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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-05 18:39:59 +00:00
ARM: Orion: UART: Get the clock rate via clk_get_rate().
Let the machine pass to the platform which clock is used by the uart. Enable the clock and use clk_get_rate() to determine its rate. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Tested-by: Jamie Lentin <jm@lentin.co.uk> Signed-off-by: Mike Turquette <mturquette@linaro.org>
This commit is contained in:
parent
4f04be62af
commit
74c335761a
6 changed files with 32 additions and 26 deletions
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@ -128,7 +128,7 @@ void __init dove_sata_init(struct mv_sata_platform_data *sata_data)
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void __init dove_uart0_init(void)
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{
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orion_uart0_init(DOVE_UART0_VIRT_BASE, DOVE_UART0_PHYS_BASE,
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IRQ_DOVE_UART_0, get_tclk());
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IRQ_DOVE_UART_0, tclk);
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}
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/*****************************************************************************
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@ -137,7 +137,7 @@ void __init dove_uart0_init(void)
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void __init dove_uart1_init(void)
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{
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orion_uart1_init(DOVE_UART1_VIRT_BASE, DOVE_UART1_PHYS_BASE,
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IRQ_DOVE_UART_1, get_tclk());
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IRQ_DOVE_UART_1, tclk);
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}
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/*****************************************************************************
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@ -146,7 +146,7 @@ void __init dove_uart1_init(void)
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void __init dove_uart2_init(void)
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{
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orion_uart2_init(DOVE_UART2_VIRT_BASE, DOVE_UART2_PHYS_BASE,
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IRQ_DOVE_UART_2, get_tclk());
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IRQ_DOVE_UART_2, tclk);
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}
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/*****************************************************************************
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@ -155,7 +155,7 @@ void __init dove_uart2_init(void)
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void __init dove_uart3_init(void)
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{
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orion_uart3_init(DOVE_UART3_VIRT_BASE, DOVE_UART3_PHYS_BASE,
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IRQ_DOVE_UART_3, get_tclk());
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IRQ_DOVE_UART_3, tclk);
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}
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/*****************************************************************************
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@ -299,7 +299,7 @@ void __init kirkwood_i2c_init(void)
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void __init kirkwood_uart0_init(void)
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{
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orion_uart0_init(UART0_VIRT_BASE, UART0_PHYS_BASE,
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IRQ_KIRKWOOD_UART_0, kirkwood_tclk);
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IRQ_KIRKWOOD_UART_0, tclk);
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}
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@ -309,7 +309,7 @@ void __init kirkwood_uart0_init(void)
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void __init kirkwood_uart1_init(void)
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{
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orion_uart1_init(UART1_VIRT_BASE, UART1_PHYS_BASE,
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IRQ_KIRKWOOD_UART_1, kirkwood_tclk);
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IRQ_KIRKWOOD_UART_1, tclk);
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}
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/*****************************************************************************
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@ -299,7 +299,7 @@ void __init mv78xx0_sata_init(struct mv_sata_platform_data *sata_data)
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void __init mv78xx0_uart0_init(void)
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{
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orion_uart0_init(UART0_VIRT_BASE, UART0_PHYS_BASE,
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IRQ_MV78XX0_UART_0, get_tclk());
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IRQ_MV78XX0_UART_0, tclk);
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}
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@ -309,7 +309,7 @@ void __init mv78xx0_uart0_init(void)
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void __init mv78xx0_uart1_init(void)
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{
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orion_uart1_init(UART1_VIRT_BASE, UART1_PHYS_BASE,
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IRQ_MV78XX0_UART_1, get_tclk());
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IRQ_MV78XX0_UART_1, tclk);
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}
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@ -319,7 +319,7 @@ void __init mv78xx0_uart1_init(void)
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void __init mv78xx0_uart2_init(void)
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{
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orion_uart2_init(UART2_VIRT_BASE, UART2_PHYS_BASE,
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IRQ_MV78XX0_UART_2, get_tclk());
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IRQ_MV78XX0_UART_2, tclk);
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}
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/*****************************************************************************
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@ -328,7 +328,7 @@ void __init mv78xx0_uart2_init(void)
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void __init mv78xx0_uart3_init(void)
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{
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orion_uart3_init(UART3_VIRT_BASE, UART3_PHYS_BASE,
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IRQ_MV78XX0_UART_3, get_tclk());
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IRQ_MV78XX0_UART_3, tclk);
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}
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/*****************************************************************************
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@ -156,7 +156,7 @@ void __init orion5x_spi_init()
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void __init orion5x_uart0_init(void)
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{
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orion_uart0_init(UART0_VIRT_BASE, UART0_PHYS_BASE,
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IRQ_ORION5X_UART0, orion5x_tclk);
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IRQ_ORION5X_UART0, tclk);
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}
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/*****************************************************************************
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@ -165,7 +165,7 @@ void __init orion5x_uart0_init(void)
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void __init orion5x_uart1_init(void)
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{
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orion_uart1_init(UART1_VIRT_BASE, UART1_PHYS_BASE,
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IRQ_ORION5X_UART1, orion5x_tclk);
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IRQ_ORION5X_UART1, tclk);
