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authorLinus Torvalds <torvalds@linux-foundation.org>2014-12-12 04:56:37 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2014-12-12 04:56:37 +0300
commitc0222ac086669a631814bbf857f8c8023452a4d7 (patch)
treebb1d9908031fcf69016eeefa7b35a4f68f414333 /arch/mips/loongson/common/serial.c
parent140cd7fb04a4a2bc09a30980bc8104cc89e09330 (diff)
parente2965cd0003f222bd49f67907c2bc6ed691c6d20 (diff)
downloadlinux-c0222ac086669a631814bbf857f8c8023452a4d7.tar.xz
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS updates from Ralf Baechle: "This is an unusually large pull request for MIPS - in parts because lots of patches missed the 3.18 deadline but primarily because some folks opened the flood gates. - Retire the MIPS-specific phys_t with the generic phys_addr_t. - Improvments for the backtrace code used by oprofile. - Better backtraces on SMP systems. - Cleanups for the Octeon platform code. - Cleanups and fixes for the Loongson platform code. - Cleanups and fixes to the firmware library. - Switch ATH79 platform to use the firmware library. - Grand overhault to the SEAD3 and Malta interrupt code. - Move the GIC interrupt code to drivers/irqchip - Lots of GIC cleanups and updates to the GIC code to use modern IRQ infrastructures and features of the kernel. - OF documentation updates for the GIC bindings - Move GIC clocksource driver to drivers/clocksource - Merge GIC clocksource driver with clockevent driver. - Further updates to bring the GIC clocksource driver up to date. - R3000 TLB code cleanups - Improvments to the Loongson 3 platform code. - Convert pr_warning to pr_warn. - Merge a bunch of small lantiq and ralink fixes that have been staged/lingering inside the openwrt tree for a while. - Update archhelp for IP22/IP32 - Fix a number of issues for Loongson 1B. - New clocksource and clockevent driver for Loongson 1B. - Further work on clk handling for Loongson 1B. - Platform work for Broadcom BMIPS. - Error handling cleanups for TurboChannel. - Fixes and optimization to the microMIPS support. - Option to disable the FTLB. - Dump more relevant information on machine check exception - Change binfmt to allow arch to examine PT_*PROC headers - Support for new style FPU register model in O32 - VDSO randomization. - BCM47xx cleanups - BCM47xx reimplement the way the kernel accesses NVRAM information. - Random cleanups - Add support for ATH25 platforms - Remove pointless locking code in some PCI platforms. - Some improvments to EVA support - Minor Alchemy cleanup" * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (185 commits) MIPS: Add MFHC0 and MTHC0 instructions to uasm. MIPS: Cosmetic cleanups of page table headers. MIPS: Add CP0 macros for extended EntryLo registers MIPS: Remove now unused definition of phys_t. MIPS: Replace use of phys_t with phys_addr_t. MIPS: Replace MIPS-specific 64BIT_PHYS_ADDR with generic PHYS_ADDR_T_64BIT PCMCIA: Alchemy Don't select 64BIT_PHYS_ADDR in Kconfig. MIPS: lib: memset: Clean up some MIPS{EL,EB} ifdefery MIPS: iomap: Use __mem_{read,write}{b,w,l} for MMIO MIPS: <asm/types.h> fix indentation. MAINTAINERS: Add entry for BMIPS multiplatform kernel MIPS: Enable VDSO randomization MIPS: Remove a temporary hack for debugging cache flushes in SMTC configuration MIPS: Remove declaration of obsolete arch_init_clk_ops() MIPS: atomic.h: Reformat to fit in 79 columns MIPS: Apply `.insn' to fixup labels throughout MIPS: Fix microMIPS LL/SC immediate offsets MIPS: Kconfig: Only allow 32-bit microMIPS builds MIPS: signal.c: Fix an invalid cast in ISA mode bit handling MIPS: mm: Only build one microassembler that is suitable ...
