diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c index 028e37ad8d79..8ed91e1da22b 100644 --- a/drivers/tty/serial/amba-pl011.c +++ b/drivers/tty/serial/amba-pl011.c @@ -240,6 +240,38 @@ static struct vendor_data vendor_nvidia = { .get_fifosize = get_fifosize_nvidia, }; +static const u16 pl011_zte_offsets[REG_ARRAY_SIZE] = { + [REG_DR] = ZX_UART011_DR, + [REG_FR] = ZX_UART011_FR, + [REG_LCRH_RX] = ZX_UART011_LCRH, + [REG_LCRH_TX] = ZX_UART011_LCRH, + [REG_IBRD] = ZX_UART011_IBRD, + [REG_FBRD] = ZX_UART011_FBRD, + [REG_CR] = ZX_UART011_CR, + [REG_IFLS] = ZX_UART011_IFLS, + [REG_IMSC] = ZX_UART011_IMSC, + [REG_RIS] = ZX_UART011_RIS, + [REG_MIS] = ZX_UART011_MIS, + [REG_ICR] = ZX_UART011_ICR, + [REG_DMACR] = ZX_UART011_DMACR, +}; + +static unsigned int get_fifosize_zte(struct amba_device *dev) +{ + return 16; +} + +static struct vendor_data vendor_zte = { + .reg_offset = pl011_zte_offsets, + .access_32b = true, + .ifls = UART011_IFLS_RX4_8 | UART011_IFLS_TX4_8, + .fr_busy = ZX_UART01x_FR_BUSY, + .fr_dsr = ZX_UART01x_FR_DSR, + .fr_cts = ZX_UART01x_FR_CTS, + .fr_ri = ZX_UART011_FR_RI, + .get_fifosize = get_fifosize_zte, +}; + /* Deals with DMA transactions */ struct pl011_dmabuf { @@ -3180,6 +3212,16 @@ static const struct amba_id pl011_ids[] = { .mask = 0x000fffff, .data = &vendor_nvidia, }, + { + /* This is an invented ID. The actual hardware that contains + * these ZTE UARTs (zx29 boards) has no AMBA PIDs stored. ZTE + * JEDEC ID (ignoring banks) and the "011" part number as used + * by ARM. + */ + .id = 0x0008c011, + .mask = 0x000fffff, + .data = &vendor_zte, + }, { 0, 0 }, };