brcm63xx: update HSSPI driver with upstream submission
Update the HSSPI driver with the upstream submitted one that has a workaround for the auto cs down issue. Signed-off-by: Jonas Gorski <jogo@openwrt.org> SVN-Revision: 39264
This commit is contained in:
parent
d0a757147b
commit
f08f0cafc2
29 changed files with 686 additions and 672 deletions
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From 8e051b79ae3f66dbad96312fe2976401c28d2148 Mon Sep 17 00:00:00 2001
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From: Jonas Gorski <jogo@openwrt.org>
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Date: Sat, 12 Nov 2011 12:19:55 +0100
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Subject: [PATCH 5/5] spi: add bcm63xx HSSPI driver
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Add a driver for the High Speed SPI controller found on newer BCM63XX SoCs.
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It does feature some new modes like 3-wire or dual spi, but neither of it
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is currently implemented.
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Signed-off-by: Jonas Gorski <jogo@openwrt.org>
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---
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drivers/spi/Kconfig | 7 +
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drivers/spi/Makefile | 1 +
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drivers/spi/spi-bcm63xx-hsspi.c | 484 ++++++++++++++++++++++++++++++++++++++++
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3 files changed, 492 insertions(+)
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create mode 100644 drivers/spi/spi-bcm63xx-hsspi.c
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--- a/drivers/spi/Kconfig
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+++ b/drivers/spi/Kconfig
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@@ -112,6 +112,13 @@ config SPI_BCM63XX
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help
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Enable support for the SPI controller on the Broadcom BCM63xx SoCs.
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+config SPI_BCM63XX_HSSPI
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+ tristate "Broadcom BCM63XX HS SPI controller driver"
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+ depends on BCM63XX || COMPILE_TEST
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+ help
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+ This enables support for the High Speed SPI controller present on
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+ newer Broadcom BCM63XX SoCs.
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+
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config SPI_BITBANG
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tristate "Utilities for Bitbanging SPI masters"
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help
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--- a/drivers/spi/Makefile
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+++ b/drivers/spi/Makefile
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@@ -16,6 +16,7 @@ obj-$(CONFIG_SPI_ATH79) += spi-ath79.o
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obj-$(CONFIG_SPI_AU1550) += spi-au1550.o
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obj-$(CONFIG_SPI_BCM2835) += spi-bcm2835.o
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obj-$(CONFIG_SPI_BCM63XX) += spi-bcm63xx.o
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+obj-$(CONFIG_SPI_BCM63XX_HSSPI) += spi-bcm63xx-hsspi.o
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obj-$(CONFIG_SPI_BFIN5XX) += spi-bfin5xx.o
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obj-$(CONFIG_SPI_BFIN_SPORT) += spi-bfin-sport.o
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obj-$(CONFIG_SPI_BITBANG) += spi-bitbang.o
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--- /dev/null
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+++ b/drivers/spi/spi-bcm63xx-hsspi.c
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@@ -0,0 +1,484 @@
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+/*
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+ * Broadcom BCM63XX High Speed SPI Controller driver
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+ *
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+ * Copyright 2000-2010 Broadcom Corporation
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+ * Copyright 2012-2013 Jonas Gorski <jogo@openwrt.org>
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+ *
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+ * Licensed under the GNU/GPL. See COPYING for details.
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+ */
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+
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+#include <linux/kernel.h>
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+#include <linux/init.h>
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+#include <linux/io.h>
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+#include <linux/clk.h>
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+#include <linux/module.h>
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+#include <linux/platform_device.h>
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+#include <linux/delay.h>
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+#include <linux/dma-mapping.h>
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+#include <linux/err.h>
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+#include <linux/interrupt.h>
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+#include <linux/spi/spi.h>
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+#include <linux/workqueue.h>
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+#include <linux/mutex.h>
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+
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+#define HSSPI_GLOBAL_CTRL_REG 0x0
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+#define GLOBAL_CTRL_CS_POLARITY_SHIFT 0
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+#define GLOBAL_CTRL_CS_POLARITY_MASK 0x000000ff
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+#define GLOBAL_CTRL_PLL_CLK_CTRL_SHIFT 8
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+#define GLOBAL_CTRL_PLL_CLK_CTRL_MASK 0x0000ff00
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+#define GLOBAL_CTRL_CLK_GATE_SSOFF BIT(16)
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+#define GLOBAL_CTRL_CLK_POLARITY BIT(17)
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+#define GLOBAL_CTRL_MOSI_IDLE BIT(18)
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+
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+#define HSSPI_GLOBAL_EXT_TRIGGER_REG 0x4
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+
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+#define HSSPI_INT_STATUS_REG 0x8
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+#define HSSPI_INT_STATUS_MASKED_REG 0xc
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+#define HSSPI_INT_MASK_REG 0x10
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+
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+#define HSSPI_PINGx_CMD_DONE(i) BIT((i * 8) + 0)
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+#define HSSPI_PINGx_RX_OVER(i) BIT((i * 8) + 1)
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+#define HSSPI_PINGx_TX_UNDER(i) BIT((i * 8) + 2)
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+#define HSSPI_PINGx_POLL_TIMEOUT(i) BIT((i * 8) + 3)
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+#define HSSPI_PINGx_CTRL_INVAL(i) BIT((i * 8) + 4)
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+
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+#define HSSPI_INT_CLEAR_ALL 0xff001f1f
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+
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+#define HSSPI_PINGPONG_COMMAND_REG(x) (0x80 + (x) * 0x40)
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+#define PINGPONG_CMD_COMMAND_MASK 0xf
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+#define PINGPONG_COMMAND_NOOP 0
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+#define PINGPONG_COMMAND_START_NOW 1
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+#define PINGPONG_COMMAND_START_TRIGGER 2
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+#define PINGPONG_COMMAND_HALT 3
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+#define PINGPONG_COMMAND_FLUSH 4
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+#define PINGPONG_CMD_PROFILE_SHIFT 8
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+#define PINGPONG_CMD_SS_SHIFT 12
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+
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+#define HSSPI_PINGPONG_STATUS_REG(x) (0x84 + (x) * 0x40)
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+
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+#define HSSPI_PROFILE_CLK_CTRL_REG(x) (0x100 + (x) * 0x20)
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+#define CLK_CTRL_FREQ_CTRL_MASK 0x0000ffff
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+#define CLK_CTRL_SPI_CLK_2X_SEL BIT(14)
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+#define CLK_CTRL_ACCUM_RST_ON_LOOP BIT(15)
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+
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+#define HSSPI_PROFILE_SIGNAL_CTRL_REG(x) (0x104 + (x) * 0x20)
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+#define SIGNAL_CTRL_LATCH_RISING BIT(12)
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+#define SIGNAL_CTRL_LAUNCH_RISING BIT(13)
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+#define SIGNAL_CTRL_ASYNC_INPUT_PATH BIT(16)
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+
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+#define HSSPI_PROFILE_MODE_CTRL_REG(x) (0x108 + (x) * 0x20)
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+#define MODE_CTRL_MULTIDATA_RD_STRT_SHIFT 8
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+#define MODE_CTRL_MULTIDATA_WR_STRT_SHIFT 12
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+#define MODE_CTRL_MULTIDATA_RD_SIZE_SHIFT 16
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+#define MODE_CTRL_MULTIDATA_WR_SIZE_SHIFT 18
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+#define MODE_CTRL_MODE_3WIRE BIT(20)
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+#define MODE_CTRL_PREPENDBYTE_CNT_SHIFT 24
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+
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+#define HSSPI_FIFO_REG(x) (0x200 + (x) * 0x200)
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+
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+
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+#define HSSPI_OP_CODE_SHIFT 13
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+#define HSSPI_OP_SLEEP (0 << HSSPI_OP_CODE_SHIFT)
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+#define HSSPI_OP_READ_WRITE (1 << HSSPI_OP_CODE_SHIFT)
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+#define HSSPI_OP_WRITE (2 << HSSPI_OP_CODE_SHIFT)
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+#define HSSPI_OP_READ (3 << HSSPI_OP_CODE_SHIFT)
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+#define HSSPI_OP_SETIRQ (4 << HSSPI_OP_CODE_SHIFT)
