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path: root/drivers/mtd/nand/sc8830_nand.c
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Diffstat (limited to 'drivers/mtd/nand/sc8830_nand.c')
-rwxr-xr-xdrivers/mtd/nand/sc8830_nand.c2267
1 files changed, 2267 insertions, 0 deletions
diff --git a/drivers/mtd/nand/sc8830_nand.c b/drivers/mtd/nand/sc8830_nand.c
new file mode 100755
index 00000000..edad892f
--- /dev/null
+++ b/drivers/mtd/nand/sc8830_nand.c
@@ -0,0 +1,2267 @@
+/*
+ * Copyright (C) 2012 Spreadtrum Communications Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#define DOLPHIN_KERNEL
+
+#ifdef DOLPHIN_UBOOT
+#include <common.h>
+#include <malloc.h>
+#include <asm/io.h>
+#include <asm/errno.h>
+#include <config.h>
+
+#include <asm/arch/sci_types.h>
+#include <asm/arch/pinmap.h>
+#include <asm/arch/bits.h>
+
+#include <nand.h>
+#include <linux/mtd/nand.h>
+
+#include <asm/arch-sc8830/sprd_nfc_reg_v2.h>
+//#include <asm/arch/sc8810_reg_base.h>
+#include <asm/arch/regs_ana.h>
+#include <asm/arch/analog_reg_v3.h>
+//#include <asm/arch/sc8810_reg_ahb.h>
+//#include <asm/arch/sc8810_reg_global.h>
+#include <asm/arch/gpio_drvapi.h>
+#include <asm/arch/regs_global.h>
+//#include <asm/arch/regs_cpc.h>
+//#include <asm/arch/pin_reg_v3.h>
+
+#ifdef CONFIG_NAND_SPL
+#define udelay(x) \
+ do { \
+ volatile int i; \
+ int cnt = 200 * (x); \
+ for (i=0; i<cnt; i++);\
+ } while(0);
+#endif
+
+#define mdelay(_ms) udelay((_ms)*1000)
+
+#define NAND_DBG
+
+#if defined(CONFIG_NAND_SPL) || !defined(NAND_DBG)
+#define DPRINT(arg...) do{}while(0)
+#else
+#define DPRINT printf
+#endif
+#define ASSERT(cond) { assert(cond); }
+
+
+#define NFC_MC_ICMD_ID (0xCD)
+#define NFC_MC_ADDR_ID (0x0A)
+#define NFC_MC_WRB0_ID (0xB0)
+#define NFC_MC_WRB1_ID (0xB1)
+#define NFC_MC_MRDT_ID (0xD0)
+#define NFC_MC_MWDT_ID (0xD1)
+#define NFC_MC_SRDT_ID (0xD2)
+#define NFC_MC_SWDT_ID (0xD3)
+#define NFC_MC_GETD_ID (0xDD)
+#define NFC_MC_SETD_ID (0xDE)
+#define NFC_MC_CSEN_ID (0xCE)
+#define NFC_MC_NOP_ID (0xF0)
+#define NFC_MC_DONE_ID (0xFF)
+#define NFC_MAX_CHIP 1
+#define NFC_TIMEOUT_VAL 0x10000000
+
+#define NAND_MC_CMD(x) (uint16_t)(((x & 0xff) << 8) | NFC_MC_ICMD_ID)
+#define NAND_MC_ADDR(x) (uint16_t)(((x & 0xff) << 8) | (NFC_MC_ADDR_ID << 4))
+#define NAND_MC_WRB0(x) (uint16_t)(NFC_MC_WRB0_ID)
+#define NAND_MC_MRDT (uint16_t)(NFC_MC_MRDT_ID)
+#define NAND_MC_MWDT (uint16_t)(NFC_MC_MWDT_ID)
+#define NAND_MC_SRDT (uint16_t)(NFC_MC_SRDT_ID)
+#define NAND_MC_SWDT (uint16_t)(NFC_MC_SWDT_ID)
+#define NAND_MC_GETD(x) (uint16_t)((NFC_MC_GETD_ID) | ((x -1) << 8))
+#define NAND_MC_NOP(x) (uint16_t)(((x & 0xff) << 8) | NFC_MC_NOP_ID)
+
+
+#define NAND_MC_BUFFER_SIZE (24)
+
+static int mtderasesize = 0;
+static int mtdwritesize = 0;
+static int mtdoobsize = 0;
+
+#endif //DOLPHIN_UBOOT end
+
+
+#ifdef DOLPHIN_KERNEL
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/dma-mapping.h>
+#include <linux/platform_device.h>
+#include <linux/delay.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/nand.h>
+#include <linux/mtd/partitions.h>
+#include <linux/io.h>
+#include <linux/irq.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <mach/sci.h>
+#include <mach/sci_glb_regs.h>
+#include <mach/pinmap.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include "sc8830_nand.h"
+#include <linux/regulator/consumer.h>
+#define DPRINT printk
+
+#endif //DOLPHIN_KERNEL
+
+
+
+#define SPRD_ASSERT(cond) { if (!(cond)) while(1); }
+#define STATIC_FUNC static
+
+#include "sprd_nand_param.h"
+
+/* 2 bit correct, sc8810 support 1, 2, 4, 8, 12,14, 24 */
+#define CONFIG_SYS_NAND_ECC_MODE (2)
+//#define CONFIG_SYS_NAND_ECC_MODE 8
+/* Number of ECC bytes per OOB - S3C6400 calculates 4 bytes ECC in 1-bit mode */
+#define CONFIG_SYS_NAND_ECCBYTES (4)
+//#define CONFIG_SYS_NAND_ECCBYTES 14
+
+#define NAND_MC_BUFFER_SIZE (24)
+#define CONFIG_SYS_NAND_ECCSIZE (512)
+#define CONFIG_SYS_NAND_5_ADDR_CYCLE 5
+#if CONFIG_ARCH_SCX30G
+#define BIT_NAND_ENABLE (BIT_NANDC_EB|BIT_NANDC_2X_EB|BIT_NANDC_ECC_EB)
+#define BIT_NAND_RESET (BIT_NANDC_SOFT_RST)
+#define NAND_CLK_CONFG sci_glb_set(REG_AP_AHB_NANC_CLK_CFG,\
+ BITS_CLK_NANDC2X_SEL(3))
+#define SPRD_NAND_CLOCK (192)
+#else
+#define BIT_NAND_ENABLE (BIT_NFC_EB)
+#define BIT_NAND_RESET (BIT_NFC_SOFT_RST)
+#define NAND_CLK_CONFG sci_glb_set(REG_AP_CLK_NFC_CFG, BIT(1))
+#define SPRD_NAND_CLOCK (153)
+#endif
+#define IRQ_TIMEOUT 100//unit:ms,IRQ timeout value
+#define DRIVER_NAME "sc8830_nand"
+
+
+enum NAND_ERR_CORRECT_S {
+ NAND_FATAL_ERROR=0,
+ NAND_ERR_NEED_RETRY,
+ NAND_ERR_FIXED,
+ NAND_NO_ERROR
+};
+
+enum NAND_HANDLE_STATUS_S {
+ NAND_HANDLE_DONE=0,
+ NAND_HANDLE_TIMEOUT,
+ NAND_HANDLE_ERR
+};
+
+static enum NAND_HANDLE_STATUS_S handle_status = NAND_HANDLE_DONE;
+static enum NAND_ERR_CORRECT_S ret_irq_en = NAND_NO_ERROR;
+
+STATIC_FUNC void nfc_enable_interrupt(void);
+STATIC_FUNC void nfc_disable_interrupt(void);
+STATIC_FUNC void nfc_clear_interrupt(void);
+
+
+//#define NAND_IRQ_EN
+#ifdef NAND_IRQ_EN
+#include <linux/completion.h>
+#include <mach/irqs.h>
+
+static struct completion nfc_op_completion;
+STATIC_FUNC void nfc_wait_op_done(void);
+#endif
+
+
+struct sprd_dolphin_nand_info {
+ struct mtd_info *mtd;
+ struct nand_chip *nand;
+
+ #ifdef DOLPHIN_UBOOT
+ struct device *pdev;
+ #endif
+
+ #ifdef DOLPHIN_KERNEL
+ struct platform_device *pdev;
+ #endif
+
+ struct sprd_nand_param *param;
+ uint32_t chip; //chip index
+ uint32_t v_mbuf; //virtual main buffer address
+ uint32_t p_mbuf; //phy main buffer address
+ uint32_t v_oob; // virtual oob buffer address
+ uint32_t p_oob; //phy oob buffer address
+ uint32_t page; //page address
+ uint16_t column; //column address
+ uint16_t oob_size;
+ uint16_t m_size; //main part size per sector
+ uint16_t s_size; //oob size per sector
+ uint8_t a_cycles;//address cycles, 3, 4, 5
+ uint8_t sct_pg; //sector per page
+ uint8_t info_pos;
+ uint8_t info_size;
+ uint8_t ecc_mode;//0-1bit, 1-2bit, 2-4bit, 3-8bit,4-12bit,5-16bit,6-24bit
+ uint8_t ecc_pos; // ecc postion
+ uint8_t wp_en; //write protect enable
+ uint16_t write_size;
+ uint16_t page_per_bl;//page per block
+ uint16_t buf_head;
+ uint16_t _buf_tail;
+ uint8_t ins_num;//instruction number
+ uint32_t ins[NAND_MC_BUFFER_SIZE >> 1];
+};
+
+
+#define mtd_to_dolphin(m) (&g_dolphin)
+
+//gloable variable
+static struct nand_ecclayout sprd_dolphin_nand_oob_default = {
+ .eccbytes = 0,
+ .eccpos = {0},
+ .oobfree = {
+ {.offset = 2,
+ .length = 46}}
+};
+struct sprd_dolphin_nand_info g_dolphin = {0};
+//save the data read by read_byte and read_word api interface functon
+static __attribute__((aligned(4))) uint8_t s_oob_data[NAND_MAX_OOBSIZE];
+//static __attribute__((aligned(4))) uint8_t s_oob_data[8];
+//static __attribute__((aligned(4))) uint8_t s_id_status[8];
+
+STATIC_FUNC int sprd_dolphin_nand_read_id(struct sprd_dolphin_nand_info *dolphin, uint32_t *buf);
+STATIC_FUNC int sprd_dolphin_nand_reset(struct sprd_dolphin_nand_info *dolphin);
+STATIC_FUNC int sprd_dolphin_nand_wait_finish(struct sprd_dolphin_nand_info *dolphin);
+
+STATIC_FUNC uint32_t sprd_dolphin_reg_read(uint32_t addr)
+{
+ return readl(addr);
+}
+STATIC_FUNC void sprd_dolphin_reg_write(uint32_t addr, uint32_t val)
+{
+ writel(val, addr);
+}
+STATIC_FUNC void sprd_dolphin_reg_or(uint32_t addr, uint32_t val)
+{
+ sprd_dolphin_reg_write(addr, sprd_dolphin_reg_read(addr) | val);
+}
+STATIC_FUNC void sprd_dolphin_reg_and(uint32_t addr, uint32_t mask)
+{
+ sprd_dolphin_reg_write(addr, sprd_dolphin_reg_read(addr) & mask);
+}
+STATIC_FUNC void sprd_dolphin_nand_int_clr(uint32_t bit_clear)
+{
+ sprd_dolphin_reg_write(NFC_INT_REG, bit_clear);
+}
+
+STATIC_FUNC void nfc_clear_interrupt(void)
