diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/block/ahci.c | 50 | ||||
| -rw-r--r-- | drivers/mtd/nand/omap_gpmc.c | 3 |
2 files changed, 33 insertions, 20 deletions
diff --git a/drivers/block/ahci.c b/drivers/block/ahci.c index c9a3beb..37d2d2a 100644 --- a/drivers/block/ahci.c +++ b/drivers/block/ahci.c @@ -137,6 +137,33 @@ static void sunxi_dma_init(volatile u8 *port_mmio) } #endif +int ahci_reset(u32 base) +{ + int i = 1000; + u32 host_ctl_reg = base + HOST_CTL; + u32 tmp = readl(host_ctl_reg); /* global controller reset */ + + if ((tmp & HOST_RESET) == 0) + writel_with_flush(tmp | HOST_RESET, host_ctl_reg); + + /* + * reset must complete within 1 second, or + * the hardware should be considered fried. + */ + do { + udelay(1000); + tmp = readl(host_ctl_reg); + i--; + } while ((i > 0) && (tmp & HOST_RESET)); + + if (i == 0) { + printf("controller reset failed (0x%x)\n", tmp); + return -1; + } + + return 0; +} + static int ahci_host_init(struct ahci_probe_ent *probe_ent) { #ifndef CONFIG_SCSI_AHCI_PLAT @@ -156,23 +183,9 @@ static int ahci_host_init(struct ahci_probe_ent *probe_ent) cap_save &= ((1 << 28) | (1 << 17)); cap_save |= (1 << 27); /* Staggered Spin-up. Not needed. */ - /* global controller reset */ - tmp = readl(mmio + HOST_CTL); - if ((tmp & HOST_RESET) == 0) - writel_with_flush(tmp | HOST_RESET, mmio + HOST_CTL); - - /* reset must complete within 1 second, or - * the hardware should be considered fried. - */ - i = 1000; - do { - udelay(1000); - tmp = readl(mmio + HOST_CTL); - if (!i--) { - debug("controller reset failed (0x%x)\n", tmp); - return -1; - } - } while (tmp & HOST_RESET); + ret = ahci_reset(probe_ent->mmio_base); + if (ret) + return ret; writel_with_flush(HOST_AHCI_EN, mmio + HOST_CTL); writel(cap_save, mmio + HOST_CAP); @@ -997,12 +1010,11 @@ static int ata_io_flush(u8 port) } -void scsi_bus_reset(void) +__weak void scsi_bus_reset(void) { /*Not implement*/ } - void scsi_print_error(ccb * pccb) { /*The ahci error info can be read in the ahci driver*/ diff --git a/drivers/mtd/nand/omap_gpmc.c b/drivers/mtd/nand/omap_gpmc.c index 93829a4..459904d 100644 --- a/drivers/mtd/nand/omap_gpmc.c +++ b/drivers/mtd/nand/omap_gpmc.c @@ -368,8 +368,9 @@ static int omap_correct_data_bch(struct mtd_info *mtd, uint8_t *dat, uint32_t error_loc[ELM_MAX_ERROR_COUNT]; enum bch_level bch_type; uint32_t i, ecc_flag = 0; - uint8_t count, err = 0; + uint8_t count; uint32_t byte_pos, bit_pos; + int err = 0; /* check calculated ecc */ for (i = 0; i < ecc->bytes && !ecc_flag; i++) { |