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+
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+#define HSSPI_BUFFER_LEN 512
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+#define HSSPI_OPCODE_LEN 2
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+
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+#define HSSPI_MAX_PREPEND_LEN 15
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+
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+#define HSSPI_MAX_SYNC_CLOCK 30000000
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+
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+#define HSSPI_BUS_NUM 1 /* 0 is legacy SPI */
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+
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+struct bcm63xx_hsspi {
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+ struct completion done;
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+ struct mutex bus_mutex;
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+
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+ struct platform_device *pdev;
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+ struct clk *clk;
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+ void __iomem *regs;
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+ u8 __iomem *fifo;
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+
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+ u32 speed_hz;
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+ u8 cs_polarity;
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+};
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+
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+static void bcm63xx_hsspi_set_cs(struct bcm63xx_hsspi *bs, unsigned cs,
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+ bool active)
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+{
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+ u32 reg;
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+
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+ mutex_lock(&bs->bus_mutex);
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+ reg = __raw_readl(bs->regs + HSSPI_GLOBAL_CTRL_REG);
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+
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+ reg &= ~BIT(cs);
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+ if (active == !(bs->cs_polarity & BIT(cs)))
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+ reg |= BIT(cs);
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+
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+ __raw_writel(reg, bs->regs + HSSPI_GLOBAL_CTRL_REG);
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+ mutex_unlock(&bs->bus_mutex);
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+}
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+
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+static void bcm63xx_hsspi_set_clk(struct bcm63xx_hsspi *bs,
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+ struct spi_device *spi, int hz)
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+{
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+ unsigned profile = spi->chip_select;
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+ u32 reg;
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+
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+ reg = DIV_ROUND_UP(2048, DIV_ROUND_UP(bs->speed_hz, hz));
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+ __raw_writel(CLK_CTRL_ACCUM_RST_ON_LOOP | reg,
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+ bs->regs + HSSPI_PROFILE_CLK_CTRL_REG(profile));
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+
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+ reg = __raw_readl(bs->regs + HSSPI_PROFILE_SIGNAL_CTRL_REG(profile));
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+ if (hz > HSSPI_MAX_SYNC_CLOCK)
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+ reg |= SIGNAL_CTRL_ASYNC_INPUT_PATH;
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+ else
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+ reg &= ~SIGNAL_CTRL_ASYNC_INPUT_PATH;
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+ __raw_writel(reg, bs->regs + HSSPI_PROFILE_SIGNAL_CTRL_REG(profile));
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+
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+ mutex_lock(&bs->bus_mutex);
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+ /* setup clock polarity */
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+ reg = __raw_readl(bs->regs + HSSPI_GLOBAL_CTRL_REG);
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+ reg &= ~GLOBAL_CTRL_CLK_POLARITY;
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+ if (spi->mode & SPI_CPOL)
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+ reg |= GLOBAL_CTRL_CLK_POLARITY;
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+ __raw_writel(reg, bs->regs + HSSPI_GLOBAL_CTRL_REG);
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+ mutex_unlock(&bs->bus_mutex);
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+}
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+
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+static int bcm63xx_hsspi_do_txrx(struct spi_device *spi, struct spi_transfer *t)
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+{
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+ struct bcm63xx_hsspi *bs = spi_master_get_devdata(spi->master);
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+ unsigned chip_select = spi->chip_select;
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+ u16 opcode = 0;
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+ int pending = t->len;
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+ int step_size = HSSPI_BUFFER_LEN;
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+ const u8 *tx = t->tx_buf;
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+ u8 *rx = t->rx_buf;
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+
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+ bcm63xx_hsspi_set_clk(bs, spi, t->speed_hz);
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+ bcm63xx_hsspi_set_cs(bs, spi->chip_select, true);
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+
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+ if (tx && rx)
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+ opcode = HSSPI_OP_READ_WRITE;
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+ else if (tx)
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+ opcode = HSSPI_OP_WRITE;
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+ else if (rx)
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+ opcode = HSSPI_OP_READ;
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+
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+ if (opcode != HSSPI_OP_READ)
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+ step_size -= HSSPI_OPCODE_LEN;
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+
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+ __raw_writel(0 << MODE_CTRL_PREPENDBYTE_CNT_SHIFT |
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+ 2 << MODE_CTRL_MULTIDATA_WR_STRT_SHIFT |
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+ 2 << MODE_CTRL_MULTIDATA_RD_STRT_SHIFT | 0xff,
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+ bs->regs + HSSPI_PROFILE_MODE_CTRL_REG(chip_select));
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+
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+ while (pending > 0) {
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+ int curr_step = min_t(int, step_size, pending);
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+
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+ init_completion(&bs->done);
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+ if (tx) {
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+ memcpy_toio(bs->fifo + HSSPI_OPCODE_LEN, tx, curr_step);
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+ tx += curr_step;
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+ }
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+
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+ __raw_writew(opcode | curr_step, bs->fifo);
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+
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+ /* enable interrupt */
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+ __raw_writel(HSSPI_PINGx_CMD_DONE(0),
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+ bs->regs + HSSPI_INT_MASK_REG);
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+
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+ /* start the transfer */
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+ __raw_writel(!chip_select << PINGPONG_CMD_SS_SHIFT |
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+ chip_select << PINGPONG_CMD_PROFILE_SHIFT |
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+ PINGPONG_COMMAND_START_NOW,
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+ bs->regs + HSSPI_PINGPONG_COMMAND_REG(0));
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+
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+ if (wait_for_completion_timeout(&bs->done, HZ) == 0) {
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+ dev_err(&bs->pdev->dev, "transfer timed out!\n");
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+ return -ETIMEDOUT;
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+ }
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+
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+ if (rx) {
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+ memcpy_fromio(rx, bs->fifo, curr_step);
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+ rx += curr_step;
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+ }
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+
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+ pending -= curr_step;
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+ }
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+
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+ return 0;
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+}
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+
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+static int bcm63xx_hsspi_setup(struct spi_device *spi)
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+{
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+ struct bcm63xx_hsspi *bs = spi_master_get_devdata(spi->master);
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+ u32 reg;
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+
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+ reg = __raw_readl(bs->regs +
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+ HSSPI_PROFILE_SIGNAL_CTRL_REG(spi->chip_select));
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+ reg &= ~(SIGNAL_CTRL_LAUNCH_RISING | SIGNAL_CTRL_LATCH_RISING);
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+ if (spi->mode & SPI_CPHA)
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+ reg |= SIGNAL_CTRL_LAUNCH_RISING;
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+ else
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+ reg |= SIGNAL_CTRL_LATCH_RISING;
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+ __raw_writel(reg, bs->regs +
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+ HSSPI_PROFILE_SIGNAL_CTRL_REG(spi->chip_select));
