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* [PATCH v3 1/3] ARM: Add CLPS711X architecture
@ 2012-10-30 16:08 Alexander Shiyan
  2012-10-30 16:08 ` [PATCH v3 2/3] ARM: clps711x: Add serial driver Alexander Shiyan
                   ` (2 more replies)
  0 siblings, 3 replies; 11+ messages in thread
From: Alexander Shiyan @ 2012-10-30 16:08 UTC (permalink / raw)
  To: barebox

This patch adds new architecture (CLPS711X) into barebox.
The core-logic functionality of the device is built around an ARM720T
processor running at clock speeds up to 90 MHz.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
---
 arch/arm/Kconfig                               |    6 +
 arch/arm/Makefile                              |    1 +
 arch/arm/mach-clps711x/Kconfig                 |    8 +
 arch/arm/mach-clps711x/Makefile                |    1 +
 arch/arm/mach-clps711x/clock.c                 |  113 ++++++++++
 arch/arm/mach-clps711x/devices.c               |   37 +++
 arch/arm/mach-clps711x/include/mach/clkdev.h   |    7 +
 arch/arm/mach-clps711x/include/mach/clps711x.h |  284 ++++++++++++++++++++++++
 arch/arm/mach-clps711x/include/mach/devices.h  |    6 +
 arch/arm/mach-clps711x/reset.c                 |   20 ++
 10 files changed, 483 insertions(+), 0 deletions(-)
 create mode 100644 arch/arm/mach-clps711x/Kconfig
 create mode 100644 arch/arm/mach-clps711x/Makefile
 create mode 100644 arch/arm/mach-clps711x/clock.c
 create mode 100644 arch/arm/mach-clps711x/devices.c
 create mode 100644 arch/arm/mach-clps711x/include/mach/clkdev.h
 create mode 100644 arch/arm/mach-clps711x/include/mach/clps711x.h
 create mode 100644 arch/arm/mach-clps711x/include/mach/devices.h
 create mode 100644 arch/arm/mach-clps711x/reset.c

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 57b3ca7..28071a5 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -31,6 +31,11 @@ config ARCH_AT91
 	select HAS_DEBUG_LL
 	select HAVE_MACH_ARM_HEAD
 
+config ARCH_CLPS711X
+	bool "Cirrus Logic EP711x/EP721x/EP731x"
+	select CLKDEV_LOOKUP
+	select CPU_32v4T
+
 config ARCH_EP93XX
 	bool "Cirrus Logic EP93xx"
 	select CPU_ARM920T
@@ -97,6 +102,7 @@ endchoice
 
