\0"	\
359 	"fdt_addr_r=0x90000000\0"	\
360 	"ramdisk_addr_r=0xa0000000\0"	\
361 	"load_addr=0xa0000000\0"	\
362 	"kernel_size=0x2800000\0"	\
363 	"kernel_addr_sd=0x8000\0"	\
364 	"kernel_size_sd=0x14000\0"	\
365 	"kernelhdr_addr_sd=0x4000\0"		\
366 	"kernelhdr_size_sd=0x10\0"		\
367 	"othbootargs=cma=64M@0x0-0xb0000000\0"	\
368 	BOOTENV				\
369 	"boot_scripts=ls1021atwr_boot.scr\0"	\
370 	"boot_script_hdr=hdr_ls1021atwr_bs.out\0"	\
371 		"scan_dev_for_boot_part="	\
372 			"part list ${devtype} ${devnum} devplist; "	\
373 			"env exists devplist || setenv devplist 1; "	\
374 			"for distro_bootpart in ${devplist}; do "	\
375 			"if fstype ${devtype} "				\
376 				"${devnum}:${distro_bootpart} "		\
377 				"bootfstype; then "			\
378 				"run scan_dev_for_boot; "		\
379 			"fi; "			\
380 		"done\0"			\
381 	"scan_dev_for_boot="				  \
382 		"echo Scanning ${devtype} "		  \
383 				"${devnum}:${distro_bootpart}...; "  \
384 		"for prefix in ${boot_prefixes}; do "	  \
385 			"run scan_dev_for_scripts; "	  \
386 		"done;"					  \
387 		"\0"					  \
388 	"boot_a_script="				  \
389 		"load ${devtype} ${devnum}:${distro_bootpart} "  \
390 			"${scriptaddr} ${prefix}${script}; "    \
391 		"env exists secureboot && load ${devtype} "     \
392 			"${devnum}:${distro_bootpart} "		\
393 			"${scripthdraddr} ${prefix}${boot_script_hdr} " \
394 			"&& esbc_validate ${scripthdraddr};"    \
395 		"source ${scriptaddr}\0"	  \
396 	"qspi_bootcmd=echo Trying load from qspi..;"	\
397 		"sf probe && sf read $load_addr "	\
398 		"$kernel_addr $kernel_size; env exists secureboot "	\
399 		"&& sf read $kernelheader_addr_r $kernelheader_addr "	\
400 		"$kernelheader_size && esbc_validate ${kernelheader_addr_r}; " \
401 		"bootm $load_addr#$board\0" \
402 	"nor_bootcmd=echo Trying load from nor..;"	\
403 		"cp.b $kernel_addr $load_addr "		\
404 		"$kernel_size; env exists secureboot "	\
405 		"&& cp.b $kernelheader_addr $kernelheader_addr_r "	\
406 		"$kernelheader_size && esbc_validate ${kernelheader_addr_r}; " \
407 		"bootm $load_addr#$board\0"	\
408 	"sd_bootcmd=echo Trying load from SD ..;"       \
409 		"mmcinfo && mmc read $load_addr "	\
410 		"$kernel_addr_sd $kernel_size_sd && "	\
411 		"env exists secureboot && mmc read $kernelheader_addr_r "		\
412 		"$kernelhdr_addr_sd $kernelhdr_size_sd "		\
413 		" && esbc_validate ${kernelheader_addr_r};"	\
414 		"bootm $load_addr#$board\0"
415 #endif
416 
417 #undef CONFIG_BOOTCOMMAND
418 #if defined(CONFIG_QSPI_BOOT) || defined(CONFIG_SD_BOOT_QSPI)
419 #define CONFIG_BOOTCOMMAND "run distro_bootcmd; run qspi_bootcmd; "	\
420 			   "env exists secureboot && esbc_halt"
421 #elif defined(CONFIG_SD_BOOT)
422 #define CONFIG_BOOTCOMMAND "run distro_bootcmd; run sd_bootcmd; "	\
423 			   "env exists secureboot && esbc_halt;"
424 #else
425 #define CONFIG_BOOTCOMMAND "run distro_bootcmd; run nor_bootcmd;"	\
426 			   "env exists secureboot && esbc_halt;"
427 #endif
428 
429 /*
430  * Miscellaneous configurable options
431  */
432 #define CONFIG_SYS_BOOTMAPSZ		(256 << 20)
433 
434 #define CONFIG_SYS_LOAD_ADDR		0x82000000
435 
436 #define CONFIG_LS102XA_STREAM_ID
437 
438 #define CONFIG_SYS_INIT_SP_OFFSET \
439 	(CONFIG_SYS_INIT_RAM_SIZE - GENERATED_GBL_DATA_SIZE)
440 #define CONFIG_SYS_INIT_SP_ADDR \
441 	(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_SP_OFFSET)
442 
443 #ifdef CONFIG_SPL_BUILD
444 #define CONFIG_SYS_MONITOR_BASE CONFIG_SPL_TEXT_BASE
445 #else
446 #define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_TEXT_BASE    /* start of monitor */
447 #endif
448 
449 #define CONFIG_SYS_QE_FW_ADDR     0x60940000
450 
451 /*
452  * Environment
453  */
454 
455 #include <asm/fsl_secure_boot.h>
456 #define CONFIG_SYS_BOOTM_LEN	(64 << 20) /* Increase max gunzip size */
457 
458 #endif
459