diff options
author | Felix Fietkau <nbd@openwrt.org> | 2011-04-17 18:39:46 +0000 |
---|---|---|
committer | Felix Fietkau <nbd@openwrt.org> | 2011-04-17 18:39:46 +0000 |
commit | 026165ed70cc9b028e8682195a4e94fb5643231e (patch) | |
tree | 58251aa5537a1113c94ee02201413aed4e1697cb /target/linux/brcm63xx/patches-2.6.35/240-spi.patch | |
parent | 2a894af94260a39d8a1fd449c3f27bbb9ed0b33d (diff) | |
download | master-187ad058-026165ed70cc9b028e8682195a4e94fb5643231e.tar.gz master-187ad058-026165ed70cc9b028e8682195a4e94fb5643231e.tar.bz2 master-187ad058-026165ed70cc9b028e8682195a4e94fb5643231e.zip |
brcm63xx: remove patches/configs for 2.6.35
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@26709 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/brcm63xx/patches-2.6.35/240-spi.patch')
-rw-r--r-- | target/linux/brcm63xx/patches-2.6.35/240-spi.patch | 1002 |
1 files changed, 0 insertions, 1002 deletions
diff --git a/target/linux/brcm63xx/patches-2.6.35/240-spi.patch b/target/linux/brcm63xx/patches-2.6.35/240-spi.patch deleted file mode 100644 index 32c2d05c1c..0000000000 --- a/target/linux/brcm63xx/patches-2.6.35/240-spi.patch +++ /dev/null @@ -1,1002 +0,0 @@ ---- a/arch/mips/bcm63xx/cpu.c -+++ b/arch/mips/bcm63xx/cpu.c -@@ -56,6 +56,7 @@ 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, -@@ -130,6 +131,7 @@ 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, -@@ -173,6 +175,7 @@ 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_UART1] = BCM_6358_UART1_IRQ, - [IRQ_DSL] = BCM_6358_DSL_IRQ, ---- /dev/null -+++ b/arch/mips/bcm63xx/dev-spi.c -@@ -0,0 +1,128 @@ -+/* -+ * 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_spi.h> -+#include <bcm63xx_regs.h> -+ -+#ifdef BCMCPU_RUNTIME_DETECT -+/* -+ * 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, -+}; -+ -+const unsigned long *bcm63xx_regs_spi; -+EXPORT_SYMBOL(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 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 = 8, -+ .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; -+ -+ bcm63xx_spi_regs_init(); -+ -+ 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 -@@ -109,6 +109,7 @@ 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 -@@ -214,7 +215,7 @@ enum bcm63xx_regs_set { - #define BCM_6358_UART0_BASE (0xfffe0100) - #define BCM_6358_UART1_BASE (0xfffe0120) - #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) -@@ -441,6 +442,7 @@ static inline unsigned long bcm63xx_regs - */ - enum bcm63xx_irq { - IRQ_TIMER = 0, -+ IRQ_SPI, - IRQ_UART0, - IRQ_UART1, - IRQ_DSL, -@@ -507,6 +509,7 @@ 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) -@@ -531,6 +534,7 @@ 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_UART1_IRQ (IRQ_INTERNAL_BASE + 3) - #define BCM_6358_OHCI0_IRQ (IRQ_INTERNAL_BASE + 5) ---- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h -+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h -@@ -769,4 +769,116 @@ - #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 +1,496 @@ -+/* -+ * Broadcom BCM63xx SPI controller support -+ * -+ * Copyright (C) 2009 Florian Fainelli <florian@openwrt.org> -+ * Copyright (C) 2010 Tanguy Bouzeloc <tanguy.bouzeloc@efixo.com> -+ * -+ * 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/completion.h> -+#include <linux/err.h> -+ -+#include <bcm63xx_dev_spi.h> -+ -+#define PFX KBUILD_MODNAME -+#define DRV_VER "0.1.2" -+ -+struct bcm63xx_spi { -+ spinlock_t lock; -+ int stopping; -+ 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; -+ -+ /* data iomem */ -+ u8 __iomem *tx_io; -+ const u8 __iomem *rx_io; -+ -+ int remaining_bytes; -+ -+ struct clk *clk; -+ struct platform_device *pdev; -+}; -+ -+static inline u8 bcm_spi_readb(struct bcm63xx_spi *bs, -+ unsigned int offset) -+{ -+ return bcm_readw(bs->regs + bcm63xx_spireg(offset)); -+} -+ -+static inline u16 bcm_spi_readw(struct bcm63xx_spi *bs, -+ unsigned int offset) -+{ -+ return bcm_readw(bs->regs + bcm63xx_spireg(offset)); -+} -+ -+static inline void bcm_spi_writeb(struct bcm63xx_spi *bs, -+ u8 value, unsigned int offset) -+{ -+ bcm_writeb(value, bs->regs + bcm63xx_spireg(offset)); -+} -+ -+static inline void bcm_spi_writew(struct bcm63xx_spi *bs, -+ u16 value, unsigned int offset) -+{ -+ bcm_writew(value, bs->regs + bcm63xx_spireg(offset)); -+} -+ -+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 64: -+ clk_cfg = SPI_CLK_0_781MHZ; -+ break; -+ case 128: -+ default: -+ /* Set to slowest mode for compatibility */ -+ clk_cfg = SPI_CLK_0_391MHZ; -+ break; -+ } -+ -+ bcm_spi_writeb(bs, clk_cfg, 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 bcm63xx_spi *bs; -+ int ret; -+ -+ bs = spi_master_get_devdata(spi->master); -+ -+ if (bs->stopping) -+ return -ESHUTDOWN; -+ -+ 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; -+ } -+ -+ ret = bcm63xx_spi_setup_transfer(spi, NULL); -+ if (ret < 0) { -+ dev_err(&spi->dev, "setup: unsupported mode bits %x\n", -+ spi->mode & ~MODEBITS); -+ return ret; -+ } -+ -+ 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 size; -+ -+ /* Fill the Tx FIFO with as many bytes as possible */ -+ size = bs->remaining_bytes < bs->fifo_size ? bs->remaining_bytes : -+ bs->fifo_size; -+ memcpy_toio(bs->tx_io, bs->tx_ptr, size); -+ bs->remaining_bytes -= size; -+} -+ -+static int bcm63xx_txrx_bufs(struct spi_device *spi, struct spi_transfer *t) -+{ -+ struct bcm63xx_spi *bs = spi_master_get_devdata(spi->master); -+ u16 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; -+ init_completion(&bs->done); -+ -+ if (t->tx_buf) { -+ bs->remaining_bytes = t->len; -+ bcm63xx_spi_fill_tx_fifo(bs); -+ } -+ -+ /* Enable the command done interrupt which -+ * we use to determine completion of a command */ -+ bcm_spi_writeb(bs, SPI_INTR_CMD_DONE, SPI_INT_MASK); -+ -+ /* Fill in the Message control register */ -+ msg_ctl = (t->len << SPI_BYTE_CNT_SHIFT); -+ -+ if (t->rx_buf && t->tx_buf) -+ msg_ctl |= (SPI_FD_RW << SPI_MSG_TYPE_SHIFT); -+ else if (t->rx_buf) -+ msg_ctl |= (SPI_HD_R << SPI_MSG_TYPE_SHIFT); -+ else if (t->tx_buf) -+ msg_ctl |= (SPI_HD_W << SPI_MSG_TYPE_SHIFT); -+ -+ bcm_spi_writew(bs, msg_ctl, SPI_MSG_CTL); -+ -+ /* Issue the transfer */ -+ cmd = SPI_CMD_START_IMMEDIATE; -+ cmd |= (0 << SPI_CMD_PREPEND_BYTE_CNT_SHIFT); -+ cmd |= (spi->chip_select << SPI_CMD_DEVICE_ID_SHIFT); -+ bcm_spi_writew(bs, cmd, SPI_CMD); -+ wait_for_completion(&bs->done); -+ -+ /* Disable the CMD_DONE interrupt */ -+ bcm_spi_writeb(bs, 0, SPI_INT_MASK); -+ -+ return t->len - bs->remaining_bytes; -+} -+ -+static int bcm63xx_transfer(struct spi_device *spi, struct spi_message *m) -+{ -+ struct bcm63xx_spi *bs = spi_master_get_devdata(spi->master); -+ struct spi_transfer *t; -+ int ret = 0; -+ -+ if (unlikely(list_empty(&m->transfers))) -+ return -EINVAL; -+ -+ if (bs->stopping) -+ return -ESHUTDOWN; -+ -+ list_for_each_entry(t, &m->transfers, transfer_list) { -+ ret += bcm63xx_txrx_bufs(spi, t); -+ } -+ -+ m->complete(m->context); -+ -+ return ret; -+} -+ -+/* 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, SPI_INT_STATUS); -+ bcm_spi_writeb(bs, SPI_INTR_CLEAR_ALL, SPI_INT_STATUS); -+ bcm_spi_writeb(bs, 0, SPI_INT_MASK); -+ -+ /* A tansfer completed */ -+ if (intr & SPI_INTR_CMD_DONE) { -+ u8 rx_tail; -+ -+ rx_tail = bcm_spi_readb(bs, SPI_RX_TAIL); -+ -+ /* Read out all the data */ -+ if (rx_tail) -+ memcpy_fromio(bs->rx_ptr, bs->rx_io, rx_tail); -+ -+ /* See if there is more data to send */ -+ if (bs->remaining_bytes > 0) { -+ bcm63xx_spi_fill_tx_fifo(bs); -+ -+ /* Start the transfer */ -+ bcm_spi_writew(bs, SPI_HD_W << SPI_MSG_TYPE_SHIFT, -+ SPI_MSG_CTL); -+ cmd = bcm_spi_readw(bs, SPI_CMD); -+ cmd |= SPI_CMD_START_IMMEDIATE; -+ cmd |= (0 << SPI_CMD_PREPEND_BYTE_CNT_SHIFT); -+ bcm_spi_writeb(bs, SPI_INTR_CMD_DONE, SPI_INT_MASK); -+ bcm_spi_writew(bs, cmd, SPI_CMD); -+ } else { -+ complete(&bs->done); -+ } -+ } -+ -+ return IRQ_HANDLED; -+} -+ -+ -+static int __init bcm63xx_spi_probe(struct platform_device *pdev) -+{ -+ struct resource *r; -+ struct device *dev = &pdev->dev; -+ 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) { -+ dev_err(dev, "no iomem\n"); -+ ret = -ENXIO; -+ goto out; -+ } -+ -+ irq = platform_get_irq(pdev, 0); -+ if (irq < 0) { -+ dev_err(dev, "no irq\n"); -+ ret = -ENXIO; -+ goto out; -+ } -+ -+ clk = clk_get(dev, "spi"); -+ if (IS_ERR(clk)) { -+ dev_err(dev, "no clock for device\n"); -+ ret = -ENODEV; -+ goto out; -+ } -+ -+ master = spi_alloc_master(dev, sizeof(*bs)); -+ if (!master) { -+ dev_err(dev, "out of memory\n"); -+ ret = -ENOMEM; -+ goto out_free; -+ } -+ -+ bs = spi_master_get_devdata(master); -+ init_completion(&bs->done); -+ -+ platform_set_drvdata(pdev, master); -+ bs->pdev = pdev; -+ -+ if (!request_mem_region(r->start, r->end - r->start, PFX)) { -+ dev_err(dev, "iomem request failed\n"); -+ ret = -ENXIO; -+ goto out_put_master; -+ } -+ -+ bs->regs = ioremap_nocache(r->start, r->end - r->start); -+ if (!bs->regs) { -+ dev_err(dev, "unable to ioremap regs\n"); -+ ret = -ENOMEM; -+ goto out_put_master; -+ } -+ 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) { -+ dev_err(dev, "unable to request irq\n"); -+ goto out_unmap; -+ } -+ -+ master->bus_num = pdata->bus_num; -+ master->num_chipselect = pdata->num_chipselect; -+ master->setup = bcm63xx_spi_setup; -+ master->transfer = bcm63xx_transfer; -+ bs->speed_hz = pdata->speed_hz; -+ bs->stopping = 0; -+ bs->tx_io = (u8*)(bs->regs + bcm63xx_spireg(SPI_MSG_DATA)); -+ bs->rx_io = (const u8*)(bs->regs + bcm63xx_spireg(SPI_RX_DATA)); -+ spin_lock_init(&bs->lock); -+ -+ /* Initialize hardware */ -+ clk_enable(bs->clk); -+ bcm_spi_writeb(bs, SPI_INTR_CLEAR_ALL, SPI_INT_STATUS); -+ -+ /* register and we are done */ -+ ret = spi_register_master(master); -+ if (ret) { -+ dev_err(dev, "spi register failed\n"); -+ goto out_reset_hw; -+ } -+ -+ dev_info(dev, "at 0x%08x (irq %d, FIFOs size %d) v%s\n", -+ r->start, irq, bs->fifo_size, DRV_VER); -+ -+ return 0; -+ -+out_reset_hw: -+ clk_disable(clk); -+ free_irq(irq, master); -+out_unmap: -+ iounmap(bs->regs); -+out_put_master: -+ spi_master_put(master); -+out_free: -+ clk_put(clk); -+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); -+ struct resource *r = platform_get_resource(pdev, IORESOURCE_MEM, 0); -+ -+ /* reset spi block */ -+ bcm_spi_writeb(bs, 0, SPI_INT_MASK); -+ spin_lock(&bs->lock); -+ bs->stopping = 1; -+ -+ /* HW shutdown */ -+ clk_disable(bs->clk); -+ clk_put(bs->clk); -+ -+ spin_unlock(&bs->lock); -+ -+ free_irq(bs->irq, master); -+ iounmap(bs->regs); -+ release_mem_region(r->start, r->end - r->start); -+ platform_set_drvdata(pdev, 0); -+ spi_unregister_master(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 spi_master *master = platform_get_drvdata(pdev); -+ 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 = __exit_p(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_AUTHOR("Tanguy Bouzeloc <tanguy.bouzeloc@efixo.com>"); -+MODULE_DESCRIPTION("Broadcom BCM63xx SPI Controller driver"); -+MODULE_LICENSE("GPL"); -+MODULE_VERSION(DRV_VER); ---- a/drivers/spi/Kconfig -+++ b/drivers/spi/Kconfig -@@ -60,6 +60,12 @@ 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 -+ 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 -@@ -48,6 +48,7 @@ obj-$(CONFIG_SPI_SH_SCI) += spi_sh_sci. - obj-$(CONFIG_SPI_SH_MSIOF) += spi_sh_msiof.o - obj-$(CONFIG_SPI_STMP3XXX) += spi_stmp.o - obj-$(CONFIG_SPI_NUC900) += spi_nuc900.o -+obj-$(CONFIG_SPI_BCM63XX) += bcm63xx_spi.o - - # special build for s3c24xx spi driver with fiq support - spi_s3c24xx_hw-y := spi_s3c24xx.o ---- /dev/null -+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_spi.h -@@ -0,0 +1,126 @@ -+#ifndef BCM63XX_DEV_SPI_H -+#define BCM63XX_DEV_SPI_H -+ -+#include <linux/types.h> -+#include <bcm63xx_io.h> -+#include <bcm63xx_regs.h> -+ -+int __init bcm63xx_spi_register(void); -+ -+struct bcm63xx_spi_pdata { -+ unsigned int fifo_size; -+ int bus_num; -+ int num_chipselect; -+ u32 speed_hz; -+}; -+ -+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, -+}; -+ -+static inline unsigned long bcm63xx_spireg(enum bcm63xx_regs_spi reg) -+{ -+#ifdef BCMCPU_RUNTIME_DETECT -+ extern const unsigned long *bcm63xx_regs_spi; -+ 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; -+} -+ -+#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 -@@ -33,6 +33,7 @@ - #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: " -@@ -1587,6 +1588,9 @@ int __init board_register_devices(void) - if (board.num_spis) - spi_register_board_info(board.spis, board.num_spis); - -+ if (!BCMCPU_IS_6345()) -+ bcm63xx_spi_register(); -+ - /* read base address of boot chip select (0) */ - if (BCMCPU_IS_6345()) - val = 0x1fc00000; |