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+
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+ mutex_lock(&bs->bus_mutex);
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+ reg = __raw_readl(bs->regs + HSSPI_GLOBAL_CTRL_REG);
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+
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+ /* only change actual polarities if there is no transfer */
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+ if ((reg & GLOBAL_CTRL_CS_POLARITY_MASK) == bs->cs_polarity) {
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+ if (spi->mode & SPI_CS_HIGH)
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+ reg |= BIT(spi->chip_select);
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+ else
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+ reg &= ~BIT(spi->chip_select);
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+ __raw_writel(reg, bs->regs + HSSPI_GLOBAL_CTRL_REG);
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+ }
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+
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+ if (spi->mode & SPI_CS_HIGH)
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+ bs->cs_polarity |= BIT(spi->chip_select);
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+ else
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+ bs->cs_polarity &= ~BIT(spi->chip_select);
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+
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+ mutex_unlock(&bs->bus_mutex);
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+
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+ return 0;
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+}
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+
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+static int bcm63xx_hsspi_transfer_one(struct spi_master *master,
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+ struct spi_message *msg)
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+{
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+ struct bcm63xx_hsspi *bs = spi_master_get_devdata(master);
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+ struct spi_transfer *t;
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+ struct spi_device *spi = msg->spi;
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+ int status = -EINVAL;
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+ int dummy_cs;
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+ u32 reg;
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+
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+ /* This controller does not support keeping CS active during idle.
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+ * To work around this, we use the following ugly hack:
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+ *
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+ * a. Invert the target chip select's polarity so it will be active.
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+ * b. Select a "dummy" chip select to use as the hardware target.
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+ * c. Invert the dummy chip select's polarity so it will be inactive
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+ * during the actual transfers.
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+ * d. Tell the hardware to send to the dummy chip select. Thanks to
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+ * the multiplexed nature of SPI the actual target will receive
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+ * the transfer and we see its response.
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+ *
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+ * e. At the end restore the polarities again to their default values.
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+ */
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+
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+ dummy_cs = !spi->chip_select;
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+ bcm63xx_hsspi_set_cs(bs, dummy_cs, true);
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+
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+ list_for_each_entry(t, &msg->transfers, transfer_list) {
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+ status = bcm63xx_hsspi_do_txrx(spi, t);
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+ if (status)
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+ break;
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+
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+ msg->actual_length += t->len;
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+
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+ if (t->delay_usecs)
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+ udelay(t->delay_usecs);
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+
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+ if (t->cs_change)
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+ bcm63xx_hsspi_set_cs(bs, spi->chip_select, false);
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+ }
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+
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+ mutex_lock(&bs->bus_mutex);
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+ reg = __raw_readl(bs->regs + HSSPI_GLOBAL_CTRL_REG);
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+ reg &= ~GLOBAL_CTRL_CS_POLARITY_MASK;
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+ reg |= bs->cs_polarity;
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+ __raw_writel(reg, bs->regs + HSSPI_GLOBAL_CTRL_REG);
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+ mutex_unlock(&bs->bus_mutex);
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+
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+ msg->status = status;
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+ spi_finalize_current_message(master);
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+
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+ return 0;
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+}
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+
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+static irqreturn_t bcm63xx_hsspi_interrupt(int irq, void *dev_id)
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+{
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+ struct bcm63xx_hsspi *bs = (struct bcm63xx_hsspi *)dev_id;
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+
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+ if (__raw_readl(bs->regs + HSSPI_INT_STATUS_MASKED_REG) == 0)
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+ return IRQ_NONE;
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+
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+ __raw_writel(HSSPI_INT_CLEAR_ALL, bs->regs + HSSPI_INT_STATUS_REG);
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+ __raw_writel(0, bs->regs + HSSPI_INT_MASK_REG);
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+
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+ complete(&bs->done);
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+
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+ return IRQ_HANDLED;
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+}
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+
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+static int bcm63xx_hsspi_probe(struct platform_device *pdev)
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+{
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+ struct spi_master *master;
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+ struct bcm63xx_hsspi *bs;
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+ struct resource *res_mem;
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+ void __iomem *regs;
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+ struct device *dev = &pdev->dev;
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+ struct clk *clk;
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+ int irq, ret;
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+ u32 reg, rate;
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+
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+ irq = platform_get_irq(pdev, 0);
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+ if (irq < 0) {
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+ dev_err(dev, "no irq\n");
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+ return -ENXIO;
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+ }
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+
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+ res_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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+ regs = devm_request_and_ioremap(dev, res_mem);
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+ if (IS_ERR(regs))
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+ return PTR_ERR(regs);
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+
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+ clk = clk_get(dev, "hsspi");
|
||||
+
|
||||
+ if (IS_ERR(clk))
|
||||
+ return PTR_ERR(clk);
|
||||
+
|
||||
+ rate = clk_get_rate(clk);
|
||||
+ if (!rate) {
|
||||
+ ret = -EINVAL;
|
||||
+ goto out_put_clk;
|
||||
+ }
|
||||
+
|
||||
+ clk_prepare_enable(clk);
|
||||
+
|
||||
+ master = spi_alloc_master(&pdev->dev, sizeof(*bs));
|
||||
+ if (!master) {
|
||||
+ ret = -ENOMEM;
|
||||
+ goto out_disable_clk;
|
||||
+ }
|
||||
+
|
||||
+ bs = spi_master_get_devdata(master);
|
||||
+ bs->pdev = pdev;
|
||||
+ bs->clk = clk;
|
||||
+ bs->regs = regs;
|
||||
+ bs->speed_hz = rate;
|
||||
+ bs->fifo = (u8 __iomem *)(bs->regs + HSSPI_FIFO_REG(0));
|
||||
+
|
||||
+ mutex_init(&bs->bus_mutex);
|
||||
+
|
||||
+ master->bus_num = HSSPI_BUS_NUM;
|
||||
+ master->num_chipselect = 8;
|
||||
+ master->setup = bcm63xx_hsspi_setup;
|
||||
+ master->transfer_one_message = bcm63xx_hsspi_transfer_one;
|
||||
+ master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH;
|
||||
+ master->bits_per_word_mask = SPI_BPW_MASK(8);
|
||||
+ master->auto_runtime_pm = true;
|
||||
+
|
||||
+ platform_set_drvdata(pdev, master);
|
||||
+
|
||||
+ /* Initialize the hardware */
|
||||
+ __raw_writel(0, bs->regs + HSSPI_INT_MASK_REG);
|
||||
+
|
||||
+ /* clean up any pending interrupts */
|
||||
+ __raw_writel(HSSPI_INT_CLEAR_ALL, bs->regs + HSSPI_INT_STATUS_REG);
|
||||
+
|
||||
+ /* read out default CS polarities */
|
||||
+ reg = __raw_readl(bs->regs + HSSPI_GLOBAL_CTRL_REG);
|
||||
+ bs->cs_polarity = reg & GLOBAL_CTRL_CS_POLARITY_MASK;
|
||||
+ __raw_writel(reg | GLOBAL_CTRL_CLK_GATE_SSOFF,
|
||||
+ bs->regs + HSSPI_GLOBAL_CTRL_REG);
|
||||
+
|
||||
+ ret = devm_request_irq(dev, irq, bcm63xx_hsspi_interrupt, IRQF_SHARED,
|
||||
+ pdev->name, bs);
|
||||
+
|
||||
+ if (ret)
|
||||
+ goto out_put_master;
|
||||
+
|
||||
+ /* register and we are done */
|
||||
+ ret = spi_register_master(master);
|
||||
+ if (ret)
|
||||
+ goto out_put_master;
|
||||
+
|
||||
+ return 0;
|
||||
+
|
||||
+out_put_master:
|
||||
+ spi_master_put(master);
|
||||
+out_disable_clk:
|
||||
+ clk_disable_unprepare(clk);
|
||||
+out_put_clk:
|
||||
+ clk_put(clk);
|
||||
+
|
||||
+ return ret;
|
||||
+}
|
||||
+
|
||||
+
|
||||
+static int bcm63xx_hsspi_remove(struct platform_device *pdev)
|
||||
+{
|
||||
