From ef3ac8ac17eac9d2041ea9c9e711a9b059412b59 Mon Sep 17 00:00:00 2001 From: Carl-Daniel Hailfinger Date: Sun, 3 Aug 2014 13:05:34 +0000 Subject: Refactor unlocking of many chips with locking at register space address +2 This includes PMC Pm49*, SST 49LF00*, ST M50* and Winbond W39* families. The erase and write test status bits of all affected chips have been reset. Corresponding to flashrom svn r1833. Signed-off-by: Carl-Daniel Hailfinger Signed-off-by: Stefan Tauner Acked-by: Stefan Tauner --- w39.c | 112 +++--------------------------------------------------------------- 1 file changed, 5 insertions(+), 107 deletions(-) (limited to 'w39.c') diff --git a/w39.c b/w39.c index 9dcb06a48..4dd366cbe 100644 --- a/w39.c +++ b/w39.c @@ -20,65 +20,7 @@ */ #include "flash.h" - -static int printlock_w39_fwh_block(struct flashctx *flash, unsigned int offset) -{ - chipaddr wrprotect = flash->virtual_registers + offset + 2; - uint8_t locking; - - locking = chip_readb(flash, wrprotect); - msg_cdbg("Lock status of block at 0x%08x is ", offset); - switch (locking & 0x7) { - case 0: - msg_cdbg("Full Access.\n"); - break; - case 1: - msg_cdbg("Write Lock (Default State).\n"); - break; - case 2: - msg_cdbg("Locked Open (Full Access, Lock Down).\n"); - break; - case 3: - msg_cerr("Error: Write Lock, Locked Down.\n"); - break; - case 4: - msg_cdbg("Read Lock.\n"); - break; - case 5: - msg_cdbg("Read/Write Lock.\n"); - break; - case 6: - msg_cerr("Error: Read Lock, Locked Down.\n"); - break; - case 7: - msg_cerr("Error: Read/Write Lock, Locked Down.\n"); - break; - } - - /* Read or write lock present? */ - return (locking & ((1 << 2) | (1 << 0))) ? -1 : 0; -} - -static int unlock_w39_fwh_block(struct flashctx *flash, unsigned int offset) -{ - chipaddr wrprotect = flash->virtual_registers + offset + 2; - uint8_t locking; - - locking = chip_readb(flash, wrprotect); - /* Read or write lock present? */ - if (locking & ((1 << 2) | (1 << 0))) { - /* Lockdown active? */ - if (locking & (1 << 1)) { - msg_cerr("Can't unlock block at 0x%08x!\n", offset); - return -1; - } else { - msg_cdbg("Unlocking block at 0x%08x\n", offset); - chip_writeb(flash, 0, wrprotect); - } - } - - return 0; -} +#include "chipdrivers.h" static uint8_t w39_idmode_readb(struct flashctx *flash, unsigned int offset) { @@ -145,30 +87,6 @@ static int printlock_w39_common(struct flashctx *flash, unsigned int offset) return printlock_w39_tblwp(lock); } -static int printlock_w39_fwh(struct flashctx *flash) -{ - unsigned int i, total_size = flash->chip->total_size * 1024; - int ret = 0; - - /* Print lock status of the complete chip */ - for (i = 0; i < total_size; i += flash->chip->page_size) - ret |= printlock_w39_fwh_block(flash, i); - - return ret; -} - -static int unlock_w39_fwh(struct flashctx *flash) -{ - unsigned int i, total_size = flash->chip->total_size * 1024; - - /* Unlock the complete chip */ - for (i = 0; i < total_size; i += flash->chip->page_size) - if (unlock_w39_fwh_block(flash, i)) - return -1; - - return 0; -} - int printlock_w39f010(struct flashctx *flash) { uint8_t lock; @@ -267,7 +185,7 @@ int printlock_w39v040fa(struct flashctx *flash) int ret = 0; ret = printlock_w39v040a(flash); - ret |= printlock_w39_fwh(flash); + ret |= printlock_regspace2_uniform_64k(flash); return ret; } @@ -277,7 +195,7 @@ int printlock_w39v040fb(struct flashctx *flash) int ret = 0; ret = printlock_w39v040b(flash); - ret |= printlock_w39_fwh(flash); + ret |= printlock_regspace2_uniform_64k(flash); return ret; } @@ -288,7 +206,7 @@ int printlock_w39v040fc(struct flashctx *flash) /* W39V040C and W39V040FC use different WP/TBL offsets. */ ret = printlock_w39_common(flash, 0x7fff2); - ret |= printlock_w39_fwh(flash); + ret |= printlock_regspace2_uniform_64k(flash); return ret; } @@ -303,7 +221,7 @@ int printlock_w39v080fa(struct flashctx *flash) int ret = 0; ret = printlock_w39v080a(flash); - ret |= printlock_w39_fwh(flash); + ret |= printlock_regspace2_uniform_64k(flash); return ret; } @@ -316,26 +234,6 @@ int printlock_w39v080fa_dual(struct flashctx *flash) return -1; } -int unlock_w39v040fb(struct flashctx *flash) -{ - if (unlock_w39_fwh(flash)) - return -1; - if (printlock_w39_common(flash, 0x7fff2)) - return -1; - - return 0; -} - -int unlock_w39v080fa(struct flashctx *flash) -{ - if (unlock_w39_fwh(flash)) - return -1; - if (printlock_w39_common(flash, 0xffff2)) - return -1; - - return 0; -} - int printlock_at49f(struct flashctx *flash) { uint8_t lock = w39_idmode_readb(flash, 0x00002); -- cgit v1.2.3