diff options
Diffstat (limited to 'arch/arm/mach-davinci/serial.c')
| -rw-r--r-- | arch/arm/mach-davinci/serial.c | 74 |
1 files changed, 10 insertions, 64 deletions
diff --git a/arch/arm/mach-davinci/serial.c b/arch/arm/mach-davinci/serial.c index 695075796522..c530c7333d0a 100644 --- a/arch/arm/mach-davinci/serial.c +++ b/arch/arm/mach-davinci/serial.c | |||
| @@ -33,6 +33,8 @@ | |||
| 33 | #include <mach/serial.h> | 33 | #include <mach/serial.h> |
| 34 | #include <mach/irqs.h> | 34 | #include <mach/irqs.h> |
| 35 | #include <mach/cputype.h> | 35 | #include <mach/cputype.h> |
| 36 | #include <mach/common.h> | ||
| 37 | |||
| 36 | #include "clock.h" | 38 | #include "clock.h" |
| 37 | 39 | ||
| 38 | static inline unsigned int serial_read_reg(struct plat_serial8250_port *up, | 40 | static inline unsigned int serial_read_reg(struct plat_serial8250_port *up, |
| @@ -49,44 +51,6 @@ static inline void serial_write_reg(struct plat_serial8250_port *p, int offset, | |||
| 49 | __raw_writel(value, IO_ADDRESS(p->mapbase) + offset); | 51 | __raw_writel(value, IO_ADDRESS(p->mapbase) + offset); |
| 50 | } | 52 | } |
| 51 | 53 | ||
| 52 | static struct plat_serial8250_port serial_platform_data[] = { | ||
| 53 | { | ||
| 54 | .mapbase = DAVINCI_UART0_BASE, | ||
| 55 | .irq = IRQ_UARTINT0, | ||
| 56 | .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | | ||
| 57 | UPF_IOREMAP, | ||
| 58 | .iotype = UPIO_MEM, | ||
| 59 | .regshift = 2, | ||
| 60 | }, | ||
| 61 | { | ||
| 62 | .mapbase = DAVINCI_UART1_BASE, | ||
| 63 | .irq = IRQ_UARTINT1, | ||
| 64 | .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | | ||
| 65 | UPF_IOREMAP, | ||
| 66 | .iotype = UPIO_MEM, | ||
| 67 | .regshift = 2, | ||
| 68 | }, | ||
| 69 | { | ||
| 70 | .mapbase = DAVINCI_UART2_BASE, | ||
| 71 | .irq = IRQ_UARTINT2, | ||
| 72 | .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | | ||
| 73 | UPF_IOREMAP, | ||
| 74 | .iotype = UPIO_MEM, | ||
| 75 | .regshift = 2, | ||
| 76 | }, | ||
| 77 | { | ||
| 78 | .flags = 0 | ||
| 79 | }, | ||
| 80 | }; | ||
| 81 | |||
| 82 | static struct platform_device serial_device = { | ||
| 83 | .name = "serial8250", | ||
| 84 | .id = PLAT8250_DEV_PLATFORM, | ||
| 85 | .dev = { | ||
| 86 | .platform_data = serial_platform_data, | ||
| 87 | }, | ||
| 88 | }; | ||
| 89 | |||
| 90 | static void __init davinci_serial_reset(struct plat_serial8250_port *p) | 54 | static void __init davinci_serial_reset(struct plat_serial8250_port *p) |
| 91 | { | 55 | { |
| 92 | unsigned int pwremu = 0; | 56 | unsigned int pwremu = 0; |
| @@ -106,35 +70,22 @@ static void __init davinci_serial_reset(struct plat_serial8250_port *p) | |||
| 106 | UART_DM646X_SCR_TX_WATERMARK); | 70 | UART_DM646X_SCR_TX_WATERMARK); |
| 107 | } | 71 | } |
| 108 | 72 | ||
| 109 | void __init davinci_serial_init(struct davinci_uart_config *info) | 73 | int __init davinci_serial_init(struct davinci_uart_config *info) |
| 110 | { | 74 | { |
| 111 | int i; | 75 | int i; |
| 112 | char name[16]; | 76 | char name[16]; |
| 113 | struct clk *uart_clk; | 77 | struct clk *uart_clk; |
| 114 | struct device *dev = &serial_device.dev; | 78 | struct davinci_soc_info *soc_info = &davinci_soc_info; |
| 79 | struct device *dev = &soc_info->serial_dev->dev; | ||
| 80 | struct plat_serial8250_port *p = dev->platform_data; | ||
| 115 | 81 | ||
| 116 | /* | 82 | /* |
| 117 | * Make sure the serial ports are muxed on at this point. | 83 | * Make sure the serial ports are muxed on at this point. |
| 118 | * You have to mux them off in device drivers later on | 84 | * You have to mux them off in device drivers later on if not needed. |
| 119 | * if not needed. | ||
| 120 | */ | 85 | */ |
| 121 | for (i = 0; i < DAVINCI_MAX_NR_UARTS; i++) { | 86 | for (i = 0; i < DAVINCI_MAX_NR_UARTS; i++, p++) { |
| 122 | struct plat_serial8250_port *p = serial_platform_data + i; | 87 | if (!(info->enabled_uarts & (1 << i))) |
| 123 | |||
| 124 | if (!(info->enabled_uarts & (1 << i))) { | ||
| 125 | p->flags = 0; | ||
| 126 | continue; | 88 | continue; |
| 127 | } | ||
| 128 | |||
| 129 | if (cpu_is_davinci_dm646x()) | ||
| 130 | p->iotype = UPIO_MEM32; | ||
| 131 | |||
| 132 | if (cpu_is_davinci_dm355()) { | ||
| 133 | if (i == 2) { | ||
| 134 | p->mapbase = (unsigned long)DM355_UART2_BASE; | ||
| 135 | p->irq = IRQ_DM355_UARTINT2; | ||
| 136 | } | ||
| 137 | } | ||
| 138 | 89 | ||
| 139 | sprintf(name, "uart%d", i); | 90 | sprintf(name, "uart%d", i); |
| 140 | uart_clk = clk_get(dev, name); | 91 | uart_clk = clk_get(dev, name); |
| @@ -147,11 +98,6 @@ void __init davinci_serial_init(struct davinci_uart_config *info) | |||
| 147 | davinci_serial_reset(p); | 98 | davinci_serial_reset(p); |
| 148 | } | 99 | } |
| 149 | } | 100 | } |
| 150 | } | ||
| 151 | 101 | ||
| 152 | static int __init davinci_init(void) | 102 | return platform_device_register(soc_info->serial_dev); |
| 153 | { | ||
| 154 | return platform_device_register(&serial_device); | ||
| 155 | } | 103 | } |
| 156 | |||
| 157 | arch_initcall(davinci_init); | ||
