Commit 983c1db0 authored by Stelian Pop's avatar Stelian Pop Committed by Jean-Christophe PLAGNIOL-VILLARD
Browse files

Port AT91CAP9 to the new headers



Adapt the existing AT91CAP9 code to the new headers and APIs.
Signed-off-by: default avatarStelian Pop <stelian@popies.net>
parent 177e8a5a
......@@ -23,7 +23,13 @@
*/
#include <common.h>
#include <asm/arch/AT91CAP9.h>
#include <asm/arch/at91cap9.h>
#include <asm/arch/at91cap9_matrix.h>
#include <asm/arch/at91sam926x_mc.h>
#include <asm/arch/at91_pmc.h>
#include <asm/arch/at91_rstc.h>
#include <asm/arch/gpio.h>
#include <asm/arch/io.h>
#if defined(CONFIG_RESET_PHY_R) && defined(CONFIG_MACB)
#include <net.h>
#endif
......@@ -40,126 +46,106 @@ DECLARE_GLOBAL_DATA_PTR;
static void at91cap9_serial_hw_init(void)
{
#ifdef CONFIG_USART0
AT91C_BASE_PIOA->PIO_PDR = AT91C_PA22_TXD0 | AT91C_PA23_RXD0;
AT91C_BASE_PMC->PMC_PCER = 1 << AT91C_ID_US0;
at91_set_A_periph(AT91_PIN_PA22, 1); /* TXD0 */
at91_set_A_periph(AT91_PIN_PA23, 0); /* RXD0 */
at91_sys_write(AT91_PMC_PCER, 1 << AT91_ID_US0);
#endif
#ifdef CONFIG_USART1
AT91C_BASE_PIOD->PIO_PDR = AT91C_PD0_TXD1 | AT91C_PD1_RXD1;
AT91C_BASE_PMC->PMC_PCER = 1 << AT91C_ID_US1;
at91_set_A_periph(AT91_PIN_PD0, 1); /* TXD1 */
at91_set_A_periph(AT91_PIN_PD1, 0); /* RXD1 */
at91_sys_write(AT91_PMC_PCER, 1 << AT91_ID_US1);
#endif
#ifdef CONFIG_USART2
AT91C_BASE_PIOD->PIO_PDR = AT91C_PD2_TXD2 | AT91C_PD3_RXD2;
AT91C_BASE_PMC->PMC_PCER = 1 << AT91C_ID_US2;
at91_set_A_periph(AT91_PIN_PD2, 1); /* TXD2 */
at91_set_A_periph(AT91_PIN_PD3, 0); /* RXD2 */
at91_sys_write(AT91_PMC_PCER, 1 << AT91_ID_US2);
#endif
#ifdef CONFIG_USART3 /* DBGU */
AT91C_BASE_PIOC->PIO_PDR = AT91C_PC31_DTXD | AT91C_PC30_DRXD;
AT91C_BASE_PMC->PMC_PCER = 1 << AT91C_ID_SYS;
at91_set_A_periph(AT91_PIN_PC30, 0); /* DRXD */
at91_set_A_periph(AT91_PIN_PC31, 1); /* DTXD */
at91_sys_write(AT91_PMC_PCER, 1 << AT91_ID_SYS);
#endif
}
static void at91cap9_nor_hw_init(void)
{
/* Ensure EBI supply is 3.3V */
AT91C_BASE_CCFG->CCFG_EBICSA |= AT91C_EBI_SUP_3V3;
unsigned long csa;
/* Ensure EBI supply is 3.3V */
csa = at91_sys_read(AT91_MATRIX_EBICSA);
at91_sys_write(AT91_MATRIX_EBICSA,
csa | AT91_MATRIX_EBI_VDDIOMSEL_3_3V);
/* Configure SMC CS0 for parallel flash */
AT91C_BASE_SMC->SMC_SETUP0 = AT91C_FLASH_NWE_SETUP |
AT91C_FLASH_NCS_WR_SETUP |
