From 26a4bc66a6f57299027e04d90b14fe56a44c6d2b Mon Sep 17 00:00:00 2001 From: John Adamson Date: Fri, 22 Aug 2008 16:43:49 +1000 Subject: m68knommu: fix ColdFire 5272 serial baud rates in mcf.c I noticed (the hard way) that the mcf.c driver doesn't support the fractional precision register on the MCF5272. This makes the console dicey at 115200 baud and a system clock of 66.0 MHz. On the other hand, if your hardware is running at 66.666 MHz, it probably isn't a problem. Patch submitted by John Adamson Signed-off-by: Greg Ungerer --- drivers/serial/mcf.c | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'drivers') diff --git a/drivers/serial/mcf.c b/drivers/serial/mcf.c index b2001c5b145c..56841fe5f483 100644 --- a/drivers/serial/mcf.c +++ b/drivers/serial/mcf.c @@ -212,10 +212,18 @@ static void mcf_set_termios(struct uart_port *port, struct ktermios *termios, { unsigned long flags; unsigned int baud, baudclk; +#if defined(CONFIG_M5272) + unsigned int baudfr; +#endif unsigned char mr1, mr2; baud = uart_get_baud_rate(port, termios, old, 0, 230400); +#if defined(CONFIG_M5272) + baudclk = (MCF_BUSCLK / baud) / 32; + baudfr = (((MCF_BUSCLK / baud) + 1) / 2) % 16; +#else baudclk = ((MCF_BUSCLK / baud) + 16) / 32; +#endif mr1 = MCFUART_MR1_RXIRQRDY | MCFUART_MR1_RXERRCHAR; mr2 = 0; @@ -262,6 +270,9 @@ static void mcf_set_termios(struct uart_port *port, struct ktermios *termios, writeb(mr2, port->membase + MCFUART_UMR); writeb((baudclk & 0xff00) >> 8, port->membase + MCFUART_UBG1); writeb((baudclk & 0xff), port->membase + MCFUART_UBG2); +#if defined(CONFIG_M5272) + writeb((baudfr & 0x0f), port->membase + MCFUART_UFPD); +#endif writeb(MCFUART_UCSR_RXCLKTIMER | MCFUART_UCSR_TXCLKTIMER, port->membase + MCFUART_UCSR); writeb(MCFUART_UCR_RXENABLE | MCFUART_UCR_TXENABLE, -- cgit v1.2.3 From d4732d3c59b84bb093e11c8f755f32801b4bf86d Mon Sep 17 00:00:00 2001 From: Matt Waddel Date: Tue, 13 Jan 2009 17:13:06 +1000 Subject: m68knommu: add ColdFire M532x to the FEC configuration options Signed-off-by: Matt Waddel Signed-off-by: Greg Ungerer --- drivers/net/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig index 9fe8cb7d43ac..6bdfd47d679d 100644 --- a/drivers/net/Kconfig +++ b/drivers/net/Kconfig @@ -1829,7 +1829,7 @@ config 68360_ENET config FEC bool "FEC ethernet controller (of ColdFire CPUs)" - depends on M523x || M527x || M5272 || M528x || M520x + depends on M523x || M527x || M5272 || M528x || M520x || M532x help Say Y here if you want to use the built-in 10/100 Fast ethernet controller on some Motorola ColdFire processors. -- cgit v1.2.3 From b9d57f94bb0ed56a5a2b58552a9ff4453013ff0b Mon Sep 17 00:00:00 2001 From: Matt Waddel Date: Tue, 13 Jan 2009 17:14:20 +1000 Subject: m68knommu: correct the mii calculations for 532x ColdFire FEC Signed-off-by: Matt Waddel Signed-off-by: Greg Ungerer --- drivers/net/fec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/fec.c b/drivers/net/fec.c index 7e33c129d51c..2769083bfe83 100644 --- a/drivers/net/fec.c +++ b/drivers/net/fec.c @@ -1698,7 +1698,7 @@ static void __inline__ fec_set_mii(struct net_device *dev, struct fec_enet_priva /* * Set MII speed to 2.5 MHz */ - fep->phy_speed = ((((MCF_CLK / 2) / (2500000 / 10)) + 5) / 10) * 2; + fep->phy_speed = (MCF_CLK / 3) / (2500000 * 2 ) * 2; fecp->fec_mii_speed = fep->phy_speed; fec_restart(dev, 0); -- cgit v1.2.3