MIPS: Ingenic XBurst Jz4740 processor support

Jz4740 is a multimedia application processor targeting for mobile
devices like e-Dictionary, eBook, portable media player (PMP) and
GPS navigator.  Jz4740 is powered by Ingenic 360 MHz XBurst CPU core
(JzRISC), in which RISC/SIMD/DSP hybrid instruction set architecture
provides high integration, high performance and low power consumption.

JzRISC incorporated in Jz4740 is the advanced and power-efficient
32-bit RISC core, compatible with MIPS32, with 16K I-Cache and 16K
D-Cache, and can operate at speeds up to 400 MHz.

On-chip modules such as LCD controller, embedded audio codec, multi-
channel SAR-ADC, AC97/I2S controller and camera I/F offer a rich
suite of peripherals for multimedia application.  NAND controller
(SLC/MLC), USB (host 1.1 and device 2.0), UART, I2C, SPI, etc. are
also available.

For more info about Ingenic XBurst Jz4740:
  http://en.ingenic.cn/eng/
  http://www.linux-mips.org/wiki/Ingenic



This patch introduces XBurst CPU support in U-Boot.  It's compatible
with MIPS32, but requires a bit different cache maintenance, timer
routines, and boot mechanism using USB boot tool, so XBurst support
can go into a separate new home, cpu/xburst/.

Signed-off-by: Xiangfu Liu <xiangfu@openmobilefree.net>
Acked-by: Daniel <zpxu@ingenic.cn>
Signed-off-by: Shinya Kuribayashi <skuribay@pobox.com>

README

@@ -181,6 +181,7 @@ Directory Hierarchy:
   /mips			Files generic to MIPS architecture
     /cpu		CPU specific files
       /mips32		Files specific to MIPS32 CPUs
+      /xburst		Files specific to Ingenic XBurst CPUs
     /lib		Architecture specific library files
   /nios2		Files generic to Altera NIOS2 architecture
     /cpu		CPU specific files

arch/mips/cpu/xburst/Makefile

+#
+# Copyright (C) 2011 Xiangfu Liu <xiangfu@openmobilefree.net>
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+
+include $(TOPDIR)/config.mk
+
+LIB	= $(obj)lib$(CPU).o
+
+START	= start.o
+SOBJS-y	=
+COBJS-y	= cpu.o timer.o jz_serial.o
+
+COBJS-$(CONFIG_JZ4740) += jz4740.o
+
+SRCS	:= $(START:.o=.S) $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c)
+OBJS	:= $(addprefix $(obj),$(SOBJS-y) $(COBJS-y))
+START	:= $(addprefix $(obj),$(START))
+
+all:	$(obj).depend $(START) $(LIB)
+
+$(LIB):	$(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################

arch/mips/cpu/xburst/config.mk

+#
+# Copyright (C) 2011 Xiangfu Liu <xiangfu@openmobilefree.net>
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+
+PLATFORM_CPPFLAGS += -march=mips32 -EL
+PLATFORM_LDFLAGS += -EL

arch/mips/cpu/xburst/cpu.c

+/*
+ * (C) Copyright 2003
+ * Wolfgang Denk, DENX Software Engineering, <wd@denx.de>
+ * (C) Copyright 2011
+ * Xiangfu Liu <xiangfu@openmobilefree.net>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <command.h>
+#include <netdev.h>
+#include <asm/mipsregs.h>
+#include <asm/cacheops.h>
+#include <asm/reboot.h>
+#include <asm/io.h>
+#include <asm/jz4740.h>
+
+#define cache_op(op, addr)		\
+	__asm__ __volatile__(		\
+		".set	push\n"		\
+		".set	noreorder\n"	\
+		".set	mips3\n"	\
+		"cache	%0, %1\n"	\
+		".set	pop\n"		\
+		:			\
+		: "i" (op), "R" (*(unsigned char *)(addr)))
+
+void __attribute__((weak)) _machine_restart(void)
+{
+	struct jz4740_wdt *wdt = (struct jz4740_wdt *)JZ4740_WDT_BASE;
+	struct jz4740_tcu *tcu = (struct jz4740_tcu *)JZ4740_TCU_BASE;
+	u16 tmp;
+
+	/* wdt_select_extalclk() */
+	tmp = readw(&wdt->tcsr);
+	tmp &= ~(WDT_TCSR_EXT_EN | WDT_TCSR_RTC_EN | WDT_TCSR_PCK_EN);
+	tmp |= WDT_TCSR_EXT_EN;
+	writew(tmp, &wdt->tcsr);
+
+	/* wdt_select_clk_div64() */
+	tmp = readw(&wdt->tcsr);
+	tmp &= ~WDT_TCSR_PRESCALE_MASK;
+	tmp |= WDT_TCSR_PRESCALE64,
+	writew(tmp, &wdt->tcsr);
+
+	writew(100, &wdt->tdr); /* wdt_set_data(100) */
+	writew(0, &wdt->tcnt); /* wdt_set_count(0); */
+	writew(TCU_TSSR_WDTSC, &tcu->tscr); /* tcu_start_wdt_clock */
+	writeb(readb(&wdt->tcer) | WDT_TCER_TCEN, &wdt->tcer); /* wdt start */
+
+	while (1)
+		;
+}
+
+int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	_machine_restart();
+
+	fprintf(stderr, "*** reset failed ***\n");
+	return 0;
+}
+
+void flush_cache(ulong start_addr, ulong size)
+{
+	unsigned long lsize = CONFIG_SYS_CACHELINE_SIZE;
+	unsigned long addr = start_addr & ~(lsize - 1);
+	unsigned long aend = (start_addr + size - 1) & ~(lsize - 1);
+
+	for (; addr <= aend; addr += lsize) {
+		cache_op(Hit_Writeback_Inv_D, addr);
+		cache_op(Hit_Invalidate_I, addr);
+	}
+}
+
+void flush_dcache_range(ulong start_addr, ulong stop)
+{
+	unsigned long lsize = CONFIG_SYS_CACHELINE_SIZE;
+	unsigned long addr = start_addr & ~(lsize - 1);
+	unsigned long aend = (stop - 1) & ~(lsize - 1);
+
+	for (; addr <= aend; addr += lsize)
+		cache_op(Hit_Writeback_Inv_D, addr);
+}
+
+void invalidate_dcache_range(ulong start_addr, ulong stop)
+{
+	unsigned long lsize = CONFIG_SYS_CACHELINE_SIZE;
+	unsigned long addr = start_addr & ~(lsize - 1);
+	unsigned long aend = (stop - 1) & ~(lsize - 1);
+
+	for (; addr <= aend; addr += lsize)
+		cache_op(Hit_Invalidate_D, addr);
+}
+
+void flush_icache_all(void)
+{
+	u32 addr, t = 0;
+
+	__asm__ __volatile__("mtc0 $0, $28"); /* Clear Taglo */
+	__asm__ __volatile__("mtc0 $0, $29"); /* Clear TagHi */
+
+	for (addr = CKSEG0; addr < CKSEG0 + CONFIG_SYS_ICACHE_SIZE;
+	     addr += CONFIG_SYS_CACHELINE_SIZE) {
+		cache_op(Index_Store_Tag_I, addr);
+	}
+
+	/* invalidate btb */
+	__asm__ __volatile__(
+		".set mips32\n\t"
+		"mfc0 %0, $16, 7\n\t"
+		"nop\n\t"
+		"ori %0,2\n\t"
+		"mtc0 %0, $16, 7\n\t"
+		".set mips2\n\t"
+		:
+		: "r" (t));
+}
+
+void flush_dcache_all(void)
+{
+	u32 addr;
+
+	for (addr = CKSEG0; addr < CKSEG0 + CONFIG_SYS_DCACHE_SIZE;
+	     addr += CONFIG_SYS_CACHELINE_SIZE) {
+		cache_op(Index_Writeback_Inv_D, addr);
+	}
+
+	__asm__ __volatile__("sync");
+}
+
+void flush_cache_all(void)
+{
+	flush_dcache_all();
+	flush_icache_all();
+}

