ARM: AT91SAM9G45: add crypto peripherals (815e9721) · Commits · e / devices / android_kernel_samsung_exynos5433

arch/arm/mach-at91/at91sam9g45.c

+12 −1

Original line number	Original line	Diff line number	Diff line
	@@ -182,6 +182,13 @@ static struct clk adc_op_clk = {
	.rate_hz = 13200000,		.rate_hz = 13200000,
	};		};

			/* AES/TDES/SHA clock - Only for sam9m11/sam9g56 */
			static struct clk aestdessha_clk = {
			.name = "aestdessha_clk",
			.pmc_mask = 1 << AT91SAM9G45_ID_AESTDESSHA,
			.type = CLK_TYPE_PERIPHERAL,
			};

	static struct clk *periph_clocks[] __initdata = {		static struct clk *periph_clocks[] __initdata = {
	&pioA_clk,		&pioA_clk,
	&pioB_clk,		&pioB_clk,
	@@ -211,6 +218,7 @@ static struct clk *periph_clocks[] __initdata = {
	&udphs_clk,		&udphs_clk,
	&mmc1_clk,		&mmc1_clk,
	&adc_op_clk,		&adc_op_clk,
			&aestdessha_clk,
	// irq0		// irq0
	};		};

	@@ -231,6 +239,9 @@ static struct clk_lookup periph_clocks_lookups[] = {
	CLKDEV_CON_DEV_ID("pclk", "ssc.0", &ssc0_clk),		CLKDEV_CON_DEV_ID("pclk", "ssc.0", &ssc0_clk),
	CLKDEV_CON_DEV_ID("pclk", "ssc.1", &ssc1_clk),		CLKDEV_CON_DEV_ID("pclk", "ssc.1", &ssc1_clk),
	CLKDEV_CON_DEV_ID(NULL, "atmel-trng", &trng_clk),		CLKDEV_CON_DEV_ID(NULL, "atmel-trng", &trng_clk),
			CLKDEV_CON_DEV_ID(NULL, "atmel_sha", &aestdessha_clk),
			CLKDEV_CON_DEV_ID(NULL, "atmel_tdes", &aestdessha_clk),
			CLKDEV_CON_DEV_ID(NULL, "atmel_aes", &aestdessha_clk),
	/* more usart lookup table for DT entries */		/* more usart lookup table for DT entries */
	CLKDEV_CON_DEV_ID("usart", "ffffee00.serial", &mck),		CLKDEV_CON_DEV_ID("usart", "ffffee00.serial", &mck),
	CLKDEV_CON_DEV_ID("usart", "fff8c000.serial", &usart0_clk),		CLKDEV_CON_DEV_ID("usart", "fff8c000.serial", &usart0_clk),
	@@ -387,7 +398,7 @@ static unsigned int at91sam9g45_default_irq_priority[NR_AIC_IRQS] __initdata = {
	3, /* Ethernet */		3, /* Ethernet */
	0, /* Image Sensor Interface */		0, /* Image Sensor Interface */
	2, /* USB Device High speed port */		2, /* USB Device High speed port */
	0,		0, /* AESTDESSHA Crypto HW Accelerators */
	0, /* Multimedia Card Interface 1 */		0, /* Multimedia Card Interface 1 */
	0,		0,
	0, /* Advanced Interrupt Controller (IRQ0) */		0, /* Advanced Interrupt Controller (IRQ0) */

arch/arm/mach-at91/at91sam9g45_devices.c

+128 −0

Original line number	Original line	Diff line number	Diff line
	@@ -18,6 +18,7 @@
	#include <linux/platform_device.h>		#include <linux/platform_device.h>
	#include <linux/i2c-gpio.h>		#include <linux/i2c-gpio.h>
	#include <linux/atmel-mci.h>		#include <linux/atmel-mci.h>
			#include <linux/platform_data/atmel-aes.h>

	#include <linux/platform_data/at91_adc.h>		#include <linux/platform_data/at91_adc.h>

	@@ -1830,6 +1831,130 @@ void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins) {}
	void __init at91_add_device_serial(void) {}		void __init at91_add_device_serial(void) {}
	#endif		#endif

			/* --------------------------------------------------------------------
			* SHA1/SHA256
			* -------------------------------------------------------------------- */

			#if defined(CONFIG_CRYPTO_DEV_ATMEL_SHA) \|\| defined(CONFIG_CRYPTO_DEV_ATMEL_SHA_MODULE)
			static struct resource sha_resources[] = {
			{
			.start = AT91SAM9G45_BASE_SHA,
			.end = AT91SAM9G45_BASE_SHA + SZ_16K - 1,
			.flags = IORESOURCE_MEM,
			},
			[1] = {
			.start = AT91SAM9G45_ID_AESTDESSHA,
			.end = AT91SAM9G45_ID_AESTDESSHA,
			.flags = IORESOURCE_IRQ,
			},
			};

			static struct platform_device at91sam9g45_sha_device = {
			.name = "atmel_sha",
			.id = -1,
			.resource = sha_resources,
			.num_resources = ARRAY_SIZE(sha_resources),
			};

			static void __init at91_add_device_sha(void)
			{
			platform_device_register(&at91sam9g45_sha_device);
			}
			#else
			static void __init at91_add_device_sha(void) {}
			#endif

			/* --------------------------------------------------------------------
			* DES/TDES
			* -------------------------------------------------------------------- */

