diff options
author | Patrick Delaunay <patrick.delaunay@foss.st.com> | 2021-09-22 12:02:26 +0300 |
---|---|---|
committer | Ramon Fried <rfried.dev@gmail.com> | 2021-09-28 18:50:55 +0300 |
commit | 4c3e84784849660f0c0d29e15d6c75b96c4f7f3d (patch) | |
tree | dad0e8c3c8c60a6844327da2d6972590b775daf3 /drivers | |
parent | dba7eea008a12ea401f6a5a7e7bdeecef79d451c (diff) | |
download | u-boot-4c3e84784849660f0c0d29e15d6c75b96c4f7f3d.tar.xz |
mtd: remove SPEAr flash driver st_smi
Remove the driver st_smic.c used in SPEAr products and the associated
config CONFIG_ST_SMI; this driver is no more used in U-Boot after the
commit 570c3dcfc153 ("arm: Remove spear600 boards and the rest of SPEAr
support").
Fixes: 570c3dcfc153 ("arm: Remove spear600 boards and the rest of SPEAr support")
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Stefan Roese <sr@denx.de>
Reviewed-by: Tom Rini <trini@konsulko.com>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/mtd/Makefile | 1 | ||||
-rw-r--r-- | drivers/mtd/st_smi.c | 565 |
2 files changed, 0 insertions, 566 deletions
diff --git a/drivers/mtd/Makefile b/drivers/mtd/Makefile index 6d77ebfaa5..ce0451108e 100644 --- a/drivers/mtd/Makefile +++ b/drivers/mtd/Makefile @@ -12,7 +12,6 @@ mtd-$(CONFIG_FLASH_CFI_DRIVER) += cfi_flash.o mtd-$(CONFIG_FLASH_CFI_MTD) += cfi_mtd.o mtd-$(CONFIG_FLASH_CFI_LEGACY) += jedec_flash.o mtd-$(CONFIG_FLASH_PIC32) += pic32_flash.o -mtd-$(CONFIG_ST_SMI) += st_smi.o mtd-$(CONFIG_STM32_FLASH) += stm32_flash.o mtd-$(CONFIG_RENESAS_RPC_HF) += renesas_rpc_hf.o mtd-$(CONFIG_HBMC_AM654) += hbmc-am654.o diff --git a/drivers/mtd/st_smi.c b/drivers/mtd/st_smi.c deleted file mode 100644 index 7c652e6c53..0000000000 --- a/drivers/mtd/st_smi.c +++ /dev/null @@ -1,565 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0+ -/* - * (C) Copyright 2009 - * Vipin Kumar, ST Microelectronics, vipin.kumar@st.com. - */ - -#include <common.h> -#include <flash.h> -#include <linux/delay.h> -#include <linux/err.h> -#include <linux/mtd/st_smi.h> - -#include <asm/io.h> -#include <asm/arch/hardware.h> - -#if defined(CONFIG_MTD_NOR_FLASH) - -static struct smi_regs *const smicntl = - (struct smi_regs * const)CONFIG_SYS_SMI_BASE; -static ulong bank_base[CONFIG_SYS_MAX_FLASH_BANKS] = - CONFIG_SYS_FLASH_ADDR_BASE; -flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; - -/* data structure to maintain flash ids from different vendors */ -struct flash_device { - char *name; - u8 erase_cmd; - u32 device_id; - u32 pagesize; - unsigned long sectorsize; - unsigned long size_in_bytes; -}; - -#define FLASH_ID(n, es, id, psize, ssize, size) \ -{ \ - .name = n, \ - .erase_cmd = es, \ - .device_id = id, \ - .pagesize = psize, \ - .sectorsize = ssize, \ - .size_in_bytes = size \ -} - -/* - * List of supported flash devices. - * Currently the erase_cmd field is not used in this driver. - */ -static struct flash_device flash_devices[] = { - FLASH_ID("st m25p16" , 0xd8, 0x00152020, 0x100, 0x10000, 0x200000), - FLASH_ID("st m25p32" , 0xd8, 0x00162020, 0x100, 0x10000, 0x400000), - FLASH_ID("st m25p64" , 0xd8, 0x00172020, 0x100, 0x10000, 0x800000), - FLASH_ID("st m25p128" , 0xd8, 0x00182020, 0x100, 0x40000, 