+++ /dev/null
---- a/arch/mips/bcm63xx/cpu.c
-+++ b/arch/mips/bcm63xx/cpu.c
-@@ -55,6 +55,7 @@ static const unsigned long bcm96338_regs
-
- static const int bcm96338_irqs[] = {
- [IRQ_TIMER] = BCM_6338_TIMER_IRQ,
-+ [IRQ_SPI] = BCM_6338_SPI_IRQ,
- [IRQ_UART0] = BCM_6338_UART0_IRQ,
- [IRQ_DSL] = BCM_6338_DSL_IRQ,
- [IRQ_ENET0] = BCM_6338_ENET0_IRQ,
-@@ -127,6 +128,7 @@ static const unsigned long bcm96348_regs
-
- static const int bcm96348_irqs[] = {
- [IRQ_TIMER] = BCM_6348_TIMER_IRQ,
-+ [IRQ_SPI] = BCM_6348_SPI_IRQ,
- [IRQ_UART0] = BCM_6348_UART0_IRQ,
- [IRQ_DSL] = BCM_6348_DSL_IRQ,
- [IRQ_ENET0] = BCM_6348_ENET0_IRQ,
-@@ -169,6 +171,7 @@ static const unsigned long bcm96358_regs
-
- static const int bcm96358_irqs[] = {
- [IRQ_TIMER] = BCM_6358_TIMER_IRQ,
-+ [IRQ_SPI] = BCM_6358_SPI_IRQ,
- [IRQ_UART0] = BCM_6358_UART0_IRQ,
- [IRQ_DSL] = BCM_6358_DSL_IRQ,
- [IRQ_ENET0] = BCM_6358_ENET0_IRQ,
---- /dev/null
-+++ b/arch/mips/bcm63xx/dev-spi.c
-@@ -0,0 +1,60 @@
-+/*
-+ * 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>
-+ */
-+
-+#include <linux/init.h>
-+#include <linux/kernel.h>
-+#include <linux/platform_device.h>
-+
-+#include <bcm63xx_cpu.h>
-+#include <bcm63xx_dev_spi.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_spi_pdata spi_pdata = {
-+ .bus_num = 0,
-+ .num_chipselect = 4,
-+ .speed_hz = 50000000, /* Fclk */
-+};
-+
-+static struct platform_device bcm63xx_spi_device = {
-+ .name = "bcm63xx-spi",
-+ .id = 0,
-+ .num_resources = ARRAY_SIZE(spi_resources),
-+ .resource = spi_resources,
-+ .dev = {
-+ .platform_data = &spi_pdata,
-+ },
-+};
-+
-+int __init bcm63xx_spi_register(void)
-+{
-+ spi_resources[0].start = bcm63xx_regset_address(RSET_SPI);
-+ spi_resources[0].end = spi_resources[0].start;
-+ spi_resources[0].end += RSET_SPI_SIZE - 1;
-+ spi_resources[1].start = bcm63xx_get_irq_number(IRQ_SPI);
-+
-+ /* Fill in platform data */
-+ if (BCMCPU_IS_6338() || BCMCPU_IS_6348())
-+ spi_pdata.fifo_size = SPI_BCM_6338_SPI_MSG_DATA_SIZE;
-+
-+ if (BCMCPU_IS_6358())
-+ spi_pdata.fifo_size = SPI_BCM_6358_SPI_MSG_DATA_SIZE;
-+
-+ return platform_device_register(&bcm63xx_spi_device);
-+}
---- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_cpu.h
-+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_cpu.h
-@@ -108,6 +108,7 @@ enum bcm63xx_regs_set {
- #define RSET_WDT_SIZE 12
- #define RSET_ENET_SIZE 2048
- #define RSET_ENETDMA_SIZE 2048
-+#define RSET_SPI_SIZE 256
- #define RSET_UART_SIZE 24
- #define RSET_UDC_SIZE 256
- #define RSET_OHCI_SIZE 256
-@@ -209,7 +210,7 @@ enum bcm63xx_regs_set {
- #define BCM_6358_WDT_BASE (0xfffe005c)
- #define BCM_6358_UART0_BASE (0xfffe0100)
- #define BCM_6358_GPIO_BASE (0xfffe0080)
--#define BCM_6358_SPI_BASE (0xdeadbeef)
-+#define BCM_6358_SPI_BASE (0xfffe0800)
- #define BCM_6358_UDC0_BASE (0xfffe0400)
- #define BCM_6358_OHCI0_BASE (0xfffe1400)
- #define BCM_6358_OHCI_PRIV_BASE (0xdeadbeef)
-@@ -428,6 +429,7 @@ static inline unsigned long bcm63xx_regs
- */
- enum bcm63xx_irq {
- IRQ_TIMER = 0,
-+ IRQ_SPI,
- IRQ_UART0,
- IRQ_DSL,
- IRQ_UDC0,
-@@ -493,6 +495,7 @@ enum bcm63xx_irq {
- * 6348 irqs
- */
- #define BCM_6348_TIMER_IRQ (IRQ_INTERNAL_BASE + 0)
-+#define BCM_6348_SPI_IRQ (IRQ_INTERNAL_BASE + 1)
- #define BCM_6348_UART0_IRQ (IRQ_INTERNAL_BASE + 2)
- #define BCM_6348_DSL_IRQ (IRQ_INTERNAL_BASE + 4)