			#if defined(CONFIG_CRYPTO_DEV_ATMEL_TDES) \|\| defined(CONFIG_CRYPTO_DEV_ATMEL_TDES_MODULE)
			static struct resource tdes_resources[] = {
			[0] = {
			.start = AT91SAM9G45_BASE_TDES,
			.end = AT91SAM9G45_BASE_TDES + SZ_16K - 1,
			.flags = IORESOURCE_MEM,
			},
			[1] = {
			.start = AT91SAM9G45_ID_AESTDESSHA,
			.end = AT91SAM9G45_ID_AESTDESSHA,
			.flags = IORESOURCE_IRQ,
			},
			};

			static struct platform_device at91sam9g45_tdes_device = {
			.name = "atmel_tdes",
			.id = -1,
			.resource = tdes_resources,
			.num_resources = ARRAY_SIZE(tdes_resources),
			};

			static void __init at91_add_device_tdes(void)
			{
			platform_device_register(&at91sam9g45_tdes_device);
			}
			#else
			static void __init at91_add_device_tdes(void) {}
			#endif

			/* --------------------------------------------------------------------
			* AES
			* -------------------------------------------------------------------- */

			#if defined(CONFIG_CRYPTO_DEV_ATMEL_AES) \|\| defined(CONFIG_CRYPTO_DEV_ATMEL_AES_MODULE)
			static struct aes_platform_data aes_data;
			static u64 aes_dmamask = DMA_BIT_MASK(32);

			static struct resource aes_resources[] = {
			[0] = {
			.start = AT91SAM9G45_BASE_AES,
			.end = AT91SAM9G45_BASE_AES + SZ_16K - 1,
			.flags = IORESOURCE_MEM,
			},
			[1] = {
			.start = AT91SAM9G45_ID_AESTDESSHA,
			.end = AT91SAM9G45_ID_AESTDESSHA,
			.flags = IORESOURCE_IRQ,
			},
			};

			static struct platform_device at91sam9g45_aes_device = {
			.name = "atmel_aes",
			.id = -1,
			.dev = {
			.dma_mask = &aes_dmamask,
			.coherent_dma_mask = DMA_BIT_MASK(32),
			.platform_data = &aes_data,
			},
			.resource = aes_resources,
			.num_resources = ARRAY_SIZE(aes_resources),
			};

			static void __init at91_add_device_aes(void)
			{
			struct at_dma_slave *atslave;
			struct aes_dma_data *alt_atslave;

			alt_atslave = kzalloc(sizeof(struct aes_dma_data), GFP_KERNEL);

			/* DMA TX slave channel configuration */
			atslave = &alt_atslave->txdata;
			atslave->dma_dev = &at_hdmac_device.dev;
			atslave->cfg = ATC_FIFOCFG_ENOUGHSPACE \| ATC_SRC_H2SEL_HW \|
			ATC_SRC_PER(AT_DMA_ID_AES_RX);

			/* DMA RX slave channel configuration */
			atslave = &alt_atslave->rxdata;
			atslave->dma_dev = &at_hdmac_device.dev;
			atslave->cfg = ATC_FIFOCFG_ENOUGHSPACE \| ATC_DST_H2SEL_HW \|
			ATC_DST_PER(AT_DMA_ID_AES_TX);

			aes_data.dma_slave = alt_atslave;
			platform_device_register(&at91sam9g45_aes_device);
			}
			#else
			static void __init at91_add_device_aes(void) {}
			#endif

	/* -------------------------------------------------------------------- */		/* -------------------------------------------------------------------- */
	/*		/*
	@@ -1847,6 +1972,9 @@ static int __init at91_add_standard_devices(void)
	at91_add_device_trng();		at91_add_device_trng();
	at91_add_device_watchdog();		at91_add_device_watchdog();
	at91_add_device_tc();		at91_add_device_tc();
			at91_add_device_sha();
			at91_add_device_tdes();
			at91_add_device_aes();
	return 0;		return 0;
	}		}

arch/arm/mach-at91/include/mach/at91sam9g45.h

+2 −0

Original line number	Original line	Diff line number	Diff line
	@@ -136,6 +136,8 @@
	#define AT_DMA_ID_SSC1_RX 8		#define AT_DMA_ID_SSC1_RX 8
	#define AT_DMA_ID_AC97_TX 9		#define AT_DMA_ID_AC97_TX 9
	#define AT_DMA_ID_AC97_RX 10		#define AT_DMA_ID_AC97_RX 10
			#define AT_DMA_ID_AES_TX 11
			#define AT_DMA_ID_AES_RX 12
	#define AT_DMA_ID_MCI1 13		#define AT_DMA_ID_MCI1 13

	#endif		#endif

include/linux/platform_data/atmel-aes.h

0 → 100644

+22 −0

Original line number	Original line	Diff line number	Diff line
			#ifndef __LINUX_ATMEL_AES_H
			#define __LINUX_ATMEL_AES_H

			#include <mach/at_hdmac.h>

			/**
			* struct aes_dma_data - DMA data for AES
			*/
			struct aes_dma_data {
			struct at_dma_slave txdata;
			struct at_dma_slave rxdata;
			};

			/**
			* struct aes_platform_data - board-specific AES configuration
			* @dma_slave: DMA slave interface to use in data transfers.
			*/
			struct aes_platform_data {
			struct aes_dma_data *dma_slave;
			};

			#endif /* __LINUX_ATMEL_AES_H */