[U-Boot-Users] [PATCH] CPU PPC440x5 on Virtex5 FX
Stefan Roese
sr at denx.de
Fri Jul 11 14:22:48 CEST 2008
Ricardo,
On Friday 11 July 2008, Ricardo Ribalda Delgado wrote:
> This patchs gives support for the embbedded ppc440
> on the Virtex5 FPGAs
Thanks.
Some general comments:
Please rebase your 4xx related patches on the "next" branch of my
u-boot-ppc4xx repository. I just pushed some bigger rework/cleanup patchsets
that are destined for the next merge window.
And please add "ppc4xx: " to the beginning of the patch subject and add me to
CC on 4xx related patches.
More comments below...
> ---
> cpu/ppc4xx/4xx_enet.c | 3 +-
> cpu/ppc4xx/4xx_uart.c | 3 +
> cpu/ppc4xx/cpu.c | 4 +
> cpu/ppc4xx/gpio.c | 5 +
> cpu/ppc4xx/interrupts.c | 238
> ++++++++++++++++++++++++++++++++++++------- cpu/ppc4xx/miiphy.c |
> 5 +
> cpu/ppc4xx/speed.c | 6 +-
> include/asm-ppc/processor.h | 3 +-
> net/eth.c | 3 +-
> 9 files changed, 228 insertions(+), 42 deletions(-)
>
> diff --git a/cpu/ppc4xx/4xx_enet.c b/cpu/ppc4xx/4xx_enet.c
> index 4e863dc..cf26237 100644
> --- a/cpu/ppc4xx/4xx_enet.c
> +++ b/cpu/ppc4xx/4xx_enet.c
> @@ -97,7 +97,8 @@
> * network support enabled.
> * Remark: CONFIG_405 describes Xilinx PPC405 FPGA without EMAC
> controller! */
> -#if defined(CONFIG_CMD_NET) && !defined(CONFIG_405) &&
> !defined(CONFIG_IOP480) +#if defined(CONFIG_CMD_NET) &&
> !defined(CONFIG_405) && !defined(CONFIG_IOP480) \ + &&
> !defined(CONFIG_440_VIRTEX5)
>
> #if !(defined(CONFIG_MII) || defined(CONFIG_CMD_MII))
> #error "CONFIG_MII has to be defined!"
> diff --git a/cpu/ppc4xx/4xx_uart.c b/cpu/ppc4xx/4xx_uart.c
> index a7587d4..37d3dbc 100644
> --- a/cpu/ppc4xx/4xx_uart.c
> +++ b/cpu/ppc4xx/4xx_uart.c
> @@ -48,6 +48,7 @@
> #include <watchdog.h>
> #include <asm/ppc4xx-intvec.h>
>
> +#if !defined(CONFIG_440_VIRTEX5)
You add this "#if !defined(CONFIG_440_VIRTEX5)" to many of the cpu/ppc4xx
files with this patch. I don't like this. We should let the Makefile handle
this. Perhaps something like this:
ifndef $(CONFIG_440_VIRTEX5)
COBJS += 4xx_enet.o
...
endif
> #ifdef CONFIG_SERIAL_MULTI
> #include <serial.h>
> #endif
> @@ -873,3 +874,5 @@ int serial_tstc(void)
> #endif /* CONFIG_SERIAL_MULTI */
>
> #endif /* CONFIG_405GP || CONFIG_405CR */
> +
> +#endif
> diff --git a/cpu/ppc4xx/cpu.c b/cpu/ppc4xx/cpu.c
> index 39f439d..f510cdd 100644
> --- a/cpu/ppc4xx/cpu.c
> +++ b/cpu/ppc4xx/cpu.c
> @@ -508,6 +508,10 @@ int checkcpu (void)
> puts("GT Rev. A");
> strcpy(addstr, "Security/Kasumi support");
> break;
> +
> + case PVR_VIRTEX5:
> + printf(" VIRTEX5");
> + break;
>
> default:
> printf (" UNKNOWN (PVR=%08x)", pvr);
> diff --git a/cpu/ppc4xx/gpio.c b/cpu/ppc4xx/gpio.c
> index df99f53..59159ee 100644
> --- a/cpu/ppc4xx/gpio.c
> +++ b/cpu/ppc4xx/gpio.c
> @@ -26,6 +26,9 @@
> #include <asm/io.h>
> #include <asm/gpio.h>
>
> +
> +#if !defined(CONFIG_440_VIRTEX5)
> +
Again, move this to the Makefile instead.
