diff options
Diffstat (limited to 'target/linux/ramips/patches-2.6.30')
5 files changed, 266 insertions, 0 deletions
diff --git a/target/linux/ramips/patches-2.6.30/001-mips-add-cp0-compare-irq-function.patch b/target/linux/ramips/patches-2.6.30/001-mips-add-cp0-compare-irq-function.patch new file mode 100644 index 000000000..adb8044af --- /dev/null +++ b/target/linux/ramips/patches-2.6.30/001-mips-add-cp0-compare-irq-function.patch @@ -0,0 +1,29 @@ +--- a/arch/mips/kernel/traps.c ++++ b/arch/mips/kernel/traps.c +@@ -48,6 +48,7 @@ + #include <asm/types.h> + #include <asm/stacktrace.h> + #include <asm/irq.h> ++#include <asm/time.h> + + extern void check_wait(void); + extern asmlinkage void r4k_wait(void); +@@ -1542,6 +1543,8 @@ void __cpuinit per_cpu_trap_init(void) + */ + if (cpu_has_mips_r2) { + cp0_compare_irq = (read_c0_intctl() >> 29) & 7; ++ if (get_c0_compare_irq) ++ cp0_compare_irq = get_c0_compare_irq(); + cp0_perfcount_irq = (read_c0_intctl() >> 26) & 7; + if (cp0_perfcount_irq == cp0_compare_irq) + cp0_perfcount_irq = -1; +--- a/arch/mips/include/asm/time.h ++++ b/arch/mips/include/asm/time.h +@@ -52,6 +52,7 @@ extern int (*perf_irq)(void); + */ + #ifdef CONFIG_CEVT_R4K_LIB + extern unsigned int __weak get_c0_compare_int(void); ++extern unsigned int __weak get_c0_compare_irq(void); + extern int r4k_clockevent_init(void); + #endif + diff --git a/target/linux/ramips/patches-2.6.30/002-mips-clocksource-init-war.patch b/target/linux/ramips/patches-2.6.30/002-mips-clocksource-init-war.patch new file mode 100644 index 000000000..03a66ff13 --- /dev/null +++ b/target/linux/ramips/patches-2.6.30/002-mips-clocksource-init-war.patch @@ -0,0 +1,56 @@ +--- a/arch/mips/kernel/cevt-r4k.c ++++ b/arch/mips/kernel/cevt-r4k.c +@@ -15,6 +15,22 @@ + #include <asm/cevt-r4k.h> + + /* ++ * Compare interrupt can be routed and latched outside the core, ++ * so a single execution hazard barrier may not be enough to give ++ * it time to clear as seen in the Cause register. 4 time the ++ * pipeline depth seems reasonably conservative, and empirically ++ * works better in configurations with high CPU/bus clock ratios. ++ */ ++ ++#define compare_change_hazard() \ ++ do { \ ++ irq_disable_hazard(); \ ++ irq_disable_hazard(); \ ++ irq_disable_hazard(); \ ++ irq_disable_hazard(); \ ++ } while (0) ++ ++/* + * The SMTC Kernel for the 34K, 1004K, et. al. replaces several + * of these routines with SMTC-specific variants. + */ +@@ -30,6 +46,7 @@ static int mips_next_event(unsigned long + cnt = read_c0_count(); + cnt += delta; + write_c0_compare(cnt); ++ compare_change_hazard(); + res = ((int)(read_c0_count() - cnt) > 0) ? -ETIME : 0; + return res; + } +@@ -99,22 +116,6 @@ static int c0_compare_int_pending(void) + return (read_c0_cause() >> cp0_compare_irq) & 0x100; + } + +-/* +- * Compare interrupt can be routed and latched outside the core, +- * so a single execution hazard barrier may not be enough to give +- * it time to clear as seen in the Cause register. 