arch/mips/cpu/xburst/jz4740.c

+/*
+ * Jz4740 common routines
+ * Copyright (c) 2006 Ingenic Semiconductor, <jlwei@ingenic.cn>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <config.h>
+#include <common.h>
+#include <asm/io.h>
+#include <asm/jz4740.h>
+
+void enable_interrupts(void)
+{
+}
+
+int disable_interrupts(void)
+{
+	return 0;
+}
+
+/*
+ * PLL output clock = EXTAL * NF / (NR * NO)
+ * NF = FD + 2, NR = RD + 2
+ * NO = 1 (if OD = 0), NO = 2 (if OD = 1 or 2), NO = 4 (if OD = 3)
+ */
+void pll_init(void)
+{
+	struct jz4740_cpm *cpm = (struct jz4740_cpm *)JZ4740_CPM_BASE;
+
+	register unsigned int cfcr, plcr1;
+	int n2FR[33] = {
+		0, 0, 1, 2, 3, 0, 4, 0, 5, 0, 0, 0, 6, 0, 0, 0,
+		7, 0, 0, 0, 0, 0, 0, 0, 8, 0, 0, 0, 0, 0, 0, 0,
+		9
+	};
+	int div[5] = {1, 3, 3, 3, 3}; /* divisors of I:S:P:L:M */
+	int nf, pllout2;
+
+	cfcr =	CPM_CPCCR_CLKOEN |
+		CPM_CPCCR_PCS |
+		(n2FR[div[0]] << CPM_CPCCR_CDIV_BIT) |
+		(n2FR[div[1]] << CPM_CPCCR_HDIV_BIT) |
+		(n2FR[div[2]] << CPM_CPCCR_PDIV_BIT) |
+		(n2FR[div[3]] << CPM_CPCCR_MDIV_BIT) |
+		(n2FR[div[4]] << CPM_CPCCR_LDIV_BIT);
+
+	pllout2 = (cfcr & CPM_CPCCR_PCS) ?
+		CONFIG_SYS_CPU_SPEED : (CONFIG_SYS_CPU_SPEED / 2);
+
+	/* Init USB Host clock, pllout2 must be n*48MHz */
+	writel(pllout2 / 48000000 - 1, &cpm->uhccdr);
+
+	nf = CONFIG_SYS_CPU_SPEED * 2 / CONFIG_SYS_EXTAL;
+	plcr1 = ((nf - 2) << CPM_CPPCR_PLLM_BIT) | /* FD */
+		(0 << CPM_CPPCR_PLLN_BIT) |	/* RD=0, NR=2 */
+		(0 << CPM_CPPCR_PLLOD_BIT) |	/* OD=0, NO=1 */
+		(0x20 << CPM_CPPCR_PLLST_BIT) |	/* PLL stable time */
+		CPM_CPPCR_PLLEN;		/* enable PLL */
+
+	/* init PLL */
+	writel(cfcr, &cpm->cpccr);
+	writel(plcr1, &cpm->cppcr);
+}
+
+void sdram_init(void)
+{
+	struct jz4740_emc *emc = (struct jz4740_emc *)JZ4740_EMC_BASE;
+
+	register unsigned int dmcr0, dmcr, sdmode, tmp, cpu_clk, mem_clk, ns;
+
+	unsigned int cas_latency_sdmr[2] = {
+		EMC_SDMR_CAS_2,
+		EMC_SDMR_CAS_3,
+	};
+
+	unsigned int cas_latency_dmcr[2] = {
+		1 << EMC_DMCR_TCL_BIT,	/* CAS latency is 2 */
+		2 << EMC_DMCR_TCL_BIT	/* CAS latency is 3 */
+	};
+
+	int div[] = {1, 2, 3, 4, 6, 8, 12, 16, 24, 32};
+
+	cpu_clk = CONFIG_SYS_CPU_SPEED;
+	mem_clk = cpu_clk * div[__cpm_get_cdiv()] / div[__cpm_get_mdiv()];
+
+	writel(0, &emc->bcr);	/* Disable bus release */
+	writew(0, &emc->rtcsr);	/* Disable clock for counting */
+
+	/* Fault DMCR value for mode register setting*/
+#define SDRAM_ROW0	11
+#define SDRAM_COL0	8
+#define SDRAM_BANK40	0
+
+	dmcr0 = ((SDRAM_ROW0 - 11) << EMC_DMCR_RA_BIT) |
+		((SDRAM_COL0 - 8) << EMC_DMCR_CA_BIT) |
+		(SDRAM_BANK40 << EMC_DMCR_BA_BIT) |
+		(SDRAM_BW16 << EMC_DMCR_BW_BIT) |
+		EMC_DMCR_EPIN |
+		cas_latency_dmcr[((SDRAM_CASL == 3) ? 1 : 0)];
+
+	/* Basic DMCR value */
+	dmcr = ((SDRAM_ROW - 11) << EMC_DMCR_RA_BIT) |
+		((SDRAM_COL - 8) << EMC_DMCR_CA_BIT) |
+		(SDRAM_BANK4 << EMC_DMCR_BA_BIT) |
+		(SDRAM_BW16 << EMC_DMCR_BW_BIT) |
+		EMC_DMCR_EPIN |
+		cas_latency_dmcr[((SDRAM_CASL == 3) ? 1 : 0)];
+
+	/* SDRAM timimg */
+	ns = 1000000000 / mem_clk;
+	tmp = SDRAM_TRAS / ns;
+	if (tmp < 4)
+		tmp = 4;
+	if (tmp > 11)
+		tmp = 11;
+	dmcr |= (tmp - 4) << EMC_DMCR_TRAS_BIT;
+	tmp = SDRAM_RCD / ns;
+
+	if (tmp > 3)
+		tmp = 3;
+	dmcr |= tmp << EMC_DMCR_RCD_BIT;
+	tmp = SDRAM_TPC / ns;
+
+	if (tmp > 7)
+		tmp = 7;
+	dmcr |= tmp << EMC_DMCR_TPC_BIT;
+	tmp = SDRAM_TRWL / ns;
+
+	if (tmp > 3)
+		tmp = 3;
+	dmcr |= tmp << EMC_DMCR_TRWL_BIT;
+	tmp = (SDRAM_TRAS + SDRAM_TPC) / ns;
+
+	if (tmp > 14)
+		tmp = 14;
+	dmcr |= ((tmp + 1) >> 1) << EMC_DMCR_TRC_BIT;
+
+	/* SDRAM mode value */
+	sdmode = EMC_SDMR_BT_SEQ |
+		 EMC_SDMR_OM_NORMAL |
+		 EMC_SDMR_BL_4 |
+		 cas_latency_sdmr[((SDRAM_CASL == 3) ? 1 : 0)];
+
+	/* Stage 1. Precharge all banks by writing SDMR with DMCR.MRSET=0 */
+	writel(dmcr, &emc->dmcr);
+	writeb(0, JZ4740_EMC_SDMR0 | sdmode);
+
+	/* Wait for precharge, > 200us */
+	tmp = (cpu_clk / 1000000) * 1000;
+	while (tmp--)
+		;
+
+	/* Stage 2. Enable auto-refresh */
+	writel(dmcr | EMC_DMCR_RFSH, &emc->dmcr);
+
+	tmp = SDRAM_TREF / ns;
+	tmp = tmp / 64 + 1;
+	if (tmp > 0xff)
+		tmp = 0xff;
+	writew(tmp, &emc->rtcor);
+	writew(0, &emc->rtcnt);
+	/* Divisor is 64, CKO/64 */
+	writew(EMC_RTCSR_CKS_64, &emc->rtcsr);
+
+	/* Wait for number of auto-refresh cycles */
+	tmp = (cpu_clk / 1000000) * 1000;
+	while (tmp--)
+		;
+
+	/* Stage 3. Mode Register Set */
+	writel(dmcr0 | EMC_DMCR_RFSH | EMC_DMCR_MRSET, &emc->dmcr);
+	writeb(0, JZ4740_EMC_SDMR0 | sdmode);
+
+	/* Set back to basic DMCR value */
+	writel(dmcr | EMC_DMCR_RFSH | EMC_DMCR_MRSET, &emc->dmcr);
+
+	/* everything is ok now */
+}
+
+DECLARE_GLOBAL_DATA_PTR;
+
+void calc_clocks(void)
+{
+	unsigned int pllout;
+	unsigned int div[10] = {1, 2, 3, 4, 6, 8, 12, 16, 24, 32};
+
+	pllout = __cpm_get_pllout();
+
+	gd->cpu_clk = pllout / div[__cpm_get_cdiv()];
+	gd->sys_clk = pllout / div[__cpm_get_hdiv()];
+	gd->per_clk = pllout / div[__cpm_get_pdiv()];
+	gd->mem_clk = pllout / div[__cpm_get_mdiv()];
+	gd->dev_clk = CONFIG_SYS_EXTAL;
+}
+
+void rtc_init(void)
+{
+	struct jz4740_rtc *rtc = (struct jz4740_rtc *)JZ4740_RTC_BASE;
+
+	while (!(readl(&rtc->rcr) & RTC_RCR_WRDY))
+		;
+	writel(readl(&rtc->rcr) | RTC_RCR_AE, &rtc->rcr); /* enable alarm */
+
+	while (!(readl(&rtc->rcr) & RTC_RCR_WRDY))
+		;
+	writel(0x00007fff, &rtc->rgr); /* type value */
+
+	while (!(readl(&rtc->rcr) & RTC_RCR_WRDY))
+		;
+	writel(0x0000ffe0, &rtc->hwfcr); /* Power on delay 2s */
+
+	while (!(readl(&rtc->rcr) & RTC_RCR_WRDY))
+		;
+	writel(0x00000fe0, &rtc->hrcr); /* reset delay 125ms */
+}
+
+/* U-Boot common routines */
+phys_size_t initdram(int board_type)
+{
+	struct jz4740_emc *emc = (struct jz4740_emc *)JZ4740_EMC_BASE;
+	u32 dmcr;
+	u32 rows, cols, dw, banks;
+	ulong size;
+
+	dmcr = readl(&emc->dmcr);
+	rows = 11 + ((dmcr & EMC_DMCR_RA_MASK) >> EMC_DMCR_RA_BIT);
+	cols = 8 + ((dmcr & EMC_DMCR_CA_MASK) >> EMC_DMCR_CA_BIT);
+	dw = (dmcr & EMC_DMCR_BW) ? 2 : 4;
+	banks = (dmcr & EMC_DMCR_BA) ? 4 : 2;
+
+	size = (1 << (rows + cols)) * dw * banks;
+
+	return size;
+}

arch/mips/cpu/xburst/jz_serial.c

+/*
+ * Jz4740 UART support
+ * Copyright (c) 2011
+ * Qi Hardware, Xiangfu Liu <xiangfu@sharism.cc>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <config.h>
+#include <common.h>
+#include <asm/io.h>
+#include <asm/jz4740.h>
+
+/*
+ * serial_init - initialize a channel
+ *
+ * This routine initializes the number of data bits, parity
+ * and set the selected baud rate. Interrupts are disabled.
+ * Set the modem control signals if the option is selected.
+ *
+ * RETURNS: N/A
+ */
+struct jz4740_uart *uart = (struct jz4740_uart *)CONFIG_SYS_UART_BASE;
+
+int serial_init(void)
+{
+	/* Disable port interrupts while changing hardware */
+	writeb(0, &uart->dlhr_ier);
+
+	/* Disable UART unit function */
+	writeb(~UART_FCR_UUE, &uart->iir_fcr);
+
+	/* Set both receiver and transmitter in UART mode (not SIR) */
+	writeb(~(SIRCR_RSIRE | SIRCR_TSIRE), &uart->isr);
+
+	/*
+	 * Set databits, stopbits and parity.
+	 * (8-bit data, 1 stopbit, no parity)
+	 */
+	writeb(UART_LCR_WLEN_8 | UART_LCR_STOP_1, &uart->lcr);
+
+	/* Set baud rate */
+	serial_setbrg();
+
+	/* Enable UART unit, enable and clear FIFO */
+	writeb(UART_FCR_UUE | UART_FCR_FE | UART_FCR_TFLS | UART_FCR_RFLS,
+	       &uart->iir_fcr);
+
+	return 0;
+}
+
+void serial_setbrg(void)
+{
+	u32 baud_div, tmp;
+
+	baud_div = CONFIG_SYS_EXTAL / 16 / CONFIG_BAUDRATE;
+
+	tmp = readb(&uart->lcr);
+	tmp |= UART_LCR_DLAB;
+	writeb(tmp, &uart->lcr);
+
+	writeb((baud_div >> 8) & 0xff, &uart->dlhr_ier);
+	writeb(baud_div & 0xff, &uart->rbr_thr_dllr);
+
+	tmp &= ~UART_LCR_DLAB;
+	writeb(tmp, &uart->lcr);
+}
+
+int serial_tstc(void)
+{
+	if (readb(&uart->lsr) & UART_LSR_DR)
+		return 1;
+
+	return 0;
+}
+
+void serial_putc(const char c)
+{
+	if (c == '\n')
+		serial_putc('\r');
+
+	/* Wait for fifo to shift out some bytes */
+	while (!((readb(&uart->lsr) & (UART_LSR_TDRQ | UART_LSR_TEMT)) == 0x60))
+		;
+
+	writeb((u8)c, &uart->rbr_thr_dllr);
+}
+
+int serial_getc(void)
+{
+	while (!serial_tstc())
+		;
+
+	return readb(&uart->rbr_thr_dllr);
+}
+
+void serial_puts(const char *s)
+{
+	while (*s)
+		serial_putc(*s++);
+}

arch/mips/cpu/xburst/start.S

+/*
+ *  Startup Code for MIPS32 XBURST CPU-core
+ *
+ *  Copyright (c) 2010 Xiangfu Liu <xiangfu@sharism.cc>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <config.h>
+#include <version.h>
+#include <asm/regdef.h>
+#include <asm/mipsregs.h>
+#include <asm/addrspace.h>
+#include <asm/cacheops.h>
+
+	.set noreorder
+
+	.globl _start
+	.text
+_start:
+	/* Initialize $gp */
+	bal	1f
+	 nop
+	.word	_gp
+1:
+	lw	gp, 0(ra)
+
+	/* Set up temporary stack */
+	li	sp, CONFIG_SYS_SDRAM_BASE + CONFIG_SYS_INIT_SP_OFFSET
+
+	la	t9, board_init_f
+	jr	t9
+	 nop
+
+/*
+ * void relocate_code (addr_sp, gd, addr_moni)
+ *
+ * This "function" does not return, instead it continues in RAM
+ * after relocating the monitor code.
+ *
+ * a0 = addr_sp
+ * a1 = gd
+ * a2 = destination address
+ */
+	.globl	relocate_code
+	.ent	relocate_code
+relocate_code:
+	move	sp, a0			# set new stack pointer
+
+	li	t0, CONFIG_SYS_MONITOR_BASE
+	la	t3, in_ram
+	lw	t2, -12(t3)		# t2 <-- uboot_end_data
+	move	t1, a2
+
+	/*
+	 * Fix $gp:
+	 *
+	 * New $gp = (Old $gp - CONFIG_SYS_MONITOR_BASE) + Destination Address
+	 */
+	move	t6, gp
+	sub	gp, CONFIG_SYS_MONITOR_BASE
+	add	gp, a2			# gp now adjusted
+	sub	t6, gp, t6		# t6 <-- relocation offset
+
+	/*
+	 * t0 = source address
+	 * t1 = target address
+	 * t2 = source end address
+	 */
+1:
+	lw	t3, 0(t0)
+	sw	t3, 0(t1)
+	addu	t0, 4
+	ble	t0, t2, 1b
+	 addu	t1, 4
+
+	/* If caches were enabled, we would have to flush them here. */
+
+	/* flush d-cache */
+	li	t0, KSEG0
+	addi	t1, t0, CONFIG_SYS_DCACHE_SIZE
+2:
+	cache	Index_Writeback_Inv_D, 0(t0)
+	bne	t0, t1, 2b
+	 addi	t0, CONFIG_SYS_CACHELINE_SIZE
+
+	sync
+
+	/* flush i-cache */
+	li	t0, KSEG0
+	addi	t1, t0, CONFIG_SYS_ICACHE_SIZE
+3:
+	cache	Index_Invalidate_I, 0(t0)
+	bne	t0, t1, 3b
+	 addi	t0, CONFIG_SYS_CACHELINE_SIZE
+
+	/* Invalidate BTB */
+	mfc0	t0, CP0_CONFIG, 7
+	nop
+	ori	t0, 2
+	mtc0	t0, CP0_CONFIG, 7
+	nop
+
+	/* Jump to where we've relocated ourselves */
+	addi	t0, a2, in_ram - _start
+	jr	t0
+	 nop
+
+	.word	_gp
+	.word	_GLOBAL_OFFSET_TABLE_
+	.word	uboot_end_data
+	.word	uboot_end
+	.word	num_got_entries
+
+in_ram:
+	/*
+	 * Now we want to update GOT.
+	 *
+	 * GOT[0] is reserved. GOT[1] is also reserved for the dynamic object
+	 * generated by GNU ld. Skip these reserved entries from relocation.
+	 */
+	lw	t3, -4(t0)		# t3 <-- num_got_entries
+	lw	t4, -16(t0)		# t4 <-- _GLOBAL_OFFSET_TABLE_
+	lw	t5, -20(t0)		# t5 <-- _gp
+	sub	t4, t5			# compute offset
+	add	t4, t4, gp		# t4 now holds relocated _G_O_T_
+	addi	t4, t4, 8		# skipping first two entries
+	li	t2, 2
+1:
+	lw	t1, 0(t4)
+	beqz	t1, 2f
+	 add	t1, t6
+	sw	t1, 0(t4)
+2:
+	addi	t2, 1
+	blt	t2, t3, 1b
+	 addi	t4, 4
+
+	/* Clear BSS */
+	lw	t1, -12(t0)		# t1 <-- uboot_end_data
+	lw	t2, -8(t0)		# t2 <-- uboot_end
+	add	t1, t6			# adjust pointers
+	add	t2, t6
+
+	sub	t1, 4
+1:	addi	t1, 4
+	bltl	t1, t2, 1b
+	 sw	zero, 0(t1)
+
+	move	a0, a1			# a0 <-- gd
+	la	t9, board_init_r
+	jr	t9
+	 move	a1, a2
+
+	.end	relocate_code