+ struct spi_master *master = platform_get_drvdata(pdev);
|
||||
+ struct bcm63xx_hsspi *bs = spi_master_get_devdata(master);
|
||||
+
|
||||
+ spi_unregister_master(master);
|
||||
+
|
||||
+ /* reset the hardware and block queue progress */
|
||||
+ __raw_writel(0, bs->regs + HSSPI_INT_MASK_REG);
|
||||
+ clk_disable_unprepare(bs->clk);
|
||||
+ clk_put(bs->clk);
|
||||
+
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
||||
+#ifdef CONFIG_PM
|
||||
+static int bcm63xx_hsspi_suspend(struct device *dev)
|
||||
+{
|
||||
+ struct spi_master *master = dev_get_drvdata(dev);
|
||||
+ struct bcm63xx_hsspi *bs = spi_master_get_devdata(master);
|
||||
+
|
||||
+ spi_master_suspend(master);
|
||||
+ clk_disable(bs->clk);
|
||||
+
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
||||
+static int bcm63xx_hsspi_resume(struct device *dev)
|
||||
+{
|
||||
+ struct spi_master *master = dev_get_drvdata(dev);
|
||||
+ struct bcm63xx_hsspi *bs = spi_master_get_devdata(master);
|
||||
+
|
||||
+ clk_enable(bs->clk);
|
||||
+ spi_master_resume(master);
|
||||
+
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
||||
+static const struct dev_pm_ops bcm63xx_hsspi_pm_ops = {
|
||||
+ .suspend = bcm63xx_hsspi_suspend,
|
||||
+ .resume = bcm63xx_hsspi_resume,
|
||||
+};
|
||||
+
|
||||
+#define BCM63XX_HSSPI_PM_OPS (&bcm63xx_hsspi_pm_ops)
|
||||
+#else
|
||||
+#define BCM63XX_HSSPI_PM_OPS NULL
|
||||
+#endif
|
||||
+
|
||||
+
|
||||
+
|
||||
+static struct platform_driver bcm63xx_hsspi_driver = {
|
||||
+ .driver = {
|
||||
+ .name = "bcm63xx-hsspi",
|
||||
+ .owner = THIS_MODULE,
|
||||
+ .pm = BCM63XX_HSSPI_PM_OPS,
|
||||
+ },
|
||||
+ .probe = bcm63xx_hsspi_probe,
|
||||
+ .remove = bcm63xx_hsspi_remove,
|
||||
+};
|
||||
+
|
||||
+module_platform_driver(bcm63xx_hsspi_driver);
|
||||
+
|
||||
+MODULE_ALIAS("platform:bcm63xx_hsspi");
|
||||
+MODULE_DESCRIPTION("Broadcom BCM63xx High Speed SPI Controller driver");
|
||||
+MODULE_AUTHOR("Jonas Gorski <jogo@openwrt.org>");
|
||||
+MODULE_LICENSE("GPL");
|
|
@ -1,20 +1,20 @@
|
|||
From 5aeb6273a610f8aab090b3499827177eb41311ba Mon Sep 17 00:00:00 2001
|
||||
From: Jonas Gorski <jonas.gorski@gmail.com>
|
||||
From f0df10fb498c21bbb201bc81dd209ea646b5a311 Mon Sep 17 00:00:00 2001
|
||||
From: Jonas Gorski <jogo@openwrt.org>
|
||||
Date: Sat, 12 Nov 2011 12:19:09 +0100
|
||||
Subject: [PATCH 53/79] MIPS: BCM63XX: expose the HS SPI clock
|
||||
Subject: [PATCH 1/5] MIPS: BCM63XX: expose the HSSPI clock
|
||||
|
||||
Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
|
||||
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
|
||||
---
|
||||
arch/mips/bcm63xx/clk.c | 22 ++++++++++++++++++++++
|
||||
1 file changed, 22 insertions(+)
|
||||
arch/mips/bcm63xx/clk.c | 24 ++++++++++++++++++++++++
|
||||
1 file changed, 24 insertions(+)
|
||||
|
||||
--- a/arch/mips/bcm63xx/clk.c
|
||||
+++ b/arch/mips/bcm63xx/clk.c
|
||||
@@ -236,6 +236,26 @@ static struct clk clk_spi = {
|
||||
@@ -226,6 +226,28 @@ static struct clk clk_spi = {
|
||||
};
|
||||
|
||||
/*
|
||||
+ * SPI clock
|
||||
+ * HSSPI clock
|
||||
+ */
|
||||
+static void hsspi_set(struct clk *clk, int enable)
|
||||
+{
|
||||
|
@ -22,6 +22,8 @@ Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
|
|||
+
|
||||
+ if (BCMCPU_IS_6328())
|
||||
+ mask = CKCTL_6328_HSSPI_EN;
|
||||
+ else if (BCMCPU_IS_6362())
|
||||
+ mask = CKCTL_6362_HSSPI_EN;
|
||||
+ else
|
||||
+ return;
|
||||
+
|
||||
|
@ -37,7 +39,7 @@ Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
|
|||
* XTM clock
|
||||
*/
|
||||
static void xtm_set(struct clk *clk, int enable)
|
||||
@@ -344,6 +364,8 @@ struct clk *clk_get(struct device *dev,
|
||||
@@ -334,6 +356,8 @@ struct clk *clk_get(struct device *dev,
|
||||
return &clk_usbd;
|
||||
if (!strcmp(id, "spi"))
|
||||
return &clk_spi;
|
|
@ -0,0 +1,36 @@
|
|||
From c8b7d2630d907025ce30989bddd01f4f0f13c103 Mon Sep 17 00:00:00 2001
|
||||
From: Jonas Gorski <jogo@openwrt.org>
|
||||
Date: Wed, 20 Nov 2013 17:22:40 +0100
|
||||
Subject: [PATCH 2/5] MIPS: BCM63XX: setup the HSSPI clock rate
|
||||
|
||||
Properly set up the HSSPI clock rate depending on the SoC's PLL rate.
|
||||
|
||||
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
|
||||
---
|
||||
arch/mips/bcm63xx/clk.c | 18 ++++++++++++++++++
|
||||
1 file changed, 18 insertions(+)
|
||||
|
||||
--- a/arch/mips/bcm63xx/clk.c
|
||||
+++ b/arch/mips/bcm63xx/clk.c
|
||||
@@ -378,3 +378,21 @@ void clk_put(struct clk *clk)
|
||||
}
|
||||
|
||||
EXPORT_SYMBOL(clk_put);
|
||||
+
|
||||
+#define HSSPI_PLL_HZ_6328 133333333
|
||||
+#define HSSPI_PLL_HZ_6362 400000000
|
||||
+
|
||||
+static int __init bcm63xx_clk_init(void)
|
||||
+{
|
||||
+ switch (bcm63xx_get_cpu_id()) {
|
||||
+ case BCM6328_CPU_ID:
|
||||
+ clk_hsspi.rate = HSSPI_PLL_HZ_6328;
|
||||
+ break;
|
||||
+ case BCM6362_CPU_ID:
|
||||
+ clk_hsspi.rate = HSSPI_PLL_HZ_6362;
|
||||
+ break;
|
||||
+ }
|
||||
+
|
||||
+ return 0;
|
||||
+}
|
||||
+arch_initcall(bcm63xx_clk_init);
|
|
@ -1,13 +1,12 @@
|
|||
From 70f970222bc1096689ae1bffeb9ed09a7c4bed07 Mon Sep 17 00:00:00 2001
|
||||
From: Jonas Gorski <jonas.gorski@gmail.com>
|
||||
From 33a6acbe47636adcd9062a0e0af7985c0df9faa5 Mon Sep 17 00:00:00 2001
|
||||
From: Jonas Gorski <jogo@openwrt.org>
|
||||
Date: Sat, 12 Nov 2011 12:19:55 +0100
|
||||
Subject: [PATCH 28/60] MIPS: BCM63XX: add HSSPI register definitions
|
||||
Subject: [PATCH 3/5] MIPS: BCM63XX: add HSSPI IRQ and register offsets
|
||||
|
||||
Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
|
||||
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
|
||||
---
|
||||
arch/mips/include/asm/mach-bcm63xx/bcm63xx_cpu.h | 18 ++++++++
|
||||
arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h | 47 +++++++++++++++++++++
|
||||
2 files changed, 65 insertions(+), 0 deletions(-)
|
||||
arch/mips/include/asm/mach-bcm63xx/bcm63xx_cpu.h | 18 ++++++++++++++++++
|
||||
1 file changed, 18 insertions(+)
|
||||
|
||||
--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_cpu.h
|
||||
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_cpu.h
|
||||
|
@ -155,57 +154,3 @@ Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
|
|||
[IRQ_OHCI0] = BCM_## __cpu ##_OHCI0_IRQ, \
|
||||
[IRQ_EHCI0] = BCM_## __cpu ##_EHCI0_IRQ, \
|
||||
[IRQ_USBD] = BCM_## __cpu ##_USBD_IRQ, \
|
||||
--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h
|
||||
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h
|
||||
@@ -1561,4 +1561,51 @@
|
||||
#define OTP_USER_BITS_6328_REG(i) (0x20 + (i) * 4)
|
||||
#define OTP_6328_REG3_TP1_DISABLED BIT(9)
|
||||
|
||||
+/*************************************************************************
|
||||
+ * _REG relative to RSET_HSSPI
|
||||
+ *************************************************************************/
|
||||
+
|
||||
+#define HSSPI_GLOBAL_CTRL_REG 0x0
|
||||
+#define GLOBAL_CTRL_CLK_POLARITY (1 << 17)
|
||||
+#define GLOBAL_CTRL_CLK_GATE_SSOFF (1 << 16)
|
||||
+
|
||||
+#define HSSPI_GLOBAL_EXT_TRIGGER_REG 0x4
|
||||
+
|
||||
+#define HSSPI_INT_STATUS_REG 0x8
|
||||
+#define HSSPI_INT_STATUS_MASKED_REG 0xc
|
||||
+#define HSSPI_INT_MASK_REG 0x10
|
||||
+
|
||||
+#define HSSPI_PING0_CMD_DONE (1 << 0)
|
||||
+
|
||||
+#define HSSPI_INT_CLEAR_ALL 0xff001f1f
|
||||
+
|
||||
+#define HSSPI_PINGPONG_COMMAND_REG(x) (0x80 + (x) * 0x40)
|
||||
+#define PINGPONG_CMD_COMMAND_MASK 0xf
|
||||
+#define PINGPONG_COMMAND_NOOP 0
|
||||
+#define PINGPONG_COMMAND_START_NOW 1
|
||||
+#define PINGPONG_COMMAND_START_TRIGGER 2
|
||||
+#define PINGPONG_COMMAND_HALT 3
|
||||
+#define PINGPONG_COMMAND_FLUSH 4
|
||||
+#define PINGPONG_CMD_PROFILE_SHIFT 8
|
||||
+#define PINGPONG_CMD_SS_SHIFT 12
|
||||
+
|
||||
+#define HSSPI_PINGPONG_STATUS_REG(x) (0x84 + (x) * 0x40)
|
||||
+
|
||||
+#define HSSPI_PROFILE_CLK_CTRL_REG(x) (0x100 + (x) * 0x20)
|
||||
+#define CLK_CTRL_ACCUM_RST_ON_LOOP (1 << 15)
|
||||
+
|
||||
+#define HSSPI_PROFILE_SIGNAL_CTRL_REG(x) (0x104 + (x) * 0x20)
|
||||
+#define SIGNAL_CTRL_LATCH_RISING (1 << 12)
|
||||
+#define SIGNAL_CTRL_LAUNCH_RISING (1 << 13)
|
||||
+#define SIGNAL_CTRL_ASYNC_INPUT_PATH (1 << 16)
|
||||
+
|
||||
+#define HSSPI_PROFILE_MODE_CTRL_REG(x) (0x108 + (x) * 0x20)
|
||||
+#define MODE_CTRL_MULTIDATA_RD_STRT_SHIFT 8
|
||||
+#define MODE_CTRL_MULTIDATA_WR_STRT_SHIFT 12
|
||||
+#define MODE_CTRL_MULTIDATA_RD_SIZE_SHIFT 16
|
||||
+#define MODE_CTRL_MULTIDATA_WR_SIZE_SHIFT 18
|
||||
+#define MODE_CTRL_PREPENDBYTE_CNT_SHIFT 24
|
||||
+
|
||||
+#define HSSPI_FIFO_REG(x) (0x200 + (x) * 0x200)
|
||||
+
|
||||
#endif /* BCM63XX_REGS_H_ */
|
|
@ -1,53 +1,52 @@
|
|||
From 261ee140e75615351128eee497e6bbd76686784b Mon Sep 17 00:00:00 2001
|
||||
From: Jonas Gorski <jonas.gorski@gmail.com>
|
||||
From ad04c99347cf9e583457f7258e97f0be22fad2ec Mon Sep 17 00:00:00 2001
|
||||
From: Jonas Gorski <jogo@openwrt.org>
|
||||
Date: Sat, 12 Nov 2011 12:18:26 +0100
|
||||
Subject: [PATCH 51/72] MIPS: BCM63XX: add HS SPI platform device and register
|
||||
it
|
||||
Subject: [PATCH 4/5] MIPS: BCM63XX: add HSSPI platform device and register it
|
||||
|
||||
Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
|
||||
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
|
||||
---
|
||||
arch/mips/bcm63xx/Makefile | 4 +-
|
||||
arch/mips/bcm63xx/boards/board_bcm963xx.c | 2 +
|
||||
arch/mips/bcm63xx/dev-hsspi.c | 57 ++++++++++++++++++++
|
||||
.../include/asm/mach-bcm63xx/bcm63xx_dev_hsspi.h | 20 +++++++
|
||||
4 files changed, 81 insertions(+), 2 deletions(-)
|
||||
arch/mips/bcm63xx/Makefile | 4 +-
|
||||
arch/mips/bcm63xx/boards/board_bcm963xx.c | 3 ++
|
||||
arch/mips/bcm63xx/dev-hsspi.c | 47 ++++++++++++++++++++++
|
||||
.../include/asm/mach-bcm63xx/bcm63xx_dev_hsspi.h | 8 ++++
|
||||
4 files changed, 60 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
|
||||
@@ -1,7 +1,8 @@
|
||||
@@ -1,7 +1,7 @@
|
||||
obj-y += clk.o cpu.o cs.o gpio.o irq.o nvram.o prom.o reset.o \
|
||||
setup.o timer.o dev-dsp.o dev-enet.o dev-flash.o \
|
||||
- dev-pcmcia.o dev-rng.o dev-spi.o dev-uart.o dev-wdt.o \
|
||||
- dev-usb-ehci.o dev-usb-ohci.o dev-usb-usbd.o usb-common.o
|
||||
+ dev-hsspi.o dev-pcmcia.o dev-rng.o dev-spi.o dev-uart.o \
|
||||
+ dev-wdt.o dev-usb-ehci.o dev-usb-ohci.o dev-usb-usbd.o \
|
||||
+ usb-common.o
|
||||
- dev-usb-usbd.o
|
||||
+ dev-pcmcia.o dev-rng.o dev-spi.o dev-hsspi.o dev-uart.o \
|
||||
+ dev-wdt.o dev-usb-usbd.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
|
||||
@@ -26,6 +26,7 @@
|
||||
@@ -23,6 +23,7 @@
|
||||
#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_ehci.h>
|
||||
@@ -1003,6 +1004,7 @@ int __init board_register_devices(void)
|
||||
pr_err(PFX "failed to register fallback SPROM\n");
|
||||
}
|
||||
#endif
|
||||
+ bcm63xx_hsspi_register();
|
||||
#include <bcm63xx_dev_usb_usbd.h>
|
||||
@@ -915,6 +916,8 @@ int __init board_register_devices(void)
|
||||
|
||||
bcm63xx_spi_register();
|
||||
|
||||
+ bcm63xx_hsspi_register();
|
||||
+
|
||||
bcm63xx_flash_register();
|
||||
|
||||
bcm63xx_led_data.num_leds = ARRAY_SIZE(board.leds);
|
||||
--- /dev/null
|
||||
+++ b/arch/mips/bcm63xx/dev-hsspi.c
|
||||
@@ -0,0 +1,60 @@
|
||||
@@ -0,0 +1,47 @@
|
||||
+/*
|
||||
+ * 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
|
||||
|
@ -76,23 +75,15 @@ Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
|
|||
+ },
|
||||
+};
|
||||
+
|
||||
+static struct bcm63xx_hsspi_pdata spi_pdata = {
|
||||
+ .bus_num = 1,
|
||||
+};
|
||||
+
|
||||
+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() && !BCMCPU_IS_6362())
