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serial: sirf: use dynamic method allocate uart structure 

In different platform of SiRF SoCs, there is no same uart and usp-uart
numbers, it is not convenient to use hard-coded ports array and port
lines.

here we drop the hard-coded ports table , and drop "cell-index". then
move to use alias id to get line.

for example:
	aliases {
		serial0 = &uart0;
		serial1 = &uart1;
		serial2 = &uart2;
		serial3 = &uart3;
		serial4 = &uart4;
		serial5 = &uart5;
		serial6 = &uart6;
		serial9 = &usp2;
	};

at the same, enlarge the max port number according to the chip with the most
UART.

Signed-off-by: Qipan Li <Qipan.Li@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Qipan Li 2015-04-29 06:45:08 +00:00 committed by Greg Kroah-Hartman
parent 2c40b57dc8
commit a6ffe8966a
2 changed files with 23 additions and 69 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

84
drivers/tty/serial/sirfsoc_uart.c
View File

@ -59,50 +59,7 @@ static const struct sirfsoc_baudrate_to_regv baudrate_to_regv[] = {
{9600, 1114979},
};
static struct sirfsoc_uart_port sirfsoc_uart_ports[SIRFSOC_UART_NR] = {
[0] = {
.port = {
.iotype = UPIO_MEM,
.flags = UPF_BOOT_AUTOCONF,
.line = 0,
},
},
[1] = {
.port = {
.iotype = UPIO_MEM,
.flags = UPF_BOOT_AUTOCONF,
.line = 1,
},
},
[2] = {
.port = {
.iotype = UPIO_MEM,
.flags = UPF_BOOT_AUTOCONF,
.line = 2,
},
},
[3] = {
.port = {
.iotype = UPIO_MEM,
.flags = UPF_BOOT_AUTOCONF,
.line = 3,
},
},
[4] = {
.port = {
.iotype = UPIO_MEM,
.flags = UPF_BOOT_AUTOCONF,
.line = 4,
},
},
[5] = {
.port = {
.iotype = UPIO_MEM,
.flags = UPF_BOOT_AUTOCONF,
.line = 5,
},
},
};
static struct sirfsoc_uart_port *sirf_ports[SIRFSOC_UART_NR];
static inline struct sirfsoc_uart_port *to_sirfport(struct uart_port *port)
{
@ -1187,27 +1144,29 @@ sirfsoc_uart_console_setup(struct console *co, char *options)
unsigned int bits = 8;
unsigned int parity = 'n';
unsigned int flow = 'n';
struct uart_port *port = &sirfsoc_uart_ports[co->index].port;
struct sirfsoc_uart_port *sirfport = to_sirfport(port);
struct sirfsoc_register *ureg = &sirfport->uart_reg->uart_reg;
struct sirfsoc_uart_port *sirfport;
struct sirfsoc_register *ureg;
if (co->index < 0 || co->index >= SIRFSOC_UART_NR)
return -EINVAL;
if (!port->mapbase)
sirfport = sirf_ports[co->index];
if (!sirfport)
return -ENODEV;
ureg = &sirfport->uart_reg->uart_reg;
if (!sirfport->port.mapbase)
return -ENODEV;
/* enable usp in mode1 register */
if (sirfport->uart_reg->uart_type == SIRF_USP_UART)
wr_regl(port, ureg->sirfsoc_mode1, SIRFSOC_USP_EN |
wr_regl(&sirfport->port, ureg->sirfsoc_mode1, SIRFSOC_USP_EN |
SIRFSOC_USP_ENDIAN_CTRL_LSBF);
if (options)
uart_parse_options(options, &baud, &parity, &bits, &flow);
port->cons = co;
sirfport->port.cons = co;
/* default console tx/rx transfer using io mode */
sirfport->rx_dma_chan = NULL;
sirfport->tx_dma_chan = NULL;
return uart_set_options(port, co, baud, parity, bits, flow);
return uart_set_options(&sirfport->port, co, baud, parity, bits, flow);
}
static void sirfsoc_uart_console_putchar(struct uart_port *port, int ch)
@ -1224,8 +1183,10 @@ static void sirfsoc_uart_console_putchar(struct uart_port *port, int ch)
static void sirfsoc_uart_console_write(struct console *co, const char *s,
unsigned int count)
{
struct uart_port *port = &sirfsoc_uart_ports[co->index].port;
uart_console_write(port, s, count, sirfsoc_uart_console_putchar);
struct sirfsoc_uart_port *sirfport = sirf_ports[co->index];
uart_console_write(&sirfport->port, s, count,
sirfsoc_uart_console_putchar);
}
static struct console sirfsoc_uart_console = {
@ -1284,16 +1245,15 @@ static int sirfsoc_uart_probe(struct platform_device *pdev)
const struct of_device_id *match;
match = of_match_node(sirfsoc_uart_ids, pdev->dev.of_node);
if (of_property_read_u32(pdev->dev.of_node, "cell-index", &pdev->id)) {
dev_err(&pdev->dev,
"Unable to find cell-index in uart node.\n");
ret = -EFAULT;
sirfport = devm_kzalloc(&pdev->dev, sizeof(*sirfport), GFP_KERNEL);
if (!sirfport) {
ret = -ENOMEM;
goto err;
}
if (of_device_is_compatible(pdev->dev.of_node, "sirf,prima2-usp-uart"))
pdev->id += ((struct sirfsoc_uart_register *)
match->data)->uart_param.register_uart_nr;
sirfport = &sirfsoc_uart_ports[pdev->id];
sirfport->port.line = of_alias_get_id(pdev->dev.of_node, "serial");
sirf_ports[sirfport->port.line] = sirfport;
sirfport->port.iotype = UPIO_MEM;
sirfport->port.flags = UPF_BOOT_AUTOCONF;
port = &sirfport->port;
port->dev = &pdev->dev;
port->private_data = sirfport;

8
drivers/tty/serial/sirfsoc_uart.h
View File

@ -9,8 +9,6 @@
struct sirfsoc_uart_param {
const char *uart_name;
const char *port_name;
u32 uart_nr;
u32 register_uart_nr;
};
struct sirfsoc_register {
@ -183,8 +181,6 @@ struct sirfsoc_uart_register sirfsoc_usp = {
.uart_param = {
.uart_name = "ttySiRF",
.port_name = "sirfsoc-uart",
.uart_nr = 2,
.register_uart_nr = 3,
},
};
@ -255,8 +251,6 @@ struct sirfsoc_uart_register sirfsoc_uart = {
.uart_param = {
.uart_name = "ttySiRF",
.port_name = "sirfsoc_uart",
.uart_nr = 3,
.register_uart_nr = 0,
},
};
/* uart io ctrl */
@ -365,7 +359,7 @@ struct sirfsoc_uart_register sirfsoc_uart = {
#define SIRFSOC_UART_MINOR 0
#define SIRFUART_PORT_NAME "sirfsoc-uart"
#define SIRFUART_MAP_SIZE 0x200
#define SIRFSOC_UART_NR 6
#define SIRFSOC_UART_NR 11
#define SIRFSOC_PORT_TYPE 0xa5
/* Uart Common Use Macro*/