diff options
author | juhosg <juhosg@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2012-02-10 08:19:33 +0000 |
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committer | juhosg <juhosg@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2012-02-10 08:19:33 +0000 |
commit | 8940cbc303a16f2cb7dcbcf91d01401b5f14b742 (patch) | |
tree | 6dcf8415967ca61be25c9a055249016b10caa9eb /target/linux/ar71xx/patches-3.2/306-spi-rb4xx-3.2-fixes.patch | |
parent | d9077e15ae00813535ac3f226c7f74f3422df8c2 (diff) |
ar71xx: merge 3.2 fixes
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@30406 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/ar71xx/patches-3.2/306-spi-rb4xx-3.2-fixes.patch')
-rw-r--r-- | target/linux/ar71xx/patches-3.2/306-spi-rb4xx-3.2-fixes.patch | 261 |
1 files changed, 0 insertions, 261 deletions
diff --git a/target/linux/ar71xx/patches-3.2/306-spi-rb4xx-3.2-fixes.patch b/target/linux/ar71xx/patches-3.2/306-spi-rb4xx-3.2-fixes.patch deleted file mode 100644 index ba02e59b0..000000000 --- a/target/linux/ar71xx/patches-3.2/306-spi-rb4xx-3.2-fixes.patch +++ /dev/null @@ -1,261 +0,0 @@ ---- a/drivers/spi/spi-rb4xx.c -+++ b/drivers/spi/spi-rb4xx.c -@@ -12,7 +12,10 @@ - * - */ - -+#include <linux/clk.h> -+#include <linux/err.h> - #include <linux/kernel.h> -+#include <linux/module.h> - #include <linux/init.h> - #include <linux/delay.h> - #include <linux/spinlock.h> -@@ -20,7 +23,8 @@ - #include <linux/platform_device.h> - #include <linux/spi/spi.h> - --#include <asm/mach-ar71xx/ar71xx.h> -+#include <asm/mach-ath79/ar71xx_regs.h> -+#include <asm/mach-ath79/ath79.h> - - #define DRV_NAME "rb4xx-spi" - #define DRV_DESC "Mikrotik RB4xx SPI controller driver" -@@ -41,13 +45,16 @@ struct rb4xx_spi { - unsigned spi_ctrl_flash; - unsigned spi_ctrl_fread; - -+ struct clk *ahb_clk; -+ unsigned long ahb_freq; -+ - spinlock_t lock; - struct list_head queue; - int busy:1; - int cs_wait; - }; - --static unsigned spi_clk_low = SPI_IOC_CS1; -+static unsigned spi_clk_low = AR71XX_SPI_IOC_CS1; - - #ifdef RB4XX_SPI_DEBUG - static inline void do_spi_delay(void) -@@ -60,10 +67,11 @@ static inline void do_spi_delay(void) { - - static inline void do_spi_init(struct spi_device *spi) - { -- unsigned cs = SPI_IOC_CS0 | SPI_IOC_CS1; -+ unsigned cs = AR71XX_SPI_IOC_CS0 | AR71XX_SPI_IOC_CS1; - - if (!(spi->mode & SPI_CS_HIGH)) -- cs ^= (spi->chip_select == 2) ? SPI_IOC_CS1 : SPI_IOC_CS0; -+ cs ^= (spi->chip_select == 2) ? AR71XX_SPI_IOC_CS1 : -+ AR71XX_SPI_IOC_CS0; - - spi_clk_low = cs; - } -@@ -71,17 +79,18 @@ static inline void do_spi_init(struct sp - static inline void do_spi_finish(void __iomem *base) - { - do_spi_delay(); -- __raw_writel(SPI_IOC_CS0 | SPI_IOC_CS1, base + SPI_REG_IOC); -+ __raw_writel(AR71XX_SPI_IOC_CS0 | AR71XX_SPI_IOC_CS1, -+ base + AR71XX_SPI_REG_IOC); - } - - static inline void do_spi_clk(void __iomem *base, int bit) - { -- unsigned bval = spi_clk_low | ((bit & 1) ? SPI_IOC_DO : 0); -+ unsigned bval = spi_clk_low | ((bit & 1) ? AR71XX_SPI_IOC_DO : 0); - - do_spi_delay(); -- __raw_writel(bval, base + SPI_REG_IOC); -+ __raw_writel(bval, base + AR71XX_SPI_REG_IOC); - do_spi_delay(); -- __raw_writel(bval | SPI_IOC_CLK, base + SPI_REG_IOC); -+ __raw_writel(bval | AR71XX_SPI_IOC_CLK, base + AR71XX_SPI_REG_IOC); - } - - static void do_spi_byte(void __iomem *base, unsigned char byte) -@@ -97,19 +106,19 @@ static void do_spi_byte(void __iomem *ba - - pr_debug("spi_byte sent 0x%02x got 0x%02x\n", - (unsigned)byte, -- (unsigned char)__raw_readl(base + SPI_REG_RDS)); -+ (unsigned char)__raw_readl(base + AR71XX_SPI_REG_RDS)); - } - - static inline void do_spi_clk_fast(void __iomem *base, unsigned bit1, - unsigned bit2) - { - unsigned bval = (spi_clk_low | -- ((bit1 & 1) ? SPI_IOC_DO : 0) | -- ((bit2 & 1) ? SPI_IOC_CS2 : 0)); -+ ((bit1 & 1) ? AR71XX_SPI_IOC_DO : 0) | -+ ((bit2 & 1) ? AR71XX_SPI_IOC_CS2 : 0)); - do_spi_delay(); -- __raw_writel(bval, base + SPI_REG_IOC); -+ __raw_writel(bval, base + AR71XX_SPI_REG_IOC); - do_spi_delay(); -- __raw_writel(bval | SPI_IOC_CLK, base + SPI_REG_IOC); -+ __raw_writel(bval | AR71XX_SPI_IOC_CLK, base + AR71XX_SPI_REG_IOC); - } - - static void do_spi_byte_fast(void __iomem *base, unsigned char byte) -@@ -121,7 +130,7 @@ static void do_spi_byte_fast(void __iome - - pr_debug("spi_byte_fast sent 0x%02x got 0x%02x\n", - (unsigned)byte, -- (unsigned char) __raw_readl(base + SPI_REG_RDS)); -+ (unsigned char) __raw_readl(base + AR71XX_SPI_REG_RDS)); - } - - static int rb4xx_spi_txrx(void __iomem *base, struct spi_transfer *t) -@@ -150,9 +159,9 @@ static int rb4xx_spi_txrx(void __iomem * - do_spi_byte(base, sdata); - - if (rx_ptr) { -- rx_ptr[i] = __raw_readl(base + SPI_REG_RDS) & 0xff; -+ rx_ptr[i] = __raw_readl(base + AR71XX_SPI_REG_RDS) & 0xff; - } else if (rxv_ptr) { -- unsigned char c = __raw_readl(base + SPI_REG_RDS); -+ unsigned char c = __raw_readl(base + AR71XX_SPI_REG_RDS); - if (rxv_ptr[i] != c) - return i; - } -@@ -201,9 +210,9 @@ static int rb4xx_spi_read_fast(struct rb - if (t->tx_buf && !t->verify) - return -1; - -- __raw_writel(SPI_FS_GPIO, base + SPI_REG_FS); -- __raw_writel(rbspi->spi_ctrl_fread, base + SPI_REG_CTRL); -- __raw_writel(0, base + SPI_REG_FS); -+ __raw_writel(AR71XX_SPI_FS_GPIO, base + AR71XX_SPI_REG_FS); -+ __raw_writel(rbspi->spi_ctrl_fread, base + AR71XX_SPI_REG_CTRL); -+ __raw_writel(0, base + AR71XX_SPI_REG_FS); - - if (t->rx_buf) { - memcpy(t->rx_buf, (const void *)addr, t->len); -@@ -216,9 +225,9 @@ static int rb4xx_spi_read_fast(struct rb - m->actual_length += t->len; - - if (rbspi->spi_ctrl_flash != rbspi->spi_ctrl_fread) { -- __raw_writel(SPI_FS_GPIO, base + SPI_REG_FS); -- __raw_writel(rbspi->spi_ctrl_flash, base + SPI_REG_CTRL); -- __raw_writel(0, base + SPI_REG_FS); -+ __raw_writel(AR71XX_SPI_FS_GPIO, base + AR71XX_SPI_REG_FS); -+ __raw_writel(rbspi->spi_ctrl_flash, base + AR71XX_SPI_REG_CTRL); -+ __raw_writel(0, base + AR71XX_SPI_REG_FS); - } - - return 0; -@@ -237,8 +246,8 @@ static int rb4xx_spi_msg(struct rb4xx_sp - if (rb4xx_spi_read_fast(rbspi, m) == 0) - return -1; - -- __raw_writel(SPI_FS_GPIO, base + SPI_REG_FS); -- __raw_writel(SPI_CTRL_FASTEST, base + SPI_REG_CTRL); -+ __raw_writel(AR71XX_SPI_FS_GPIO, base + AR71XX_SPI_REG_FS); -+ __raw_writel(SPI_CTRL_FASTEST, base + AR71XX_SPI_REG_CTRL); - do_spi_init(m->spi); - - list_for_each_entry(t, &m->transfers, transfer_list) { -@@ -262,8 +271,8 @@ static int rb4xx_spi_msg(struct rb4xx_sp - } - - do_spi_finish(base); -- __raw_writel(rbspi->spi_ctrl_flash, base + SPI_REG_CTRL); -- __raw_writel(0, base + SPI_REG_FS); -+ __raw_writel(rbspi->spi_ctrl_flash, base + AR71XX_SPI_REG_CTRL); -+ __raw_writel(0, base + AR71XX_SPI_REG_FS); - return -1; - } - -@@ -352,11 +361,12 @@ static int rb4xx_spi_setup(struct spi_de - return 0; - } - --static unsigned get_spi_ctrl(unsigned hz_max, const char *name) -+static unsigned get_spi_ctrl(struct rb4xx_spi *rbspi, unsigned hz_max, -+ const char *name) - { - unsigned div; - -- div = (ar71xx_ahb_freq - 1) / (2 * hz_max); -+ div = (rbspi->ahb_freq - 1) / (2 * hz_max); - - /* - * CPU has a bug at (div == 0) - first bit read is random -@@ -365,7 +375,7 @@ static unsigned get_spi_ctrl(unsigned hz - ++div; - - if (name) { -- unsigned ahb_khz = (ar71xx_ahb_freq + 500) / 1000; -+ unsigned ahb_khz = (rbspi->ahb_freq + 500) / 1000; - unsigned div_real = 2 * (div + 1); - pr_debug("rb4xx: %s SPI clock %u kHz (AHB %u kHz / %u)\n", - name, -@@ -396,23 +406,40 @@ static int rb4xx_spi_probe(struct platfo - master->transfer = rb4xx_spi_transfer; - - rbspi = spi_master_get_devdata(master); -+ -+ rbspi->ahb_clk = clk_get(&pdev->dev, "ahb"); -+ if (IS_ERR(rbspi->ahb_clk)) { -+ err = PTR_ERR(rbspi->ahb_clk); -+ goto err_put_master; -+ } -+ -+ err = clk_enable(rbspi->ahb_clk); -+ if (err) -+ goto err_clk_put; -+ -+ rbspi->ahb_freq = clk_get_rate(rbspi->ahb_clk); -+ if (!rbspi->ahb_freq) { -+ err = -EINVAL; -+ goto err_clk_disable; -+ } -+ - platform_set_drvdata(pdev, rbspi); - - r = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (r == NULL) { - err = -ENOENT; -- goto err_put_master; -+ goto err_clk_disable; - } - - rbspi->base = ioremap(r->start, r->end - r->start + 1); - if (!rbspi->base) { - err = -ENXIO; -- goto err_put_master; -+ goto err_clk_disable; - } - - rbspi->master = master; -- rbspi->spi_ctrl_flash = get_spi_ctrl(SPI_FLASH_HZ, "FLASH"); -- rbspi->spi_ctrl_fread = get_spi_ctrl(SPI_CPLD_HZ, "CPLD"); -+ rbspi->spi_ctrl_flash = get_spi_ctrl(rbspi, SPI_FLASH_HZ, "FLASH"); -+ rbspi->spi_ctrl_fread = get_spi_ctrl(rbspi, SPI_CPLD_HZ, "CPLD"); - rbspi->cs_wait = -1; - - spin_lock_init(&rbspi->lock); -@@ -428,6 +455,10 @@ static int rb4xx_spi_probe(struct platfo - - err_iounmap: - iounmap(rbspi->base); -+err_clk_disable: -+ clk_disable(rbspi->ahb_clk); -+err_clk_put: -+ clk_put(rbspi->ahb_clk); - err_put_master: - platform_set_drvdata(pdev, NULL); - spi_master_put(master); -@@ -440,6 +471,8 @@ static int rb4xx_spi_remove(struct platf - struct rb4xx_spi *rbspi = platform_get_drvdata(pdev); - - iounmap(rbspi->base); -+ clk_disable(rbspi->ahb_clk); -+ clk_put(rbspi->ahb_clk); - platform_set_drvdata(pdev, NULL); - spi_master_put(rbspi->master); - |