arch/mips/cpu/xburst/timer.c

+/*
+ *  Copyright (c) 2006
+ *  Ingenic Semiconductor, <jlwei@ingenic.cn>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <config.h>
+#include <common.h>
+#include <asm/io.h>
+
+#include <asm/jz4740.h>
+
+#define TIMER_CHAN  0
+#define TIMER_FDATA 0xffff  /* Timer full data value */
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static struct jz4740_tcu *tcu = (struct jz4740_tcu *)JZ4740_TCU_BASE;
+
+void reset_timer_masked(void)
+{
+	/* reset time */
+	gd->lastinc = readw(&tcu->tcnt0);
+	gd->tbl = 0;
+}
+
+ulong get_timer_masked(void)
+{
+	ulong now = readw(&tcu->tcnt0);
+
+	if (gd->lastinc <= now)
+		gd->tbl += now - gd->lastinc; /* normal mode */
+	else {
+		/* we have an overflow ... */
+		gd->tbl += TIMER_FDATA + now - gd->lastinc;
+	}
+
+	gd->lastinc = now;
+
+	return gd->tbl;
+}
+
+void udelay_masked(unsigned long usec)
+{
+	ulong tmo;
+	ulong endtime;
+	signed long diff;
+
+	/* normalize */
+	if (usec >= 1000) {
+		tmo = usec / 1000;
+		tmo *= CONFIG_SYS_HZ;
+		tmo /= 1000;
+	} else {
+		if (usec > 1) {
+			tmo = usec * CONFIG_SYS_HZ;
+			tmo /= 1000*1000;
+		} else
+			tmo = 1;
+	}
+
+	endtime = get_timer_masked() + tmo;
+
+	do {
+		ulong now = get_timer_masked();
+		diff = endtime - now;
+	} while (diff >= 0);
+}
+
+int timer_init(void)
+{
+	writew(TCU_TCSR_PRESCALE256 | TCU_TCSR_EXT_EN, &tcu->tcsr0);
+
+	writew(0, &tcu->tcnt0);
+	writew(0, &tcu->tdhr0);
+	writew(TIMER_FDATA, &tcu->tdfr0);
+
+	/* mask irqs */
+	writel((1 << TIMER_CHAN) | (1 << (TIMER_CHAN + 16)), &tcu->tmsr);
+	writel(1 << TIMER_CHAN, &tcu->tscr); /* enable timer clock */
+	writeb(1 << TIMER_CHAN, &tcu->tesr); /* start counting up */
+
+	gd->lastinc = 0;
+	gd->tbl = 0;
+
+	return 0;
+}
+
+void reset_timer(void)
+{
+	reset_timer_masked();
+}
+
+ulong get_timer(ulong base)
+{
+	return get_timer_masked() - base;
+}
+
+void set_timer(ulong t)
+{
+	gd->tbl = t;
+}
+
+void __udelay(unsigned long usec)
+{
+	ulong tmo, tmp;
+
+	/* normalize */
+	if (usec >= 1000) {
+		tmo = usec / 1000;
+		tmo *= CONFIG_SYS_HZ;
+		tmo /= 1000;
+	} else {
+		if (usec >= 1) {
+			tmo = usec * CONFIG_SYS_HZ;
+			tmo /= 1000 * 1000;
+		} else
+			tmo = 1;
+	}
+
+	/* check for rollover during this delay */
+	tmp = get_timer(0);
+	if ((tmp + tmo) < tmp)
+		reset_timer_masked();  /* timer would roll over */
+	else
+		tmo += tmp;
+
+	while (get_timer_masked() < tmo)
+		;
+}
+
+/*
+ * This function is derived from PowerPC code (read timebase as long long).
+ * On MIPS it just returns the timer value.
+ */
+unsigned long long get_ticks(void)
+{
+	return get_timer(0);
+}
+
+/*
+ * This function is derived from PowerPC code (timebase clock frequency).
+ * On MIPS it returns the number of timer ticks per second.
+ */
+ulong get_tbclk(void)
+{
+	return CONFIG_SYS_HZ;
+}

arch/mips/include/asm/global_data.h

@@ -39,6 +39,17 @@
 typedef	struct	global_data {
 	bd_t		*bd;
 	unsigned long	flags;
+#ifdef CONFIG_JZSOC
+	/* There are other clocks in the jz4740 */
+	unsigned long	cpu_clk;	/* CPU core clock */
+	unsigned long	sys_clk;	/* System bus clock */
+	unsigned long	per_clk;	/* Peripheral bus clock */
+	unsigned long	mem_clk;	/* Memory bus clock */
+	unsigned long	dev_clk;	/* Device clock */
+	/* "static data" needed by most of timer.c */
+	unsigned long	tbl;
+	unsigned long	lastinc;
+#endif
 	unsigned long	baudrate;
 	unsigned long	have_console;	/* serial_init() was called */
 #ifdef CONFIG_PRE_CONSOLE_BUFFER