+{
+ uint32_t value = 0;
+
+ value = ( INT_STSMCH_CLR | INT_WP_CLR | INT_TO_CLR | INT_DONE_CLR);
+ sprd_dolphin_reg_or(NFC_INT_REG, value); /* clear all interrupt status */
+
+ //value = NFC_CMD_CLR;
+ //sprd_dolphin_reg_or(NFC_START_REG, value); /* clear all interrupt status */
+}
+
+STATIC_FUNC void nfc_enable_interrupt(void)
+{
+ uint32_t value = 0;
+
+ value = (INT_TO_EN | INT_DONE_EN);
+ sprd_dolphin_reg_or(NFC_INT_REG, value); /* clear all interrupt status */
+}
+
+STATIC_FUNC void nfc_disable_interrupt(void)
+{
+ uint32_t value = 0;
+
+ value = ~(INT_TO_EN | INT_DONE_EN);
+ sprd_dolphin_reg_and(NFC_INT_REG, value); /* clear all interrupt status */
+}
+
+unsigned int ecc_mode_convert(uint32_t mode)
+{
+ uint32_t mode_m;
+ switch(mode)
+ {
+ case 1:
+ mode_m = 0;
+ break;
+ case 2:
+ mode_m = 1;
+ break;
+ case 4:
+ mode_m = 2;
+ break;
+ case 8:
+ mode_m = 3;
+ break;
+ case 12:
+ mode_m = 4;
+ break;
+ case 16:
+ mode_m = 5;
+ break;
+ case 24:
+ mode_m = 6;
+ break;
+ case 40:
+ mode_m = 7;
+ break;
+ case 60:
+ mode_m = 8;
+ break;
+ default:
+ mode_m = 0;
+ break;
+ }
+ return mode_m;
+}
+
+STATIC_FUNC void dolphin_set_timing_config(struct sprd_nand_timing *timing , uint32_t nfc_clk_MHz) {
+ u32 reg_val, temp_val;
+
+ reg_val = 0;
+
+ /* fixed acs value : 3 clocks */
+ reg_val |= ((2 & 0x1F) << NFC_ACS_OFFSET);
+
+ /* get ace value + 6ns read delay time, and rwl added */
+ temp_val = (timing->ace_ns + 6) * nfc_clk_MHz / 1000;
+ if ((((timing->ace_ns + 6) * nfc_clk_MHz) % 1000) != 0) {
+ temp_val++;
+ }
+ reg_val |= ((temp_val & 0x1F) << NFC_ACE_OFFSET);
+
+ /* get rws value : 20 ns */
+ temp_val = 20 * nfc_clk_MHz / 1000;
+ if (((20 * nfc_clk_MHz) % 1000) != 0) {
+ temp_val++;
+ }
+ reg_val |= ((temp_val & 0x3F) << NFC_RWS_OFFSET);
+
+ /* fixed rwe value : 3 clocks */
+ reg_val |= ((2 & 0x1F) << NFC_RWE_OFFSET);
+
+ /* get rwh value */
+ temp_val = (timing->rwh_ns + 6) * nfc_clk_MHz / 1000;
+ if ((((timing->rwh_ns + 6) * nfc_clk_MHz) % 1000) != 0) {
+ temp_val++;
+ }
+ reg_val |= ((temp_val & 0x1F) << NFC_RWH_OFFSET);
+
+ /* get rwl value, 6 is read delay time*/
+ temp_val = (timing->rwl_ns + 6) * nfc_clk_MHz / 1000;
+ if (((timing->ace_ns * nfc_clk_MHz) % 1000) != 0) {
+ temp_val++;
+ }
+ reg_val |= ((temp_val & 0x3F) << NFC_RWL_OFFSET);
+
+ DPRINT("%s nand timing val: 0x%x\n\r", __func__, reg_val);
+
+ sprd_dolphin_reg_write(NFC_TIMING_REG, reg_val);
+
+}
+
+#ifdef CONFIG_NAND_SPL
+struct sprd_dolphin_boot_header_info {
+ uint32_t check_sum;
+ uint32_t sct_size; //
+ uint32_t acycle; // 3, 4, 5
+ uint32_t bus_width; //0 ,1
+ uint32_t spare_size; //spare part sise for one sector
+ uint32_t ecc_mode; //0--1bit, 1--2bit,2--4bit,3--8bit,4--12bit, 5--16bit, 6--24bit
+ uint32_t ecc_pos; // ecc postion at spare part
+ uint32_t sct_per_page; //sector per page
+ uint32_t info_pos;
+ uint32_t info_size;
+ uint32_t magic_num; //0xaa55a5a5
+ uint32_t ecc_value[27];
+};
+void boad_nand_param_init(struct sprd_dolphin_nand_info *dolphin, struct nand_chip *chip, uint8 *id)
+{
+ int extid;
+ uint32_t writesize;
+ uint32_t oobsize;
+ uint32_t erasesize;
+ uint32_t busw;
+
+ /* The 4th id byte is the important one */
+ extid = id[3];
+ writesize = 1024 << (extid & 0x3);
+ extid >>= 2;
+ /* Calc oobsize */
+ oobsize = (8 << (extid & 0x01)) * (writesize >> 9);
+ extid >>= 2;
+ /* Calc blocksize. Blocksize is multiples of 64KiB */
+ erasesize = (64 * 1024) << (extid & 0x03);
+ extid >>= 2;
+ /* Get buswidth information */
+ busw = (extid & 0x01) ? NAND_BUSWIDTH_16 : 0;
+ dolphin->write_size = writesize;
+ dolphin->m_size =CONFIG_SYS_NAND_ECCSIZE;
+ dolphin->sct_pg = writesize / CONFIG_SYS_NAND_ECCSIZE;
+ dolphin->s_size = oobsize / dolphin->sct_pg;
+ dolphin->ecc_mode = ecc_mode_convert(CONFIG_SYS_NAND_ECC_MODE);
+ dolphin->ecc_pos = dolphin->s_size - ((14 * CONFIG_SYS_NAND_ECC_MODE + 7) / 8);
+ dolphin->info_pos = dolphin->ecc_pos - 1;
+ dolphin->info_size = 1;
+ dolphin->page_per_bl = erasesize / dolphin->write_size;
+ dolphin->a_cycles = CONFIG_SYS_NAND_5_ADDR_CYCLE;
+ if(NAND_BUSWIDTH_16 == busw)
+ {
+ chip->options |= NAND_BUSWIDTH_16;
+ }
+ else
+ {
+ chip->options &= ~NAND_BUSWIDTH_16;
+ }
+}
+
+/*
+ * because the dolphin firmware use the nand identify process
+ * and the data at the header of nand_spl is the nand param used at nand read and write,
+ * so in nand_spl, don't need read the id or use the onfi spec to calculate the nand param,
+ * just use the param at the nand_spl header instead of
+ */
+void nand_hardware_config(struct mtd_info *mtd, struct nand_chip *chip)
+{
+ struct sprd_dolphin_nand_info *dolphin = mtd_to_dolphin(mtd);
+ struct sprd_nand_param* param;
+ struct sprd_nand_oob* oob;
+ struct sprd_nand_timing* timing;
+
+ uint8 *id;
+ sprd_dolphin_nand_reset(dolphin);
+ mdelay(1);
+ sprd_dolphin_nand_read_id(dolphin, (uint32_t *)s_oob_data);
+ boad_nand_param_init(dolphin, dolphin->nand, s_oob_data);
+ id = s_oob_data;
+
+ param = SprdGetNandParam(id);
+
+ if (param != NULL) {
+ dolphin->param = param;
+ oob = &param->sOOB;
+ timing = &param->sTiming;
+
+ dolphin_set_timing_config(timing, SPRD_NAND_CLOCK);
+
+ //save the param config
+ dolphin->write_size = param->nPageSize;
+ dolphin->page_per_bl = param->nBlkSize / param->nPageSize;
+ dolphin->m_size = param->nSecSize;
+ dolphin->sct_pg = (param->nPageSize / param->nSecSize);
+ dolphin->oob_size = param->nSpareSize;
+ dolphin->a_cycles = param->nCycles;
+
+ dolphin->s_size = oob->nOOBSize;
+ dolphin->info_pos = oob->nInfoPos;
+ dolphin->info_size = oob->nInfoSize;
+ dolphin->ecc_pos = oob->nEccPos;
+ dolphin->ecc_mode = ecc_mode_convert(oob->nEccBits);
+ dolphin->nand=chip;
+ dolphin->mtd = mtd;
+
+ chip->ecc.bytes = (oob->nEccBits * 14 + 7) / 8;
+#ifdef DOLPHIN_UBOOT
+ chip->eccbitmode = oob->nEccBits;
+#endif
+ if(param->nBusWidth)
+ {
+ chip->options |= NAND_BUSWIDTH_16;
+ }
+ else
+ {
+ chip->options &= ~NAND_BUSWIDTH_16;
+ }
+ }
+ mtd->writesize = dolphin->write_size;
+ mtd->oobsize = dolphin->s_size * dolphin->sct_pg;
+ mtd->erasesize = dolphin->page_per_bl * dolphin->write_size;
+}
+
+#else
+
+STATIC_FUNC void sprd_dolphin_nand_ecc_layout_gen(struct sprd_nand_oob *oob, uint8_t sector_num, struct nand_ecclayout *layout)
+{
+ uint8_t sct = 0;
+ uint32_t i = 0;
+ uint32_t offset;
+ uint32_t used_len ; //one sector ecc data size(byte)
+ uint32_t eccbytes = 0; //one page ecc data size(byte)
+ uint32_t oobfree_len = 0;
+
+ used_len = (14 * oob->nEccBits + 7) / 8 + oob->nInfoSize;
+ if(sector_num > ARRAY_SIZE(layout->oobfree))
+ {
+ while(1);
+ }
+ for(sct = 0; sct < sector_num; sct++)
+ {
+ //offset = (oob_size * sct) + ecc_pos;
+ //for(i = 0; i < ecc_len; i++)
+ offset = (oob->nOOBSize * sct) + oob->nEccPos;
+ for(i = 0; i < used_len; i++)
+ {
+ layout->eccpos[eccbytes++] = offset + i;
+ }
+
+ layout->oobfree[sct].offset = oob->nOOBSize * sct + oob->nInfoPos;
+ layout->oobfree[sct].length = oob->nInfoSize;
+ oobfree_len += oob->nInfoSize;
+ }
+
+ layout->oobavail = oobfree_len;
+ layout->eccbytes = used_len * sector_num;
+}
+
+void nand_hardware_config(struct mtd_info *mtd, struct nand_chip *chip, uint8_t id[5])
+{
+ struct sprd_dolphin_nand_info *dolphin = mtd_to_dolphin(mtd);
+ struct sprd_nand_param* param;
+ struct sprd_nand_oob* oob;
+ struct sprd_nand_timing* timing;
+
+ param = SprdGetNandParam(id);
+
+ if (param != NULL) {
+ dolphin->param = param;
+ oob = &param->sOOB;
+ timing = &param->sTiming;
+
+ dolphin_set_timing_config(timing, SPRD_NAND_CLOCK);
+
+ //save the param config
+ dolphin->write_size = param->nPageSize;
+ dolphin->page_per_bl = param->nBlkSize / param->nPageSize;
+ dolphin->m_size = param->nSecSize;
