[v3,1/2] serial/imx: get rid of the uses of cpu_is_mx1()

Message ID	1309972820-18547-2-git-send-email-shawn.guo@linaro.org
State	New
Headers	show Return-Path: <linux-arm-kernel-bounces+incoming-imx=patchwork.ozlabs.org@lists.infradead.org> From: Shawn Guo <shawn.guo@linaro.org> To: <linux-serial@vger.kernel.org> Subject: [PATCH v3 1/2] serial/imx: get rid of the uses of cpu_is_mx1() Date: Thu, 7 Jul 2011 01:20:19 +0800 Message-ID: <1309972820-18547-2-git-send-email-shawn.guo@linaro.org> In-Reply-To: <1309972820-18547-1-git-send-email-shawn.guo@linaro.org> References: <1309972820-18547-1-git-send-email-shawn.guo@linaro.org> MIME-Version: 1.0 summary: Content analysis details: (-0.7 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at http://www.dnswl.org/, low trust [213.199.154.142 listed in list.dnswl.org] Cc: patches@linaro.org, devicetree-discuss@lists.ozlabs.org, Shawn Guo <shawn.guo@linaro.org>, Sascha Hauer <s.hauer@pengutronix.de>, linux-arm-kernel@lists.infradead.org, Alan Cox <alan@linux.intel.com> Precedence: list Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: linux-arm-kernel-bounces@lists.infradead.org Errors-To: linux-arm-kernel-bounces+incoming-imx=patchwork.ozlabs.org@lists.infradead.org

diff --git a/arch/arm/mach-imx/clock-imx1.c b/arch/arm/mach-imx/clock-imx1.c index dcc4172..4aabeb2 100644 --- a/arch/arm/mach-imx/clock-imx1.c +++ b/arch/arm/mach-imx/clock-imx1.c @@ -587,9 +587,9 @@ static struct clk_lookup lookups[] __initdata = { _REGISTER_CLOCK(NULL, "mma", mma_clk) _REGISTER_CLOCK("imx_udc.0", NULL, usbd_clk) _REGISTER_CLOCK(NULL, "gpt", gpt_clk) - _REGISTER_CLOCK("imx-uart.0", NULL, uart_clk) - _REGISTER_CLOCK("imx-uart.1", NULL, uart_clk) - _REGISTER_CLOCK("imx-uart.2", NULL, uart_clk) + _REGISTER_CLOCK("imx1-uart.0", NULL, uart_clk) + _REGISTER_CLOCK("imx1-uart.1", NULL, uart_clk) + _REGISTER_CLOCK("imx1-uart.2", NULL, uart_clk) _REGISTER_CLOCK("imx-i2c.0", NULL, i2c_clk) _REGISTER_CLOCK("imx1-cspi.0", NULL, spi_clk) _REGISTER_CLOCK("imx1-cspi.1", NULL, spi_clk) diff --git a/arch/arm/mach-imx/clock-imx21.c b/arch/arm/mach-imx/clock-imx21.c index bf30a8c..ee15d8c 100644 --- a/arch/arm/mach-imx/clock-imx21.c +++ b/arch/arm/mach-imx/clock-imx21.c @@ -1162,10 +1162,10 @@ static struct clk_lookup lookups[] = { _REGISTER_CLOCK(NULL, "perclk3", per_clk[2]) _REGISTER_CLOCK(NULL, "perclk4", per_clk[3]) _REGISTER_CLOCK(NULL, "clko", clko_clk) - _REGISTER_CLOCK("imx-uart.0", NULL, uart_clk[0]) - _REGISTER_CLOCK("imx-uart.1", NULL, uart_clk[1]) - _REGISTER_CLOCK("imx-uart.2", NULL, uart_clk[2]) - _REGISTER_CLOCK("imx-uart.3", NULL, uart_clk[3]) + _REGISTER_CLOCK("imx21-uart.0", NULL, uart_clk[0]) + _REGISTER_CLOCK("imx21-uart.1", NULL, uart_clk[1]) + _REGISTER_CLOCK("imx21-uart.2", NULL, uart_clk[2]) + _REGISTER_CLOCK("imx21-uart.3", NULL, uart_clk[3]) _REGISTER_CLOCK(NULL, "gpt1", gpt_clk[0]) _REGISTER_CLOCK(NULL, "gpt1", gpt_clk[1]) _REGISTER_CLOCK(NULL, "gpt1", gpt_clk[2]) diff --git a/arch/arm/mach-imx/clock-imx25.c b/arch/arm/mach-imx/clock-imx25.c index a65838f..42ef76a 100644 --- a/arch/arm/mach-imx/clock-imx25.c +++ b/arch/arm/mach-imx/clock-imx25.c @@ -272,11 +272,12 @@ DEFINE_CLOCK(can2_clk, 1, CCM_CGCR1, 3, get_rate_ipg, NULL, NULL); }, static struct clk_lookup lookups[] = { - _REGISTER_CLOCK("imx-uart.0", NULL, uart1_clk) - _REGISTER_CLOCK("imx-uart.1", NULL, uart2_clk) - _REGISTER_CLOCK("imx-uart.2", NULL, uart3_clk) - _REGISTER_CLOCK("imx-uart.3", NULL, uart4_clk) - _REGISTER_CLOCK("imx-uart.4", NULL, uart5_clk) + /* i.mx25 has the i.mx21 type uart */ + _REGISTER_CLOCK("imx21-uart.0", NULL, uart1_clk) + _REGISTER_CLOCK("imx21-uart.1", NULL, uart2_clk) + _REGISTER_CLOCK("imx21-uart.2", NULL, uart3_clk) + _REGISTER_CLOCK("imx21-uart.3", NULL, uart4_clk) + _REGISTER_CLOCK("imx21-uart.4", NULL, uart5_clk) _REGISTER_CLOCK("mxc-ehci.0", "usb", usbotg_clk) _REGISTER_CLOCK("mxc-ehci.1", "usb", usbotg_clk) _REGISTER_CLOCK("mxc-ehci.2", "usb", usbotg_clk) diff --git a/arch/arm/mach-imx/clock-imx27.c b/arch/arm/mach-imx/clock-imx27.c index 583f251..8c9a681 100644 --- a/arch/arm/mach-imx/clock-imx27.c +++ b/arch/arm/mach-imx/clock-imx27.c @@ -624,12 +624,13 @@ DEFINE_CLOCK1(csi_clk, 0, NULL, 0, parent, &csi_clk1, &per4_clk); }, static struct clk_lookup lookups[] = { - _REGISTER_CLOCK("imx-uart.0", NULL, uart1_clk) - _REGISTER_CLOCK("imx-uart.1", NULL, uart2_clk) - _REGISTER_CLOCK("imx-uart.2", NULL, uart3_clk) - _REGISTER_CLOCK("imx-uart.3", NULL, uart4_clk) - _REGISTER_CLOCK("imx-uart.4", NULL, uart5_clk) - _REGISTER_CLOCK("imx-uart.5", NULL, uart6_clk) + /* i.mx27 has the i.mx21 type uart */ + _REGISTER_CLOCK("imx21-uart.0", NULL, uart1_clk) + _REGISTER_CLOCK("imx21-uart.1", NULL, uart2_clk) + _REGISTER_CLOCK("imx21-uart.2", NULL, uart3_clk) + _REGISTER_CLOCK("imx21-uart.3", NULL, uart4_clk) + _REGISTER_CLOCK("imx21-uart.4", NULL, uart5_clk) + _REGISTER_CLOCK("imx21-uart.5", NULL, uart6_clk) _REGISTER_CLOCK(NULL, "gpt1", gpt1_clk) _REGISTER_CLOCK(NULL, "gpt2", gpt2_clk) _REGISTER_CLOCK(NULL, "gpt3", gpt3_clk) diff --git a/arch/arm/mach-imx/clock-imx31.c b/arch/arm/mach-imx/clock-imx31.c index 25f343f..8d212a9 100644 --- a/arch/arm/mach-imx/clock-imx31.c +++ b/arch/arm/mach-imx/clock-imx31.c @@ -547,11 +547,12 @@ static struct clk_lookup lookups[] = { _REGISTER_CLOCK("fsl-usb2-udc", "usb", usb_clk1) _REGISTER_CLOCK("fsl-usb2-udc", "usb_ahb", usb_clk2) _REGISTER_CLOCK("mx3-camera.0", NULL, csi_clk) - _REGISTER_CLOCK("imx-uart.0", NULL, uart1_clk) - _REGISTER_CLOCK("imx-uart.1", NULL, uart2_clk) - _REGISTER_CLOCK("imx-uart.2", NULL, uart3_clk) - _REGISTER_CLOCK("imx-uart.3", NULL, uart4_clk) - _REGISTER_CLOCK("imx-uart.4", NULL, uart5_clk) + /* i.mx31 has the i.mx21 type uart */ + _REGISTER_CLOCK("imx21-uart.0", NULL, uart1_clk) + _REGISTER_CLOCK("imx21-uart.1", NULL, uart2_clk) + _REGISTER_CLOCK("imx21-uart.2", NULL, uart3_clk) + _REGISTER_CLOCK("imx21-uart.3", NULL, uart4_clk) + _REGISTER_CLOCK("imx21-uart.4", NULL, uart5_clk) _REGISTER_CLOCK("imx-i2c.0", NULL, i2c1_clk) _REGISTER_CLOCK("imx-i2c.1", NULL, i2c2_clk) _REGISTER_CLOCK("imx-i2c.2", NULL, i2c3_clk) diff --git a/arch/arm/mach-imx/clock-imx35.c b/arch/arm/mach-imx/clock-imx35.c index 