From b92225c7164dd75bca6bb0ebbac1355998fac8ba Mon Sep 17 00:00:00 2001 From: Greg Ungerer Date: Sat, 24 Dec 2011 00:53:54 +1000 Subject: [PATCH] m68knommu: simplify the 520x UART setup code Simplify the UART setup code so that it no longer loops for each UART present. Just make it do all the work it needs in a single function. This will make the code easier to share when we move to a single set of platform data for ColdFire UARTs. Signed-off-by: Greg Ungerer --- arch/m68k/platform/520x/config.c | 42 +++++++++----------------------- 1 file changed, 12 insertions(+), 30 deletions(-) diff --git a/arch/m68k/platform/520x/config.c b/arch/m68k/platform/520x/config.c index 27c7d056dc1f..fe203bd7a56b 100644 --- a/arch/m68k/platform/520x/config.c +++ b/arch/m68k/platform/520x/config.c @@ -227,41 +227,23 @@ static struct platform_device *m520x_devices[] __initdata = { /***************************************************************************/ -static void __init m520x_uart_init_line(int line, int irq) +static void __init m520x_uarts_init(void) { u16 par; u8 par2; - switch (line) { - case 0: - par = readw(MCF_GPIO_PAR_UART); - par |= MCF_GPIO_PAR_UART_PAR_UTXD0 | - MCF_GPIO_PAR_UART_PAR_URXD0; - writew(par, MCF_GPIO_PAR_UART); - break; - case 1: - par = readw(MCF_GPIO_PAR_UART); - par |= MCF_GPIO_PAR_UART_PAR_UTXD1 | - MCF_GPIO_PAR_UART_PAR_URXD1; - writew(par, MCF_GPIO_PAR_UART); - break; - case 2: - par2 = readb(MCF_GPIO_PAR_FECI2C); - par2 &= ~0x0F; - par2 |= MCF_GPIO_PAR_FECI2C_PAR_SCL_UTXD2 | - MCF_GPIO_PAR_FECI2C_PAR_SDA_URXD2; - writeb(par2, MCF_GPIO_PAR_FECI2C); - break; - } -} - -static void __init m520x_uarts_init(void) -{ - const int nrlines = ARRAY_SIZE(m520x_uart_platform); - int line; + /* UART0 and UART1 GPIO pin setup */ + par = readw(MCF_GPIO_PAR_UART); + par |= MCF_GPIO_PAR_UART_PAR_UTXD0 | MCF_GPIO_PAR_UART_PAR_URXD0; + par |= MCF_GPIO_PAR_UART_PAR_UTXD1 | MCF_GPIO_PAR_UART_PAR_URXD1; + writew(par, MCF_GPIO_PAR_UART); - for (line = 0; (line < nrlines); line++) - m520x_uart_init_line(line, m520x_uart_platform[line].irq); + /* UART1 GPIO pin setup */ + par2 = readb(MCF_GPIO_PAR_FECI2C); + par2 &= ~0x0F; + par2 |= MCF_GPIO_PAR_FECI2C_PAR_SCL_UTXD2 | + MCF_GPIO_PAR_FECI2C_PAR_SDA_URXD2; + writeb(par2, MCF_GPIO_PAR_FECI2C); } /***************************************************************************/ -- GitLab