1 2menuconfig NAND 3 bool "NAND Device Support" 4if NAND 5 6config SYS_NAND_SELF_INIT 7 bool 8 help 9 This option, if enabled, provides more flexible and linux-like 10 NAND initialization process. 11 12config NAND_DENALI 13 bool "Support Denali NAND controller" 14 select SYS_NAND_SELF_INIT 15 imply CMD_NAND 16 help 17 Enable support for the Denali NAND controller. 18 19config NAND_DENALI_DT 20 bool "Support Denali NAND controller as a DT device" 21 depends on NAND_DENALI && OF_CONTROL && DM 22 help 23 Enable the driver for NAND flash on platforms using a Denali NAND 24 controller as a DT device. 25 26config SYS_NAND_DENALI_64BIT 27 bool "Use 64-bit variant of Denali NAND controller" 28 depends on NAND_DENALI 29 help 30 The Denali NAND controller IP has some variations in terms of 31 the bus interface. The DMA setup sequence is completely differenct 32 between 32bit / 64bit AXI bus variants. 33 34 If your Denali NAND controller is the 64-bit variant, say Y. 35 Otherwise (32 bit), say N. 36 37config NAND_DENALI_SPARE_AREA_SKIP_BYTES 38 int "Number of bytes skipped in OOB area" 39 depends on NAND_DENALI 40 range 0 63 41 help 42 This option specifies the number of bytes to skip from the beginning 43 of OOB area before last ECC sector data starts. This is potentially 44 used to preserve the bad block marker in the OOB area. 45 46config NAND_OMAP_GPMC 47 bool "Support OMAP GPMC NAND controller" 48 depends on ARCH_OMAP2PLUS 49 help 50 Enables omap_gpmc.c driver for OMAPx and AMxxxx platforms. 51 GPMC controller is used for parallel NAND flash devices, and can 52 do ECC calculation (not ECC error detection) for HAM1, BCH4, BCH8 53 and BCH16 ECC algorithms. 54 55config NAND_OMAP_GPMC_PREFETCH 56 bool "Enable GPMC Prefetch" 57 depends on NAND_OMAP_GPMC 58 help 59 On OMAP platforms that use the GPMC controller 60 (CONFIG_NAND_OMAP_GPMC_PREFETCH), this options enables the code that 61 uses the prefetch mode to speed up read operations. 62 63config NAND_OMAP_ELM 64 bool "Enable ELM driver for OMAPxx and AMxx platforms." 65 depends on NAND_OMAP_GPMC && !OMAP34XX 66 help 67 ELM controller is used for ECC error detection (not ECC calculation) 68 of BCH4, BCH8 and BCH16 ECC algorithms. 69 Some legacy platforms like OMAP3xx do not have in-built ELM h/w engine, 70 thus such SoC platforms need to depend on software library for ECC error 71 detection. However ECC calculation on such plaforms would still be 72 done by GPMC controller. 73 74config NAND_VF610_NFC 75 bool "Support for Freescale NFC for VF610" 76 select SYS_NAND_SELF_INIT 77 imply CMD_NAND 78 help 79 Enables support for NAND Flash Controller on some Freescale 80 processors like the VF610, MCF54418 or Kinetis K70. 81 The driver supports a maximum 2k page size. The driver 82 currently does not support hardware ECC. 83 84choice 85 prompt "Hardware ECC strength" 86 depends on NAND_VF610_NFC 87 default SYS_NAND_VF610_NFC_45_ECC_BYTES 88 help 89 Select the ECC strength used in the hardware BCH ECC block. 90 91config SYS_NAND_VF610_NFC_45_ECC_BYTES 92 bool "24-error correction (45 ECC bytes)" 93 94config SYS_NAND_VF610_NFC_60_ECC_BYTES 95 bool "32-error correction (60 ECC bytes)" 96 97endchoice 98 99config NAND_PXA3XX 100 bool "Support for NAND on PXA3xx and Armada 370/XP/38x" 101 select SYS_NAND_SELF_INIT 102 imply CMD_NAND 103 help 104 This enables the driver for the NAND flash device found on 105 PXA3xx processors (NFCv1) and also on Armada 370/XP (NFCv2). 106 107config NAND_ROCKCHIP 108 bool "Support for NAND on Rockchip SoCs" 109 select SYS_NAND_SELF_INIT 110 default n 111 ---help--- 112 Enable support for Rockchip nand. 113 114config NAND_ROCKCHIP_V9 115 bool "Support for NAND V9 on Rockchip SoCs" 116 select SYS_NAND_SELF_INIT 117 default n 118 ---help--- 119 Enable support for Rockchip nand v9. 120 121if NAND_ROCKCHIP || NAND_ROCKCHIP_V9 122config NAND_ROCKCHIP_DT 123 bool "Support Rockchip NAND controller as a DT device" 124 default y 125 help 126 Enable the driver for Rockchip NAND flash on platforms 127 using device tree. 128endif 129 130config NAND_SUNXI 131 bool "Support for NAND on Allwinner SoCs" 132 depends on MACH_SUN4I || MACH_SUN5I || MACH_SUN7I 133 select SYS_NAND_SELF_INIT 134 select SYS_NAND_U_BOOT_LOCATIONS 135 imply CMD_NAND 136 ---help--- 137 Enable support for NAND. This option enables the standard and 138 SPL drivers. 