5a4cc1e..b44cb06 100644 --- a/arch/arm/mach-imx/clock-imx35.c +++ b/arch/arm/mach-imx/clock-imx35.c @@ -486,9 +486,10 @@ static struct clk_lookup lookups[] = { _REGISTER_CLOCK(NULL, "spdif", spdif_clk) _REGISTER_CLOCK("imx-ssi.0", NULL, ssi1_clk) _REGISTER_CLOCK("imx-ssi.1", NULL, ssi2_clk) - _REGISTER_CLOCK("imx-uart.0", NULL, uart1_clk) - _REGISTER_CLOCK("imx-uart.1", NULL, uart2_clk) - _REGISTER_CLOCK("imx-uart.2", NULL, uart3_clk) + /* i.mx35 has the i.mx21 type uart */ + _REGISTER_CLOCK("imx21-uart.0", NULL, uart1_clk) + _REGISTER_CLOCK("imx21-uart.1", NULL, uart2_clk) + _REGISTER_CLOCK("imx21-uart.2", NULL, uart3_clk) _REGISTER_CLOCK("mxc-ehci.0", "usb", usbotg_clk) _REGISTER_CLOCK("mxc-ehci.1", "usb", usbotg_clk) _REGISTER_CLOCK("mxc-ehci.2", "usb", usbotg_clk) diff --git a/arch/arm/mach-mx5/clock-mx51-mx53.c b/arch/arm/mach-mx5/clock-mx51-mx53.c index 699b0d2..6634f6c 100644 --- a/arch/arm/mach-mx5/clock-mx51-mx53.c +++ b/arch/arm/mach-mx5/clock-mx51-mx53.c @@ -1422,9 +1422,10 @@ DEFINE_CLOCK(ipu_di1_clk, 0, MXC_CCM_CCGR6, MXC_CCM_CCGRx_CG6_OFFSET, }, static struct clk_lookup mx51_lookups[] = { - _REGISTER_CLOCK("imx-uart.0", NULL, uart1_clk) - _REGISTER_CLOCK("imx-uart.1", NULL, uart2_clk) - _REGISTER_CLOCK("imx-uart.2", NULL, uart3_clk) + /* i.mx51 has the i.mx21 type uart */ + _REGISTER_CLOCK("imx21-uart.0", NULL, uart1_clk) + _REGISTER_CLOCK("imx21-uart.1", NULL, uart2_clk) + _REGISTER_CLOCK("imx21-uart.2", NULL, uart3_clk) _REGISTER_CLOCK(NULL, "gpt", gpt_clk) _REGISTER_CLOCK("fec.0", NULL, fec_clk) _REGISTER_CLOCK("mxc_pwm.0", "pwm", pwm1_clk) @@ -1469,11 +1470,12 @@ static struct clk_lookup mx51_lookups[] = { }; static struct clk_lookup mx53_lookups[] = { - _REGISTER_CLOCK("imx-uart.0", NULL, uart1_clk) - _REGISTER_CLOCK("imx-uart.1", NULL, uart2_clk) - _REGISTER_CLOCK("imx-uart.2", NULL, uart3_clk) - _REGISTER_CLOCK("imx-uart.3", NULL, uart4_clk) - _REGISTER_CLOCK("imx-uart.4", NULL, uart5_clk) + /* i.mx53 has the i.mx21 type uart */ + _REGISTER_CLOCK("imx21-uart.0", NULL, uart1_clk) + _REGISTER_CLOCK("imx21-uart.1", NULL, uart2_clk) + _REGISTER_CLOCK("imx21-uart.2", NULL, uart3_clk) + _REGISTER_CLOCK("imx21-uart.3", NULL, uart4_clk) + _REGISTER_CLOCK("imx21-uart.4", NULL, uart5_clk) _REGISTER_CLOCK(NULL, "gpt", gpt_clk) _REGISTER_CLOCK("fec.0", NULL, fec_clk) _REGISTER_CLOCK(NULL, "iim_clk", iim_clk) diff --git a/arch/arm/plat-mxc/devices/platform-imx-uart.c b/arch/arm/plat-mxc/devices/platform-imx-uart.c index cfce8c9..2020d84 100644 --- a/arch/arm/plat-mxc/devices/platform-imx-uart.c +++ b/arch/arm/plat-mxc/devices/platform-imx-uart.c @@ -152,7 +152,7 @@ struct platform_device *__init imx_add_imx_uart_3irq( }, }; - return imx_add_platform_device("imx-uart", data->id, res, + return imx_add_platform_device("imx1-uart", data->id, res, ARRAY_SIZE(res), pdata, sizeof(*pdata)); } @@ -172,6 +172,7 @@ struct platform_device *__init imx_add_imx_uart_1irq( }, }; - return imx_add_platform_device("imx-uart", data->id, res, ARRAY_SIZE(res), - pdata, sizeof(*pdata)); + /* i.mx21 type uart runs on all i.mx except i.mx1 */ + return