diff options
Diffstat (limited to 'target/linux/bcm53xx/patches-3.14/420-mtd-bcm5301x_nand.patch')
| -rw-r--r-- | target/linux/bcm53xx/patches-3.14/420-mtd-bcm5301x_nand.patch | 122 |
1 files changed, 56 insertions, 66 deletions
diff --git a/target/linux/bcm53xx/patches-3.14/420-mtd-bcm5301x_nand.patch b/target/linux/bcm53xx/patches-3.14/420-mtd-bcm5301x_nand.patch index 0e03870883..53840f3c4b 100644 --- a/target/linux/bcm53xx/patches-3.14/420-mtd-bcm5301x_nand.patch +++ b/target/linux/bcm53xx/patches-3.14/420-mtd-bcm5301x_nand.patch @@ -22,10 +22,9 @@ nand-objs := nand_base.o nand_bbt.o --- /dev/null +++ b/drivers/mtd/nand/bcm_nand.c -@@ -0,0 +1,1590 @@ +@@ -0,0 +1,1580 @@ +/* + * Nortstar NAND controller driver -+ * for Linux NAND library and MTD interface + * + * (c) Broadcom, Inc. 2012 All Rights Reserved. + * Copyright 2014 Hauke Mehrtens <hauke@hauke-m.de> @@ -68,9 +67,6 @@ + +#define NANDC_MAX_CHIPS 2 /* Only 2 CSn supported in NorthStar */ + -+#define DRV_NAME "bcmnand" -+#define DRV_DESC "Northstar on-chip NAND Flash Controller driver" -+ +/* + * Driver private control structure + */ @@ -421,6 +417,7 @@ +static int bcmnand_hw_ecc_layout(struct bcmnand_ctrl *ctrl) +{ + struct nand_ecclayout *layout; ++ struct device *dev = &ctrl->core->dev; + unsigned int i, j, k; + unsigned int ecc_per_sec, oob_per_sec; + unsigned int bbm_pos = ctrl->nand.badblockpos; @@ -453,8 +450,8 @@ + /* Return an error if calculated ECC leaves no room for OOB */ + if ((ctrl->sec_per_page_shift != 0 && ecc_per_sec >= oob_per_sec) || + (ctrl->sec_per_page_shift == 0 && ecc_per_sec >= (oob_per_sec - 1))) { -+ pr_err("%s: ECC level %d too high, leaves no room for OOB data\n", -+ DRV_NAME, ctrl->ecc_level); ++ dev_err(dev, "ECC level %d too high, leaves no room for OOB data\n", ++ ctrl->ecc_level); + return -EINVAL; + } + @@ -486,8 +483,8 @@ + + /* Check that HW ECC does not overlap bad-block marker */ + if (bbm_pos == layout->eccpos[i]) { -+ pr_err("%s: ECC level %d too high, HW ECC collides with bad-block marker position\n", -+ DRV_NAME, ctrl->ecc_level); ++ dev_err(dev, "ECC level %d too high, HW ECC collides with bad-block marker position\n", ++ ctrl->ecc_level); + return -EINVAL; + } + } @@ -530,18 +527,17 @@ + ctrl->nand.ecc.layout = layout; + + /* Output layout for debugging */ -+ pr_debug("%s: Spare area=%d eccbytes %d, ecc bytes located at:\n", -+ DRV_NAME, ctrl->mtd.oobsize, layout->eccbytes); ++ dev_dbg(dev, "Spare area=%d eccbytes %d, ecc bytes located at:\n", ++ ctrl->mtd.oobsize, layout->eccbytes); + for (i = j = 0; + i < ARRAY_SIZE(layout->eccpos) && i < layout->eccbytes; i++) + pr_debug(" %d", layout->eccpos[i]); ++ pr_debug("\n"); + -+ pr_debug("\n%s: Available %d bytes at (off,len):\n", DRV_NAME, -+ layout->oobavail); ++ dev_dbg(dev, "Available %d bytes at (off,len):\n", layout->oobavail); + for (i = 0; i < ARRAY_SIZE(layout->oobfree); i++) + pr_debug("(%d,%d) ", layout->oobfree[i].offset, + layout->oobfree[i].length); -+ + pr_debug("\n"); + + return 0; @@ -811,8 +807,7 @@ + bcmnand_reg_awrite(ctrl, NANDC_IDM_APB_LITTLE_ENDIAN, 1); + + memcpy(chip->oob_poi + sector * spare_per_sec, -+ ctrl_spare, -+ spare_per_sec); ++ ctrl_spare, spare_per_sec); + + /* Return to Big Endian mode for commands etc */ + bcmnand_reg_awrite(ctrl, NANDC_IDM_APB_LITTLE_ENDIAN, 0); @@ -861,9 +856,8 @@ + /* Set controller to Little Endian mode for copying */ + bcmnand_reg_awrite(ctrl, NANDC_IDM_APB_LITTLE_ENDIAN, 1); + -+ memcpy(ctrl_spare, -+ chip->oob_poi + sector * spare_per_sec, -+ spare_per_sec); ++ memcpy(ctrl_spare, chip->oob_poi + sector * spare_per_sec, ++ spare_per_sec); + + /* Return to Big Endian mode for commands etc */ + bcmnand_reg_awrite(ctrl, NANDC_IDM_APB_LITTLE_ENDIAN, 0); @@ -1149,6 +1143,7 @@ +{ + struct nand_chip *nand = mtd->priv; + struct bcmnand_ctrl *ctrl = nand->priv; ++ struct device *dev = &ctrl->core->dev; + uint8_t b = ~0; + + switch (ctrl->last_cmd) { @@ -1167,8 +1162,8 @@ + b = bcmnand_reg_read(ctrl, NANDC_INT_STAT_FLASH_STATUS); + break; + default: -+ pr_err("%s: got unkown command: 0x%x in %s\n", DRV_NAME, -+ ctrl->last_cmd, __func__); ++ dev_err(dev, "got unkown command: 0x%x in read_byte\n", ++ ctrl->last_cmd); + } + return b; +} @@ -1212,6 +1207,7 @@ +{ + struct nand_chip *nand = mtd->priv; + struct bcmnand_ctrl *ctrl = nand->priv; ++ struct device *dev = &ctrl->core->dev; + u64 nand_addr; + unsigned int to = 1; + @@ -1291,8 +1287,8 @@ + return; + + default: -+ pr_err("%s: got unkown command: 0x%x in %s\n", DRV_NAME, -+ ctrl->last_cmd, __func__); ++ dev_err(dev, "got unkown command: 0x%x in cmdfunc\n", ++ ctrl->last_cmd); + } + + /* Wait for command to complete */ @@ -1304,6 +1300,7 @@ +{ + struct nand_chip *nand = mtd->priv; + struct bcmnand_ctrl *ctrl = nand->priv; ++ struct device *dev = &ctrl->core->dev; + bool sector_1k = false; + unsigned int chip_num = 0; + int ecc_level = 0; @@ -1340,14 +1337,14 @@ + if (WARN_ON(ctrl->ecc_level == 0)) + return -ENOENT; + -+ if ((ctrl->sector_size_shift > 9) != (sector_1k == 1)) { -+ pr_info("%s: sector size adjusted to 1k\n", DRV_NAME); ++ if ((ctrl->sector_size_shift > 9) != (sector_1k == 1)) { ++ dev_info(dev, "sector size adjusted to 1k\n"); + sector_1k = 1; + } + + if (ecc_level != ctrl->ecc_level) { -+ pr_info("%s: ECC level adjusted from %u to %u\n", -+ DRV_NAME, ecc_level, ctrl->ecc_level); ++ dev_info(dev, "ECC level adjusted from %u to %u\n", ++ ecc_level, ctrl->ecc_level); + ecc_level = ctrl->ecc_level; + } + @@ -1384,8 +1381,7 @@ + if (!