> #if defined(CFG_4xx_GPIO_TABLE)
> gpio_param_s const gpio_tab[GPIO_GROUP_MAX][GPIO_MAX] =
> CFG_4xx_GPIO_TABLE; #endif
> @@ -253,3 +256,5 @@ void gpio_set_chip_configuration(void)
> }
> }
> #endif /* CFG_4xx_GPIO_TABLE */
> +
> +#endif
> diff --git a/cpu/ppc4xx/interrupts.c b/cpu/ppc4xx/interrupts.c
> index 8620e2b..4648f52 100644
> --- a/cpu/ppc4xx/interrupts.c
> +++ b/cpu/ppc4xx/interrupts.c
> @@ -8,6 +8,10 @@
> * (C) Copyright 2003 (440GX port)
> * Travis B. Sawyer, Sandburst Corporation, tsawyer at sandburst.com
> *
> + * (C) Copyright 2008 (PPC440X05 port for Virtex 5 FX)
> + * Ricardo Ribalda, Universidad Autonoma de Madrid, ricardo.ribalda at uam.es
> + * Work supported by Qtechnology (htpp://qtec.com)
> + *
> * See file CREDITS for list of people who contributed to this
> * project.
> *
> @@ -41,6 +45,7 @@ DECLARE_GLOBAL_DATA_PTR;
> /*
> * Define the number of UIC's
> */
> +#if !defined(CONFIG_440_VIRTEX5)
> #if defined(CONFIG_440SPE) || \
> defined(CONFIG_460EX) || defined(CONFIG_460GT)
> #define UIC_MAX 4
> @@ -54,17 +59,23 @@ DECLARE_GLOBAL_DATA_PTR;
> #else
> #define UIC_MAX 1
> #endif
> -
> +#else
> +void xilinx_pic_enable(void);
> +#endif
> /*
> * CPM interrupt vector functions.
> */
> -struct irq_action {
> +struct irq_action {
You seem to have run Lindent on this file too, correct? Please don't do this
when you also add and/or fix something. This makes it hard to see the "real"
changes. Only run Lindent on newly created files.
> interrupt_handler_t *handler;
> void *arg;
> int count;
> };
>
> +#if !defined(CONFIG_440_VIRTEX5)
> static struct irq_action irq_vecs[UIC_MAX * 32];
> +#else
> +static struct irq_action irq_vecs[XPAR_INTC_MAX_NUM_INTR_INPUTS];
> +#endif
>
> u32 get_dcr(u16);
> void set_dcr(u16, u32);
> @@ -81,27 +92,25 @@ static __inline__ void set_evpr(unsigned long val)
> asm volatile("mtspr 0x03f,%0" : : "r" (val));
> }
>
> -#else /* !defined(CONFIG_440) */
> +#else /* !defined(CONFIG_440) */
>
> static __inline__ void set_pit(unsigned long val)
> {
> asm volatile("mtpit %0" : : "r" (val));
> }
>
> -
> static __inline__ void set_tcr(unsigned long val)
> {
> asm volatile("mttcr %0" : : "r" (val));
> }
>
> -
> static __inline__ void set_evpr(unsigned long val)
> {
> asm volatile("mtevpr %0" : : "r" (val));
> }
> -#endif /* defined(CONFIG_440 */
> +#endif /* defined(CONFIG_440 */
>
> -int interrupt_init_cpu (unsigned *decrementer_count)
> +int interrupt_init_cpu(unsigned *decrementer_count)
> {
> int vec;
> unsigned long val;
> @@ -112,7 +121,11 @@ int interrupt_init_cpu (unsigned *decrementer_count)
> /*
> * Mark all irqs as free
> */
> +#if !defined (CONFIG_440_VIRTEX5)
> for (vec = 0; vec < (UIC_MAX * 32); vec++) {
> +#else
> + for (vec = 0; vec < XPAR_INTC_MAX_NUM_INTR_INPUTS; vec++) {
> +#endif
> irq_vecs[vec].handler = NULL;
> irq_vecs[vec].arg = NULL;
> irq_vecs[vec].count = 0;
> @@ -123,19 +136,19 @@ int interrupt_init_cpu (unsigned *decrementer_count)
> * Init PIT
> */
> #if defined(CONFIG_440)
