diff options
| -rw-r--r-- | Documentation/kernel-parameters.txt | 6 | ||||
| -rw-r--r-- | arch/arm/mach-davinci/da8xx-dt.c | 4 | ||||
| -rw-r--r-- | arch/arm/mach-davinci/devices-da8xx.c | 88 | ||||
| -rw-r--r-- | arch/arm/mach-davinci/include/mach/da8xx.h | 4 | ||||
| -rw-r--r-- | arch/arm/mach-davinci/pm.c | 1 | ||||
| -rw-r--r-- | arch/arm/mach-davinci/sram.c | 4 | ||||
| -rw-r--r-- | arch/arm/mach-davinci/usb.c | 1 |
7 files changed, 103 insertions, 5 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 4609e81dbc37..4a6d96214eed 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -44,6 +44,7 @@ parameter is applicable: AVR32 AVR32 architecture is enabled. AX25 Appropriate AX.25 support is enabled. BLACKFIN Blackfin architecture is enabled. + CMA Contiguous Memory Area support is enabled. DRM Direct Rendering Management support is enabled. DYNAMIC_DEBUG Build in debug messages and enable them at runtime EDD BIOS Enhanced Disk Drive Services (EDD) is enabled @@ -2663,6 +2664,11 @@ bytes respectively. Such letter suffixes can also be entirely omitted. Useful for devices that are detected asynchronously (e.g. USB and MMC devices). + rproc_mem=nn[KMG][@address] + [KNL,ARM,CMA] Remoteproc physical memory block. + Memory area to be used by remote processor image, + managed by CMA. + rw [KNL] Mount root device read-write on boot S [KNL] Run init in single mode diff --git a/arch/arm/mach-davinci/da8xx-dt.c b/arch/arm/mach-davinci/da8xx-dt.c index d83de8f8fa6b..b1c0a5958275 100644 --- a/arch/arm/mach-davinci/da8xx-dt.c +++ b/arch/arm/mach-davinci/da8xx-dt.c @@ -20,7 +20,7 @@ #define DA8XX_NUM_UARTS 3 -void __init da8xx_uart_clk_enable(void) +static void __init da8xx_uart_clk_enable(void) { int i; for (i = 0; i < DA8XX_NUM_UARTS; i++) @@ -37,7 +37,7 @@ static void __init da8xx_init_irq(void) of_irq_init(da8xx_irq_match); } -struct of_dev_auxdata da850_auxdata_lookup[] __initdata = { +static struct of_dev_auxdata da850_auxdata_lookup[] __initdata = { OF_DEV_AUXDATA("ti,davinci-i2c", 0x01c22000, "i2c_davinci.1", NULL), OF_DEV_AUXDATA("ti,davinci-wdt", 0x01c21000, "watchdog", NULL), OF_DEV_AUXDATA("ti,da830-mmc", 0x01c40000, "da830-mmc.0", NULL), diff --git a/arch/arm/mach-davinci/devices-da8xx.c b/arch/arm/mach-davinci/devices-da8xx.c index cb97e07db284..bf572525175d 100644 --- a/arch/arm/mach-davinci/devices-da8xx.c +++ b/arch/arm/mach-davinci/devices-da8xx.c @@ -12,7 +12,7 @@ */ #include <linux/init.h> #include <linux/platform_device.h> -#include <linux/dma-mapping.h> +#include <linux/dma-contiguous.h> #include <linux/serial_8250.h> #include <linux/ahci_platform.h> #include <linux/clk.h> @@ -714,6 +714,92 @@ int __init da850_register_mmcsd1(struct davinci_mmc_config *config) } #endif +static struct resource da8xx_rproc_resources[] = { + { /* DSP boot address */ + .start = DA8XX_SYSCFG0_BASE + DA8XX_HOST1CFG_REG, + .end = DA8XX_SYSCFG0_BASE + DA8XX_HOST1CFG_REG + 3, + .flags = IORESOURCE_MEM, + }, + { /* DSP interrupt registers */ + .start = DA8XX_SYSCFG0_BASE + DA8XX_CHIPSIG_REG, + .end = DA8XX_SYSCFG0_BASE + DA8XX_CHIPSIG_REG + 7, + .flags = IORESOURCE_MEM, + }, + { /* dsp irq */ + .start = IRQ_DA8XX_CHIPINT0, + .end = IRQ_DA8XX_CHIPINT0, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device da8xx_dsp = { + .name = "davinci-rproc", + .dev = { + .coherent_dma_mask = DMA_BIT_MASK(32), + }, + .num_resources = ARRAY_SIZE(da8xx_rproc_resources), + .resource = da8xx_rproc_resources, +}; + +#if IS_ENABLED(CONFIG_DA8XX_REMOTEPROC) + +static phys_addr_t