- #define BCM_6348_UDC0_IRQ (IRQ_INTERNAL_BASE + 6)
-@@ -517,6 +520,7 @@ enum bcm63xx_irq {
- * 6358 irqs
- */
- #define BCM_6358_TIMER_IRQ (IRQ_INTERNAL_BASE + 0)
-+#define BCM_6358_SPI_IRQ (IRQ_INTERNAL_BASE + 1)
- #define BCM_6358_UART0_IRQ (IRQ_INTERNAL_BASE + 2)
- #define BCM_6358_OHCI0_IRQ (IRQ_INTERNAL_BASE + 5)
- #define BCM_6358_ENET1_IRQ (IRQ_INTERNAL_BASE + 6)
---- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h
-+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h
-@@ -769,5 +769,117 @@
- #define DMIPSPLLCFG_N2_SHIFT 29
- #define DMIPSPLLCFG_N2_MASK (0x7 << DMIPSPLLCFG_N2_SHIFT)
-
-+/*************************************************************************
-+ * _REG relative to RSET_SPI
-+ *************************************************************************/
-+
-+/* BCM 6338 SPI core */
-+#define SPI_BCM_6338_SPI_CMD 0x00 /* 16-bits register */
-+#define SPI_BCM_6338_SPI_INT_STATUS 0x02
-+#define SPI_BCM_6338_SPI_MASK_INT_ST 0x03
-+#define SPI_BCM_6338_SPI_INT_MASK 0x04
-+#define SPI_BCM_6338_SPI_ST 0x05
-+#define SPI_BCM_6338_SPI_CLK_CFG 0x06
-+#define SPI_BCM_6338_SPI_FILL_BYTE 0x07
-+#define SPI_BCM_6338_SPI_MSG_TAIL 0x09
-+#define SPI_BCM_6338_SPI_RX_TAIL 0x0b
-+#define SPI_BCM_6338_SPI_MSG_CTL 0x40
-+#define SPI_BCM_6338_SPI_MSG_DATA 0x41
-+#define SPI_BCM_6338_SPI_MSG_DATA_SIZE 0x3f
-+#define SPI_BCM_6338_SPI_RX_DATA 0x80
-+#define SPI_BCM_6338_SPI_RX_DATA_SIZE 0x3f
-+
-+/* BCM 6348 SPI core */
-+#define SPI_BCM_6348_SPI_MASK_INT_ST 0x00
-+#define SPI_BCM_6348_SPI_INT_STATUS 0x01
-+#define SPI_BCM_6348_SPI_CMD 0x02 /* 16-bits register */
-+#define SPI_BCM_6348_SPI_FILL_BYTE 0x04
-+#define SPI_BCM_6348_SPI_CLK_CFG 0x05
-+#define SPI_BCM_6348_SPI_ST 0x06
-+#define SPI_BCM_6348_SPI_INT_MASK 0x07
-+#define SPI_BCM_6348_SPI_RX_TAIL 0x08
-+#define SPI_BCM_6348_SPI_MSG_TAIL 0x10
-+#define SPI_BCM_6348_SPI_MSG_DATA 0x40
-+#define SPI_BCM_6348_SPI_MSG_CTL 0x42
-+#define SPI_BCM_6348_SPI_MSG_DATA_SIZE 0x3f
-+#define SPI_BCM_6348_SPI_RX_DATA 0x80
-+#define SPI_BCM_6348_SPI_RX_DATA_SIZE 0x3f
-+
-+/* BCM 6358 SPI core */
-+#define SPI_BCM_6358_MSG_CTL 0x00 /* 16-bits register */
-+
-+#define SPI_BCM_6358_SPI_MSG_DATA 0x02
-+#define SPI_BCM_6358_SPI_MSG_DATA_SIZE 0x21e
-+
-+#define SPI_BCM_6358_SPI_RX_DATA 0x400
-+#define SPI_BCM_6358_SPI_RX_DATA_SIZE 0x220
-+
-+#define SPI_BCM_6358_SPI_CMD 0x700 /* 16-bits register */
-+
-+#define SPI_BCM_6358_SPI_INT_STATUS 0x702
-+#define SPI_BCM_6358_SPI_MASK_INT_ST 0x703
-+
-+#define SPI_BCM_6358_SPI_INT_MASK 0x704
-+
-+#define SPI_BCM_6358_SPI_STATUS 0x705
-+
-+#define SPI_BCM_6358_SPI_CLK_CFG 0x706
-+
-+#define SPI_BCM_6358_SPI_FILL_BYTE 0x707
-+#define SPI_BCM_6358_SPI_MSG_TAIL 0x709
-+#define SPI_BCM_6358_SPI_RX_TAIL 0x70B
-+
-+/* Shared SPI definitions */
-+
-+/* Message configuration */
-+#define SPI_FD_RW 0x00
-+#define SPI_HD_W 0x01
-+#define SPI_HD_R 0x02
-+#define SPI_BYTE_CNT_SHIFT 0
-+#define SPI_MSG_TYPE_SHIFT 14
-+
-+/* Command */
-+#define SPI_CMD_NOOP 0x01
-+#define SPI_CMD_SOFT_RESET 0x02
-+#define SPI_CMD_HARD_RESET 0x04
-+#define SPI_CMD_START_IMMEDIATE 0x08
-+#define SPI_CMD_COMMAND_SHIFT 0
-+#define SPI_CMD_COMMAND_MASK 0x000f
-+#define SPI_CMD_DEVICE_ID_SHIFT 4
-+#define SPI_CMD_PREPEND_BYTE_CNT_SHIFT 8
-+#define SPI_CMD_ONE_BYTE_SHIFT 11
-+#define SPI_CMD_ONE_WIRE_SHIFT 12
-+#define SPI_DEV_ID_0 0
