Hello,
I'm trying to port U-Boot 2010.09 to Cogent CSB737 board. It has an
ATMEL At91SAM9263 uC and a SMSC LAN8700 PHY. U-Boot already runs quite
well, but with networking it has problems.
U-Boot detects the PHY and is able to send packages over LAN, but do not
receives any packages.
What could be the problem?
Thanks
Andreas Schimmel
Configs:
/* Ethernet */
#define CONFIG_MACB 1
#define CONFIG_RMII 1
#define CONFIG_NET_MULTI 1
#define CONFIG_NET_RETRY_COUNT 20
#define CONFIG_RESET_PHY_R 1
Source File:
#include <common.h>
#include <asm/sizes.h>
#include <asm/arch/at91sam9263.h>
#include <asm/arch/at91sam9_smc.h>
#include <asm/arch/at91_common.h>
#include <asm/arch/at91_pmc.h>
#include <asm/arch/at91_rstc.h>
#include <asm/arch/at91_matrix.h>
#include <asm/arch/at91_pio.h>
#include <asm/arch/clk.h>
#include <asm/arch/io.h>
#include <asm/arch/hardware.h>
/*
#include <lcd.h>
#include <atmel_lcdc.h>
*/
#include <dataflash.h>
#if defined(CONFIG_RESET_PHY_R) && defined(CONFIG_MACB)
#include <net.h>
#endif
#include <netdev.h>
DECLARE_GLOBAL_DATA_PTR;
#ifdef CONFIG_CMD_NAND
static void csb737_nand_hw_init(void)
{
unsigned long csa;
at91_smc_t *smc = (at91_smc_t *) AT91_SMC0_BASE;
at91_matrix_t *matrix = (at91_matrix_t *) AT91_MATRIX_BASE;
/* Enable CS3 */
csa = readl(&matrix->csa[0]) | AT91_MATRIX_CSA_EBI_CS3A;
writel(csa, &matrix->csa[0]);
/* Configure SMC CS3 for NAND/SmartMedia */
writel(AT91_SMC_SETUP_NWE(1) | AT91_SMC_SETUP_NCS_WR(1) |
AT91_SMC_SETUP_NRD(1) | AT91_SMC_SETUP_NCS_RD(1),
&smc->cs[3].setup);
writel(AT91_SMC_PULSE_NWE(3) | AT91_SMC_PULSE_NCS_WR(3) |
AT91_SMC_PULSE_NRD(3) | AT91_SMC_PULSE_NCS_RD(3),
&smc->cs[3].pulse);
writel(AT91_SMC_CYCLE_NWE(5) | AT91_SMC_CYCLE_NRD(5),
&smc->cs[3].cycle);
writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE |
AT91_SMC_MODE_EXNW_DISABLE |
#ifdef CONFIG_SYS_NAND_DBW_16
AT91_SMC_MODE_DBW_16 |
#else /* CONFIG_SYS_NAND_DBW_8 */
AT91_SMC_MODE_DBW_8 |
#endif
AT91_SMC_MODE_TDF_CYCLE(2),
&smc->cs[3].mode);
/* Configure RDY/BSY */
at91_set_pio_input(CONFIG_SYS_NAND_READY_PIN, 1);
/* Enable NandFlash */
at91_set_pio_output(CONFIG_SYS_NAND_ENABLE_PIN, 1);
}
#endif
#ifdef CONFIG_MACB
static void csb737_macb_hw_init(void)
{
unsigned long erstl;
at91_pmc_t *pmc = (at91_pmc_t *) AT91_PMC_BASE;
at91_pio_t *pio = (at91_pio_t *) AT91_PIO_BASE;
at91_rstc_t *rstc = (at91_rstc_t *) AT91_RSTC_BASE;
/*
* Disable pull-up on:
* RXDV (PC25) => PHY normal mode (not Test mode)
* ERX0 (PE25) => PHY ADDR0
* ERX1 (PE26) => PHY ADDR1 => PHYADDR = 0x0
*
* PHY has internal pull-down
*/
writel(1 << 25, &pio->pioc.pudr);
writel((1 << 25) | (1 <<26), &pio->pioe.pudr);
erstl = readl(&rstc->mr) & AT91_RSTC_MR_ERSTL_MASK;
/* Need to reset PHY -> 500ms reset */
writel(AT91_RSTC_KEY | AT91_RSTC_MR_ERSTL(0x0D) |
AT91_RSTC_MR_URSTEN, &rstc->mr);
writel(AT91_RSTC_KEY | AT91_RSTC_CR_EXTRST, &rstc->cr);
/* Wait for end hardware reset */
while (!(readl(&rstc->sr) & AT91_RSTC_SR_NRSTL))
;
/* Restore NRST value */
writel(AT91_RSTC_KEY | erstl | AT91_RSTC_MR_URSTEN, &rstc->mr);
udelay( 21 * 1000);
/* Re-enable pull-up */
writel(1 << 25, &pio->pioc.puer);
writel((1 << 25) | (1 <<26), &pio->pioe.puer);
/* Enable clock */
writel(1 << AT91SAM9263_ID_EMAC, &pmc->pcer);
at91_macb_hw_init();
}
#endif
int board_init(void)
{
/* Enable Ctrlc */
console_init_f();
/* arch number of CSB737-Board */
gd->bd->bi_arch_number = MACH_TYPE_CSB737;
/* adress of boot parameters */
gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
at91_serial_hw_init();
#ifdef CONFIG_CMD_NAND
csb737_nand_hw_init();
#endif
#ifdef CONFIG_HAS_DATAFLASH
at91_spi0_hw_init(1 << 0);
#endif
#ifdef CONFIG_MACB
csb737_macb_hw_init();
#endif
#ifdef CONFIG_USB_OHCI_NEW
at91_uhp_hw_init();
#endif
return 0;
}
int dram_init(void)
{
gd->bd->bi_dram[0].start = PHYS_SDRAM;
gd->bd->bi_dram[0].size = PHYS_SDRAM_SIZE;
return 0;
}
#ifdef CONFIG_RESET_PHY_R
void reset_phy(void)
{
}
#endif
int board_eth_init(bd_t *bis)
{
int rc = 0;
#ifdef CONFIG_MACB
rc = macb_eth_initialize(0, (void *) AT91_EMAC_BASE, 0x1F);
#endif
return rc;
}
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