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}
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/*****************************************************************************
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@ -75,6 +75,12 @@ static void fill_resources(struct platform_device *device,
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/*****************************************************************************
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* UART
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****************************************************************************/
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static unsigned long __init uart_get_clk_rate(struct clk *clk)
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{
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clk_prepare_enable(clk);
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return clk_get_rate(clk);
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}
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static void __init uart_complete(
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struct platform_device *orion_uart,
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struct plat_serial8250_port *data,
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@ -82,12 +88,12 @@ static void __init uart_complete(
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unsigned int membase,
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resource_size_t mapbase,
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unsigned int irq,
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unsigned int uartclk)
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struct clk *clk)
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{
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data->mapbase = mapbase;
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data->membase = (void __iomem *)membase;
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data->irq = irq;
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data->uartclk = uartclk;
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data->uartclk = uart_get_clk_rate(clk);
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orion_uart->dev.platform_data = data;
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fill_resources(orion_uart, resources, mapbase, 0xff, irq);
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@ -116,10 +122,10 @@ static struct platform_device orion_uart0 = {
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void __init orion_uart0_init(unsigned int membase,
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resource_size_t mapbase,
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unsigned int irq,
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unsigned int uartclk)
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struct clk *clk)
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{
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uart_complete(&orion_uart0, orion_uart0_data, orion_uart0_resources,
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membase, mapbase, irq, uartclk);
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membase, mapbase, irq, clk);
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}
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/*****************************************************************************
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@ -144,10 +150,10 @@ static struct platform_device orion_uart1 = {
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void __init orion_uart1_init(unsigned int membase,
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resource_size_t mapbase,
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unsigned int irq,
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unsigned int uartclk)
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struct clk *clk)
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{
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uart_complete(&orion_uart1, orion_uart1_data, orion_uart1_resources,
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membase, mapbase, irq, uartclk);
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membase, mapbase, irq, clk);
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}
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/*****************************************************************************
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@ -172,10 +178,10 @@ static struct platform_device orion_uart2 = {
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void __init orion_uart2_init(unsigned int membase,
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resource_size_t mapbase,
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unsigned int irq,
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unsigned int uartclk)
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struct clk *clk)
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{
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uart_complete(&orion_uart2, orion_uart2_data, orion_uart2_resources,
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membase, mapbase, irq, uartclk);
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membase, mapbase, irq, clk);
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}
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/*****************************************************************************
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@ -200,10 +206,10 @@ static struct platform_device orion_uart3 = {
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void __init orion_uart3_init(unsigned int membase,
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resource_size_t mapbase,
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unsigned int irq,
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unsigned int uartclk)
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struct clk *clk)
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{
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uart_complete(&orion_uart3, orion_uart3_data, orion_uart3_resources,
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membase, mapbase, irq, uartclk);
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membase, mapbase, irq, clk);
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}
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/*****************************************************************************
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@ -16,22 +16,22 @@ struct dsa_platform_data;
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void __init orion_uart0_init(unsigned int membase,
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resource_size_t mapbase,
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unsigned int irq,
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unsigned int uartclk);
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struct clk *clk);
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void __init orion_uart1_init(unsigned int membase,
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resource_size_t mapbase,
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unsigned int irq,
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unsigned int uartclk);
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struct clk *clk);
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void __init orion_uart2_init(unsigned int membase,
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resource_size_t mapbase,
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unsigned int irq,
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unsigned int uartclk);
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struct clk *clk);
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void __init orion_uart3_init(unsigned int membase,
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resource_size_t mapbase,
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unsigned int irq,
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unsigned int uartclk);
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struct clk *clk);
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void __init orion_rtc_init(unsigned long mapbase,
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unsigned long irq);
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