-+#define SPI_DEV_ID_1 1
-+#define SPI_DEV_ID_2 2
-+#define SPI_DEV_ID_3 3
-+
-+/* Interrupt mask */
-+#define SPI_INTR_CMD_DONE 0x01
-+#define SPI_INTR_RX_OVERFLOW 0x02
-+#define SPI_INTR_TX_UNDERFLOW 0x04
-+#define SPI_INTR_TX_OVERFLOW 0x08
-+#define SPI_INTR_RX_UNDERFLOW 0x10
-+#define SPI_INTR_CLEAR_ALL 0x1f
-+
-+/* Status */
-+#define SPI_RX_EMPTY 0x02
-+#define SPI_CMD_BUSY 0x04
-+#define SPI_SERIAL_BUSY 0x08
-+
-+/* Clock configuration */
-+#define SPI_CLK_20MHZ 0x00
-+#define SPI_CLK_0_391MHZ 0x01
-+#define SPI_CLK_0_781MHZ 0x02 /* default */
-+#define SPI_CLK_1_563MHZ 0x03
-+#define SPI_CLK_3_125MHZ 0x04
-+#define SPI_CLK_6_250MHZ 0x05
-+#define SPI_CLK_12_50MHZ 0x06
-+#define SPI_CLK_25MHZ 0x07
-+#define SPI_CLK_MASK 0x07
-+#define SPI_SSOFFTIME_MASK 0x38
-+#define SPI_SSOFFTIME_SHIFT 3
-+#define SPI_BYTE_SWAP 0x80
-+
- #endif /* BCM63XX_REGS_H_ */
-
---- /dev/null
-+++ b/drivers/spi/bcm63xx_spi.c
-@@ -0,0 +1,628 @@
-+/*
-+ * Broadcom BCM63xx SPI controller support
-+ *
-+ * Copyright (C) 2009 Florian Fainelli <florian@openwrt.org>
-+ *
-+ * This program is free software; you can redistribute it and/or
-+ * modify it under the terms of the GNU General Public License
-+ * as published by the Free Software Foundation; either version 2
-+ * of the License, or (at your option) any later version.
-+ *
-+ * This program is distributed in the hope that it will be useful,
-+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
-+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-+ * GNU General Public License for more details.
-+ *
-+ * You should have received a copy of the GNU General Public License
-+ * along with this program; if not, write to the
-+ * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-+ */
-+
-+#include <linux/kernel.h>
-+#include <linux/init.h>
-+#include <linux/clk.h>
-+#include <linux/module.h>
-+#include <linux/platform_device.h>
-+#include <linux/delay.h>
-+#include <linux/interrupt.h>
-+#include <linux/spi/spi.h>
-+#include <linux/spi/spi_bitbang.h>
-+#include <linux/gpio.h>
-+#include <linux/completion.h>
-+#include <linux/err.h>
-+
-+#include <bcm63xx_io.h>
-+#include <bcm63xx_regs.h>
-+#include <bcm63xx_dev_spi.h>
-+
-+#define PFX KBUILD_MODNAME
-+#define DRV_VER "0.1.2"
-+
-+enum bcm63xx_regs_spi {
-+ SPI_CMD,
-+ SPI_INT_STATUS,
-+ SPI_INT_MASK_ST,
-+ SPI_INT_MASK,
-+ SPI_ST,
-+ SPI_CLK_CFG,
-+ SPI_FILL_BYTE,
-+ SPI_MSG_TAIL,
-+ SPI_RX_TAIL,
-+ SPI_MSG_CTL,
-+ SPI_MSG_DATA,
-+ SPI_RX_DATA,
-+};
-+
-+/*
-+ * register offsets
-+ */
-+static const unsigned long bcm96338_regs_spi[] = {
-+ [SPI_CMD] = SPI_BCM_6338_SPI_CMD,
-+ [SPI_INT_STATUS] = SPI_BCM_6338_SPI_INT_STATUS,
-+ [SPI_INT_MASK_ST] = SPI_BCM_6338_SPI_MASK_INT_ST,
-+ [SPI_INT_MASK] = SPI_BCM_6338_SPI_INT_MASK,
-+ [SPI_ST] = SPI_BCM_6338_SPI_ST,
-+ [SPI_CLK_CFG] = SPI_BCM_6338_SPI_CLK_CFG,
-+ [SPI_FILL_BYTE] = SPI_BCM_6338_SPI_FILL_BYTE,
-+ [SPI_MSG_TAIL] = SPI_BCM_6338_SPI_MSG_TAIL,
-+ [SPI_RX_TAIL] = SPI_BCM_6338_SPI_RX_TAIL,
-+ [SPI_MSG_CTL] = SPI_BCM_6338_SPI_MSG_CTL,
-+ [SPI_MSG_DATA] = SPI_BCM_6338_SPI_MSG_DATA,
-+ [SPI_RX_DATA] = SPI_BCM_6338_SPI_RX_DATA,
-+};
-+
-+static const unsigned long bcm96348_regs_spi[] = {
-+ [SPI_CMD] = SPI_BCM_6348_SPI_CMD,
-+ [SPI_INT_STATUS] = SPI_BCM_6348_SPI_INT_STATUS,
-+ [SPI_INT_MASK_ST] = SPI_BCM_6348_SPI_MASK_INT_ST,
