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authorAlexander Clouter <alex@digriz.org.uk>2010-01-31 19:39:57 +0000
committerRalf Baechle <ralf@linux-mips.org>2010-02-27 12:53:22 +0100
commit7084338eb8eb0cc021ba86c340157bad397f3f0b (patch)
tree86af24efb71a66e333fffe2daab1477dd3af5925 /arch/mips
parent632b629c0c4b0f8caaf7f2b448911d03859fda59 (diff)
downloadlinux-2.6.34-ux500-7084338eb8eb0cc021ba86c340157bad397f3f0b.tar.gz
MIPS: AR7: Make ar7_register_devices much more durable
[Ralf: Fixed up the rejects and changed all the new printk(KERN_...); to pr_xxx() as suggested by Wu.] Signed-off-by: Alexander Clouter <alex@digriz.org.uk> To: linux-mips@linux-mips.org Patchwork: http://patchwork.linux-mips.org/patch/920/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips')
-rw-r--r--arch/mips/ar7/platform.c147
1 files changed, 81 insertions, 66 deletions
diff --git a/arch/mips/ar7/platform.c b/arch/mips/ar7/platform.c
index 65facecb3ff..246df7aca2e 100644
--- a/arch/mips/ar7/platform.c
+++ b/arch/mips/ar7/platform.c
@@ -529,115 +529,130 @@ static struct platform_device ar7_wdt = {
/*****************************************************************************
* Init
****************************************************************************/
-static int __init ar7_register_devices(void)
+static int __init ar7_register_uarts(void)
{
- u16 chip_id;
- int res;
- u32 *bootcr, val;
#ifdef CONFIG_SERIAL_8250
- static struct uart_port uart_port[2] __initdata;
+ static struct uart_port uart_port __initdata;
struct clk *bus_clk;
+ int res;
- memset(uart_port, 0, sizeof(struct uart_port) * 2);
+ memset(&uart_port, 0, sizeof(struct uart_port));
bus_clk = clk_get(NULL, "bus");
if (IS_ERR(bus_clk))
panic("unable to get bus clk\n");
- uart_port[0].type = PORT_16550A;
- uart_port[0].line = 0;
- uart_port[0].irq = AR7_IRQ_UART0;
- uart_port[0].uartclk = clk_get_rate(bus_clk) / 2;
- uart_port[0].iotype = UPIO_MEM32;
- uart_port[0].mapbase = AR7_REGS_UART0;
- uart_port[0].membase = ioremap(uart_port[0].mapbase, 256);
- uart_port[0].regshift = 2;
- res = early_serial_setup(&uart_port[0]);
+ uart_port.type = PORT_16550A;
+ uart_port.uartclk = clk_get_rate(bus_clk) / 2;
+ uart_port.iotype = UPIO_MEM32;
+ uart_port.regshift = 2;
+
+ uart_port.line = 0;
+ uart_port.irq = AR7_IRQ_UART0;
+ uart_port.mapbase = AR7_REGS_UART0;
+ uart_port.membase = ioremap(uart_port.mapbase, 256);
+
+ res = early_serial_setup(&uart_port);
if (res)
return res;
/* Only TNETD73xx have a second serial port */
if (ar7_has_second_uart()) {
- uart_port[1].type = PORT_16550A;
- uart_port[1].line = 1;
- uart_port[1].irq = AR7_IRQ_UART1;
- uart_port[1].uartclk = clk_get_rate(bus_clk) / 2;
- uart_port[1].iotype = UPIO_MEM32;
- uart_port[1].mapbase = UR8_REGS_UART1;
- uart_port[1].membase = ioremap(uart_port[1].mapbase, 256);
- uart_port[1].regshift = 2;
- res = early_serial_setup(&uart_port[1]);
+ uart_port.line = 1;
+ uart_port.irq = AR7_IRQ_UART1;
+ uart_port.mapbase = UR8_REGS_UART1;
+ uart_port.membase = ioremap(uart_port.mapbase, 256);
+
+ res = early_serial_setup(&uart_port);