4 time the +- * pipeline depth seems reasonably conservative, and empirically +- * works better in configurations with high CPU/bus clock ratios. +- */ +- +-#define compare_change_hazard() \ +- do { \ +- irq_disable_hazard(); \ +- irq_disable_hazard(); \ +- irq_disable_hazard(); \ +- irq_disable_hazard(); \ +- } while (0) +- + int c0_compare_int_usable(void) + { + unsigned int delta; diff --git a/target/linux/ramips/patches-2.6.30/010-mtd_fix_cfi_cmdset_0002_erase_status_check.patch b/target/linux/ramips/patches-2.6.30/010-mtd_fix_cfi_cmdset_0002_erase_status_check.patch new file mode 100644 index 000000000..3f25b61dd --- /dev/null +++ b/target/linux/ramips/patches-2.6.30/010-mtd_fix_cfi_cmdset_0002_erase_status_check.patch @@ -0,0 +1,20 @@ +--- a/drivers/mtd/chips/cfi_cmdset_0002.c ++++ b/drivers/mtd/chips/cfi_cmdset_0002.c +@@ -1579,7 +1579,7 @@ static int __xipram do_erase_chip(struct + chip->erase_suspended = 0; + } + +- if (chip_ready(map, adr)) ++ if (chip_good(map, adr, map_word_ff(map))) + break; + + if (time_after(jiffies, timeo)) { +@@ -1667,7 +1667,7 @@ static int __xipram do_erase_oneblock(st + chip->erase_suspended = 0; + } + +- if (chip_ready(map, adr)) { ++ if (chip_good(map, adr, map_word_ff(map))) { + xip_enable(map, chip, adr); + break; + } diff --git a/target/linux/ramips/patches-2.6.30/100-mips-ralink-core.patch b/target/linux/ramips/patches-2.6.30/100-mips-ralink-core.patch new file mode 100644 index 000000000..71d11c47a --- /dev/null +++ b/target/linux/ramips/patches-2.6.30/100-mips-ralink-core.patch @@ -0,0 +1,43 @@ +--- a/arch/mips/Makefile ++++ b/arch/mips/Makefile +@@ -603,6 +603,20 @@ else + load-$(CONFIG_CPU_CAVIUM_OCTEON) += 0xffffffff81100000 + endif + ++# ++# Ralink RT288x ++# ++core-$(CONFIG_RALINK_RT288X) += arch/mips/ralink/rt288x/ ++cflags-$(CONFIG_RALINK_RT288X) += -I$(srctree)/arch/mips/include/asm/mach-ralink ++load-$(CONFIG_RALINK_RT288X) += 0xffffffff88000000 ++ ++# ++# Ralink RT305x ++# ++core-$(CONFIG_RALINK_RT305X) += arch/mips/ralink/rt305x/ ++cflags-$(CONFIG_RALINK_RT305X) += -I$(srctree)/arch/mips/include/asm/mach-ralink ++load-$(CONFIG_RALINK_RT305X) += 0xffffffff80000000 ++ + # temporary until string.h is fixed + cflags-y += -ffreestanding + +--- a/arch/mips/Kconfig ++++ b/arch/mips/Kconfig +@@ -22,6 +22,9 @@ choice + config MACH_ALCHEMY + bool "Alchemy processor based machines" + ++config MIPS_RALINK ++ bool "Ralink MIPS SoC based boards" ++ + config BASLER_EXCITE + bool "Basler eXcite smart camera" + select CEVT_R4K +@@ -638,6 +641,7 @@ source "arch/mips/basler/excite/Kconfig" + source "arch/mips/jazz/Kconfig" + source "arch/mips/lasat/Kconfig" + source "arch/mips/pmc-sierra/Kconfig" ++source "arch/mips/ralink/Kconfig" + source "arch/mips/sgi-ip27/Kconfig" + source "arch/mips/sibyte/Kconfig" + source "arch/mips/txx9/Kconfig" diff --git a/target/linux/ramips/patches-2.6.30/101-rt288x_serial_driver_hack.patch b/target/linux/ramips/patches-2.6.30/101-rt288x_serial_driver_hack.patch new file mode 100644 index 000000000..eedd704aa --- /dev/null +++ b/target/linux/ramips/patches-2.6.30/101-rt288x_serial_driver_hack.patch @@ -0,0 +1,118 @@ +--- a/drivers/serial/8250.c ++++ b/drivers/serial/8250.c +@@ -289,9 +289,9 @@ static const struct serial8250_config ua + }, + }; + +-#if defined (CONFIG_SERIAL_8250_AU1X00) ++#if defined (CONFIG_SERIAL_8250_AU1X00) || defined (CONFIG_SERIAL_8250_RT288X) + +-/* Au1x00 UART hardware has a weird register layout */ ++/* Au1x00 and RT288x UART hardware has a weird register layout */ + static const u8 au_io_in_map[] = { + [UART_RX] = 0, + [UART_IER] = 2, +@@ -409,7 +409,7 @@ static unsigned int mem32_serial_in(stru + return readl(p->membase + offset); + } + +-#ifdef CONFIG_SERIAL_8250_AU1X00 ++#if defined(CONFIG_SERIAL_8250_AU1X00) || defined(CONFIG_SERIAL_8250_RT288X) + static