-+ [SPI_INT_MASK] = SPI_BCM_6348_SPI_INT_MASK,
-+ [SPI_ST] = SPI_BCM_6348_SPI_ST,
-+ [SPI_CLK_CFG] = SPI_BCM_6348_SPI_CLK_CFG,
-+ [SPI_FILL_BYTE] = SPI_BCM_6348_SPI_FILL_BYTE,
-+ [SPI_MSG_TAIL] = SPI_BCM_6348_SPI_MSG_TAIL,
-+ [SPI_RX_TAIL] = SPI_BCM_6348_SPI_RX_TAIL,
-+ [SPI_MSG_CTL] = SPI_BCM_6348_SPI_MSG_CTL,
-+ [SPI_MSG_DATA] = SPI_BCM_6348_SPI_MSG_DATA,
-+ [SPI_RX_DATA] = SPI_BCM_6348_SPI_RX_DATA,
-+};
-+
-+static const unsigned long bcm96358_regs_spi[] = {
-+ [SPI_CMD] = SPI_BCM_6358_SPI_CMD,
-+ [SPI_INT_STATUS] = SPI_BCM_6358_SPI_INT_STATUS,
-+ [SPI_INT_MASK_ST] = SPI_BCM_6358_SPI_MASK_INT_ST,
-+ [SPI_INT_MASK] = SPI_BCM_6358_SPI_INT_MASK,
-+ [SPI_ST] = SPI_BCM_6358_SPI_STATUS,
-+ [SPI_CLK_CFG] = SPI_BCM_6358_SPI_CLK_CFG,
-+ [SPI_FILL_BYTE] = SPI_BCM_6358_SPI_FILL_BYTE,
-+ [SPI_MSG_TAIL] = SPI_BCM_6358_SPI_MSG_TAIL,
-+ [SPI_RX_TAIL] = SPI_BCM_6358_SPI_RX_TAIL,
-+ [SPI_MSG_CTL] = SPI_BCM_6358_MSG_CTL,
-+ [SPI_MSG_DATA] = SPI_BCM_6358_SPI_MSG_DATA,
-+ [SPI_RX_DATA] = SPI_BCM_6358_SPI_RX_DATA,
-+};
-+
-+
-+#ifdef BCMCPU_RUNTIME_DETECT
-+static const unsigned long *bcm63xx_regs_spi;
-+
-+static __init void bcm63xx_spi_regs_init(void)
-+{
-+ if (BCMCPU_IS_6338())
-+ bcm63xx_regs_spi = bcm96338_regs_spi;
-+ if (BCMCPU_IS_6348())
-+ bcm63xx_regs_spi = bcm96348_regs_spi;
-+ if (BCMCPU_IS_6358())
-+ bcm63xx_regs_spi = bcm96358_regs_spi;
-+}
-+#else
-+static __init void bcm63xx_spi_regs_init(void) { }
-+#endif
-+
-+static inline unsigned long bcm63xx_spireg(enum bcm63xx_regs_spi reg)
-+{
-+#ifdef BCMCPU_RUNTIME_DETECT
-+ return bcm63xx_regs_spi[reg];
-+#else
-+#ifdef CONFIG_BCM63XX_CPU_6338
-+switch (reg) {
-+ case SPI_CMD:
-+ return SPI_BCM_6338_SPI_CMD;
-+ case SPI_INT_STATUS:
-+ return SPI_BCM_6338_SPI_INT_STATUS;
-+ case SPI_INT_MASK_ST:
-+ return SPI_BCM_6338_SPI_MASK_INT_ST;
-+ case SPI_INT_MASK:
-+ return SPI_BCM_6338_SPI_INT_MASK;
-+ case SPI_ST:
-+ return SPI_BCM_6338_SPI_ST;
-+ case SPI_CLK_CFG:
-+ return SPI_BCM_6338_SPI_CLK_CFG;
-+ case SPI_FILL_BYTE:
-+ return SPI_BCM_6338_SPI_FILL_BYTE;
-+ case SPI_MSG_TAIL:
-+ return SPI_BCM_6338_SPI_MSG_TAIL;
-+ case SPI_RX_TAIL:
-+ return SPI_BCM_6338_SPI_RX_TAIL;
-+ case SPI_MSG_CTL:
-+ return SPI_BCM_6338_SPI_MSG_CTL;
-+ case SPI_MSG_DATA:
-+ return SPI_BCM_6338_SPI_MSG_DATA;
-+ case SPI_RX_DATA:
-+ return SPI_BCM_6338_SPI_RX_DATA;
-+}
-+#endif
-+#ifdef CONFIG_BCM63XX_CPU_6348
-+switch (reg) {
-+ case SPI_CMD:
-+ return SPI_BCM_6348_SPI_CMD;
-+ case SPI_INT_MASK_ST:
-+ return SPI_BCM_6348_SPI_MASK_INT_ST;
-+ case SPI_INT_MASK:
-+ return SPI_BCM_6348_SPI_INT_MASK;
-+ case SPI_INT_STATUS:
-+ return SPI_BCM_6348_SPI_INT_STATUS;
-+ case SPI_ST:
-+ return SPI_BCM_6348_SPI_ST;
-+ case SPI_CLK_CFG:
-+ return SPI_BCM_6348_SPI_CLK_CFG;
-+ case SPI_FILL_BYTE:
-+ return SPI_BCM_6348_SPI_FILL_BYTE;
-+ case SPI_MSG_TAIL:
-+ return SPI_BCM_6348_SPI_MSG_TAIL;
-+ case SPI_RX_TAIL:
-+ return SPI_BCM_6348_SPI_RX_TAIL;
-+ case SPI_MSG_CTL:
-+ return SPI_BCM_6348_SPI_MSG_CTL;
-+ case SPI_MSG_DATA:
-+ return SPI_BCM_6348_SPI_MSG_DATA;
-+ case SPI_RX_DATA:
-+ return SPI_BCM_6348_SPI_RX_DATA;
-+}
-+#endif
-+#ifdef CONFIG_BCM63XX_CPU_6358
-+switch (reg) {
-+ case SPI_CMD:
-+ return SPI_BCM_6358_SPI_CMD;
-+ case SPI_INT_STATUS:
-+ return SPI_BCM_6358_SPI_INT_STATUS;
-+ case SPI_INT_MASK_ST:
-+ return SPI_BCM_6358_SPI_MASK_INT_ST;