|
||||
+ return -ENODEV;
|
||||
+
|
||||
|
@ -101,34 +92,16 @@ Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
|
|||
+ spi_resources[0].end += RSET_HSSPI_SIZE - 1;
|
||||
+ spi_resources[1].start = bcm63xx_get_irq_number(IRQ_HSSPI);
|
||||
+
|
||||
+ if (BCMCPU_IS_6328())
|
||||
+ spi_pdata.speed_hz = HSSPI_PLL_HZ_6328;
|
||||
+ else if (BCMCPU_IS_6362())
|
||||
+ spi_pdata.speed_hz = HSSPI_PLL_HZ_6362;
|
||||
+
|
||||
+ return platform_device_register(&bcm63xx_hsspi_device);
|
||||
+}
|
||||
--- /dev/null
|
||||
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_hsspi.h
|
||||
@@ -0,0 +1,21 @@
|
||||
@@ -0,0 +1,8 @@
|
||||
+#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_PLL_HZ_6362 400000000
|
||||
+int bcm63xx_hsspi_register(void);
|
||||
+
|
||||
+#endif /* BCM63XX_DEV_HSSPI_H */
|
|
@ -24,9 +24,9 @@ Signed-off-by: Florian Fainelli <florian@openwrt.org>
|
|||
@@ -1,7 +1,7 @@
|
||||
obj-y += clk.o cpu.o cs.o gpio.o irq.o nvram.o prom.o reset.o \
|
||||
setup.o timer.o dev-dsp.o dev-enet.o dev-flash.o \
|
||||
dev-pcmcia.o dev-rng.o dev-spi.o dev-uart.o dev-wdt.o \
|
||||
- dev-usb-usbd.o
|
||||
+ dev-usb-usbd.o usb-common.o
|
||||
dev-pcmcia.o dev-rng.o dev-spi.o dev-hsspi.o dev-uart.o \
|
||||
- dev-wdt.o dev-usb-usbd.o
|
||||
+ dev-wdt.o dev-usb-usbd.o usb-common.o
|
||||
obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
|
||||
|
||||
obj-y += boards/
|
||||
|
|
|
@ -24,9 +24,9 @@ Signed-off-by: Florian Fainelli <florian@openwrt.org>
|
|||
@@ -1,7 +1,7 @@
|
||||
obj-y += clk.o cpu.o cs.o gpio.o irq.o nvram.o prom.o reset.o \
|
||||
setup.o timer.o dev-dsp.o dev-enet.o dev-flash.o \
|
||||
dev-pcmcia.o dev-rng.o dev-spi.o dev-uart.o dev-wdt.o \
|
||||
- dev-usb-usbd.o usb-common.o
|
||||
+ dev-usb-ohci.o dev-usb-usbd.o usb-common.o
|
||||
dev-pcmcia.o dev-rng.o dev-spi.o dev-hsspi.o dev-uart.o \
|
||||
- dev-wdt.o dev-usb-usbd.o usb-common.o
|
||||
+ dev-wdt.o dev-usb-ohci.o dev-usb-usbd.o usb-common.o
|
||||
obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
|
||||
|
||||
obj-y += boards/
|
||||
|
|
|
@ -16,15 +16,15 @@ Signed-off-by: Florian Fainelli <florian@openwrt.org>
|
|||
|
||||
--- a/arch/mips/bcm63xx/boards/board_bcm963xx.c
|
||||
+++ b/arch/mips/bcm63xx/boards/board_bcm963xx.c
|
||||
@@ -25,6 +25,7 @@
|
||||
#include <bcm63xx_dev_flash.h>
|
||||
@@ -26,6 +26,7 @@
|
||||
#include <bcm63xx_dev_hsspi.h>
|
||||
#include <bcm63xx_dev_pcmcia.h>
|
||||
#include <bcm63xx_dev_spi.h>
|
||||
+#include <bcm63xx_dev_usb_ohci.h>
|
||||
#include <bcm63xx_dev_usb_usbd.h>
|
||||
#include <board_bcm963xx.h>
|
||||
|
||||
@@ -897,6 +898,9 @@ int __init board_register_devices(void)
|
||||
@@ -898,6 +899,9 @@ int __init board_register_devices(void)
|
||||
if (board.has_usbd)
|
||||
bcm63xx_usbd_register(&board.usbd);
|
||||
|
||||
|
|
|
@ -21,12 +21,13 @@ Signed-off-by: Florian Fainelli <florian@openwrt.org>
|
|||
|
||||
--- a/arch/mips/bcm63xx/Makefile
|
||||
+++ b/arch/mips/bcm63xx/Makefile
|
||||
@@ -1,7 +1,7 @@
|
||||
@@ -1,7 +1,8 @@
|
||||
obj-y += clk.o cpu.o cs.o gpio.o irq.o nvram.o prom.o reset.o \
|
||||
setup.o timer.o dev-dsp.o dev-enet.o dev-flash.o \
|
||||
dev-pcmcia.o dev-rng.o dev-spi.o dev-uart.o dev-wdt.o \
|
||||
- dev-usb-ohci.o dev-usb-usbd.o usb-common.o
|
||||
+ dev-usb-ehci.o dev-usb-ohci.o dev-usb-usbd.o usb-common.o
|
||||
dev-pcmcia.o dev-rng.o dev-spi.o dev-hsspi.o dev-uart.o \
|
||||
- dev-wdt.o dev-usb-ohci.o dev-usb-usbd.o usb-common.o
|
||||
+ dev-wdt.o dev-usb-ehci.o dev-usb-ohci.o dev-usb-usbd.o \
|
||||
+ usb-common.o
|
||||
obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
|
||||
|
||||
obj-y += boards/
|
||||
|
|
|
@ -16,15 +16,15 @@ Signed-off-by: Florian Fainelli <florian@openwrt.org>
|
|||
|
||||
--- a/arch/mips/bcm63xx/boards/board_bcm963xx.c
|
||||
+++ b/arch/mips/bcm63xx/boards/board_bcm963xx.c
|
||||
@@ -25,6 +25,7 @@
|
||||
#include <bcm63xx_dev_flash.h>
|
||||
@@ -26,6 +26,7 @@
|
||||
#include <bcm63xx_dev_hsspi.h>
|
||||
#include <bcm63xx_dev_pcmcia.h>
|
||||
#include <bcm63xx_dev_spi.h>
|
||||
+#include <bcm63xx_dev_usb_ehci.h>
|
||||
#include <bcm63xx_dev_usb_ohci.h>
|
||||
#include <bcm63xx_dev_usb_usbd.h>
|
||||
#include <board_bcm963xx.h>
|
||||
@@ -898,6 +899,9 @@ int __init board_register_devices(void)
|
||||
@@ -899,6 +900,9 @@ int __init board_register_devices(void)
|
||||
if (board.has_usbd)
|
||||
bcm63xx_usbd_register(&board.usbd);
|
||||
|
||||
|
|
|
@ -9,7 +9,7 @@
|
|||
#include <asm/addrspace.h>
|
||||
#include <bcm63xx_board.h>
|
||||
#include <bcm63xx_cpu.h>
|
||||
@@ -36,6 +38,9 @@
|
||||
@@ -37,6 +39,9 @@
|
||||
|
||||
#define HCS_OFFSET_128K 0x20000
|
||||
|
||||
|
@ -19,7 +19,7 @@
|
|||
static struct board_info board;
|
||||
|
||||
/*
|
||||
@@ -379,6 +384,16 @@ static struct board_info __initdata boar
|
||||
@@ -380,6 +385,16 @@ static struct board_info __initdata boar
|
||||
.active_low = 1,
|
||||
},
|
||||
},
|
||||
|
@ -36,7 +36,7 @@
|
|||
};
|
||||
|
||||
static struct board_info __initdata board_96348gw = {
|
||||
@@ -437,6 +452,16 @@ static struct board_info __initdata boar
|
||||
@@ -438,6 +453,16 @@ static struct board_info __initdata boar
|
||||
.active_low = 1,
|
||||
},
|
||||
},
|
||||
|
@ -53,7 +53,7 @@
|
|||
};
|
||||
|
||||
static struct board_info __initdata board_FAST2404 = {
|
||||
@@ -870,11 +895,23 @@ static struct platform_device bcm63xx_gp
|
||||
@@ -871,11 +896,23 @@ static struct platform_device bcm63xx_gp
|
||||
.dev.platform_data = &bcm63xx_led_data,
|
||||
};
|
||||
|
||||
|
@ -77,7 +77,7 @@
|
|||
if (board.has_uart0)
|
||||
bcm63xx_uart_register(0);
|
||||
|
||||
@@ -934,5 +971,16 @@ int __init board_register_devices(void)
|
||||
@@ -937,5 +974,16 @@ int __init board_register_devices(void)
|
||||
gpio_request_one(board.ephy_reset_gpio,
|
||||
board.ephy_reset_gpio_flags, "ephy-reset");
|
||||
|
||||
|
|
|
@ -1,6 +1,6 @@
|
|||
--- a/arch/mips/bcm63xx/boards/board_bcm963xx.c
|
||||
+++ b/arch/mips/bcm63xx/boards/board_bcm963xx.c
|
||||
@@ -911,6 +911,7 @@ static struct platform_device bcm63xx_gp
|
||||
@@ -912,6 +912,7 @@ static struct platform_device bcm63xx_gp
|
||||
int __init board_register_devices(void)
|
||||
{
|
||||
int button_count = 0;
|
||||
|
@ -8,7 +8,7 @@
|
|||
|
||||
if (board.has_uart0)
|
||||
bcm63xx_uart_register(0);
|
||||
@@ -962,10 +963,16 @@ int __init board_register_devices(void)
|
||||
@@ -965,10 +966,16 @@ int __init board_register_devices(void)
|
||||
|
||||
bcm63xx_flash_register();
|
||||
|
||||
|
|
|
@ -1,8 +1,8 @@
|
|||
--- a/arch/mips/bcm63xx/boards/board_bcm963xx.c
|
||||
+++ b/arch/mips/bcm63xx/boards/board_bcm963xx.c
|
||||
@@ -961,6 +961,9 @@ int __init board_register_devices(void)
|
||||
@@ -964,6 +964,9 @@ int __init board_register_devices(void)
|
||||
|
||||
bcm63xx_spi_register();
|
||||
bcm63xx_hsspi_register();
|
||||
|
||||
+ if (board.num_devs)
|
||||
+ platform_add_devices(board.devs, board.num_devs);
|
||||
|
|
|
@ -8,7 +8,7 @@
|
|||
#include <asm/addrspace.h>
|
||||
#include <bcm63xx_board.h>
|
||||
#include <bcm63xx_cpu.h>
|
||||
@@ -964,6 +965,9 @@ int __init board_register_devices(void)
|
||||
@@ -967,6 +968,9 @@ int __init board_register_devices(void)
|
||||
if (board.num_devs)
|
||||
platform_add_devices(board.devs, board.num_devs);
|
||||
|
||||
|
|
|
@ -1,6 +1,6 @@
|
|||
--- a/arch/mips/bcm63xx/boards/board_bcm963xx.c
|
||||
+++ b/arch/mips/bcm63xx/boards/board_bcm963xx.c
|
||||
@@ -34,6 +34,7 @@
|
||||
@@ -35,6 +35,7 @@
|
||||
#include <board_bcm963xx.h>
|
||||
|
||||
#include <uapi/linux/bcm933xx_hcs.h>
|
||||
|
@ -8,7 +8,7 @@
|
|||
|
||||
#define PFX "board_bcm963xx: "
|
||||
|
||||
@@ -42,6 +43,9 @@
|
||||
@@ -43,6 +44,9 @@
|
||||
#define BCM963XX_KEYS_POLL_INTERVAL 20
|
||||
#define BCM963XX_KEYS_DEBOUNCE_INTERVAL (BCM963XX_KEYS_POLL_INTERVAL * 3)
|
||||
|
||||
|
@ -18,7 +18,7 @@
|
|||
static struct board_info board;
|
||||
|
||||
/*
|
||||
@@ -781,6 +785,30 @@ const char *board_get_name(void)
|
||||
@@ -782,6 +786,30 @@ const char *board_get_name(void)
|
||||
return board.name;
|
||||
}
|
||||
|
||||
|
@ -49,7 +49,7 @@
|
|||
/*
|
||||
* early init callback, read nvram data from flash and checksum it
|
||||
*/
|
||||
@@ -819,6 +847,10 @@ void __init board_prom_init(void)
|
||||
@@ -820,6 +848,10 @@ void __init board_prom_init(void)
|
||||
hcs = (struct bcm_hcs *)boot_addr;
|
||||
board_name = hcs->filename;
|
||||
} else {
|
||||
|
|
|
@ -1,6 +1,6 @@
|
|||
--- a/arch/mips/bcm63xx/boards/board_bcm963xx.c
|
||||
+++ b/arch/mips/bcm63xx/boards/board_bcm963xx.c
|
||||
@@ -147,28 +147,28 @@ static struct board_info __initdata boar
|
||||
@@ -148,28 +148,28 @@ static struct board_info __initdata boar
|
||||
|
||||
.leds = {
|
||||
{
|
||||
|
@ -34,7 +34,7 @@
|
|||
.gpio = 1,
|
||||
.active_low = 1,
|
||||
}
|
||||
@@ -188,28 +188,28 @@ static struct board_info __initdata boar
|
||||
@@ -189,28 +189,28 @@ static struct board_info __initdata boar
|
||||
|
||||
.leds = {
|
||||
{
|
||||
|
@ -68,7 +68,7 @@
|
|||
.gpio = 1,
|
||||
.active_low = 1,
|
||||
},
|
||||
@@ -248,29 +248,29 @@ static struct board_info __initdata boar
|
||||
@@ -249,29 +249,29 @@ static struct board_info __initdata boar
|
||||
|
||||
.leds = {
|
||||
{
|
||||
|
@ -103,7 +103,7 @@
|
|||
.gpio = 1,
|
||||
.active_low = 1,
|
||||
},
|
||||
@@ -309,28 +309,28 @@ static struct board_info __initdata boar
|
||||
@@ -310,28 +310,28 @@ static struct board_info __initdata boar
|
||||
|
||||
.leds = {
|
||||
{
|
||||
|
@ -137,7 +137,7 @@
|
|||
.gpio = 1,
|
||||
.active_low = 1,
|
||||
},
|
||||
@@ -363,28 +363,28 @@ static struct board_info __initdata boar
|
||||
@@ -364,28 +364,28 @@ static struct board_info __initdata boar
|
||||
|
||||
.leds = {
|
||||
{
|
||||
|
@ -171,7 +171,7 @@
|
|||
.gpio = 1,
|
||||
.active_low = 1,
|
||||
},
|
||||
@@ -431,28 +431,28 @@ static struct board_info __initdata boar
|
||||
@@ -432,28 +432,28 @@ static struct board_info __initdata boar
|
||||
|
||||
.leds = {
|
||||
{
|
||||
|
@ -205,7 +205,7 @@
|
|||
.gpio = 1,
|
||||
.active_low = 1,
|
||||
},
|
||||
@@ -584,27 +584,27 @@ static struct board_info __initdata boar
|
||||
@@ -585,27 +585,27 @@ static struct board_info __initdata boar
|
||||
|
||||
.leds = {
|
||||
{
|
||||
|
@ -238,7 +238,7 @@
|
|||
.gpio = 5,
|
||||
},
|
||||
},
|
||||
@@ -636,22 +636,22 @@ static struct board_info __initdata boar
|
||||
@@ -637,22 +637,22 @@ static struct board_info __initdata boar
|
||||
|
||||
.leds = {
|
||||
{
|
||||
|
|
|
@ -1,6 +1,6 @@
|
|||
--- a/arch/mips/bcm63xx/boards/board_bcm963xx.c
|
||||
+++ b/arch/mips/bcm63xx/boards/board_bcm963xx.c
|
||||
@@ -834,10 +834,20 @@ void __init board_prom_init(void)
|
||||
@@ -835,10 +835,20 @@ void __init board_prom_init(void)
|
||||
|
||||
/* dump cfe version */
|
||||
cfe = boot_addr + BCM963XX_CFE_VERSION_OFFSET;
|
||||
|
|
|
@ -1,6 +1,6 @@
|
|||
--- a/arch/mips/bcm63xx/boards/board_bcm963xx.c
|
||||
+++ b/arch/mips/bcm63xx/boards/board_bcm963xx.c
|
||||
@@ -910,6 +910,8 @@ void __init board_prom_init(void)
|
||||
@@ -911,6 +911,8 @@ void __init board_prom_init(void)
|
||||
if (BCMCPU_IS_6348())
|
||||
val |= GPIO_MODE_6348_G3_EXT_MII |
|
||||
GPIO_MODE_6348_G0_EXT_MII;
|
||||
|
|
|
@ -1,481 +0,0 @@
|
|||
From 4b27423676485d05bcd6fc6f3809164fb8f9d22d Mon Sep 17 00:00:00 2001
|
||||
From: Jonas Gorski <jonas.gorski@gmail.com>
|
||||
Date: Sat, 12 Nov 2011 12:19:55 +0100
|
||||
Subject: [PATCH 30/60] SPI: MIPS: BCM63XX: Add HSSPI driver
|
||||
|
||||
Add a driver for the High Speed SPI controller found on newer BCM63XX SoCs.
