diff options
Diffstat (limited to 'src/cpu/ti/am335x')
| -rw-r--r-- | src/cpu/ti/am335x/uart.c | 52 |
1 files changed, 26 insertions, 26 deletions
diff --git a/src/cpu/ti/am335x/uart.c b/src/cpu/ti/am335x/uart.c index a886e504fa..ef8e08cfb8 100644 --- a/src/cpu/ti/am335x/uart.c +++ b/src/cpu/ti/am335x/uart.c @@ -42,88 +42,88 @@ static void am335x_uart_init(struct am335x_uart *uart, uint16_t div) uint16_t lcr_orig, efr_orig, mcr_orig; /* reset the UART */ - write16(uart->sysc | SYSC_SOFTRESET, &uart->sysc); + writew(uart->sysc | SYSC_SOFTRESET, &uart->sysc); while (!(read16(&uart->syss) & SYSS_RESETDONE)) ; /* 1. switch to register config mode B */ lcr_orig = read16(&uart->lcr); - write16(0xbf, &uart->lcr); + writew(0xbf, &uart->lcr); /* * 2. Set EFR ENHANCED_EN bit. To access this bit, registers must * be in TCR_TLR submode, meaning EFR[4] = 1 and MCR[6] = 1. */ efr_orig = read16(&uart->efr); - write16(efr_orig | EFR_ENHANCED_EN, &uart->efr); + writew(efr_orig | EFR_ENHANCED_EN, &uart->efr); /* 3. Switch to register config mode A */ - write16(0x80, &uart->lcr); + writew(0x80, &uart->lcr); /* 4. Enable register submode TCR_TLR to access the UARTi.UART_TLR */ mcr_orig = read16(&uart->mcr); - write16(mcr_orig | MCR_TCR_TLR, &uart->mcr); + writew(mcr_orig | MCR_TCR_TLR, &uart->mcr); /* 5. Enable the FIFO. For now we'll ignore FIFO triggers and DMA */ - write16(FCR_FIFO_EN, &uart->fcr); + writew(FCR_FIFO_EN, &uart->fcr); /* 6. Switch to configuration mode B */ - write16(0xbf, &uart->lcr); + writew(0xbf, &uart->lcr); /* Skip steps 7 and 8 (setting up FIFO triggers for DMA) */ /* 9. Restore original EFR value */ - write16(efr_orig, &uart->efr); + writew(efr_orig, &uart->efr); /* 10. Switch to config mode A */ - write16(0x80, &uart->lcr); + writew(0x80, &uart->lcr); /* 11. Restore original MCR value */ - write16(mcr_orig, &uart->mcr); + writew(mcr_orig, &uart->mcr); /* 12. Restore original LCR value */ - write16(lcr_orig, &uart->lcr); + writew(lcr_orig, &uart->lcr); /* Protocol, baud rate and interrupt settings */ /* 1. Disable UART access to DLL and DLH registers */ - write16(read16(&uart->mdr1) | 0x7, &uart->mdr1); + writew(read16(&uart->mdr1) | 0x7, &uart->mdr1); /* 2. Switch to config mode B */ - write16(0xbf, &uart->lcr); + writew(0xbf, &uart->lcr); /* 3. Enable access to IER[7:4] */ - write16(efr_orig | EFR_ENHANCED_EN, &uart->efr); + writew(efr_orig | EFR_ENHANCED_EN, &uart->efr); /* 4. Switch to operational mode */ - write16(0x0, &uart->lcr); + writew(0x0, &uart->lcr); /* 5. Clear IER */ - write16(0x0, &uart->ier); + writew(0x0, &uart->ier); /* 6. Switch to config mode B */ - write16(0xbf, &uart->lcr); + writew(0xbf, &uart->lcr); /* 7. Set dll and dlh to the desired values (table 19-25) */ - write16((div >> 8), &uart->dlh); - write16((div & 0xff), &uart->dll); + writew((div >> 8), &uart->dlh); + writew((div & 0xff), &uart->dll); /* 8. Switch to operational mode to access ier */ - write16(0x0, &uart->lcr); + writew(0x0, &uart->lcr); /* 9. Clear ier to disable all interrupts */ - write16(0x0, &uart->ier); + writew(0x0, &uart->ier); /* 10. Switch to config mode B */ - write16(0xbf, &uart->lcr); + writew(0xbf, &uart->lcr); /* 11. Restore efr */ - write16(efr_orig, &uart->efr); + writew(efr_orig, &uart->efr); /* 12. Set protocol formatting 8n1 (8 bit data, no parity, 1 stop bit) */ - write16(0x3, &uart->lcr); + writew(0x3, &uart->lcr); /* 13. Load the new UART mode */ - write16(0x0, &uart->mdr1); + writew(0x0, &uart->mdr1); } /* @@ -145,7 +145,7 @@ static void am335x_uart_tx_byte(struct am335x_uart *uart, unsigned char data) { while (!(read16(&uart->lsr) & LSR_TXFIFOE)); - return write8(data, &uart->thr); + return writeb(data, &uart->thr); } unsigned int uart_platform_refclk(void) |