-+ case SPI_INT_MASK:
-+ return SPI_BCM_6358_SPI_INT_MASK;
-+ case SPI_ST:
-+ return SPI_BCM_6358_SPI_STATUS;
-+ case SPI_CLK_CFG:
-+ return SPI_BCM_6358_SPI_CLK_CFG;
-+ case SPI_FILL_BYTE:
-+ return SPI_BCM_6358_SPI_FILL_BYTE;
-+ case SPI_MSG_TAIL:
-+ return SPI_BCM_6358_SPI_MSG_TAIL;
-+ case SPI_RX_TAIL:
-+ return SPI_BCM_6358_SPI_RX_TAIL;
-+ case SPI_MSG_CTL:
-+ return SPI_BCM_6358_MSG_CTL;
-+ case SPI_MSG_DATA:
-+ return SPI_BCM_6358_SPI_MSG_DATA;
-+ case SPI_RX_DATA:
-+ return SPI_BCM_6358_SPI_RX_DATA;
-+}
-+#endif
-+#endif
-+ return 0;
-+}
-+
-+/*
-+ * helpers for the SPI register sets
-+ */
-+#define bcm_spi_readb(b,o) bcm_readb((b) + bcm63xx_spireg(o))
-+#define bcm_spi_readw(b,o) bcm_readw((b) + bcm63xx_spireg(o))
-+#define bcm_spi_writeb(v,b,o) bcm_writeb((v), (b) + bcm63xx_spireg(o))
-+#define bcm_spi_writew(v,b,o) bcm_writew((v), (b) + bcm63xx_spireg(o))
-+
-+struct bcm63xx_spi {
-+ /* bitbang has to be first */
-+ struct spi_bitbang bitbang;
-+ struct completion done;
-+
-+ void __iomem *regs;
-+ int irq;
-+
-+ /* Platform data */
-+ u32 speed_hz;
-+ unsigned fifo_size;
-+
-+ /* Data buffers */
-+ const unsigned char *tx_ptr;
-+ unsigned char *rx_ptr;
-+ int remaining_bytes;
-+
-+ struct clk *clk;
-+ struct resource *ioarea;
-+ struct platform_device *pdev;
-+};
-+
-+static void bcm63xx_spi_chipselect(struct spi_device *spi, int is_on)
-+{
-+ struct bcm63xx_spi *bs = spi_master_get_devdata(spi->master);
-+ u16 val;
-+
-+ val = bcm_spi_readw(bs->regs, SPI_CMD);
-+ if (is_on == BITBANG_CS_INACTIVE)
-+ val |= SPI_CMD_NOOP;
-+ else if (is_on == BITBANG_CS_ACTIVE)
-+ val |= (spi->chip_select << SPI_CMD_DEVICE_ID_SHIFT);
-+
-+ bcm_spi_writew(val, bs->regs, SPI_CMD);
-+}
-+
-+static int bcm63xx_spi_setup_transfer(struct spi_device *spi,
-+ struct spi_transfer *t)
-+{
-+ u8 bits_per_word;
-+ u8 clk_cfg;
-+ u32 hz;
-+ unsigned int div;
-+
-+ struct bcm63xx_spi *bs = spi_master_get_devdata(spi->master);
-+
-+ bits_per_word = (t) ? t->bits_per_word : spi->bits_per_word;
-+ hz = (t) ? t->speed_hz : spi->max_speed_hz;
-+ if (bits_per_word != 8) {
-+ dev_err(&spi->dev, "%s, unsupported bits_per_word=%d\n",
-+ __func__, bits_per_word);
-+ return -EINVAL;
-+ }
-+
-+ if (spi->chip_select > spi->master->num_chipselect) {
-+ dev_err(&spi->dev, "%s, unsupported slave %d\n",
-+ __func__, spi->chip_select);
-+ return -EINVAL;
-+ }
-+
-+ /* Check clock setting */
-+ div = (bs->speed_hz / hz);
-+ switch (div) {
-+ case 2:
-+ clk_cfg = SPI_CLK_25MHZ;
-+ break;
-+ case 4:
-+ clk_cfg = SPI_CLK_12_50MHZ;
-+ break;
-+ case 8:
-+ clk_cfg = SPI_CLK_6_250MHZ;
-+ break;
-+ case 16:
-+ clk_cfg = SPI_CLK_3_125MHZ;
-+ break;
-+ case 32:
-+ clk_cfg = SPI_CLK_1_563MHZ;
-+ break;
-+ case 128:
-+ clk_cfg = SPI_CLK_0_781MHZ;
-+ break;
-+ case 64:
-+ default:
-+ /* Set to slowest mode for compatibility */
-+ clk_cfg = SPI_CLK_0_781MHZ;
-+ break;
-+ }
-+
-+ bcm_spi_writeb(clk_cfg, bs->regs, SPI_CLK_CFG);
-+ dev_dbg(&spi->dev, "Setting clock register to %d (hz %d, cmd %02x)\n",
-+ div, hz, clk_cfg);
-+
-+ return 0;
-+}
-+
-+/* the spi->mode bits understood by this driver: */
-+#define MODEBITS (SPI_CPOL | SPI_CPHA)
-+
-+static int bcm63xx_spi_setup(struct spi_device *spi)
-+{
-+ struct spi_bitbang *bitbang;
-+ struct bcm63xx_spi *bs;
-+ int retval;
-+
-+ bs = spi_master_get_devdata(spi->master);