+ dolphin->sct_pg = (param->nPageSize / param->nSecSize);
+ dolphin->oob_size = param->nSpareSize;
+ dolphin->a_cycles = param->nCycles;
+
+ dolphin->s_size = oob->nOOBSize;
+ dolphin->info_pos = oob->nInfoPos;
+ dolphin->info_size = oob->nInfoSize;
+ dolphin->ecc_pos = oob->nEccPos;
+ dolphin->ecc_mode = ecc_mode_convert(oob->nEccBits);
+ dolphin->nand=chip;
+ dolphin->mtd = mtd;
+
+#ifdef DOLPHIN_KERNEL
+ chip->ecc.strength = oob->nEccBits;
+#endif
+ chip->ecc.bytes = (oob->nEccBits * 14 + 7) / 8;
+#ifdef DOLPHIN_UBOOT
+ chip->eccbitmode = oob->nEccBits;
+#endif
+ if(param->nBusWidth)
+ {
+ chip->options |= NAND_BUSWIDTH_16;
+ }
+ else
+ {
+ chip->options &= ~NAND_BUSWIDTH_16;
+ }
+
+ /* Calculate the address shift from the page size */
+ chip->page_shift = ffs(mtd->writesize) - 1;
+ /* Convert chipsize to number of pages per chip -1. */
+ chip->pagemask = (chip->chipsize >> chip->page_shift) - 1;
+ sprd_dolphin_nand_ecc_layout_gen(oob, dolphin->sct_pg, &sprd_dolphin_nand_oob_default);
+ chip->ecc.layout = &sprd_dolphin_nand_oob_default;
+
+ mtd->writesize = dolphin->write_size;
+ mtd->oobsize = dolphin->oob_size;
+ mtd->erasesize = dolphin->page_per_bl * dolphin->write_size;
+ /*bitflip_threshold be half of the ecc strength may be suitable*/
+ mtd->bitflip_threshold = (oob->nEccBits + 1) >> 1;
+
+ }
+ else {
+ int steps;
+ struct sprd_nand_oob oob_tmp;
+
+ //save the param config
+ steps = mtd->writesize / CONFIG_SYS_NAND_ECCSIZE;
+ dolphin->ecc_mode = ecc_mode_convert(CONFIG_SYS_NAND_ECC_MODE);
+ dolphin->m_size = CONFIG_SYS_NAND_ECCSIZE;
+ dolphin->s_size = mtd->oobsize / steps;
+ dolphin->a_cycles = mtd->writesize / CONFIG_SYS_NAND_ECCSIZE;
+ dolphin->sct_pg = steps;
+ dolphin->info_pos = dolphin->s_size - CONFIG_SYS_NAND_ECCBYTES - 1;
+ dolphin->info_size = 1;
+ dolphin->write_size = mtd->writesize;
+ dolphin->page_per_bl = mtd->erasesize / mtd->writesize;
+ dolphin->oob_size = mtd->oobsize;
+ dolphin->ecc_pos = dolphin->s_size - CONFIG_SYS_NAND_ECCBYTES;
+ dolphin->mtd = mtd;
+
+ oob_tmp.nOOBSize = dolphin->s_size;
+ oob_tmp.nInfoPos = dolphin->info_pos;
+ oob_tmp.nInfoSize = dolphin->info_size;
+ oob_tmp.nEccPos = dolphin->ecc_pos;
+ oob_tmp.nEccBits = CONFIG_SYS_NAND_ECC_MODE;
+ sprd_dolphin_nand_ecc_layout_gen(&oob_tmp, dolphin->sct_pg, &sprd_dolphin_nand_oob_default);
+
+ chip->ecc.layout = &sprd_dolphin_nand_oob_default;
+#ifdef DOLPHIN_UBOOT
+ chip->eccbitmode = CONFIG_SYS_NAND_ECC_MODE;
+#endif
+ if(chip->chipsize > (128 << 20)) {
+ dolphin->a_cycles = 5;
+ }
+ else {
+ dolphin->a_cycles = 4;
+ }
+ }
+}
+
+#endif //end CONFIG_NAND_SPL
+
+
+
+#ifdef DOLPHIN_UBOOT
+#ifndef CONFIG_NAND_SPL
+typedef struct {
+ uint8_t *m_buf;
+ uint8_t *s_buf;
+ uint8_t m_sct;
+ uint8_t s_sct;
+ uint8_t dir; //if dir is 0, read dadta from NFC buffer, if 1, write data to NFC buffer
+ uint16_t m_size;
+ uint16_t s_size;
+} sprd_dolphin_nand_data_param;
+
+STATIC_FUNC unsigned int sprd_dolphin_data_trans(sprd_dolphin_nand_data_param *param)
+{
+ uint32_t cfg0 = 0;
+ uint32_t cfg1 = 0;
+ uint32_t cfg2 = 0;
+ cfg0 = NFC_ONLY_MST_MODE | MAIN_SPAR_APT | NFC_WPN;
+ if(param->dir)
+ {
+ cfg0 |= NFC_RW;
+ }
+ if(param->m_sct != 0)
+ {
+ cfg0 |= (param->m_sct - 1) << SECTOR_NUM_OFFSET;
+ cfg0 |= MAIN_USE;
+ cfg1 |= (param->m_size - 1);
+ sprd_dolphin_reg_write(NFC_MAIN_ADDR_REG, (uint32_t)param->m_buf);
+ }
+ if(param->s_sct != 0)
+ {
+ cfg0 |= SPAR_USE;
+ cfg1 |= (param->s_size - 1) << SPAR_SIZE_OFFSET;
+ cfg2 |= (param->s_sct - 1) << SPAR_SECTOR_NUM_OFFSET;
+ sprd_dolphin_reg_write(NFC_SPAR_ADDR_REG, (uint32_t)param->s_buf);
+ }
+ sprd_dolphin_reg_write(NFC_CFG0_REG, cfg0);
+ sprd_dolphin_reg_write(NFC_CFG1_REG, cfg1);
+ sprd_dolphin_reg_write(NFC_CFG2_REG, cfg2);
+ sprd_dolphin_nand_int_clr(INT_STSMCH_CLR | INT_WP_CLR | INT_TO_CLR | INT_DONE_CLR);//clear all interrupt
+ sprd_dolphin_reg_write(NFC_START_REG, NFC_START);
+ sprd_dolphin_nand_wait_finish(&g_dolphin);
+ return 0;
+}
+void sprd_ecc_ctrl(struct sprd_ecc_param *param, uint32_t dir)
+{
+ uint32_t cfg0 = 0;
+ uint32_t cfg1 = 0;
+ uint32_t cfg2 = 0;
+ cfg0 = NFC_ONLY_ECC_MODE | MAIN_SPAR_APT;
+ if(dir)
+ {
+ cfg0 |= NFC_RW;
+ }
+ cfg1 |=(param->sinfo_size - 1) << SPAR_INFO_SIZE_OFFSET;
+ cfg1 |=(param->sp_size - 1) << SPAR_SIZE_OFFSET;
+ cfg1 |= (param->m_size - 1);
+
+ cfg2 |= (param->sinfo_pos)<< SPAR_INFO_POS_OFFSET;
+ cfg2 |= ecc_mode_convert(param->mode) << ECC_MODE_OFFSET;
+ cfg2 |= param->ecc_pos;
+ sprd_dolphin_reg_write(NFC_CFG0_REG, cfg0);
+ sprd_dolphin_reg_write(NFC_CFG1_REG, cfg1);
+ sprd_dolphin_reg_write(NFC_CFG2_REG, cfg2);
+ sprd_dolphin_nand_int_clr(INT_STSMCH_CLR | INT_WP_CLR | INT_TO_CLR | INT_DONE_CLR);//clear all interrupt
+ sprd_dolphin_reg_write(NFC_START_REG, NFC_START);
+ sprd_dolphin_nand_wait_finish(&g_dolphin);
+}
+
+unsigned int sprd_ecc_encode(struct sprd_ecc_param *param)
+{
+ struct sprd_dolphin_nand_info *dolphin;
+ sprd_dolphin_nand_data_param d_param;
+
+ dolphin = &g_dolphin;
+ memset(&d_param, 0, sizeof(d_param));
+
+ d_param.m_buf = param->p_mbuf;
+ d_param.s_buf = param->p_sbuf;
+ d_param.m_sct = param->ecc_num;
+ d_param.s_sct = param->ecc_num;
+ d_param.dir = 1;
+ d_param.m_size = param->m_size;
+ d_param.s_size = param->sp_size;
+
+ Dcache_CleanRegion((unsigned int)d_param.m_buf, d_param.m_sct*d_param.m_size);
+ Dcache_CleanRegion((unsigned int)d_param.s_buf, d_param.s_sct*d_param.s_size);
+
+ sprd_dolphin_data_trans(&d_param);
+ sprd_ecc_ctrl(param, 1);
+ d_param.dir = 0;
+ d_param.m_sct = 0;
+
+ Dcache_InvalRegion((unsigned int)d_param.m_buf , d_param.m_sct*d_param.m_size);
+ Dcache_InvalRegion((unsigned int)d_param.s_buf , d_param.s_sct*d_param.s_size);
+
+ sprd_dolphin_data_trans(&d_param); //read the ecc value from nfc buffer
+ return 0;
+}
+#endif //CONFIG_NAND_SPL end
+#endif //DOLPHIN_UBOOT END
+
+
+
+//add one macro instruction to nand controller
+STATIC_FUNC void sprd_dolphin_nand_ins_init(struct sprd_dolphin_nand_info *dolphin)
+{
+ dolphin->ins_num = 0;
+}
+STATIC_FUNC void sprd_dolphin_nand_ins_add(uint16_t ins, struct sprd_dolphin_nand_info *dolphin)
+{
+ uint16_t *buf = (uint16_t *)dolphin->ins;
+ if(dolphin->ins_num >= NAND_MC_BUFFER_SIZE)
+ {
+ while(1);
+ }
+ *(buf + dolphin->ins_num) = ins;
+ dolphin->ins_num++;
+}
+
+STATIC_FUNC void sprd_dolphin_nand_ins_exec(struct sprd_dolphin_nand_info *dolphin)
+{
+ uint32_t i;
+ uint32_t cfg0;
+
+ for(i = 0; i < ((dolphin->ins_num + 1) >> 1); i++)
+ {
+ sprd_dolphin_reg_write(NFC_INST0_REG + (i << 2), dolphin->ins[i]);
+ }
+ cfg0 = sprd_dolphin_reg_read(NFC_CFG0_REG);
+ if(dolphin->wp_en)
+ {
+ cfg0 &= ~NFC_WPN;
+ }
+ else
+ {
+ cfg0 |= NFC_WPN;
+ }
+ cfg0 |= ((dolphin->chip << CS_SEL_OFFSET) & CS_SEL_MASK);
+
+ sprd_dolphin_nand_int_clr(INT_STSMCH_CLR | INT_WP_CLR | INT_TO_CLR | INT_DONE_CLR);//clear all interrupt
+ sprd_dolphin_reg_write(NFC_CFG0_REG, cfg0);
+ sprd_dolphin_reg_write(NFC_START_REG, NFC_START);
+}
+
+STATIC_FUNC int sprd_dolphin_nand_wait_finish(struct sprd_dolphin_nand_info *dolphin)
+{
+ unsigned int value;
+ unsigned int time = jiffies_to_usecs(jiffies);
+ unsigned int elapsed = 0;
+
+ do {
+ value = sprd_dolphin_reg_read(NFC_INT_REG);
+ if (value & INT_DONE_RAW) {
+ break;
+ }
+ elapsed = jiffies_to_usecs(jiffies) - time;
+ } while (elapsed < NFC_TIMEOUT_VAL /*time out */ );
+
+ sprd_dolphin_reg_write(NFC_INT_REG, 0xf00); //clear all interrupt status
+
+ if (elapsed >= NFC_TIMEOUT_VAL) {
+ printk(KERN_ERR
+ "sprd_dolphin_nand_wait_finish timeout %d usecs. Dump NandC Registers: \n",
+ elapsed);
+ print_hex_dump(KERN_ERR, "", DUMP_PREFIX_OFFSET, 32, 4,
+ SPRD_NFC_BASE, 0x140, 1);
+ dump_stack();
+ return -1;
+ }
+ return 0;
+}
+
+STATIC_FUNC void sprd_dolphin_nand_wp_en(struct sprd_dolphin_nand_info *dolphin, int en)
