diff options
-rw-r--r-- | arch/arm/include/asm/hardware/sp810.h | 6 | ||||
-rw-r--r-- | arch/arm/include/asm/memory.h | 2 | ||||
-rw-r--r-- | arch/arm/kernel/smp_twd.c | 7 | ||||
-rw-r--r-- | arch/arm/mach-ep93xx/gpio.c | 7 | ||||
-rw-r--r-- | arch/arm/mach-realview/Kconfig | 49 | ||||
-rw-r--r-- | arch/arm/mach-realview/platsmp.c | 2 | ||||
-rw-r--r-- | arch/arm/mach-versatile/Kconfig | 10 | ||||
-rw-r--r-- | arch/arm/mach-vexpress/platsmp.c | 2 | ||||
-rw-r--r-- | arch/arm/mach-vexpress/v2m.c | 9 | ||||
-rw-r--r-- | drivers/mmc/host/mmci.c | 98 | ||||
-rw-r--r-- | drivers/mmc/host/mmci.h | 5 | ||||
-rw-r--r-- | sound/arm/aaci.c | 48 |
12 files changed, 107 insertions, 138 deletions
diff --git a/arch/arm/include/asm/hardware/sp810.h b/arch/arm/include/asm/hardware/sp810.h index a101f10bb5b..721847dc68a 100644 --- a/arch/arm/include/asm/hardware/sp810.h +++ b/arch/arm/include/asm/hardware/sp810.h @@ -50,6 +50,12 @@ #define SCPCELLID2 0xFF8 #define SCPCELLID3 0xFFC +#define SCCTRL_TIMEREN0SEL_REFCLK (0 << 15) +#define SCCTRL_TIMEREN0SEL_TIMCLK (1 << 15) + +#define SCCTRL_TIMEREN1SEL_REFCLK (0 << 17) +#define SCCTRL_TIMEREN1SEL_TIMCLK (1 << 17) + static inline void sysctl_soft_reset(void __iomem *base) { /* writing any value to SCSYSSTAT reg will reset system */ diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h index 23c2e8e5c0f..d0ee74b7cf8 100644 --- a/arch/arm/include/asm/memory.h +++ b/arch/arm/include/asm/memory.h @@ -188,7 +188,7 @@ * translation for translating DMA addresses. Use the driver * DMA support - see dma-mapping.h. */ -static inline unsigned long virt_to_phys(void *x) +static inline unsigned long virt_to_phys(const volatile void *x) { return __virt_to_phys((unsigned long)(x)); } diff --git a/arch/arm/kernel/smp_twd.c b/arch/arm/kernel/smp_twd.c index fd9156698ab..60636f499cb 100644 --- a/arch/arm/kernel/smp_twd.c +++ b/arch/arm/kernel/smp_twd.c @@ -36,6 +36,7 @@ static void twd_set_mode(enum clock_event_mode mode, /* timer load already set up */ ctrl = TWD_TIMER_CONTROL_ENABLE | TWD_TIMER_CONTROL_IT_ENABLE | TWD_TIMER_CONTROL_PERIODIC; + __raw_writel(twd_timer_rate / HZ, twd_base + TWD_TIMER_LOAD); break; case CLOCK_EVT_MODE_ONESHOT: /* period set, and timer enabled in 'next_event' hook */ @@ -81,7 +82,7 @@ int twd_timer_ack(void) static void __cpuinit twd_calibrate_rate(void) { - unsigned long load, count; + unsigned long count; u64 waitjiffies; /* @@ -116,10 +117,6 @@ static void __cpuinit twd_calibrate_rate(void) printk("%lu.%02luMHz.\n", twd_timer_rate / 1000000, (twd_timer_rate / 1000000) % 100); } - - load = twd_timer_rate / HZ; - - __raw_writel(load, twd_base + TWD_TIMER_LOAD); } /* diff --git a/arch/arm/mach-ep93xx/gpio.c b/arch/arm/mach-ep93xx/gpio.c index f3dc76fdcea..bec34b83495 100644 --- a/arch/arm/mach-ep93xx/gpio.c +++ b/arch/arm/mach-ep93xx/gpio.c @@ -427,6 +427,13 @@ void __init ep93xx_gpio_init(void) { int i; + /* Set Ports C, D, E, G, and H for GPIO use */ + ep93xx_devcfg_set_bits(EP93XX_SYSCON_DEVCFG_KEYS | + EP93XX_SYSCON_DEVCFG_GONK | + EP93XX_SYSCON_DEVCFG_EONIDE | + EP93XX_SYSCON_DEVCFG_GONIDE | + EP93XX_SYSCON_DEVCFG_HONIDE); + for (i = 0; i < ARRAY_SIZE(ep93xx_gpio_banks); i++) gpiochip_add(&ep93xx_gpio_banks[i].chip); } diff --git a/arch/arm/mach-realview/Kconfig b/arch/arm/mach-realview/Kconfig index b4575ae9648..7ca138a943a 100644 --- a/arch/arm/mach-realview/Kconfig +++ b/arch/arm/mach-realview/Kconfig @@ -2,52 +2,56 @@ menu "RealView platform type" depends on ARCH_REALVIEW config MACH_REALVIEW_EB - bool "Support RealView/EB platform" + bool "Support RealView(R) Emulation Baseboard" select ARM_GIC help - Include support for the ARM(R) RealView Emulation Baseboard platform. + Include support for the ARM(R) RealView(R) Emulation Baseboard + platform. config REALVIEW_EB_A9MP - bool "Support Multicore Cortex-A9" + bool "Support Multicore Cortex-A9 Tile" depends on MACH_REALVIEW_EB select CPU_V7 help - Enable support for the Cortex-A9MPCore tile on the Realview platform. + Enable support for the Cortex-A9MPCore tile fitted to the + Realview(R) Emulation Baseboard platform. config REALVIEW_EB_ARM11MP - bool "Support ARM11MPCore tile" + bool "Support ARM11MPCore Tile" depends on MACH_REALVIEW_EB select CPU_V6 select ARCH_HAS_BARRIERS if SMP help - Enable support for the ARM11MPCore tile on the Realview platform. + Enable support for the ARM11MPCore tile fitted to the Realview(R) + Emulation Baseboard platform. config REALVIEW_EB_ARM11MP_REVB - bool "Support ARM11MPCore RevB tile" + bool "Support ARM11MPCore RevB Tile" depends on REALVIEW_EB_ARM11MP help - Enable support for the ARM11MPCore RevB tile on the Realview - platform. Since there are device address differences, a - kernel built with this option enabled is not compatible with - other revisions of the ARM11MPCore tile. + Enable support for the ARM11MPCore Revision B tile on the + Realview(R) Emulation Baseboard platform. Since there are device + address differences, a kernel built with this option enabled is + not compatible with other revisions of the ARM11MPCore tile. config MACH_REALVIEW_PB11MP - bool "Support RealView/PB11MPCore platform" + bool "Support RealView(R) Platform Baseboard for ARM11MPCore" select CPU_V6 select ARM_GIC select HAVE_PATA_PLATFORM select ARCH_HAS_BARRIERS if SMP help - Include support for the ARM(R) RealView MPCore Platform Baseboard. - PB11MPCore is a platform with an on-board ARM11MPCore and has + Include support for the ARM(R) RealView(R) Platform Baseboard for + the ARM11MPCore. This platform has an on-board ARM11MPCore and has support for PCI-E and Compact Flash. config MACH_REALVIEW_PB1176 - bool "Support RealView/PB1176 platform" + bool "Support RealView(R) Platform Baseboard for ARM1176JZF-S" select CPU_V6 select ARM_GIC help - Include support for the ARM(R) RealView ARM1176 Platform Baseboard. + Include support for the ARM(R) RealView(R) Platform Baseboard for + ARM1176JZF-S. config REALVIEW_PB1176_SECURE_FLASH bool "Allow access to the secure flash memory block" @@ -59,23 +63,24 @@ config REALVIEW_PB1176_SECURE_FLASH block (64MB @ 0x3c000000) is required. config MACH_REALVIEW_PBA8 - bool "Support RealView/PB-A8 platform" + bool "Support RealView(R) Platform Baseboard for Cortex(tm)-A8 platform" select CPU_V7 select ARM_GIC select HAVE_PATA_PLATFORM help - Include support for the ARM(R) RealView Cortex-A8 Platform Baseboard. - PB-A8 is a platform with an on-board Cortex-A8 and has support for - PCI-E