|
||||
|
||||
Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
|
||||
---
|
||||
.../include/asm/mach-bcm63xx/bcm63xx_dev_hsspi.h | 2 +
|
||||
drivers/spi/Kconfig | 7 +
|
||||
drivers/spi/Makefile | 1 +
|
||||
drivers/spi/spi-bcm63xx-hsspi.c | 427 ++++++++++++++++++++
|
||||
4 files changed, 437 insertions(+), 0 deletions(-)
|
||||
create mode 100644 drivers/spi/spi-bcm63xx-hsspi.c
|
||||
|
||||
--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_hsspi.h
|
||||
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_hsspi.h
|
||||
@@ -18,4 +18,6 @@ struct bcm63xx_hsspi_pdata {
|
||||
#define HSSPI_PLL_HZ_6328 133333333
|
||||
#define HSSPI_PLL_HZ_6362 400000000
|
||||
|
||||
+#define HSSPI_BUFFER_LEN 512
|
||||
+
|
||||
#endif /* BCM63XX_DEV_HSSPI_H */
|
||||
--- a/drivers/spi/Kconfig
|
||||
+++ b/drivers/spi/Kconfig
|
||||
@@ -112,6 +112,13 @@ config SPI_BCM63XX
|
||||
help
|
||||
Enable support for the SPI controller on the Broadcom BCM63xx SoCs.
|
||||
|
||||
+config SPI_BCM63XX_HSSPI
|
||||
+ tristate "Broadcom BCM63XX HS SPI controller driver"
|
||||
+ depends on BCM63XX
|
||||
+ help
|
||||
+ This enables support for the High Speed SPI controller present on
|
||||
+ newer Broadcom BCM63XX SoCs.
|
||||
+
|
||||
config SPI_BITBANG
|
||||
tristate "Utilities for Bitbanging SPI masters"
|
||||
help
|
||||
--- a/drivers/spi/Makefile
|
||||
+++ b/drivers/spi/Makefile
|
||||
@@ -16,6 +16,7 @@ obj-$(CONFIG_SPI_ATH79) += spi-ath79.o
|
||||
obj-$(CONFIG_SPI_AU1550) += spi-au1550.o
|
||||
obj-$(CONFIG_SPI_BCM2835) += spi-bcm2835.o
|
||||
obj-$(CONFIG_SPI_BCM63XX) += spi-bcm63xx.o
|
||||
+obj-$(CONFIG_SPI_BCM63XX_HSSPI) += spi-bcm63xx-hsspi.o
|
||||
obj-$(CONFIG_SPI_BFIN5XX) += spi-bfin5xx.o
|
||||
obj-$(CONFIG_SPI_BFIN_SPORT) += spi-bfin-sport.o
|
||||
obj-$(CONFIG_SPI_BITBANG) += spi-bitbang.o
|
||||
--- /dev/null
|
||||
+++ b/drivers/spi/spi-bcm63xx-hsspi.c
|
||||
@@ -0,0 +1,427 @@
|
||||
+/*
|
||||
+ * Broadcom BCM63XX High Speed SPI Controller driver
|
||||
+ *
|
||||
+ * Copyright 2000-2010 Broadcom Corporation
|
||||
+ * Copyright 2012 Jonas Gorski <jonas.gorski@gmail.com>
|
||||
+ *
|
||||
+ * Licensed under the GNU/GPL. See COPYING for details.
|
||||
+ */
|
||||
+
|
||||
+#include <linux/kernel.h>
|
||||
+#include <linux/init.h>
|
||||
+#include <linux/io.h>
|
||||
+#include <linux/clk.h>
|
||||
+#include <linux/module.h>
|
||||
+#include <linux/platform_device.h>
|
||||
+#include <linux/delay.h>
|
||||
+#include <linux/dma-mapping.h>
|
||||
+#include <linux/err.h>
|
||||
+#include <linux/interrupt.h>
|
||||
+#include <linux/spi/spi.h>
|
||||
+#include <linux/workqueue.h>
|
||||
+
|
||||
+#include <bcm63xx_regs.h>
|
||||
+#include <bcm63xx_dev_hsspi.h>
|
||||
+
|
||||
+#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)
|
||||
+
|
||||
+#define HSSPI_MAX_PREPEND_LEN 15
|
||||
+
|
||||
+#define HSSPI_MAX_SYNC_CLOCK 30000000
|
||||
+
|
||||
+struct bcm63xx_hsspi {
|
||||
+ struct completion done;
|
||||
+ struct spi_transfer *curr_trans;
|
||||
+
|
||||
+ struct platform_device *pdev;
|
||||
+ struct clk *clk;
|
||||
+ void __iomem *regs;
|
||||
+ u8 __iomem *fifo;
|
||||
+
|
||||
+ u32 speed_hz;
|
||||
+ int irq;
|
||||
+};
|
||||
+
|
||||
+static void bcm63xx_hsspi_set_clk(struct bcm63xx_hsspi *bs, int hz,
|
||||
+ int profile)
|
||||
+{
|
||||
+ u32 reg;
|
||||
+
|
||||
+ reg = DIV_ROUND_UP(2048, DIV_ROUND_UP(bs->speed_hz, hz));
|
||||
+ bcm_hsspi_writel(CLK_CTRL_ACCUM_RST_ON_LOOP | reg,
|
||||
+ HSSPI_PROFILE_CLK_CTRL_REG(profile));
|
||||
+
|
||||
+ reg = bcm_hsspi_readl(HSSPI_PROFILE_SIGNAL_CTRL_REG(profile));
|
||||
+ if (hz > HSSPI_MAX_SYNC_CLOCK)
|
||||
+ reg |= SIGNAL_CTRL_ASYNC_INPUT_PATH;
|
||||
+ else
|
||||
+ reg &= ~SIGNAL_CTRL_ASYNC_INPUT_PATH;
|
||||
+ bcm_hsspi_writel(reg, HSSPI_PROFILE_SIGNAL_CTRL_REG(profile));
|
||||
+}
|
||||
+
|
||||
+static int bcm63xx_hsspi_do_txrx(struct spi_device *spi,
|
||||
+ struct spi_transfer *t1,
|
||||
+ struct spi_transfer *t2)
|
||||
+{
|
||||
+ struct bcm63xx_hsspi *bs = spi_master_get_devdata(spi->master);
|
||||
+ u8 chip_select = spi->chip_select;
|
||||
+ u16 opcode = 0;
|
||||
+ int len, prepend_size = 0;
|
||||
+
|
||||
+ init_completion(&bs->done);
|
||||
+
|
||||
+ bs->curr_trans = t2 ? t2 : t1;
|
||||
+ bcm63xx_hsspi_set_clk(bs, bs->curr_trans->speed_hz, chip_select);
|
||||
+
|
||||
+ if (t2 && !t2->tx_buf)
|
||||
+ prepend_size = t1->len;
|
||||
+
|
||||
+ bcm_hsspi_writel(prepend_size << MODE_CTRL_PREPENDBYTE_CNT_SHIFT |
|
||||
+ 2 << MODE_CTRL_MULTIDATA_WR_STRT_SHIFT |
|
||||
+ 2 << MODE_CTRL_MULTIDATA_RD_STRT_SHIFT | 0xff,
|
||||
+ HSSPI_PROFILE_MODE_CTRL_REG(chip_select));
|
||||
+
|
||||
+ if (t1->rx_buf && t1->tx_buf)
|
||||
+ opcode = HSSPI_OP_READ_WRITE;
|
||||
+ else if (t1->rx_buf || (t2 && t2->rx_buf))
|
||||
+ opcode = HSSPI_OP_READ;
|
||||
+ else if (t1->tx_buf)
|
||||
+ opcode = HSSPI_OP_WRITE;
|
||||
+
|
||||
+ if (opcode == HSSPI_OP_READ && t2)
|
||||
+ len = t2->len;
|
||||
+ else
|
||||
+ len = t1->len;
|
||||
+
|
||||
+ if (t1->tx_buf) {
|
||||
+ memcpy_toio(bs->fifo + 2, t1->tx_buf, t1->len);
|
||||
+ if (t2 && t2->tx_buf) {
|
||||
+ memcpy_toio(bs->fifo + 2 + t1->len,
|
||||
+ t2->tx_buf, t2->len);
|
||||
+ len += t2->len;
|
||||
+ }
|
||||
+ }
|
||||
+
|
||||
+ opcode |= len;
|
||||
+ memcpy_toio(bs->fifo, &opcode, sizeof(opcode));
|
||||
+
|
||||
+ /* enable interrupt */
|
||||
+ bcm_hsspi_writel(HSSPI_PING0_CMD_DONE, HSSPI_INT_MASK_REG);
|
||||
+
|
||||
+ /* start the transfer */
|
||||
+ bcm_hsspi_writel(chip_select << PINGPONG_CMD_SS_SHIFT |
|
||||
+ chip_select << PINGPONG_CMD_PROFILE_SHIFT |
|
||||
+ PINGPONG_COMMAND_START_NOW,
|
||||
+ HSSPI_PINGPONG_COMMAND_REG(0));
|
||||
+
|
||||
+ if (wait_for_completion_timeout(&bs->done, HZ) == 0) {
|
||||
+ dev_err(&bs->pdev->dev, "transfer timed out!\n");
|
||||
+ return -ETIMEDOUT;
|
||||
+ }
|
||||
+
|
||||
+ return t1->len + (t2 ? t2->len : 0);
|
||||
+}
|
||||
+
|
||||
+static int bcm63xx_hsspi_setup(struct spi_device *spi)
|
||||
+{
|
||||
+ u32 reg;
|
||||
+
|
||||
+ if (spi->bits_per_word != 8)
|
||||
+ return -EINVAL;
|
||||
+
|
||||
+ if (spi->max_speed_hz == 0)
|
||||
+ return -EINVAL;
|
||||
+
|
||||
+ reg = bcm_hsspi_readl(HSSPI_PROFILE_SIGNAL_CTRL_REG(spi->chip_select));
|
||||
+ reg &= ~(SIGNAL_CTRL_LAUNCH_RISING | SIGNAL_CTRL_LATCH_RISING);
|
||||
+ if (spi->mode & SPI_CPHA)
|
||||
+ reg |= SIGNAL_CTRL_LAUNCH_RISING;
|
||||
+ else
|
||||
+ reg |= SIGNAL_CTRL_LATCH_RISING;
|
||||
+ bcm_hsspi_writel(reg, HSSPI_PROFILE_SIGNAL_CTRL_REG(spi->chip_select));
|
||||
+
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
||||
+static int bcm63xx_hsspi_transfer_one(struct spi_master *master,
|
||||
+ struct spi_message *msg)
|
||||
+{
|
||||
+ struct spi_transfer *t, *prev = NULL;
|
||||
+ struct spi_device *spi = msg->spi;
|
||||
+ u32 reg;
|
||||
+ int ret = -EINVAL;
|
||||
+ int len = 0;
|
||||
+
|
||||
+ /* check if we are able to make these transfers */
|
||||
+ list_for_each_entry(t, &msg->transfers, transfer_list) {
|
||||
+ if (!t->tx_buf && !t->rx_buf)
|
||||
+ goto out;
|
||||
+
|
||||
+ if (t->speed_hz == 0)
|
||||
+ t->speed_hz = spi->max_speed_hz;
|
||||
+
|
||||
+ if (t->speed_hz > spi->max_speed_hz)
|
||||
+ goto out;
|
||||
+
|
||||
+ if (t->len > HSSPI_BUFFER_LEN)
|
||||
+ goto out;
|
||||
+
|
||||
+ /*
|
||||
+ * This controller does not support keeping the chip select
|
||||
+ * active between transfers.
|
||||
+ * This logic currently supports combining:
|
||||
+ * write then read with no cs_change (e.g. m25p80 RDSR)
|
||||
+ * write then write with no cs_change (e.g. m25p80 PP)
|
||||
+ */
|
||||
+ if (prev && prev->tx_buf && !prev->cs_change && !t->cs_change) {
|
||||
+ /*
|
||||
+ * reject if we have to combine two tx transfers and
|
||||
+ * their combined length is bigger than the buffer
|
||||
+ */
|
||||
+ if (prev->tx_buf && t->tx_buf &&
|
||||
+ (prev->len + t->len) > HSSPI_BUFFER_LEN)
|
||||
+ goto out;
|
||||
+ /*
|
||||
+ * reject if we need write more than 15 bytes in read
|
||||
+ * then write.