-+ bitbang = &bs->bitbang;
-+
-+ if (!spi->bits_per_word)
-+ spi->bits_per_word = 8;
-+
-+ if (spi->mode & ~MODEBITS) {
-+ dev_err(&spi->dev, "%s, unsupported mode bits %x\n",
-+ __func__, spi->mode & ~MODEBITS);
-+ return -EINVAL;
-+ }
-+
-+ retval = bcm63xx_spi_setup_transfer(spi, NULL);
-+ if (retval < 0) {
-+ dev_err(&spi->dev, "setup: unsupported mode bits %x\n",
-+ spi->mode & ~MODEBITS);
-+ return retval;
-+ }
-+
-+ dev_dbg(&spi->dev, "%s, mode %d, %u bits/w, %u nsec/bit\n",
-+ __func__, spi->mode & MODEBITS, spi->bits_per_word, 0);
-+
-+ return 0;
-+}
-+
-+/* Fill the TX FIFO with as many bytes as possible */
-+static void bcm63xx_spi_fill_tx_fifo(struct bcm63xx_spi *bs)
-+{
-+ u8 tail;
-+
-+ /* Fill the Tx FIFO with as many bytes as possible */
-+ tail = bcm_spi_readb(bs->regs, SPI_MSG_TAIL);
-+ while ((tail < bs->fifo_size) && (bs->remaining_bytes > 0)) {
-+ if (bs->tx_ptr)
-+ bcm_spi_writeb(*bs->tx_ptr++, bs->regs, SPI_MSG_DATA);
-+ else
-+ bcm_spi_writeb(0, bs->regs, SPI_MSG_DATA);
-+ bs->remaining_bytes--;
-+ tail = bcm_spi_readb(bs->regs, SPI_MSG_TAIL);
-+ }
-+}
-+
-+static int bcm63xx_txrx_bufs(struct spi_device *spi, struct spi_transfer *t)
-+{
-+ struct bcm63xx_spi *bs = spi_master_get_devdata(spi->master);
-+ u8 msg_ctl;
-+ u16 cmd;
-+
-+ dev_dbg(&spi->dev, "txrx: tx %p, rx %p, len %d\n",
-+ t->tx_buf, t->rx_buf, t->len);
-+
-+ /* Transmitter is inhibited */
-+ bs->tx_ptr = t->tx_buf;
-+ bs->rx_ptr = t->rx_buf;
-+ bs->remaining_bytes = t->len;
-+ init_completion(&bs->done);
-+
-+ bcm63xx_spi_fill_tx_fifo(bs);
-+
-+ /* Enable the command done interrupt which
-+ * we use to determine completion of a command */
-+ bcm_spi_writeb(SPI_INTR_CMD_DONE, bs->regs, SPI_INT_MASK);
-+
-+ /* Fill in the Message control register */
-+ msg_ctl = bcm_spi_readb(bs->regs, SPI_MSG_CTL);
-+ msg_ctl |= (t->len << SPI_BYTE_CNT_SHIFT);
-+ msg_ctl |= (SPI_FD_RW << SPI_MSG_TYPE_SHIFT);
-+ bcm_spi_writeb(msg_ctl, bs->regs, SPI_MSG_CTL);
-+
-+ /* Issue the transfer */
-+ cmd = bcm_spi_readw(bs->regs, SPI_CMD);
-+ cmd |= SPI_CMD_START_IMMEDIATE;
-+ cmd |= (0 << SPI_CMD_PREPEND_BYTE_CNT_SHIFT);
-+ bcm_spi_writew(cmd, bs->regs, SPI_CMD);
-+
-+ wait_for_completion(&bs->done);
-+
-+ /* Disable the CMD_DONE interrupt */
-+ bcm_spi_writeb(~(SPI_INTR_CMD_DONE), bs->regs, SPI_INT_MASK);
-+
-+ return t->len - bs->remaining_bytes;
-+}
-+
-+/* This driver supports single master mode only. Hence
-+ * CMD_DONE is the only interrupt we care about
-+ */
-+static irqreturn_t bcm63xx_spi_interrupt(int irq, void *dev_id)
-+{
-+ struct spi_master *master = (struct spi_master *)dev_id;
-+ struct bcm63xx_spi *bs = spi_master_get_devdata(master);
-+ u8 intr;
-+ u16 cmd;
-+
-+ /* Read interupts and clear them immediately */
-+ intr = bcm_spi_readb(bs->regs, SPI_INT_STATUS);
-+ bcm_spi_writeb(SPI_INTR_CLEAR_ALL, bs->regs, SPI_INT_MASK);
-+
-+ /* A tansfer completed */
-+ if (intr & SPI_INTR_CMD_DONE) {
-+ u8 rx_empty;
-+
-+ rx_empty = bcm_spi_readb(bs->regs, SPI_ST);
-+ /* Read out all the data */
-+ while ((rx_empty & SPI_RX_EMPTY) == 0) {
-+ u8 data;
-+
-+ data = bcm_spi_readb(bs->regs, SPI_RX_DATA);
-+ if (bs->rx_ptr)
-+ *bs->rx_ptr++ = data;
-+
-+ rx_empty = bcm_spi_readb(bs->regs, SPI_RX_EMPTY);
-+ }
-+
-+ /* See if there is more data to send */
-+ if (bs->remaining_bytes > 0) {