and Compact Flash. + Include support for the ARM(R) RealView Platform Baseboard for + Cortex(tm)-A8. This platform has an on-board Cortex-A8 and has + support for PCI-E and Compact Flash. config MACH_REALVIEW_PBX - bool "Support RealView/PBX platform" + bool "Support RealView(R) Platform Baseboard Explore" select ARM_GIC select HAVE_PATA_PLATFORM select ARCH_SPARSEMEM_ENABLE if CPU_V7 && !REALVIEW_HIGH_PHYS_OFFSET select ZONE_DMA if SPARSEMEM help - Include support for the ARM(R) RealView PBX platform. + Include support for the ARM(R) RealView(R) Platform Baseboard + Explore. config REALVIEW_HIGH_PHYS_OFFSET bool "High physical base address for the RealView platform" diff --git a/arch/arm/mach-realview/platsmp.c b/arch/arm/mach-realview/platsmp.c index a22bf67f2f7..6959d13d908 100644 --- a/arch/arm/mach-realview/platsmp.c +++ b/arch/arm/mach-realview/platsmp.c @@ -41,7 +41,7 @@ volatile int __cpuinitdata pen_release = -1; * observers, irrespective of whether they're taking part in coherency * or not. This is necessary for the hotplug code to work reliably. */ -static void write_pen_release(int val) +static void __cpuinit write_pen_release(int val) { pen_release = val; smp_wmb(); diff --git a/arch/arm/mach-versatile/Kconfig b/arch/arm/mach-versatile/Kconfig index 3f7b5e9d83c..9cdec5aa04a 100644 --- a/arch/arm/mach-versatile/Kconfig +++ b/arch/arm/mach-versatile/Kconfig @@ -2,17 +2,19 @@ menu "Versatile platform type" depends on ARCH_VERSATILE config ARCH_VERSATILE_PB - bool "Support Versatile/PB platform" + bool "Support Versatile Platform Baseboard for ARM926EJ-S" select CPU_ARM926T select MIGHT_HAVE_PCI default y help - Include support for the ARM(R) Versatile/PB platform. + Include support for the ARM(R) Versatile Platform Baseboard + for the ARM926EJ-S. config MACH_VERSATILE_AB - bool "Support Versatile/AB platform" + bool "Support Versatile Application Baseboard for ARM926EJ-S" select CPU_ARM926T help - Include support for the ARM(R) Versatile/AP platform. + Include support for the ARM(R) Versatile Application Baseboard + for the ARM926EJ-S. endmenu diff --git a/arch/arm/mach-vexpress/platsmp.c b/arch/arm/mach-vexpress/platsmp.c index b1687b6abe6..634bf1d3a31 100644 --- a/arch/arm/mach-vexpress/platsmp.c +++ b/arch/arm/mach-vexpress/platsmp.c @@ -39,7 +39,7 @@ volatile int __cpuinitdata pen_release = -1; * observers, irrespective of whether they're taking part in coherency * or not. This is necessary for the hotplug code to work reliably. */ -static void write_pen_release(int val) +static void __cpuinit write_pen_release(int val) { pen_release = val; smp_wmb(); diff --git a/arch/arm/mach-vexpress/v2m.c b/arch/arm/mach-vexpress/v2m.c index a9ed3428a2f..1edae65a0e7 100644 --- a/arch/arm/mach-vexpress/v2m.c +++ b/arch/arm/mach-vexpress/v2m.c @@ -19,6 +19,7 @@ #include <asm/mach/time.h> #include <asm/hardware/arm_timer.h> #include <asm/hardware/timer-sp.h> +#include <asm/hardware/sp810.h> #include <mach/motherboard.h> @@ -50,8 +51,16 @@ void __init v2m_map_io(struct map_desc *tile, size_t num) static void __init v2m_timer_init(void) { + u32 scctrl; + versatile_sched_clock_init(MMIO_P2V(V2M_SYS_24MHZ), 24000000); + /* Select 1MHz TIMCLK as the reference clock for SP804 