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authorSimon Glass <sjg@chromium.org>2015-08-30 19:19:14 -0600
committerTom Rini <trini@konsulko.com>2015-09-11 14:56:04 -0400
commit0abdd9d01ac6ca58d8c5765bdaf4283949fdcd76 (patch)
tree8e49977d9307021bc755d3441eebca83d6f230b3 /drivers
parentb6073fd2115ec3418cead26ce8acaf5cfb0e2f98 (diff)
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arm: Remove nhk8815 boards and nomadik arch
These boards have not been converted to generic board by the deadline. Remove them. Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/mtd/nand/Makefile1
-rw-r--r--drivers/mtd/nand/nomadik.c206
2 files changed, 0 insertions, 207 deletions
diff --git a/drivers/mtd/nand/Makefile b/drivers/mtd/nand/Makefile
index 71c1a51..b4e5376 100644
--- a/drivers/mtd/nand/Makefile
+++ b/drivers/mtd/nand/Makefile
@@ -60,7 +60,6 @@ obj-$(CONFIG_NAND_VF610_NFC) += vf610_nfc.o
obj-$(CONFIG_NAND_MXC) += mxc_nand.o
obj-$(CONFIG_NAND_MXS) += mxs_nand.o
obj-$(CONFIG_NAND_NDFC) += ndfc.o
-obj-$(CONFIG_NAND_NOMADIK) += nomadik.o
obj-$(CONFIG_NAND_PXA3XX) += pxa3xx_nand.o
obj-$(CONFIG_NAND_S3C2410) += s3c2410_nand.o
obj-$(CONFIG_NAND_SPEAR) += spr_nand.o
diff --git a/drivers/mtd/nand/nomadik.c b/drivers/mtd/nand/nomadik.c
deleted file mode 100644
index a7cee51..0000000
--- a/drivers/mtd/nand/nomadik.c
+++ /dev/null
@@ -1,206 +0,0 @@
-/*
- * (C) Copyright 2007 STMicroelectronics, <www.st.com>
- * (C) Copyright 2009 Alessandro Rubini <rubini@unipv.it>
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <common.h>
-#include <nand.h>
-#include <asm/io.h>
-
-static inline int parity(int b) /* b is really a byte; returns 0 or ~0 */
-{
- __asm__ __volatile__(
- "eor %0, %0, %0, lsr #4\n\t"
- "eor %0, %0, %0, lsr #2\n\t"
- "eor %0, %0, %0, lsr #1\n\t"
- "ands %0, %0, #1\n\t"
- "subne %0, %0, #2\t"
- : "=r" (b) : "0" (b));
- return b;
-}
-
-/*
- * This is the ECC routine used in hardware, according to the manual.
- * HW claims to make the calculation but not the correction; so we must
- * recalculate the bytes for a comparison.
- */
-static int ecc512(const unsigned char *data, unsigned char *ecc)
-{
- int gpar = 0;
- int i, val, par;
- int pbits = 0; /* P8, P16, ... P2048 */
- int pprime = 0; /* P8', P16', ... P2048' */
- int lowbits; /* P1, P2, P4 and primes */
-
- for (i = 0; i < 512; i++) {
- par = parity((val = data[i]));
- gpar ^= val;
- pbits ^= (i & par);
- }
- /*
- * Ok, now gpar is global parity (xor of all bytes)
- * pbits are all the parity bits (non-prime ones)
- */
- par = parity(gpar);
- pprime = pbits ^ par;
- /* Put low bits in the right position for ecc[2] (bits 7..2) */
- lowbits = 0
- | (parity(gpar & 0xf0) & 0x80) /* P4 */
- | (parity(gpar & 0x0f) & 0x40) /* P4' */
- | (parity(gpar & 0xcc) & 0x20) /* P2 */
- | (parity(gpar & 0x33) & 0x10) /* P2' */
- | (parity(gpar & 0xaa) & 0x08) /* P1 */
- | (parity(gpar & 0x55) & 0x04); /* P1' */
-
- ecc[2] = ~(lowbits | ((pbits & 0x100) >> 7) | ((pprime & 0x100) >> 8));
- /* now intermix bits for ecc[1] (P1024..P128') and ecc[0] (P64..P8') */
- ecc[1] = ~( (pbits & 0x80) >> 0 | ((pprime & 0x80) >> 1)
- | ((pbits & 0x40) >> 1) | ((pprime & 0x40) >> 2)
- | ((pbits & 0x20) >> 2) | ((pprime & 0x20) >> 3)
- | ((pbits & 0x10) >> 3) | ((pprime & 0x10) >> 4));
-
- ecc[0] = ~( (pbits & 0x8) << 4 | ((pprime & 0x8) << 3)
- | ((pbits & 0x4) << 3) | ((pprime & 0x4) << 2)
- | ((pbits & 0x2) << 2) | ((pprime & 0x2) << 1)
- | ((pbits & 0x1) << 1) | ((pprime & 0x1) << 0));
- return 0;
-}
-
-/* This is the method in the chip->ecc field */
-static int nomadik_ecc_calculate(struct mtd_info *mtd, const uint8_t *dat,
- uint8_t *ecc_code)
-{
- return ecc512(dat, ecc_code);
-}
-
-static int nomadik_ecc_correct(struct mtd_info *mtd, uint8_t *dat,
- uint8_t *r_ecc, uint8_t *c_ecc)
-{
- struct nand_chip *chip = mtd->priv;