+{
+ if(en)
+ {
+ dolphin->wp_en = 1;
+ }
+ else
+ {
+ dolphin->wp_en = 0;
+ }
+}
+STATIC_FUNC void sprd_dolphin_select_chip(struct mtd_info *mtd, int chip)
+{
+ struct sprd_dolphin_nand_info *dolphin = mtd_to_dolphin(mtd);
+ if(chip < 0) { //for release caller
+ sci_glb_clr(REG_AP_AHB_AHB_EB, BIT_NAND_ENABLE);
+ return;
+ }
+ //DPRINT("sprd_dolphin_select_chip, %x\r\n", chip);
+ sci_glb_set(REG_AP_AHB_AHB_EB, BIT_NAND_ENABLE);
+ dolphin->chip = chip;
+#ifdef CONFIG_NAND_SPL
+ nand_hardware_config(mtd,dolphin->nand);
+#endif
+}
+
+STATIC_FUNC void sprd_dolphin_nand_read_status(struct sprd_dolphin_nand_info *dolphin)
+{
+ uint32_t *buf;
+ //DPRINT("%s enter\n", __func__);
+
+ sprd_dolphin_nand_ins_init(dolphin);
+ sprd_dolphin_nand_ins_add(NAND_MC_CMD(NAND_CMD_STATUS), dolphin);
+ sprd_dolphin_nand_ins_add(NAND_MC_NOP(10), dolphin);
+ sprd_dolphin_nand_ins_add(NAND_MC_GETD(1), dolphin);
+ sprd_dolphin_nand_ins_add(NFC_MC_DONE_ID, dolphin);
+ sprd_dolphin_reg_write(NFC_CFG0_REG, NFC_ONLY_NAND_MODE);
+ sprd_dolphin_nand_ins_exec(dolphin);
+ sprd_dolphin_nand_wait_finish(dolphin);
+ buf = (uint32_t *)s_oob_data;
+ *buf = sprd_dolphin_reg_read(NFC_STATUS0_REG);
+ dolphin->buf_head = 0;
+ dolphin->_buf_tail = 1;
+
+ //DPRINT("%s leave\n", __func__);
+}
+STATIC_FUNC int sprd_dolphin_nand_read_id(struct sprd_dolphin_nand_info *dolphin, uint32_t *buf)
+{
+ //DPRINT("%s enter\n", __func__);
+
+ sprd_dolphin_nand_ins_init(dolphin);
+ sprd_dolphin_nand_ins_add(NAND_MC_CMD(NAND_CMD_READID), dolphin);
+ sprd_dolphin_nand_ins_add(NAND_MC_ADDR(0), dolphin);
+ sprd_dolphin_nand_ins_add(NAND_MC_NOP(10), dolphin);
+ sprd_dolphin_nand_ins_add(NAND_MC_GETD(8), dolphin);
+ sprd_dolphin_nand_ins_add(NFC_MC_DONE_ID, dolphin);
+
+ sprd_dolphin_reg_write(NFC_CFG0_REG, NFC_ONLY_NAND_MODE);
+ sprd_dolphin_nand_ins_exec(dolphin);
+ if (sprd_dolphin_nand_wait_finish(dolphin) != 0)
+ {
+ return -1;
+ }
+ *buf = sprd_dolphin_reg_read(NFC_STATUS0_REG);
+ *(buf + 1) = sprd_dolphin_reg_read(NFC_STATUS1_REG);
+ dolphin->buf_head = 0;
+ dolphin->_buf_tail = 8;
+
+ //DPRINT("%s leave\n", __func__);
+
+ return 0;
+}
+STATIC_FUNC int sprd_dolphin_nand_reset(struct sprd_dolphin_nand_info *dolphin)
+{
+ //DPRINT("%s enter\n", __func__);
+
+ sprd_dolphin_nand_ins_init(dolphin);
+ sprd_dolphin_nand_ins_add(NAND_MC_CMD(NAND_CMD_RESET), dolphin);
+ sprd_dolphin_nand_ins_add(NFC_MC_WRB0_ID, dolphin); //wait rb
+ sprd_dolphin_nand_ins_add(NFC_MC_DONE_ID, dolphin);
+ //config register
+ sprd_dolphin_reg_write(NFC_CFG0_REG, NFC_ONLY_NAND_MODE);
+ sprd_dolphin_nand_ins_exec(dolphin);
+ if (sprd_dolphin_nand_wait_finish(dolphin) != 0)
+ {
+ return 0;
+ }
+
+ //DPRINT("%s leave\n", __func__);
+
+ return 0;
+}
+STATIC_FUNC u32 sprd_dolphin_get_decode_sts(u32 index)
+{
+ uint32_t err;
+ uint32_t shift;
+ uint32_t reg_addr;
+ reg_addr = NFC_STATUS0_REG + (index & 0xfffffffc);
+ shift = (index & 0x3) << 3;
+ err = sprd_dolphin_reg_read(reg_addr);
+ err >>= shift;
+
+ err &= ERR_ERR_NUM0_MASK;
+
+ return err;
+}
+
+
+#ifdef DOLPHIN_UBOOT
+//read large page
+STATIC_FUNC int sprd_dolphin_nand_read_lp(struct mtd_info *mtd,uint8_t *mbuf, uint8_t *sbuf,uint32_t raw)
+{
+ struct sprd_dolphin_nand_info *dolphin = mtd_to_dolphin(mtd);
+ struct nand_chip *chip = dolphin->nand;
+ uint32_t column;
+ uint32_t page_addr;
+ uint32_t cfg0;
+ uint32_t cfg1;
+ uint32_t cfg2;
+ uint32_t i;
+ uint32_t err;
+ int size = 0 ,sct_size;
+ int ret = 0;
+ uint8_t ecc_bit=0 ;
+ int num =0 ;
+ page_addr = dolphin->page;
+
+ if(sbuf) {
+ column = mtd->writesize;
+ }
+ else
+ {
+ column = 0;
+ }
+ if(chip->options & NAND_BUSWIDTH_16)
+ {
+ column >>= 1;
+ }
+ //DPRINT("sprd_dolphin_nand_read_lp,page_addr = %x,column = %x\r\n",page_addr, column);
+ sprd_dolphin_nand_ins_init(dolphin);
+ sprd_dolphin_nand_ins_add(NAND_MC_CMD(NAND_CMD_READ0), dolphin);
+ sprd_dolphin_nand_ins_add(NAND_MC_ADDR(column & 0xff), dolphin);
+ column >>= 8;
+ sprd_dolphin_nand_ins_add(NAND_MC_ADDR(column & 0xff), dolphin);
+
+ sprd_dolphin_nand_ins_add(NAND_MC_ADDR(page_addr & 0xff), dolphin);
+ page_addr >>= 8;
+ sprd_dolphin_nand_ins_add(NAND_MC_ADDR(page_addr & 0xff), dolphin);
+
+ if (5 == dolphin->a_cycles)// five address cycles
+ {
+ page_addr >>= 8;
+ sprd_dolphin_nand_ins_add(NAND_MC_ADDR(page_addr & 0xff), dolphin);
+ }
+ sprd_dolphin_nand_ins_add(NAND_MC_CMD(NAND_CMD_READSTART), dolphin);
+
+ sprd_dolphin_nand_ins_add(NFC_MC_WRB0_ID, dolphin); //wait rb
+ if(mbuf && sbuf)
+ {
+ sprd_dolphin_nand_ins_add(NAND_MC_SRDT, dolphin);
+ //switch to main part
+ sprd_dolphin_nand_ins_add(NAND_MC_CMD(NAND_CMD_RNDOUT), dolphin);
+ sprd_dolphin_nand_ins_add(NAND_MC_ADDR(0), dolphin);
+ sprd_dolphin_nand_ins_add(NAND_MC_ADDR(0), dolphin);
+ sprd_dolphin_nand_ins_add(NAND_MC_CMD(NAND_CMD_RNDOUTSTART), dolphin);
+ sprd_dolphin_nand_ins_add(NAND_MC_MRDT, dolphin);
+ }
+ else
+ {
+ sprd_dolphin_nand_ins_add(NAND_MC_MRDT, dolphin);
+ }
+ sprd_dolphin_nand_ins_add(NFC_MC_DONE_ID, dolphin);
+ //config registers
+ cfg0 = NFC_AUTO_MODE | MAIN_SPAR_APT | ((dolphin->sct_pg - 1)<< SECTOR_NUM_OFFSET);
+ if((!raw) && mbuf && sbuf)
+ {
+ cfg0 |= ECC_EN | DETECT_ALL_FF;
+ }
+ if(chip->options & NAND_BUSWIDTH_16)
+ {
+ cfg0 |= BUS_WIDTH;
+ }
+ cfg1 = (dolphin->info_size) << SPAR_INFO_SIZE_OFFSET;
+ cfg2 = (dolphin->ecc_mode << ECC_MODE_OFFSET) | (dolphin->info_pos << SPAR_INFO_POS_OFFSET) | ((dolphin->sct_pg - 1) << SPAR_SECTOR_NUM_OFFSET) | dolphin->ecc_pos;
+
+#ifndef CONFIG_NAND_SPL
+ if (mbuf)
+ {
+ Dcache_CleanRegion((unsigned int)mbuf, dolphin->m_size*dolphin->sct_pg);
+ Dcache_InvalRegion((unsigned int)mbuf, dolphin->m_size*dolphin->sct_pg);
+ }
+
+ if (sbuf)
+ {
+ Dcache_CleanRegion((unsigned int)sbuf, dolphin->s_size*dolphin->sct_pg);
+ Dcache_InvalRegion((unsigned int)sbuf, dolphin->s_size*dolphin->sct_pg);
+ }
+#endif
+
+ if(mbuf && sbuf)
+ {
+ cfg1 |= (dolphin->m_size - 1) | ((dolphin->s_size - 1)<< SPAR_SIZE_OFFSET);
+ sprd_dolphin_reg_write(NFC_MAIN_ADDR_REG, (uint32_t)mbuf);
+ sprd_dolphin_reg_write(NFC_SPAR_ADDR_REG, (uint32_t)sbuf);
+ cfg0 |= MAIN_USE | SPAR_USE;
+ }
+ else
+ {
+ if(mbuf)
+ {
+ cfg1 |= (dolphin->m_size - 1);
+ sprd_dolphin_reg_write(NFC_MAIN_ADDR_REG, (uint32_t)mbuf);
+ }
+ if(sbuf)
+ {
+ cfg1 |= (dolphin->s_size - 1);
+ sprd_dolphin_reg_write(NFC_MAIN_ADDR_REG, (uint32_t)sbuf);
+ }
+ cfg0 |= MAIN_USE;
+ }
+ sprd_dolphin_reg_write(NFC_CFG0_REG, cfg0);
+ sprd_dolphin_reg_write(NFC_CFG1_REG, cfg1);
+ sprd_dolphin_reg_write(NFC_CFG2_REG, cfg2);
+
+ sprd_dolphin_nand_ins_exec(dolphin);
+ sprd_dolphin_nand_wait_finish(dolphin);
+ if(!raw) {
+ for(i = 0; i < dolphin->sct_pg; i++) {
+ err = sprd_dolphin_get_decode_sts(i);
+ if(err == ERR_ERR_NUM0_MASK) {
+ ret = 0;
+ ecc_bit = 0;
+ size = dolphin->s_size * (i+1);
+ sct_size = dolphin->s_size;
+ while(sct_size--){
+ if(sbuf[--size] != 0xFF){
+ DPRINT("%s spare area bif flip 0x%x\n",__func__, sbuf[size]);
+ for(num=0; num<8; num++){
+ if(!(sbuf[size]>>num & 0x1)){
+ ecc_bit++;
+ if(ecc_bit > chip->eccbitmode){
+ ret = -1;
+ DPRINT("%s spare area ecc check err\n",__func__);
+ break;
+ }
+ }
+ }
+ if(ret<0){
+ mtd->ecc_stats.failed++;
+ break;
+ }
+ sbuf[size]=0xff;
+ }
+ }
+ if(!ret){
+ size = dolphin->m_size*(i+1) ;
+ sct_size = dolphin->m_size ;
+ while(sct_size--){
+ if(mbuf[--size] != 0xFF){
+ DPRINT("%s main area bif flip 0x%x\n",__func__, mbuf[size]);
+ for(num = 0 ; num < 8 ; num++){
+ if(!(mbuf[size]>>num & 0x1) ){
+ ecc_bit++;
+ }
+ if(ecc_bit > chip->eccbitmode){
+ ret = -1;
+ DPRINT("%s main+spare area ecc check err\n",__func__);
+ break;
+ }
+ }
+ }
+ if(ret<0){
+ mtd->ecc_stats.failed++;
+ break;
+ }
+ mbuf[size] = 0xff;
+ }
+ }
+ }
+ else {
