From mboxrd@z Thu Jan 1 00:00:00 1970 From: marex@denx.de (Marek Vasut) Date: Mon, 21 May 2012 03:02:17 +0200 Subject: [PATCH 1/4] GPMI-NAND: Define ecc.strength Message-ID: <1337562140-5739-1-git-send-email-marex@denx.de> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org The ecc.strength wasn't set, resulting in the following crash: [ 2.550000] kernel BUG at drivers/mtd/nand/nand_base.c:3347! [ 2.550000] Internal error: Oops - BUG: 0 [#1] ARM [ 2.550000] Modules linked in: [ 2.550000] CPU: 0 Not tainted (3.4.0-rc7-next-20120518-dirty #1211) [ 2.550000] PC is at nand_scan_tail+0x328/0x650 [ 2.550000] LR is at nand_scan_tail+0x328/0x650 [ 2.550000] pc : [] lr : [] psr: 20000013 [ 2.550000] sp : c7443ea8 ip : c7448000 fp : c043dc70 [ 2.550000] r10: 00000000 r9 : c059dd20 r8 : c7526300 [ 2.550000] r7 : 00000001 r6 : c7479c08 r5 : c7526300 r4 : c7526098 [ 2.550000] r3 : c7448000 r2 : 00000000 r1 : 00000001 r0 : 00000034 [ 2.550000] Flags: nzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment kernel [ 2.550000] Control: 0005317f Table: 40004000 DAC: 00000017 [ 2.550000] Process swapper (pid: 1, stack limit = 0xc7442270) [ 2.550000] Stack: (0xc7443ea8 to 0xc7444000) [ 2.550000] 3ea0: c7526000 00000000 c7479c08 c02f68e0 c03d50ec c7526000 [ 2.550000] 3ec0: c747c6e0 00000000 c0ae7720 00000004 00000000 00000000 c7479c08 c0ae7720 [ 2.550000] 3ee0: c7479c3c c0593e20 c7572200 c01f6618 c01f6604 c01f55b0 c7479c08 c0593e20 [ 2.550000] 3f00: c7479c3c c059dd20 c7572200 c01f57cc 00000000 c0593e20 c01f5738 c01f3d40 [ 2.550000] 3f20: c74038a8 c74767d0 c0593e20 c04475ec c05901b8 c01f4e18 c03d50e0 c019d438 [ 2.550000] 3f40: c7403800 c0593e20 c04475ec 00000000 c059dd20 c04475f8 c7442000 c01f5a70 [ 2.550000] 3f60: 00000000 c044e98c c04475ec 00000000 c059dd20 c04475f8 c7442000 c043dc7c [ 2.550000] 3f80: c044e98c c0008824 c03d6c30 c040c4e4 00000006 00000006 c03b0ce4 c0bf54e0 [ 2.550000] 3fa0: c044e98c c04475ec 00000006 c04475f8 0000004c c042a21c 00000000 c042a8b8 [ 2.550000] 3fc0: 00000006 00000006 c042a21c 00000000 00000000 00000000 00000000 c042a7bc [ 2.550000] 3fe0: c000fab4 00000013 00000000 00000000 00000000 c000fab4 efbbfaa5 eaeafefe [ 2.550000] [] (nand_scan_tail+0x328/0x650) from [] (gpmi_nand_probe+0x43c/0x5a4) [ 2.550000] [] (gpmi_nand_probe+0x43c/0x5a4) from [] (platform_drv_probe+0x14/0x18) [ 2.550000] [] (platform_drv_probe+0x14/0x18) from [] (driver_probe_device+0x74/0x1fc) [ 2.550000] [] (driver_probe_device+0x74/0x1fc) from [] (__driver_attach+0x94/0x98) [ 2.550000] [] (__driver_attach+0x94/0x98) from [] (bus_for_each_dev+0x50/0x80) [ 2.550000] [] (bus_for_each_dev+0x50/0x80) from [] (bus_add_driver+0x188/0x25c) [ 2.550000] [] (bus_add_driver+0x188/0x25c) from [] (driver_register+0x78/0x138) [ 2.550000] [] (driver_register+0x78/0x138) from [] (gpmi_nand_init+0xc/0x30) [ 2.550000] [] (gpmi_nand_init+0xc/0x30) from [] (do_one_initcall+0x108/0x17c) [ 2.550000] [] (do_one_initcall+0x108/0x17c) from [] (kernel_init+0xfc/0x1bc) [ 2.550000] [] (kernel_init+0xfc/0x1bc) from [] (kernel_thread_exit+0x0/0x8) [ 2.550000] Code: e3530000 1affff76 e59f02d0 eb03c16a (e7f001f2) [ 2.830000] ---[ end trace 3f05d4c0039432f1 ]--- [ 2.840000] Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b Signed-off-by: Marek Vasut Cc: Huang Shijie Cc: Shawn Guo Cc: Fabio Estevam --- drivers/mtd/nand/gpmi-nand/gpmi-nand.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c index 9b4c109..f5f3d761 100644 --- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c +++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c @@ -1436,6 +1436,9 @@ static int gpmi_pre_bbt_scan(struct gpmi_nand_data *this) if (ret) return ret; + /* Adjust the ECC strength according to the chip. */ + this->nand.ecc.strength = this->bch_geometry.ecc_strength; + /* NAND boot init, depends on the gpmi_set_geometry(). */ return nand_boot_init(this); } @@ -1494,6 +1497,7 @@ static int __devinit gpmi_nfc_init(struct gpmi_nand_data *this) chip->options |= NAND_NO_SUBPAGE_WRITE; chip->ecc.mode = NAND_ECC_HW; chip->ecc.size = 1; + chip->ecc.strength = 8; chip->ecc.layout = &gpmi_hw_ecclayout; /* Allocate a temporary DMA buffer for reading ID in the nand_scan() */ -- 1.7.10