timers */ + scctrl = readl(MMIO_P2V(V2M_SYSCTL + SCCTRL)); + scctrl |= SCCTRL_TIMEREN0SEL_TIMCLK; + scctrl |= SCCTRL_TIMEREN1SEL_TIMCLK; + writel(scctrl, MMIO_P2V(V2M_SYSCTL + SCCTRL)); + writel(0, MMIO_P2V(V2M_TIMER0) + TIMER_CTRL); writel(0, MMIO_P2V(V2M_TIMER1) + TIMER_CTRL); diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c index 56302282566..2de12fe155d 100644 --- a/drivers/mmc/host/mmci.c +++ b/drivers/mmc/host/mmci.c @@ -46,10 +46,6 @@ static unsigned int fmax = 515633; * is asserted (likewise for RX) * @fifohalfsize: number of bytes that can be written when MCI_TXFIFOHALFEMPTY * is asserted (likewise for RX) - * @broken_blockend: the MCI_DATABLOCKEND is broken on the hardware - * and will not work at all. - * @broken_blockend_dma: the MCI_DATABLOCKEND is broken on the hardware when - * using DMA. * @sdio: variant supports SDIO * @st_clkdiv: true if using a ST-specific clock divider algorithm */ @@ -59,8 +55,6 @@ struct variant_data { unsigned int datalength_bits; unsigned int fifosize; unsigned int fifohalfsize; - bool broken_blockend; - bool broken_blockend_dma; bool sdio; bool st_clkdiv; }; @@ -76,7 +70,6 @@ static struct variant_data variant_u300 = { .fifohalfsize = 8 * 4, .clkreg_enable = 1 << 13, /* HWFCEN */ .datalength_bits = 16, - .broken_blockend_dma = true, .sdio = true, }; @@ -86,7 +79,6 @@ static struct variant_data variant_ux500 = { .clkreg = MCI_CLK_ENABLE, .clkreg_enable = 1 << 14, /* HWFCEN */ .datalength_bits = 24, - .broken_blockend = true, .sdio = true, .st_clkdiv = true, }; @@ -210,8 +202,6 @@ static void mmci_start_data(struct mmci_host *host, struct mmc_data *data) host->data = data; host->size = data->blksz * data->blocks; host->data_xfered = 0; - host->blockend = false; - host->dataend = false; mmci_init_sg(host, data); @@ -288,21 +278,26 @@ static void mmci_data_irq(struct mmci_host *host, struct mmc_data *data, unsigned int status) { - struct variant_data *variant = host->variant; - /* First check for errors */ if (status & (MCI_DATACRCFAIL|MCI_DATATIMEOUT|MCI_TXUNDERRUN|MCI_RXOVERRUN)) { + u32 remain, success; + + /* Calculate how far we are into the transfer */ + remain = readl(host->base + MMCIDATACNT) << 2; + success = data->blksz * data->blocks - remain; + dev_dbg(mmc_dev(host->mmc), "MCI ERROR IRQ (status %08x)\n", status); - if (status & MCI_DATACRCFAIL) + if (status & MCI_DATACRCFAIL) { + /* Last block was not successful */ + host->data_xfered = ((success / data->blksz) - 1 * data->blksz); data->error = -EILSEQ; - else if (status & MCI_DATATIMEOUT) + } else if (status & MCI_DATATIMEOUT) { + host->data_xfered = success; data->error = -ETIMEDOUT; - else if (status & (MCI_TXUNDERRUN|MCI_RXOVERRUN)) + } else if (status & (MCI_TXUNDERRUN|MCI_RXOVERRUN)) { + host->data_xfered = success; data->error = -EIO; - - /* Force-complete the transaction */ - host->blockend = true; - host->dataend = true; + } /* * We hit an error condition. Ensure that any data @@ -321,61 +316,14 @@ mmci_data_irq(struct mmci_host *host, struct mmc_data *data, } } - /* - * On ARM variants in PIO mode, MCI_DATABLOCKEND - * is always sent first, and we increase the - * transfered number of bytes for that IRQ. Then - * MCI_DATAEND follows and we conclude the