git.openwrt.org Git - openwrt/staging/svanheule.git/blob

   1 From 65a6669afc667dacacf24a3a3f340205e38b0c5d Mon Sep 17 00:00:00 2001
   2 From: Yunhui Cui <yunhui.cui@nxp.com>
   3 Date: Fri, 27 May 2016 10:25:09 +0800
   4 Subject: [PATCH 37/93] driver: spi: remove Warning prints for Spansion FS-S
   5  fmaily
   6
   7 The Spansion flash FS-S family don't support the bank related
   8 commands, Even if flash size exceed 16MB, we cannot enable the
   9 macro CONFIG_SPI_FLASH_BAR. Also, we need remove the irrelevant
  10 warnings:
  11 "puts("SF: Warning - Only lower 16MiB accessible,"
  12 "Full access #define CONFIG_SPI_FLASH_BAR"
  13
  14 Signed-off-by: Yunhui Cui <yunhui.cui@nxp.com>
  15 ---
  16  drivers/mtd/spi/spi_flash.c |   13 +++++++++----
  17  1 file changed, 9 insertions(+), 4 deletions(-)
  18
  19 diff --git a/drivers/mtd/spi/spi_flash.c b/drivers/mtd/spi/spi_flash.c
  20 index e9d1c64..b0f09ab 100644
  21 --- a/drivers/mtd/spi/spi_flash.c
  22 +++ b/drivers/mtd/spi/spi_flash.c
  23 @@ -1009,6 +1009,9 @@ int spi_flash_scan(struct spi_flash *flash)
  24         u8 idcode[5];
  25         u8 cmd;
  26         int ret;
  27 +#ifdef CONFIG_SPI_FLASH_SPANSION
  28 +       u8 id[6];
  29 +#endif
  30
  31         /* Read the ID codes */
  32         ret = spi_flash_cmd(spi, CMD_READ_ID, idcode, sizeof(idcode));
  33 @@ -1062,7 +1065,6 @@ int spi_flash_scan(struct spi_flash *flash)
  34         if ((jedec == 0x0219 || (jedec == 0x0220)) &&
  35             (ext_jedec & 0xff00) == 0x4d00) {
  36                 int ret;
  37 -               u8 id[6];
  38
  39                 /* Read the ID codes again, 6 bytes */
  40                 ret = spi_flash_cmd(flash->spi, CMD_READ_ID, id, sizeof(id));
  41 @@ -1253,10 +1255,13 @@ int spi_flash_scan(struct spi_flash *flash)
  42  #endif
  43
  44  #ifndef CONFIG_SPI_FLASH_BAR
  45 -       if (((flash->dual_flash == SF_SINGLE_FLASH) &&
  46 -            (flash->size > SPI_FLASH_16MB_BOUN)) ||
  47 +       if ((id[5] != 0x81) &&
  48 +       /*Spansion FS-S family not support BAR ,
  49 +       Even if CONFIG_SPI_FLASH_BAR is unable,  Need not the Warning prints */
  50 +            ((((flash->dual_flash == SF_SINGLE_FLASH) &&
  51 +            (flash->size > SPI_FLASH_16MB_BOUN))) ||
  52              ((flash->dual_flash > SF_SINGLE_FLASH) &&
  53 -            (flash->size > SPI_FLASH_16MB_BOUN << 1))) {
  54 +            (flash->size > SPI_FLASH_16MB_BOUN << 1)))) {
  55                 puts("SF: Warning - Only lower 16MiB accessible,");
  56                 puts(" Full access #define CONFIG_SPI_FLASH_BAR\n");
  57         }
  58 --
  59 1.7.9.5
  60