AT91C_FLASH_NRD_SETUP |
AT91C_FLASH_NCS_RD_SETUP;
AT91C_BASE_SMC->SMC_PULSE0 = AT91C_FLASH_NWE_PULSE |
AT91C_FLASH_NCS_WR_PULSE |
AT91C_FLASH_NRD_PULSE |
AT91C_FLASH_NCS_RD_PULSE;
AT91C_BASE_SMC->SMC_CYCLE0 = AT91C_FLASH_NWE_CYCLE |
AT91C_FLASH_NRD_CYCLE;
AT91C_BASE_SMC->SMC_CTRL0 = AT91C_SMC_READMODE |
AT91C_SMC_WRITEMODE |
AT91C_SMC_NWAITM_NWAIT_DISABLE |
AT91C_SMC_BAT_BYTE_WRITE |
AT91C_SMC_DBW_WIDTH_SIXTEEN_BITS |
(AT91C_SMC_TDF & (1 << 16));
at91_sys_write(AT91_SMC_SETUP(0),
AT91_SMC_NWESETUP_(4) | AT91_SMC_NCS_WRSETUP_(2) |
AT91_SMC_NRDSETUP_(4) | AT91_SMC_NCS_RDSETUP_(2));
at91_sys_write(AT91_SMC_PULSE(0),
AT91_SMC_NWEPULSE_(8) | AT91_SMC_NCS_WRPULSE_(10) |
AT91_SMC_NRDPULSE_(8) | AT91_SMC_NCS_RDPULSE_(10));
at91_sys_write(AT91_SMC_CYCLE(0),
AT91_SMC_NWECYCLE_(16) | AT91_SMC_NRDCYCLE_(16));
at91_sys_write(AT91_SMC_MODE(0),
AT91_SMC_READMODE | AT91_SMC_WRITEMODE |
AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE |
AT91_SMC_DBW_16 | AT91_SMC_TDF_(1));
}
#ifdef CONFIG_CMD_NAND
static void at91cap9_nand_hw_init(void)
{
unsigned long csa;
/* Enable CS3 */
AT91C_BASE_CCFG->CCFG_EBICSA |= AT91C_EBI_CS3A_SM | AT91C_EBI_SUP_3V3;
csa = at91_sys_read(AT91_MATRIX_EBICSA);
at91_sys_write(AT91_MATRIX_EBICSA,
csa | AT91_MATRIX_EBI_CS3A_SMC_SMARTMEDIA |
AT91_MATRIX_EBI_VDDIOMSEL_3_3V);
/* Configure SMC CS3 for NAND/SmartMedia */
AT91C_BASE_SMC->SMC_SETUP3 = AT91C_SM_NWE_SETUP |
AT91C_SM_NCS_WR_SETUP |
AT91C_SM_NRD_SETUP |
AT91C_SM_NCS_RD_SETUP;
AT91C_BASE_SMC->SMC_PULSE3 = AT91C_SM_NWE_PULSE |
AT91C_SM_NCS_WR_PULSE |
AT91C_SM_NRD_PULSE |
AT91C_SM_NCS_RD_PULSE;
AT91C_BASE_SMC->SMC_CYCLE3 = AT91C_SM_NWE_CYCLE |
AT91C_SM_NRD_CYCLE;
AT91C_BASE_SMC->SMC_CTRL3 = AT91C_SMC_READMODE |
AT91C_SMC_WRITEMODE |
AT91C_SMC_NWAITM_NWAIT_DISABLE |
AT91C_SMC_DBW_WIDTH_EIGTH_BITS |
AT91C_SM_TDF;
AT91C_BASE_PMC->PMC_PCER = 1 << AT91C_ID_PIOABCD;
at91_sys_write(AT91_SMC_SETUP(3),
AT91_SMC_NWESETUP_(2) | AT91_SMC_NCS_WRSETUP_(1) |
AT91_SMC_NRDSETUP_(2) | AT91_SMC_NCS_RDSETUP_(1));
at91_sys_write(AT91_SMC_PULSE(3),
AT91_SMC_NWEPULSE_(4) | AT91_SMC_NCS_WRPULSE_(6) |
AT91_SMC_NRDPULSE_(4) | AT91_SMC_NCS_RDPULSE_(6));
at91_sys_write(AT91_SMC_CYCLE(3),
AT91_SMC_NWECYCLE_(8) | AT91_SMC_NRDCYCLE_(8));
at91_sys_write(AT91_SMC_MODE(3),
AT91_SMC_READMODE | AT91_SMC_WRITEMODE |
AT91_SMC_EXNWMODE_DISABLE |