arch/mips/include/asm/jz4740.h

+/*
+ * head file for Ingenic Semiconductor's JZ4740 CPU.
+ */
+#ifndef __JZ4740_H__
+#define __JZ4740_H__
+
+#include <asm/addrspace.h>
+#include <asm/cacheops.h>
+
+/* Boot ROM Specification  */
+/* NOR Boot config */
+#define JZ4740_NORBOOT_8BIT	0x00000000	/* 8-bit data bus flash */
+#define JZ4740_NORBOOT_16BIT	0x10101010	/* 16-bit data bus flash */
+#define JZ4740_NORBOOT_32BIT	0x20202020	/* 32-bit data bus flash */
+/* NAND Boot config */
+#define JZ4740_NANDBOOT_B8R3	0xffffffff	/* 8-bit bus & 3 row cycles */
+#define JZ4740_NANDBOOT_B8R2	0xf0f0f0f0	/* 8-bit bus & 2 row cycles */
+#define JZ4740_NANDBOOT_B16R3	0x0f0f0f0f	/* 16-bit bus & 3 row cycles */
+#define JZ4740_NANDBOOT_B16R2	0x00000000	/* 16-bit bus & 2 row cycles */
+
+/* 1st-level interrupts */
+#define JZ4740_IRQ_I2C		1
+#define JZ4740_IRQ_UHC		3
+#define JZ4740_IRQ_UART0	9
+#define JZ4740_IRQ_SADC		12
+#define JZ4740_IRQ_MSC		14
+#define JZ4740_IRQ_RTC		15
+#define JZ4740_IRQ_SSI		16
+#define JZ4740_IRQ_CIM		17
+#define JZ4740_IRQ_AIC		18
+#define JZ4740_IRQ_ETH		19
+#define JZ4740_IRQ_DMAC		20
+#define JZ4740_IRQ_TCU2		21
+#define JZ4740_IRQ_TCU1		22
+#define JZ4740_IRQ_TCU0		23
+#define JZ4740_IRQ_UDC		24
+#define JZ4740_IRQ_GPIO3	25
+#define JZ4740_IRQ_GPIO2	26
+#define JZ4740_IRQ_GPIO1	27
+#define JZ4740_IRQ_GPIO0	28
+#define JZ4740_IRQ_IPU		29
+#define JZ4740_IRQ_LCD		30
+/* 2nd-level interrupts */
+#define JZ4740_IRQ_DMA_0	32  /* 32 to 37 for DMAC channel 0 to 5 */
+#define JZ4740_IRQ_GPIO_0	48  /* 48 to 175 for GPIO pin 0 to 127 */
+
+/* Register Definitions */
+#define JZ4740_CPM_BASE		0x10000000
+#define JZ4740_INTC_BASE	0x10001000
+#define JZ4740_TCU_BASE		0x10002000
+#define JZ4740_WDT_BASE		0x10002000
+#define JZ4740_RTC_BASE		0x10003000
+#define JZ4740_GPIO_BASE	0x10010000
+#define JZ4740_AIC_BASE		0x10020000
+#define JZ4740_ICDC_BASE	0x10020000
+#define JZ4740_MSC_BASE		0x10021000
+#define JZ4740_UART0_BASE	0x10030000
+#define JZ4740_I2C_BASE		0x10042000
+#define JZ4740_SSI_BASE		0x10043000
+#define JZ4740_SADC_BASE	0x10070000
+#define JZ4740_EMC_BASE		0x13010000
+#define JZ4740_DMAC_BASE	0x13020000
+#define JZ4740_UHC_BASE		0x13030000
+#define JZ4740_UDC_BASE		0x13040000
+#define JZ4740_LCD_BASE		0x13050000
+#define JZ4740_SLCD_BASE	0x13050000
+#define JZ4740_CIM_BASE		0x13060000
+#define JZ4740_ETH_BASE		0x13100000
+
+/* 8bit Mode Register of SDRAM bank 0 */
+#define JZ4740_EMC_SDMR0	(JZ4740_EMC_BASE + 0xa000)
+
+/* GPIO (General-Purpose I/O Ports) */
+/*  = 0,1,2,3 */
+#define GPIO_PXPIN(n)	\
+	(JZ4740_GPIO_BASE + (0x00 + (n)*0x100)) /* PIN Level Register */
+#define GPIO_PXDAT(n)	\
+	(JZ4740_GPIO_BASE + (0x10 + (n)*0x100)) /* Port Data Register */
+#define GPIO_PXDATS(n)	\
+	(JZ4740_GPIO_BASE + (0x14 + (n)*0x100)) /* Port Data Set Register */
+#define GPIO_PXDATC(n)	\
+	(JZ4740_GPIO_BASE + (0x18 + (n)*0x100)) /* Port Data Clear Register */
+#define GPIO_PXIM(n)	\
+	(JZ4740_GPIO_BASE + (0x20 + (n)*0x100)) /* Interrupt Mask Register */
+#define GPIO_PXIMS(n)	\
+	(JZ4740_GPIO_BASE + (0x24 + (n)*0x100)) /* Interrupt Mask Set Reg */
+#define GPIO_PXIMC(n)	\
+	(JZ4740_GPIO_BASE + (0x28 + (n)*0x100)) /* Interrupt Mask Clear Reg */
+#define GPIO_PXPE(n)	\
+	(JZ4740_GPIO_BASE + (0x30 + (n)*0x100)) /* Pull Enable Register */
+#define GPIO_PXPES(n)	\
+	(JZ4740_GPIO_BASE + (0x34 + (n)*0x100)) /* Pull Enable Set Reg. */
+#define GPIO_PXPEC(n)	\
+	(JZ4740_GPIO_BASE + (0x38 + (n)*0x100)) /* Pull Enable Clear Reg. */
+#define GPIO_PXFUN(n)	\
+	(JZ4740_GPIO_BASE + (0x40 + (n)*0x100)) /* Function Register */
+#define GPIO_PXFUNS(n)	\
+	(JZ4740_GPIO_BASE + (0x44 + (n)*0x100)) /* Function Set Register */
+#define GPIO_PXFUNC(n)	\
+	(JZ4740_GPIO_BASE + (0x48 + (n)*0x100)) /* Function Clear Register */
+#define GPIO_PXSEL(n)	\
+	(JZ4740_GPIO_BASE + (0x50 + (n)*0x100)) /* Select Register */
+#define GPIO_PXSELS(n)	\
+	(JZ4740_GPIO_BASE + (0x54 + (n)*0x100)) /* Select Set Register */
+#define GPIO_PXSELC(n)	\
+	(JZ4740_GPIO_BASE + (0x58 + (n)*0x100)) /* Select Clear Register */
+#define GPIO_PXDIR(n)	\
+	(JZ4740_GPIO_BASE + (0x60 + (n)*0x100)) /* Direction Register */
+#define GPIO_PXDIRS(n)	\
+	(JZ4740_GPIO_BASE + (0x64 + (n)*0x100)) /* Direction Set Register */
+#define GPIO_PXDIRC(n)	\
+	(JZ4740_GPIO_BASE + (0x68 + (n)*0x100)) /* Direction Clear Register */
+#define GPIO_PXTRG(n)	\
+	(JZ4740_GPIO_BASE + (0x70 + (n)*0x100)) /* Trigger Register */
+#define GPIO_PXTRGS(n)	\
+	(JZ4740_GPIO_BASE + (0x74 + (n)*0x100)) /* Trigger Set Register */
+#define GPIO_PXTRGC(n)	\
+	(JZ4740_GPIO_BASE + (0x78 + (n)*0x100)) /* Trigger Set Register */
+
+/* Static Memory Control Register */
+#define EMC_SMCR_STRV_BIT	24
+#define EMC_SMCR_STRV_MASK	(0x0f << EMC_SMCR_STRV_BIT)
+#define EMC_SMCR_TAW_BIT	20
+#define EMC_SMCR_TAW_MASK	(0x0f << EMC_SMCR_TAW_BIT)
+#define EMC_SMCR_TBP_BIT	16
+#define EMC_SMCR_TBP_MASK	(0x0f << EMC_SMCR_TBP_BIT)
+#define EMC_SMCR_TAH_BIT	12
+#define EMC_SMCR_TAH_MASK	(0x07 << EMC_SMCR_TAH_BIT)
+#define EMC_SMCR_TAS_BIT	8
+#define EMC_SMCR_TAS_MASK	(0x07 << EMC_SMCR_TAS_BIT)
+#define EMC_SMCR_BW_BIT		6
+#define EMC_SMCR_BW_MASK	(0x03 << EMC_SMCR_BW_BIT)
+  #define EMC_SMCR_BW_8BIT	(0 << EMC_SMCR_BW_BIT)
+  #define EMC_SMCR_BW_16BIT	(1 << EMC_SMCR_BW_BIT)
+  #define EMC_SMCR_BW_32BIT	(2 << EMC_SMCR_BW_BIT)
+#define EMC_SMCR_BCM		(1 << 3)
+#define EMC_SMCR_BL_BIT		1
+#define EMC_SMCR_BL_MASK	(0x03 << EMC_SMCR_BL_BIT)
+  #define EMC_SMCR_BL_4		(0 << EMC_SMCR_BL_BIT)
+  #define EMC_SMCR_BL_8		(1 << EMC_SMCR_BL_BIT)
+  #define EMC_SMCR_BL_16	(2 << EMC_SMCR_BL_BIT)
+  #define EMC_SMCR_BL_32	(3 << EMC_SMCR_BL_BIT)
+#define EMC_SMCR_SMT		(1 << 0)
+
+/* Static Memory Bank Addr Config Reg */
+#define EMC_SACR_BASE_BIT	8
+#define EMC_SACR_BASE_MASK	(0xff << EMC_SACR_BASE_BIT)
+#define EMC_SACR_MASK_BIT	0
+#define EMC_SACR_MASK_MASK	(0xff << EMC_SACR_MASK_BIT)
+
+/* NAND Flash Control/Status Register */
+#define EMC_NFCSR_NFCE4		(1 << 7) /* NAND Flash Enable */
+#define EMC_NFCSR_NFE4		(1 << 6) /* NAND Flash FCE# Assertion Enable */
+#define EMC_NFCSR_NFCE3		(1 << 5)
+#define EMC_NFCSR_NFE3		(1 << 4)
+#define EMC_NFCSR_NFCE2		(1 << 3)
+#define EMC_NFCSR_NFE2		(1 << 2)
+#define EMC_NFCSR_NFCE1		(1 << 1)
+#define EMC_NFCSR_NFE1		(1 << 0)
+
+/* NAND Flash ECC Control Register */
+#define EMC_NFECR_PRDY		(1 << 4) /* Parity Ready */
+#define EMC_NFECR_RS_DECODING	(0 << 3) /* RS is in decoding phase */
+#define EMC_NFECR_RS_ENCODING	(1 << 3) /* RS is in encoding phase */
+#define EMC_NFECR_HAMMING	(0 << 2) /* Use HAMMING Correction Algorithm */
+#define EMC_NFECR_RS		(1 << 2) /* Select RS Correction Algorithm */
+#define EMC_NFECR_ERST		(1 << 1) /* ECC Reset */
+#define EMC_NFECR_ECCE		(1 << 0) /* ECC Enable */
+
+/* NAND Flash ECC Data Register */
+#define EMC_NFECC_ECC2_BIT	16
+#define EMC_NFECC_ECC2_MASK	(0xff << EMC_NFECC_ECC2_BIT)
+#define EMC_NFECC_ECC1_BIT	8
+#define EMC_NFECC_ECC1_MASK	(0xff << EMC_NFECC_ECC1_BIT)
+#define EMC_NFECC_ECC0_BIT	0
+#define EMC_NFECC_ECC0_MASK	(0xff << EMC_NFECC_ECC0_BIT)
+
+/* NAND Flash Interrupt Status Register */
+#define EMC_NFINTS_ERRCNT_BIT	29       /* Error Count */
+#define EMC_NFINTS_ERRCNT_MASK	(0x7 << EMC_NFINTS_ERRCNT_BIT)
+#define EMC_NFINTS_PADF		(1 << 4) /* Padding Finished */
+#define EMC_NFINTS_DECF		(1 << 3) /* Decoding Finished */
+#define EMC_NFINTS_ENCF		(1 << 2) /* Encoding Finished */
+#define EMC_NFINTS_UNCOR	(1 << 1) /* Uncorrectable Error Occurred */
+#define EMC_NFINTS_ERR		(1 << 0) /* Error Occurred */
+
+/* NAND Flash Interrupt Enable Register */
+#define EMC_NFINTE_PADFE	(1 << 4) /* Padding Finished Interrupt */
+#define EMC_NFINTE_DECFE	(1 << 3) /* Decoding Finished Interrupt */
+#define EMC_NFINTE_ENCFE	(1 << 2) /* Encoding Finished Interrupt */
+#define EMC_NFINTE_UNCORE	(1 << 1) /* Uncorrectable Error Occurred Intr */
+#define EMC_NFINTE_ERRE		(1 << 0) /* Error Occurred Interrupt */
+
+/* NAND Flash RS Error Report Register */
+#define EMC_NFERR_INDEX_BIT	16       /* Error Symbol Index */
+#define EMC_NFERR_INDEX_MASK	(0x1ff << EMC_NFERR_INDEX_BIT)
+#define EMC_NFERR_MASK_BIT	0        /* Error Symbol Value */
+#define EMC_NFERR_MASK_MASK	(0x1ff << EMC_NFERR_MASK_BIT)
+
+/* DRAM Control Register */
+#define EMC_DMCR_BW_BIT		31
+#define EMC_DMCR_BW		(1 << EMC_DMCR_BW_BIT)
+#define EMC_DMCR_CA_BIT		26
+#define EMC_DMCR_CA_MASK	(0x07 << EMC_DMCR_CA_BIT)
+  #define EMC_DMCR_CA_8		(0 << EMC_DMCR_CA_BIT)
