diff options
Diffstat (limited to 'arch/arm/mach-omap2/serial.c')
-rw-r--r-- | arch/arm/mach-omap2/serial.c | 118 |
1 files changed, 0 insertions, 118 deletions
diff --git a/arch/arm/mach-omap2/serial.c b/arch/arm/mach-omap2/serial.c index 2456cfdad78..64b0d11ddc4 100644 --- a/arch/arm/mach-omap2/serial.c +++ b/arch/arm/mach-omap2/serial.c @@ -41,8 +41,6 @@ #include "control.h" #include "mux.h" -#define UART_OMAP_WER 0x17 /* Wake-up enable register */ - #define UART_ERRATA_i202_MDR1_ACCESS (0x1 << 1) /* @@ -66,60 +64,16 @@ struct omap_uart_state { int clocked; - int regshift; - void __iomem *membase; - resource_size_t mapbase; - struct list_head node; struct omap_hwmod *oh; struct platform_device *pdev; u32 errata; -#if defined(CONFIG_ARCH_OMAP3) && defined(CONFIG_PM) - int context_valid; - - /* Registers to be saved/restored for OFF-mode */ - u16 dll; - u16 dlh; - u16 ier; - u16 sysc; - u16 scr; - u16 wer; - u16 mcr; -#endif }; static LIST_HEAD(uart_list); static u8 num_uarts; -static inline unsigned int __serial_read_reg(struct uart_port *up, - int offset) -{ - offset <<= up->regshift; - return (unsigned int)__raw_readb(up->membase + offset); -} - -static inline unsigned int serial_read_reg(struct omap_uart_state *uart, - int offset) -{ - offset <<= uart->regshift; - return (unsigned int)__raw_readb(uart->membase + offset); -} - -static inline void __serial_write_reg(struct uart_port *up, int offset, - int value) -{ - offset <<= up->regshift; - __raw_writeb(value, up->membase + offset); -} - -static inline void serial_write_reg(struct omap_uart_state *uart, int offset, - int value) -{ - offset <<= uart->regshift; - __raw_writeb(value, uart->membase + offset); -} - /* * Internal UARTs need to be initialized for the 8250 autoconfig to work * properly. Note that the TX watermark initialization may not be needed @@ -170,75 +124,6 @@ static void omap_uart_mdr1_errataset(struct omap_uart_state *uart, u8 mdr1_val, } } -static void omap_uart_save_context(struct omap_uart_state *uart) -{ - u16 lcr = 0; - - if (!enable_off_mode) - return; - - lcr = serial_read_reg(uart, UART_LCR); - serial_write_reg(uart, UART_LCR, UART_LCR_CONF_MODE_B); - uart->dll = serial_read_reg(uart, UART_DLL); - uart->dlh = serial_read_reg(uart, UART_DLM); - serial_write_reg(uart, UART_LCR, lcr); - uart->ier = serial_read_reg(uart, UART_IER); - uart->sysc = serial_read_reg(uart, UART_OMAP_SYSC); - uart->scr = serial_read_reg(uart, UART_OMAP_SCR); - uart->wer = serial_read_reg(uart, UART_OMAP_WER); - serial_write_reg(uart, UART_LCR, UART_LCR_CONF_MODE_A); - uart->mcr = serial_read_reg(uart, UART_MCR); - serial_write_reg(uart, UART_LCR, lcr); - - uart->context_valid = 1; -} - -static void omap_uart_restore_context(struct omap_uart_state *uart) -{ - u16 efr = 0; - - if (!enable_off_mode) - return; - - if (!uart->context_valid) - return; - - uart->context_valid = 0; - - if (uart->errata & UART_ERRATA_i202_MDR1_ACCESS) - omap_uart_mdr1_errataset(uart, UART_OMAP_MDR1_DISABLE, 0xA0); - else - serial_write_reg(uart, UART_OMAP_MDR1, UART_OMAP_MDR1_DISABLE); - - serial_write_reg(uart, UART_LCR, UART_LCR_CONF_MODE_B); - efr = serial_read_reg(uart, UART_EFR); - serial_write_reg(uart, UART_EFR, UART_EFR_ECB); - serial_write_reg(uart, UART_LCR, 0x0); /* Operational mode */ - serial_write_reg(uart, UART_IER, 0x0); - serial_write_reg(uart, UART_LCR, UART_LCR_CONF_MODE_B); - serial_write_reg(uart, UART_DLL, uart->dll); - serial_write_reg(uart, UART_DLM, uart->dlh); - serial_write_reg(uart, UART_LCR, 0x0); /* Operational mode */ - serial_write_reg(uart, UART_IER, uart->ier); - serial_write_reg(uart, UART_LCR, UART_LCR_CONF_MODE_A); - serial_write_reg(uart, UART_MCR, uart->mcr); - serial_write_reg(uart, UART_LCR, UART_LCR_CONF_MODE_B); - serial_write_reg(uart, UART_EFR, efr); - serial_write_reg(uart, UART_LCR, UART_LCR_WLEN8); - serial_write_reg(uart, UART_OMAP_SCR, uart->scr); - serial_write_reg(uart, UART_OMAP_WER, uart->wer); - serial_write_reg(uart, UART_OMAP_SYSC, uart->sysc); - - if (uart->errata & UART_ERRATA_i202_MDR1_ACCESS) - omap_uart_mdr1_errataset(uart, UART_OMAP_MDR1_16X_MODE, 0xA1); - else - /* UART 16x mode */ - serial_write_reg(uart, UART_OMAP_MDR1, - UART_OMAP_MDR1_16X_MODE); -} -#else -static inline void omap_uart_save_context(struct omap_uart_state *uart) {} -static inline void omap_uart_restore_context(struct omap_uart_state *uart) {} #endif /* CONFIG_PM && CONFIG_ARCH_OMAP3 */ static inline void omap_uart_enable_clocks(struct omap_uart_state *uart) @@ -621,9 +506,6 @@ void __init omap_serial_init_port(struct omap_board_data *bdata) omap_device_disable_idle_on_suspend(pdev); oh->mux = omap_hwmod_mux_init(bdata->pads, bdata->pads_cnt); - uart->regshift = 2; - uart->mapbase = oh->slaves[0]->addr->pa_start; - uart->membase = omap_hwmod_get_mpu_rt_va(oh); uart->pdev = pdev; oh->dev_attr = uart; |