AT91_SMC_DBW_8 | AT91_SMC_TDF_(1));
at91_sys_write(AT91_PMC_PCER, 1 << AT91CAP9_ID_PIOABCD);
/* RDY/BSY is not connected */
/* Enable NandFlash */
AT91C_BASE_PIOD->PIO_PER = AT91C_PIO_PD15;
AT91C_BASE_PIOD->PIO_OER = AT91C_PIO_PD15;
at91_set_gpio_output(AT91_PIN_PD15, 1);
}
#endif
#ifdef CONFIG_HAS_DATAFLASH
static void at91cap9_spi_hw_init(void)
{
AT91C_BASE_PIOD->PIO_BSR = AT91C_PD0_SPI0_NPCS2D |
AT91C_PD1_SPI0_NPCS3D;
AT91C_BASE_PIOD->PIO_PDR = AT91C_PD0_SPI0_NPCS2D |
AT91C_PD1_SPI0_NPCS3D;
AT91C_BASE_PIOA->PIO_ASR = AT91C_PA28_SPI0_NPCS3A;
AT91C_BASE_PIOA->PIO_BSR = AT91C_PA4_SPI0_NPCS2A |
AT91C_PA1_SPI0_MOSI |
AT91C_PA0_SPI0_MISO |
AT91C_PA3_SPI0_NPCS1 |
AT91C_PA5_SPI0_NPCS0 |
AT91C_PA2_SPI0_SPCK;
AT91C_BASE_PIOA->PIO_PDR = AT91C_PA28_SPI0_NPCS3A |
AT91C_PA4_SPI0_NPCS2A |
AT91C_PA1_SPI0_MOSI |
AT91C_PA0_SPI0_MISO |
AT91C_PA3_SPI0_NPCS1 |
AT91C_PA5_SPI0_NPCS0 |
AT91C_PA2_SPI0_SPCK;
/* Enable Clock */
AT91C_BASE_PMC->PMC_PCER = 1 << AT91C_ID_SPI0;
at91_set_B_periph(AT91_PIN_PA5, 0); /* SPI0_NPCS0 */
at91_set_B_periph(AT91_PIN_PA0, 0); /* SPI0_MISO */
at91_set_B_periph(AT91_PIN_PA1, 0); /* SPI0_MOSI */
at91_set_B_periph(AT91_PIN_PA2, 0); /* SPI0_SPCK */
/* Enable clock */
at91_sys_write(AT91_PMC_PCER, 1 << AT91CAP9_ID_SPI0);
}
#endif
#ifdef CONFIG_MACB
static void at91cap9_macb_hw_init(void)
{
unsigned int gpio;
/* Enable clock */
AT91C_BASE_PMC->PMC_PCER = 1 << AT91C_ID_EMAC;
at91_sys_write(AT91_PMC_PCER, 1 << AT91CAP9_ID_EMAC);
/*
* Disable pull-up on:
......@@ -169,54 +155,59 @@ static void at91cap9_macb_hw_init(void)
*
* PHY has internal pull-down
*/
AT91C_BASE_PIOB->PIO_PPUDR = AT91C_PB22_E_RXDV |
AT91C_PB25_E_RX0 |
AT91C_PB26_E_RX1;
writel(pin_to_mask(AT91_PIN_PB22) |
pin_to_mask(AT91_PIN_PB25) |
pin_to_mask(AT91_PIN_PB26),
pin_to_controller(AT91_PIN_PA0) + PIO_PUDR);
/* Need to reset PHY -> 500ms reset */
AT91C_BASE_RSTC->RSTC_RMR = (AT91C_RSTC_KEY & (0xA5 << 24)) |
(AT91C_RSTC_ERSTL & (0x0D << 8)) |
AT91C_RSTC_URSTEN;
AT91C_BASE_RSTC->RSTC_RCR = (AT91C_RSTC_KEY & (0xA5 << 24)) |
AT91C_RSTC_EXTRST;
at91_sys_write(AT91_RSTC_MR, AT91_RSTC_KEY |
AT91_RSTC_ERSTL | (0x0D << 8) |
AT91_RSTC_URSTEN);
at91_sys_write(AT91_RSTC_CR, AT91_RSTC_KEY | AT91_RSTC_EXTRST);
/* Wait for end hardware reset */
while (!(AT91C_BASE_RSTC->RSTC_RSR & AT91C_RSTC_NRSTL));
while (!(at91_sys_read(AT91_RSTC_SR) & AT91_RSTC_NRSTL));