(nand->options & NAND_ROM)) + bcmnand_reg_write(ctrl, NANDC_CS_NAND_WP, 0); + -+ pr_debug("%s: layout.oobavail=%d\n", DRV_NAME, -+ nand->ecc.layout->oobavail); ++ dev_dbg(dev, "layout.oobavail=%d\n", nand->ecc.layout->oobavail); + + ret = nand_scan_tail(mtd); + @@ -1395,9 +1391,9 @@ + return -EIO; + + /* Spit out some key chip parameters as detected by nand_base */ -+ pr_debug("%s: erasesize=%d writesize=%d oobsize=%d page_shift=%d badblockpos=%d badblockbits=%d\n", -+ DRV_NAME, mtd->erasesize, mtd->writesize, mtd->oobsize, -+ nand->page_shift, nand->badblockpos, nand->badblockbits); ++ dev_dbg(dev, "erasesize=%d writesize=%d oobsize=%d page_shift=%d badblockpos=%d badblockbits=%d\n", ++ mtd->erasesize, mtd->writesize, mtd->oobsize, ++ nand->page_shift, nand->badblockpos, nand->badblockbits); + + return ret; +} @@ -1410,7 +1406,7 @@ + unsigned int chip; + struct nand_chip *nand; + struct mtd_info *mtd; -+ unsigned int n = 0; ++ struct device *dev = &ctrl->core->dev; + int ret; + + /* Software variables init */ @@ -1421,14 +1417,14 @@ + + mtd->priv = nand; + mtd->owner = THIS_MODULE; -+ mtd->name = DRV_NAME; ++ mtd->name = KBUILD_MODNAME; + + nand->priv = ctrl; + + nand->chip_delay = 5; /* not used */ + nand->IO_ADDR_R = nand->IO_ADDR_W = (void *)~0L; + -+ if (bcmnand_reg_read(ctrl, NANDC_CONFIG_CHIP_WIDTH(n))) ++ if (bcmnand_reg_read(ctrl, NANDC_CONFIG_CHIP_WIDTH(0))) + nand->options |= NAND_BUSWIDTH_16; + nand->options |= NAND_SKIP_BBTSCAN; /* Dont need BBTs */ + @@ -1456,38 +1452,39 @@ + + /* Print out current chip config */ + for (chip = 0; chip < NANDC_MAX_CHIPS; chip++) { -+ pr_debug("%s: chip[%d]: size=%#x block=%#x page=%#x ecc_level=%#x\n", -+ DRV_NAME, chip, -+ bcmnand_reg_read(ctrl, NANDC_CONFIG_CHIP_SIZE(chip)), -+ bcmnand_reg_read(ctrl, NANDC_CONFIG_BLK_SIZE(chip)), -+ bcmnand_reg_read(ctrl, NANDC_CONFIG_PAGE_SIZE(chip)), -+ bcmnand_reg_read(ctrl, NANDC_ACC_CTRL_ECC_LEVEL(chip))); ++ dev_dbg(dev, "chip[%d]: size=%#x block=%#x page=%#x ecc_level=%#x\n", ++ chip, ++ bcmnand_reg_read(ctrl, NANDC_CONFIG_CHIP_SIZE(chip)), ++ bcmnand_reg_read(ctrl, NANDC_CONFIG_BLK_SIZE(chip)), ++ bcmnand_reg_read(ctrl, NANDC_CONFIG_PAGE_SIZE(chip)), ++ bcmnand_reg_read(ctrl, NANDC_ACC_CTRL_ECC_LEVEL(chip))); + } + -+ pr_debug("%s: Nand controller is reads=%d\n", DRV_NAME, ++ dev_dbg(dev, "Nand controller is reads=%d\n", + bcmnand_reg_aread(ctrl, NANDC_IDM_IO_CTRL_RDY)); + + ret = bcmnand_scan(mtd); + if (ret) { -+ pr_err("%s: scanning the nand flash chip