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History for barebox / arch / arm / mach-imx / external-nand-boot.c

2019-03-18	27166fb Browse files » treewide: Make locally used functions static ... Many functions are only used locally but still are globally visible. Make these function static. Avoids warnings generated with -Wmissing-prototypes Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 18 Mar 2019
2018-09-19	e6b0633 Browse files » ARM: i.MX27: Fix NAND boot with newer gcc ... This is a fix for a very weird icache problem when booting from NAND. With a OSELAS-2018.01 toolchain imx27_barebox_boot_nand_external() is compiled like this: 0000063c <imx27_barebox_boot_nand_external>: 63c: e92d4010 push {r4, lr} 640: e1a0200f mov r2, pc 644: e282230a add r2, r2, #671088640 ; 0x28000000 648: e3520b02 cmp r2, #2048 ; 0x800 64c: 9a000012 bls 69c <imx27_barebox_boot_nand_external+0x60> 650: eb000034 bl 728 <imx27_barebox_entry> 654: e592c000 ldr ip, [r2] 658: e2822004 add r2, r2, #4 65c: e580c000 str ip, [r0] 660: e1520001 cmp r2, r1 664: e2820332 add r0, r2, #-939524096 ; 0xc8000000 668: 1afffff9 bne 654 <imx27_barebox_boot_nand_external+0x18> 66c: e1a00003 mov r0, r3 670: e59f2034 ldr r2, [pc, #52] ; 6ac <imx27_barebox_boot_nand_external+0x70> 674: e2401376 sub r1, r0, #-671088639 ; 0xd8000001 678: e59f3030 ldr r3, [pc, #48] ; 6b0 <imx27_barebox_boot_nand_external+0x74> 67c: e1510002 cmp r1, r2 680: 93c004ff bicls r0, r0, #-16777216 ; 0xff000000 684: e1a03a83 lsl r3, r3, #21 688: e1a03aa3 lsr r3, r3, #21 68c: 93c0073e bicls r0, r0, #16252928 ; 0xf80000 690: e283320a add r3, r3, #-1610612736 ; 0xa0000000 694: 9280020a addls r0, r0, #-1610612736 ; 0xa0000000 698: e12fff33 blx r3 69c: e1a03000 mov r3, r0 6a0: e3a02336 mov r2, #-671088640 ; 0xd8000000 6a4: e59f1008 ldr r1, [pc, #8] ; 6b4 <imx27_barebox_boot_nand_external+0x78> 6a8: eaffffec b 660 <imx27_barebox_boot_nand_external+0x24> 6ac: 0007fffe .word 0x0007fffe 6b0: 00000604 .word 0x00000604 6b4: d8000800 .word 0xd8000800 From 0x64c the code jumps to 0x69c and then back to 0x660. The jump to 0x69c triggers a icache line fetch which works fine, but then when the function continues and the code enters the same instruction cache line at 0x680 again then only garbage is executed, most of the time we end up in an endless loop and the CPU jumps back somewhere at the beginning of the function. I have carefully added nops right before the out of line code block. When there are enough nops to move the block to the next cache line then the code works again. That of course is no solution to the problem. Since I am out of ideas what the real issue is let's just disable the icache in this function and re-enable it in the next function. This seems to solve the problem. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Tested-by: Florian Bäuerle <florian.baeuerle@allegion.com> Sascha Hauer committed on 19 Sep 2018
2014-05-05	4f381b1 Browse files » ARM: change signature of barebox_arm_entry ... Mostly to make it clear that boarddata needs to be something we can dereference. As this is a pretty invasive change, use the opportunity to make the signature 64bit safe. Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Lucas Stach authored on 1 May 2014 Sascha Hauer committed on 5 May 2014
2014-02-03	4a53361 Browse files » Merge branch 'for-next/iomem' ... Conflicts: arch/arm/mach-imx/external-nand-boot.c Sascha Hauer committed on 3 Feb 2014
2014-01-31	7ebb5fb Browse files » ARM: i.MX: external NAND boot: make dtb boarddata work ... If we are running from NFC SRAM and we are passed boarddata containing a devicetree pointer then it point to an address relative to the NFC SRAM start. First thing we do is to copy the initial binary to SDRAM and jump there. The devicetree pointer has to be adjusted by this offset. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 31 Jan 2014
2014-01-31	3711a1d Browse files » ARM: i.MX: external NAND boot: use image size from image header ... When compiling with multiimage support ld_var(_barebox_image_size) only contains the length of the PBL image, but not including the appended compressed data. With this patch the image size is read from the barebox header instead which contains the correct size, either from the linker or from the fix_size tool. This makes the external_nand_boot compatible with multiimage support. Tested on Phytec phyCARD-i.MX27 with and without PBL. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 31 Jan 2014
2014-01-29	c5b7986 Browse files » ARM: i.MX: external NAND boot: pass boarddata ... Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 29 Jan 2014
	35ae916 Browse files » ARM: i.MX: external NAND boot: do not depend on cpu_is_* ... With multiboard support the cpu_is_* macros are no longer compile time generated and do not work in early code, so pass a v1 variable around. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 29 Jan 2014
	f77e5b9 Browse files » ARM: i.MX: external NAND boot: make it work with relocatable PBL ... We used to copy the initial binary portion from NFC SRAM to TEXT_BASE and jumped there. With relocatable PBL TEXT_BASE becomes 0, so this doesn't work. This is changed to copy the initial binary portion to the beginning of SDRAM instead. Tested on Phytec phyCARD-i.MX27 and Karo TX25 with and without relocatable pbl. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 29 Jan 2014
	fb2b6d0 Browse files » ARM: i.MX: external_nand_boot: Use __iomem specifier for memory pointer ... Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Alexander Shiyan authored on 25 Jan 2014 Sascha Hauer committed on 29 Jan 2014
