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author | Gleb Natapov <gleb@redhat.com> | 2013-10-17 17:04:47 +0300 |
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committer | Gleb Natapov <gleb@redhat.com> | 2013-10-17 17:41:49 +0300 |
commit | 13acfd5715144518232d8e29acf7c76ef1b089d8 (patch) | |
tree | 093c4311a737210bbdd3d1919f8193cb5f017241 /drivers/mtd | |
parent | d570142674890fe10b3d7d86aa105e3dfce1ddfa (diff) | |
parent | 34ec4de42be5006abdd8d0c08b306ffaa64d0d5d (diff) | |
download | linux-13acfd5715144518232d8e29acf7c76ef1b089d8.tar.bz2 |
Powerpc KVM work is based on a commit after rc4.
Merging master into next to satisfy the dependencies.
Conflicts:
arch/arm/kvm/reset.c
Diffstat (limited to 'drivers/mtd')
-rw-r--r-- | drivers/mtd/devices/m25p80.c | 17 | ||||
-rw-r--r-- | drivers/mtd/nand/nand_base.c | 8 |
2 files changed, 18 insertions, 7 deletions
diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c index 26b14f9fcac6..6bc9618af094 100644 --- a/drivers/mtd/devices/m25p80.c +++ b/drivers/mtd/devices/m25p80.c @@ -168,12 +168,25 @@ static inline int write_disable(struct m25p *flash) */ static inline int set_4byte(struct m25p *flash, u32 jedec_id, int enable) { + int status; + bool need_wren = false; + switch (JEDEC_MFR(jedec_id)) { - case CFI_MFR_MACRONIX: case CFI_MFR_ST: /* Micron, actually */ + /* Some Micron need WREN command; all will accept it */ + need_wren = true; + case CFI_MFR_MACRONIX: case 0xEF /* winbond */: + if (need_wren) + write_enable(flash); + flash->command[0] = enable ? OPCODE_EN4B : OPCODE_EX4B; - return spi_write(flash->spi, flash->command, 1); + status = spi_write(flash->spi, flash->command, 1); + + if (need_wren) + write_disable(flash); + + return status; default: /* Spansion style */ flash->command[0] = OPCODE_BRWR; diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 7ed4841327f2..d340b2f198c6 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -2869,10 +2869,8 @@ static int nand_flash_detect_ext_param_page(struct mtd_info *mtd, len = le16_to_cpu(p->ext_param_page_length) * 16; ep = kmalloc(len, GFP_KERNEL); - if (!ep) { - ret = -ENOMEM; - goto ext_out; - } + if (!ep) + return -ENOMEM; /* Send our own NAND_CMD_PARAM. */ chip->cmdfunc(mtd, NAND_CMD_PARAM, 0, -1); @@ -2920,7 +2918,7 @@ static int nand_flash_detect_ext_param_page(struct mtd_info *mtd, } pr_info("ONFI extended param page detected.\n"); - return 0; + ret = 0; ext_out: kfree(ep); |