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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 */
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