nuke obsolete kernel stuff

SVN-Revision: 14875

1 files changed, 0 insertions, 261 deletions

diff --git a/target/linux/s3c24xx/patches-2.6.24/1292-fix-glamo-mci-slow-clock-until-first-bulk.patch.patch b/target/linux/s3c24xx/patches-2.6.24/1292-fix-glamo-mci-slow-clock-until-first-bulk.patch.patch
deleted file mode 100644
index 642f5454ee..0000000000
--- a/target/linux/s3c24xx/patches-2.6.24/1292-fix-glamo-mci-slow-clock-until-first-bulk.patch.patch
+++ /dev/null
@@ -1,261 +0,0 @@
-From 9e7ba57b104e9293f746342b7450b10d5fa0c4cd Mon Sep 17 00:00:00 2001
-From: Andy Green <andy@openmoko.com>
-Date: Mon, 22 Sep 2008 22:38:03 +0100
-Subject: [PATCH] fix-glamo-mci-slow-clock-until-first-bulk.patch
-
-This patch adds another module parameter to glamo-mci which sets the
-SD Card clock rate used inbetween powering the card and the completion of
-the first bulk transfer.  You can set it from kernel commandline like this.
-
-glamo_mci.sd_post_power_clock=1000000
-
-The period between changing the power state and the first bulk transfer
-completion is critical because larger SDHC cards take longer to initialize
-before they can service the bulk transfer, and the Glamo MMC unit has a
-fixed timeout length of a maximum of 4095 x 16 x SD Card clocks.  Large
-cards like 8GB Sandisk SDHC are not ready before this timeout is used up
-at default 16MHz.
-
-Subsequently, the card can handle 16MHz SD Clock and timeout durations
-okay.
-
-By default this patch operates the SD Clock at only 1MHz until the first
-bulk transfer is completed after each powerup action from the MCI stack.  It
-also keeps the SD Clock running during this time, and disables the SD Clock
-if the card is not present and the MCI stack removes power.
-
-Signed-off-by: Andy Green <andy@openmoko.com>
----
- drivers/mfd/glamo/glamo-mci.c |  108 +++++++++++++++++++++++++----------------
- drivers/mfd/glamo/glamo-mci.h |    2 +
- 2 files changed, 68 insertions(+), 42 deletions(-)
-
-diff --git a/drivers/mfd/glamo/glamo-mci.c b/drivers/mfd/glamo/glamo-mci.c
-index 3eece08..cff43db 100644
---- a/drivers/mfd/glamo/glamo-mci.c
-+++ b/drivers/mfd/glamo/glamo-mci.c
-@@ -74,6 +74,23 @@ static int sd_slow_ratio = 8;
- module_param(sd_slow_ratio, int, 0644);
- 
- /*
-+ * Post-power SD clock rate
-+ *
-+ * you can override this on kernel commandline using
-+ *
-+ *   glamo_mci.sd_post_power_clock=1000000
-+ *
-+ * for example
-+ *
-+ * After changing power to card, clock is held at this rate until first bulk
-+ * transfer completes
-+ */
-+
-+static int sd_post_power_clock = 1000000;
-+module_param(sd_post_power_clock, int, 0644);
-+
-+
-+/*
-  * SD Signal drive strength
-  *
-  * you can override this on kernel commandline using
-@@ -240,21 +257,35 @@ static void __glamo_mci_fix_card_div(struct glamo_mci_host *host, int div)
- 		writew(readw(glamo_mci_def_pdata.pglamo->base +
- 		     GLAMO_REG_CLOCK_GEN5_1) & (~GLAMO_CLOCK_GEN51_EN_DIV_TCLK),
- 		     glamo_mci_def_pdata.pglamo->base + GLAMO_REG_CLOCK_GEN5_1);
--	} else {
--		/* set the nearest prescaler factor
--		*
--		* register shared with SCLK divisor -- no chance of race because
--		* we don't use sensor interface
--		*/
--		writew_dly((readw(glamo_mci_def_pdata.pglamo->base +