-+ bcm63xx_spi_fill_tx_fifo(bs);
-+
-+ /* Start the transfer */
-+ cmd = bcm_spi_readw(bs->regs, SPI_CMD);
-+ cmd |= SPI_CMD_START_IMMEDIATE;
-+ cmd |= (0 << SPI_CMD_PREPEND_BYTE_CNT_SHIFT);
-+ bcm_spi_writew(cmd, bs->regs, SPI_CMD);
-+ } else
-+ complete(&bs->done);
-+ }
-+
-+ return IRQ_HANDLED;
-+}
-+
-+
-+static int __init bcm63xx_spi_probe(struct platform_device *pdev)
-+{
-+ struct resource *r;
-+ struct bcm63xx_spi_pdata *pdata = pdev->dev.platform_data;
-+ int irq;
-+ struct spi_master *master;
-+ struct clk *clk;
-+ struct bcm63xx_spi *bs;
-+ int ret;
-+
-+ r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-+ if (!r) {
-+ ret = -ENXIO;
-+ goto out;
-+ }
-+
-+ irq = platform_get_irq(pdev, 0);
-+ if (irq < 0) {
-+ ret = -ENXIO;
-+ goto out;
-+ }
-+
-+ bcm63xx_spi_regs_init();
-+
-+ clk = clk_get(&pdev->dev, "spi");
-+ if (IS_ERR(clk)) {
-+ dev_err(&pdev->dev, "No clock for device\n");
-+ ret = -ENODEV;
-+ goto out;
-+ }
-+
-+ master = spi_alloc_master(&pdev->dev, sizeof(struct bcm63xx_spi));
-+ if (!master) {
-+ ret = -ENOMEM;
-+ goto out_free;
-+ }
-+
-+ bs = spi_master_get_devdata(master);
-+ bs->bitbang.master = spi_master_get(master);
-+ bs->bitbang.chipselect = bcm63xx_spi_chipselect;
-+ bs->bitbang.setup_transfer = bcm63xx_spi_setup_transfer;
-+ bs->bitbang.txrx_bufs = bcm63xx_txrx_bufs;
-+ bs->bitbang.master->setup = bcm63xx_spi_setup;
-+ init_completion(&bs->done);
-+
-+ platform_set_drvdata(pdev, master);
-+ bs->pdev = pdev;
-+
-+ if (!request_mem_region(r->start,
-+ r->end - r->start, PFX)) {
-+ ret = -ENXIO;
-+ goto out_free;
-+ }
-+
-+ bs->regs = ioremap_nocache(r->start, r->end - r->start);
-+ if (!bs->regs) {
-+ printk(KERN_ERR PFX " unable to ioremap regs\n");
-+ ret = -ENOMEM;
-+ goto out_free;
-+ }
-+ bs->irq = irq;
-+ bs->clk = clk;
-+ bs->fifo_size = pdata->fifo_size;
-+
-+ ret = request_irq(irq, bcm63xx_spi_interrupt, 0,
-+ pdev->name, master);
-+ if (ret) {
-+ printk(KERN_ERR PFX " unable to request irq\n");
-+ goto out_unmap;
-+ }
-+
-+ master->bus_num = pdata->bus_num;
-+ master->num_chipselect = pdata->num_chipselect;
-+ bs->speed_hz = pdata->speed_hz;
-+
-+ /* Initialize hardware */
-+ clk_enable(bs->clk);
-+ bcm_spi_writeb(SPI_INTR_CLEAR_ALL, bs->regs, SPI_INT_MASK);
-+
-+ dev_info(&pdev->dev, " at 0x%08x (irq %d, FIFOs size %d) v%s\n",
-+ r->start, irq, bs->fifo_size, DRV_VER);
-+
-+ ret = spi_bitbang_start(&bs->bitbang);
-+ if (ret) {
-+ dev_err(&pdev->dev, "spi_bitbang_start FAILED\n");
-+ goto out_reset_hw;
-+ }
-+
-+ return ret;
-+
-+out_reset_hw:
-+ clk_disable(clk);
-+ free_irq(irq, master);
-+out_unmap:
-+ iounmap(bs->regs);
-+out_free:
-+ clk_put(clk);
-+ spi_master_put(master);
-+out:
-+ return ret;
-+}
-+
-+static int __exit bcm63xx_spi_remove(struct platform_device *pdev)
-+{
-+ struct spi_master *master = platform_get_drvdata(pdev);
-+ struct bcm63xx_spi *bs = spi_master_get_devdata(master);
-+
-+ spi_bitbang_stop(&bs->bitbang);
-+ clk_disable(bs->clk);
-+ clk_put(bs->clk);
-+ free_irq(bs->irq, master);
-+ iounmap(bs->regs);
-+ platform_set_drvdata(pdev, 0);
-+ spi_master_put(bs->bitbang.master);
-+
-+ return 0;
-+}
-+
-+#ifdef CONFIG_PM
-+static int bcm63xx_spi_suspend(struct platform_device *pdev, pm_message_t mesg)
-+{
-+ struct spi_master *master = platform_get_drvdata(pdev);
-+ struct bcm63xx_spi *bs = spi_master_get_devdata(master);