transaction. - * - * On the Ux500 single-IRQ variant MCI_DATABLOCKEND - * doesn't seem to immediately clear from the status, - * so we can't use it keep count when only one irq is - * used because the irq will hit for other reasons, and - * then the flag is still up. So we use the MCI_DATAEND - * IRQ at the end of the entire transfer because - * MCI_DATABLOCKEND is broken. - * - * In the U300, the IRQs can arrive out-of-order, - * e.g. MCI_DATABLOCKEND sometimes arrives after MCI_DATAEND, - * so for this case we use the flags "blockend" and - * "dataend" to make sure both IRQs have arrived before - * concluding the transaction. (This does not apply - * to the Ux500 which doesn't fire MCI_DATABLOCKEND - * at all.) In DMA mode it suffers from the same problem - * as the Ux500. - */ - if (status & MCI_DATABLOCKEND) { - /* - * Just being a little over-cautious, we do not - * use this progressive update if the hardware blockend - * flag is unreliable: since it can stay high between - * IRQs it will corrupt the transfer counter. - */ - if (!variant->broken_blockend) - host->data_xfered += data->blksz; - host->blockend = true; - } - - if (status & MCI_DATAEND) - host->dataend = true; + if (status & MCI_DATABLOCKEND) + dev_err(mmc_dev(host->mmc), "stray MCI_DATABLOCKEND interrupt\n"); - /* - * On variants with broken blockend we shall only wait for dataend, - * on others we must sync with the blockend signal since they can - * appear out-of-order. - */ - if (host->dataend && (host->blockend || variant->broken_blockend)) { + if (status & MCI_DATAEND) { mmci_stop_data(host); - /* Reset these flags */ - host->blockend = false; - host->dataend = false; - - /* - * Variants with broken blockend flags need to handle the - * end of the entire transfer here. - */ - if (variant->broken_blockend && !data->error) + if (!data->error) + /* The error clause is handled above, success! */ host->data_xfered += data->blksz * data->blocks; if (!data->stop) { @@ -770,7 +718,6 @@ static int __devinit mmci_probe(struct amba_device *dev, struct amba_id *id) struct variant_data *variant = id->data; struct mmci_host *host; struct mmc_host *mmc; - unsigned int mask; int ret; /* must have platform data */ @@ -951,12 +898,7 @@ static int __devinit mmci_probe(struct amba_device *dev, struct amba_id *id) goto irq0_free; } - mask = MCI_IRQENABLE; - /* Don't use the datablockend flag if it's broken */ - if (variant->broken_blockend) - mask &= ~MCI_DATABLOCKEND; - - writel(mask, host->base + MMCIMASK0); + writel(MCI_IRQENABLE, host->base + MMCIMASK0); amba_set_drvdata(dev, mmc); diff --git a/drivers/mmc/host/mmci.h b/drivers/mmc/host/mmci.h index df06f01aac8..c1df7b82d36 100644 --- a/drivers/mmc/host/mmci.h +++ b/drivers/mmc/host/mmci.h @@ -137,7 +137,7 @@ #define MCI_IRQENABLE \ (MCI_CMDCRCFAILMASK|MCI_DATACRCFAILMASK|MCI_CMDTIMEOUTMASK| \ MCI_DATATIMEOUTMASK|MCI_TXUNDERRUNMASK|MCI_RXOVERRUNMASK| \ - MCI_CMDRESPENDMASK|MCI_CMDSENTMASK|MCI_DATABLOCKENDMASK) + MCI_CMDRESPENDMASK|MCI_CMDSENTMASK) /* These interrupts are directed to IRQ1 when two IRQ lines are available */ #define MCI_IRQ1MASK \ @@ -177,9 +177,6 @@ struct mmci_host { struct timer_list timer; unsigned int oldstat; - bool blockend; - bool dataend; - /* pio