2014-01-23	9399c74 Browse files » ARM: i.MX: external NAND boot: create function macro for different SoCs ... Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 23 Jan 2014
2014-01-23	f1d83fa Browse files » ARM: i.MX: external NAND boot: factor out a 2k pagesize detection function ... Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 23 Jan 2014
2013-12-03	fbf502a Browse files » ARM: i.MX external NAND boot: Add missing instruction cache invalidate ... Before we jump to SDRAM where we just copied our code we have to invalidate the instruction cache. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 3 Dec 2013
2013-07-11	ed91fac Browse files » ARM: i.MX: External Nand boot: remove ifdefs around SoC functions ... The ifdefs around the SoC specific boot_nand_external functions can be removed when all functions go into their own sections so that the linker can discard the unused functions. This also adds a #ifdef BROKEN around the i.MX21 code which currently does not have the imx21_barebox_entry function. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 11 Jul 2013
	3ccb034 Browse files » ARM: i.MX: External Nand boot: remove ifdefs ... Instead of ifdeffing out the correct NFC base address just pass it to imx_nand_load_image which is called from SoC specific context anyway. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 11 Jul 2013
	09b9676 Browse files » ARM: i.MX: External Nand boot: move pagesize detection into SoC specific code ... Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 11 Jul 2013
	3de30a4 Browse files » ARM: i.MX: External Nand boot: remove debug command ... The debug command does not work with SoC specific entry points. remove it. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 11 Jul 2013
	5a3329f Browse files » ARM: i.MX: External Nand boot: make 2k support nonoptional ... All boards using the external nand boot code autodetect the pagesize, so make this nonoptional to make the code simpler. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 11 Jul 2013
2013-04-04	dd9f6d0 Browse files » Merge branch 'for-next/relocate' ... Conflicts: arch/arm/lib/barebox.lds.S Sascha Hauer committed on 4 Apr 2013
2013-03-12	1512479 Browse files » ARM: i.MX: Add bbu handler for external NAND boot ... The external NAND boot code currently does not handle bad blocks correctly on 2k NAND flashes. This patch adds a barebox_update handler for external NAND boot which embeds a Bad block table in the flashed image. The boot code will skip bad blocks found in this bad block table then. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 12 Mar 2013
2013-03-12	6e2a07e Browse files » ARM: i.MX: external nand boot: check for bad blocks ... The i.MX external NAND boot code checks for a bad block every page, which is wrong. Instead, check for a bad block at the beginning of each block. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 12 Mar 2013
2013-03-07	0197125 Browse files » ARM boards: Use accessor functions to access linker variables ... Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 7 Mar 2013
2013-02-26	94466be Browse files » ARM i.MX: Fix booting from NOR when external nand boot is enabled ... We cannot jump to SDRAM unconditionally in imx*_barebox_boot_nand_external. When we really boot from NOR flash the binary is not yet copied to SDRAM. Instead, let the return value of imx_barebox_boot_nand_external() indicate whether we really boot from NAND and only jump to SDRAM in this case. Otherwise just continue to the normal SoC specific entry. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 26 Feb 2013
2013-02-04	f2a8e35 Browse files » ARM i.MX boards: switch to barebox_arm_entry ... Most i.MX boards can use the imx*_barebox_entry functions. The remaining (i.MX21, i.MX6) use hardcoded base addresses. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 4 Feb 2013
2013-02-04	cf4271e Browse files » ARM i.MX: prepare external nand boot for SoC specific entry ... i.MX will get SoC specific entry points for barebox. To find the correct one we have to call these from the SoC specific imx*_barebox_boot_nand_external functions. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 4 Feb 2013
2013-01-20	6e45abe Browse files » ARM i.MX: Add a common NAND entry for external boot mode ... The pattern for i.MX boards starting in external NAND boot mode is always the same: - Check if we are running in NFC address space, if not call board_init_lowlevel_return() - copy binary to link address - execute relocated binary - call imx_nand_load_image() Add a common function for this to make the board code easier. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 20 Jan 2013
2012-10-17	b1b76f6 Browse files » ARM i.MX: get rid of imx-regs.h ... - remove now unused __REG definitions - include individual SoC register files instead of imx-regs.h - move IMX_GPIO_NR to generic.h - finally remove imx-regs.h Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 17 Oct 2012
	4c53af0 Browse files » ARM i.MX: remove unused improperly prefixed register defines ... Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 17 Oct 2012
	d089e3c Browse files » ARM i.MX external nand boot: Use SoC specific base addresses ... Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 17 Oct 2012
	dc9d70e Browse files » ARM i.MX35: Cleanup remaining unprefixed registers ... Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 17 Oct 2012