|
||||
+ */
|
||||
+ if (prev->tx_buf && t->rx_buf &&
|
||||
+ prev->len > HSSPI_MAX_PREPEND_LEN)
|
||||
+ goto out;
|
||||
+ }
|
||||
+
|
||||
+ }
|
||||
+
|
||||
+ /* setup clock polarity */
|
||||
+ reg = bcm_hsspi_readl(HSSPI_GLOBAL_CTRL_REG);
|
||||
+ reg &= ~GLOBAL_CTRL_CLK_POLARITY;
|
||||
+ if (spi->mode & SPI_CPOL)
|
||||
+ reg |= GLOBAL_CTRL_CLK_POLARITY;
|
||||
+ bcm_hsspi_writel(reg, HSSPI_GLOBAL_CTRL_REG);
|
||||
+
|
||||
+ list_for_each_entry(t, &msg->transfers, transfer_list) {
|
||||
+ if (prev && prev->tx_buf && !prev->cs_change && !t->cs_change) {
|
||||
+ /* combine write with following transfer */
|
||||
+ ret = bcm63xx_hsspi_do_txrx(msg->spi, prev, t);
|
||||
+ if (ret < 0)
|
||||
+ goto out;
|
||||
+
|
||||
+ len += ret;
|
||||
+ prev = NULL;
|
||||
+ continue;
|
||||
+ }
|
||||
+
|
||||
+ /* write the previous pending transfer */
|
||||
+ if (prev != NULL) {
|
||||
+ ret = bcm63xx_hsspi_do_txrx(msg->spi, prev, NULL);
|
||||
+ if (ret < 0)
|
||||
+ goto out;
|
||||
+
|
||||
+ len += ret;
|
||||
+ }
|
||||
+
|
||||
+ prev = t;
|
||||
+ }
|
||||
+
|
||||
+ /* do last pending transfer */
|
||||
+ if (prev != NULL) {
|
||||
+ ret = bcm63xx_hsspi_do_txrx(msg->spi, prev, NULL);
|
||||
+ if (ret < 0)
|
||||
+ goto out;
|
||||
+ len += ret;
|
||||
+ }
|
||||
+
|
||||
+ msg->actual_length = len;
|
||||
+ ret = 0;
|
||||
+out:
|
||||
+ msg->status = ret;
|
||||
+ spi_finalize_current_message(master);
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
||||
+static irqreturn_t bcm63xx_hsspi_interrupt(int irq, void *dev_id)
|
||||
+{
|
||||
+ struct spi_master *master = (struct spi_master *)dev_id;
|
||||
+ struct bcm63xx_hsspi *bs = spi_master_get_devdata(master);
|
||||
+
|
||||
+ if (bcm_hsspi_readl(HSSPI_INT_STATUS_MASKED_REG) == 0)
|
||||
+ return IRQ_NONE;
|
||||
+
|
||||
+ bcm_hsspi_writel(HSSPI_INT_CLEAR_ALL, HSSPI_INT_STATUS_REG);
|
||||
+ bcm_hsspi_writel(0, HSSPI_INT_MASK_REG);
|
||||
+
|
||||
+ if (bs->curr_trans && bs->curr_trans->rx_buf)
|
||||
+ memcpy_fromio(bs->curr_trans->rx_buf, bs->fifo,
|
||||
+ bs->curr_trans->len);
|
||||
+ complete(&bs->done);
|
||||
+
|
||||
+ return IRQ_HANDLED;
|
||||
+}
|
||||
+
|
||||
+static int bcm63xx_hsspi_probe(struct platform_device *pdev)
|
||||
+{
|
||||
+
|
||||
+ struct spi_master *master;
|
||||
+ struct bcm63xx_hsspi *bs;
|
||||
+ struct resource *res_mem;
|
||||
+ void __iomem *regs;
|
||||
+ struct device *dev = &pdev->dev;
|
||||
+ struct bcm63xx_hsspi_pdata *pdata = pdev->dev.platform_data;
|
||||
+ struct clk *clk;
|
||||
+ int irq;
|
||||
+ int ret;
|
||||
+
|
||||
+ irq = platform_get_irq(pdev, 0);
|
||||
+ if (irq < 0) {
|
||||
+ dev_err(dev, "no irq\n");
|
||||
+ return -ENXIO;
|
||||
+ }
|
||||
+
|
||||
+ res_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
|
||||
+ regs = devm_request_and_ioremap(dev, res_mem);
|
||||
+ if (!regs) {
|
||||
+ dev_err(dev, "unable to ioremap regs\n");
|
||||
+ return -ENXIO;
|
||||
+ }
|
||||
+
|
||||
+ clk = clk_get(dev, "hsspi");
|
||||
+
|
||||
+ if (IS_ERR(clk)) {
|
||||
+ ret = PTR_ERR(clk);
|
||||
+ goto out_release;
|
||||
+ }
|
||||
+
|
||||
+ clk_prepare_enable(clk);
|
||||
+
|
||||
+ master = spi_alloc_master(&pdev->dev, sizeof(*bs));
|
||||
+ if (!master) {
|
||||
+ ret = -ENOMEM;
|
||||
+ goto out_disable_clk;
|
||||
+ }
|
||||
+
|
||||
+ bs = spi_master_get_devdata(master);
|
||||
+ bs->pdev = pdev;
|
||||
+ bs->clk = clk;
|
||||
+ bs->regs = regs;
|
||||
+
|
||||
+ master->bus_num = pdata->bus_num;
|
||||
+ master->num_chipselect = 8;
|
||||
+ master->setup = bcm63xx_hsspi_setup;
|
||||
+ master->transfer_one_message = bcm63xx_hsspi_transfer_one;
|
||||
+ master->mode_bits = SPI_CPOL | SPI_CPHA;
|
||||
+
|
||||
+ bs->speed_hz = pdata->speed_hz;
|
||||
+ bs->fifo = (u8 __iomem *)(bs->regs + HSSPI_FIFO_REG(0));
|
||||
+
|
||||
+ platform_set_drvdata(pdev, master);
|
||||
+
|
||||
+ bs->curr_trans = NULL;
|
||||
+
|
||||
+ /* Initialize the hardware */
|
||||
+ bcm_hsspi_writel(0, HSSPI_INT_MASK_REG);
|
||||
+
|
||||
+ /* clean up any pending interrupts */
|
||||
+ bcm_hsspi_writel(HSSPI_INT_CLEAR_ALL, HSSPI_INT_STATUS_REG);
|
||||
+
|
||||
+ bcm_hsspi_writel(bcm_hsspi_readl(HSSPI_GLOBAL_CTRL_REG) |
|
||||
+ GLOBAL_CTRL_CLK_GATE_SSOFF,
|
||||
+ HSSPI_GLOBAL_CTRL_REG);
|
||||
+
|
||||
+ ret = devm_request_irq(dev, irq, bcm63xx_hsspi_interrupt, IRQF_SHARED,
|
||||
+ pdev->name, master);
|
||||
+
|
||||
+ if (ret)
|
||||
+ goto out_put_master;
|
||||
+
|
||||
+ /* register and we are done */
|
||||
+ ret = spi_register_master(master);
|
||||
+ if (ret)
|
||||
+ goto out_free_irq;
|
||||
+
|
||||
+ return 0;
|
||||
+
|
||||
+out_free_irq:
|
||||
+ devm_free_irq(dev, bs->irq, master);
|
||||
+out_put_master:
|
||||
+ spi_master_put(master);
|
||||
+out_disable_clk:
|
||||
+ clk_disable_unprepare(clk);
|
||||
+ clk_put(clk);
|
||||
+out_release:
|
||||
+ devm_ioremap_release(dev, regs);
|
||||
+
|
||||
+ return ret;
|
||||
+}
|
||||
+
|
||||
+
|
||||
+static int __exit bcm63xx_hsspi_remove(struct platform_device *pdev)
|
||||
+{
|
||||
+ struct spi_master *master = platform_get_drvdata(pdev);
|
||||
+ struct bcm63xx_hsspi *bs = spi_master_get_devdata(master);
|
||||
+
|
||||
+ spi_unregister_master(master);
|
||||
+
|
||||
+ /* reset the hardware and block queue progress */
|
||||
+ bcm_hsspi_writel(0, HSSPI_INT_MASK_REG);
|
||||
+ clk_disable_unprepare(bs->clk);
|
||||
+ clk_put(bs->clk);
|
||||
+
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
||||
+#ifdef CONFIG_PM
|
||||
+static int bcm63xx_hsspi_suspend(struct platform_device *pdev,
|
||||
+ pm_message_t mesg)
|
||||
+{
|
||||
+ struct spi_master *master = platform_get_drvdata(pdev);
|
||||
+ struct bcm63xx_hsspi *bs = spi_master_get_devdata(master);
|
||||
+
|
||||
+ spi_master_suspend(master);
|
||||
+ clk_disable(bs->clk);
|
||||
+
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
||||
+static int bcm63xx_hsspi_resume(struct platform_device *pdev)
|
||||
+{
|
||||
+ struct spi_master *master = platform_get_drvdata(pdev);
|
||||
+ struct bcm63xx_hsspi *bs = spi_master_get_devdata(master);
|
||||
+
|
||||
+ clk_enable(bs->clk);
|
||||
+ spi_master_resume(master);
|
||||
+
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
||||
+static const struct dev_pm_ops bcm63xx_hsspi_pm_ops = {
|
||||
+ .suspend = bcm63xx_hsspi_suspend,
|
||||
+ .resume = bcm63xx_hsspi_resume,
|
||||
+};
|
||||
+
|
||||
+#define BCM63XX_HSSPI_PM_OPS (&bcm63xx_hsspi_pm_ops)
|
||||
+#else
|
||||
+#define BCM63XX_HSSPI_PM_OPS NULL
|
||||
+#endif
|
||||
+
|
||||
+
|
||||
+
|
||||
+static struct platform_driver bcm63xx_hsspi_driver = {
|
||||
+ .driver = {
|
||||
+ .name = "bcm63xx-hsspi",
|
||||
+ .owner = THIS_MODULE,
|
||||
+ .pm = BCM63XX_HSSPI_PM_OPS,
|
||||
+ },
|
||||
+ .probe = bcm63xx_hsspi_probe,
|
||||
+ .remove = __exit_p(bcm63xx_hsspi_remove),
|
||||
+};
|
||||
+
|
||||
+module_platform_driver(bcm63xx_hsspi_driver);
|
||||
+
|
||||
+MODULE_ALIAS("platform:bcm63xx_hsspi");
|
||||
+MODULE_DESCRIPTION("Broadcom BCM63xx HS SPI Controller driver");
|
||||
+MODULE_AUTHOR("Jonas Gorski <jonas.gorski@gmail.com>");
|
||||
+MODULE_LICENSE("GPL");
|
|
@ -68,16 +68,14 @@ Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
|
|||
switch (val & STRAPBUS_6368_BOOT_SEL_MASK) {
|
||||
case STRAPBUS_6368_BOOT_SEL_NAND:
|
||||
return BCM63XX_FLASH_TYPE_NAND;
|
||||
@@ -117,8 +143,13 @@ int __init bcm63xx_flash_register(void)
|
||||
@@ -117,8 +143,11 @@ int __init bcm63xx_flash_register(void)
|
||||
|