+ mtd->ecc_stats.corrected += err;
+ }
+ }
+ }
+
+ return 0;
+}
+
+
+STATIC_FUNC int sprd_dolphin_nand_write_lp(struct mtd_info *mtd,const uint8_t *mbuf, uint8_t *sbuf,uint32_t raw)
+{
+ struct sprd_dolphin_nand_info *dolphin = mtd_to_dolphin(mtd);
+ struct nand_chip *chip = dolphin->nand;
+ uint32_t column;
+ uint32_t page_addr;
+ uint32_t cfg0;
+ uint32_t cfg1;
+ uint32_t cfg2;
+ page_addr = dolphin->page;
+ if(mbuf) {
+ column = 0;
+ }
+ else {
+ column = mtd->writesize;
+ }
+ if(chip->options & NAND_BUSWIDTH_16)
+ {
+ column >>= 1;
+ }
+
+ sprd_dolphin_nand_ins_init(dolphin);
+ sprd_dolphin_nand_ins_add(NAND_MC_CMD(NAND_CMD_SEQIN), dolphin);
+ sprd_dolphin_nand_ins_add(NAND_MC_ADDR(column & 0xff), dolphin);
+ column >>= 8;
+ sprd_dolphin_nand_ins_add(NAND_MC_ADDR(column & 0xff), dolphin);
+ sprd_dolphin_nand_ins_add(NAND_MC_ADDR(page_addr & 0xff), dolphin);
+ page_addr >>= 8;
+ sprd_dolphin_nand_ins_add(NAND_MC_ADDR(page_addr & 0xff), dolphin);
+
+ if (5 == dolphin->a_cycles)// five address cycles
+ {
+ page_addr >>= 8;
+ sprd_dolphin_nand_ins_add(NAND_MC_ADDR(page_addr & 0xff), dolphin);
+ }
+
+ sprd_dolphin_nand_ins_add(NAND_MC_MWDT, dolphin);
+ if(mbuf && sbuf)
+ {
+ sprd_dolphin_nand_ins_add(NAND_MC_SWDT, dolphin);
+ }
+ sprd_dolphin_nand_ins_add(NAND_MC_CMD(NAND_CMD_PAGEPROG), dolphin);
+ sprd_dolphin_nand_ins_add(NFC_MC_WRB0_ID, dolphin); //wait rb
+
+ sprd_dolphin_nand_ins_add(NFC_MC_DONE_ID, dolphin);
+ //config registers
+ cfg0 = NFC_AUTO_MODE | NFC_RW | NFC_WPN | MAIN_SPAR_APT | ((dolphin->sct_pg - 1)<< SECTOR_NUM_OFFSET);
+ if((!raw) && mbuf && sbuf)
+ {
+ cfg0 |= ECC_EN;
+ }
+ if(chip->options & NAND_BUSWIDTH_16)
+ {
+ cfg0 |= BUS_WIDTH;
+ }
+ cfg1 = ((dolphin->info_size) << SPAR_INFO_SIZE_OFFSET);
+ cfg2 = (dolphin->ecc_mode << ECC_MODE_OFFSET) | (dolphin->info_pos << SPAR_INFO_POS_OFFSET) | ((dolphin->sct_pg - 1) << SPAR_SECTOR_NUM_OFFSET) | dolphin->ecc_pos;
+
+#ifndef CONFIG_NAND_SPL
+ if (mbuf)
+ {
+ Dcache_CleanRegion((unsigned int)mbuf, dolphin->m_size*dolphin->sct_pg);
+ Dcache_InvalRegion((unsigned int)mbuf, dolphin->m_size*dolphin->sct_pg);
+ }
+
+ if (sbuf)
+ {
+ Dcache_CleanRegion((unsigned int)sbuf, dolphin->s_size*dolphin->sct_pg);
+ Dcache_InvalRegion((unsigned int)sbuf, dolphin->s_size*dolphin->sct_pg);
+ }
+#endif
+
+ if(mbuf && sbuf)
+ {
+ cfg0 |= MAIN_USE | SPAR_USE;
+ cfg1 |= (dolphin->m_size - 1) | ((dolphin->s_size - 1) << SPAR_SIZE_OFFSET);
+ sprd_dolphin_reg_write(NFC_MAIN_ADDR_REG, (uint32_t)mbuf);
+ sprd_dolphin_reg_write(NFC_SPAR_ADDR_REG, (uint32_t)sbuf);
+ }
+ else
+ {
+ cfg0 |= MAIN_USE;
+ if(mbuf)
+ {
+ cfg1 |= dolphin->m_size - 1;
+ sprd_dolphin_reg_write(NFC_MAIN_ADDR_REG, (uint32_t)mbuf);
+ }
+ else
+ {
+ cfg1 |= dolphin->s_size - 1;
+ sprd_dolphin_reg_write(NFC_MAIN_ADDR_REG, (uint32_t)sbuf);
+ }
+ }
+ sprd_dolphin_reg_write(NFC_CFG0_REG, cfg0);
+ sprd_dolphin_reg_write(NFC_CFG1_REG, cfg1);
+ sprd_dolphin_reg_write(NFC_CFG2_REG, cfg2);
+ sprd_dolphin_nand_ins_exec(dolphin);
+ sprd_dolphin_nand_wait_finish(dolphin);
+ return 0;
+}
+#endif
+
+
+
+#ifdef DOLPHIN_KERNEL
+
+#ifdef NAND_IRQ_EN
+STATIC_FUNC void sprd_dolphin_nand_ins_exec_irq(struct sprd_dolphin_nand_info *dolphin)
+{
+ uint32_t i;
+ uint32_t cfg0;
+ uint32_t value = 0;
+
+ //DPRINT("%s enter\n", __func__);
+
+ for(i = 0; i < ((dolphin->ins_num + 1) >> 1); i++)
+ {
+ sprd_dolphin_reg_write(NFC_INST0_REG + (i << 2), dolphin->ins[i]);
+ }
+ cfg0 = sprd_dolphin_reg_read(NFC_CFG0_REG);
+ if(dolphin->wp_en)
+ {
+ cfg0 &= ~NFC_WPN;
+ }
+ else
+ {
+ cfg0 |= NFC_WPN;
+ }
+ cfg0 |= ((dolphin->chip << CS_SEL_OFFSET) & CS_SEL_MASK);
+
+ sprd_dolphin_reg_write(NFC_CFG0_REG, cfg0);
+
+ nfc_clear_interrupt();
+ nfc_enable_interrupt();
+
+ sprd_dolphin_reg_write(NFC_START_REG, NFC_START);
+
+ //DPRINT("%s leave\n", __func__);
+}
+
+STATIC_FUNC int sprd_dolphin_nand_wait_finish_irq(struct sprd_dolphin_nand_info *dolphin)
+{
+ unsigned int value;
+ unsigned int counter = 0;
+
+ //DPRINT("%s enter\n", __func__);
+
+ nfc_wait_op_done();
+ if(handle_status==NAND_HANDLE_DONE)
+ {
+ ret_irq_en=NAND_NO_ERROR;
+ }
+ else if(handle_status==NAND_HANDLE_TIMEOUT)
+ {
+ ret_irq_en=NAND_ERR_NEED_RETRY;
+ }
+ else if(handle_status==NAND_HANDLE_ERR)
+ {
+ ret_irq_en=NAND_ERR_NEED_RETRY;
+ }
+
+ //DPRINT("%s leave\n", __func__);
+
+ return 0;
+}
+
+STATIC_FUNC void nfc_wait_op_done(void)
+{
+ if (!wait_for_completion_timeout(&nfc_op_completion, msecs_to_jiffies(IRQ_TIMEOUT)))
+ {
+ handle_status=NAND_HANDLE_ERR;
+ DPRINT(KERN_ERR "%s, wait irq timeout\n", __func__);
+ }
+}
+
+STATIC_FUNC irqreturn_t nfc_irq_handler(int irq, void *dev_id)
+{
+ unsigned int value;
+
+ //DPRINT("%s enter\n", __func__); /*diable irq*/
+ nfc_disable_interrupt();
+
+ value = sprd_dolphin_reg_read(NFC_INT_REG);
+ //DPRINT("%s, NFC_INT_REG:0x%x\n", __func__, value);
+ /*record handle status*/
+ if(value & INT_TO_STS)
+ {
+
+ DPRINT(KERN_ALERT "%s, timeout occur NFC_INT_REG:0x%x\n", __func__, value);
+ handle_status=NAND_HANDLE_TIMEOUT;
+ }
+ else if(value & INT_DONE_STS)
+ {
+ handle_status=NAND_HANDLE_DONE;
+ }
+
+ /*clear irq status*/
+ //value = (INT_DONE_CLR | INT_TO_CLR);
+ //sprd_dolphin_reg_or(NFC_INT_REG, value); /* clear all interrupt status */
+
+ //value = NFC_CMD_CLR;
+ //sprd_dolphin_reg_or(NFC_START_REG, value); /* clear all interrupt status */
+
+ nfc_clear_interrupt();
+
+ complete(&nfc_op_completion);
+
+ //DPRINT("%s leave\n", __func__);
+
+ return IRQ_HANDLED;
+}
+#endif
+
+
+//read large page
+STATIC_FUNC int sprd_dolphin_nand_read_lp(struct mtd_info *mtd,uint8_t *mbuf, uint8_t *sbuf,uint32_t raw)
+{
+ struct sprd_dolphin_nand_info *dolphin = mtd_to_dolphin(mtd);
+ struct nand_chip *chip = dolphin->nand;
+ uint32_t column;
+ uint32_t page_addr;
+ uint32_t cfg0;
+ uint32_t cfg1;
+ uint32_t cfg2;
+ uint32_t i;
+ uint32_t err;
+ int size = 0 ,sct_size;
+ int ret = 0;
+ int num = 0;
+ uint8_t ecc_bit=0 ;
+ int ret_value = 0;
+ page_addr = dolphin->page;
+
+ //DPRINT("%s enter\n", __func__);
+
+ if(sbuf) {
+ column = mtd->writesize;
+ }
+ else
+ {
+ column = 0;
+ }
+ if(chip->options & NAND_BUSWIDTH_16)
+ {
+ column >>= 1;
+ }
+ //DPRINT("sprd_dolphin_nand_read_lp,page_addr = %x,column = %x\r\n",page_addr, column);
+
+ sprd_dolphin_nand_ins_init(dolphin);
+ sprd_dolphin_nand_ins_add(NAND_MC_CMD(NAND_CMD_READ0), dolphin);
+ sprd_dolphin_nand_ins_add(NAND_MC_ADDR(column & 0xff), dolphin);
+ column >>= 8;
+ sprd_dolphin_nand_ins_add(NAND_MC_ADDR(column & 0xff), dolphin);
+
+ sprd_dolphin_nand_ins_add(NAND_MC_ADDR(page_addr & 0xff), dolphin);
+ page_addr >>= 8;
+ sprd_dolphin_nand_ins_add(NAND_MC_ADDR(page_addr & 0xff), dolphin);
+
+ if (5 == dolphin->a_cycles)// five address cycles
+ {
+ page_addr >>= 8;
+ sprd_dolphin_nand_ins_add(NAND_MC_ADDR(page_addr & 0xff), dolphin);
+ }
+ sprd_dolphin_nand_ins_add(NAND_MC_CMD(NAND_CMD_READSTART), dolphin);
+
+ sprd_dolphin_nand_ins_add(NFC_MC_WRB0_ID, dolphin); //wait rb
+ if(mbuf && sbuf)
+ {
+ sprd_dolphin_nand_ins_add(NAND_MC_SRDT, dolphin);
+ //switch to main part
+ sprd_dolphin_nand_ins_add(NAND_MC_CMD(NAND_CMD_RNDOUT), dolphin);
+ sprd_dolphin_nand_ins_add(NAND_MC_ADDR(0), dolphin);
+ sprd_dolphin_nand_ins_add(NAND_MC_ADDR(0), dolphin);
+ sprd_dolphin_nand_ins_add(NAND_MC_CMD(NAND_CMD_RNDOUTSTART), dolphin);
+ sprd_dolphin_nand_ins_add(NAND_MC_MRDT, dolphin);
+ }
+ else
+ {
+ sprd_dolphin_nand_ins_add(NAND_MC_MRDT, dolphin);
+ }
+ sprd_dolphin_nand_ins_add(NFC_MC_DONE_ID, dolphin);
+ //config registers
+ cfg0 = NFC_AUTO_MODE | MAIN_SPAR_APT | ((dolphin->sct_pg - 1)<< SECTOR_NUM_OFFSET);
+ if((!raw) && mbuf && sbuf)
+ {
+ cfg0 |= ECC_EN | DETECT_ALL_FF;
+ }
+ if(chip->options & NAND_BUSWIDTH_16)
+ {
+ cfg0 |= BUS_WIDTH;
+ }