> - val = mfspr( tcr );
> - val &= (~0x04400000); /* clear DIS & ARE */
> - mtspr( tcr, val );
> - mtspr( dec, 0 ); /* Prevent exception after TSR clear*/
> - mtspr( decar, 0 ); /* clear reload */
> - mtspr( tsr, 0x08000000 ); /* clear DEC status */
> - val = gd->bd->bi_intfreq/1000; /* 1 msec */
> - mtspr( decar, val ); /* Set auto-reload value */
> - mtspr( dec, val ); /* Set inital val */
> + val = mfspr(tcr);
> + val &= (~0x04400000); /* clear DIS & ARE */
> + mtspr(tcr, val);
> + mtspr(dec, 0); /* Prevent exception after TSR clear */
> + mtspr(decar, 0); /* clear reload */
> + mtspr(tsr, 0x08000000); /* clear DEC status */
> + val = gd->bd->bi_intfreq / 1000; /* 1 msec */
> + mtspr(decar, val); /* Set auto-reload value */
> + mtspr(dec, val); /* Set inital val */
> #else
> set_pit(gd->bd->bi_intfreq / 1000);
> #endif
> -#endif /* CONFIG_4xx */
> +#endif /* CONFIG_4xx */
>
> #ifdef CONFIG_ADCIOP
> /*
> @@ -156,6 +169,8 @@ int interrupt_init_cpu (unsigned *decrementer_count)
> */
> set_evpr(0x00000000);
>
> +#if !defined (CONFIG_440_VIRTEX5)
> +
> #if !defined(CONFIG_440GX)
> #if (UIC_MAX > 1)
> /* Install the UIC1 handlers */
> @@ -170,7 +185,7 @@ int interrupt_init_cpu (unsigned *decrementer_count)
> irq_install_handler(VECNUM_UIC3NC, uic_cascade_interrupt, 0);
> irq_install_handler(VECNUM_UIC3C, uic_cascade_interrupt, 0);
> #endif
> -#else /* !defined(CONFIG_440GX) */
> +#else /* !defined(CONFIG_440GX) */
> /* Take the GX out of compatibility mode
> * Travis Sawyer, 9 Mar 2004
> * NOTE: 440gx user manual inconsistency here
> @@ -179,18 +194,27 @@ int interrupt_init_cpu (unsigned *decrementer_count)
> */
> mfsdr(sdr_mfr, val);
> val &= ~0x10000000;
> - mtsdr(sdr_mfr,val);
> + mtsdr(sdr_mfr, val);
>
> /* Enable UIC interrupts via UIC Base Enable Register */
> mtdcr(uicb0sr, UICB0_ALL);
> mtdcr(uicb0er, 0x54000000);
> /* None are critical */
> mtdcr(uicb0cr, 0);
> -#endif /* !defined(CONFIG_440GX) */
> +#endif /* !defined(CONFIG_440GX) */
> +
> +#else
> + /*
> + * Enable xilinx pic
> + */
> + xilinx_pic_enable();
> +
> +#endif
>
> return (0);
> }
>
> +#if !defined(CONFIG_440_VIRTEX5)
> /* Handler for UIC interrupt */
> static void uic_interrupt(u32 uic_base, int vec_base)
> {
> @@ -214,7 +238,7 @@ static void uic_interrupt(u32 uic_base, int vec_base)
>
> if (irq_vecs[vec].handler != NULL) {
> /* call isr */
> - (*irq_vecs[vec].handler)(irq_vecs[vec].arg);
> + (*irq_vecs[vec].handler) (irq_vecs[vec].arg);
> } else {
> set_dcr(uic_base + UIC_ER,
> get_dcr(uic_base + UIC_ER) &
> @@ -227,7 +251,8 @@ static void uic_interrupt(u32 uic_base, int vec_base)
> * After servicing the interrupt, we have to remove the
> * status indicator
> */
> - set_dcr(uic_base + UIC_SR, (0x80000000 >> (vec & 0x1f)));
> + set_dcr(uic_base + UIC_SR,
> + (0x80000000 >> (vec & 0x1f)));
> }
>
> /*
> @@ -254,10 +279,10 @@ static void uic_cascade_interrupt(void *para)
> #define UIC_BMSR uic0msr
> #define UIC_BSR uic0sr
> #endif
> -#else /* CONFIG_440 */
> +#else /* CONFIG_440 */