/* Re-enable pull-up */
AT91C_BASE_PIOB->PIO_PPUER = AT91C_PB22_E_RXDV |
AT91C_PB25_E_RX0 |
AT91C_PB26_E_RX1;
#ifdef CONFIG_RMII
gpio = AT91C_PB30_E_MDIO |
AT91C_PB29_E_MDC |
AT91C_PB21_E_TXCK |
AT91C_PB27_E_RXER |
AT91C_PB25_E_RX0 |
AT91C_PB22_E_RXDV |
AT91C_PB26_E_RX1 |
AT91C_PB28_E_TXEN |
AT91C_PB23_E_TX0 |
AT91C_PB24_E_TX1;
AT91C_BASE_PIOB->PIO_ASR = gpio;
AT91C_BASE_PIOB->PIO_BSR = 0;
AT91C_BASE_PIOB->PIO_PDR = gpio;
#else
#error AT91CAP9A-DK works only in RMII mode
writel(pin_to_mask(AT91_PIN_PB22) |
pin_to_mask(AT91_PIN_PB25) |
pin_to_mask(AT91_PIN_PB26),
pin_to_controller(AT91_PIN_PA0) + PIO_PUER);
at91_set_A_periph(AT91_PIN_PB21, 0); /* ETXCK_EREFCK */
at91_set_A_periph(AT91_PIN_PB22, 0); /* ERXDV */
at91_set_A_periph(AT91_PIN_PB25, 0); /* ERX0 */
at91_set_A_periph(AT91_PIN_PB26, 0); /* ERX1 */
at91_set_A_periph(AT91_PIN_PB27, 0); /* ERXER */
at91_set_A_periph(AT91_PIN_PB28, 0); /* ETXEN */
at91_set_A_periph(AT91_PIN_PB23, 0); /* ETX0 */
at91_set_A_periph(AT91_PIN_PB24, 0); /* ETX1 */
at91_set_A_periph(AT91_PIN_PB30, 0); /* EMDIO */
at91_set_A_periph(AT91_PIN_PB29, 0); /* EMDC */
#ifndef CONFIG_RMII
at91_set_B_periph(AT91_PIN_PC25, 0); /* ECRS */
at91_set_B_periph(AT91_PIN_PC26, 0); /* ECOL */
at91_set_B_periph(AT91_PIN_PC22, 0); /* ERX2 */
at91_set_B_periph(AT91_PIN_PC23, 0); /* ERX3 */
at91_set_B_periph(AT91_PIN_PC27, 0); /* ERXCK */
at91_set_B_periph(AT91_PIN_PC20, 0); /* ETX2 */
at91_set_B_periph(AT91_PIN_PC21, 0); /* ETX3 */
at91_set_B_periph(AT91_PIN_PC24, 0); /* ETXER */
#endif
/* Unlock EMAC, 3 0 2 1 sequence */
#define MP_MAC_KEY0 0x5969cb2a
#define MP_MAC_KEY1 0xb4a1872e
#define MP_MAC_KEY2 0x05683fbc
#define MP_MAC_KEY3 0x3634fba4
#define UNLOCK_MAC 0x00000008
*((AT91_REG *)((AT91_REG) MP_BLOCK_3_BASE + 0x3c)) = MP_MAC_KEY3;
*((AT91_REG *)((AT91_REG) MP_BLOCK_3_BASE + 0x30)) = MP_MAC_KEY0;
*((AT91_REG *)((AT91_REG) MP_BLOCK_3_BASE + 0x38)) = MP_MAC_KEY2;
*((AT91_REG *)((AT91_REG) MP_BLOCK_3_BASE + 0x34)) = MP_MAC_KEY1;
*((AT91_REG *)((AT91_REG) MP_BLOCK_3_BASE + 0x40)) = UNLOCK_MAC;
writel(MP_MAC_KEY3, MP_BLOCK_3_BASE + 0x3c);
writel(MP_MAC_KEY0, MP_BLOCK_3_BASE + 0x30);
writel(MP_MAC_KEY2, MP_BLOCK_3_BASE + 0x38);
writel(MP_MAC_KEY1, MP_BLOCK_3_BASE + 0x34);
writel(UNLOCK_MAC, MP_BLOCK_3_BASE + 0x40);
}
#endif