--				GLAMO_REG_CLOCK_GEN8) & 0xff00) | div,
--		       glamo_mci_def_pdata.pglamo->base + GLAMO_REG_CLOCK_GEN8);
--		/* enable clock to divider input */
--		writew_dly(readw(glamo_mci_def_pdata.pglamo->base +
--			GLAMO_REG_CLOCK_GEN5_1) | GLAMO_CLOCK_GEN51_EN_DIV_TCLK,
--		     glamo_mci_def_pdata.pglamo->base + GLAMO_REG_CLOCK_GEN5_1);
-+
-+		goto done;
- 	}
- 
-+	if (host->force_slow_during_powerup)
-+		div = host->clk_rate / sd_post_power_clock;
-+	else
-+		if (host->pdata->glamo_mci_use_slow)
-+			if ((host->pdata->glamo_mci_use_slow)())
-+				div = div * sd_slow_ratio;
-+
-+	if (div > 255)
-+		div = 255;
-+
-+	/*
-+	 * set the nearest prescaler factor
-+	 *
-+	 * register shared with SCLK divisor -- no chance of race because
-+	 * we don't use sensor interface
-+	 */
-+	writew_dly((readw(glamo_mci_def_pdata.pglamo->base +
-+			GLAMO_REG_CLOCK_GEN8) & 0xff00) | div,
-+		glamo_mci_def_pdata.pglamo->base + GLAMO_REG_CLOCK_GEN8);
-+	/* enable clock to divider input */
-+	writew_dly(readw(glamo_mci_def_pdata.pglamo->base +
-+		GLAMO_REG_CLOCK_GEN5_1) | GLAMO_CLOCK_GEN51_EN_DIV_TCLK,
-+		glamo_mci_def_pdata.pglamo->base + GLAMO_REG_CLOCK_GEN5_1);
-+
-+done:
- 	spin_unlock_irqrestore(&clock_lock, flags);
- }
- 
-@@ -284,7 +315,7 @@ static int __glamo_mci_set_card_clock(struct glamo_mci_host *host, int freq,
- 		if (division)
- 			*division = 0xff;
- 
--		if (!sd_idleclk)
-+		if (!sd_idleclk && !host->force_slow_during_powerup)
- 			/* clock off */
- 			__glamo_mci_fix_card_div(host, -1);
- 	}
-@@ -327,6 +358,10 @@ static void glamo_mci_irq(unsigned int irq, struct irq_desc *desc)
- 		goto done;
- 	}
- 
-+	/* disable the initial slow start after first bulk transfer */
-+	if (host->force_slow_during_powerup)
-+		host->force_slow_during_powerup--;
-+
- 	if (host->pio_active == XFER_READ)
- 		do_pio_read(host);
- 
-@@ -341,7 +376,7 @@ static void glamo_mci_irq(unsigned int irq, struct irq_desc *desc)
- 		host->cmd_is_stop = 0;
- 	}
- 
--	if (!sd_idleclk)
-+	if (!sd_idleclk && !host->force_slow_during_powerup)
- 		/* clock off */
- 		__glamo_mci_fix_card_div(host, -1);
- 
-@@ -357,7 +392,6 @@ static int glamo_mci_send_command(struct glamo_mci_host *host,
- {
- 	u8 u8a[6];
- 	u16 fire = 0;
--	u16 timeout = 0xfff; /* max glamo MMC timeout, in units of 16 clocks */
- 
- 	/* if we can't do it, reject as busy */
- 	if (!readw_dly(host->base + GLAMO_REG_MMC_RB_STAT1) &
-@@ -467,15 +501,9 @@ static int glamo_mci_send_command(struct glamo_mci_host *host,
- 		fire |= GLAMO_FIRE_MMC_CC_BASIC; /* "basic command" */
- 		break;
- 	}
--	/* enforce timeout, clipping at default 65520 clocks if larger */
--	if (cmd->data)
--		/* so long as there is one... */
--		if (cmd->data->timeout_clks &&
--		    /* ... and it is not longer than we can handle */
--		    (cmd->data->timeout_clks <= 0xffff))
--			timeout = cmd->data->timeout_clks >> 4; /* / 16 clks */
- 
--	writew(timeout, host->base + GLAMO_REG_MMC_TIMEOUT);
-+	/* always largest timeout */
-+	writew(0xfff, host->base + GLAMO_REG_MMC_TIMEOUT);
- 
- 	/* Generate interrupt on txfer */
- 	writew_dly((readw_dly(host->base + GLAMO_REG_MMC_BASIC) & 0x3e) |
-@@ -576,14 +604,7 @@ static void glamo_mci_send_request(struct mmc_host *mmc)