> #define UIC_BMSR uicmsr
> #define UIC_BSR uicsr
> -#endif /* CONFIG_440 */
> +#endif /* CONFIG_440 */
>
> /*
> * Handle external interrupts
> @@ -294,9 +319,9 @@ void external_interrupt(struct pt_regs *regs)
> if ((UICB0_UIC0CI & uic_msr) || (UICB0_UIC0NCI & uic_msr))
> uic_interrupt(UIC0_DCR_BASE, 0);
> #endif
> -#else /* CONFIG_440 */
> +#else /* CONFIG_440 */
> uic_interrupt(UIC0_DCR_BASE, 0);
> -#endif /* CONFIG_440 */
> +#endif /* CONFIG_440 */
>
> mtdcr(UIC_BSR, uic_msr);
>
> @@ -313,7 +338,8 @@ void irq_install_handler(int vec, interrupt_handler_t *
> handler, void *arg) /*
> * Print warning when replacing with a different irq vector
> */
> - if ((irq_vecs[vec].handler != NULL) && (irq_vecs[vec].handler !=
> handler)) { + if ((irq_vecs[vec].handler != NULL)
> + && (irq_vecs[vec].handler != handler)) {
> printf("Interrupt vector %d: handler 0x%x replacing 0x%x\n",
> vec, (uint) handler, (uint) irq_vecs[vec].handler);
> }
> @@ -339,7 +365,7 @@ void irq_install_handler(int vec, interrupt_handler_t *
> handler, void *arg) debug("Install interrupt for vector %d ==> %p\n", vec,
> handler); }
>
> -void irq_free_handler (int vec)
> +void irq_free_handler(int vec)
> {
> int i;
>
> @@ -365,28 +391,166 @@ void irq_free_handler (int vec)
> irq_vecs[vec].handler = NULL;
> irq_vecs[vec].arg = NULL;
> }
> +#else
> +
> +#define intc XPAR_INTC_0_BASEADDR
> +#define ISR (0*4) /* Interrupt Status Register */
> +#define IPR (1*4) /* Interrupt Pending Register */
> +#define IER (2*4) /* Interrupt Enable Register */
> +#define IAR (3*4) /* Interrupt Acknowledge Register */
> +#define SIE (4*4) /* Set Interrupt Enable bits */
> +#define CIE (5*4) /* Clear Interrupt Enable bits */
> +#define IVR (6*4) /* Interrupt Vector Register */
> +#define MER (7*4) /* Master Enable Register */
This seems to be a completely different interrupt handler than used on
IBM/AMCC PPC4xx. Please don't add this code to this file but to a new file.
Does this Xilinx interrupt controller have a name? I'll probably rename the
current interrupt.c to uic.c soon.
> +#define intc_out_be32(addr, mask) out32((addr), (mask))
> +#define intc_in_be32(addr) in32((addr))
Please don't define new accessor macros here. Use the existing ones, this
makes the code better readable.
And use out_be32()/in_be32() instead of out32()/in32().
> +void xilinx_pic_enable(void)
> +{
> +
> + printf("Xilinx PIC at 0x%8x\n", intc);
> +
> + /*
> + * Disable all external interrupts until they are
> + * explicitly requested.
> + */
> + intc_out_be32(intc + IER, 0);
> +
> + /* Acknowledge any pending interrupts just in case. */
> + intc_out_be32(intc + IAR, ~(u32) 0);
> +
> + /* Turn on the Master Enable. */
> + intc_out_be32(intc + MER, 0x3UL);
> +
> + return;
> +
> +}
> +
> +int xilinx_pic_irq_get(void)
> +{
> + u32 irq;
> + irq = intc_in_be32(intc + IVR);
> +
> + /* If no interrupt is pending then all bits of the IVR are set to 1. As
> + * the IVR is as many bits wide as numbers of inputs are available.