......@@ -229,11 +220,11 @@ static void at91cap9_uhp_hw_init(void)
#define MP_OHCI_KEY2 0x4823efbc
#define MP_OHCI_KEY3 0x8651aae4
#define UNLOCK_OHCI 0x00000010
*((AT91_REG *)((AT91_REG) MP_BLOCK_3_BASE + 0x3c)) = MP_OHCI_KEY3;
*((AT91_REG *)((AT91_REG) MP_BLOCK_3_BASE + 0x38)) = MP_OHCI_KEY2;
*((AT91_REG *)((AT91_REG) MP_BLOCK_3_BASE + 0x30)) = MP_OHCI_KEY0;
*((AT91_REG *)((AT91_REG) MP_BLOCK_3_BASE + 0x34)) = MP_OHCI_KEY1;
*((AT91_REG *)((AT91_REG) MP_BLOCK_3_BASE + 0x40)) = UNLOCK_OHCI;
writel(MP_OHCI_KEY3, MP_BLOCK_3_BASE + 0x3c);
writel(MP_OHCI_KEY2, MP_BLOCK_3_BASE + 0x38);
writel(MP_OHCI_KEY0, MP_BLOCK_3_BASE + 0x30);
writel(MP_OHCI_KEY1, MP_BLOCK_3_BASE + 0x34);
writel(UNLOCK_OHCI, MP_BLOCK_3_BASE + 0x40);
}
#endif
......
......@@ -23,58 +23,55 @@
*/
#include <common.h>
#include <asm/arch/AT91CAP9.h>
#include <asm/arch/at91cap9.h>
#include <asm/arch/at91_pmc.h>
#include <asm/arch/gpio.h>
#include <asm/arch/io.h>
#define RED_LED AT91C_PIO_PC29 /* this is the power led */
#define GREEN_LED AT91C_PIO_PA10 /* this is the user1 led */
#define YELLOW_LED AT91C_PIO_PA11 /* this is the user1 led */
#define RED_LED AT91_PIN_PC29 /* this is the power led */
#define GREEN_LED AT91_PIN_PA10 /* this is the user1 led */
#define YELLOW_LED AT91_PIN_PA11 /* this is the user1 led */
void red_LED_on(void)
{
AT91C_BASE_PIOC->PIO_SODR = RED_LED;
at91_set_gpio_value(RED_LED, 1);
}
void red_LED_off(void)
{
AT91C_BASE_PIOC->PIO_CODR = RED_LED;
at91_set_gpio_value(RED_LED, 0);
}
void green_LED_on(void)
{
AT91C_BASE_PIOA->PIO_CODR = GREEN_LED;
at91_set_gpio_value(GREEN_LED, 0);
}
void green_LED_off(void)
{
AT91C_BASE_PIOA->PIO_SODR = GREEN_LED;
at91_set_gpio_value(GREEN_LED, 1);
}
void yellow_LED_on(void)
{
AT91C_BASE_PIOA->PIO_CODR = YELLOW_LED;
at91_set_gpio_value(YELLOW_LED, 0);
}
void yellow_LED_off(void)
{
AT91C_BASE_PIOA->PIO_SODR = YELLOW_LED;
at91_set_gpio_value(YELLOW_LED, 1);
}
void coloured_LED_init(void)
{
/* Enable clock */
AT91C_BASE_PMC->PMC_PCER = 1 << AT91C_ID_PIOABCD;
at91_sys_write(AT91_PMC_PCER, 1 << AT91CAP9_ID_PIOABCD);
/* Disable peripherals on LEDs */
AT91C_BASE_PIOA->PIO_PER = GREEN_LED | YELLOW_LED;
/* Enable pins as outputs */
AT91C_BASE_PIOA->PIO_OER = GREEN_LED | YELLOW_LED;
/* Turn all LEDs OFF */
AT91C_BASE_PIOA->PIO_SODR = GREEN_LED | YELLOW_LED;
at91_set_gpio_output(RED_LED, 1);