+ cfg1 = (dolphin->info_size) << SPAR_INFO_SIZE_OFFSET;
+ cfg2 = (dolphin->ecc_mode << ECC_MODE_OFFSET) | (dolphin->info_pos << SPAR_INFO_POS_OFFSET) | ((dolphin->sct_pg - 1) << SPAR_SECTOR_NUM_OFFSET) | dolphin->ecc_pos;
+
+ if(mbuf && sbuf)
+ {
+ cfg1 |= (dolphin->m_size - 1) | ((dolphin->s_size - 1)<< SPAR_SIZE_OFFSET);
+ sprd_dolphin_reg_write(NFC_MAIN_ADDR_REG, dolphin->p_mbuf);
+ sprd_dolphin_reg_write(NFC_SPAR_ADDR_REG, dolphin->p_oob);
+ cfg0 |= MAIN_USE | SPAR_USE;
+ }
+ else
+ {
+ if(mbuf)
+ {
+ cfg1 |= (dolphin->m_size - 1);
+ sprd_dolphin_reg_write(NFC_MAIN_ADDR_REG, dolphin->p_mbuf);
+ }
+ if(sbuf)
+ {
+ cfg1 |= (dolphin->s_size - 1);
+ sprd_dolphin_reg_write(NFC_MAIN_ADDR_REG, dolphin->p_oob);
+ }
+ cfg0 |= MAIN_USE;
+ }
+ sprd_dolphin_reg_write(NFC_CFG0_REG, cfg0);
+ sprd_dolphin_reg_write(NFC_CFG1_REG, cfg1);
+ sprd_dolphin_reg_write(NFC_CFG2_REG, cfg2);
+
+
+#ifdef NAND_IRQ_EN
+ sprd_dolphin_nand_ins_exec_irq(dolphin);
+ sprd_dolphin_nand_wait_finish_irq(dolphin);
+#else
+ sprd_dolphin_nand_ins_exec(dolphin);
+ sprd_dolphin_nand_wait_finish(dolphin);
+#endif
+
+
+ if(!raw) {
+ for(i = 0; i < dolphin->sct_pg; i++) {
+ err = sprd_dolphin_get_decode_sts(i);
+ if(err == ERR_ERR_NUM0_MASK) {
+ ret = 0;
+ ecc_bit = 0;
+ size = dolphin->s_size * (i+1);
+ sct_size = dolphin->s_size;
+ while(sct_size--){
+ if(sbuf[--size] != 0xFF){
+ DPRINT("%s spare area bif flip 0x%x\n",__func__,sbuf[size]);
+ for(num=0; num<8; num++){
+ if(!(sbuf[size]>>num & 0x1)){
+ ecc_bit++;
+ if(ecc_bit> chip->ecc.strength){
+ ret=-1;
+ ret_value = -1;
+ DPRINT("%s spare area ecc check error!\n",__func__);
+ break;
+ }
+ }
+ }
+ if(ret<0){
+ mtd->ecc_stats.failed++;
+ break;
+ }
+ sbuf[size]=0xff;
+ }
+ }
+ if(!ret){
+ size = dolphin->m_size*(i+1) ;
+ sct_size = dolphin->m_size ;
+ while(sct_size--){
+ if(mbuf[--size] != 0xFF){
+ DPRINT("%s main area bif flip 0x%x\n",__func__,mbuf[size]);
+ for(num = 0 ; num < 8 ; num++){
+ if(!(mbuf[size]>>num & 0x1) ){
+ ecc_bit++;
+ if(ecc_bit > chip->ecc.strength){
+ ret = -1;
+ ret_value = -1;
+ DPRINT("%s main+spare area ecc check error!\n",__func__);
+ break;
+ }
+ }
+ }
+ }
+ if(ret<0){
+ mtd->ecc_stats.failed++;
+ break;
+ }
+ mbuf[size] = 0xff;
+ }
+ }
+ if(!ret) {
+ if((ret_value >= 0) && (ecc_bit > ret_value))
+ ret_value = ecc_bit;
+ }
+ }
+ else {
+ mtd->ecc_stats.corrected += err;
+ if((ret_value >= 0) && (err > ret_value))
+ ret_value = err;
+ }
+ }
+ }
+
+ if(mbuf) {
+ memcpy(mbuf, (const void *)dolphin->v_mbuf, dolphin->write_size);
+ }
+ if(sbuf) {
+ memcpy(sbuf, (const void *)dolphin->v_oob, dolphin->oob_size);
+ }
+
+ return ret_value < 0 ? 0 : ret_value;
+}
+
+
+
+STATIC_FUNC int sprd_dolphin_nand_write_lp(struct mtd_info *mtd,const uint8_t *mbuf, uint8_t *sbuf,uint32_t raw)
+{
+ struct sprd_dolphin_nand_info *dolphin = mtd_to_dolphin(mtd);
+ struct nand_chip *chip = dolphin->nand;
+ uint32_t column;
+ uint32_t page_addr;
+ uint32_t cfg0;
+ uint32_t cfg1;
+ uint32_t cfg2;
+ int status = 0;
+ page_addr = dolphin->page;
+
+ //DPRINT("%s, page addr is %lx\n", __func__, page_addr);
+
+ if(mbuf) {
+ column = 0;
+ }
+ else {
+ column = mtd->writesize;
+ }
+ if(chip->options & NAND_BUSWIDTH_16)
+ {
+ column >>= 1;
+ }
+
+ if(mbuf) {
+ memcpy((void *)dolphin->v_mbuf, (const void *)mbuf, dolphin->write_size);
+ }
+ if(sbuf) {
+ memcpy((void *)dolphin->v_oob, (const void *)sbuf, dolphin->oob_size);
+ }
+
+ sprd_dolphin_nand_ins_init(dolphin);
+ sprd_dolphin_nand_ins_add(NAND_MC_CMD(NAND_CMD_SEQIN), dolphin);
+ sprd_dolphin_nand_ins_add(NAND_MC_ADDR(column & 0xff), dolphin);
+ column >>= 8;
+ sprd_dolphin_nand_ins_add(NAND_MC_ADDR(column & 0xff), dolphin);
+ sprd_dolphin_nand_ins_add(NAND_MC_ADDR(page_addr & 0xff), dolphin);
+ page_addr >>= 8;
+ sprd_dolphin_nand_ins_add(NAND_MC_ADDR(page_addr & 0xff), dolphin);
+
+ if (5 == dolphin->a_cycles)// five address cycles
+ {
+ page_addr >>= 8;
+ sprd_dolphin_nand_ins_add(NAND_MC_ADDR(page_addr & 0xff), dolphin);
+ }
+
+ sprd_dolphin_nand_ins_add(NAND_MC_MWDT, dolphin);
+ if(mbuf && sbuf)
+ {
+ sprd_dolphin_nand_ins_add(NAND_MC_SWDT, dolphin);
+ }
+ sprd_dolphin_nand_ins_add(NAND_MC_CMD(NAND_CMD_PAGEPROG), dolphin);
+ sprd_dolphin_nand_ins_add(NFC_MC_WRB0_ID, dolphin); //wait rb
+
+ sprd_dolphin_nand_ins_add(NFC_MC_DONE_ID, dolphin);
+ //config registers
+ cfg0 = NFC_AUTO_MODE | NFC_RW | NFC_WPN | MAIN_SPAR_APT | ((dolphin->sct_pg - 1)<< SECTOR_NUM_OFFSET);
+ if((!raw) && mbuf && sbuf)
+ {
+ cfg0 |= ECC_EN;
+ }
+ if(chip->options & NAND_BUSWIDTH_16)
+ {
+ cfg0 |= BUS_WIDTH;
+ }
+ cfg1 = ((dolphin->info_size) << SPAR_INFO_SIZE_OFFSET);
+ cfg2 = (dolphin->ecc_mode << ECC_MODE_OFFSET) | (dolphin->info_pos << SPAR_INFO_POS_OFFSET) | ((dolphin->sct_pg - 1) << SPAR_SECTOR_NUM_OFFSET) | dolphin->ecc_pos;
+
+ if(mbuf && sbuf)
+ {
+ cfg0 |= MAIN_USE | SPAR_USE;
+ cfg1 |= (dolphin->m_size - 1) | ((dolphin->s_size - 1) << SPAR_SIZE_OFFSET);
+ sprd_dolphin_reg_write(NFC_MAIN_ADDR_REG, dolphin->p_mbuf);
+ sprd_dolphin_reg_write(NFC_SPAR_ADDR_REG, dolphin->p_oob);
+ }
+ else
+ {
+ cfg0 |= MAIN_USE;
+ if(mbuf)
+ {
+ cfg1 |= dolphin->m_size - 1;
+ sprd_dolphin_reg_write(NFC_MAIN_ADDR_REG, dolphin->p_mbuf);
+ }
+ else
+ {
+ cfg1 |= dolphin->s_size - 1;
+ sprd_dolphin_reg_write(NFC_MAIN_ADDR_REG, dolphin->p_oob);
+ }
+ }
+ sprd_dolphin_reg_write(NFC_CFG0_REG, cfg0);
+ sprd_dolphin_reg_write(NFC_CFG1_REG, cfg1);
+ sprd_dolphin_reg_write(NFC_CFG2_REG, cfg2);
+
+
+#ifdef NAND_IRQ_EN
+ sprd_dolphin_nand_ins_exec_irq(dolphin);
+ sprd_dolphin_nand_wait_finish_irq(dolphin);
+#else
+ sprd_dolphin_nand_ins_exec(dolphin);
+ sprd_dolphin_nand_wait_finish(dolphin);
+#endif
+
+
+ sprd_dolphin_nand_read_status(&g_dolphin);
+ status = s_oob_data[0];
+ if (status & NAND_STATUS_FAIL)
+ return -EIO;
+ else
+ return 0;
+}
+#endif
+
+
+
+STATIC_FUNC int sprd_dolphin_nand_read_sp(struct mtd_info *mtd,uint8_t *mbuf, uint8_t *sbuf,uint32_t raw)
+{
+ return 0;
+}
+STATIC_FUNC int sprd_dolphin_nand_write_sp(struct mtd_info *mtd,const uint8_t *mbuf, uint8_t *sbuf,uint32_t raw)
+{
+ return 0;
+}
+STATIC_FUNC void sprd_dolphin_erase(struct mtd_info *mtd, int page_addr)
+{
+ struct sprd_dolphin_nand_info *dolphin = mtd_to_dolphin(mtd);
+ uint32_t cfg0 = 0;
+
+ //DPRINT("%s, page addr is %x\r\n", __func__ , page_addr);
+
+ sprd_dolphin_nand_ins_init(dolphin);
+ sprd_dolphin_nand_ins_add(NAND_MC_CMD(NAND_CMD_ERASE1), dolphin);
+ sprd_dolphin_nand_ins_add(NAND_MC_ADDR(page_addr & 0xff), dolphin);
+ page_addr >>= 8;
+ sprd_dolphin_nand_ins_add(NAND_MC_ADDR(page_addr & 0xff), dolphin);
+ if((5 == dolphin->a_cycles) || ((4 == dolphin->a_cycles) && (512 == dolphin->write_size)))
+ {
+ page_addr >>= 8;
+ sprd_dolphin_nand_ins_add(NAND_MC_ADDR(page_addr & 0xff), dolphin);
+ }
+ sprd_dolphin_nand_ins_add(NAND_MC_CMD(NAND_CMD_ERASE2), dolphin);
+ sprd_dolphin_nand_ins_add(NFC_MC_WRB0_ID, dolphin); //wait rb
+
+ sprd_dolphin_nand_ins_add(NFC_MC_DONE_ID, dolphin);
+ cfg0 = NFC_WPN | NFC_ONLY_NAND_MODE;
+ sprd_dolphin_reg_write(NFC_CFG0_REG, cfg0);
+
+
+ #ifdef NAND_IRQ_EN
+ sprd_dolphin_nand_ins_exec_irq(dolphin);
+ sprd_dolphin_nand_wait_finish_irq(dolphin);
+ #else
+ sprd_dolphin_nand_ins_exec(dolphin);
+ sprd_dolphin_nand_wait_finish(dolphin);
+ #endif
+
+ //DPRINT("%s leave\n", __func__);
+}
+STATIC_FUNC uint8_t sprd_dolphin_read_byte(struct mtd_info *mtd)
+{
+ uint8_t ch = 0xff;
+ struct sprd_dolphin_nand_info *dolphin = mtd_to_dolphin(mtd);
+ if(dolphin->buf_head < dolphin->_buf_tail)
+ {
+ ch = s_oob_data[dolphin->buf_head ++];
+ }
+ return ch;
+}
+STATIC_FUNC uint16_t sprd_dolphin_read_word(struct mtd_info *mtd)
+{
+ uint16_t data = 0xffff;
+ struct sprd_dolphin_nand_info *dolphin = mtd_to_dolphin(mtd);