+  #define EMC_DMCR_CA_9		(1 << EMC_DMCR_CA_BIT)
+  #define EMC_DMCR_CA_10	(2 << EMC_DMCR_CA_BIT)
+  #define EMC_DMCR_CA_11	(3 << EMC_DMCR_CA_BIT)
+  #define EMC_DMCR_CA_12	(4 << EMC_DMCR_CA_BIT)
+#define EMC_DMCR_RMODE		(1 << 25)
+#define EMC_DMCR_RFSH		(1 << 24)
+#define EMC_DMCR_MRSET		(1 << 23)
+#define EMC_DMCR_RA_BIT		20
+#define EMC_DMCR_RA_MASK	(0x03 << EMC_DMCR_RA_BIT)
+  #define EMC_DMCR_RA_11	(0 << EMC_DMCR_RA_BIT)
+  #define EMC_DMCR_RA_12	(1 << EMC_DMCR_RA_BIT)
+  #define EMC_DMCR_RA_13	(2 << EMC_DMCR_RA_BIT)
+#define EMC_DMCR_BA_BIT		19
+#define EMC_DMCR_BA		(1 << EMC_DMCR_BA_BIT)
+#define EMC_DMCR_PDM		(1 << 18)
+#define EMC_DMCR_EPIN		(1 << 17)
+#define EMC_DMCR_TRAS_BIT	13
+#define EMC_DMCR_TRAS_MASK	(0x07 << EMC_DMCR_TRAS_BIT)
+#define EMC_DMCR_RCD_BIT	11
+#define EMC_DMCR_RCD_MASK	(0x03 << EMC_DMCR_RCD_BIT)
+#define EMC_DMCR_TPC_BIT	8
+#define EMC_DMCR_TPC_MASK	(0x07 << EMC_DMCR_TPC_BIT)
+#define EMC_DMCR_TRWL_BIT	5
+#define EMC_DMCR_TRWL_MASK	(0x03 << EMC_DMCR_TRWL_BIT)
+#define EMC_DMCR_TRC_BIT	2
+#define EMC_DMCR_TRC_MASK	(0x07 << EMC_DMCR_TRC_BIT)
+#define EMC_DMCR_TCL_BIT	0
+#define EMC_DMCR_TCL_MASK	(0x03 << EMC_DMCR_TCL_BIT)
+
+/* Refresh Time Control/Status Register */
+#define EMC_RTCSR_CMF		(1 << 7)
+#define EMC_RTCSR_CKS_BIT	0
+#define EMC_RTCSR_CKS_MASK	(0x07 << EMC_RTCSR_CKS_BIT)
+  #define EMC_RTCSR_CKS_DISABLE	(0 << EMC_RTCSR_CKS_BIT)
+  #define EMC_RTCSR_CKS_4	(1 << EMC_RTCSR_CKS_BIT)
+  #define EMC_RTCSR_CKS_16	(2 << EMC_RTCSR_CKS_BIT)
+  #define EMC_RTCSR_CKS_64	(3 << EMC_RTCSR_CKS_BIT)
+  #define EMC_RTCSR_CKS_256	(4 << EMC_RTCSR_CKS_BIT)
+  #define EMC_RTCSR_CKS_1024	(5 << EMC_RTCSR_CKS_BIT)
+  #define EMC_RTCSR_CKS_2048	(6 << EMC_RTCSR_CKS_BIT)
+  #define EMC_RTCSR_CKS_4096	(7 << EMC_RTCSR_CKS_BIT)
+
+/* SDRAM Bank Address Configuration Register */
+#define EMC_DMAR_BASE_BIT	8
+#define EMC_DMAR_BASE_MASK	(0xff << EMC_DMAR_BASE_BIT)
+#define EMC_DMAR_MASK_BIT	0
+#define EMC_DMAR_MASK_MASK	(0xff << EMC_DMAR_MASK_BIT)
+
+/* Mode Register of SDRAM bank 0 */
+#define EMC_SDMR_BM		(1 << 9) /* Write Burst Mode */
+#define EMC_SDMR_OM_BIT		7        /* Operating Mode */
+#define EMC_SDMR_OM_MASK	(3 << EMC_SDMR_OM_BIT)
+  #define EMC_SDMR_OM_NORMAL	(0 << EMC_SDMR_OM_BIT)
+#define EMC_SDMR_CAS_BIT	4        /* CAS Latency */
+#define EMC_SDMR_CAS_MASK	(7 << EMC_SDMR_CAS_BIT)
+  #define EMC_SDMR_CAS_1	(1 << EMC_SDMR_CAS_BIT)
+  #define EMC_SDMR_CAS_2	(2 << EMC_SDMR_CAS_BIT)
+  #define EMC_SDMR_CAS_3	(3 << EMC_SDMR_CAS_BIT)
+#define EMC_SDMR_BT_BIT		3        /* Burst Type */
+#define EMC_SDMR_BT_MASK	(1 << EMC_SDMR_BT_BIT)
+  #define EMC_SDMR_BT_SEQ	(0 << EMC_SDMR_BT_BIT) /* Sequential */
+  #define EMC_SDMR_BT_INT	(1 << EMC_SDMR_BT_BIT) /* Interleave */
+#define EMC_SDMR_BL_BIT		0        /* Burst Length */
+#define EMC_SDMR_BL_MASK	(7 << EMC_SDMR_BL_BIT)
+  #define EMC_SDMR_BL_1		(0 << EMC_SDMR_BL_BIT)
+  #define EMC_SDMR_BL_2		(1 << EMC_SDMR_BL_BIT)
+  #define EMC_SDMR_BL_4		(2 << EMC_SDMR_BL_BIT)
+  #define EMC_SDMR_BL_8		(3 << EMC_SDMR_BL_BIT)
+
+#define EMC_SDMR_CAS2_16BIT \
+	(EMC_SDMR_CAS_2 | EMC_SDMR_BT_SEQ | EMC_SDMR_BL_2)
+#define EMC_SDMR_CAS2_32BIT \
+	(EMC_SDMR_CAS_2 | EMC_SDMR_BT_SEQ | EMC_SDMR_BL_4)
+#define EMC_SDMR_CAS3_16BIT \
+	(EMC_SDMR_CAS_3 | EMC_SDMR_BT_SEQ | EMC_SDMR_BL_2)
+#define EMC_SDMR_CAS3_32BIT \
+	(EMC_SDMR_CAS_3 | EMC_SDMR_BT_SEQ | EMC_SDMR_BL_4)
+
+/* RTC Control Register */
+#define RTC_RCR_WRDY	(1 << 7)  /* Write Ready Flag */
+#define RTC_RCR_HZ	(1 << 6)  /* 1Hz Flag */
+#define RTC_RCR_HZIE	(1 << 5)  /* 1Hz Interrupt Enable */
+#define RTC_RCR_AF	(1 << 4)  /* Alarm Flag */
+#define RTC_RCR_AIE	(1 << 3)  /* Alarm Interrupt Enable */
+#define RTC_RCR_AE	(1 << 2)  /* Alarm Enable */
+#define RTC_RCR_RTCE	(1 << 0)  /* RTC Enable */
+
+/* RTC Regulator Register */
+#define RTC_RGR_LOCK		(1 << 31) /* Lock Bit */
+#define RTC_RGR_ADJC_BIT	16
+#define RTC_RGR_ADJC_MASK	(0x3ff << RTC_RGR_ADJC_BIT)
+#define RTC_RGR_NC1HZ_BIT	0
+#define RTC_RGR_NC1HZ_MASK	(0xffff << RTC_RGR_NC1HZ_BIT)
+
+/* Hibernate Control Register */
+#define RTC_HCR_PD		(1 << 0)  /* Power Down */
+
+/* Hibernate Wakeup Filter Counter Register */
+#define RTC_HWFCR_BIT		5
+#define RTC_HWFCR_MASK		(0x7ff << RTC_HWFCR_BIT)
+
+/* Hibernate Reset Counter Register */
+#define RTC_HRCR_BIT		5
+#define RTC_HRCR_MASK		(0x7f << RTC_HRCR_BIT)
+
+/* Hibernate Wakeup Control Register */
+#define RTC_HWCR_EALM		(1 << 0)  /* RTC alarm wakeup enable */
+
+/* Hibernate Wakeup Status Register */
+#define RTC_HWRSR_HR		(1 << 5)  /* Hibernate reset */
+#define RTC_HWRSR_PPR		(1 << 4)  /* PPR reset */
+#define RTC_HWRSR_PIN		(1 << 1)  /* Wakeup pin status bit */
+#define RTC_HWRSR_ALM		(1 << 0)  /* RTC alarm status bit */
+
+/* Clock Control Register */
+#define CPM_CPCCR_I2CS		(1 << 31)
+#define CPM_CPCCR_CLKOEN	(1 << 30)
+#define CPM_CPCCR_UCS		(1 << 29)
+#define CPM_CPCCR_UDIV_BIT	23
+#define CPM_CPCCR_UDIV_MASK	(0x3f << CPM_CPCCR_UDIV_BIT)
+#define CPM_CPCCR_CE		(1 << 22)
+#define CPM_CPCCR_PCS		(1 << 21)
+#define CPM_CPCCR_LDIV_BIT	16
+#define CPM_CPCCR_LDIV_MASK	(0x1f << CPM_CPCCR_LDIV_BIT)
+#define CPM_CPCCR_MDIV_BIT	12
+#define CPM_CPCCR_MDIV_MASK	(0x0f << CPM_CPCCR_MDIV_BIT)
+#define CPM_CPCCR_PDIV_BIT	8
+#define CPM_CPCCR_PDIV_MASK	(0x0f << CPM_CPCCR_PDIV_BIT)
+#define CPM_CPCCR_HDIV_BIT	4
+#define CPM_CPCCR_HDIV_MASK	(0x0f << CPM_CPCCR_HDIV_BIT)
+#define CPM_CPCCR_CDIV_BIT	0
+#define CPM_CPCCR_CDIV_MASK	(0x0f << CPM_CPCCR_CDIV_BIT)
+
+/* I2S Clock Divider Register */
+#define CPM_I2SCDR_I2SDIV_BIT	0
+#define CPM_I2SCDR_I2SDIV_MASK	(0x1ff << CPM_I2SCDR_I2SDIV_BIT)
+
+/* LCD Pixel Clock Divider Register */
+#define CPM_LPCDR_PIXDIV_BIT	0
+#define CPM_LPCDR_PIXDIV_MASK	(0x1ff << CPM_LPCDR_PIXDIV_BIT)
+
+/* MSC Clock Divider Register */
+#define CPM_MSCCDR_MSCDIV_BIT	0
+#define CPM_MSCCDR_MSCDIV_MASK	(0x1f << CPM_MSCCDR_MSCDIV_BIT)
+
+/* PLL Control Register */
+#define CPM_CPPCR_PLLM_BIT	23
+#define CPM_CPPCR_PLLM_MASK	(0x1ff << CPM_CPPCR_PLLM_BIT)
+#define CPM_CPPCR_PLLN_BIT	18
+#define CPM_CPPCR_PLLN_MASK	(0x1f << CPM_CPPCR_PLLN_BIT)
+#define CPM_CPPCR_PLLOD_BIT	16
+#define CPM_CPPCR_PLLOD_MASK	(0x03 << CPM_CPPCR_PLLOD_BIT)
+#define CPM_CPPCR_PLLS		(1 << 10)
+#define CPM_CPPCR_PLLBP		(1 << 9)
+#define CPM_CPPCR_PLLEN		(1 << 8)
+#define CPM_CPPCR_PLLST_BIT	0
+#define CPM_CPPCR_PLLST_MASK	(0xff << CPM_CPPCR_PLLST_BIT)
+
+/* Low Power Control Register */
+#define CPM_LCR_DOZE_DUTY_BIT	3
+#define CPM_LCR_DOZE_DUTY_MASK	(0x1f << CPM_LCR_DOZE_DUTY_BIT)
+#define CPM_LCR_DOZE_ON		(1 << 2)
+#define CPM_LCR_LPM_BIT		0
+#define CPM_LCR_LPM_MASK	(0x3 << CPM_LCR_LPM_BIT)
+  #define CPM_LCR_LPM_IDLE	(0x0 << CPM_LCR_LPM_BIT)
+  #define CPM_LCR_LPM_SLEEP	(0x1 << CPM_LCR_LPM_BIT)
+
+/* Clock Gate Register */
+#define CPM_CLKGR_UART1		(1 << 15)
+#define CPM_CLKGR_UHC		(1 << 14)
+#define CPM_CLKGR_IPU		(1 << 13)
+#define CPM_CLKGR_DMAC		(1 << 12)
+#define CPM_CLKGR_UDC		(1 << 11)
+#define CPM_CLKGR_LCD		(1 << 10)
+#define CPM_CLKGR_CIM		(1 << 9)
+#define CPM_CLKGR_SADC		(1 << 8)
+#define CPM_CLKGR_MSC		(1 << 7)
+#define CPM_CLKGR_AIC1		(1 << 6)
+#define CPM_CLKGR_AIC2		(1 << 5)
+#define CPM_CLKGR_SSI		(1 << 4)
+#define CPM_CLKGR_I2C		(1 << 3)
+#define CPM_CLKGR_RTC		(1 << 2)
+#define CPM_CLKGR_TCU		(1 << 1)
+#define CPM_CLKGR_UART0		(1 << 0)
+
+/* Sleep Control Register */
+#define CPM_SCR_O1ST_BIT	8
+#define CPM_SCR_O1ST_MASK	(0xff << CPM_SCR_O1ST_BIT)
+#define CPM_SCR_UDCPHY_ENABLE	(1 << 6)
+#define CPM_SCR_USBPHY_DISABLE	(1 << 7)
+#define CPM_SCR_OSC_ENABLE	(1 << 4)
+
+/* Hibernate Control Register */
+#define CPM_HCR_PD		(1 << 0)
+
+/* Wakeup Filter Counter Register in Hibernate Mode */
+#define CPM_HWFCR_TIME_BIT	0
+#define CPM_HWFCR_TIME_MASK	(0x3ff << CPM_HWFCR_TIME_BIT)
+
+/* Reset Counter Register in Hibernate Mode */
+#define CPM_HRCR_TIME_BIT	0
+#define CPM_HRCR_TIME_MASK	(0x7f << CPM_HRCR_TIME_BIT)
+
+/* Wakeup Control Register in Hibernate Mode */
+#define CPM_HWCR_WLE_LOW	(0 << 2)
+#define CPM_HWCR_WLE_HIGH	(1 << 2)
+#define CPM_HWCR_PIN_WAKEUP	(1 << 1)
+#define CPM_HWCR_RTC_WAKEUP	(1 << 0)
+
+/* Wakeup Status Register in Hibernate Mode */
+#define CPM_HWSR_WSR_PIN	(1 << 1)
+#define CPM_HWSR_WSR_RTC	(1 << 0)
+
+/* Reset Status Register */
+#define CPM_RSR_HR		(1 << 2)
+#define CPM_RSR_WR		(1 << 1)
+#define CPM_RSR_PR		(1 << 0)
+
+/* Register definitions */
+#define TCU_TCSR_PWM_SD		(1 << 9)
+#define TCU_TCSR_PWM_INITL_HIGH	(1 << 8)
+#define TCU_TCSR_PWM_EN		(1 << 7)
