mach-ux500: crypto - core support for CRYP/HASH module.

This adds the required platform data and calls to enable the CRYP/HASH driver. Signed-off-by: Andreas Westin <andreas.westin@stericsson.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
git-mirror · May 15, 2012 · 585d188 · 585d188
1 parent b29e267
commit 585d188
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Showing 8 changed files with 126 additions and 8 deletions.
diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c
@@ -44,6 +44,7 @@
 #include <mach/setup.h>
 #include <mach/devices.h>
 #include <mach/irqs.h>
+#include <mach/crypto-ux500.h>
 
 #include "pins-db8500.h"
 #include "ste-dma40-db8500.h"
@@ -414,6 +415,45 @@ static void mop500_prox_deactivate(struct device *dev)
 	regulator_put(prox_regulator);
 }
 
+static struct cryp_platform_data u8500_cryp1_platform_data = {
+		.mem_to_engine = {
+				.dir = STEDMA40_MEM_TO_PERIPH,
+				.src_dev_type = STEDMA40_DEV_SRC_MEMORY,
+				.dst_dev_type = DB8500_DMA_DEV48_CAC1_TX,
+				.src_info.data_width = STEDMA40_WORD_WIDTH,
+				.dst_info.data_width = STEDMA40_WORD_WIDTH,
+				.mode = STEDMA40_MODE_LOGICAL,
+				.src_info.psize = STEDMA40_PSIZE_LOG_4,
+				.dst_info.psize = STEDMA40_PSIZE_LOG_4,
+		},
+		.engine_to_mem = {
+				.dir = STEDMA40_PERIPH_TO_MEM,
+				.src_dev_type = DB8500_DMA_DEV48_CAC1_RX,
+				.dst_dev_type = STEDMA40_DEV_DST_MEMORY,
+				.src_info.data_width = STEDMA40_WORD_WIDTH,
+				.dst_info.data_width = STEDMA40_WORD_WIDTH,
+				.mode = STEDMA40_MODE_LOGICAL,
+				.src_info.psize = STEDMA40_PSIZE_LOG_4,
+				.dst_info.psize = STEDMA40_PSIZE_LOG_4,
+		}
+};
+
+static struct stedma40_chan_cfg u8500_hash_dma_cfg_tx = {
+		.dir = STEDMA40_MEM_TO_PERIPH,
+		.src_dev_type = STEDMA40_DEV_SRC_MEMORY,
+		.dst_dev_type = DB8500_DMA_DEV50_HAC1_TX,
+		.src_info.data_width = STEDMA40_WORD_WIDTH,
+		.dst_info.data_width = STEDMA40_WORD_WIDTH,
+		.mode = STEDMA40_MODE_LOGICAL,
+		.src_info.psize = STEDMA40_PSIZE_LOG_16,
+		.dst_info.psize = STEDMA40_PSIZE_LOG_16,
+};
+
+static struct hash_platform_data u8500_hash1_platform_data = {
+		.mem_to_engine = &u8500_hash_dma_cfg_tx,
+		.dma_filter = stedma40_filter,
+};
+
 /* add any platform devices here - TODO */
 static struct platform_device *mop500_platform_devs[] __initdata = {
 	&mop500_gpio_keys_device,
@@ -599,6 +639,12 @@ static void __init mop500_uart_init(struct device *parent)
 	db8500_add_uart2(parent, &uart2_plat);
 }
 
+static void __init u8500_cryp1_hash1_init(struct device *parent)
+{
+	db8500_add_cryp1(parent, &u8500_cryp1_platform_data);
+	db8500_add_hash1(parent, &u8500_hash1_platform_data);
+}
+
 static struct platform_device *snowball_platform_devs[] __initdata = {
 	&snowball_led_dev,
 	&snowball_key_dev,
@@ -629,6 +675,8 @@ static void __init mop500_init_machine(void)
 	mop500_spi_init(parent);
 	mop500_uart_init(parent);
 
+	u8500_cryp1_hash1_init(parent);
+
 	i2c0_devs = ARRAY_SIZE(mop500_i2c0_devices);
 
 	i2c_register_board_info(0, mop500_i2c0_devices, i2c0_devs);

diff --git a/arch/arm/mach-ux500/clock.c b/arch/arm/mach-ux500/clock.c
@@ -382,14 +382,15 @@ static DEFINE_PRCC_CLK(5, usb,		0,  0, NULL);
 /* Peripheral Cluster #6 */
 