+ if(dolphin->buf_head < (dolphin->_buf_tail - 1))
+ {
+ data = s_oob_data[dolphin->buf_head ++];
+ data |= ((uint16_t)s_oob_data[dolphin->buf_head ++]) << 8;
+ }
+ return data;
+}
+
+/*We do the wait in all specific operation ,so we do not need wait timeout here ,
+but the operation status need be return*/
+STATIC_FUNC int sprd_dolphin_waitfunc(struct mtd_info *mtd, struct nand_chip *chip)
+{
+ int status = 0;
+
+ sprd_dolphin_nand_read_status(&g_dolphin);
+ status = s_oob_data[0];
+
+ return status;
+}
+
+STATIC_FUNC int sprd_dolphin_ecc_calculate(struct mtd_info *mtd, const uint8_t *data,
+ uint8_t *ecc_code)
+{
+ return 0;
+}
+
+STATIC_FUNC int sprd_dolphin_ecc_correct(struct mtd_info *mtd, uint8_t *data,
+ uint8_t *read_ecc, uint8_t *calc_ecc)
+{
+ return 0;
+}
+
+STATIC_FUNC int sprd_dolphin_read_page(struct mtd_info *mtd, struct nand_chip *chip,
+ uint8_t *buf, int oob_required,int page)
+{
+ struct sprd_dolphin_nand_info *dolphin = mtd_to_dolphin(mtd);
+ int ret = 0;
+ dolphin->page = page;
+ if(512 == mtd->writesize)
+ {
+ ret = sprd_dolphin_nand_read_sp(mtd, buf, chip->oob_poi, 0);
+ }
+ else
+ {
+ ret = sprd_dolphin_nand_read_lp(mtd, buf, chip->oob_poi, 0);
+ }
+ return ret;
+}
+STATIC_FUNC int sprd_dolphin_read_page_raw(struct mtd_info *mtd, struct nand_chip *chip,
+ uint8_t *buf, int oob_required, int page)
+{
+ struct sprd_dolphin_nand_info *dolphin = mtd_to_dolphin(mtd);
+ int ret = 0;
+ dolphin->page = page;
+ if(512 == mtd->writesize)
+ {
+ ret = sprd_dolphin_nand_read_sp(mtd, buf, chip->oob_poi, 1);
+ }
+ else
+ {
+ ret = sprd_dolphin_nand_read_lp(mtd, buf, chip->oob_poi, 1);
+ }
+ return ret;
+}
+STATIC_FUNC int sprd_dolphin_read_oob(struct mtd_info *mtd, struct nand_chip *chip,
+ int page, int sndcmd)
+{
+ struct sprd_dolphin_nand_info *dolphin = mtd_to_dolphin(mtd);
+ int ret = 0;
+ dolphin->page = page;
+ if(512 == mtd->writesize)
+ {
+ ret = sprd_dolphin_nand_read_sp(mtd, 0, chip->oob_poi, 1);
+ }
+ else
+ {
+ ret = sprd_dolphin_nand_read_lp(mtd, 0, chip->oob_poi, 1);
+ }
+ return ret;
+}
+STATIC_FUNC int sprd_dolphin_write_page(struct mtd_info *mtd, struct nand_chip *chip,
+ const uint8_t *buf,int oob_required)
+{
+ int ret = 0;
+ if(512 == mtd->writesize)
+ {
+ ret = sprd_dolphin_nand_write_sp(mtd, buf, chip->oob_poi, 0);
+ }
+ else
+ {
+ ret = sprd_dolphin_nand_write_lp(mtd, buf, chip->oob_poi, 0);
+ }
+ return ret;
+}
+STATIC_FUNC int sprd_dolphin_write_page_raw(struct mtd_info *mtd, struct nand_chip *chip,
+ const uint8_t *buf,int oob_required)
+{
+ int ret = 0;
+ if(512 == mtd->writesize)
+ {
+ ret = sprd_dolphin_nand_write_sp(mtd, buf, chip->oob_poi, 1);
+ }
+ else
+ {
+ ret = sprd_dolphin_nand_write_lp(mtd, buf, chip->oob_poi, 1);
+ }
+ return ret;
+}
+STATIC_FUNC int sprd_dolphin_write_oob(struct mtd_info *mtd, struct nand_chip *chip,
+ int page)
+{
+ struct sprd_dolphin_nand_info *dolphin = mtd_to_dolphin(mtd);
+ int ret = 0;
+ dolphin->page = page;
+ if(512 == mtd->writesize)
+ {
+ ret = sprd_dolphin_nand_write_sp(mtd, 0, chip->oob_poi, 1);
+ }
+ else
+ {
+ ret = sprd_dolphin_nand_write_lp(mtd, 0, chip->oob_poi, 1);
+ }
+ return ret;
+}
+
+
+/**
+ * nand_block_bad - [DEFAULT] Read bad block marker from the chip
+ * @mtd: MTD device structure
+ * @ofs: offset from device start
+ * @getchip: 0, if the chip is already selected
+ *
+ * Check, if the block is bad.
+ */
+STATIC_FUNC int sprd_dolphin_block_bad(struct mtd_info *mtd, loff_t ofs, int getchip)
+{
+ int page, chipnr, res = 0;
+ struct sprd_dolphin_nand_info *dolphin = mtd_to_dolphin(mtd);
+ struct nand_chip *chip = mtd->priv;
+ uint16_t bad;
+ uint16_t *buf;
+
+ page = (int)((long)ofs >> chip->page_shift) & chip->pagemask;
+
+ if (getchip) {
+ chipnr = (int)((long)ofs >> chip->chip_shift);
+ /* Select the NAND device */
+ chip->select_chip(mtd, chipnr);
+ }
+
+ chip->cmdfunc(mtd, NAND_CMD_READOOB, 0, page);
+ if(512 == dolphin->write_size) {
+ sprd_dolphin_nand_read_sp(mtd, 0, s_oob_data, 1);
+ }
+ else {
+ sprd_dolphin_nand_read_lp(mtd, 0, s_oob_data, 1);
+ }
+ dolphin->buf_head = 0;
+ dolphin->_buf_tail = mtd->oobsize;
+ buf = (uint16_t *)(s_oob_data + chip->badblockpos);
+
+ if (chip->options & NAND_BUSWIDTH_16) {
+ bad = *(buf);
+ if ((bad & 0xFF) != 0xff) {
+ res = 1;
+ }
+ } else {
+ bad = *(buf) & 0xff;
+ if (bad != 0xff){
+ res = 1;
+ }
+ }
+ return res;
+}
+
+STATIC_FUNC void sprd_dolphin_nand_cmdfunc(struct mtd_info *mtd, unsigned int command,
+ int column, int page_addr)
+{
+ struct sprd_dolphin_nand_info *dolphin = mtd_to_dolphin(mtd);
+ /* Emulate NAND_CMD_READOOB */
+ if (command == NAND_CMD_READOOB) {
+ column += mtd->writesize;
+ command = NAND_CMD_READ0;
+ }
+ /*
+ * program and erase have their own busy handlers
+ * status, sequential in, and deplete1 need no delay
+ */
+ switch (command) {
+ case NAND_CMD_STATUS:
+ sprd_dolphin_nand_read_status(dolphin);
+ break;
+ case NAND_CMD_READID:
+ sprd_dolphin_nand_read_id(dolphin, (uint32_t *)s_oob_data);
+ break;
+ case NAND_CMD_RESET:
+ sprd_dolphin_nand_reset(dolphin);
+ break;
+ case NAND_CMD_ERASE1:
+ sprd_dolphin_erase(mtd, page_addr);
+ break;
+ case NAND_CMD_READ0:
+ case NAND_CMD_SEQIN:
+ dolphin->column = column;
+ dolphin->page = page_addr;
+ default:
+ break;
+ }
+}
+STATIC_FUNC void sprd_dolphin_nand_hwecc_ctl(struct mtd_info *mtd, int mode)
+{
+ return; //do nothing
+}
+
+STATIC_FUNC void sprd_dolphin_nand_hw_init(struct sprd_dolphin_nand_info *dolphin)
+{
+ uint32_t val;
+ NAND_CLK_CONFG;
+ sci_glb_set(REG_AP_AHB_AHB_EB, BIT_NAND_ENABLE);
+
+ sci_glb_set(REG_AP_AHB_AHB_RST,BIT_NAND_RESET);
+ mdelay(1);
+ sci_glb_clr(REG_AP_AHB_AHB_RST,BIT_NAND_RESET);
+ val = (3) | (4 << NFC_RWH_OFFSET) | (3 << NFC_RWE_OFFSET) | (3 << NFC_RWS_OFFSET) | (3 << NFC_ACE_OFFSET) | (3 << NFC_ACS_OFFSET);
+ sprd_dolphin_reg_write(NFC_TIMING_REG, val);
+ sprd_dolphin_reg_write(NFC_TIMEOUT_REG, 0xffffffff);
+
+ //close write protect
+ sprd_dolphin_nand_wp_en(dolphin, 0);
+}
+
+
+int board_nand_init(struct nand_chip *chip)
+{
+ DPRINT("board_nand_init\r\n");
+
+ sprd_dolphin_nand_hw_init(&g_dolphin);
+
+ chip->select_chip = sprd_dolphin_select_chip;
+ chip->cmdfunc = sprd_dolphin_nand_cmdfunc;
+ chip->read_byte = sprd_dolphin_read_byte;
+ chip->read_word = sprd_dolphin_read_word;
+ chip->waitfunc = sprd_dolphin_waitfunc;
+ chip->ecc.mode = NAND_ECC_HW;
+ chip->ecc.calculate = sprd_dolphin_ecc_calculate;
+ chip->ecc.hwctl = sprd_dolphin_nand_hwecc_ctl;
+ chip->ecc.correct = sprd_dolphin_ecc_correct;
+ chip->ecc.read_page = sprd_dolphin_read_page;
+ chip->ecc.read_page_raw = sprd_dolphin_read_page_raw;
+ chip->ecc.write_page = sprd_dolphin_write_page;
+ chip->ecc.write_page_raw = sprd_dolphin_write_page_raw;
+ chip->ecc.read_oob = sprd_dolphin_read_oob;
+ chip->ecc.write_oob = sprd_dolphin_write_oob;
+ chip->erase_cmd = sprd_dolphin_erase;
+
+ chip->ecc.bytes = CONFIG_SYS_NAND_ECCBYTES;
+ g_dolphin.ecc_mode = ecc_mode_convert(CONFIG_SYS_NAND_ECC_MODE);
+ g_dolphin.nand = chip;
+
+#ifdef DOLPHIN_KERNEL
+ //set default strength
+ chip->ecc.strength = CONFIG_SYS_NAND_ECC_MODE;
+#endif
+
+#ifdef DOLPHIN_UBOOT
+ chip->eccbitmode = CONFIG_SYS_NAND_ECC_MODE;
+#endif
+
+ //dolphin_set_timing_config(&g_dolphin, SPRD_NAND_CLOCK); /* 153 is current clock 153MHz */
+
+ chip->ecc.size = CONFIG_SYS_NAND_ECCSIZE;
+
+ chip->chip_delay = 20;
+ chip->priv = &g_dolphin;
+
+ //DPRINT("v2 board eccbitmode %d\n", chip->eccbitmode);
+
+ chip->options = NAND_BUSWIDTH_16;
+
+ return 0;
+}
+
+#ifdef DOLPHIN_UBOOT
+#ifndef CONFIG_NAND_SPL
+void McuReadNandType(unsigned char *array)
+{
+
+}
+#endif
+
+static unsigned long nfc_read_status(void)
+{
+ unsigned long status = 0;
+
+ sprd_dolphin_nand_read_status(&g_dolphin);