+#define TCU_TCSR_PRESCALE_BIT	3
+#define TCU_TCSR_PRESCALE_MASK	(0x7 << TCU_TCSR_PRESCALE_BIT)
+#define TCU_TCSR_PRESCALE1	(0x0 << TCU_TCSR_PRESCALE_BIT)
+#define TCU_TCSR_PRESCALE4	(0x1 << TCU_TCSR_PRESCALE_BIT)
+#define TCU_TCSR_PRESCALE16	(0x2 << TCU_TCSR_PRESCALE_BIT)
+#define TCU_TCSR_PRESCALE64	(0x3 << TCU_TCSR_PRESCALE_BIT)
+#define TCU_TCSR_PRESCALE256	(0x4 << TCU_TCSR_PRESCALE_BIT)
+#define TCU_TCSR_PRESCALE1024	(0x5 << TCU_TCSR_PRESCALE_BIT)
+#define TCU_TCSR_EXT_EN		(1 << 2)
+#define TCU_TCSR_RTC_EN		(1 << 1)
+#define TCU_TCSR_PCK_EN		(1 << 0)
+
+#define TCU_TER_TCEN5		(1 << 5)
+#define TCU_TER_TCEN4		(1 << 4)
+#define TCU_TER_TCEN3		(1 << 3)
+#define TCU_TER_TCEN2		(1 << 2)
+#define TCU_TER_TCEN1		(1 << 1)
+#define TCU_TER_TCEN0		(1 << 0)
+
+#define TCU_TESR_TCST5		(1 << 5)
+#define TCU_TESR_TCST4		(1 << 4)
+#define TCU_TESR_TCST3		(1 << 3)
+#define TCU_TESR_TCST2		(1 << 2)
+#define TCU_TESR_TCST1		(1 << 1)
+#define TCU_TESR_TCST0		(1 << 0)
+
+#define TCU_TECR_TCCL5		(1 << 5)
+#define TCU_TECR_TCCL4		(1 << 4)
+#define TCU_TECR_TCCL3		(1 << 3)
+#define TCU_TECR_TCCL2		(1 << 2)
+#define TCU_TECR_TCCL1		(1 << 1)
+#define TCU_TECR_TCCL0		(1 << 0)
+
+#define TCU_TFR_HFLAG5		(1 << 21)
+#define TCU_TFR_HFLAG4		(1 << 20)
+#define TCU_TFR_HFLAG3		(1 << 19)
+#define TCU_TFR_HFLAG2		(1 << 18)
+#define TCU_TFR_HFLAG1		(1 << 17)
+#define TCU_TFR_HFLAG0		(1 << 16)
+#define TCU_TFR_FFLAG5		(1 << 5)
+#define TCU_TFR_FFLAG4		(1 << 4)
+#define TCU_TFR_FFLAG3		(1 << 3)
+#define TCU_TFR_FFLAG2		(1 << 2)
+#define TCU_TFR_FFLAG1		(1 << 1)
+#define TCU_TFR_FFLAG0		(1 << 0)
+
+#define TCU_TFSR_HFLAG5		(1 << 21)
+#define TCU_TFSR_HFLAG4		(1 << 20)
+#define TCU_TFSR_HFLAG3		(1 << 19)
+#define TCU_TFSR_HFLAG2		(1 << 18)
+#define TCU_TFSR_HFLAG1		(1 << 17)
+#define TCU_TFSR_HFLAG0		(1 << 16)
+#define TCU_TFSR_FFLAG5		(1 << 5)
+#define TCU_TFSR_FFLAG4		(1 << 4)
+#define TCU_TFSR_FFLAG3		(1 << 3)
+#define TCU_TFSR_FFLAG2		(1 << 2)
+#define TCU_TFSR_FFLAG1		(1 << 1)
+#define TCU_TFSR_FFLAG0		(1 << 0)
+
+#define TCU_TFCR_HFLAG5		(1 << 21)
+#define TCU_TFCR_HFLAG4		(1 << 20)
+#define TCU_TFCR_HFLAG3		(1 << 19)
+#define TCU_TFCR_HFLAG2		(1 << 18)
+#define TCU_TFCR_HFLAG1		(1 << 17)
+#define TCU_TFCR_HFLAG0		(1 << 16)
+#define TCU_TFCR_FFLAG5		(1 << 5)
+#define TCU_TFCR_FFLAG4		(1 << 4)
+#define TCU_TFCR_FFLAG3		(1 << 3)
+#define TCU_TFCR_FFLAG2		(1 << 2)
+#define TCU_TFCR_FFLAG1		(1 << 1)
+#define TCU_TFCR_FFLAG0		(1 << 0)
+
+#define TCU_TMR_HMASK5		(1 << 21)
+#define TCU_TMR_HMASK4		(1 << 20)
+#define TCU_TMR_HMASK3		(1 << 19)
+#define TCU_TMR_HMASK2		(1 << 18)
+#define TCU_TMR_HMASK1		(1 << 17)
+#define TCU_TMR_HMASK0		(1 << 16)
+#define TCU_TMR_FMASK5		(1 << 5)
+#define TCU_TMR_FMASK4		(1 << 4)
+#define TCU_TMR_FMASK3		(1 << 3)
+#define TCU_TMR_FMASK2		(1 << 2)
+#define TCU_TMR_FMASK1		(1 << 1)
+#define TCU_TMR_FMASK0		(1 << 0)
+
+#define TCU_TMSR_HMST5		(1 << 21)
+#define TCU_TMSR_HMST4		(1 << 20)
+#define TCU_TMSR_HMST3		(1 << 19)
+#define TCU_TMSR_HMST2		(1 << 18)
+#define TCU_TMSR_HMST1		(1 << 17)
+#define TCU_TMSR_HMST0		(1 << 16)
+#define TCU_TMSR_FMST5		(1 << 5)
+#define TCU_TMSR_FMST4		(1 << 4)
+#define TCU_TMSR_FMST3		(1 << 3)
+#define TCU_TMSR_FMST2		(1 << 2)
+#define TCU_TMSR_FMST1		(1 << 1)
+#define TCU_TMSR_FMST0		(1 << 0)
+
+#define TCU_TMCR_HMCL5		(1 << 21)
+#define TCU_TMCR_HMCL4		(1 << 20)
+#define TCU_TMCR_HMCL3		(1 << 19)
+#define TCU_TMCR_HMCL2		(1 << 18)
+#define TCU_TMCR_HMCL1		(1 << 17)
+#define TCU_TMCR_HMCL0		(1 << 16)
+#define TCU_TMCR_FMCL5		(1 << 5)
+#define TCU_TMCR_FMCL4		(1 << 4)
+#define TCU_TMCR_FMCL3		(1 << 3)
+#define TCU_TMCR_FMCL2		(1 << 2)
+#define TCU_TMCR_FMCL1		(1 << 1)
+#define TCU_TMCR_FMCL0		(1 << 0)
+
+#define TCU_TSR_WDTS		(1 << 16)
+#define TCU_TSR_STOP5		(1 << 5)
+#define TCU_TSR_STOP4		(1 << 4)
+#define TCU_TSR_STOP3		(1 << 3)
+#define TCU_TSR_STOP2		(1 << 2)
+#define TCU_TSR_STOP1		(1 << 1)
+#define TCU_TSR_STOP0		(1 << 0)
+
+#define TCU_TSSR_WDTSS		(1 << 16)
+#define TCU_TSSR_STPS5		(1 << 5)
+#define TCU_TSSR_STPS4		(1 << 4)
+#define TCU_TSSR_STPS3		(1 << 3)
+#define TCU_TSSR_STPS2		(1 << 2)
+#define TCU_TSSR_STPS1		(1 << 1)
+#define TCU_TSSR_STPS0		(1 << 0)
+
+#define TCU_TSSR_WDTSC		(1 << 16)
+#define TCU_TSSR_STPC5		(1 << 5)
+#define TCU_TSSR_STPC4		(1 << 4)
+#define TCU_TSSR_STPC3		(1 << 3)
+#define TCU_TSSR_STPC2		(1 << 2)
+#define TCU_TSSR_STPC1		(1 << 1)
+#define TCU_TSSR_STPC0		(1 << 0)
+
+/* Register definition */
+#define WDT_TCSR_PRESCALE_BIT	3
+#define WDT_TCSR_PRESCALE_MASK	(0x7 << WDT_TCSR_PRESCALE_BIT)
+  #define WDT_TCSR_PRESCALE1	(0x0 << WDT_TCSR_PRESCALE_BIT)
+  #define WDT_TCSR_PRESCALE4	(0x1 << WDT_TCSR_PRESCALE_BIT)
+  #define WDT_TCSR_PRESCALE16	(0x2 << WDT_TCSR_PRESCALE_BIT)
+  #define WDT_TCSR_PRESCALE64	(0x3 << WDT_TCSR_PRESCALE_BIT)
+  #define WDT_TCSR_PRESCALE256	(0x4 << WDT_TCSR_PRESCALE_BIT)
+  #define WDT_TCSR_PRESCALE1024	(0x5 << WDT_TCSR_PRESCALE_BIT)
+#define WDT_TCSR_EXT_EN		(1 << 2)
+#define WDT_TCSR_RTC_EN		(1 << 1)
+#define WDT_TCSR_PCK_EN		(1 << 0)
+#define WDT_TCER_TCEN		(1 << 0)
+
+/*
+ * Define macros for UART_IER
+ * UART Interrupt Enable Register
+ */
+#define UART_IER_RIE	(1 << 0) /* 0: receive fifo full interrupt disable */
+#define UART_IER_TIE	(1 << 1) /* 0: transmit fifo empty interrupt disable */
+#define UART_IER_RLIE	(1 << 2) /* 0: receive line status interrupt disable */
+#define UART_IER_MIE	(1 << 3) /* 0: modem status interrupt disable */
+#define UART_IER_RTIE	(1 << 4) /* 0: receive timeout interrupt disable */
+
+/*
+ * Define macros for UART_ISR
+ * UART Interrupt Status Register
+ */
+#define UART_ISR_IP	(1 << 0) /* 0: interrupt is pending 1: no interrupt */
+#define UART_ISR_IID	(7 << 1) /* Source of Interrupt */
+#define UART_ISR_IID_MSI  (0 << 1) /* Modem status interrupt */
+#define UART_ISR_IID_THRI (1 << 1) /* Transmitter holding register empty */
+#define UART_ISR_IID_RDI  (2 << 1) /* Receiver data interrupt */
+#define UART_ISR_IID_RLSI (3 << 1) /* Receiver line status interrupt */
+/* FIFO mode select, set when UART_FCR.FE is set to 1 */
+#define UART_ISR_FFMS	(3 << 6)
+#define UART_ISR_FFMS_NO_FIFO	(0 << 6)
+#define UART_ISR_FFMS_FIFO_MODE	(3 << 6)
+
+/*
+ * Define macros for UART_FCR
+ * UART FIFO Control Register
+ */
+#define UART_FCR_FE	(1 << 0)	/* 0: non-FIFO mode  1: FIFO mode */
+#define UART_FCR_RFLS	(1 << 1)	/* write 1 to flush receive FIFO */
+#define UART_FCR_TFLS	(1 << 2)	/* write 1 to flush transmit FIFO */
+#define UART_FCR_DMS	(1 << 3)	/* 0: disable DMA mode */
+#define UART_FCR_UUE	(1 << 4)	/* 0: disable UART */
+#define UART_FCR_RTRG	(3 << 6)	/* Receive FIFO Data Trigger */
+#define UART_FCR_RTRG_1	(0 << 6)
+#define UART_FCR_RTRG_4	(1 << 6)
+#define UART_FCR_RTRG_8	(2 << 6)
+#define UART_FCR_RTRG_15	(3 << 6)
+
+/*
+ * Define macros for UART_LCR
+ * UART Line Control Register
+ */
+#define UART_LCR_WLEN	(3 << 0)	/* word length */
+#define UART_LCR_WLEN_5	(0 << 0)
+#define UART_LCR_WLEN_6	(1 << 0)
+#define UART_LCR_WLEN_7	(2 << 0)
+#define UART_LCR_WLEN_8	(3 << 0)
+#define UART_LCR_STOP	(1 << 2)
+	/* 0: 1 stop bit when word length is 5,6,7,8
+	   1: 1.5 stop bits when 5; 2 stop bits when 6,7,8 */
+#define UART_LCR_STOP_1	(0 << 2)
+	/* 0: 1 stop bit when word length is 5,6,7,8
+	   1: 1.5 stop bits when 5; 2 stop bits when 6,7,8 */
+#define UART_LCR_STOP_2	(1 << 2)
+	/* 0: 1 stop bit when word length is 5,6,7,8
+	   1: 1.5 stop bits when 5; 2 stop bits when 6,7,8 */
+
+#define UART_LCR_PE	(1 << 3) /* 0: parity disable */
+#define UART_LCR_PROE	(1 << 4) /* 0: even parity  1: odd parity */
+#define UART_LCR_SPAR	(1 << 5) /* 0: sticky parity disable */
+#define UART_LCR_SBRK	(1 << 6) /* write 0 normal, write 1 send break */
+/* 0: access UART_RDR/TDR/IER  1: access UART_DLLR/DLHR */
+#define UART_LCR_DLAB	(1 << 7)
+
+/*
+ * Define macros for UART_LSR
+ * UART Line Status Register
+ */
+/* 0: receive FIFO is empty  1: receive data is ready */
+#define UART_LSR_DR	(1 << 0)
+/* 0: no overrun error */
+#define UART_LSR_ORER	(1 << 1)
+/* 0: no parity error */
+#define UART_LSR_PER	(1 << 2)
+/* 0; no framing error */
+#define UART_LSR_FER	(1 << 3)
+/* 0: no break detected  1: receive a break signal */
+#define UART_LSR_BRK	(1 << 4)
+/* 1: transmit FIFO half "empty" */
+#define UART_LSR_TDRQ	(1 << 5)
+/* 1: transmit FIFO and shift registers empty */
+#define UART_LSR_TEMT	(1 << 6)
+/* 0: no receive error  1: receive error in FIFO mode */
