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author | Hauke Mehrtens <hauke@hauke-m.de> | 2012-02-12 16:38:10 +0000 |
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committer | Hauke Mehrtens <hauke@hauke-m.de> | 2012-02-12 16:38:10 +0000 |
commit | 838c363886ef34f847963eab88c56a31d163c5b0 (patch) | |
tree | 28480fbdfe27c3fd892c47ec179950d3e4d4512d /target/linux/brcm47xx/patches-3.2/0029-bcma-add-function-to-check-every-10-s-if-a-reg-is-se.patch | |
parent | c2e411fa8df2b8a53a00882ec1888d872a32c0ae (diff) | |
download | upstream-838c363886ef34f847963eab88c56a31d163c5b0.tar.gz upstream-838c363886ef34f847963eab88c56a31d163c5b0.tar.bz2 upstream-838c363886ef34f847963eab88c56a31d163c5b0.zip |
brcm47xx: update usb driver for brcm47xx.
SVN-Revision: 30480
Diffstat (limited to 'target/linux/brcm47xx/patches-3.2/0029-bcma-add-function-to-check-every-10-s-if-a-reg-is-se.patch')
-rw-r--r-- | target/linux/brcm47xx/patches-3.2/0029-bcma-add-function-to-check-every-10-s-if-a-reg-is-se.patch | 115 |
1 files changed, 0 insertions, 115 deletions
diff --git a/target/linux/brcm47xx/patches-3.2/0029-bcma-add-function-to-check-every-10-s-if-a-reg-is-se.patch b/target/linux/brcm47xx/patches-3.2/0029-bcma-add-function-to-check-every-10-s-if-a-reg-is-se.patch deleted file mode 100644 index bfdc7f21c6..0000000000 --- a/target/linux/brcm47xx/patches-3.2/0029-bcma-add-function-to-check-every-10-s-if-a-reg-is-se.patch +++ /dev/null @@ -1,115 +0,0 @@ -From 6e8ae6e2cee0e7e5939dc7042584c808366e61e0 Mon Sep 17 00:00:00 2001 -From: Hauke Mehrtens <hauke@hauke-m.de> -Date: Sun, 27 Nov 2011 14:01:01 +0100 -Subject: [PATCH 16/21] =?UTF-8?q?bcma:=20add=20function=20to=20check=20every?= - =?UTF-8?q?=2010=20=C2=B5s=20if=20a=20reg=20is=20set?= -MIME-Version: 1.0 -Content-Type: text/plain; charset=UTF-8 -Content-Transfer-Encoding: 8bit - -This function checks if a reg get set or cleared every 10 microseconds. -It is used in bcma_core_set_clockmode() and bcma_core_pll_ctl() to -reduce code duplication. In addition it is needed in the USB host -driver. - -Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> ---- - drivers/bcma/core.c | 48 ++++++++++++++++++++++++++++---------------- - include/linux/bcma/bcma.h | 2 + - 2 files changed, 32 insertions(+), 18 deletions(-) - ---- a/drivers/bcma/core.c -+++ b/drivers/bcma/core.c -@@ -52,11 +52,36 @@ int bcma_core_enable(struct bcma_device - } - EXPORT_SYMBOL_GPL(bcma_core_enable); - -+/* Wait for bitmask in a register to get set or cleared. -+ * timeout is in units of ten-microseconds. -+ */ -+int bcma_wait_bits(struct bcma_device *dev, u16 reg, u32 bitmask, int timeout, -+ int set) -+{ -+ int i; -+ u32 val; -+ -+ for (i = 0; i < timeout; i++) { -+ val = bcma_read32(dev, reg); -+ if (set) { -+ if ((val & bitmask) == bitmask) -+ return 0; -+ } else { -+ if (!(val & bitmask)) -+ return 0; -+ } -+ udelay(10); -+ } -+ pr_err("Timeout waiting for bitmask %08X on register %04X to %s.\n", -+ bitmask, reg, (set ? "set" : "clear")); -+ -+ return -ETIMEDOUT; -+} -+EXPORT_SYMBOL_GPL(bcma_wait_bits); -+ - void bcma_core_set_clockmode(struct bcma_device *core, - enum bcma_clkmode clkmode) - { -- u16 i; -- - WARN_ON(core->id.id != BCMA_CORE_CHIPCOMMON && - core->id.id != BCMA_CORE_PCIE && - core->id.id != BCMA_CORE_80211); -@@ -65,15 +90,8 @@ void bcma_core_set_clockmode(struct bcma - case BCMA_CLKMODE_FAST: - bcma_set32(core, BCMA_CLKCTLST, BCMA_CLKCTLST_FORCEHT); - udelay(64); -- for (i = 0; i < 1500; i++) { -- if (bcma_read32(core, BCMA_CLKCTLST) & -- BCMA_CLKCTLST_HAVEHT) { -- i = 0; -- break; -- } -- udelay(10); -- } -- if (i) -+ if (bcma_wait_bits(core, BCMA_CLKCTLST, BCMA_CLKCTLST_HAVEHT, -+ 1500, 1)) - pr_err("HT force timeout\n"); - break; - case BCMA_CLKMODE_DYNAMIC: -@@ -85,22 +103,12 @@ EXPORT_SYMBOL_GPL(bcma_core_set_clockmod - - void bcma_core_pll_ctl(struct bcma_device *core, u32 req, u32 status, bool on) - { -- u16 i; -- - WARN_ON(req & ~BCMA_CLKCTLST_EXTRESREQ); - WARN_ON(status & ~BCMA_CLKCTLST_EXTRESST); - - if (on) { - bcma_set32(core, BCMA_CLKCTLST, req); -- for (i = 0; i < 10000; i++) { -- if ((bcma_read32(core, BCMA_CLKCTLST) & status) == -- status) { -- i = 0; -- break; -- } -- udelay(10); -- } -- if (i) -+ if (bcma_wait_bits(core, BCMA_CLKCTLST, status, 10000, 1)) - pr_err("PLL enable timeout\n"); - } else { - pr_warn("Disabling PLL not supported yet!\n"); ---- a/include/linux/bcma/bcma.h -+++ b/include/linux/bcma/bcma.h -@@ -283,6 +283,9 @@ static inline void bcma_maskset16(struct - bcma_write16(cc, offset, (bcma_read16(cc, offset) & mask) | set); - } - -+extern int bcma_wait_bits(struct bcma_device *dev, u16 reg, u32 bitmask, -+ int timeout, int set); -+ - extern bool bcma_core_is_enabled(struct bcma_device *core); - extern void bcma_core_disable(struct bcma_device *core, u32 flags); - extern int bcma_core_enable(struct bcma_device *core, u32 flags); |