+ status = s_oob_data[0];
+
+ return status;
+}
+
+#ifndef CONFIG_NAND_SPL
+static int sprd_scan_one_block(int blk, int erasesize, int writesize)
+{
+ int i, cmd;
+ int status = 1, ii;
+ u32 size = 0;
+ int oobsize = mtdoobsize;
+ int column, page_addr;
+
+ page_addr = blk * (erasesize / writesize);
+ for (ii = 0; ii < 2; ii ++) {
+ DPRINT("please debug here : %s %d\n", __FUNCTION__, __LINE__);
+ sprd_dolphin_nand_ins_init(&g_dolphin);
+ sprd_dolphin_nand_ins_add(NAND_MC_CMD(NAND_CMD_READ0), &g_dolphin);
+ sprd_dolphin_nand_ins_add(NAND_MC_CMD(NAND_CMD_READSTART), &g_dolphin);
+ if ((s_oob_data[0] != 0xff) || (s_oob_data[1] != 0xff))
+ break;
+ } //for (ii = 0; ii < 2; ii ++)
+
+ if ((s_oob_data[0] == 0xff) && (s_oob_data[1] == 0xff))
+ status = 0; //good block
+ else
+ status = 1; //bad block
+
+ return status;
+}
+
+static unsigned long nand_ctl_erase_block(int blk, int erasesize, int writesize)
+{
+ int cmd, status;
+ int page_addr;
+
+ page_addr = blk * (erasesize / writesize);
+ sprd_dolphin_erase(&g_dolphin, page_addr);
+ status = nfc_read_status();
+
+ return status;
+}
+#endif
+
+
+#ifndef CONFIG_NAND_SPL
+void nand_scan_patition(int blocks, int erasesize, int writesize)
+{
+ int blk;
+ int ret;
+ int status;
+
+ //read_chip_id();
+ for (blk = 0; blk < blocks; blk ++) {
+ ret = sprd_scan_one_block(blk, erasesize, writesize);
+ if (ret != 0) {
+ DPRINT("\n%d is bad, scrub to erase it, ", blk);
+ ret = nand_ctl_erase_block(blk, erasesize, writesize);
+ DPRINT("0x%02x\n", ret);
+ } else {
+ ret = nand_ctl_erase_block(blk, erasesize, writesize);
+ DPRINT("erasing block : %d %d % \r", blk, (blk * 100 ) / blocks);
+ }
+ }
+}
+int nand_scan_block(int block, int erasesize, int writesize){
+ int ret = 0;
+ ret = nand_ctl_erase_block(block, erasesize, writesize);
+ ret = ret&1;
+
+ return ret;
+}
+#endif
+#endif //DOLPHIN_UBOOT end
+
+
+
+#ifdef DOLPHIN_KERNEL
+extern int parse_mtd_partitions(struct mtd_info *master, const char **types,
+ struct mtd_partition **pparts,
+ struct mtd_part_parser_data *data);
+
+static struct mtd_info *sprd_mtd = NULL;
+#ifdef CONFIG_MTD_CMDLINE_PARTS
+const char *part_probes[] = { "cmdlinepart", NULL };
+#endif
+
+STATIC_FUNC int sprd_nand_dma_init(struct sprd_dolphin_nand_info *dolphin)
+{
+ dma_addr_t phys_addr = 0;
+ void *virt_ptr = 0;
+ virt_ptr = dma_alloc_coherent(NULL, dolphin->write_size, &phys_addr, GFP_KERNEL);
+ if (virt_ptr == NULL) {
+ DPRINT(KERN_ERR "NAND - Failed to allocate memory for DMA main buffer\n");
+ return -ENOMEM;
+ }
+ dolphin->v_mbuf = (u32)virt_ptr;
+ dolphin->p_mbuf = (u32)phys_addr;
+
+ virt_ptr = dma_alloc_coherent(NULL, dolphin->oob_size, &phys_addr, GFP_KERNEL);
+ if (virt_ptr == NULL) {
+ DPRINT(KERN_ERR "NAND - Failed to allocate memory for DMA oob buffer\n");
+ dma_free_coherent(NULL, dolphin->write_size, (void *)dolphin->v_mbuf, (dma_addr_t)dolphin->p_mbuf);
+ return -ENOMEM;
+ }
+ dolphin->v_oob = (u32)virt_ptr;
+ dolphin->p_oob = (u32)phys_addr;
+ return 0;
+}
+STATIC_FUNC void sprd_nand_dma_deinit(struct sprd_dolphin_nand_info *dolphin)
+{
+ dma_free_coherent(NULL, dolphin->write_size, (void *)dolphin->v_mbuf, (dma_addr_t)dolphin->p_mbuf);
+ dma_free_coherent(NULL, dolphin->write_size, (void *)dolphin->v_oob, (dma_addr_t)dolphin->p_oob);
+}
+
+STATIC_FUNC int sprd_nand_probe(struct platform_device *pdev)
+{
+ struct nand_chip *this;
+ struct resource *regs = NULL;
+ struct mtd_partition *partitions = NULL;
+ int num_partitions = 0;
+ int ret = 0;
+ struct regulator * mmc_regu = NULL;
+
+ #ifdef NAND_IRQ_EN
+ int err = 0;
+ init_completion(&nfc_op_completion);
+ err = request_irq(IRQ_NFC_INT, nfc_irq_handler, 0, DRIVER_NAME, NULL);
+ if (err) {
+ DPRINT(KERN_ERR "request_irq error\n");
+ goto prob_err;
+ }
+ else
+ DPRINT(KERN_ALERT "request_irq ok\n");
+ #endif
+
+
+ regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!regs) {
+ dev_err(&pdev->dev,"resources unusable\n");
+ goto prob_err;
+ }
+
+ /*turn on the emmc power, otherwise may cause I/O error in Low and high temperature test*/
+ /*only for 7731gga*/
+ mmc_regu = regulator_get(NULL,"vddemmcio");
+ regulator_enable(mmc_regu);
+
+ memset(&g_dolphin, 0 , sizeof(g_dolphin));
+
+ platform_set_drvdata(pdev, &g_dolphin);
+ g_dolphin.pdev = pdev;
+
+ sprd_mtd = kmalloc(sizeof(struct mtd_info) + sizeof(struct nand_chip), GFP_KERNEL);
+ this = (struct nand_chip *)(&sprd_mtd[1]);
+ memset((char *)sprd_mtd, 0, sizeof(struct mtd_info));
+ memset((char *)this, 0, sizeof(struct nand_chip));
+
+ sprd_mtd->priv = this;
+
+ this->options |= NAND_BUSWIDTH_16;
+ //this->options |= NAND_NO_READRDY;
+
+ board_nand_init(this);
+
+
+ if (sprd_dolphin_nand_reset(&g_dolphin) != 0) {
+ ret = -ENXIO;
+ DPRINT(KERN_ERR "nand reset failed!!!!!!!!!!!!!\n");
+ goto prob_err;
+ }
+ msleep(1);
+
+ if (sprd_dolphin_nand_read_id(&g_dolphin, (uint32_t *)s_oob_data) != 0) {
+ ret = -ENXIO;
+ DPRINT(KERN_ERR "nand read id failed, no nand device!!!!!!!!!!!!!\n");
+ }
+ else
+ DPRINT(KERN_ALERT "nand read id ok, nand exists!!!!!!!!!!!!!\n");
+
+ nand_hardware_config(sprd_mtd, this, s_oob_data);
+ if(sprd_nand_dma_init(&g_dolphin) != 0) {
+ return -ENOMEM;
+ }
+
+ //nand_scan(sprd_mtd, 1);
+ /* first scan to find the device and get the page size */
+ if (nand_scan_ident(sprd_mtd, 1, NULL)) {
+ ret = -ENXIO;
+ goto prob_err;
+ }
+ /* oob size may changed by last scan.
+ * FIX ME.
+ */
+ sprd_mtd->oobsize =g_dolphin.oob_size;
+
+ //this->IO_ADDR_R = g_dolphin.v_mbuf;
+ //this->IO_ADDR_W = g_dolphin.v_mbuf;
+
+ /* second phase scan */
+ if (nand_scan_tail(sprd_mtd)) {
+ ret = -ENXIO;
+ goto prob_err;
+ }
+
+ sprd_mtd->name = "sprd-nand";
+ num_partitions = parse_mtd_partitions(sprd_mtd, part_probes, &partitions, 0);
+
+ if ((!partitions) || (num_partitions == 0)) {
+ DPRINT(KERN_ALERT "No parititions defined, or unsupported device.\n");
+ goto release;
+ }
+
+#ifdef CONFIG_MTD_CMDLINE_PARTS
+ mtd_device_register(sprd_mtd, partitions, num_partitions);
+#endif
+
+ return 0;
+release:
+ nand_release(sprd_mtd);
+ sprd_nand_dma_deinit(&g_dolphin);
+prob_err:
+ sci_glb_clr(REG_AP_AHB_AHB_EB, BIT_NAND_ENABLE);
+ kfree(sprd_mtd);
+ return ret;
+}
+
+STATIC_FUNC int sprd_nand_remove(struct platform_device *pdev)
+{
+ platform_set_drvdata(pdev, NULL);
+ nand_release(sprd_mtd);
+ sprd_nand_dma_deinit(&g_dolphin);
+ kfree(sprd_mtd);
+ return 0;
+}
+
+#ifdef CONFIG_PM
+STATIC_FUNC int sprd_nand_suspend(struct platform_device *dev, pm_message_t pm)
+{
+ //nothing to do
+ return 0;
+}
+
+STATIC_FUNC int sprd_nand_resume(struct platform_device *dev)
+{
+ sprd_dolphin_nand_hw_init(&g_dolphin);
+ return 0;
+}
+#else
+#define sprd_nand_suspend NULL
+#define sprd_nand_resume NULL
+#endif
+
+#ifdef CONFIG_OF
+
+static const struct of_device_id sprd_nand_of_match[] = {
+ { .compatible = "sprd,sprd-nand"},
+ {}
+};
+MODULE_DEVICE_TABLE(of, sprd_nand_of_match);
+#endif
+
+static struct platform_driver sprd_nand_driver = {
+ .probe = sprd_nand_probe,
+ .remove = sprd_nand_remove,
+ .suspend = sprd_nand_suspend,
+ .resume = sprd_nand_resume,
+ .driver = {
+ .name = "sprd-nand",
+ .owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(sprd_nand_of_match),
+ },
+};
+
+STATIC_FUNC int __init sprd_nand_init(void)
+{
+ return platform_driver_register(&sprd_nand_driver);
+}
+
+STATIC_FUNC void __exit sprd_nand_exit(void)
+{
+ platform_driver_unregister(&sprd_nand_driver);
+}
+
+module_init(sprd_nand_init);
+module_exit(sprd_nand_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("giya.li@spreadtrum.com");
+MODULE_DESCRIPTION("SPRD dolphin MTD NAND driver");
+MODULE_ALIAS("platform:sprd-nand");
+
+#endif
+
generated by cgit v1.3.1 (git 2.54.0) at 2026-08-15 20:19:59 +0000