diff options
author | Arnd Bergmann | 2017-01-04 16:12:17 +0100 |
---|---|---|
committer | Arnd Bergmann | 2017-01-04 16:12:17 +0100 |
commit | d4032ccc406f325dbbda637fbb10746e9a441aa4 (patch) | |
tree | fd921d54fcc081828bf0d052bf2b936ab3f3010b /arch/arm | |
parent | cb2cc43681dacbd74f3c1f96fde5ee21524fed54 (diff) | |
parent | da6b21e97e39d42f90ab490ce7b54a0fe2c3fe35 (diff) |
Merge tag 'samsung-soc-4.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into fixes
Samsung mach/soc update for v4.10:
1. Minor cleanup in smp_operations.
2. Another step in switching s3c24xx to new DMA API.
3. Drop fixed requirement for HZ=200 on Samsung platforms.
* tag 'samsung-soc-4.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
ARM: Drop fixed 200 Hz timer requirement from Samsung platforms
ARM: S3C24XX: Add DMA slave maps for remaining s3c24xx SoCs
ARM: EXYNOS: Remove smp_init_cpus hook from platsmp.c
Diffstat (limited to 'arch/arm')
-rw-r--r-- | arch/arm/Kconfig | 3 | ||||
-rw-r--r-- | arch/arm/mach-exynos/platsmp.c | 31 | ||||
-rw-r--r-- | arch/arm/mach-s3c24xx/common.c | 76 |
3 files changed, 77 insertions, 33 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 5fab553fd03a..186c4c214e0a 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1502,8 +1502,7 @@ source kernel/Kconfig.preempt config HZ_FIXED int - default 200 if ARCH_EBSA110 || ARCH_S3C24XX || \ - ARCH_S5PV210 || ARCH_EXYNOS4 + default 200 if ARCH_EBSA110 default 128 if SOC_AT91RM9200 default 0 diff --git a/arch/arm/mach-exynos/platsmp.c b/arch/arm/mach-exynos/platsmp.c index 98ffe1e62ad5..a5d68411a037 100644 --- a/arch/arm/mach-exynos/platsmp.c +++ b/arch/arm/mach-exynos/platsmp.c @@ -385,36 +385,6 @@ fail: return pen_release != -1 ? ret : 0; } -/* - * Initialise the CPU possible map early - this describes the CPUs - * which may be present or become present in the system. - */ - -static void __init exynos_smp_init_cpus(void) -{ - void __iomem *scu_base = scu_base_addr(); - unsigned int i, ncores; - - if (read_cpuid_part() == ARM_CPU_PART_CORTEX_A9) - ncores = scu_base ? scu_get_core_count(scu_base) : 1; - else - /* - * CPU Nodes are passed thru DT and set_cpu_possible - * is set by "arm_dt_init_cpu_maps". - */ - return; - - /* sanity check */ - if (ncores > nr_cpu_ids) { - pr_warn("SMP: %u cores greater than maximum (%u), clipping\n", - ncores, nr_cpu_ids); - ncores = nr_cpu_ids; - } - - for (i = 0; i < ncores; i++) - set_cpu_possible(i, true); -} - static void __init exynos_smp_prepare_cpus(unsigned int max_cpus) { int i; @@ -479,7 +449,6 @@ static void exynos_cpu_die(unsigned int cpu) #endif /* CONFIG_HOTPLUG_CPU */ const struct smp_operations exynos_smp_ops __initconst = { - .smp_init_cpus = exynos_smp_init_cpus, .smp_prepare_cpus = exynos_smp_prepare_cpus, .smp_secondary_init = exynos_secondary_init, .smp_boot_secondary = exynos_boot_secondary, diff --git a/arch/arm/mach-s3c24xx/common.c b/arch/arm/mach-s3c24xx/common.c index f6c3f151d0d4..b59f4f4f256f 100644 --- a/arch/arm/mach-s3c24xx/common.c +++ b/arch/arm/mach-s3c24xx/common.c @@ -345,10 +345,40 @@ static struct s3c24xx_dma_channel s3c2410_dma_channels[DMACH_MAX] = { [DMACH_USB_EP4] = { S3C24XX_DMA_APB, true, S3C24XX_DMA_CHANREQ(4, 3), }, }; +static const struct dma_slave_map s3c2410_dma_slave_map[] = { + { "s3c2410-sdi", "rx-tx", (void *)DMACH_SDI }, + { "s3c2410-spi.0", "rx", (void *)DMACH_SPI0_RX }, + { "s3c2410-spi.0", "tx", (void *)DMACH_SPI0_TX }, + { "s3c2410-spi.1", "rx", (void *)DMACH_SPI1_RX }, + { "s3c2410-spi.1", "tx", (void *)DMACH_SPI1_TX }, + /* + * The DMA request source[1] (DMACH_UARTx_SRC2) are + * not used in the UART driver. + */ + { "s3c2410-uart.0", "rx", (void *)DMACH_UART0 }, + { "s3c2410-uart.0", "tx", (void *)DMACH_UART0 }, + { "s3c2410-uart.1", "rx", (void *)DMACH_UART1 }, + { "s3c2410-uart.1", "tx", (void *)DMACH_UART1 }, + { "s3c2410-uart.2", "rx", (void *)DMACH_UART2 }, + { "s3c2410-uart.2", "tx", (void *)DMACH_UART2 }, + { "s3c24xx-iis", "rx", (void *)DMACH_I2S_IN }, + { "s3c24xx-iis", "tx", (void *)DMACH_I2S_OUT }, + { "s3c-hsudc", "rx0", (void *)DMACH_USB_EP1 }, + { "s3c-hsudc", "tx0", (void *)DMACH_USB_EP1 }, + { "s3c-hsudc", "rx1", (void *)DMACH_USB_EP2 }, + { "s3c-hsudc", "tx1", (void *)DMACH_USB_EP2 }, + { "s3c-hsudc", "rx2", (void *)DMACH_USB_EP3 }, + { "s3c-hsudc", "tx2", (void *)DMACH_USB_EP3 }, + { "s3c-hsudc", "rx3", (void *)DMACH_USB_EP4 }, + { "s3c-hsudc", "tx3", (void *)DMACH_USB_EP4 } +}; + static struct s3c24xx_dma_platdata s3c2410_dma_platdata = { .num_phy_channels = 4, .channels = s3c2410_dma_channels, .num_channels = DMACH_MAX, + .slave_map = s3c2410_dma_slave_map, + .slavecnt = ARRAY_SIZE(s3c2410_dma_slave_map), }; struct platform_device s3c2410_device_dma = { @@ -388,10 +418,36 @@ static struct s3c24xx_dma_channel s3c2412_dma_channels[DMACH_MAX] = { [DMACH_USB_EP4] = { S3C24XX_DMA_APB, true, 16 }, }; +static const struct dma_slave_map s3c2412_dma_slave_map[] = { + { "s3c2412-sdi", "rx-tx", (void *)DMACH_SDI }, + { "s3c2412-spi.0", "rx", (void *)DMACH_SPI0_RX }, + { "s3c2412-spi.0", "tx", (void *)DMACH_SPI0_TX }, + { "s3c2412-spi.1", "rx", (void *)DMACH_SPI1_RX }, + { "s3c2412-spi.1", "tx", (void *)DMACH_SPI1_TX }, + { "s3c2440-uart.0", "rx", (void *)DMACH_UART0 }, + { "s3c2440-uart.0", "tx", (void *)DMACH_UART0 }, + { "s3c2440-uart.1", "rx", (void *)DMACH_UART1 }, + { "s3c2440-uart.1", "tx", (void *)DMACH_UART1 }, + { "s3c2440-uart.2", "rx", (void *)DMACH_UART2 }, + { "s3c2440-uart.2", "tx", (void *)DMACH_UART2 }, + { "s3c2412-iis", "rx", (void *)DMACH_I2S_IN }, + { "s3c2412-iis", "tx", (void *)DMACH_I2S_OUT }, + { "s3c-hsudc", "rx0", (void *)DMACH_USB_EP1 }, + { "s3c-hsudc", "tx0", (void *)DMACH_USB_EP1 }, + { "s3c-hsudc", "rx1", (void *)DMACH_USB_EP2 }, + { "s3c-hsudc", "tx1", (void *)DMACH_USB_EP2 }, + { "s3c-hsudc", "rx2", (void *)DMACH_USB_EP3 }, + { "s3c-hsudc", "tx2", (void *)DMACH_USB_EP3 }, + { "s3c-hsudc", "rx3", (void *)DMACH_USB_EP4 }, + { "s3c-hsudc", "tx3", (void *)DMACH_USB_EP4 } +}; + static struct s3c24xx_dma_platdata s3c2412_dma_platdata = { .num_phy_channels = 4, .channels = s3c2412_dma_channels, .num_channels = DMACH_MAX, + .slave_map = s3c2412_dma_slave_map, + .slavecnt = ARRAY_SIZE(s3c2412_dma_slave_map), }; struct platform_device s3c2412_device_dma = { @@ -534,10 +590,30 @@ static struct s3c24xx_dma_channel s3c2443_dma_channels[DMACH_MAX] = { [DMACH_MIC_IN] = { S3C24XX_DMA_APB, true, 29 }, }; +static const struct dma_slave_map s3c2443_dma_slave_map[] = { + { "s3c2440-sdi", "rx-tx", (void *)DMACH_SDI }, + { "s3c2443-spi.0", "rx", (void *)DMACH_SPI0_RX }, + { "s3c2443-spi.0", "tx", (void *)DMACH_SPI0_TX }, + { "s3c2443-spi.1", "rx", (void *)DMACH_SPI1_RX }, + { "s3c2443-spi.1", "tx", (void *)DMACH_SPI1_TX }, + { "s3c2440-uart.0", "rx", (void *)DMACH_UART0 }, + { "s3c2440-uart.0", "tx", (void *)DMACH_UART0 }, + { "s3c2440-uart.1", "rx", (void *)DMACH_UART1 }, + { "s3c2440-uart.1", "tx", (void *)DMACH_UART1 }, + { "s3c2440-uart.2", "rx", (void *)DMACH_UART2 }, + { "s3c2440-uart.2", "tx", (void *)DMACH_UART2 }, + { "s3c2440-uart.3", "rx", (void *)DMACH_UART3 }, + { "s3c2440-uart.3", "tx", (void *)DMACH_UART3 }, + { "s3c24xx-iis", "rx", (void *)DMACH_I2S_IN }, + { "s3c24xx-iis", "tx", (void *)DMACH_I2S_OUT }, +}; + static struct s3c24xx_dma_platdata s3c2443_dma_platdata = { .num_phy_channels = 6, .channels = s3c2443_dma_channels, .num_channels = DMACH_MAX, + .slave_map = s3c2443_dma_slave_map, + .slavecnt = ARRAY_SIZE(s3c2443_dma_slave_map), }; struct platform_device s3c2443_device_dma = { |