Diffstat (limited to 'arch/mips/loongson/common/serial.c')
-rw-r--r--arch/mips/loongson/common/serial.c66
1 files changed, 49 insertions, 17 deletions
diff --git a/arch/mips/loongson/common/serial.c b/arch/mips/loongson/common/serial.c
index bd2b7095b6dc..c23fa1373729 100644
--- a/arch/mips/loongson/common/serial.c
+++ b/arch/mips/loongson/common/serial.c
@@ -38,20 +38,17 @@
.regshift = 0, \
}
-static struct plat_serial8250_port uart8250_data[][2] = {
- [MACH_LOONGSON_UNKNOWN] {},
- [MACH_LEMOTE_FL2E] {PORT(4, 1843200), {} },
- [MACH_LEMOTE_FL2F] {PORT(3, 1843200), {} },
- [MACH_LEMOTE_ML2F7] {PORT_M(3, 3686400), {} },
- [MACH_LEMOTE_YL2F89] {PORT_M(3, 3686400), {} },
- [MACH_DEXXON_GDIUM2F10] {PORT_M(3, 3686400), {} },
- [MACH_LEMOTE_NAS] {PORT_M(3, 3686400), {} },
- [MACH_LEMOTE_LL2F] {PORT(3, 1843200), {} },
- [MACH_LEMOTE_A1004] {PORT_M(2, 33177600), {} },
- [MACH_LEMOTE_A1101] {PORT_M(2, 25000000), {} },
- [MACH_LEMOTE_A1201] {PORT_M(2, 25000000), {} },
- [MACH_LEMOTE_A1205] {PORT_M(2, 25000000), {} },
- [MACH_LOONGSON_END] {},
+static struct plat_serial8250_port uart8250_data[][MAX_UARTS + 1] = {
+ [MACH_LOONGSON_UNKNOWN] = {},
+ [MACH_LEMOTE_FL2E] = {PORT(4, 1843200), {} },
+ [MACH_LEMOTE_FL2F] = {PORT(3, 1843200), {} },
+ [MACH_LEMOTE_ML2F7] = {PORT_M(3, 3686400), {} },
+ [MACH_LEMOTE_YL2F89] = {PORT_M(3, 3686400), {} },
+ [MACH_DEXXON_GDIUM2F10] = {PORT_M(3, 3686400), {} },
+ [MACH_LEMOTE_NAS] = {PORT_M(3, 3686400), {} },
+ [MACH_LEMOTE_LL2F] = {PORT(3, 1843200), {} },
+ [MACH_LOONGSON_GENERIC] = {PORT_M(2, 25000000), {} },
+ [MACH_LOONGSON_END] = {},
};
static struct platform_device uart8250_device = {
@@ -61,17 +58,52 @@ static struct platform_device uart8250_device = {
static int __init serial_init(void)
{
+ int i;
unsigned char iotype;
iotype = uart8250_data[mips_machtype][0].iotype;
- if (UPIO_MEM == iotype)
+ if (UPIO_MEM == iotype) {
+ uart8250_data[mips_machtype][0].mapbase =
+ loongson_uart_base[0];
uart8250_data[mips_machtype][0].membase =
- (void __iomem *)_loongson_uart_base;
+ (void __iomem *)_loongson_uart_base[0];
+ }
else if (UPIO_PORT == iotype)
uart8250_data[mips_machtype][0].iobase =
- loongson_uart_base - LOONGSON_PCIIO_BASE;
+ loongson_uart_base[0] - LOONGSON_PCIIO_BASE;
+ if (loongson_sysconf.uarts[0].uartclk)
+ uart8250_data[mips_machtype][0].uartclk =
+ loongson_sysconf.uarts[0].uartclk;
+
+ for (i = 1; i < loongson_sysconf.nr_uarts; i++) {
+ iotype = loongson_sysconf.uarts[i].iotype;
+ uart8250_data[mips_machtype][i].iotype = iotype;
+ loongson_uart_base[i] = loongson_sysconf.uarts[i].uart_base;
+
+ if (UPIO_MEM == iotype) {
+ uart8250_data[mips_machtype][i].irq =
+ MIPS_CPU_IRQ_BASE + loongson_sysconf.uarts[i].int_offset;
+ uart8250_data[mips_machtype][i].mapbase =
+ loongson_uart_base[i];
+ uart8250_data[mips_machtype][i].membase =
+ ioremap_nocache(loongson_uart_base[i], 8);
+ } else if (UPIO_PORT == iotype) {
+ uart8250_data[mips_machtype][i].irq =
+ loongson_sysconf.uarts[i].int_offset;
+ uart8250_data[mips_machtype][i].iobase =
+ loongson_uart_base[i] - LOONGSON_PCIIO_BASE;
+ }
+
+ uart8250_data[mips_machtype][i].uartclk =
+ loongson_sysconf.uarts[i].uartclk;
+ uart8250_data[mips_machtype][i].flags =
+ UPF_BOOT_AUTOCONF | UPF_SKIP_TEST;
+ }
+
+ memset(&uart8250_data[mips_machtype][loongson_sysconf.nr_uarts],
+ 0, sizeof(struct plat_serial8250_port));
uart8250_device.dev.platform_data = uart8250_data[mips_machtype];
return platform_device_register(&uart8250_device);