imx_add_platform_device("imx21-uart", data->id, + res, ARRAY_SIZE(res), pdata, sizeof(*pdata)); } diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c index 22fe801..99d844d 100644 --- a/drivers/tty/serial/imx.c +++ b/drivers/tty/serial/imx.c @@ -48,7 +48,6 @@ #include <asm/io.h> #include <asm/irq.h> -#include <mach/hardware.h> #include <mach/imx-uart.h> /* Register definitions */ @@ -66,8 +65,9 @@ #define UBIR 0xa4 /* BRM Incremental Register */ #define UBMR 0xa8 /* BRM Modulator Register */ #define UBRC 0xac /* Baud Rate Count Register */ -#define MX2_ONEMS 0xb0 /* One Millisecond register */ -#define UTS (cpu_is_mx1() ? 0xd0 : 0xb4) /* UART Test Register */ +#define IMX21_ONEMS 0xb0 /* One Millisecond register */ +#define IMX1_UTS 0xd0 /* UART Test Register on i.mx1 */ +#define IMX21_UTS 0xb4 /* UART Test Register on all other i.mx*/ /* UART Control Register Bit Fields.*/ #define URXD_CHARRDY (1<<15) @@ -87,7 +87,7 @@ #define UCR1_RTSDEN (1<<5) /* RTS delta interrupt enable */ #define UCR1_SNDBRK (1<<4) /* Send break */ #define UCR1_TDMAEN (1<<3) /* Transmitter ready DMA enable */ -#define MX1_UCR1_UARTCLKEN (1<<2) /* UART clock enabled, mx1 only */ +#define IMX1_UCR1_UARTCLKEN (1<<2) /* UART clock enabled, i.mx1 only */ #define UCR1_DOZE (1<<1) /* Doze */ #define UCR1_UARTEN (1<<0) /* UART enabled */ #define UCR2_ESCI (1<<15) /* Escape seq interrupt enable */ @@ -113,9 +113,7 @@ #define UCR3_RXDSEN (1<<6) /* Receive status interrupt enable */ #define UCR3_AIRINTEN (1<<5) /* Async IR wake interrupt enable */ #define UCR3_AWAKEN (1<<4) /* Async wake interrupt enable */ -#define MX1_UCR3_REF25 (1<<3) /* Ref freq 25 MHz, only on mx1 */ -#define MX1_UCR3_REF30 (1<<2) /* Ref Freq 30 MHz, only on mx1 */ -#define MX2_UCR3_RXDMUXSEL (1<<2) /* RXD Muxed Input Select, on mx2/mx3 */ +#define IMX21_UCR3_RXDMUXSEL (1<<2) /* RXD Muxed Input Select */ #define UCR3_INVT (1<<1) /* Inverted Infrared transmission */ #define UCR3_BPEN (1<<0) /* Preset registers enable */ #define UCR4_CTSTL_SHF 10 /* CTS trigger level shift */ @@ -181,6 +179,18 @@ #define UART_NR 8 +/* i.mx21 type uart runs on all i.mx except i.mx1 */ +enum imx_uart_type { + IMX1_UART, + IMX21_UART, +}; + +/* device type dependent stuff */ +struct imx_uart_data { + unsigned uts_reg; + enum imx_uart_type devtype; +}; + struct imx_port { struct uart_port port; struct timer_list timer; @@ -192,6 +202,7 @@ struct imx_port { unsigned int irda_inv_tx:1; unsigned short trcv_delay; /* transceiver delay */ struct clk *clk; + struct imx_uart_data *devdata; }; #ifdef CONFIG_IRDA @@ -200,6 +211,44 @@ struct imx_port { #define USE_IRDA(sport) (0) #endif +static struct imx_uart_data imx_uart_devdata[] = { + [IMX1_UART] = { + .uts_reg = IMX1_UTS, + .devtype = IMX1_UART, + }, + [IMX21_UART] = { + .uts_reg = IMX21_UTS, + .devtype = IMX21_UART, + }, +}; + +static struct platform_device_id imx_uart_devtype[] = { + { + .name = "imx1-uart", + .driver_data = (kernel_ulong_t) &imx_uart_devdata[IMX1_UART], + }, { + .name = "imx21-uart", + .driver_data = (kernel_ulong_t) &imx_uart_devdata[IMX21_UART], + }, { + /* sentinel */ + } +}; + +static inline unsigned uts_reg(struct imx_port *sport) +{ + return sport->devdata->uts_reg; +} + +static inline int is_imx1_uart(struct imx_port *sport) +{ + return sport->devdata->devtype == IMX1_UART; +} + +static inline int is_imx21_uart(struct imx_port *sport) +{ + return sport->devdata->devtype == IMX21_UART; +} + /* * Handle any change of modem status signal since we were last called. */ @@ -326,7 +375,8 @@ static inline void imx_transmit_buffer(struct imx_port *sport) struct circ_buf *xmit = &sport->port.state->xmit; while (!uart_circ_empty(xmit) && - !(readl(sport->port.membase + UTS) & UTS_TXFULL)) { + !(readl(sport->port.membase + uts_reg(sport)) + & UTS_TXFULL)) { /* send xmit->buf[xmit->tail] * out the port here */ writel(xmit->buf[xmit->tail], sport->port.membase + URTX0); @@ -373,7 +423,7 @@ static void imx_start_tx(struct uart_port *port) writel(temp, sport->port.membase + UCR4); } - if (readl(sport->port.membase + UTS) & UTS_TXEMPTY) + if (readl(sport->port.membase + uts_reg(sport)) & UTS_TXEMPTY) imx_transmit_buffer(sport); } @@ -689,9 +739,9 @@ static int imx_startup(struct uart_port *port) } } - if (!cpu_is_mx1()) { + if (is_imx21_uart(sport)) { temp = readl(sport->port.membase + UCR3); - temp |= MX2_UCR3_RXDMUXSEL; + temp |= IMX21_UCR3_RXDMUXSEL; writel(temp, sport->port.membase + UCR3); } @@ -923,9 +973,9 @@ imx_set_termios(struct uart_port *port, struct ktermios *termios, writel(num, sport->port.membase + UBIR); writel(denom, sport->port.membase + UBMR); - if (!cpu_is_mx1()) + if (is_imx21_uart(sport)) writel(sport->port.uartclk / div / 1000, - sport->port.membase + MX2_ONEMS); + sport->port.membase + IMX21_ONEMS); writel(old_ucr1, sport->port.membase + UCR1); @@ -1041,7 +1091,7 @@ static void imx_console_putchar(struct uart_port *port, int ch) { struct imx_port *sport = (struct imx_port *)port; - while (readl(sport->port.membase + UTS) & UTS_TXFULL) + while (readl(sport->port.membase + uts_reg(sport)) & UTS_TXFULL) barrier(); writel(ch, sport->port.membase + URTX0); @@ -1062,8 +1112,8 @@ imx_console_write(struct console *co, const char *s, unsigned int count) ucr1 = old_ucr1 = readl(sport->port.membase + UCR1); old_ucr2 = readl(sport->port.membase + UCR2); - if (cpu_is_mx1()) - ucr1 |= MX1_UCR1_UARTCLKEN; + if (is_imx1_uart(sport)) + ucr1 |= IMX1_UCR1_UARTCLKEN; ucr1 |= UCR1_UARTEN; ucr1 &= ~(UCR1_TXMPTYEN | UCR1_RRDYEN | UCR1_RTSDEN); @@ -1262,6 +1312,7 @@ static int serial_imx_probe(struct platform_device *pdev) init_timer(&sport->timer); sport->timer.function = imx_timeout; sport->timer.data = (unsigned long)sport; + sport->devdata = (struct imx_uart_data *) pdev->id_entry->driver_data; sport->clk = clk_get(&pdev->dev, "uart"); if (IS_ERR(sport->clk)) { @@ -1340,6 +1391,7 @@ static struct platform_driver serial_imx_driver = { .suspend = serial_imx_suspend, .resume = serial_imx_resume, + .id_table = imx_uart_devtype, .driver = { .name = "imx-uart", .owner = THIS_MODULE,

[v3,1/2] serial/imx: get rid of the uses of cpu_is_mx1()

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