> + * Therefore, if all bits of the IVR are set to one, its content will
> + * be bigger than XPAR_INTC_MAX_NUM_INTR_INPUTS.
> + */
> + if (irq >= XPAR_INTC_MAX_NUM_INTR_INPUTS)
> + irq = -1; /* report no pending interrupt. */
> +
> + debug("get_irq: %d\n", irq);
> + return (irq);
> +}
> +
> +static void xilinx_pic_irq_enable(unsigned int irq)
> +{
> + unsigned long mask = (0x00000001 << (irq & 31));
> + debug("enable: %d\n", irq);
> + intc_out_be32(intc + SIE, mask);
> +}
> +
> +static void xilinx_pic_irq_disable(unsigned int irq)
> +{
> + unsigned long mask = (0x00000001 << (irq & 31));
> + debug("disable: %d\n", irq);
> + intc_out_be32(intc + CIE, mask);
> +}
> +
> +static void xilinx_pic_irq_ack(unsigned int irq)
> +{
> + unsigned long mask = (0x00000001 << (irq & 31));
> + debug("ack: %d\n", irq);
> + intc_out_be32(intc + IAR, mask);
> +}
> +
> +static void xilinx_pic_interrupt(void)
> +{
> + int irq;
> +
> + irq = xilinx_pic_irq_get();
> + if (irq < 0)
> + return;
> +
> + irq_vecs[irq].count++;
> +
> + if (irq_vecs[irq].handler != NULL) {
> + /* call isr */
> + (*irq_vecs[irq].handler) (irq_vecs[irq].arg);
> +
> + } else {
> + xilinx_pic_irq_disable(irq);
> + printf("Masking bogus interrupt %d\n", irq);
> + }
> +
> + xilinx_pic_irq_ack(irq);
> + return;
> +}
> +
> +void external_interrupt(struct pt_regs *regs)
> +{
> + xilinx_pic_interrupt();
> +}
> +
> +/*
> + * Install and free a interrupt handler.
> + */
> +void irq_install_handler(int vec, interrupt_handler_t * handler, void
> *arg) +{
> + /*
> + * Print warning when replacing with a different irq vector
> + */
> + if ((irq_vecs[vec].handler != NULL)
> + && (irq_vecs[vec].handler != handler)) {
> + printf("Interrupt vector %d: handler 0x%x replacing 0x%x\n",
> + vec, (uint) handler, (uint) irq_vecs[vec].handler);
> + }
> + irq_vecs[vec].handler = handler;
> + irq_vecs[vec].arg = arg;
> +
> + xilinx_pic_irq_enable(vec);
> +
> + debug("Install interrupt for vector %d ==> %p\n", vec, handler);
> +}
> +
> +void irq_free_handler(int vec)
> +{
> + debug("Free interrupt for vector %d ==> %p\n",
> + vec, irq_vecs[vec].handler);
> +
> + xilinx_pic_irq_disable(vec);
> +
> + irq_vecs[vec].handler = NULL;
> + irq_vecs[vec].arg = NULL;
> +}
> +
> +#endif
>
> -void timer_interrupt_cpu (struct pt_regs *regs)
> +void timer_interrupt_cpu(struct pt_regs *regs)
> {
> /* nothing to do here */
> return;
> }
>
> #if defined(CONFIG_CMD_IRQ)
> -int do_irqinfo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
> +int do_irqinfo(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
> {
> int vec;
>
> - printf ("Interrupt-Information:\n");
> - printf ("Nr Routine Arg Count\n");
> + printf("Interrupt-Information:\n");
> + printf("Nr Routine Arg Count\n");
>
> +#if !defined (CONFIG_440_VIRTEX5)
> for (vec = 0; vec < (UIC_MAX * 32); vec++) {
> +#else
> + for (vec = 0; vec < XPAR_INTC_MAX_NUM_INTR_INPUTS; vec++) {
> +#endif
> if (irq_vecs[vec].handler != NULL) {
> - printf ("%02d %08lx %08lx %d\n",
> - vec,
> - (ulong)irq_vecs[vec].handler,
> - (ulong)irq_vecs[vec].arg,
> - irq_vecs[vec].count);
> + printf("%02d %08lx %08lx %d\n",
> + vec,
> + (ulong) irq_vecs[vec].handler,
> + (ulong) irq_vecs[vec].arg, irq_vecs[vec].count);
> }
> }
>
> diff --git a/cpu/ppc4xx/miiphy.c b/cpu/ppc4xx/miiphy.c
> index c882720..172fbcd 100644
> --- a/cpu/ppc4xx/miiphy.c
> +++ b/cpu/ppc4xx/miiphy.c
> @@ -43,6 +43,9 @@
> #include <405_mal.h>
> #include <miiphy.h>
>
> +
> +#if !defined(CONFIG_440_VIRTEX5)
> +
-> Makefile.
