| Message ID | 1307440867-18993-1-git-send-email-leiwen@marvell.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Tue, 2011-06-07 at 03:01 -0700, Lei Wen wrote: > When keep_config is set, the detection would goes different routine. > That the driver would read out the setting which is set previously > by bootloader. While most bootloader keep the irq mask as off, and > current driver need all irq default open, keep_config behavior would > lead to no irq at all. > > Signed-off-by: Lei Wen <leiwen@marvell.com> > Tested-by: Daniel Mack <zonque@gmail.com> > Cc: stable@kernel.org When the regression was introduced? Commit id?
Hi Artem, On Tue, Jun 7, 2011 at 7:16 PM, Artem Bityutskiy <dedekind1@gmail.com> wrote: > On Tue, 2011-06-07 at 03:01 -0700, Lei Wen wrote: >> When keep_config is set, the detection would goes different routine. >> That the driver would read out the setting which is set previously >> by bootloader. While most bootloader keep the irq mask as off, and >> current driver need all irq default open, keep_config behavior would >> lead to no irq at all. >> >> Signed-off-by: Lei Wen <leiwen@marvell.com> >> Tested-by: Daniel Mack <zonque@gmail.com> >> Cc: stable@kernel.org > > When the regression was introduced? Commit id? This regression should be introduced by below commit: commit f8155a404db95656f1519b28fdb96cb68f8b2364 Author: Lei Wen <leiwen@marvell.com> Date: Mon Feb 28 10:32:11 2011 +0800 mtd: pxa3xx_nand: rework irq logic So its should be: Cc: stable@kernel.org [2.6.38+] Best regards, Lei
On Tue, 2011-06-07 at 03:01 -0700, Lei Wen wrote: > When keep_config is set, the detection would goes different routine. > That the driver would read out the setting which is set previously > by bootloader. While most bootloader keep the irq mask as off, and > current driver need all irq default open, keep_config behavior would > lead to no irq at all. > > Signed-off-by: Lei Wen <leiwen@marvell.com> > Tested-by: Daniel Mack <zonque@gmail.com> > Cc: stable@kernel.org Pushed both patches to l2-mtd-2.6.git, thanks.
diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c index 1fb3b3a..faa0edd 100644 --- a/drivers/mtd/nand/pxa3xx_nand.c +++ b/drivers/mtd/nand/pxa3xx_nand.c @@ -813,7 +813,7 @@ static int pxa3xx_nand_detect_config(struct pxa3xx_nand_info *info) info->page_size = ndcr & NDCR_PAGE_SZ ? 2048 : 512; /* set info fields needed to read id */ info->read_id_bytes = (info->page_size == 2048) ? 4 : 2; - info->reg_ndcr = ndcr; + info->reg_ndcr = ndcr & ~NDCR_INT_MASK; info->cmdset = &default_cmdset; info->ndtr0cs0 = nand_readl(info, NDTR0CS0); @@ -882,7 +882,7 @@ static int pxa3xx_nand_scan(struct mtd_info *mtd) struct pxa3xx_nand_info *info = mtd->priv; struct platform_device *pdev = info->pdev; struct pxa3xx_nand_platform_data *pdata = pdev->dev.platform_data; - struct nand_flash_dev pxa3xx_flash_ids[2] = { {NULL,}, {NULL,} }; + struct nand_flash_dev pxa3xx_flash_ids[2], *def = NULL; const struct pxa3xx_nand_flash *f = NULL; struct nand_chip *chip = mtd->priv; uint32_t id = -1; @@ -942,8 +942,10 @@ static int pxa3xx_nand_scan(struct mtd_info *mtd) pxa3xx_flash_ids[0].erasesize = f->page_size * f->page_per_block; if (f->flash_width == 16) pxa3xx_flash_ids[0].options = NAND_BUSWIDTH_16; + pxa3xx_flash_ids[1].name = NULL; + def = pxa3xx_flash_ids; KEEP_CONFIG: - if (nand_scan_ident(mtd, 1, pxa3xx_flash_ids)) + if (nand_scan_ident(mtd, 1, def)) return -ENODEV; /* calculate addressing information */ info->col_addr_cycles = (mtd->writesize >= 2048) ? 2 : 1; @@ -954,9 +956,9 @@ KEEP_CONFIG: info->row_addr_cycles = 2; mtd->name = mtd_names[0]; chip->ecc.mode = NAND_ECC_HW; - chip->ecc.size = f->page_size; + chip->ecc.size = info->page_size; - chip->options = (f->flash_width == 16) ? NAND_BUSWIDTH_16 : 0; + chip->options = (info->reg_ndcr & NDCR_DWIDTH_M) ? NAND_BUSWIDTH_16 : 0; chip->options |= NAND_NO_AUTOINCR; chip->options |= NAND_NO_READRDY;