stuff */ struct sg_mapping_iter sg_miter; unsigned int size; diff --git a/sound/arm/aaci.c b/sound/arm/aaci.c index 91acc9a243e..24d3013c023 100644 --- a/sound/arm/aaci.c +++ b/sound/arm/aaci.c @@ -30,6 +30,8 @@ #define DRIVER_NAME "aaci-pl041" +#define FRAME_PERIOD_US 21 + /* * PM support is not complete. Turn it off. */ @@ -64,8 +66,8 @@ static void aaci_ac97_write(struct snd_ac97 *ac97, unsigned short reg, unsigned short val) { struct aaci *aaci = ac97->private_data; + int timeout; u32 v; - int timeout = 5000; if (ac97->num >= 4) return; @@ -81,14 +83,17 @@ static void aaci_ac97_write(struct snd_ac97 *ac97, unsigned short reg, writel(val << 4, aaci->base + AACI_SL2TX); writel(reg << 12, aaci->base + AACI_SL1TX); - /* - * Wait for the transmission of both slots to complete. - */ + /* Initially, wait one frame period */ + udelay(FRAME_PERIOD_US); + + /* And then wait an additional eight frame periods for it to be sent */ + timeout = FRAME_PERIOD_US * 8; do { + udelay(1); v = readl(aaci->base + AACI_SLFR); } while ((v & (SLFR_1TXB|SLFR_2TXB)) && --timeout); - if (!timeout) + if (v & (SLFR_1TXB|SLFR_2TXB)) dev_err(&aaci->dev->dev, "timeout waiting for write to complete\n"); @@ -101,9 +106,8 @@ static void aaci_ac97_write(struct snd_ac97 *ac97, unsigned short reg, static unsigned short aaci_ac97_read(struct snd_ac97 *ac97, unsigned short reg) { struct aaci *aaci = ac97->private_data; + int timeout, retries = 10; u32 v; - int timeout = 5000; - int retries = 10; if (ac97->num >= 4) return ~0; @@ -117,35 +121,34 @@ static unsigned short aaci_ac97_read(struct snd_ac97 *ac97, unsigned short reg) */ writel((reg << 12) | (1 << 19), aaci->base + AACI_SL1TX); - /* - * Wait for the transmission to complete. - */ + /* Initially, wait one frame period */ + udelay(FRAME_PERIOD_US); + + /* And then wait an additional eight frame periods for it to be sent */ + timeout = FRAME_PERIOD_US * 8; do { + udelay(1); v = readl(aaci->base + AACI_SLFR); } while ((v & SLFR_1TXB) && --timeout); - if (!timeout) { + if (v & SLFR_1TXB) { dev_err(&aaci->dev->dev, "timeout on slot 1 TX busy\n"); v = ~0; goto out; } - /* - * Give the AC'97 codec more than enough time - * to respond. (42us = ~2 frames at 48kHz.) - */ - udelay(42); + /* Now wait for the response frame */ + udelay(FRAME_PERIOD_US); - /* - * Wait for slot 2 to indicate data. - */ - timeout = 5000; + /* And then wait an additional eight frame periods for data */ + timeout = FRAME_PERIOD_US * 8; do { + udelay(1); cond_resched(); v = readl(aaci->base + AACI_SLFR) & (SLFR_1RXV|SLFR_2RXV); } while ((v != (SLFR_1RXV|SLFR_2RXV)) && --timeout); - if (!timeout) { + if (v != (SLFR_1RXV|SLFR_2RXV)) { dev_err(&aaci->dev->dev, "timeout on RX valid\n"); v = ~0; goto out; @@ -179,6 +182,7 @@ aaci_chan_wait_ready(struct aaci_runtime *aacirun, unsigned long mask) int timeout = 5000; do { + udelay(1); val = readl(aacirun->base + AACI_SR); } while (val & mask && timeout--); } @@ -874,7 +878,7 @@ static int __devinit aaci_probe_ac97(struct aaci *aaci) * Give the AC'97 codec more than enough time * to wake up. (42us = ~2 frames at 48kHz.) */ - udelay(42); + udelay(FRAME_PERIOD_US * 2); ret = snd_ac97_bus(aaci->card, 0, &aaci_bus_ops, aaci, &ac97_bus); if (ret) |