openwrt-xburst/target/linux/brcm63xx/patches-3.3/418-MIPS-BCM63XX-add-HS-SPI-platform-device-and-register.patch

From a2b75f344cdc0f9e12c7909511d95b27be72c6b9 Mon Sep 17 00:00:00 2001
From: Jonas Gorski <jonas.gorski@gmail.com>
Date: Sat, 12 Nov 2011 12:18:26 +0100
Subject: [PATCH 52/79] MIPS: BCM63XX: add HS SPI platform device and register
 it

Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
---
 arch/mips/bcm63xx/Makefile                         |    5 +-
 arch/mips/bcm63xx/boards/board_bcm963xx.c          |    2 +
 arch/mips/bcm63xx/dev-hsspi.c                      |   58 ++++++++++++++++++++
 .../include/asm/mach-bcm63xx/bcm63xx_dev_hsspi.h   |   26 +++++++++
 4 files changed, 89 insertions(+), 2 deletions(-)
 create mode 100644 arch/mips/bcm63xx/dev-hsspi.c
 create mode 100644 arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_hsspi.h

--- a/arch/mips/bcm63xx/Makefile
+++ b/arch/mips/bcm63xx/Makefile
@@ -1,6 +1,7 @@
 obj-y		+= clk.o cpu.o cs.o gpio.o irq.o prom.o setup.o timer.o \
-		   dev-dsp.o dev-enet.o dev-flash.o dev-pcmcia.o dev-spi.o \
-		   dev-trng.o dev-uart.o dev-usb-ehci.o dev-usb-ohci.o dev-wdt.o
+		   dev-dsp.o dev-enet.o dev-flash.o dev-hsspi.o dev-pcmcia.o \
+		   dev-spi.o dev-trng.o dev-uart.o dev-usb-ehci.o \
+		   dev-usb-ohci.o dev-wdt.o
 obj-$(CONFIG_EARLY_PRINTK)	+= early_printk.o
 
 obj-y		+= boards/
--- a/arch/mips/bcm63xx/boards/board_bcm963xx.c
+++ b/arch/mips/bcm63xx/boards/board_bcm963xx.c
@@ -25,6 +25,7 @@
 #include <bcm63xx_dev_enet.h>
 #include <bcm63xx_dev_dsp.h>
 #include <bcm63xx_dev_flash.h>
+#include <bcm63xx_dev_hsspi.h>
 #include <bcm63xx_dev_pcmcia.h>
 #include <bcm63xx_dev_spi.h>
 #include <bcm63xx_dev_usb_ohci.h>
@@ -941,6 +942,7 @@ int __init board_register_devices(void)
 			pr_err(PFX "failed to register fallback SPROM\n");
 	}
 #endif
+	bcm63xx_hsspi_register();
 
 	bcm63xx_spi_register();
 
--- /dev/null
+++ b/arch/mips/bcm63xx/dev-hsspi.c
@@ -0,0 +1,58 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2009 Florian Fainelli <florian@openwrt.org>
+ * Copyright (C) 2010 Tanguy Bouzeloc <tanguy.bouzeloc@efixo.com>
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+
+#include <bcm63xx_cpu.h>
+#include <bcm63xx_dev_hsspi.h>
+#include <bcm63xx_regs.h>
+
+static struct resource spi_resources[] = {
+	{
+		.start		= -1, /* filled at runtime */
+		.end		= -1, /* filled at runtime */
+		.flags		= IORESOURCE_MEM,
+	},
+	{
+		.start		= -1, /* filled at runtime */
+		.flags		= IORESOURCE_IRQ,
+	},
+};
+
+static struct bcm63xx_hsspi_pdata spi_pdata = {
+	.bus_num	= 0,
+};
+
+static struct platform_device bcm63xx_hsspi_device = {
+	.name		= "bcm63xx-hsspi",
+	.id		= 0,
+	.num_resources	= ARRAY_SIZE(spi_resources),
+	.resource	= spi_resources,
+	.dev		= {
+		.platform_data = &spi_pdata,
+	},
+};
+
+int __init bcm63xx_hsspi_register(void)
+{
+
+	if (!BCMCPU_IS_6328())
+		return -ENODEV;
+
+	spi_resources[0].start = bcm63xx_regset_address(RSET_HSSPI);
+	spi_resources[0].end = spi_resources[0].start;
+	spi_resources[0].end += RSET_HSSPI_SIZE - 1;
+	spi_resources[1].start = bcm63xx_get_irq_number(IRQ_HSSPI);
+
+	spi_pdata.speed_hz = HSSPI_PLL_HZ_6328;
+
+	return platform_device_register(&bcm63xx_hsspi_device);
+}
--- /dev/null
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_hsspi.h
@@ -0,0 +1,26 @@
+#ifndef BCM63XX_DEV_HSSPI_H
+#define BCM63XX_DEV_HSSPI_H
+
+#include <linux/types.h>
+#include <bcm63xx_io.h>
+#include <bcm63xx_regs.h>
+
+int __init bcm63xx_hsspi_register(void);
+
+struct bcm63xx_hsspi_pdata {
+	int		bus_num;
+	u32		speed_hz;
+};
+
+#define bcm_hsspi_readl(o)	bcm_rset_readl(RSET_HSSPI, (o))
+#define bcm_hsspi_writel(v, o)	bcm_rset_writel(RSET_HSSPI, (v), (o))
+
+#define HSSPI_PLL_HZ_6328	133333333
+
+#define HSSPI_OP_CODE_SHIFT	13
+#define HSSPI_OP_SLEEP		(0 << HSSPI_OP_CODE_SHIFT)
+#define HSSPI_OP_READ_WRITE	(1 << HSSPI_OP_CODE_SHIFT)
+#define HSSPI_OP_WRITE		(2 << HSSPI_OP_CODE_SHIFT)
+#define HSSPI_OP_READ		(3 << HSSPI_OP_CODE_SHIFT)
+
+#endif /* BCM63XX_DEV_HSSPI_H */