0x1000000), - FLASH_ID("st m25p05" , 0xd8, 0x00102020, 0x80 , 0x8000 , 0x10000), - FLASH_ID("st m25p10" , 0xd8, 0x00112020, 0x80 , 0x8000 , 0x20000), - FLASH_ID("st m25p20" , 0xd8, 0x00122020, 0x100, 0x10000, 0x40000), - FLASH_ID("st m25p40" , 0xd8, 0x00132020, 0x100, 0x10000, 0x80000), - FLASH_ID("st m25p80" , 0xd8, 0x00142020, 0x100, 0x10000, 0x100000), - FLASH_ID("st m45pe10" , 0xd8, 0x00114020, 0x100, 0x10000, 0x20000), - FLASH_ID("st m45pe20" , 0xd8, 0x00124020, 0x100, 0x10000, 0x40000), - FLASH_ID("st m45pe40" , 0xd8, 0x00134020, 0x100, 0x10000, 0x80000), - FLASH_ID("st m45pe80" , 0xd8, 0x00144020, 0x100, 0x10000, 0x100000), - FLASH_ID("sp s25fl004" , 0xd8, 0x00120201, 0x100, 0x10000, 0x80000), - FLASH_ID("sp s25fl008" , 0xd8, 0x00130201, 0x100, 0x10000, 0x100000), - FLASH_ID("sp s25fl016" , 0xd8, 0x00140201, 0x100, 0x10000, 0x200000), - FLASH_ID("sp s25fl032" , 0xd8, 0x00150201, 0x100, 0x10000, 0x400000), - FLASH_ID("sp s25fl064" , 0xd8, 0x00160201, 0x100, 0x10000, 0x800000), - FLASH_ID("mac 25l512" , 0xd8, 0x001020C2, 0x010, 0x10000, 0x10000), - FLASH_ID("mac 25l1005" , 0xd8, 0x001120C2, 0x010, 0x10000, 0x20000), - FLASH_ID("mac 25l2005" , 0xd8, 0x001220C2, 0x010, 0x10000, 0x40000), - FLASH_ID("mac 25l4005" , 0xd8, 0x001320C2, 0x010, 0x10000, 0x80000), - FLASH_ID("mac 25l4005a" , 0xd8, 0x001320C2, 0x010, 0x10000, 0x80000), - FLASH_ID("mac 25l8005" , 0xd8, 0x001420C2, 0x010, 0x10000, 0x100000), - FLASH_ID("mac 25l1605" , 0xd8, 0x001520C2, 0x100, 0x10000, 0x200000), - FLASH_ID("mac 25l1605a" , 0xd8, 0x001520C2, 0x010, 0x10000, 0x200000), - FLASH_ID("mac 25l3205" , 0xd8, 0x001620C2, 0x100, 0x10000, 0x400000), - FLASH_ID("mac 25l3205a" , 0xd8, 0x001620C2, 0x100, 0x10000, 0x400000), - FLASH_ID("mac 25l6405" , 0xd8, 0x001720C2, 0x100, 0x10000, 0x800000), - FLASH_ID("wbd w25q128" , 0xd8, 0x001840EF, 0x100, 0x10000, 0x1000000), -}; - -/* - * smi_wait_xfer_finish - Wait until TFF is set in status register - * @timeout: timeout in milliseconds - * - * Wait until TFF is set in status register - */ -static int smi_wait_xfer_finish(int timeout) -{ - ulong start = get_timer(0); - - while (get_timer(start) < timeout) { - if (readl(&smicntl->smi_sr) & TFF) - return 0; - - /* Try after 10 ms */ - udelay(10); - }; - - return -1; -} - -/* - * smi_read_id - Read flash id - * @info: flash_info structure pointer - * @banknum: bank number - * - * Read the flash id present at bank #banknum - */ -static unsigned int smi_read_id(flash_info_t *info, int banknum) -{ - unsigned int value; - - writel(readl(&smicntl->smi_cr1) | SW_MODE, &smicntl->smi_cr1); - writel(READ_ID, &smicntl->smi_tr); - writel((banknum << BANKSEL_SHIFT) | SEND | TX_LEN_1 | RX_LEN_3, - &smicntl->smi_cr2); - - if (smi_wait_xfer_finish(XFER_FINISH_TOUT)) - return -EIO; - - value = (readl(&smicntl->smi_rr) & 0x00FFFFFF); - - writel(readl(&smicntl->smi_sr) & ~TFF, &smicntl->smi_sr); - writel(readl(&smicntl->smi_cr1) & ~SW_MODE, &smicntl->smi_cr1); - - return value; -} - -/* - * flash_get_size - Detect the SMI flash by reading the ID. - * @base: Base address of the flash area bank #banknum - * @banknum: Bank number - * - * Detect the SMI flash by reading the ID. Initializes