-+
-+ clk_disable(bs->clk);
-+
-+ return 0;
-+}
-+
-+static int bcm63xx_spi_resume(struct platform_device *pdev)
-+{
-+ struct bcm63xx_spi *bs = spi_master_get_devdata(master);
-+ struct bcm63xx_spi *bs = spi_master_get_devdata(master);
-+
-+ clk_enable(bs->clk);
-+
-+ return 0;
-+}
-+#else
-+#define bcm63xx_spi_suspend NULL
-+#define bcm63xx_spi_resume NULL
-+#endif
-+
-+static struct platform_driver bcm63xx_spi_driver = {
-+ .driver = {
-+ .name = "bcm63xx-spi",
-+ .owner = THIS_MODULE,
-+ },
-+ .probe = bcm63xx_spi_probe,
-+ .remove = bcm63xx_spi_remove,
-+ .suspend = bcm63xx_spi_suspend,
-+ .resume = bcm63xx_spi_resume,
-+};
-+
-+
-+static int __init bcm63xx_spi_init(void)
-+{
-+ return platform_driver_register(&bcm63xx_spi_driver);
-+}
-+
-+static void __exit bcm63xx_spi_exit(void)
-+{
-+ platform_driver_unregister(&bcm63xx_spi_driver);
-+}
-+
-+module_init(bcm63xx_spi_init);
-+module_exit(bcm63xx_spi_exit);
-+
-+MODULE_ALIAS("platform:bcm63xx_spi");
-+MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>");
-+MODULE_DESCRIPTION("Broadcom BCM63xx SPI Controller driver");
-+MODULE_LICENSE("GPL");
-+MODULE_VERSION(DRV_VER);
---- a/drivers/spi/Kconfig
-+++ b/drivers/spi/Kconfig
-@@ -60,6 +60,13 @@ config SPI_ATMEL
- This selects a driver for the Atmel SPI Controller, present on
- many AT32 (AVR32) and AT91 (ARM) chips.
-
-+config SPI_BCM63XX
-+ tristate "Broadcom BCM63xx SPI controller"
-+ depends on BCM63XX
-+ select SPI_BITBANG
-+ help
-+ This is the SPI controller master driver for Broadcom BCM63xx SoC.
-+
- config SPI_BFIN
- tristate "SPI controller driver for ADI Blackfin5xx"
- depends on BLACKFIN
---- a/drivers/spi/Makefile
-+++ b/drivers/spi/Makefile
-@@ -34,6 +34,7 @@ obj-$(CONFIG_SPI_TXX9) += spi_txx9.o
- obj-$(CONFIG_SPI_XILINX) += xilinx_spi.o
- obj-$(CONFIG_SPI_SH_SCI) += spi_sh_sci.o
- obj-$(CONFIG_SPI_STMP3XXX) += spi_stmp.o
-+obj-$(CONFIG_SPI_BCM63XX) += bcm63xx_spi.o
- # ... add above this line ...
-
- # SPI protocol drivers (device/link on bus)
---- /dev/null
-+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_spi.h
-@@ -0,0 +1,15 @@
-+#ifndef BCM63XX_DEV_SPI_H
-+#define BCM63XX_DEV_SPI_H
-+
-+#include <linux/types.h>
-+
-+int __init bcm63xx_spi_register(void);
-+
-+struct bcm63xx_spi_pdata {
-+ unsigned int fifo_size;
-+ int bus_num;
-+ int num_chipselect;
-+ u32 speed_hz;
-+};
-+
-+#endif /* BCM63XX_DEV_SPI_H */
---- a/arch/mips/bcm63xx/Makefile
-+++ b/arch/mips/bcm63xx/Makefile
-@@ -1,6 +1,6 @@
- obj-y += clk.o cpu.o cs.o gpio.o irq.o prom.o setup.o timer.o \
- dev-dsp.o dev-enet.o dev-pcmcia.o dev-uart.o dev-wdt.o \
-- dev-usb-ohci.o dev-usb-ehci.o dev-usb-udc.o
-+ dev-usb-ohci.o dev-usb-ehci.o dev-usb-udc.o dev-spi.o
- obj-$(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
-@@ -30,6 +30,7 @@
- #include <bcm63xx_dev_usb_ohci.h>
- #include <bcm63xx_dev_usb_ehci.h>
- #include <bcm63xx_dev_usb_udc.h>
-+#include <bcm63xx_dev_spi.h>
- #include <board_bcm963xx.h>
-
- #define PFX "board_bcm963xx: "
-@@ -1509,6 +1510,9 @@ int __init board_register_devices(void)
- if (board.has_udc0)
- bcm63xx_udc_register();
-
-+ if (!BCMCPU_IS_6345())
-+ bcm63xx_spi_register();
-+
- /* Generate MAC address for WLAN and
- * register our SPROM */
- #ifdef CONFIG_SSB_PCIHOST
projects / openwrt / svn-archive / archive.git / blobdiff