 /* MTU ID in data */
-static DEFINE_PRCC_CLK_CUSTOM(6, mtu1, 8, -1, NULL, clk_mtu_get_rate, 1);
-static DEFINE_PRCC_CLK_CUSTOM(6, mtu0, 7, -1, NULL, clk_mtu_get_rate, 0);
-static DEFINE_PRCC_CLK(6, cfgreg,	6,  6, NULL);
-static DEFINE_PRCC_CLK(6, hash1,	5, -1, NULL);
-static DEFINE_PRCC_CLK(6, unipro,	4,  1, &clk_uniproclk);
-static DEFINE_PRCC_CLK(6, pka,		3, -1, NULL);
-static DEFINE_PRCC_CLK(6, hash0,	2, -1, NULL);
-static DEFINE_PRCC_CLK(6, cryp0,	1, -1, NULL);
+static DEFINE_PRCC_CLK_CUSTOM(6, mtu1, 9, -1, NULL, clk_mtu_get_rate, 1);
+static DEFINE_PRCC_CLK_CUSTOM(6, mtu0, 8, -1, NULL, clk_mtu_get_rate, 0);
+static DEFINE_PRCC_CLK(6, cfgreg,	7,  7, NULL);
+static DEFINE_PRCC_CLK(6, hash1,	6, -1, NULL);
+static DEFINE_PRCC_CLK(6, unipro,	5,  1, &clk_uniproclk);
+static DEFINE_PRCC_CLK(6, pka,		4, -1, NULL);
+static DEFINE_PRCC_CLK(6, hash0,	3, -1, NULL);
+static DEFINE_PRCC_CLK(6, cryp0,	2, -1, NULL);
+static DEFINE_PRCC_CLK(6, cryp1,    1, -1, NULL);
 static DEFINE_PRCC_CLK(6, rng,	0,  0, &clk_rngclk);
 
 static struct clk clk_dummy_apb_pclk = {
@@ -431,6 +432,7 @@ static struct clk_lookup u8500_clks[] = {
 	CLK(pka,	"pka",		NULL),
 	CLK(hash0,	"hash0",	NULL),
 	CLK(cryp0,	"cryp0",	NULL),
+	CLK(cryp1,  "cryp1",    NULL),
 
 	/* PRCMU level clock gating */
 

diff --git a/arch/arm/mach-ux500/devices-common.h b/arch/arm/mach-ux500/devices-common.h
@@ -12,12 +12,17 @@
 #include <linux/dma-mapping.h>
 #include <linux/sys_soc.h>
 #include <plat/i2c.h>
+#include <mach/crypto-ux500.h>
 
 extern struct amba_device *
 dbx500_add_amba_device(struct device *parent, const char *name,
 		       resource_size_t base, int irq, void *pdata,
 		       unsigned int periphid);
 
+extern struct platform_device *
+dbx500_add_platform_device_noirq(const char *name, int id,
+		resource_size_t base, void *pdata);
+
 struct spi_master_cntlr;
 
 static inline struct amba_device *
@@ -88,6 +93,55 @@ dbx500_add_rtc(struct device *parent, resource_size_t base, int irq)
 	return dbx500_add_amba_device(parent, "rtc-pl031", base, irq, NULL, 0);
 }
 
+struct cryp_platform_data;
+
+static inline struct platform_device *
+dbx500_add_cryp1(struct device *parent, int id, resource_size_t base, int irq,
+		struct cryp_platform_data *pdata)
+{
+	struct resource res[] = {
+			DEFINE_RES_MEM(base, SZ_4K),
+			DEFINE_RES_IRQ(irq),
+	};
+
+	struct platform_device_info pdevinfo = {
+			.parent = parent,
+			.name = "cryp1",
+			.id = id,
+			.res = res,
+			.num_res = ARRAY_SIZE(res),
+			.data = pdata,
+			.size_data = sizeof(*pdata),
+			.dma_mask = DMA_BIT_MASK(32),
+	};
+
+	return platform_device_register_full(&pdevinfo);
+}
+
+struct hash_platform_data;
+
+static inline struct platform_device *
+dbx500_add_hash1(struct device *parent, int id, resource_size_t base,
+		struct hash_platform_data *pdata)
+{
+	struct resource res[] = {
+			DEFINE_RES_MEM(base, SZ_4K),
+	};
+
+	struct platform_device_info pdevinfo = {
+			.parent = parent,
+			.name = "hash1",
+			.id = id,
+			.res = res,
+			.num_res = ARRAY_SIZE(res),
+			.data = pdata,
+			.size_data = sizeof(*pdata),
+			.dma_mask = DMA_BIT_MASK(32),
+	};
+
+	return platform_device_register_full(&pdevinfo);
+}
+
 struct nmk_gpio_platform_data;
 