139 The SPL driver only supports reading from the NAND using DMA 140 transfers. 141 142if NAND_SUNXI 143 144config NAND_SUNXI_SPL_ECC_STRENGTH 145 int "Allwinner NAND SPL ECC Strength" 146 default 64 147 148config NAND_SUNXI_SPL_ECC_SIZE 149 int "Allwinner NAND SPL ECC Step Size" 150 default 1024 151 152config NAND_SUNXI_SPL_USABLE_PAGE_SIZE 153 int "Allwinner NAND SPL Usable Page Size" 154 default 1024 155 156endif 157 158config NAND_ARASAN 159 bool "Configure Arasan Nand" 160 imply CMD_NAND 161 help 162 This enables Nand driver support for Arasan nand flash 163 controller. This uses the hardware ECC for read and 164 write operations. 165 166config NAND_MXC 167 bool "MXC NAND support" 168 depends on CPU_ARM926EJS || CPU_ARM1136 || MX5 169 imply CMD_NAND 170 help 171 This enables the NAND driver for the NAND flash controller on the 172 i.MX27 / i.MX31 / i.MX5 rocessors. 173 174config NAND_MXS 175 bool "MXS NAND support" 176 depends on MX6 || MX7 177 imply CMD_NAND 178 help 179 This enables NAND driver for the NAND flash controller on the 180 MXS processors. 181 182config NAND_ZYNQ 183 bool "Support for Zynq Nand controller" 184 select SYS_NAND_SELF_INIT 185 imply CMD_NAND 186 help 187 This enables Nand driver support for Nand flash controller 188 found on Zynq SoC. 189 190comment "Generic NAND options" 191 192# Enhance depends when converting drivers to Kconfig which use this config 193# option (mxc_nand, ndfc, omap_gpmc). 194config SYS_NAND_BUSWIDTH_16BIT 195 bool "Use 16-bit NAND interface" 196 depends on NAND_VF610_NFC || NAND_OMAP_GPMC || NAND_MXC || ARCH_DAVINCI 197 help 198 Indicates that NAND device has 16-bit wide data-bus. In absence of this 199 config, bus-width of NAND device is assumed to be either 8-bit and later 200 determined by reading ONFI params. 201 Above config is useful when NAND device's bus-width information cannot 202 be determined from on-chip ONFI params, like in following scenarios: 203 - SPL boot does not support reading of ONFI parameters. This is done to 204 keep SPL code foot-print small. 205 - In current U-Boot flow using nand_init(), driver initialization 206 happens in board_nand_init() which is called before any device probe 207 (nand_scan_ident + nand_scan_tail), thus device's ONFI parameters are 208 not available while configuring controller. So a static CONFIG_NAND_xx 209 is needed to know the device's bus-width in advance. 210 211if SPL 212 213config SYS_NAND_U_BOOT_LOCATIONS 214 bool "Define U-boot binaries locations in NAND" 215 help 216 Enable CONFIG_SYS_NAND_U_BOOT_OFFS though Kconfig. 217 This option should not be enabled when compiling U-boot for boards 218 defining CONFIG_SYS_NAND_U_BOOT_OFFS in their include/configs/<board>.h 219 file. 220 221config SYS_NAND_U_BOOT_OFFS 222 hex "Location in NAND to read U-Boot from" 223 default 0x800000 if NAND_SUNXI 224 depends on SYS_NAND_U_BOOT_LOCATIONS 225 help 226 Set the offset from the start of the nand where u-boot should be 227 loaded from. 228 229config SYS_NAND_U_BOOT_OFFS_REDUND 230 hex "Location in NAND to read U-Boot from" 231 default SYS_NAND_U_BOOT_OFFS 232 depends on SYS_NAND_U_BOOT_LOCATIONS 233 help 234 Set the offset from the start of the nand where the redundant u-boot 235 should be loaded from. 236 237config SPL_NAND_AM33XX_BCH 238 bool "Enables SPL-NAND driver which supports ELM based" 239 depends on NAND_OMAP_GPMC && !OMAP34XX 240 default y 241 help 242 Hardware ECC correction. This is useful for platforms which have ELM 243 hardware engine and use NAND boot mode. 244 Some legacy platforms like OMAP3xx do not have in-built ELM h/w engine, 245 so those platforms should use CONFIG_SPL_NAND_SIMPLE for enabling 246 SPL-NAND driver with software ECC correction support. 247 248config SPL_NAND_DENALI 249 bool "Support Denali NAND controller for SPL" 250 help 251 This is a small implementation of the Denali NAND controller 252 for use on SPL. 253 254config SPL_NAND_SIMPLE 255 bool "Use simple SPL NAND driver" 256 depends on !SPL_NAND_AM33XX_BCH 257 help 258 Support for NAND boot using simple NAND drivers that 259 expose the cmd_ctrl() interface. 260endif 261 262endif # if NAND 263