+#define UART_LSR_RFER	(1 << 7)
+
+/*
+ * Define macros for UART_MCR
+ * UART Modem Control Register
+ */
+#define UART_MCR_DTR	(1 << 0) /* 0: DTR_ ouput high */
+#define UART_MCR_RTS	(1 << 1) /* 0: RTS_ output high */
+/* 0: UART_MSR.RI is set to 0 and RI_ input high */
+#define UART_MCR_OUT1	(1 << 2)
+/* 0: UART_MSR.DCD is set to 0 and DCD_ input high */
+#define UART_MCR_OUT2	(1 << 3)
+#define UART_MCR_LOOP	(1 << 4) /* 0: normal  1: loopback mode */
+#define UART_MCR_MCE	(1 << 7) /* 0: modem function is disable */
+
+/*
+ * Define macros for UART_MSR
+ * UART Modem Status Register
+ */
+#define UART_MSR_DCTS	(1 << 0) /* 0: no change on CTS_ since last read */
+#define UART_MSR_DDSR	(1 << 1) /* 0: no change on DSR_ since last read */
+#define UART_MSR_DRI	(1 << 2) /* 0: no change on RI_  since last read */
+#define UART_MSR_DDCD	(1 << 3) /* 0: no change on DCD_ since last read */
+#define UART_MSR_CTS	(1 << 4) /* 0: CTS_ pin is high */
+#define UART_MSR_DSR	(1 << 5) /* 0: DSR_ pin is high */
+#define UART_MSR_RI	(1 << 6) /* 0: RI_ pin is high */
+#define UART_MSR_DCD	(1 << 7) /* 0: DCD_ pin is high */
+
+/*
+ * Define macros for SIRCR
+ * Slow IrDA Control Register
+ */
+#define SIRCR_TSIRE (1 << 0) /* 0: TX is in UART mode 1: IrDA mode */
+#define SIRCR_RSIRE (1 << 1) /* 0: RX is in UART mode 1: IrDA mode */
+#define SIRCR_TPWS  (1 << 2) /* 0: transmit 0 pulse width is 3/16 of bit length
+				1: 0 pulse width is 1.6us for 115.2Kbps */
+#define SIRCR_TXPL  (1 << 3) /* 0: encoder generates a positive pulse for 0 */
+#define SIRCR_RXPL  (1 << 4) /* 0: decoder interprets positive pulse as 0 */
+
+/* MSC Clock and Control Register (MSC_STRPCL) */
+#define MSC_STRPCL_EXIT_MULTIPLE	(1 << 7)
+#define MSC_STRPCL_EXIT_TRANSFER	(1 << 6)
+#define MSC_STRPCL_START_READWAIT	(1 << 5)
+#define MSC_STRPCL_STOP_READWAIT	(1 << 4)
+#define MSC_STRPCL_RESET		(1 << 3)
+#define MSC_STRPCL_START_OP		(1 << 2)
+#define MSC_STRPCL_CLOCK_CONTROL_BIT	0
+#define MSC_STRPCL_CLOCK_CONTROL_MASK	(0x3 << MSC_STRPCL_CLOCK_CONTROL_BIT)
+#define MSC_STRPCL_CLOCK_CONTROL_STOP	(0x1 << MSC_STRPCL_CLOCK_CONTROL_BIT)
+#define MSC_STRPCL_CLOCK_CONTROL_START	(0x2 << MSC_STRPCL_CLOCK_CONTROL_BIT)
+
+/* MSC Status Register (MSC_STAT) */
+#define MSC_STAT_IS_RESETTING		(1 << 15)
+#define MSC_STAT_SDIO_INT_ACTIVE	(1 << 14)
+#define MSC_STAT_PRG_DONE		(1 << 13)
+#define MSC_STAT_DATA_TRAN_DONE		(1 << 12)
+#define MSC_STAT_END_CMD_RES		(1 << 11)
+#define MSC_STAT_DATA_FIFO_AFULL	(1 << 10)
+#define MSC_STAT_IS_READWAIT		(1 << 9)
+#define MSC_STAT_CLK_EN			(1 << 8)
+#define MSC_STAT_DATA_FIFO_FULL		(1 << 7)
+#define MSC_STAT_DATA_FIFO_EMPTY	(1 << 6)
+#define MSC_STAT_CRC_RES_ERR		(1 << 5)
+#define MSC_STAT_CRC_READ_ERROR		(1 << 4)
+#define MSC_STAT_CRC_WRITE_ERROR_BIT	2
+#define MSC_STAT_CRC_WRITE_ERROR_MASK	(0x3 << MSC_STAT_CRC_WRITE_ERROR_BIT)
+/* No error on transmission of data */
+  #define MSC_STAT_CRC_WRITE_ERROR_NO	(0 << MSC_STAT_CRC_WRITE_ERROR_BIT)
+/* Card observed erroneous transmission of data */
+  #define MSC_STAT_CRC_WRITE_ERROR	(1 << MSC_STAT_CRC_WRITE_ERROR_BIT)
+/* No CRC status is sent back */
+  #define MSC_STAT_CRC_WRITE_ERROR_NOSTS (2 << MSC_STAT_CRC_WRITE_ERROR_BIT)
+#define MSC_STAT_TIME_OUT_RES		(1 << 1)
+#define MSC_STAT_TIME_OUT_READ		(1 << 0)
+
+/* MSC Bus Clock Control Register (MSC_CLKRT) */
+#define MSC_CLKRT_CLK_RATE_BIT		0
+#define MSC_CLKRT_CLK_RATE_MASK		(0x7 << MSC_CLKRT_CLK_RATE_BIT)
+  #define MSC_CLKRT_CLK_RATE_DIV_1  (0x0 << MSC_CLKRT_CLK_RATE_BIT)
+  #define MSC_CLKRT_CLK_RATE_DIV_2  (0x1 << MSC_CLKRT_CLK_RATE_BIT)
+  #define MSC_CLKRT_CLK_RATE_DIV_4  (0x2 << MSC_CLKRT_CLK_RATE_BIT)
+  #define MSC_CLKRT_CLK_RATE_DIV_8  (0x3 << MSC_CLKRT_CLK_RATE_BIT)
+  #define MSC_CLKRT_CLK_RATE_DIV_16  (0x4 << MSC_CLKRT_CLK_RATE_BIT)
+  #define MSC_CLKRT_CLK_RATE_DIV_32  (0x5 << MSC_CLKRT_CLK_RATE_BIT)
+  #define MSC_CLKRT_CLK_RATE_DIV_64  (0x6 << MSC_CLKRT_CLK_RATE_BIT)
+  #define MSC_CLKRT_CLK_RATE_DIV_128 (0x7 << MSC_CLKRT_CLK_RATE_BIT)
+
+/* MSC Command Sequence Control Register (MSC_CMDAT) */
+#define MSC_CMDAT_IO_ABORT	(1 << 11)
+#define MSC_CMDAT_BUS_WIDTH_BIT	9
+#define MSC_CMDAT_BUS_WIDTH_MASK (0x3 << MSC_CMDAT_BUS_WIDTH_BIT)
+#define MSC_CMDAT_BUS_WIDTH_1BIT (0x0 << MSC_CMDAT_BUS_WIDTH_BIT)
+#define MSC_CMDAT_BUS_WIDTH_4BIT (0x2 << MSC_CMDAT_BUS_WIDTH_BIT)
+#define MSC_CMDAT_DMA_EN	(1 << 8)
+#define MSC_CMDAT_INIT		(1 << 7)
+#define MSC_CMDAT_BUSY		(1 << 6)
+#define MSC_CMDAT_STREAM_BLOCK	(1 << 5)
+#define MSC_CMDAT_WRITE		(1 << 4)
+#define MSC_CMDAT_READ		(0 << 4)
+#define MSC_CMDAT_DATA_EN	(1 << 3)
+#define MSC_CMDAT_RESPONSE_BIT	0
+#define MSC_CMDAT_RESPONSE_MASK	(0x7 << MSC_CMDAT_RESPONSE_BIT)
+#define MSC_CMDAT_RESPONSE_NONE	(0x0 << MSC_CMDAT_RESPONSE_BIT)
+#define MSC_CMDAT_RESPONSE_R1	(0x1 << MSC_CMDAT_RESPONSE_BIT)
+#define MSC_CMDAT_RESPONSE_R2	(0x2 << MSC_CMDAT_RESPONSE_BIT)
+#define MSC_CMDAT_RESPONSE_R3	(0x3 << MSC_CMDAT_RESPONSE_BIT)
+#define MSC_CMDAT_RESPONSE_R4	(0x4 << MSC_CMDAT_RESPONSE_BIT)
+#define MSC_CMDAT_RESPONSE_R5	(0x5 << MSC_CMDAT_RESPONSE_BIT)
+#define MSC_CMDAT_RESPONSE_R6	(0x6 << MSC_CMDAT_RESPONSE_BIT)
+
+/* MSC Interrupts Mask Register (MSC_IMASK) */
+#define MSC_IMASK_SDIO			(1 << 7)
+#define MSC_IMASK_TXFIFO_WR_REQ		(1 << 6)
+#define MSC_IMASK_RXFIFO_RD_REQ		(1 << 5)
+#define MSC_IMASK_END_CMD_RES		(1 << 2)
+#define MSC_IMASK_PRG_DONE		(1 << 1)
+#define MSC_IMASK_DATA_TRAN_DONE	(1 << 0)
+
+#ifndef __ASSEMBLY__
+/* INTC (Interrupt Controller) */
+struct jz4740_intc {
+	uint32_t isr;		/* interrupt source register */
+	uint32_t imr;		/* interrupt mask register */
+	uint32_t imsr;		/* interrupt mask set register */
+	uint32_t imcr;		/* interrupt mask clear register */
+	uint32_t ipr;		/* interrupt pending register */
+};
+
+/* RTC */
+struct jz4740_rtc {
+	uint32_t rcr;		/* rtc control register */
+	uint32_t rsr;		/* rtc second register */
+	uint32_t rsar;		/* rtc second alarm register */
+	uint32_t rgr;		/* rtc regulator register */
+	uint32_t hcr;		/* hibernate control register */
+	uint32_t hwfcr;		/* hibernate wakeup filter counter reg */
+	uint32_t hrcr;		/* hibernate reset counter reg */
+	uint32_t hwcr;		/* hibernate wakeup control register */
+	uint32_t hwrsr;		/* hibernate wakeup status reg */
+	uint32_t hspr;		/* scratch pattern register */
+};
+
+/* CPM (Clock reset and Power control Management) */
+struct jz4740_cpm {
+	uint32_t cpccr; /* 0x00 clock control reg */
+	uint32_t lcr;	/* 0x04 low power control reg */
+	uint32_t rsr;	/* 0x08 reset status reg */
+	uint32_t pad00;
+	uint32_t cppcr; /* 0x10 pll control reg */
+	uint32_t pad01[3];
+	uint32_t clkgr;	/* 0x20 clock gate reg */
+	uint32_t scr;	/* 0x24 sleep control reg */
+	uint32_t pad02[14];
+	uint32_t i2scd; /* 0x60 I2S device clock divider reg */
+	uint32_t lpcdr; /* 0x64 LCD pix clock divider reg */
+	uint32_t msccdr; /* 0x68 MSC device clock divider reg */
+	uint32_t uhccdr; /* 0x6C UHC 48M clock divider reg */
+	uint32_t uhcts; /* 0x70 UHC PHY test point reg */
+	uint32_t ssicd; /* 0x74 SSI clock divider reg */
+};
+
+/* TCU (Timer Counter Unit) */
+struct jz4740_tcu {
+	uint32_t pad00[4];
+	uint32_t ter;	/* 0x10  Timer Counter Enable Register */
+	uint32_t tesr;	/* 0x14  Timer Counter Enable Set Register */
+	uint32_t tecr;	/* 0x18  Timer Counter Enable Clear Register */
+	uint32_t tsr;	/* 0x1C  Timer Stop Register */
+	uint32_t tfr;	/* 0x20  Timer Flag Register */
+	uint32_t tfsr;	/* 0x24  Timer Flag Set Register */
+	uint32_t tfcr;	/* 0x28  Timer Flag Clear Register */
+	uint32_t tssr;	/* 0x2C  Timer Stop Set Register */
+	uint32_t tmr;	/* 0x30  Timer Mask Register */
+	uint32_t tmsr;	/* 0x34  Timer Mask Set Register */
+	uint32_t tmcr;	/* 0x38  Timer Mask Clear Register */
+	uint32_t tscr;	/* 0x3C  Timer Stop Clear Register */
+	uint32_t tdfr0;	/* 0x40  Timer Data Full Register */
+	uint32_t tdhr0;	/* 0x44  Timer Data Half Register */
+	uint32_t tcnt0;	/* 0x48  Timer Counter Register */
+	uint32_t tcsr0;	/* 0x4C  Timer Control Register */
+	uint32_t tdfr1;	/* 0x50 */
+	uint32_t tdhr1;	/* 0x54 */
+	uint32_t tcnt1;	/* 0x58 */
+	uint32_t tcsr1;	/* 0x5C */
+	uint32_t tdfr2;	/* 0x60 */
+	uint32_t tdhr2;	/* 0x64 */
+	uint32_t tcnt2;	/* 0x68 */
+	uint32_t tcsr2;	/* 0x6C */
+	uint32_t tdfr3;	/* 0x70 */
+	uint32_t tdhr3;	/* 0x74 */
+	uint32_t tcnt3;	/* 0x78 */
+	uint32_t tcsr3;	/* 0x7C */
+	uint32_t tdfr4;	/* 0x80 */
+	uint32_t tdhr4;	/* 0x84 */
+	uint32_t tcnt4;	/* 0x88 */