 void dbx500_add_gpios(struct device *parent, resource_size_t *base, int num,

diff --git a/arch/arm/mach-ux500/devices-db8500.c b/arch/arm/mach-ux500/devices-db8500.c
@@ -104,6 +104,8 @@ static const dma_addr_t dma40_tx_map[DB8500_DMA_NR_DEV] = {
 	[DB8500_DMA_DEV14_MSP2_TX] = U8500_MSP2_BASE + MSP_TX_RX_REG_OFFSET,
 	[DB8500_DMA_DEV30_MSP1_TX] = U8500_MSP1_BASE + MSP_TX_RX_REG_OFFSET,
 	[DB8500_DMA_DEV31_MSP0_TX_SLIM0_CH0_TX] = U8500_MSP0_BASE + MSP_TX_RX_REG_OFFSET,
+	[DB8500_DMA_DEV48_CAC1_TX] = U8500_CRYP1_BASE + CRYP1_TX_REG_OFFSET,
+	[DB8500_DMA_DEV50_HAC1_TX] = U8500_HASH1_BASE + HASH1_TX_REG_OFFSET,
 };
 
 /* Mapping between source event lines and physical device address */
@@ -139,6 +141,7 @@ static const dma_addr_t dma40_rx_map[DB8500_DMA_NR_DEV] = {
 	[DB8500_DMA_DEV14_MSP2_RX] = U8500_MSP2_BASE + MSP_TX_RX_REG_OFFSET,
 	[DB8500_DMA_DEV30_MSP3_RX] = U8500_MSP3_BASE + MSP_TX_RX_REG_OFFSET,
 	[DB8500_DMA_DEV31_MSP0_RX_SLIM0_CH0_RX] = U8500_MSP0_BASE + MSP_TX_RX_REG_OFFSET,
+	[DB8500_DMA_DEV48_CAC1_RX] = U8500_CRYP1_BASE + CRYP1_RX_REG_OFFSET,
 };
 
 /* Reserved event lines for memcpy only */

diff --git a/arch/arm/mach-ux500/devices-db8500.h b/arch/arm/mach-ux500/devices-db8500.h
@@ -124,4 +124,8 @@ db8500_add_ssp(struct device *parent, const char *name, resource_size_t base,
 	dbx500_add_uart(parent, "uart2", U8500_UART2_BASE, \
 			IRQ_DB8500_UART2, pdata)
 
+#define db8500_add_cryp1(parent, pdata) \
+	dbx500_add_cryp1(parent, -1, U8500_CRYP1_BASE, IRQ_DB8500_CRYP1, pdata)
+#define db8500_add_hash1(parent, pdata) \
+	dbx500_add_hash1(parent, -1, U8500_HASH1_BASE, pdata)
 #endif
diff --git a/arch/arm/mach-ux500/include/mach/crypto-ux500.h b/arch/arm/mach-ux500/include/mach/crypto-ux500.h
@@ -5,6 +5,7 @@
  * License terms: GNU General Public License (GPL) version 2
  */
 #ifndef _CRYPTO_UX500_H
+#define _CRYPTO_UX500_H
 #include <linux/dmaengine.h>
 #include <plat/ste_dma40.h>
 

diff --git a/arch/arm/mach-ux500/include/mach/devices.h b/arch/arm/mach-ux500/include/mach/devices.h
@@ -15,6 +15,9 @@ extern struct platform_device u8500_gpio_devs[];
 
 extern struct amba_device ux500_pl031_device;
 
+extern struct platform_device ux500_hash1_device;
+extern struct platform_device ux500_cryp1_device;
+
 extern struct platform_device u8500_dma40_device;
 extern struct platform_device ux500_ske_keypad_device;
 

diff --git a/arch/arm/mach-ux500/include/mach/hardware.h b/arch/arm/mach-ux500/include/mach/hardware.h
@@ -31,6 +31,9 @@
 #include <mach/db5500-regs.h>
 
 #define MSP_TX_RX_REG_OFFSET	0
+#define CRYP1_RX_REG_OFFSET	0x10
+#define CRYP1_TX_REG_OFFSET	0x8
+#define HASH1_TX_REG_OFFSET	0x4
 
 #ifndef __ASSEMBLY__