||||
return platform_device_register(&mtd_dev);
|
||||
case BCM63XX_FLASH_TYPE_SERIAL:
|
||||
- pr_warn("unsupported serial flash detected\n");
|
||||
- return -ENODEV;
|
||||
+ if (BCMCPU_IS_6328() || BCMCPU_IS_6362()) {
|
||||
+ if (BCMCPU_IS_6328() || BCMCPU_IS_6362())
|
||||
+ bcm63xx_spi_flash_info[0].bus_num = 1;
|
||||
+ bcm63xx_flash_data.max_transfer_len = HSSPI_BUFFER_LEN;
|
||||
+ }
|
||||
+
|
||||
+ return spi_register_board_info(bcm63xx_spi_flash_info,
|
||||
+ ARRAY_SIZE(bcm63xx_spi_flash_info));
|
||||
|
|
|
@ -36,7 +36,7 @@ Subject: [PATCH 58/72] BCM63XX: allow providing fixup data in board data
|
|||
memcpy(bcm63xx_sprom.et0mac, bcm63xx_sprom.il0mac, ETH_ALEN);
|
||||
memcpy(bcm63xx_sprom.et1mac, bcm63xx_sprom.il0mac, ETH_ALEN);
|
||||
if (ssb_arch_register_fallback_sprom(
|
||||
@@ -1042,5 +1045,9 @@ int __init board_register_devices(void)
|
||||
@@ -1043,5 +1046,9 @@ int __init board_register_devices(void)
|
||||
platform_device_register(&bcm63xx_gpio_keys_device);
|
||||
}
|
||||
|
||||
|
|
|
@ -97,7 +97,7 @@ Subject: [PATCH 38/59] MIPS: BCM63XX: store the flash type in global variable
|
|||
case BCM63XX_FLASH_TYPE_PARALLEL:
|
||||
/* read base address of boot chip select (0) */
|
||||
val = bcm_mpi_readl(MPI_CSBASE_REG(0));
|
||||
@@ -155,7 +168,7 @@ int __init bcm63xx_flash_register(void)
|
||||
@@ -153,7 +166,7 @@ int __init bcm63xx_flash_register(void)
|
||||
return -ENODEV;
|
||||
default:
|
||||
pr_err("flash detection failed for BCM%x: %d\n",
|
||||
|
|
|
@ -15,7 +15,7 @@ Subject: [PATCH 61/72] BCM63XX: add a fixup for ath9k devices
|
|||
+++ b/arch/mips/bcm63xx/Makefile
|
||||
@@ -2,7 +2,7 @@ obj-y += clk.o cpu.o cs.o gpio.o irq.o
|
||||
setup.o timer.o dev-dsp.o dev-enet.o dev-flash.o \
|
||||
dev-hsspi.o dev-pcmcia.o dev-rng.o dev-spi.o dev-uart.o \
|
||||
dev-pcmcia.o dev-rng.o dev-spi.o dev-hsspi.o dev-uart.o \
|
||||
dev-wdt.o dev-usb-ehci.o dev-usb-ohci.o dev-usb-usbd.o \
|
||||
- usb-common.o
|
||||
+ pci-ath9k-fixup.o usb-common.o
|
||||
|
@ -24,7 +24,7 @@ Subject: [PATCH 61/72] BCM63XX: add a fixup for ath9k devices
|
|||
obj-y += boards/
|
||||
--- /dev/null
|
||||
+++ b/arch/mips/bcm63xx/pci-ath9k-fixup.c
|
||||
@@ -0,0 +1,190 @@
|
||||
@@ -0,0 +1,192 @@
|
||||
+/*
|
||||
+ * Broadcom BCM63XX Ath9k EEPROM fixup helper.
|
||||
+ *
|
||||
|
@ -53,6 +53,8 @@ Subject: [PATCH 61/72] BCM63XX: add a fixup for ath9k devices
|
|||
+#include <bcm63xx_dev_hsspi.h>
|
||||
+#include <pci_ath9k_fixup.h>
|
||||
+
|
||||
+#define bcm_hsspi_writel(v, o) bcm_rset_writel(RSET_HSSPI, (v), (o))
|
||||
+
|
||||
+struct ath9k_fixup {
|
||||
+ unsigned slot;
|
||||
+ u8 mac[ETH_ALEN];
|
||||
|
|
|
@ -11,7 +11,7 @@ Subject: [PATCH 69/80] MIPS: BCM63XX: pass caldata info to flash
|
|||
|
||||
--- a/arch/mips/bcm63xx/boards/board_bcm963xx.c
|
||||
+++ b/arch/mips/bcm63xx/boards/board_bcm963xx.c
|
||||
@@ -1017,7 +1017,7 @@ int __init board_register_devices(void)
|
||||
@@ -1018,7 +1018,7 @@ int __init board_register_devices(void)
|
||||
if (board.num_spis)
|
||||
spi_register_board_info(board.spis, board.num_spis);
|
||||
|
||||
|
|
|
@ -21,7 +21,7 @@
|
|||
/*
|
||||
--- a/arch/mips/bcm63xx/pci-ath9k-fixup.c
|
||||
+++ b/arch/mips/bcm63xx/pci-ath9k-fixup.c
|
||||
@@ -172,12 +172,14 @@ static void ath9k_pci_fixup(struct pci_d
|
||||
@@ -174,12 +174,14 @@ static void ath9k_pci_fixup(struct pci_d
|
||||
}
|
||||
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATHEROS, PCI_ANY_ID, ath9k_pci_fixup);
|
||||
|
||||
|
@ -39,7 +39,7 @@
|
|||
return;
|
||||
--- a/arch/mips/bcm63xx/boards/board_bcm963xx.c
|
||||
+++ b/arch/mips/bcm63xx/boards/board_bcm963xx.c
|
||||
@@ -1047,7 +1047,8 @@ int __init board_register_devices(void)
|
||||
@@ -1048,7 +1048,8 @@ int __init board_register_devices(void)
|
||||
|
||||
/* register any fixups */
|
||||
for (i = 0; i < board.has_caldata; i++)
|
||||
|
|
|
@ -1,6 +1,6 @@
|
|||
--- a/arch/mips/bcm63xx/boards/board_bcm963xx.c
|
||||
+++ b/arch/mips/bcm63xx/boards/board_bcm963xx.c
|
||||
@@ -1048,7 +1048,7 @@ int __init board_register_devices(void)
|
||||
@@ -1049,7 +1049,7 @@ int __init board_register_devices(void)
|
||||
/* register any fixups */
|
||||
for (i = 0; i < board.has_caldata; i++)
|
||||
pci_enable_ath9k_fixup(board.caldata[i].slot, board.caldata[i].caldata_offset,
|
||||
|
@ -11,7 +11,7 @@
|
|||
}
|
||||
--- a/arch/mips/bcm63xx/pci-ath9k-fixup.c
|
||||
+++ b/arch/mips/bcm63xx/pci-ath9k-fixup.c
|
||||
@@ -173,13 +173,14 @@ static void ath9k_pci_fixup(struct pci_d
|
||||
@@ -175,13 +175,14 @@ static void ath9k_pci_fixup(struct pci_d
|
||||
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATHEROS, PCI_ANY_ID, ath9k_pci_fixup);
|
||||
|
||||
void __init pci_enable_ath9k_fixup(unsigned slot, u32 offset,
|
||||
|
|
|
@ -19,7 +19,7 @@ Subject: [PATCH 72/72] 446-BCM63XX-add-a-fixup-for-rt2x00-devices
|
|||
+++ b/arch/mips/bcm63xx/Makefile
|
||||
@@ -2,7 +2,7 @@ obj-y += clk.o cpu.o cs.o gpio.o irq.o
|
||||
setup.o timer.o dev-dsp.o dev-enet.o dev-flash.o \
|
||||
dev-hsspi.o dev-pcmcia.o dev-rng.o dev-spi.o dev-uart.o \
|
||||
dev-pcmcia.o dev-rng.o dev-spi.o dev-hsspi.o dev-uart.o \
|
||||
dev-wdt.o dev-usb-ehci.o dev-usb-ohci.o dev-usb-usbd.o \
|
||||
- pci-ath9k-fixup.o usb-common.o
|
||||
+ pci-ath9k-fixup.o pci-rt2x00-fixup.o usb-common.o
|
||||
|
@ -36,7 +36,7 @@ Subject: [PATCH 72/72] 446-BCM63XX-add-a-fixup-for-rt2x00-devices
|
|||
|
||||
#include <uapi/linux/bcm933xx_hcs.h>
|
||||
#include <uapi/linux/bcm963xx_tag.h>
|
||||
@@ -1046,9 +1047,19 @@ int __init board_register_devices(void)
|
||||
@@ -1047,9 +1048,19 @@ int __init board_register_devices(void)
|
||||
}
|
||||
|
||||
/* register any fixups */
|
||||
|
|
|
@ -54,28 +54,14 @@
|
|||
.force_speed_100 = 1,
|
||||
.force_duplex_full = 1,
|
||||
},
|
||||
@@ -1502,6 +1514,8 @@ static struct board_info __initdata boar
|
||||
@@ -1542,6 +1554,12 @@ static struct board_info __initdata boar
|
||||
.use_internal_phy = 1,
|
||||
},
|
||||
.enet1 = {
|
||||
+ .has_phy = 1,
|
||||
+ .phy_id = 0,
|
||||
.force_speed_100 = 1,
|
||||
.force_duplex_full = 1,
|
||||
},
|
||||
@@ -1523,6 +1537,8 @@ static struct board_info __initdata boar
|
||||
.use_internal_phy = 1,
|
||||
},
|
||||
.enet1 = {
|
||||
+ .has_phy = 1,
|
||||
+ .phy_id = 0,
|
||||
.force_speed_100 = 1,
|
||||
.force_duplex_full = 1,
|
||||
},
|
||||
@@ -1542,6 +1558,8 @@ static struct board_info __initdata boar
|
||||
.use_internal_phy = 1,
|
||||
},
|
||||
.enet1 = {
|
||||
+ .has_phy = 1,
|
||||
+ .phy_id = 0,
|
||||
.force_speed_100 = 1,
|
||||
|
|
|
@ -0,0 +1,21 @@
|
|||
From 69c15bfd4b9b78ab8f0dd9a2c0902bcc5d4f02e4 Mon Sep 17 00:00:00 2001
|
||||
From: Jonas Gorski <jogo@openwrt.org>
|
||||
Date: Sun, 1 Dec 2013 13:07:35 +0100
|
||||
Subject: [PATCH] spi/bcm63xx-hsspi: make it compile with 3.10
|
||||
|
||||
---
|
||||
drivers/spi/spi-bcm63xx-hsspi.c | 3 +--
|
||||
1 file changed, 1 insertion(+), 2 deletions(-)
|
||||
|
||||
--- a/drivers/spi/spi-bcm63xx-hsspi.c
|
||||
+++ b/drivers/spi/spi-bcm63xx-hsspi.c
|
||||
@@ -375,8 +375,7 @@ static int bcm63xx_hsspi_probe(struct pl
|
||||
master->setup = bcm63xx_hsspi_setup;
|
||||
master->transfer_one_message = bcm63xx_hsspi_transfer_one;
|
||||
master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH;
|
||||
- master->bits_per_word_mask = SPI_BPW_MASK(8);
|
||||
- master->auto_runtime_pm = true;
|
||||
+ master->bits_per_word_mask = BIT(8 - 1);
|
||||
|
||||
platform_set_drvdata(pdev, master);
|
||||
|
Loading…
Reference in a new issue