+	uint32_t tcsr4;	/* 0x8C */
+	uint32_t tdfr5;	/* 0x90 */
+	uint32_t tdhr5;	/* 0x94 */
+	uint32_t tcnt5;	/* 0x98 */
+	uint32_t tcsr5;	/* 0x9C */
+};
+
+/* WDT (WatchDog Timer) */
+struct jz4740_wdt {
+	uint16_t tdr; /* 0x00 watchdog timer data reg*/
+	uint16_t pad00;
+	uint8_t tcer; /* 0x04 watchdog counter enable reg*/
+	uint8_t pad01[3];
+	uint16_t tcnt; /* 0x08 watchdog timer counter*/
+	uint16_t pad02;
+	uint16_t tcsr; /* 0x0C watchdog timer control reg*/
+	uint16_t pad03;
+};
+
+struct jz4740_uart {
+	uint8_t rbr_thr_dllr;
+		/* 0x00 R  8b receive buffer reg */
+		/* 0x00 W  8b transmit hold reg */
+		/* 0x00 RW 8b divisor latch low reg */
+	uint8_t pad00[3];
+	uint8_t dlhr_ier;
+		/* 0x04 RW 8b divisor latch high reg */
+		/* 0x04 RW 8b interrupt enable reg */
+	uint8_t pad01[3];
+	uint8_t iir_fcr;
+		/* 0x08 R  8b interrupt identification reg */
+		/* 0x08 W  8b FIFO control reg */
+	uint8_t pad02[3];
+	uint8_t lcr;	/* 0x0C RW 8b Line control reg */
+	uint8_t pad03[3];
+	uint8_t mcr;	/* 0x10 RW 8b modem control reg */
+	uint8_t pad04[3];
+	uint8_t lsr;	/* 0x14 R  8b line status reg */
+	uint8_t pad05[3];
+	uint8_t msr;	/* 0x18 R  8b modem status reg */
+	uint8_t pad06[3];
+	uint8_t spr;	/* 0x1C RW 8b scratch pad reg */
+	uint8_t pad07[3];
+	uint8_t isr;	/* 0x20 RW 8b infrared selection reg */
+	uint8_t pad08[3];
+	uint8_t umr;	/* 0x24 RW 8b */
+};
+
+/* MSC */
+struct jz4740_msc {
+	uint16_t strpcl;/* 0x00 */
+	uint32_t stat;	/* 0x04 */
+	uint16_t clkrt;	/* 0x08 */
+	uint32_t cmdat;	/* 0x0C */
+	uint16_t resto;	/* 0x10 */
+	uint16_t rdto;	/* 0x14 */
+	uint16_t blklen;/* 0x18 */
+	uint16_t nob;	/* 0x1C */
+	uint16_t snob;	/* 0x20 */
+	uint16_t imask;	/* 0x24 */
+	uint16_t ireg;	/* 0x28 */
+	uint8_t  cmd;	/* 0x2C */
+	uint32_t arg;	/* 0x30 */
+	uint16_t res;	/* 0x34 */
+	uint32_t rxfifo;/* 0x38 */
+	uint32_t txfifo;/* 0x3C */
+};
+
+/* External Memory Controller */
+struct jz4740_emc {
+	uint32_t bcr; /* 0x00 BCR */
+	uint32_t pad00[3];
+	uint32_t smcr[5];
+		/* x10 Static Memory Control Register 0 */
+		/* x14 Static Memory Control Register 1 */
+		/* x18 Static Memory Control Register 2 */
+		/* x1c Static Memory Control Register 3 */
+		/* x20 Static Memory Control Register 4 */
+	uint32_t pad01[3];
+	uint32_t sacr[5];
+		/* x30 Static Memory Bank 0 Addr Config Reg */
+		/* x34 Static Memory Bank 1 Addr Config Reg */
+		/* x38 Static Memory Bank 2 Addr Config Reg */
+		/* x3c Static Memory Bank 3 Addr Config Reg */
+		/* x40 Static Memory Bank 4 Addr Config Reg */
+	uint32_t pad02[3];
+	uint32_t nfcsr; /* x050 NAND Flash Control/Status Register */
+
+	uint32_t pad03[11];
+	uint32_t dmcr; /* x80 DRAM Control Register */
+	uint16_t rtcsr; /* x84 Refresh Time Control/Status Register */
+	uint16_t pad04;
+	uint16_t rtcnt; /* x88 Refresh Timer Counter */
+	uint16_t pad05;
+	uint16_t rtcor; /* x8c Refresh Time Constant Register */
+	uint16_t pad06;
+	uint32_t dmar0; /* x90 SDRAM Bank 0 Addr Config Register */
+	uint32_t pad07[27];
+	uint32_t nfecr; /* x100 NAND Flash ECC Control Register */
+	uint32_t nfecc; /* x104 NAND Flash ECC Data Register */
+	uint8_t nfpar[12];
+		/* x108 NAND Flash RS Parity 0 Register */
+		/* x10c NAND Flash RS Parity 1 Register */
+		/* x110 NAND Flash RS Parity 2 Register */
+	uint32_t nfints; /* x114 NAND Flash Interrupt Status Register */
+	uint32_t nfinte; /* x118 NAND Flash Interrupt Enable Register */
+	uint32_t nferr[4];
+		/* x11c NAND Flash RS Error Report 0 Register */
+		/* x120 NAND Flash RS Error Report 1 Register */
+		/* x124 NAND Flash RS Error Report 2 Register */
+		/* x128 NAND Flash RS Error Report 3 Register */
+};
+
+#define __gpio_as_nand()			\
+do {						\
+	writel(0x02018000, GPIO_PXFUNS(1));	\
+	writel(0x02018000, GPIO_PXSELC(1));	\
+	writel(0x02018000, GPIO_PXPES(1));	\
+	writel(0x30000000, GPIO_PXFUNS(2));	\
+	writel(0x30000000, GPIO_PXSELC(2));	\
+	writel(0x30000000, GPIO_PXPES(2));	\
+	writel(0x40000000, GPIO_PXFUNC(2));	\
+	writel(0x40000000, GPIO_PXSELC(2));	\
+	writel(0x40000000, GPIO_PXDIRC(2));	\
+	writel(0x40000000, GPIO_PXPES(2));	\
+	writel(0x00400000, GPIO_PXFUNS(1));	\
+	writel(0x00400000, GPIO_PXSELC(1));	\
+} while (0)
+
+#define __gpio_as_sdram_16bit_4720()		\
+do {						\
+	writel(0x5442bfaa, GPIO_PXFUNS(0));	\
+	writel(0x5442bfaa, GPIO_PXSELC(0));	\
+	writel(0x5442bfaa, GPIO_PXPES(0));	\
+	writel(0x81f9ffff, GPIO_PXFUNS(1));	\
+	writel(0x81f9ffff, GPIO_PXSELC(1));	\
+	writel(0x81f9ffff, GPIO_PXPES(1));	\
+	writel(0x01000000, GPIO_PXFUNS(2));	\
+	writel(0x01000000, GPIO_PXSELC(2));	\
+	writel(0x01000000, GPIO_PXPES(2));	\
+} while (0)
+
+#define __gpio_as_lcd_18bit()			\
+do {						\
+	writel(0x003fffff, GPIO_PXFUNS(2));	\
+	writel(0x003fffff, GPIO_PXSELC(2));	\
+	writel(0x003fffff, GPIO_PXPES(2));	\
+} while (0)
+
+/* MSC_CMD, MSC_CLK, MSC_D0 ~ MSC_D3 */
+#define __gpio_as_msc()				\
+do {						\
+	writel(0x00003f00, GPIO_PXFUNS(3));	\
+	writel(0x00003f00, GPIO_PXSELC(3));	\
+	writel(0x00003f00, GPIO_PXPES(3));	\
+} while (0)
+
+#define __gpio_get_port(p)	(readl(GPIO_PXPIN(p)))
+
+#define __gpio_disable_pull(n)			\
+do {						\
+	unsigned int p, o;			\
+	p = (n) / 32;				\
+	o = (n) % 32;				\
+	writel((1 << o), GPIO_PXPES(p));	\
+} while (0)
+
+#define __gpio_enable_pull(n)			\
+do {						\
+	unsigned int p, o;			\
+	p = (n) / 32;				\
+	o = (n) % 32;				\
+	writel(1 << (o), GPIO_PXPEC(p));	\
+} while (0)
+
+#define __gpio_port_as_output(p, o)		\
+do {						\
+	writel(1 << (o), GPIO_PXFUNC(p));	\
+	writel(1 << (o), GPIO_PXSELC(p));	\
+	writel(1 << (o), GPIO_PXDIRS(p));	\
+} while (0)
+
+#define __gpio_port_as_input(p, o)		\
+do {						\
+	writel(1 << (o), GPIO_PXFUNC(p));	\
+	writel(1 << (o), GPIO_PXSELC(p));	\
+	writel(1 << (o), GPIO_PXDIRC(p));	\
+} while (0)
+
+#define __gpio_as_output(n)			\
+do {						\
+	unsigned int p, o;			\
+	p = (n) / 32;				\
+	o = (n) % 32;				\
+	__gpio_port_as_output(p, o);		\
+} while (0)
+
+#define __gpio_as_input(n)			\
+do {						\
+	unsigned int p, o;			\
+	p = (n) / 32;				\
+	o = (n) % 32;				\
+	__gpio_port_as_input(p, o);		\
+} while (0)
+
+#define __gpio_set_pin(n)			\
+do {						\
+	unsigned int p, o;			\
+	p = (n) / 32;				\
+	o = (n) % 32;				\
+	writel((1 << o), GPIO_PXDATS(p));	\
+} while (0)
+
+#define __gpio_clear_pin(n)			\
+do {						\
+	unsigned int p, o;			\
+	p = (n) / 32;				\
+	o = (n) % 32;				\
+	writel((1 << o), GPIO_PXDATC(p));	\
+} while (0)
+
+#define __gpio_get_pin(n)			\
+({						\
+	unsigned int p, o, v;			\
+	p = (n) / 32;				\
+	o = (n) % 32;				\
+	if (__gpio_get_port(p) & (1 << o))	\
+		v = 1;				\
+	else					\
+		v = 0;				\
+	v;					\
+})
+
+#define __gpio_as_uart0()			\
+do {						\
+	writel(0x06000000, GPIO_PXFUNS(3));	\
+	writel(0x06000000, GPIO_PXSELS(3));	\
+	writel(0x06000000, GPIO_PXPES(3));	\
+} while (0)
+
+#define __gpio_jtag_to_uart0()			\
+do {						\
+	writel(0x80000000, GPIO_PXSELS(2));	\
+} while (0)
+
+/* Clock Control Register */
+#define __cpm_get_pllm()					\
+	((readl(JZ4740_CPM_BASE + 0x10) & CPM_CPPCR_PLLM_MASK)	\
+	 >> CPM_CPPCR_PLLM_BIT)
+#define __cpm_get_plln()					\
+	((readl(JZ4740_CPM_BASE + 0x10) & CPM_CPPCR_PLLN_MASK)	\
+	 >> CPM_CPPCR_PLLN_BIT)
+#define __cpm_get_pllod()					\
+	((readl(JZ4740_CPM_BASE + 0x10) & CPM_CPPCR_PLLOD_MASK)	\
+	 >> CPM_CPPCR_PLLOD_BIT)
+#define __cpm_get_hdiv()					\
+	((readl(JZ4740_CPM_BASE + 0x00) & CPM_CPCCR_HDIV_MASK)	\
+	 >> CPM_CPCCR_HDIV_BIT)
+#define __cpm_get_pdiv()					\
+	((readl(JZ4740_CPM_BASE + 0x00) & CPM_CPCCR_PDIV_MASK)	\
+	 >> CPM_CPCCR_PDIV_BIT)
+#define __cpm_get_cdiv()					\
+	((readl(JZ4740_CPM_BASE + 0x00) & CPM_CPCCR_CDIV_MASK)	\
+	 >> CPM_CPCCR_CDIV_BIT)
+#define __cpm_get_mdiv()					\
+	((readl(JZ4740_CPM_BASE + 0x00) & CPM_CPCCR_MDIV_MASK)	\
+	 >> CPM_CPCCR_MDIV_BIT)
+
+static inline unsigned int __cpm_get_pllout(void)
+{
+	uint32_t m, n, no, pllout;
+	uint32_t od[4] = {1, 2, 2, 4};
+
+	struct jz4740_cpm *cpm = (struct jz4740_cpm *)JZ4740_CPM_BASE;
+	uint32_t cppcr = readl(&cpm->cppcr);
+
+	if ((cppcr & CPM_CPPCR_PLLEN) && !(cppcr & CPM_CPPCR_PLLBP)) {
+		m = __cpm_get_pllm() + 2;
+		n = __cpm_get_plln() + 2;
+		no = od[__cpm_get_pllod()];
+		pllout = (CONFIG_SYS_EXTAL / (n * no)) * m;
+	} else
+		pllout = CONFIG_SYS_EXTAL;
+
+	return pllout;
+}
+
+extern void pll_init(void);
+extern void sdram_init(void);
+extern void calc_clocks(void);
+extern void rtc_init(void);
+
+#endif	/* !__ASSEMBLY__ */
+#endif	/* __JZ4740_H__ */