the flash_info structure - * with size, sector count etc. - */ -static ulong flash_get_size(ulong base, int banknum) -{ - flash_info_t *info = &flash_info[banknum]; - int value; - int i; - - value = smi_read_id(info, banknum); - - if (value < 0) { - printf("Flash id could not be read\n"); - return 0; - } - - /* Matches chip-id to entire list of 'serial-nor flash' ids */ - for (i = 0; i < ARRAY_SIZE(flash_devices); i++) { - if (flash_devices[i].device_id == value) { - info->size = flash_devices[i].size_in_bytes; - info->flash_id = value; - info->start[0] = base; - info->sector_count = - info->size/flash_devices[i].sectorsize; - - return info->size; - } - } - - return 0; -} - -/* - * smi_read_sr - Read status register of SMI - * @bank: bank number - * - * This routine will get the status register of the flash chip present at the - * given bank - */ -static int smi_read_sr(int bank) -{ - u32 ctrlreg1, val; - - /* store the CTRL REG1 state */ - ctrlreg1 = readl(&smicntl->smi_cr1); - - /* Program SMI in HW Mode */ - writel(readl(&smicntl->smi_cr1) & ~(SW_MODE | WB_MODE), - &smicntl->smi_cr1); - - /* Performing a RSR instruction in HW mode */ - writel((bank << BANKSEL_SHIFT) | RD_STATUS_REG, &smicntl->smi_cr2); - - if (smi_wait_xfer_finish(XFER_FINISH_TOUT)) - return -1; - - val = readl(&smicntl->smi_sr); - - /* Restore the CTRL REG1 state */ - writel(ctrlreg1, &smicntl->smi_cr1); - - return val; -} - -/* - * smi_wait_till_ready - Wait till last operation is over. - * @bank: bank number shifted. - * @timeout: timeout in milliseconds. - * - * This routine checks for WIP(write in progress)bit in Status register(SMSR-b0) - * The routine checks for #timeout loops, each at interval of 1 milli-second. - * If successful the routine returns 0. - */ -static int smi_wait_till_ready(int bank, int timeout) -{ - int sr; - ulong start = get_timer(0); - - /* One chip guarantees max 5 msec wait here after page writes, - but potentially three seconds (!) after page erase. */ - while (get_timer(start) < timeout) { - sr = smi_read_sr(bank); - if ((sr >= 0) && (!(sr & WIP_BIT))) - return 0; - - /* Try again after 10 usec */ - udelay(10); - } while (timeout--); - - printf("SMI controller is still in wait, timeout=%d\n", timeout); - return -EIO; -} - -/* - * smi_write_enable - Enable the flash to do write operation - * @bank: bank number - * - * Set write enable latch with Write Enable command. - * Returns negative if error occurred. - */ -static int smi_write_enable(int bank) -{ - u32 ctrlreg1; - u32 start; - int timeout = WMODE_TOUT; - int sr; - - /* Store the CTRL REG1 state */ - ctrlreg1 = readl(&smicntl->smi_cr1); - - /* Program SMI in H/W Mode */ - writel(readl(&smicntl->smi_cr1) & ~SW_MODE, &smicntl->smi_cr1); - - /* Give the Flash, Write Enable command */ - writel((bank << BANKSEL_SHIFT) | WE, &smicntl->smi_cr2); - - if (smi_wait_xfer_finish(XFER_FINISH_TOUT)) - return -1; - - /* Restore the CTRL REG1 state */ - writel(ctrlreg1, &smicntl->smi_cr1); - - start = get_timer(0); - while (get_timer(start) < timeout) { - sr = smi_read_sr(bank); - if ((sr >= 0) && (sr & (1 << (bank + WM_SHIFT)))) - return 0; - - /* Try again after 10 usec */ - udelay(10); - }; - - return -1; -} - -/* - * smi_init - SMI initialization routine - * - * SMI initialization routine. Sets SMI control register1. - */ -void smi_init(void) -{ - /* Setting the fast mode values. SMI working at 166/4 = 41.5 MHz */ - writel(HOLD1 | FAST_MODE | BANK_EN | DSEL_TIME | PRESCAL4, - &smicntl->smi_cr1); -} - -/* - * smi_sector_erase - Erase flash sector - * @info: flash_info structure pointer - * @sector: sector number - * - * Set write enable latch with Write Enable command. - * Returns negative if error occurred. - */ -static int smi_sector_erase(flash_info_t *info, unsigned int sector) -{ - int bank; - unsigned int sect_add; - unsigned int instruction; - - switch (info->start[0]) { - case SMIBANK0_BASE: - bank = BANK0; - break; - case SMIBANK1_BASE: - bank = BANK1; - break; - case SMIBANK2_BASE: - bank = BANK2; - break; - case SMIBANK3_BASE: - bank = BANK3; - break; - default: - return -1; - } - - sect_add = sector * (info->size / info->sector_count); - instruction = ((sect_add >> 8) & 0x0000FF00) | SECTOR_ERASE; - - writel(readl(&smicntl->smi_sr) & ~(ERF1 | ERF2), &smicntl->smi_sr); - - /* Wait until finished previous write command. */ - if (smi_wait_till_ready(bank, CONFIG_SYS_FLASH_ERASE_TOUT)) - return -EBUSY; - - /* Send write enable, before erase commands. */ - if (smi_write_enable(bank)) - return -EIO; - - /* Put SMI in SW mode */ - writel(readl(&smicntl->smi_cr1) | SW_MODE, &smicntl->smi_cr1); - - /* Send Sector Erase command in SW Mode */ - writel(instruction, &smicntl->smi_tr); - writel((bank << BANKSEL_SHIFT) | SEND | TX_LEN_4, - &smicntl->smi_cr2); - if (smi_wait_xfer_finish(XFER_FINISH_TOUT)) - return -EIO; - - if (smi_wait_till_ready(bank, CONFIG_SYS_FLASH_ERASE_TOUT)) - return -EBUSY; - - /* Put SMI in HW mode */ - writel(readl(&smicntl->smi_cr1) & ~SW_MODE, - &smicntl->smi_cr1); - - return 0; -} - -/* - * smi_write - Write to SMI flash - * @src_addr: source buffer - * @dst_addr: destination buffer - * @length: length to write in bytes - * @bank: bank base address - * - * Write to SMI flash - */ -static int smi_write(unsigned int *src_addr, unsigned int *dst_addr, - unsigned int length, ulong bank_addr) -{ - u8 *src_addr8 = (u8 *)src_addr; - u8 *dst_addr8 = (u8 *)dst_addr; - int banknum; - int i; - - switch (bank_addr) { - case SMIBANK0_BASE: - banknum = BANK0; - break; - case SMIBANK1_BASE: - banknum = BANK1; - break; - case SMIBANK2_BASE: - banknum = BANK2; - break; - case SMIBANK3_BASE: - banknum = BANK3; - break; - default: - return -1; - } - - if (smi_wait_till_ready(banknum, CONFIG_SYS_FLASH_WRITE_TOUT)) - return -EBUSY; - - /* Set SMI in Hardware Mode */ - writel(readl(&smicntl->smi_cr1) & ~SW_MODE, &smicntl->smi_cr1); - - if (smi_write_enable(banknum)) - return -EIO; - - /* Perform the write command */ - for (i = 0; i < length; i += 4) { - if (((ulong) (dst_addr) % SFLASH_PAGE_SIZE) == 0) { - if (smi_wait_till_ready(banknum, - CONFIG_SYS_FLASH_WRITE_TOUT)) - return -EBUSY; - - if (smi_write_enable(banknum)) - return -EIO; - } - - if (length < 4) { - int k; - - /* - * Handle special case, where length < 4 (redundant env) - */ - for (k = 0; k < length; k++) - *dst_addr8++ = *src_addr8++; - } else { - /* Normal 32bit write */ - *dst_addr++ = *src_addr++; - } - - if ((readl(&smicntl->smi_sr) & (ERF1 | ERF2))) - return -EIO; - } - - if (smi_wait_till_ready(banknum, CONFIG_SYS_FLASH_WRITE_TOUT)) - return -EBUSY; - - writel(readl(&smicntl->smi_sr) & ~(WCF), &smicntl->smi_sr); - - return 0; -} - -/* - * write_buff - Write to SMI flash - * @info: flash info structure - * @src: source buffer - * @dest_addr: destination buffer - * @length: length to write in words - * - * Write to SMI flash - */ -int write_buff(flash_info_t *info, uchar *src, ulong dest_addr, ulong length) -{ - return smi_write((unsigned int *)src, (unsigned int *)dest_addr, - length, info->start[0]); -} - -/* - * flash_init - SMI flash initialization - * - * SMI flash initialization - */ -unsigned long flash_init(void) -{ - unsigned long size = 0; - int i, j; - - smi_init(); - - for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; i++) { - flash_info[i].flash_id = FLASH_UNKNOWN; - size += flash_info[i].size = flash_get_size(bank_base[i], i); - } - - for (j = 0; j < CONFIG_SYS_MAX_FLASH_BANKS; j++) { - for (i = 1; i < flash_info[j].sector_count; i++) - flash_info[j].start[i] = - flash_info[j].start[i - 1] + - flash_info->size / flash_info->sector_count; - - } - - return size; -} - -/* - * flash_print_info - Print SMI flash information - * - * Print SMI flash information - */ -void flash_print_info(flash_info_t *info) -{ - int i; - if (info->flash_id == FLASH_UNKNOWN) { - puts("missing or unknown FLASH type\n"); - return; - } - - if (info->size >= 0x100000) - printf(" Size: %ld MB in %d Sectors\n", - info->size >> 20, info->sector_count); - else - printf(" Size: %ld KB in %d Sectors\n", - info->size >> 10, info->sector_count); - - puts(" Sector Start Addresses:"); - for (i = 0; i < info->sector_count; ++i) { -#ifdef CONFIG_SYS_FLASH_EMPTY_INFO - int size; - int erased; - u32 *flash; - - /* - * Check if whole sector is erased - */ - size = (info->size) / (info->sector_count); - flash = (u32 *) info->start[i]; - size = size / sizeof(int); - - while ((size--) && (*flash++ == ~0)) - ; - - size++; - if (size) - erased = 0; - else - erased = 1; - - if ((i % 5) == 0) - printf("\n"); - - printf(" %08lX%s%s", - info->start[i], - erased ? " E" : " ", info->protect[i] ? "RO " : " "); -#else - if ((i % 5) == 0) - printf("\n "); - printf(" %08lX%s", - info->start[i], info->protect[i] ? " (RO) " : " "); -#endif - } - putc('\n'); - return; -} - -/* - * flash_erase - Erase SMI flash - * - * Erase SMI flash - */ -int flash_erase(flash_info_t *info, int s_first, int s_last) -{ - int rcode = 0; - int prot = 0; - flash_sect_t sect; - - if ((s_first < 0) || (s_first > s_last)) { - puts("- no sectors to erase\n"); - return 1; - } - - for (sect = s_first; sect <= s_last; ++sect) { - if (info->protect[sect]) - prot++; - } - if (prot) { - printf("- Warning: %d protected sectors will not be erased!\n", - prot); - } else { - putc('\n'); - } - - for (sect = s_first; sect <= s_last; sect++) { - if (info->protect[sect] == 0) { - if (smi_sector_erase(info, sect)) - rcode = 1; - else - putc('.'); - } - } - puts(" done\n"); - return rcode; -} -#endif |