 source arch/arm/cpu/Kconfig
 source arch/arm/mach-at91/Kconfig
+source arch/arm/mach-clps711x/Kconfig
 source arch/arm/mach-ep93xx/Kconfig
 source arch/arm/mach-imx/Kconfig
 source arch/arm/mach-mxs/Kconfig
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index 855043a..da80e00 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -52,6 +52,7 @@ AFLAGS   += -include asm/unified.h -msoft-float $(AFLAGS_THUMB2)
 # Machine directory name.  This list is sorted alphanumerically
 # by CONFIG_* macro name.
 machine-$(CONFIG_ARCH_AT91)		:= at91
+machine-$(CONFIG_ARCH_CLPS711X)		:= clps711x
 machine-$(CONFIG_ARCH_EP93XX)		:= ep93xx
 machine-$(CONFIG_ARCH_IMX)		:= imx
 machine-$(CONFIG_ARCH_MXS)		:= mxs
diff --git a/arch/arm/mach-clps711x/Kconfig b/arch/arm/mach-clps711x/Kconfig
new file mode 100644
index 0000000..56ca2ca
--- /dev/null
+++ b/arch/arm/mach-clps711x/Kconfig
@@ -0,0 +1,8 @@
+if ARCH_CLPS711X
+
+choice
+	prompt "Cirrus Logic EP711x/EP721x/EP731x Board Type"
+
+endchoice
+
+endif
diff --git a/arch/arm/mach-clps711x/Makefile b/arch/arm/mach-clps711x/Makefile
new file mode 100644
index 0000000..41012bc
--- /dev/null
+++ b/arch/arm/mach-clps711x/Makefile
@@ -0,0 +1 @@
+obj-y += clock.o devices.o reset.o
diff --git a/arch/arm/mach-clps711x/clock.c b/arch/arm/mach-clps711x/clock.c
new file mode 100644
index 0000000..5cafba9
--- /dev/null
+++ b/arch/arm/mach-clps711x/clock.c
@@ -0,0 +1,113 @@
+/*
+ * Copyright (C) 2012 Alexander Shiyan <shc_work@mail.ru>
+ *
+ * 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.
+ */
+
+#include <common.h>
+#include <init.h>
+#include <clock.h>
+#include <asm/io.h>
+#include <linux/clkdev.h>
+
+#include <mach/clps711x.h>
+
+struct clk {
+	unsigned long	rate;
+};
+
+static struct clk uart_clk, bus_clk;
+
+uint64_t clocksource_read(void)
+{
+	return ~readw(TC2D);
+}
+
+static struct clocksource cs = {
+	.read	= clocksource_read,
+	.mask	= CLOCKSOURCE_MASK(16),
+};
+
+unsigned long clk_get_rate(struct clk *clk)
+{
+	return clk->rate;
+}
+EXPORT_SYMBOL(clk_get_rate);
+
+int clk_enable(struct clk *clk)
+{
+	/* Do nothing */
+	return 0;
+}
+EXPORT_SYMBOL(clk_enable);
+
+void clk_disable(struct clk *clk)
+{
+	/* Do nothing */
+}
+EXPORT_SYMBOL(clk_disable);
+
+static int clocks_init(void)
+{
+	int osc, ext, pll, cpu, timer;
+	u32 tmp;
+
+	osc = 3686400;
+	ext = 13000000;
+
+	tmp = readl(PLLR) >> 24;
+	if (tmp)
+		pll = (osc * tmp) / 2;
+	else
+		pll = 73728000; /* Default value for old CPUs */
+
+	tmp = readl(SYSFLG2);
+	if (tmp & SYSFLG2_CKMODE) {
+		cpu = ext;
+		bus_clk.rate = cpu;
+	} else {
+		cpu = pll;
+		if (cpu >= 36864000)
+			bus_clk.rate = cpu / 2;
+		else
+			bus_clk.rate = 36864000 / 2;
+	}
+
+	uart_clk.rate = bus_clk.rate / 10;
+
+	if (tmp & SYSFLG2_CKMODE) {
+		tmp = readw(SYSCON2);
+		if (tmp & SYSCON2_OSTB)
+			timer = ext / 26;
+		else
+			timer = 541440;
+	} else
+		timer = cpu / 144;
+
+	tmp = readl(SYSCON1);
+	tmp &= ~SYSCON1_TC2M;	/* Free running mode */
+	tmp |= SYSCON1_TC2S;	/* High frequency source */
+	writel(tmp, SYSCON1);
+
+	clocks_calc_mult_shift(&cs.mult, &cs.shift, timer, NSEC_PER_SEC, 10);
+
+	return init_clock(&cs);
+}
+core_initcall(clocks_init);
+
+static struct clk_lookup clocks_lookups[] = {
+	CLKDEV_CON_ID("bus", &bus_clk),
+	CLKDEV_DEV_ID("clps711x_serial0", &uart_clk),
+	CLKDEV_DEV_ID("clps711x_serial1", &uart_clk),
+};
+
+static int clkdev_init(void)
+{
+	clkdev_add_table(clocks_lookups, ARRAY_SIZE(clocks_lookups));
+
+	return 0;
+}
+postcore_initcall(clkdev_init);
diff --git a/arch/arm/mach-clps711x/devices.c b/arch/arm/mach-clps711x/devices.c
new file mode 100644
index 0000000..c5fcbf2
--- /dev/null
+++ b/arch/arm/mach-clps711x/devices.c
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2012 Alexander Shiyan <shc_work@mail.ru>
+ *
+ * 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.
+ */
+
+#include <common.h>
+#include <init.h>
+
+#include <asm/io.h>
+
+#include <mach/clps711x.h>
+
+inline void _clps711x_setup_memcfg(int bank, u32 addr, u32 val)
+{
+	u32 tmp = readl(addr);
+
+	tmp &= ~(0xff << (bank * 8));
+	tmp |= val << (bank * 8);
+
+	writel(tmp, addr);
+}
+
+void clps711x_setup_memcfg(int bank, u32 val)
+{
+	switch (bank) {
+	case 0 ... 3:
+		_clps711x_setup_memcfg(bank, MEMCFG1, val);
+		break;
+	case 4 ... 7:
+		_clps711x_setup_memcfg(bank - 4, MEMCFG2, val);
+		break;
+	}
+}
diff --git a/arch/arm/mach-clps711x/include/mach/clkdev.h b/arch/arm/mach-clps711x/include/mach/clkdev.h
new file mode 100644
index 0000000..9278209
--- /dev/null
+++ b/arch/arm/mach-clps711x/include/mach/clkdev.h
@@ -0,0 +1,7 @@
+#ifndef __MACH_CLKDEV_H
+#define __MACH_CLKDEV_H
+
+#define __clk_get(clk)	({ 1; })
+#define __clk_put(clk)	do { } while (0)
+
+#endif
diff --git a/arch/arm/mach-clps711x/include/mach/clps711x.h b/arch/arm/mach-clps711x/include/mach/clps711x.h
new file mode 100644
index 0000000..048992a
--- /dev/null
+++ b/arch/arm/mach-clps711x/include/mach/clps711x.h
@@ -0,0 +1,284 @@
+/*
+ *  Hardware definitions for Cirrus Logic CLPS711X
+ *
+ *  Copyright (C) 2000 Deep Blue Solutions Ltd.
+ *  Copyright (C) 2012 Alexander Shiyan <shc_work@mail.ru>
+ *
+ * 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.
+ */
+
+#ifndef __MACH_CLPS711X_H
+#define __MACH_CLPS711X_H
+
+#define CS0_BASE		(0x00000000)
+#define CS1_BASE		(0x10000000)
+#define CS2_BASE		(0x20000000)
+#define CS3_BASE		(0x30000000)
+#define CS4_BASE		(0x40000000)
+#define CS5_BASE		(0x50000000)
+#define CS6_BASE		(0x60000000)
+#define CS7_BASE		(0x70000000)
+#define REGS_BASE		(0x80000000)
+#define SDRAM0_BASE		(0xc0000000)
+#define SDRAM1_BASE		(0xd0000000)
+
+#define PADR			(REGS_BASE + 0x0000)
+#define PBDR			(REGS_BASE + 0x0001)
+#define PCDR			(REGS_BASE + 0x0002)
+#define PDDR			(REGS_BASE + 0x0003)
+#define PADDR			(REGS_BASE + 0x0040)
+#define PBDDR			(REGS_BASE + 0x0041)
+#define PCDDR			(REGS_BASE + 0x0042)
+#define PDDDR			(REGS_BASE + 0x0043)
+#define PEDR			(REGS_BASE + 0x0083)
+#define PEDDR			(REGS_BASE + 0x00c3)
+#define SYSCON1			(REGS_BASE + 0x0100)
+#define SYSFLG1			(REGS_BASE + 0x0140)
+#define MEMCFG1			(REGS_BASE + 0x0180)
+#define MEMCFG2			(REGS_BASE + 0x01c0)
+#define DRFPR			(REGS_BASE + 0x0200)
+#define INTSR1			(REGS_BASE + 0x0240)
+#define INTMR1			(REGS_BASE + 0x0280)
+#define LCDCON			(REGS_BASE + 0x02c0)
+#define TC1D			(REGS_BASE + 0x0300)
+#define TC2D			(REGS_BASE + 0x0340)
+#define RTCDR			(REGS_BASE + 0x0380)
+#define RTCMR			(REGS_BASE + 0x03c0)
+#define PMPCON			(REGS_BASE + 0x0400)
+#define CODR			(REGS_BASE + 0x0440)
+#define UARTDR1			(REGS_BASE + 0x0480)
+#define UBRLCR1			(REGS_BASE + 0x04c0)
+#define SYNCIO			(REGS_BASE + 0x0500)
+#define PALLSW			(REGS_BASE + 0x0540)
+#define PALMSW			(REGS_BASE + 0x0580)
+#define STFCLR			(REGS_BASE + 0x05c0)
+#define BLEOI			(REGS_BASE + 0x0600)
+#define MCEOI			(REGS_BASE + 0x0640)
+#define TEOI			(REGS_BASE + 0x0680)
+#define TC1EOI			(REGS_BASE + 0x06c0)
+#define TC2EOI			(REGS_BASE + 0x0700)
+#define RTCEOI			(REGS_BASE + 0x0740)
+#define UMSEOI			(REGS_BASE + 0x0780)
+#define COEOI			(REGS_BASE + 0x07c0)
+#define HALT			(REGS_BASE + 0x0800)
+#define STDBY			(REGS_BASE + 0x0840)
+
+#define FBADDR			(REGS_BASE + 0x1000)
+#define SYSCON2			(REGS_BASE + 0x1100)
+#define SYSFLG2			(REGS_BASE + 0x1140)
+#define INTSR2			(REGS_BASE + 0x1240)
+#define INTMR2			(REGS_BASE + 0x1280)
+#define UARTDR2			(REGS_BASE + 0x1480)
+#define UBRLCR2			(REGS_BASE + 0x14c0)
+#define SS2DR			(REGS_BASE + 0x1500)