failed with %i\n", -+ DRV_NAME, ret); ++ dev_err(dev, "scanning the nand flash chip failed with %i\n", ++ ret); + return ret; + } + + return 0; +} + -+static int __init bcmnand_idm_init(struct bcmnand_ctrl *ctrl) ++static int bcmnand_idm_init(struct bcmnand_ctrl *ctrl) +{ + int irq_off; + unsigned int retries = 0x1000; ++ struct device *dev = &ctrl->core->dev; + + if (bcmnand_reg_aread(ctrl, NANDC_IDM_RESET)) -+ pr_err("%s: stuck in reset\n", DRV_NAME); ++ dev_info(dev, "stuck in reset\n"); + + bcmnand_reg_awrite(ctrl, NANDC_IDM_RESET, 1); + if (!bcmnand_reg_aread(ctrl, NANDC_IDM_RESET)) { -+ pr_err("%s: reset of failed\n", DRV_NAME); ++ dev_err(dev, "reset of failed\n"); + return -EIO; + } + @@ -1496,8 +1493,7 @@ + cpu_relax(); + usleep_range(100, 150); + if (!(retries--)) { -+ pr_err("%s: did not came back from reset\n", -+ DRV_NAME); ++ dev_err(dev, "did not came back from reset\n"); + return -ETIMEDOUT; + } + } @@ -1506,7 +1502,7 @@ + bcmnand_reg_awrite(ctrl, NANDC_IDM_APB_LITTLE_ENDIAN, 0); + udelay(10); + -+ pr_info("%s: NAND Controller rev %d.%d\n", DRV_NAME, ++ dev_info(dev, "NAND Controller rev %d.%d\n", + bcmnand_reg_read(ctrl, NANDC_REV_MAJOR), + bcmnand_reg_read(ctrl, NANDC_REV_MINOR)); + @@ -1543,14 +1539,14 @@ + for (i = 0; i < NANDC_IRQ_NUM; i++) { + irq = bcma_core_irq(core, i); + if (!irq) { -+ pr_err("%s: IRQ no available irq: %i (idx: %i)\n", -+ DRV_NAME, irq, i); -+ return res; ++ dev_err(dev, "IRQ idx %i not available\n", i); ++ return -ENOENT; + } -+ res = devm_request_irq(dev, irq, bcmnand_isr, 0, DRV_NAME, ctrl); ++ res = devm_request_irq(dev, irq, bcmnand_isr, 0, ++ KBUILD_MODNAME, ctrl); + if (res < 0) { -+ pr_err("%s: problem requesting irq: %i (idx: %i)\n", -+ DRV_NAME, irq, i); ++ dev_err(dev, "problem requesting irq: %i (idx: %i)\n", ++ irq, i); + return res; + } + } @@ -1565,7 +1561,7 @@ + + res = mtd_device_parse_register(&ctrl->mtd, part_probes, NULL, NULL, 0); + if (res) { -+ pr_err("%s: Failed to register MTD device: %d\n", DRV_NAME, res); ++ dev_err(dev, "Failed to register MTD device: %d\n", res); + return res; + } + return 0; @@ -1593,14 +1589,7 @@ + +static int __init bcmnand_init(void) +{ -+ int err; -+ -+ err = bcma_driver_register(&bcmnand_bcma_driver); -+ if (err) -+ return err; -+ pr_info("%s: Broadcom NAND Controller driver loaded\n", DRV_NAME); -+ -+ return 0; ++ return bcma_driver_register(&bcmnand_bcma_driver); +} + +static void __exit bcmnand_exit(void) @@ -1612,4 +1601,5 @@ +module_exit(bcmnand_exit) + +MODULE_LICENSE("GPL"); -+MODULE_DESCRIPTION(DRV_DESC); ++MODULE_AUTHOR("Hauke Mehrtens"); ++MODULE_DESCRIPTION("Northstar on-chip NAND Flash Controller driver"); |