- 	/* resume requested clock rate
- 	 * scale it down by sd_slow_ratio if platform requests it
- 	 */
--	if (host->pdata->glamo_mci_use_slow)
--		if ((host->pdata->glamo_mci_use_slow)())
--			__glamo_mci_fix_card_div(host, host->clk_div *
--								 sd_slow_ratio);
--		else
--			__glamo_mci_fix_card_div(host, host->clk_div);
--	else
--		__glamo_mci_fix_card_div(host, host->clk_div);
-+	__glamo_mci_fix_card_div(host, host->clk_div);
- 
- 	if (glamo_mci_send_command(host, cmd))
- 		goto bail;
-@@ -633,6 +654,7 @@ static void glamo_mci_send_request(struct mmc_host *mmc)
- 		goto done;
- 	if (!(cmd->data->flags & (MMC_DATA_READ | MMC_DATA_WRITE)))
- 		goto done;
-+
- 	/*
- 	 * Otherwise can can use the interrupt as async completion --
- 	 * if there is read data coming, or we wait for write data to complete,
-@@ -676,7 +698,7 @@ done:
- 	host->mrq = NULL;
- 	mmc_request_done(host->mmc, cmd->mrq);
- bail:
--	if (!sd_idleclk)
-+	if (!sd_idleclk && !host->force_slow_during_powerup)
- 		/* stop the clock to card */
- 		__glamo_mci_fix_card_div(host, -1);
- }
-@@ -718,6 +740,12 @@ static void glamo_mci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
- 	switch(ios->power_mode) {
- 	case MMC_POWER_ON:
- 	case MMC_POWER_UP:
-+		/*
-+		 * we should use very slow clock until first bulk
-+		 * transfer completes OK
-+		 */
-+		host->force_slow_during_powerup = 1;
-+
- 		if (host->vdd_current != ios->vdd) {
- 			host->pdata->glamo_set_mci_power(ios->power_mode,
- 							 ios->vdd);
-@@ -734,6 +762,9 @@ static void glamo_mci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
- 	default:
- 		if (host->power_mode_current == MMC_POWER_OFF)
- 			break;
-+		/* never want clocking with dead card */
-+		__glamo_mci_fix_card_div(host, -1);
-+
- 		glamo_engine_disable(glamo_mci_def_pdata.pglamo,
- 				     GLAMO_ENGINE_MMC);
- 		host->pdata->glamo_set_mci_power(MMC_POWER_OFF, 0);
-@@ -751,7 +782,7 @@ static void glamo_mci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
- 	if (powering)
- 		msleep(1);
- 
--	if (!sd_idleclk)
-+	if (!sd_idleclk && !host->force_slow_during_powerup)
- 		/* stop the clock to card, because we are idle until transfer */
- 		__glamo_mci_fix_card_div(host, -1);
- 
-@@ -954,14 +985,7 @@ static int glamo_mci_suspend(struct platform_device *dev, pm_message_t state)
- 	 * make sure the clock was running during suspend and consequently
- 	 * resume
- 	 */
--	if (host->pdata->glamo_mci_use_slow)
--		if ((host->pdata->glamo_mci_use_slow)())
--			__glamo_mci_fix_card_div(host, host->clk_div *
--								 sd_slow_ratio);
--		else
--			__glamo_mci_fix_card_div(host, host->clk_div);
--	else
--		__glamo_mci_fix_card_div(host, host->clk_div);
-+	__glamo_mci_fix_card_div(host, host->clk_div);
- 
- 	/* we are going to do more commands to override this in
- 	 * mmc_suspend_host(), so we need to change sd_idleclk for the
-diff --git a/drivers/mfd/glamo/glamo-mci.h b/drivers/mfd/glamo/glamo-mci.h
-index f3f170e..38f6376 100644
---- a/drivers/mfd/glamo/glamo-mci.h
-+++ b/drivers/mfd/glamo/glamo-mci.h
-@@ -44,6 +44,8 @@ struct glamo_mci_host {
- 	unsigned long		real_rate;
- 	u8			prescaler;
- 
-+	int			force_slow_during_powerup;
-+
- 	unsigned		sdiimsk;
- 	int			dodma;
- 
--- 
-1.5.6.5
-