+#define SRXEOF			(REGS_BASE + 0x1600)
+#define SS2POP			(REGS_BASE + 0x16c0)
+#define KBDEOI			(REGS_BASE + 0x1700)
+
+#define DAIR			(REGS_BASE + 0x2000)
+#define DAIDR0			(REGS_BASE + 0x2040)
+#define DAIDR1			(REGS_BASE + 0x2080)
+#define DAIDR2			(REGS_BASE + 0x20c0)
+#define DAISR			(REGS_BASE + 0x2100)
+#define SYSCON3			(REGS_BASE + 0x2200)
+#define INTSR3			(REGS_BASE + 0x2240)
+#define INTMR3			(REGS_BASE + 0x2280)
+#define LEDFLSH			(REGS_BASE + 0x22c0)
+#define SDCONF			(REGS_BASE + 0x2300)
+#define SDRFPR			(REGS_BASE + 0x2340)
+#define UNIQID			(REGS_BASE + 0x2440)
+#define DAI64FS			(REGS_BASE + 0x2600)
+#define PLLW			(REGS_BASE + 0x2610)
+#define PLLR			(REGS_BASE + 0xa5a8)
+#define RANDID0			(REGS_BASE + 0x2700)
+#define RANDID1			(REGS_BASE + 0x2704)
+#define RANDID2			(REGS_BASE + 0x2708)
+#define RANDID3			(REGS_BASE + 0x270c)
+
+/* common bits: SYSCON1 / SYSCON2 */
+#define SYSCON_UARTEN		(1 << 8)
+
+#define SYSCON1_KBDSCAN(x)	((x) & 15)
+#define SYSCON1_KBDSCANMASK	(15)
+#define SYSCON1_TC1M		(1 << 4)
+#define SYSCON1_TC1S		(1 << 5)
+#define SYSCON1_TC2M		(1 << 6)
+#define SYSCON1_TC2S		(1 << 7)
+#define SYSCON1_UART1EN		SYSCON_UARTEN
+#define SYSCON1_BZTOG		(1 << 9)
+#define SYSCON1_BZMOD		(1 << 10)
+#define SYSCON1_DBGEN		(1 << 11)
+#define SYSCON1_LCDEN		(1 << 12)
+#define SYSCON1_CDENTX		(1 << 13)
+#define SYSCON1_CDENRX		(1 << 14)
+#define SYSCON1_SIREN		(1 << 15)
+#define SYSCON1_ADCKSEL(x)	(((x) & 3) << 16)
+#define SYSCON1_ADCKSEL_MASK	(3 << 16)
+#define SYSCON1_EXCKEN		(1 << 18)
+#define SYSCON1_WAKEDIS		(1 << 19)
+#define SYSCON1_IRTXM		(1 << 20)
+
+/* common bits: SYSFLG1 / SYSFLG2 */
+#define SYSFLG_UBUSY		(1 << 11)
+#define SYSFLG_URXFE		(1 << 22)
+#define SYSFLG_UTXFF		(1 << 23)
+
+#define SYSFLG1_MCDR		(1 << 0)
+#define SYSFLG1_DCDET		(1 << 1)
+#define SYSFLG1_WUDR		(1 << 2)
+#define SYSFLG1_WUON		(1 << 3)
+#define SYSFLG1_CTS		(1 << 8)
+#define SYSFLG1_DSR		(1 << 9)
+#define SYSFLG1_DCD		(1 << 10)
+#define SYSFLG1_UBUSY		SYSFLG_UBUSY
+#define SYSFLG1_NBFLG		(1 << 12)
+#define SYSFLG1_RSTFLG		(1 << 13)
+#define SYSFLG1_PFFLG		(1 << 14)
+#define SYSFLG1_CLDFLG		(1 << 15)
+#define SYSFLG1_URXFE		SYSFLG_URXFE
+#define SYSFLG1_UTXFF		SYSFLG_UTXFF
+#define SYSFLG1_CRXFE		(1 << 24)
+#define SYSFLG1_CTXFF		(1 << 25)
+#define SYSFLG1_SSIBUSY		(1 << 26)
+#define SYSFLG1_ID		(1 << 29)
+#define SYSFLG1_VERID(x)	(((x) >> 30) & 3)
+#define SYSFLG1_VERID_MASK	(3 << 30)
+
+#define SYSFLG2_SSRXOF		(1 << 0)
+#define SYSFLG2_RESVAL		(1 << 1)
+#define SYSFLG2_RESFRM		(1 << 2)
+#define SYSFLG2_SS2RXFE		(1 << 3)
+#define SYSFLG2_SS2TXFF		(1 << 4)
+#define SYSFLG2_SS2TXUF		(1 << 5)
+#define SYSFLG2_CKMODE		(1 << 6)
+#define SYSFLG2_UBUSY		SYSFLG_UBUSY
+#define SYSFLG2_URXFE		SYSFLG_URXFE
+#define SYSFLG2_UTXFF		SYSFLG_UTXFF
+
+#define LCDCON_GSEN		(1 << 30)
+#define LCDCON_GSMD		(1 << 31)
+
+#define SYSCON2_SERSEL		(1 << 0)
+#define SYSCON2_KBD6		(1 << 1)
+#define SYSCON2_DRAMZ		(1 << 2)
+#define SYSCON2_KBWEN		(1 << 3)
+#define SYSCON2_SS2TXEN		(1 << 4)
+#define SYSCON2_PCCARD1		(1 << 5)
+#define SYSCON2_PCCARD2		(1 << 6)
+#define SYSCON2_SS2RXEN		(1 << 7)
+#define SYSCON2_UART2EN		SYSCON_UARTEN
+#define SYSCON2_SS2MAEN		(1 << 9)
+#define SYSCON2_OSTB		(1 << 12)
+#define SYSCON2_CLKENSL		(1 << 13)
+#define SYSCON2_BUZFREQ		(1 << 14)
+
+/* common bits: UARTDR1 / UARTDR2 */
+#define UARTDR_FRMERR		(1 << 8)
+#define UARTDR_PARERR		(1 << 9)
+#define UARTDR_OVERR		(1 << 10)
+
+/* common bits: UBRLCR1 / UBRLCR2 */
+#define UBRLCR_BAUD_MASK	((1 << 12) - 1)
+#define UBRLCR_BREAK		(1 << 12)
+#define UBRLCR_PRTEN		(1 << 13)
+#define UBRLCR_EVENPRT		(1 << 14)
+#define UBRLCR_XSTOP		(1 << 15)
+#define UBRLCR_FIFOEN		(1 << 16)
+#define UBRLCR_WRDLEN5		(0 << 17)
+#define UBRLCR_WRDLEN6		(1 << 17)
+#define UBRLCR_WRDLEN7		(2 << 17)
+#define UBRLCR_WRDLEN8		(3 << 17)
+#define UBRLCR_WRDLEN_MASK	(3 << 17)
+
+#define SYNCIO_FRMLEN(x)	(((x) & 0x1f) << 8)
+#define SYNCIO_SMCKEN		(1 << 13)
+#define SYNCIO_TXFRMEN		(1 << 14)
+
+#define DAIR_RESERVED		(0x0404)
+#define DAIR_DAIEN		(1 << 16)
+#define DAIR_ECS		(1 << 17)
+#define DAIR_LCTM		(1 << 19)
+#define DAIR_LCRM		(1 << 20)
+#define DAIR_RCTM		(1 << 21)
+#define DAIR_RCRM		(1 << 22)
+#define DAIR_LBM		(1 << 23)
+
+#define DAIDR2_FIFOEN		(1 << 15)
+#define DAIDR2_FIFOLEFT		(0x0d << 16)
+#define DAIDR2_FIFORIGHT	(0x11 << 16)
+
+#define DAISR_RCTS		(1 << 0)
+#define DAISR_RCRS		(1 << 1)
+#define DAISR_LCTS		(1 << 2)
+#define DAISR_LCRS		(1 << 3)
+#define DAISR_RCTU		(1 << 4)
+#define DAISR_RCRO		(1 << 5)
+#define DAISR_LCTU		(1 << 6)
+#define DAISR_LCRO		(1 << 7)
+#define DAISR_RCNF		(1 << 8)
+#define DAISR_RCNE		(1 << 9)
+#define DAISR_LCNF		(1 << 10)
+#define DAISR_LCNE		(1 << 11)
+#define DAISR_FIFO		(1 << 12)
+
+#define DAI64FS_I2SF64		(1 << 0)
+#define DAI64FS_AUDIOCLKEN	(1 << 1)
+#define DAI64FS_AUDIOCLKSRC	(1 << 2)
+#define DAI64FS_MCLK256EN	(1 << 3)
+#define DAI64FS_LOOPBACK	(1 << 5)
+#define DAI64FS_AUDIV_MASK	(0x7f)
+#define DAI64FS_AUDIV(x)	(((x) & DAI64FS_AUDIV_MASK) << 8)
+
+#define SYSCON3_ADCCON		(1 << 0)
+#define SYSCON3_CLKCTL0		(1 << 1)
+#define SYSCON3_CLKCTL1		(1 << 2)
+#define SYSCON3_DAISEL		(1 << 3)
+#define SYSCON3_ADCCKNSEN	(1 << 4)
+#define SYSCON3_VERSN(x)	(((x) >> 5) & 7)
+#define SYSCON3_VERSN_MASK	(7 << 5)
+#define SYSCON3_FASTWAKE	(1 << 8)
+#define SYSCON3_DAIEN		(1 << 9)
+#define SYSCON3_128FS		SYSCON3_DAIEN
+#define SYSCON3_ENPD67		(1 << 10)
+
+#define SDCONF_ACTIVE		(1 << 10)
+#define SDCONF_CLKCTL		(1 << 9)
+#define SDCONF_WIDTH_4		(0 << 7)
+#define SDCONF_WIDTH_8		(1 << 7)
+#define SDCONF_WIDTH_16		(2 << 7)
+#define SDCONF_WIDTH_32		(3 << 7)
+#define SDCONF_SIZE_16		(0 << 5)
+#define SDCONF_SIZE_64		(1 << 5)
+#define SDCONF_SIZE_128		(2 << 5)
+#define SDCONF_SIZE_256		(3 << 5)
+#define SDCONF_CASLAT_2		(2)
+#define SDCONF_CASLAT_3		(3)
+
+#define MEMCFG_BUS_WIDTH_32	(1)
+#define MEMCFG_BUS_WIDTH_16	(0)
+#define MEMCFG_BUS_WIDTH_8	(3)
+
+#define MEMCFG_SQAEN		(1 << 6)
+#define MEMCFG_CLKENB		(1 << 7)
+
+#define MEMCFG_WAITSTATE_8_3	(0 << 2)
+#define MEMCFG_WAITSTATE_7_3	(1 << 2)
+#define MEMCFG_WAITSTATE_6_3	(2 << 2)
+#define MEMCFG_WAITSTATE_5_3	(3 << 2)
+#define MEMCFG_WAITSTATE_4_2	(4 << 2)
+#define MEMCFG_WAITSTATE_3_2	(5 << 2)
+#define MEMCFG_WAITSTATE_2_2	(6 << 2)
+#define MEMCFG_WAITSTATE_1_2	(7 << 2)
+#define MEMCFG_WAITSTATE_8_1	(8 << 2)
+#define MEMCFG_WAITSTATE_7_1	(9 << 2)
+#define MEMCFG_WAITSTATE_6_1	(10 << 2)
+#define MEMCFG_WAITSTATE_5_1	(11 << 2)
+#define MEMCFG_WAITSTATE_4_0	(12 << 2)
+#define MEMCFG_WAITSTATE_3_0	(13 << 2)
+#define MEMCFG_WAITSTATE_2_0	(14 << 2)
+#define MEMCFG_WAITSTATE_1_0	(15 << 2)
+
+#endif
diff --git a/arch/arm/mach-clps711x/include/mach/devices.h b/arch/arm/mach-clps711x/include/mach/devices.h
new file mode 100644
index 0000000..7e5eaf9
--- /dev/null
+++ b/arch/arm/mach-clps711x/include/mach/devices.h
@@ -0,0 +1,6 @@
+#ifndef __MACH_DEVICES_H
+#define __MACH_DEVICES_H
+
+void clps711x_setup_memcfg(int bank, u32 val);
+
+#endif
diff --git a/arch/arm/mach-clps711x/reset.c b/arch/arm/mach-clps711x/reset.c
new file mode 100644
index 0000000..312fc9e
--- /dev/null
+++ b/arch/arm/mach-clps711x/reset.c
@@ -0,0 +1,20 @@
+/*
+ * Copyright (C) 2012 Alexander Shiyan <shc_work@mail.ru>
+ *
+ * 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.
+ */
+
+#include <common.h>
+#include <asm/barebox-arm-head.h>
+
+void __noreturn reset_cpu(unsigned long addr)
+{
+	common_reset();
+
+	asm("mov pc, #0");
+
+	hang();
+}
-- 
1.7.8.6