rproc_base __initdata; +static unsigned long rproc_size __initdata; + +static int __init early_rproc_mem(char *p) +{ + char *endp; + + if (p == NULL) + return 0; + + rproc_size = memparse(p, &endp); + if (*endp == '@') + rproc_base = memparse(endp + 1, NULL); + + return 0; +} +early_param("rproc_mem", early_rproc_mem); + +void __init da8xx_rproc_reserve_cma(void) +{ + int ret; + + if (!rproc_base || !rproc_size) { + pr_err("%s: 'rproc_mem=nn@address' badly specified\n" + " 'nn' and 'address' must both be non-zero\n", + __func__); + + return; + } + + pr_info("%s: reserving 0x%lx @ 0x%lx...\n", + __func__, rproc_size, (unsigned long)rproc_base); + + ret = dma_declare_contiguous(&da8xx_dsp.dev, rproc_size, rproc_base, 0); + if (ret) + pr_err("%s: dma_declare_contiguous failed %d\n", __func__, ret); +} + +#else + +void __init da8xx_rproc_reserve_cma(void) +{ +} + +#endif + +int __init da8xx_register_rproc(void) +{ + int ret; + + ret = platform_device_register(&da8xx_dsp); + if (ret) + pr_err("%s: can't register DSP device: %d\n", __func__, ret); + + return ret; +}; + static struct resource da8xx_rtc_resources[] = { { .start = DA8XX_RTC_BASE, diff --git a/arch/arm/mach-davinci/include/mach/da8xx.h b/arch/arm/mach-davinci/include/mach/da8xx.h index be77ce269cb0..2e1c9eae0a58 100644 --- a/arch/arm/mach-davinci/include/mach/da8xx.h +++ b/arch/arm/mach-davinci/include/mach/da8xx.h @@ -54,6 +54,8 @@ extern unsigned int da850_max_speed; #define DA8XX_SYSCFG0_BASE (IO_PHYS + 0x14000) #define DA8XX_SYSCFG0_VIRT(x) (da8xx_syscfg0_base + (x)) #define DA8XX_JTAG_ID_REG 0x18 +#define DA8XX_HOST1CFG_REG 0x44 +#define DA8XX_CHIPSIG_REG 0x174 #define DA8XX_CFGCHIP0_REG 0x17c #define DA8XX_CFGCHIP1_REG 0x180 #define DA8XX_CFGCHIP2_REG 0x184 @@ -105,6 +107,8 @@ int __init da850_register_vpif_display int __init da850_register_vpif_capture (struct vpif_capture_config *capture_config); void da8xx_restart(char mode, const char *cmd); +void da8xx_rproc_reserve_cma(void); +int da8xx_register_rproc(void); extern struct platform_device da8xx_serial_device; extern struct emac_platform_data da8xx_emac_pdata; diff --git a/arch/arm/mach-davinci/pm.c b/arch/arm/mach-davinci/pm.c index eb8360b33aa9..a508fe587af7 100644 --- a/arch/arm/mach-davinci/pm.c +++ b/arch/arm/mach-davinci/pm.c @@ -19,6 +19,7 @@ #include <asm/delay.h> #include <asm/io.h> +#include <mach/common.h> #include <mach/da8xx.h> #include <mach/sram.h> #include <mach/pm.h> diff --git a/arch/arm/mach-davinci/sram.c b/arch/arm/mach-davinci/sram.c index c5f7ee5cc80a..f18928b073f5 100644 --- a/arch/arm/mach-davinci/sram.c +++ b/arch/arm/mach-davinci/sram.c @@ -62,7 +62,7 @@ static int __init sram_init(void) phys_addr_t phys = davinci_soc_info.sram_dma; unsigned len = davinci_soc_info.sram_len; int status = 0; - void *addr; + void __iomem *addr; if (len) { len = min_t(unsigned, len, SRAM_SIZE); @@ -75,7 +75,7 @@ static int __init sram_init(void) addr = ioremap(phys, len); if (!addr) return -ENOMEM; - status = gen_pool_add_virt(sram_pool, (unsigned)addr, + status = gen_pool_add_virt(sram_pool, (unsigned long) addr, phys, len, -1); if (status < 0) iounmap(addr); diff --git a/arch/arm/mach-davinci/usb.c b/arch/arm/mach-davinci/usb.c index 34509ffba221..2b4c648f99b6 100644 --- a/arch/arm/mach-davinci/usb.c +++ b/arch/arm/mach-davinci/usb.c @@ -10,6 +10,7 @@ #include <mach/common.h> #include <mach/irqs.h> #include <mach/cputype.h> +#include <mach/da8xx.h> #include <linux/platform_data/usb-davinci.h> #define DAVINCI_USB_OTG_BASE 0x01c64000 |