if (res)
return res;
}
-#endif /* CONFIG_SERIAL_8250 */
+#endif
+
+ return 0;
+}
+
+static int __init ar7_register_devices(void)
+{
+ void __iomem *bootcr;
+ u32 val;
+ u16 chip_id;
+ int res;
+
+ res = ar7_register_uarts();
+ if (res)
+ pr_err("unable to setup uart(s): %d\n", res);
+
res = platform_device_register(&physmap_flash);
if (res)
- return res;
+ pr_warning("unable to register physmap-flash: %d\n", res);
ar7_device_disable(vlynq_low_data.reset_bit);
res = platform_device_register(&vlynq_low);
if (res)
- return res;
+ pr_warning("unable to register vlynq-low: %d\n", res);
if (ar7_has_high_vlynq()) {
ar7_device_disable(vlynq_high_data.reset_bit);
res = platform_device_register(&vlynq_high);
if (res)
- return res;
+ pr_warning("unable to register vlynq-high: %d\n", res);
}
if (ar7_has_high_cpmac()) {
- res = fixed_phy_add(PHY_POLL, cpmac_high.id, &fixed_phy_status);
- if (res && res != -ENODEV)
- return res;
- cpmac_get_mac(1, cpmac_high_data.dev_addr);
- res = platform_device_register(&cpmac_high);
- if (res)
- return res;
- } else {
+ if (!res) {
+ cpmac_get_mac(1, cpmac_high_data.dev_addr);
+
+ res = platform_device_register(&cpmac_high);
+ if (res)
+ pr_warning("unable to register cpmac-high: %d\n", res);
+ } else
+ pr_warning("unable to add cpmac-high phy: %d\n", res);
+ } else
cpmac_low_data.phy_mask = 0xffffffff;
- }
res = fixed_phy_add(PHY_POLL, cpmac_low.id, &fixed_phy_status);
- if (res && res != -ENODEV)
- return res;
-
- cpmac_get_mac(0, cpmac_low_data.dev_addr);
- res = platform_device_register(&cpmac_low);
- if (res)
- return res;
+ if (!res) {
+ cpmac_get_mac(0, cpmac_low_data.dev_addr);
+ res = platform_device_register(&cpmac_low);
+ if (res)
+ pr_warning("unable to register cpmac-low: %d\n", res);
+ } else
+ pr_warning("unable to add cpmac-low phy: %d\n", res);
detect_leds();
res = platform_device_register(&ar7_gpio_leds);
if (res)
- return res;
+ pr_warning("unable to register leds: %d\n", res);
res = platform_device_register(&ar7_udc);
-
- chip_id = ar7_chip_id();
- switch (chip_id) {
- case AR7_CHIP_7100:
- case AR7_CHIP_7200:
- ar7_wdt_res.start = AR7_REGS_WDT;
- break;
- case AR7_CHIP_7300:
- ar7_wdt_res.start = UR8_REGS_WDT;
- break;
- default:
- break;
- }
-
- ar7_wdt_res.end = ar7_wdt_res.start + 0x20;
-
- bootcr = (u32 *)ioremap_nocache(AR7_REGS_DCL, 4);
- val = *bootcr;
- iounmap(bootcr);
+ if (res)
+ pr_warning("unable to register usb slave: %d\n", res);
/* Register watchdog only if enabled in hardware */
- if (val & AR7_WDT_HW_ENA)
+ bootcr = ioremap_nocache(AR7_REGS_DCL, 4);
+ val = readl(bootcr);
+ iounmap(bootcr);
+ if (val & AR7_WDT_HW_ENA) {
+ chip_id = ar7_chip_id();
+ switch (chip_id) {
+ case AR7_CHIP_7100:
+ case AR7_CHIP_7200:
+ ar7_wdt_res.start = AR7_REGS_WDT;
+ break;
+ case AR7_CHIP_7300:
+ ar7_wdt_res.start = UR8_REGS_WDT;
+ break;
+ default:
+ break;
+ }
+
+ ar7_wdt_res.end = ar7_wdt_res.start + 0x20;
res = platform_device_register(&ar7_wdt);
+ if (res)
+ pr_warning("unable to register watchdog: %d\n", res);
+ }
- return res;
+ return 0;
}
arch_initcall(ar7_register_devices);