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^ permalink raw reply	[flat|nested] 11+ messages in thread
* [PATCH v3 2/3] ARM: clps711x: Add serial driver
  2012-10-30 16:08 [PATCH v3 1/3] ARM: Add CLPS711X architecture Alexander Shiyan
@ 2012-10-30 16:08 ` Alexander Shiyan
  2012-10-30 16:08 ` [PATCH v3 3/3] ARM: clps711x: Add generic board support (CLEP7212) Alexander Shiyan
  2012-10-31 21:36 ` [PATCH v3 1/3] ARM: Add CLPS711X architecture Sascha Hauer
  2 siblings, 0 replies; 11+ messages in thread
From: Alexander Shiyan @ 2012-10-30 16:08 UTC (permalink / raw)
  To: barebox


Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
---
 arch/arm/mach-clps711x/devices.c              |   60 ++++++++++
 arch/arm/mach-clps711x/include/mach/devices.h |    1 +
 drivers/serial/Kconfig                        |    5 +
 drivers/serial/Makefile                       |    1 +
 drivers/serial/serial_clps711x.c              |  156 +++++++++++++++++++++++++
 5 files changed, 223 insertions(+), 0 deletions(-)
 create mode 100644 drivers/serial/serial_clps711x.c

diff --git a/arch/arm/mach-clps711x/devices.c b/arch/arm/mach-clps711x/devices.c
index c5fcbf2..08f27d2 100644
--- a/arch/arm/mach-clps711x/devices.c
+++ b/arch/arm/mach-clps711x/devices.c
@@ -35,3 +35,63 @@ void clps711x_setup_memcfg(int bank, u32 val)
 		break;
 	}
 }
+
+static struct resource uart0_resources[] = {
+	{
+		.start	= UBRLCR1,
+		.end	= UBRLCR1,
+		.flags	= IORESOURCE_MEM,
+	},
+	{
+		.start	= SYSCON1,
+		.end	= SYSCON1,
+		.flags	= IORESOURCE_MEM,
+	},
+	{
+		.start	= SYSFLG1,
+		.end	= SYSFLG1,
+		.flags	= IORESOURCE_MEM,
+	},
+	{
+		.start	= UARTDR1,
+		.end	= UARTDR1,
+		.flags	= IORESOURCE_MEM,
+	},
+};
+
+static struct resource uart1_resources[] = {
+	{
+		.start	= UBRLCR2,
+		.end	= UBRLCR2,
+		.flags	= IORESOURCE_MEM,
+	},
+	{
+		.start	= SYSCON2,
+		.end	= SYSCON2,
+		.flags	= IORESOURCE_MEM,
+	},
+	{
+		.start	= SYSFLG2,
+		.end	= SYSFLG2,
+		.flags	= IORESOURCE_MEM,
+	},
+	{
+		.start	= UARTDR2,
+		.end	= UARTDR2,
+		.flags	= IORESOURCE_MEM,
+	},
+};
+
+void clps711x_add_uart(unsigned int id)
+{
+	switch (id) {
+	case 0:
+		add_generic_device_res("clps711x_serial", 0, uart0_resources,
+				       ARRAY_SIZE(uart0_resources), NULL);
+		break;
+	case 1:
+		add_generic_device_res("clps711x_serial", 1, uart1_resources,
+				       ARRAY_SIZE(uart1_resources), NULL);
+		break;
+	}
+}
diff --git a/arch/arm/mach-clps711x/include/mach/devices.h b/arch/arm/mach-clps711x/include/mach/devices.h
index 7e5eaf9..18a251a 100644
--- a/arch/arm/mach-clps711x/include/mach/devices.h
+++ b/arch/arm/mach-clps711x/include/mach/devices.h
@@ -2,5 +2,6 @@
 #define __MACH_DEVICES_H
 
 void clps711x_setup_memcfg(int bank, u32 val);
+void clps711x_add_uart(unsigned int id);
 
 #endif
diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig
index 7eb96ed..02bc8bf 100644
--- a/drivers/serial/Kconfig
+++ b/drivers/serial/Kconfig
@@ -43,6 +43,11 @@ config DRIVER_SERIAL_BLACKFIN
 	default y
 	bool "Blackfin serial driver"
 
