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Diffstat (limited to 'target/linux/bcm53xx/patches-3.14')
-rw-r--r--target/linux/bcm53xx/patches-3.14/420-mtd-bcm5301x_nand.patch122
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 0e03870..53840f3 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");
generated by cgit v1.1 at 2024-12-29 16:46:09 +0000