at91_set_gpio_output(GREEN_LED, 1);
at91_set_gpio_output(YELLOW_LED, 1);
/* Disable peripherals on LEDs */
AT91C_BASE_PIOC->PIO_PER = RED_LED;
/* Enable pins as outputs */
AT91C_BASE_PIOC->PIO_OER = RED_LED;
/* Turn all LEDs OFF */
AT91C_BASE_PIOC->PIO_CODR = RED_LED;
at91_set_gpio_output(RED_LED, 0);
at91_set_gpio_output(GREEN_LED, 1);
at91_set_gpio_output(YELLOW_LED, 1);
}
......@@ -25,7 +25,9 @@
*/
#include <common.h>
#include <asm/arch/hardware.h>
#include <asm/arch/at91cap9.h>
#include <asm/arch/gpio.h>
#include <asm/arch/at91_pio.h>
#ifdef CONFIG_CMD_NAND
......@@ -51,10 +53,10 @@ static void at91cap9adk_nand_hwcontrol(struct mtd_info *mtd, int cmd)
IO_ADDR_W |= MASK_ALE;
break;
case NAND_CTL_CLRNCE:
AT91C_BASE_PIOD->PIO_SODR = AT91C_PIO_PD15;
at91_set_gpio_value(AT91_PIN_PD15, 1);
break;
case NAND_CTL_SETNCE:
AT91C_BASE_PIOD->PIO_CODR = AT91C_PIO_PD15;
at91_set_gpio_value(AT91_PIN_PD15, 0);
break;
}
this->IO_ADDR_W = (void *) IO_ADDR_W;
......
......@@ -30,6 +30,6 @@ extern int macb_eth_initialize(int id, void *regs, unsigned int phy_addr);
#if defined(CONFIG_MACB) && defined(CONFIG_CMD_NET)
void at91sam9_eth_initialize(bd_t *bi)
{
macb_eth_initialize(0, (void *)AT91C_BASE_MACB, 0x00);
macb_eth_initialize(0, (void *)AT91_BASE_EMAC, 0x00);
}
#endif
......@@ -19,94 +19,135 @@
*
*/
#include <config.h>
#include <common.h>
#include <asm/hardware.h>
#include <asm/arch/hardware.h>
#include <asm/arch/gpio.h>
#include <asm/arch/io.h>
#include <asm/arch/at91_pio.h>
#include <asm/arch/at91_spi.h>
#ifdef CONFIG_HAS_DATAFLASH
#include <dataflash.h>
/* Max Value = 10MHz to be compliant to the Continuous Array Read function */
#define AT91C_SPI_CLK 10000000
/* AC Characteristics: DLYBS = tCSS = 250ns min and DLYBCT = tCSH = 250ns */
#define DATAFLASH_TCSS (0xFA << 16)
#define DATAFLASH_TCHS (0x8 << 24)
#define AT91C_TIMEOUT_WRDY 200000
#define AT91C_SPI_PCS0_DATAFLASH_CARD 0xE /* Chip Select 0: NPCS0%1110 */
#define AT91C_SPI_PCS3_DATAFLASH_CARD 0x7 /* Chip Select 3: NPCS3%0111 */
#define AT91_SPI_PCS0_DATAFLASH_CARD 0xE /* Chip Select 0: NPCS0%1110 */
#define AT91_SPI_PCS1_DATAFLASH_CARD 0xD /* Chip Select 0: NPCS0%1101 */
#define AT91_SPI_PCS3_DATAFLASH_CARD 0x7 /* Chip Select 3: NPCS3%0111 */
void AT91F_SpiInit(void)
{
/* Reset the SPI */
AT91C_BASE_SPI0->SPI_CR = AT91C_SPI_SWRST;