+config DRIVER_SERIAL_CLPS711X
+	depends on ARCH_CLPS711X
+	default y
+	bool "CLPS711X serial driver"
+
 config DRIVER_SERIAL_ALTERA
 	depends on NIOS2
 	default y
diff --git a/drivers/serial/Makefile b/drivers/serial/Makefile
index e2d56b9..e6f1e22 100644
--- a/drivers/serial/Makefile
+++ b/drivers/serial/Makefile
@@ -13,6 +13,7 @@ obj-$(CONFIG_DRIVER_SERIAL_NETX)		+= serial_netx.o
 obj-$(CONFIG_DRIVER_SERIAL_LINUX_CONSOLE)	+= linux_console.o
 obj-$(CONFIG_DRIVER_SERIAL_MPC5XXX)		+= serial_mpc5xxx.o
 obj-$(CONFIG_DRIVER_SERIAL_BLACKFIN)		+= serial_blackfin.o
+obj-$(CONFIG_DRIVER_SERIAL_CLPS711X)		+= serial_clps711x.o
 obj-$(CONFIG_DRIVER_SERIAL_NS16550)		+= serial_ns16550.o
 obj-$(CONFIG_DRIVER_SERIAL_PL010)		+= serial_pl010.o
 obj-$(CONFIG_DRIVER_SERIAL_S3C)			+= serial_s3c.o
diff --git a/drivers/serial/serial_clps711x.c b/drivers/serial/serial_clps711x.c
new file mode 100644
index 0000000..fdc8526
--- /dev/null
+++ b/drivers/serial/serial_clps711x.c
@@ -0,0 +1,156 @@
+/*
+ * Simple CLPS711X serial driver
+ *
+ * (C) Copyright 2012 Alexander Shiyan <shc_work@mail.ru>
+ *
+ * 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.
+ */
+
+#include <common.h>
+#include <malloc.h>
+#include <init.h>
+#include <io.h>
+#include <linux/clk.h>
+
+#include <mach/clps711x.h>
+
+struct clps711x_uart {
+	void __iomem		*UBRLCR;
+	void __iomem		*SYSCON;
+	void __iomem		*SYSFLG;
+	void __iomem		*UARTDR;
+	struct clk		*uart_clk;
+	struct console_device	cdev;
+};
+
+static int clps711x_setbaudrate(struct console_device *cdev, int baudrate)
+{
+	struct clps711x_uart *s = cdev->dev->priv;
+	int divisor;
+	u32 tmp;
+
+	divisor = (clk_get_rate(s->uart_clk) / 16) / baudrate;
+
+	tmp = readl(s->UBRLCR) & ~UBRLCR_BAUD_MASK;
+	tmp |= divisor - 1;
+	writel(tmp, s->UBRLCR);
+
+	return 0;
+}
+
+static void clps711x_init_port(struct console_device *cdev)
+{
+	struct clps711x_uart *s = cdev->dev->priv;
+	u32 tmp;
+
+	/* Disable the UART */
+	writel(readl(s->SYSCON) & ~SYSCON_UARTEN, s->SYSCON);
+
+	/* Setup Line Control Register */
+	tmp = readl(s->UBRLCR) & UBRLCR_BAUD_MASK;
+	tmp |= UBRLCR_FIFOEN | UBRLCR_WRDLEN8; /* FIFO on, 8N1 mode */
+	writel(tmp, s->UBRLCR);
+
+	/* Set default baudrate on initialization */
+	clps711x_setbaudrate(cdev, CONFIG_BAUDRATE);
+
+	/* Enable the UART */
+	writel(readl(s->SYSCON) | SYSCON_UARTEN, s->SYSCON);
+}
+
+static void clps711x_putc(struct console_device *cdev, char c)
+{
+	struct clps711x_uart *s = cdev->dev->priv;
+
+	/* Wait until there is space in the FIFO */
+	while (readl(s->SYSFLG) & SYSFLG_UTXFF)
+		barrier();
+
+	/* Send the character */
+	writew(c, s->UARTDR);
+}
+
+static int clps711x_getc(struct console_device *cdev)
+{
+	struct clps711x_uart *s = cdev->dev->priv;
+	u16 data;
+
+	/* Wait until there is data in the FIFO */
+	while (readl(s->SYSFLG) & SYSFLG_URXFE)
+		barrier();
+
+	data = readw(s->UARTDR);
+
+	/* Check for an error flag */
+	if (data & (UARTDR_FRMERR | UARTDR_PARERR | UARTDR_OVERR))
+		return -1;
+
+	return (int)data;
+}
+
+static int clps711x_tstc(struct console_device *cdev)
+{
+	struct clps711x_uart *s = cdev->dev->priv;
+
+	return !(readl(s->SYSFLG) & SYSFLG_URXFE);
+}
+
+static void clps711x_flush(struct console_device *cdev)
+{
+	struct clps711x_uart *s = cdev->dev->priv;
+
+	while (readl(s->SYSFLG) & SYSFLG_UBUSY)
+		barrier();
+}
+
+static int clps711x_probe(struct device_d *dev)
+{
+	struct clps711x_uart *s;
+
+	BUG_ON(dev->num_resources != 4);
+
+	s = xzalloc(sizeof(struct clps711x_uart));
+	s->uart_clk = clk_get(dev, NULL);
+	BUG_ON(!s->uart_clk);
+
+	s->UBRLCR = dev_get_mem_region(dev, 0);
+	s->SYSCON = dev_get_mem_region(dev, 1);
+	s->SYSFLG = dev_get_mem_region(dev, 2);
+	s->UARTDR = dev_get_mem_region(dev, 3);
+
+	dev->priv	= s;
+	s->cdev.dev	= dev;
+	s->cdev.f_caps	= CONSOLE_STDIN | CONSOLE_STDOUT | CONSOLE_STDERR;
+	s->cdev.tstc	= clps711x_tstc;
+	s->cdev.putc	= clps711x_putc;
+	s->cdev.getc	= clps711x_getc;
+	s->cdev.flush	= clps711x_flush;
+	s->cdev.setbrg	= clps711x_setbaudrate;
+	clps711x_init_port(&s->cdev);
+
+	return console_register(&s->cdev);
+}
+
+static void clps711x_remove(struct device_d *dev)
+{
+	struct clps711x_uart *s = dev->priv;
+
+	clps711x_flush(&s->cdev);
+	console_unregister(&s->cdev);
+	free(s);
+}
+
+static struct driver_d clps711x_driver = {
+	.name	= "clps711x_serial",
+	.probe	= clps711x_probe,
+	.remove	= clps711x_remove,
+};
+
+static int clps711x_init(void)
+{
+	return platform_driver_register(&clps711x_driver);
+}
+console_initcall(clps711x_init);
-- 
1.7.8.6


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barebox mailing list
barebox@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/barebox

^ permalink raw reply	[flat|nested] 11+ messages in thread
* [PATCH v3 3/3] ARM: clps711x: Add generic board support (CLEP7212)
  2012-10-30 16:08 [PATCH v3 1/3] ARM: Add CLPS711X architecture Alexander Shiyan
  2012-10-30 16:08 ` [PATCH v3 2/3] ARM: clps711x: Add serial driver Alexander Shiyan
@ 2012-10-30 16:08 ` Alexander Shiyan
  2012-10-31 21:36 ` [PATCH v3 1/3] ARM: Add CLPS711X architecture Sascha Hauer
  2 siblings, 0 replies; 11+ messages in thread
From: Alexander Shiyan @ 2012-10-30 16:08 UTC (permalink / raw)
  To: barebox

This patch adds generic board support (CLEP7212, Linux ARM ID=91)
for CLPS711X-target.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
---
 arch/arm/Makefile                               |    1 +
 arch/arm/boards/clep7212/Makefile               |    1 +
 arch/arm/boards/clep7212/clep7212.c             |   64 +++++++++++++++++++++++
 arch/arm/boards/clep7212/config.h               |    4 ++
 arch/arm/boards/clep7212/env/bin/mtdparts-add   |   21 +++++++
 arch/arm/boards/clep7212/env/boot/nor           |    9 +++
 arch/arm/boards/clep7212/env/init/automount     |    6 ++
 arch/arm/boards/clep7212/env/init/bootargs-base |    8 +++
 arch/arm/boards/clep7212/env/init/general       |   12 ++++
 arch/arm/boards/clep7212/env/init/hostname      |    8 +++
 arch/arm/boards/clep7212/lowlevel.c             |   56 ++++++++++++++++++++
 arch/arm/configs/clps711x_defconfig             |   42 +++++++++++++++
 arch/arm/mach-clps711x/Kconfig                  |   18 ++++++
 13 files changed, 250 insertions(+), 0 deletions(-)
 create mode 100644 arch/arm/boards/clep7212/Makefile
 create mode 100644 arch/arm/boards/clep7212/clep7212.c
 create mode 100644 arch/arm/boards/clep7212/config.h
 create mode 100644 arch/arm/boards/clep7212/env/bin/mtdparts-add
 create mode 100644 arch/arm/boards/clep7212/env/boot/nor
 create mode 100644 arch/arm/boards/clep7212/env/init/automount
 create mode 100644 arch/arm/boards/clep7212/env/init/bootargs-base
 create mode 100644 arch/arm/boards/clep7212/env/init/general
 create mode 100644 arch/arm/boards/clep7212/env/init/hostname
 create mode 100644 arch/arm/boards/clep7212/lowlevel.c
 create mode 100644 arch/arm/configs/clps711x_defconfig

diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index da80e00..05f9943 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -76,6 +76,7 @@ board-$(CONFIG_MACH_AT91SAM9G10EK)		:= at91sam9261ek
 board-$(CONFIG_MACH_AT91SAM9G20EK)		:= at91sam9260ek
 board-$(CONFIG_MACH_AT91SAM9X5EK)		:= at91sam9x5ek
 board-$(CONFIG_MACH_AT91SAM9M10G45EK)		:= at91sam9m10g45ek
+board-$(CONFIG_MACH_CLEP7212)			:= clep7212
 board-$(CONFIG_MACH_DSS11)			:= dss11
 board-$(CONFIG_MACH_EDB9301)			:= edb93xx
 board-$(CONFIG_MACH_EDB9302)			:= edb93xx
diff --git a/arch/arm/boards/clep7212/Makefile b/arch/arm/boards/clep7212/Makefile
new file mode 100644
index 0000000..7e58f10
--- /dev/null
+++ b/arch/arm/boards/clep7212/Makefile
@@ -0,0 +1 @@
+obj-y += clep7212.o lowlevel.o
diff --git a/arch/arm/boards/clep7212/clep7212.c b/arch/arm/boards/clep7212/clep7212.c
new file mode 100644
index 0000000..a32337f
--- /dev/null
+++ b/arch/arm/boards/clep7212/clep7212.c
@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2012 Alexander Shiyan <shc_work@mail.ru>
+ *
+ * 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.
+ */
+
+#include <common.h>
+#include <driver.h>
+#include <init.h>
+#include <partition.h>
+#include <io.h>
+#include <sizes.h>
+#include <asm/armlinux.h>
+#include <generated/mach-types.h>
+
+#include <mach/clps711x.h>
+#include <mach/devices.h>
+
+static int clps711x_mem_init(void)
+{
+	ulong memsize = get_ram_size((ulong *)SDRAM0_BASE, SZ_32M);
+
+	arm_add_mem_device("ram0", SDRAM0_BASE, memsize);
+
+	return 0;
+}
+mem_initcall(clps711x_mem_init);
+
+static int clps711x_devices_init(void)
+{
+	u32 serial_h = 0, serial_l = readl(UNIQID);
+
+	/* Setup Chipselects */
+	clps711x_setup_memcfg(0, MEMCFG_WAITSTATE_6_1 | MEMCFG_BUS_WIDTH_16);
+	clps711x_setup_memcfg(1, MEMCFG_WAITSTATE_6_1 | MEMCFG_BUS_WIDTH_8);
+	clps711x_setup_memcfg(2, MEMCFG_WAITSTATE_8_3 | MEMCFG_BUS_WIDTH_16 |
+			      MEMCFG_CLKENB);
+	clps711x_setup_memcfg(3, MEMCFG_WAITSTATE_6_1 | MEMCFG_BUS_WIDTH_32);
+
+	add_cfi_flash_device(0, CS0_BASE, SZ_32M, 0);
+
+	devfs_add_partition("nor0", 0x00000, SZ_256K, DEVFS_PARTITION_FIXED,
+			    "self0");
+	devfs_add_partition("nor0", SZ_256K, SZ_256K, DEVFS_PARTITION_FIXED,
+			    "env0");
+
+	armlinux_set_bootparams((void *)SDRAM0_BASE + 0x100);
+	armlinux_set_architecture(MACH_TYPE_CLEP7212);
+	armlinux_set_serial(((u64)serial_h << 32) | serial_l);
+
+	return 0;
+}
+device_initcall(clps711x_devices_init);
+
+static int clps711x_console_init(void)
+{
+	clps711x_add_uart(0);
+
+	return 0;
+}
+console_initcall(clps711x_console_init);
diff --git a/arch/arm/boards/clep7212/config.h b/arch/arm/boards/clep7212/config.h
new file mode 100644
index 0000000..6ae9a40
--- /dev/null
+++ b/arch/arm/boards/clep7212/config.h
@@ -0,0 +1,4 @@
+#ifndef __CONFIG_H
+#define __CONFIG_H
+
+#endif  /* __CONFIG_H */
diff --git a/arch/arm/boards/clep7212/env/bin/mtdparts-add b/arch/arm/boards/clep7212/env/bin/mtdparts-add
new file mode 100644
index 0000000..ef1bc02
--- /dev/null
+++ b/arch/arm/boards/clep7212/env/bin/mtdparts-add
@@ -0,0 +1,21 @@
+#!/bin/sh
+
+if [ "$1" = menu ]; then
+	init-menu-add-entry "$0" "Partitions"
+	exit
+fi
+
+norparts="256k(barebox),256k(bareboxenv),3584k(kernel),-(root)"
+ramparts="-(ramdisk)"
+
+if [ -e /dev/nor0 ]; then
+	addpart -n /dev/nor0 "${norparts}"
+
+	global linux.mtdparts.nor
+	global.linux.mtdparts.nor="physmap-flash.0:${norparts}"
+else
+	echo "NOR Flash not found."
+fi
+
+global linux.mtdparts.ram
+global.linux.mtdparts.ram="mtd-ram.0:${ramparts}"
diff --git a/arch/arm/boards/clep7212/env/boot/nor b/arch/arm/boards/clep7212/env/boot/nor
new file mode 100644
index 0000000..5cf1e15
--- /dev/null
+++ b/arch/arm/boards/clep7212/env/boot/nor
@@ -0,0 +1,9 @@
+#!/bin/sh
+
+if [ "$1" = menu ]; then
+	boot-menu-add-entry "$0" "NOR Flash"
+	exit
+fi
+
+global.bootm.image="/dev/kernel"
+global.linux.bootargs.dyn.root="root=/dev/mtdblock4 ro"
diff --git a/arch/arm/boards/clep7212/env/init/automount b/arch/arm/boards/clep7212/env/init/automount
new file mode 100644
index 0000000..978b964
--- /dev/null
+++ b/arch/arm/boards/clep7212/env/init/automount
@@ -0,0 +1,6 @@
+#!/bin/sh
+
+if [ "$1" = menu ]; then
+	init-menu-add-entry "$0" "Automountpoints"
+	exit
+fi
diff --git a/arch/arm/boards/clep7212/env/init/bootargs-base b/arch/arm/boards/clep7212/env/init/bootargs-base
new file mode 100644
index 0000000..ec08e39
--- /dev/null
+++ b/arch/arm/boards/clep7212/env/init/bootargs-base
@@ -0,0 +1,8 @@
+#!/bin/sh
+
+if [ "$1" = menu ]; then
+	init-menu-add-entry "$0" "Base bootargs"
+	exit
+fi
+
+global.linux.bootargs.base="earlyprintk console=ttyCL0,57600n8"
diff --git a/arch/arm/boards/clep7212/env/init/general b/arch/arm/boards/clep7212/env/init/general
new file mode 100644
index 0000000..77e6a59
--- /dev/null
+++ b/arch/arm/boards/clep7212/env/init/general
@@ -0,0 +1,12 @@
+#!/bin/sh
+
+if [ "$1" = menu ]; then
+	init-menu-add-entry "$0" "general config settings"
+	exit
+fi
+
+global.user=barebox
+global.autoboot_timeout=2
+global.boot.default=nor
+
+/env/bin/mtdparts-add
diff --git a/arch/arm/boards/clep7212/env/init/hostname b/arch/arm/boards/clep7212/env/init/hostname
new file mode 100644
index 0000000..684ee63
--- /dev/null
+++ b/arch/arm/boards/clep7212/env/init/hostname
@@ -0,0 +1,8 @@
+#!/bin/sh
+
+if [ "$1" = menu ]; then
+	init-menu-add-entry "$0" "hostname"
+	exit
+fi
+
+global.hostname=clep7212
diff --git a/arch/arm/boards/clep7212/lowlevel.c b/arch/arm/boards/clep7212/lowlevel.c
new file mode 100644
index 0000000..9b7e241
--- /dev/null
+++ b/arch/arm/boards/clep7212/lowlevel.c
@@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 2012 Alexander Shiyan <shc_work@mail.ru>
+ *
+ * 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.
+ */
+
+#include <common.h>
+#include <init.h>
+
+#include <asm/io.h>
+#include <asm/barebox-arm.h>
+#include <asm/barebox-arm-head.h>
+
+#include <mach/clps711x.h>
+
+#define MAIN_CLOCK		3686400
+#define CPU_SPEED		92160000
+#define BUS_SPEED		(CPU_SPEED / 2)
+
+#define PLL_VALUE		(((CPU_SPEED * 2) / MAIN_CLOCK) << 24)
+#define SDRAM_REFRESH_RATE	(64 * (BUS_SPEED / (8192 * 1000)))
+
+void __naked __bare_init reset(void)
+{
+	u32 tmp;
+
+	common_reset();
+
+	/* Setup base clock */
+	writel(SYSCON3_CLKCTL0 | SYSCON3_CLKCTL1, SYSCON3);
+	asm("nop");
+
+	/* Setup PLL */
+	writel(PLL_VALUE, PLLW);
+	asm("nop");
+
+	/* CLKEN select, SDRAM width=32 */
+	writel(SYSCON2_CLKENSL, SYSCON2);
+
+	/* Enable SDQM pins */
+	tmp = readl(SYSCON3);
+	tmp &= ~SYSCON3_ENPD67;
+	writel(tmp, SYSCON3);
+
+	/* Setup Refresh Rate (64ms 8K Blocks) */
+	writel(SDRAM_REFRESH_RATE, SDRFPR);
+
+	/* Setup SDRAM (32MB, 16Bit*2, CAS=3) */
+	writel(SDCONF_CASLAT_3 | SDCONF_SIZE_256 | SDCONF_WIDTH_16 |
+	       SDCONF_CLKCTL | SDCONF_ACTIVE, SDCONF);
+
+	board_init_lowlevel_return();
+}
diff --git a/arch/arm/configs/clps711x_defconfig b/arch/arm/configs/clps711x_defconfig
new file mode 100644
index 0000000..cf2b3b6
--- /dev/null
+++ b/arch/arm/configs/clps711x_defconfig
@@ -0,0 +1,42 @@
+CONFIG_ARCH_CLPS711X=y
+CONFIG_AEABI=y
+CONFIG_ARM_OPTIMZED_STRING_FUNCTIONS=y
+# CONFIG_MEMINFO is not set
+CONFIG_TEXT_BASE=0xc0780000
+CONFIG_EXPERIMENTAL=y
+CONFIG_BAUDRATE=57600
+CONFIG_CMDLINE_EDITING=y
+CONFIG_AUTO_COMPLETE=y
+CONFIG_DEFAULT_ENVIRONMENT_COMPRESSED_LZO=y
+CONFIG_DEFAULT_ENVIRONMENT_GENERIC_NEW=y
+CONFIG_DEFAULT_ENVIRONMENT_PATH="arch/arm/boards/clep7212/env"
+CONFIG_CMD_EDIT=y
+CONFIG_CMD_SAVEENV=y
+CONFIG_CMD_EXPORT=y
+CONFIG_CMD_PRINTENV=y
+CONFIG_CMD_ECHO_E=y
+CONFIG_CMD_IOMEM=y
+CONFIG_CMD_CRC=y
+CONFIG_CMD_CRC_CMP=y
+CONFIG_CMD_FLASH=y
+CONFIG_CMD_BOOTM_SHOW_TYPE=y
+CONFIG_CMD_BOOTM_INITRD=y
+CONFIG_CMD_BOOTZ=y
+# CONFIG_CMD_BOOTU is not set
+CONFIG_CMD_RESET=y
+CONFIG_CMD_TIMEOUT=y
+CONFIG_CMD_PARTITION=y
+CONFIG_CMD_MAGICVAR=y
+CONFIG_CMD_MAGICVAR_HELP=y
+# CONFIG_SPI is not set
+CONFIG_DRIVER_CFI=y
+# CONFIG_DRIVER_CFI_BANK_WIDTH_1 is not set
+# CONFIG_DRIVER_CFI_BANK_WIDTH_4 is not set
+CONFIG_MTD=y
+CONFIG_DISK=y
+CONFIG_DISK_WRITE=y
+CONFIG_DISK_INTF_PLATFORM_IDE=y
+CONFIG_FS_CRAMFS=y
+CONFIG_FS_FAT=y
+CONFIG_FS_FAT_LFN=y
+CONFIG_LZO_DECOMPRESS=y
diff --git a/arch/arm/mach-clps711x/Kconfig b/arch/arm/mach-clps711x/Kconfig
index 56ca2ca..469ca72 100644
--- a/arch/arm/mach-clps711x/Kconfig
+++ b/arch/arm/mach-clps711x/Kconfig
@@ -3,6 +3,24 @@ if ARCH_CLPS711X
 choice
 	prompt "Cirrus Logic EP711x/EP721x/EP731x Board Type"
 