> #if !defined(CONFIG_PHY_CLK_FREQ)
> #define CONFIG_PHY_CLK_FREQ 0
> #endif
> @@ -331,3 +334,5 @@ int emac4xx_miiphy_write (char *devname, unsigned char
> addr, unsigned char reg, {
> return emac_miiphy_command(addr, reg, EMAC_STACR_WRITE, value);
> }
> +
> +#endif
> diff --git a/cpu/ppc4xx/speed.c b/cpu/ppc4xx/speed.c
> index 34bd721..d1681e4 100644
> --- a/cpu/ppc4xx/speed.c
> +++ b/cpu/ppc4xx/speed.c
> @@ -415,7 +415,8 @@ ulong get_PCI_freq (void)
> return sys_info.freqPCI;
> }
>
> -#elif !defined(CONFIG_440GX) && !defined(CONFIG_440SP) &&
> !defined(CONFIG_440SPE) +#elif !defined(CONFIG_440GX) &&
> !defined(CONFIG_440SP) && !defined(CONFIG_440SPE)\
> + &&!defined(CONFIG_440_VIRTEX5)
> void get_sys_info (sys_info_t * sysInfo)
> {
> unsigned long strp0;
> @@ -448,6 +449,8 @@ void get_sys_info (sys_info_t * sysInfo)
> sysInfo->freqUART = sysInfo->freqPLB;
> }
> #else
> +
> +#if !defined(CONFIG_440_VIRTEX5)
> void get_sys_info (sys_info_t * sysInfo)
> {
> unsigned long strp0;
> @@ -534,6 +537,7 @@ void get_sys_info (sys_info_t * sysInfo)
> }
>
> #endif
> +#endif
>
> #if defined(CONFIG_YUCCA)
> unsigned long determine_sysper(void)
> diff --git a/include/asm-ppc/processor.h b/include/asm-ppc/processor.h
> index 10fd478..88f193a 100644
> --- a/include/asm-ppc/processor.h
> +++ b/include/asm-ppc/processor.h
> @@ -827,13 +827,12 @@
> #define PVR_7400 0x000C0000
> #define PVR_7410 0x800C0000
> #define PVR_7450 0x80000000
> -
> #define PVR_85xx 0x80200000
> #define PVR_85xx_REV1 (PVR_85xx | 0x0010)
> #define PVR_85xx_REV2 (PVR_85xx | 0x0020)
> -
Please don't remove those empty lines here.
> #define PVR_86xx 0x80040000
> #define PVR_86xx_REV1 (PVR_86xx | 0x0010)
> +#define PVR_VIRTEX5 0x7ff21912
>
> /*
> * For the 8xx processors, all of them report the same PVR family for
> diff --git a/net/eth.c b/net/eth.c
> index 7fc9aee..54b59b8 100644
> --- a/net/eth.c
> +++ b/net/eth.c
> @@ -621,7 +621,8 @@ int eth_initialize(bd_t *bis)
> at91rm9200_miiphy_initialize(bis);
> #endif
> #if defined(CONFIG_4xx) && !defined(CONFIG_IOP480) \
> - && !defined(CONFIG_AP1000) && !defined(CONFIG_405)
> + && !defined(CONFIG_AP1000) && !defined(CONFIG_405) \
> + && !defined(CONFIG_440_VIRTEX5)
> emac4xx_miiphy_initialize(bis);
> #endif
> #if defined(CONFIG_MCF52x2)
Please send this eth.c patch as a separate patch. It need to go through the
networking custodian.
Please fix and resubmit. Thanks.
Best regards,
Stefan
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