unsigned int au_serial_in(struct uart_port *p, int offset) + { + offset = map_8250_in_reg(p, offset) << p->regshift; +@@ -490,7 +490,7 @@ static void set_io_from_upio(struct uart + p->serial_out = mem32_serial_out; + break; + +-#ifdef CONFIG_SERIAL_8250_AU1X00 ++#if defined (CONFIG_SERIAL_8250_AU1X00) || defined (CONFIG_SERIAL_8250_RT288X) + case UPIO_AU: + p->serial_in = au_serial_in; + p->serial_out = au_serial_out; +@@ -522,7 +522,7 @@ serial_out_sync(struct uart_8250_port *u + switch (p->iotype) { + case UPIO_MEM: + case UPIO_MEM32: +-#ifdef CONFIG_SERIAL_8250_AU1X00 ++#if defined (CONFIG_SERIAL_8250_AU1X00) || defined (CONFIG_SERIAL_8250_RT288X) + case UPIO_AU: + #endif + case UPIO_DWAPB: +@@ -560,8 +560,8 @@ static inline void _serial_dl_write(stru + serial_outp(up, UART_DLM, value >> 8 & 0xff); + } + +-#if defined(CONFIG_SERIAL_8250_AU1X00) +-/* Au1x00 haven't got a standard divisor latch */ ++#if defined (CONFIG_SERIAL_8250_AU1X00) || defined (CONFIG_SERIAL_8250_RT288X) ++/* Au1x00 and RT288x haven't got a standard divisor latch */ + static int serial_dl_read(struct uart_8250_port *up) + { + if (up->port.iotype == UPIO_AU) +@@ -768,22 +768,19 @@ static int size_fifo(struct uart_8250_po + */ + static unsigned int autoconfig_read_divisor_id(struct uart_8250_port *p) + { +- unsigned char old_dll, old_dlm, old_lcr; ++ unsigned char old_lcr; ++ unsigned int old_dl; + unsigned int id; + + old_lcr = serial_inp(p, UART_LCR); + serial_outp(p, UART_LCR, UART_LCR_DLAB); + +- old_dll = serial_inp(p, UART_DLL); +- old_dlm = serial_inp(p, UART_DLM); ++ old_dl = serial_dl_read(p); + +- serial_outp(p, UART_DLL, 0); +- serial_outp(p, UART_DLM, 0); ++ serial_dl_write(p, 0); ++ id = serial_dl_read(p); + +- id = serial_inp(p, UART_DLL) | serial_inp(p, UART_DLM) << 8; +- +- serial_outp(p, UART_DLL, old_dll); +- serial_outp(p, UART_DLM, old_dlm); ++ serial_dl_write(p, old_dl); + serial_outp(p, UART_LCR, old_lcr); + + return id; +@@ -1205,7 +1202,7 @@ static void autoconfig(struct uart_8250_ + } + #endif + +-#ifdef CONFIG_SERIAL_8250_AU1X00 ++#if defined (CONFIG_SERIAL_8250_AU1X00) || defined (CONFIG_SERIAL_8250_RT288X) + /* if access method is AU, it is a 16550 with a quirk */ + if (up->port.type == PORT_16550A && up->port.iotype == UPIO_AU) + up->bugs |= UART_BUG_NOMSR; +--- a/drivers/serial/Kconfig ++++ b/drivers/serial/Kconfig +@@ -266,6 +266,14 @@ config SERIAL_8250_AU1X00 + say Y to this option. The driver can handle up to 4 serial ports, + depending on the SOC. If unsure, say N. + ++config SERIAL_8250_RT288X ++ bool "Ralink RT288x/RT305x serial port support" ++ depends on SERIAL_8250 != n && (SOC_RT288X || SOC_RT305X) ++ help ++ If you have a Ralink RT288x/RT305x SoC based board and want to use the ++ serial port, say Y to this option. The driver can handle up to 2 serial ++ ports. If unsure, say N. ++ + config SERIAL_8250_RM9K + bool "Support for MIPS RM9xxx integrated serial port" + depends on SERIAL_8250 != n && SERIAL_RM9000 +--- a/include/linux/serial_core.h ++++ b/include/linux/serial_core.h +@@ -269,7 +269,7 @@ struct uart_port { + #define UPIO_HUB6 (1) + #define UPIO_MEM (2) + #define UPIO_MEM32 (3) +-#define UPIO_AU (4) /* Au1x00 type IO */ ++#define UPIO_AU (4) /* Au1x00 and RT288x type IO */ + #define UPIO_TSI (5) /* Tsi108/109 type IO */ + #define UPIO_DWAPB (6) /* DesignWare APB UART */ + #define UPIO_RM9000 (7) /* RM9000 type IO */ |