+config MACH_CLEP7212
+	bool "Cirrus Logic CLEP7212"
+	select MACH_HAS_LOWLEVEL_INIT
+	select MACH_DO_LOWLEVEL_INIT
+	help
+	  Boards based on the Cirrus Logic 7212/7312 CPU.
+
 endchoice
 
+config BOARDINFO
+	default "Cirrus Logic CLEP7212" if MACH_CLEP7212
+
+config ARCH_TEXT_BASE
+	hex
+	default 0xc0780000 if MACH_CLEP7212
+
+config BAREBOX_MAX_IMAGE_SIZE
+	hex
+	default 0x00080000 if MACH_CLEP7212
+
 endif
-- 
1.7.8.6


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^ permalink raw reply	[flat|nested] 11+ messages in thread
* Re: [PATCH v3 1/3] ARM: Add CLPS711X architecture
  2012-10-30 16:08 [PATCH v3 1/3] ARM: Add CLPS711X architecture Alexander Shiyan
  2012-10-30 16:08 ` [PATCH v3 2/3] ARM: clps711x: Add serial driver Alexander Shiyan
  2012-10-30 16:08 ` [PATCH v3 3/3] ARM: clps711x: Add generic board support (CLEP7212) Alexander Shiyan
@ 2012-10-31 21:36 ` Sascha Hauer
  2012-11-01  5:20   ` Alexander Shiyan
  2 siblings, 1 reply; 11+ messages in thread
From: Sascha Hauer @ 2012-10-31 21:36 UTC (permalink / raw)
  To: Alexander Shiyan; +Cc: barebox

On Tue, Oct 30, 2012 at 08:08:30PM +0400, Alexander Shiyan wrote:
> This patch adds new architecture (CLPS711X) into barebox.
> The core-logic functionality of the device is built around an ARM720T
> processor running at clock speeds up to 90 MHz.
> 

[...]

> +++ b/arch/arm/mach-clps711x/reset.c
> @@ -0,0 +1,20 @@
> +/*
> + * Copyright (C) 2012 Alexander Shiyan <shc_work@mail.ru>
> + *
> + * 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.
> + */
> +
> +#include <common.h>
> +#include <asm/barebox-arm-head.h>
> +
> +void __noreturn reset_cpu(unsigned long addr)
> +{
> +	common_reset();

Oops. Naming the entry functions 'reset' really was a bad idea of mine.
common_reset() really is for the entry functions and should probably
rather be named common_entry(). It has nothing to do with preparing for
resetting the cpu.

> +
> +	asm("mov pc, #0");

Or is it because you do not have a real reset function and have to jump
through zero instead? Still common_reset() shouldn't be necessary. What
you may have to do here is to make sure the MMU is disabled and caches
are flushed.

Sascha


-- 
Pengutronix e.K.                           |                             |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0    |
Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |

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^ permalink raw reply	[flat|nested] 11+ messages in thread
* Re: [PATCH v3 1/3] ARM: Add CLPS711X architecture
  2012-10-31 21:36 ` [PATCH v3 1/3] ARM: Add CLPS711X architecture Sascha Hauer
@ 2012-11-01  5:20   ` Alexander Shiyan
  2012-11-01  7:32     ` Sascha Hauer
  0 siblings, 1 reply; 11+ messages in thread
From: Alexander Shiyan @ 2012-11-01  5:20 UTC (permalink / raw)
  To: Sascha Hauer; +Cc: barebox

On Wed, 31 Oct 2012 22:36:08 +0100
Sascha Hauer <s.hauer@pengutronix.de> wrote:

...
> > +
> > +	asm("mov pc, #0");
> 
> Or is it because you do not have a real reset function and have to jump
> through zero instead? Still common_reset() shouldn't be necessary. What
Yes.
> you may have to do here is to make sure the MMU is disabled and caches
> are flushed.
Yes. This call was be added for do it.
I may replace entrie function by calling start(). Is it a better way()?

-- 
Alexander Shiyan <shc_work@mail.ru>

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^ permalink raw reply	[flat|nested] 11+ messages in thread
* Re: [PATCH v3 1/3] ARM: Add CLPS711X architecture
  2012-11-01  5:20   ` Alexander Shiyan
@ 2012-11-01  7:32     ` Sascha Hauer
  2012-11-02  6:24       ` Alexander Shiyan
  0 siblings, 1 reply; 11+ messages in thread
From: Sascha Hauer @ 2012-11-01  7:32 UTC (permalink / raw)
  To: Alexander Shiyan; +Cc: barebox

On Thu, Nov 01, 2012 at 09:20:38AM +0400, Alexander Shiyan wrote:
> On Wed, 31 Oct 2012 22:36:08 +0100
> Sascha Hauer <s.hauer@pengutronix.de> wrote:
> 
> ...
> > > +
> > > +	asm("mov pc, #0");
> > 
> > Or is it because you do not have a real reset function and have to jump
> > through zero instead? Still common_reset() shouldn't be necessary. What
> Yes.
> > you may have to do here is to make sure the MMU is disabled and caches
> > are flushed.
> Yes. This call was be added for do it.
> I may replace entrie function by calling start(). Is it a better way()?

arch_shutdown() should do it.

