[PATCH v2 12/12] Crypto: CESA: Add support for DT based instantiation.
From: andrew@lunn.ch (Andrew Lunn)
Date: 2012-07-03 14:22:45
Also in:
linux-devicetree, linux-i2c, linux-spi
Subsystem:
crypto api, open firmware and flattened device tree bindings, the rest · Maintainers:
Herbert Xu, "David S. Miller", Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
Possibly related (same subject, not in this thread)
- 2012-07-03 · Re: [PATCH v2 12/12] Crypto: CESA: Add support for DT based instantiation. · Andrew Lunn <hidden>
- 2012-07-03 · Re: [PATCH v2 12/12] Crypto: CESA: Add support for DT based instantiation. · Florian Fainelli <hidden>
Based on work by Michael Waller and Jason Cooper. Added support for getting the interrupt number from DT. Signed-off-by: Andrew Lunn <andrew@lunn.ch> --- .../devicetree/bindings/crypto/mv_cesa.txt | 18 ++++++++++++ drivers/crypto/mv_cesa.c | 31 +++++++++++++++++--- 2 files changed, 45 insertions(+), 4 deletions(-) create mode 100644 Documentation/devicetree/bindings/crypto/mv_cesa.txt
diff --git a/Documentation/devicetree/bindings/crypto/mv_cesa.txt b/Documentation/devicetree/bindings/crypto/mv_cesa.txt
new file mode 100644
index 0000000..f191122
--- /dev/null
+++ b/Documentation/devicetree/bindings/crypto/mv_cesa.txt@@ -0,0 +1,18 @@ +Marvell Cryptographic Engines And Security Accelerator + +Required properties: +- compatible : should be "mrvl,orion-crypto" +- reg : base physical address of the engine and length of memory mapped + region, followed by base physical address of sram and its memory + length +- interrupts : interrupt number + +Examples: + +crypto at f1030000 { + compatible = "mrvl,orion-crypto"; + reg = <0xf1030000 0x10000 + 0xf5000000 0x800>; /* sram */ + interrupts = <22>; +}; +
diff --git a/drivers/crypto/mv_cesa.c b/drivers/crypto/mv_cesa.c
index 1cc6b3f..964c4c5 100644
--- a/drivers/crypto/mv_cesa.c
+++ b/drivers/crypto/mv_cesa.c@@ -19,6 +19,9 @@ #include <linux/clk.h> #include <crypto/internal/hash.h> #include <crypto/sha.h> +#include <linux/of.h> +#include <linux/of_platform.h> +#include <linux/of_irq.h> #include "mv_cesa.h"
@@ -1005,7 +1008,11 @@ static int mv_probe(struct platform_device *pdev) return -EEXIST; } - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "regs"); + if (pdev->dev.of_node) + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, + "regs"); + else + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!res) return -ENXIO;
@@ -1021,7 +1028,11 @@ static int mv_probe(struct platform_device *pdev) goto err; } - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "sram"); + if (pdev->dev.of_node) + res = platform_get_resource(pdev, IORESOURCE_MEM, 1); + else + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, + "sram"); if (!res) { ret = -ENXIO; goto err_unmap_reg;
@@ -1034,7 +1045,10 @@ static int mv_probe(struct platform_device *pdev) goto err_unmap_reg; } - irq = platform_get_irq(pdev, 0); + if (pdev->dev.of_node) + irq = irq_of_parse_and_map(pdev->dev.of_node, 0); + else + irq = platform_get_irq(pdev, 0); if (irq < 0 || irq == NO_IRQ) { ret = irq; goto err_unmap_sram;
@@ -1137,12 +1151,21 @@ static int mv_remove(struct platform_device *pdev) return 0; } +#ifdef CONFIG_OF +static const struct of_device_id mv_cesa_of_match_table[] __devinitdata = { + { .compatible = "marvell,orion-crypto", }, + {}, +}; +MODULE_DEVICE_TABLE(of, mv_cesa_of_match_table); +#endif + static struct platform_driver marvell_crypto = { .probe = mv_probe, - .remove = mv_remove, + .remove = __devexit_p(mv_remove), .driver = { .owner = THIS_MODULE, .name = "mv_crypto", + .of_match_table = of_match_ptr(mv_cesa_of_match_table), }, }; MODULE_ALIAS("platform:mv_crypto");
--
1.7.10