- uint32_t r, c, d, diff; /*read, calculated, xor of them */
-
- if (!memcmp(r_ecc, c_ecc, chip->ecc.bytes))
- return 0;
-
- /* Reorder the bytes into ascending-order 24 bits -- see manual */
- r = r_ecc[2] << 22 | r_ecc[1] << 14 | r_ecc[0] << 6 | r_ecc[2] >> 2;
- c = c_ecc[2] << 22 | c_ecc[1] << 14 | c_ecc[0] << 6 | c_ecc[2] >> 2;
- diff = (r ^ c) & ((1<<24)-1); /* use 24 bits only */
-
- /* If 12 bits are different, one per pair, it's correctable */
- if (((diff | (diff>>1)) & 0x555555) == 0x555555) {
- int bit = ((diff & 2) >> 1)
- | ((diff & 0x8) >> 2) | ((diff & 0x20) >> 3);
- int byte;
-
- d = diff >> 6; /* remove bit-order info */
- byte = ((d & 2) >> 1)
- | ((d & 0x8) >> 2) | ((d & 0x20) >> 3)
- | ((d & 0x80) >> 4) | ((d & 0x200) >> 5)
- | ((d & 0x800) >> 6) | ((d & 0x2000) >> 7)
- | ((d & 0x8000) >> 8) | ((d & 0x20000) >> 9);
- /* correct the single bit */
- dat[byte] ^= 1<<bit;
- return 0;
- }
- /* If 1 bit only differs, it's one bit error in ECC, ignore */
- if ((diff ^ (1 << (ffs(diff) - 1))) == 0)
- return 0;
- /* Otherwise, uncorrectable */
- return -1;
-}
-
-static void nomadik_ecc_hwctl(struct mtd_info *mtd, int mode)
-{ /* mandatory in the structure but not used here */ }
-
-
-/* This is the layout used by older installations, we keep compatible */
-struct nand_ecclayout nomadik_ecc_layout = {
- .eccbytes = 3 * 4,
- .eccpos = { /* each subpage has 16 bytes: pos 2,3,4 hosts ECC */
- 0x02, 0x03, 0x04,
- 0x12, 0x13, 0x14,
- 0x22, 0x23, 0x24,
- 0x32, 0x33, 0x34},
- .oobfree = { {0x08, 0x08}, {0x18, 0x08}, {0x28, 0x08}, {0x38, 0x08} },
-};
-
-#define MASK_ALE (1 << 24) /* our ALE is AD21 */
-#define MASK_CLE (1 << 23) /* our CLE is AD22 */
-
-/* This is copied from the AT91SAM9 devices (Stelian Pop, Lead Tech Design) */
-static void nomadik_nand_hwcontrol(struct mtd_info *mtd,
- int cmd, unsigned int ctrl)
-{
- struct nand_chip *this = mtd->priv;
- u32 pcr0 = readl(REG_FSMC_PCR0);
-
- if (ctrl & NAND_CTRL_CHANGE) {
- ulong IO_ADDR_W = (ulong) this->IO_ADDR_W;
- IO_ADDR_W &= ~(MASK_ALE | MASK_CLE);
-
- if (ctrl & NAND_CLE)
- IO_ADDR_W |= MASK_CLE;
- if (ctrl & NAND_ALE)
- IO_ADDR_W |= MASK_ALE;
-
- if (ctrl & NAND_NCE)
- writel(pcr0 | 0x4, REG_FSMC_PCR0);
- else
- writel(pcr0 & ~0x4, REG_FSMC_PCR0);
-
- this->IO_ADDR_W = (void *) IO_ADDR_W;
- this->IO_ADDR_R = (void *) IO_ADDR_W;
- }
-
- if (cmd != NAND_CMD_NONE)
- writeb(cmd, this->IO_ADDR_W);
-}
-
-/* Returns 1 when ready; upper layers timeout at 20ms with timer routines */
-static int nomadik_nand_ready(struct mtd_info *mtd)
-{
- return 1; /* The ready bit is handled in hardware */
-}
-
-/* Copy a buffer 32bits at a time: faster than defualt method which is 8bit */
-static void nomadik_nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
-{
- int i;
- struct nand_chip *chip = mtd->priv;
- u32 *p = (u32 *) buf;
-
- len >>= 2;
- writel(0, REG_FSMC_ECCR0);
- for (i = 0; i < len; i++)
- p[i] = readl(chip->IO_ADDR_R);
-}
-
-int board_nand_init(struct nand_chip *chip)
-{
- /* Set up the FSMC_PCR0 for nand access*/
- writel(0x0000004a, REG_FSMC_PCR0);
- /* Set up FSMC_PMEM0, FSMC_PATT0 with timing data for access */
- writel(0x00020401, REG_FSMC_PMEM0);
- writel(0x00020404, REG_FSMC_PATT0);
-
- chip->options = NAND_COPYBACK | NAND_CACHEPRG | NAND_NO_PADDING;
- chip->cmd_ctrl = nomadik_nand_hwcontrol;
- chip->dev_ready = nomadik_nand_ready;
- /* The chip allows 32bit reads, so avoid the default 8bit copy */
- chip->read_buf = nomadik_nand_read_buf;
-
- /* ECC: follow the hardware-defined rulse, but do it in sw */
- chip->ecc.mode = NAND_ECC_HW;
- chip->ecc.bytes = 3;
- chip->ecc.size = 512;
- chip->ecc.strength = 1;
- chip->ecc.layout = &nomadik_ecc_layout;
- chip->ecc.calculate = nomadik_ecc_calculate;
- chip->ecc.hwctl = nomadik_ecc_hwctl;
- chip->ecc.correct = nomadik_ecc_correct;
-
- return 0;
-}