Sascha


-- 
Pengutronix e.K.                           |                             |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0    |
Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |

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^ permalink raw reply	[flat|nested] 11+ messages in thread
* Re: [PATCH v3 1/3] ARM: Add CLPS711X architecture
  2012-11-01  7:32     ` Sascha Hauer
@ 2012-11-02  6:24       ` Alexander Shiyan
  2012-11-02  8:21         ` Sascha Hauer
  0 siblings, 1 reply; 11+ messages in thread
From: Alexander Shiyan @ 2012-11-02  6:24 UTC (permalink / raw)
  To: Sascha Hauer; +Cc: barebox

On Thu, 1 Nov 2012 08:32:51 +0100
Sascha Hauer <s.hauer@pengutronix.de> wrote:

> On Thu, Nov 01, 2012 at 09:20:38AM +0400, Alexander Shiyan wrote:
> > On Wed, 31 Oct 2012 22:36:08 +0100
> > Sascha Hauer <s.hauer@pengutronix.de> wrote:
> > 
> > ...
> > > > +
> > > > +	asm("mov pc, #0");
> > > 
> > > Or is it because you do not have a real reset function and have to jump
> > > through zero instead? Still common_reset() shouldn't be necessary. What
> > Yes.
> > > you may have to do here is to make sure the MMU is disabled and caches
> > > are flushed.
> > Yes. This call was be added for do it.
> > I may replace entrie function by calling start(). Is it a better way()?
> 
> arch_shutdown() should do it.
Well, if there are no more comments for this series, I will create a v4 with
one more forgotten fix for serial driver (IS_ERR clock check).

-- 
Alexander Shiyan <shc_work@mail.ru>

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^ permalink raw reply	[flat|nested] 11+ messages in thread
* Re: [PATCH v3 1/3] ARM: Add CLPS711X architecture
  2012-11-02  6:24       ` Alexander Shiyan
@ 2012-11-02  8:21         ` Sascha Hauer
  2012-11-02  8:44           ` Alexander Shiyan
  0 siblings, 1 reply; 11+ messages in thread
From: Sascha Hauer @ 2012-11-02  8:21 UTC (permalink / raw)
  To: Alexander Shiyan; +Cc: barebox

On Fri, Nov 02, 2012 at 10:24:19AM +0400, Alexander Shiyan wrote:
> On Thu, 1 Nov 2012 08:32:51 +0100
> Sascha Hauer <s.hauer@pengutronix.de> wrote:
> 
> > On Thu, Nov 01, 2012 at 09:20:38AM +0400, Alexander Shiyan wrote:
> > > On Wed, 31 Oct 2012 22:36:08 +0100
> > > Sascha Hauer <s.hauer@pengutronix.de> wrote:
> > > 
> > > ...
> > > > > +
> > > > > +	asm("mov pc, #0");
> > > > 
> > > > Or is it because you do not have a real reset function and have to jump
> > > > through zero instead? Still common_reset() shouldn't be necessary. What
> > > Yes.
> > > > you may have to do here is to make sure the MMU is disabled and caches
> > > > are flushed.
> > > Yes. This call was be added for do it.
> > > I may replace entrie function by calling start(). Is it a better way()?
> > 
> > arch_shutdown() should do it.
> Well, if there are no more comments for this series, I will create a v4 with
> one more forgotten fix for serial driver (IS_ERR clock check).

Fine, thanks. This should be the final one.

Two last things:

You should add pbl-y += lowlevel.o to your board Makefile. This allows
it to compile barebox as a compressed image.

You shouldn't have to overwrite env/bin/mtdparts-add. Instead this
should be called from env/init/mtdparts*

Sascha

-- 
Pengutronix e.K.                           |                             |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0    |
Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |

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^ permalink raw reply	[flat|nested] 11+ messages in thread
* Re: [PATCH v3 1/3] ARM: Add CLPS711X architecture
  2012-11-02  8:21         ` Sascha Hauer
@ 2012-11-02  8:44           ` Alexander Shiyan
  2012-11-02  8:54             ` Sascha Hauer
  0 siblings, 1 reply; 11+ messages in thread
From: Alexander Shiyan @ 2012-11-02  8:44 UTC (permalink / raw)
  To: Sascha Hauer; +Cc: barebox

On Fri, 2 Nov 2012 09:21:13 +0100
Sascha Hauer <s.hauer@pengutronix.de> wrote:

...
> > Well, if there are no more comments for this series, I will create a v4 with
> > one more forgotten fix for serial driver (IS_ERR clock check).
> 
> Fine, thanks. This should be the final one.
> 
> Two last things:
> 
> You should add pbl-y += lowlevel.o to your board Makefile. This allows
> it to compile barebox as a compressed image.
> 
> You shouldn't have to overwrite env/bin/mtdparts-add. Instead this
> should be called from env/init/mtdparts*

OK, but the changes I'll have to test, so the revised version will be in a week.
Thank you.

-- 
Alexander Shiyan <shc_work@mail.ru>

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^ permalink raw reply	[flat|nested] 11+ messages in thread
* Re: [PATCH v3 1/3] ARM: Add CLPS711X architecture
  2012-11-02  8:44           ` Alexander Shiyan
@ 2012-11-02  8:54             ` Sascha Hauer
  2012-11-02  9:06               ` Alexander Shiyan
  0 siblings, 1 reply; 11+ messages in thread
From: Sascha Hauer @ 2012-11-02  8:54 UTC (permalink / raw)
  To: Alexander Shiyan; +Cc: barebox

On Fri, Nov 02, 2012 at 12:44:43PM +0400, Alexander Shiyan wrote:
> On Fri, 2 Nov 2012 09:21:13 +0100
> Sascha Hauer <s.hauer@pengutronix.de> wrote:
> 
> ...
> > > Well, if there are no more comments for this series, I will create a v4 with
> > > one more forgotten fix for serial driver (IS_ERR clock check).
> > 
> > Fine, thanks. This should be the final one.
> > 
> > Two last things:
> > 
> > You should add pbl-y += lowlevel.o to your board Makefile. This allows
> > it to compile barebox as a compressed image.
> > 
> > You shouldn't have to overwrite env/bin/mtdparts-add. Instead this
> > should be called from env/init/mtdparts*
> 
> OK, but the changes I'll have to test, so the revised version will be in a week.
> Thank you.

If it works for you then you could fix this later so that you do not
miss the next merge window.

Sascha

-- 
Pengutronix e.K.                           |                             |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0    |
Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |

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^ permalink raw reply	[flat|nested] 11+ messages in thread
* Re: [PATCH v3 1/3] ARM: Add CLPS711X architecture
  2012-11-02  8:54             ` Sascha Hauer
@ 2012-11-02  9:06               ` Alexander Shiyan
  0 siblings, 0 replies; 11+ messages in thread
From: Alexander Shiyan @ 2012-11-02  9:06 UTC (permalink / raw)
  To: Sascha Hauer; +Cc: barebox

On Fri, 2 Nov 2012 09:54:12 +0100
Sascha Hauer <s.hauer@pengutronix.de> wrote:

...
> > > Two last things:
> > > 
> > > You should add pbl-y += lowlevel.o to your board Makefile. This allows
> > > it to compile barebox as a compressed image.
> > > 
> > > You shouldn't have to overwrite env/bin/mtdparts-add. Instead this
> > > should be called from env/init/mtdparts*
> > 
> > OK, but the changes I'll have to test, so the revised version will be in a week.
> > Thank you.
> 
> If it works for you then you could fix this later so that you do not
> miss the next merge window.

Understood, now prepare to send the current tested version.
Thanks one more time.

-- 
Alexander Shiyan <shc_work@mail.ru>

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^ permalink raw reply	[flat|nested] 11+ messages in thread
end of thread, other threads:[~2012-11-02  9:06 UTC | newest]

Thread overview: 11+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2012-10-30 16:08 [PATCH v3 1/3] ARM: Add CLPS711X architecture Alexander Shiyan
2012-10-30 16:08 ` [PATCH v3 2/3] ARM: clps711x: Add serial driver Alexander Shiyan
2012-10-30 16:08 ` [PATCH v3 3/3] ARM: clps711x: Add generic board support (CLEP7212) Alexander Shiyan
2012-10-31 21:36 ` [PATCH v3 1/3] ARM: Add CLPS711X architecture Sascha Hauer
2012-11-01  5:20   ` Alexander Shiyan
2012-11-01  7:32     ` Sascha Hauer
2012-11-02  6:24       ` Alexander Shiyan
2012-11-02  8:21         ` Sascha Hauer
2012-11-02  8:44           ` Alexander Shiyan
2012-11-02  8:54             ` Sascha Hauer
2012-11-02  9:06               ` Alexander Shiyan

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