writel(AT91_SPI_SWRST, AT91_BASE_SPI + AT91_SPI_CR);
/* Configure SPI in Master Mode with No CS selected !!! */
AT91C_BASE_SPI0->SPI_MR =
AT91C_SPI_MSTR | AT91C_SPI_MODFDIS | AT91C_SPI_PCS;
writel(AT91_SPI_MSTR | AT91_SPI_MODFDIS | AT91_SPI_PCS,
AT91_BASE_SPI + AT91_SPI_MR);
/* Configure CS0 */
AT91C_BASE_SPI0->SPI_CSR[0] =
AT91C_SPI_CPOL |
(AT91C_SPI_DLYBS & DATAFLASH_TCSS) |
(AT91C_SPI_DLYBCT & DATAFLASH_TCHS) |
((AT91C_MASTER_CLOCK / (2*AT91C_SPI_CLK)) << 8);
writel(AT91_SPI_NCPHA |
(AT91_SPI_DLYBS & DATAFLASH_TCSS) |
(AT91_SPI_DLYBCT & DATAFLASH_TCHS) |
((AT91_MASTER_CLOCK / AT91_SPI_CLK) << 8),
AT91_BASE_SPI + AT91_SPI_CSR(0));
#ifdef CFG_DATAFLASH_LOGIC_ADDR_CS1
/* Configure CS1 */
writel(AT91_SPI_NCPHA |
(AT91_SPI_DLYBS & DATAFLASH_TCSS) |
(AT91_SPI_DLYBCT & DATAFLASH_TCHS) |
((AT91_MASTER_CLOCK / AT91_SPI_CLK) << 8),
AT91_BASE_SPI + AT91_SPI_CSR(1));
#endif
#ifdef CFG_DATAFLASH_LOGIC_ADDR_CS3
/* Configure CS3 */
writel(AT91_SPI_NCPHA |
(AT91_SPI_DLYBS & DATAFLASH_TCSS) |
(AT91_SPI_DLYBCT & DATAFLASH_TCHS) |
((AT91_MASTER_CLOCK / AT91_SPI_CLK) << 8),
AT91_BASE_SPI + AT91_SPI_CSR(3));
#endif
/* SPI_Enable */
writel(AT91_SPI_SPIEN, AT91_BASE_SPI + AT91_SPI_CR);
while (!(readl(AT91_BASE_SPI + AT91_SPI_SR) & AT91_SPI_SPIENS));
/*
* Add tempo to get SPI in a safe state.
* Should not be needed for new silicon (Rev B)
*/
udelay(500000);
readl(AT91_BASE_SPI + AT91_SPI_SR);
readl(AT91_BASE_SPI + AT91_SPI_RDR);
}
void AT91F_SpiEnable(int cs)
{
unsigned long mode;
switch (cs) {
case 0: /* Configure SPI CS0 for Serial DataFlash AT45DBxx */
AT91C_BASE_SPI0->SPI_MR &= 0xFFF0FFFF;
AT91C_BASE_SPI0->SPI_MR |=
((AT91C_SPI_PCS0_DATAFLASH_CARD<<16) & AT91C_SPI_PCS);
mode = readl(AT91_BASE_SPI + AT91_SPI_MR);
mode &= 0xFFF0FFFF;
writel(mode | ((AT91_SPI_PCS0_DATAFLASH_CARD<<16) & AT91_SPI_PCS),
AT91_BASE_SPI + AT91_SPI_MR);
break;
case 1: /* Configure SPI CS1 for Serial DataFlash AT45DBxx */
mode = readl(AT91_BASE_SPI + AT91_SPI_MR);
mode &= 0xFFF0FFFF;
writel(mode | ((AT91_SPI_PCS1_DATAFLASH_CARD<<16) & AT91_SPI_PCS),
AT91_BASE_SPI + AT91_SPI_MR);
break;
case 3:
AT91C_BASE_SPI0->SPI_MR &= 0xFFF0FFFF;
AT91C_BASE_SPI0->SPI_MR |=
((AT91C_SPI_PCS3_DATAFLASH_CARD<<16) & AT91C_SPI_PCS);
mode = readl(AT91_BASE_SPI + AT91_SPI_MR);
mode &= 0xFFF0FFFF;
writel(mode | ((AT91_SPI_PCS3_DATAFLASH_CARD<<16) & AT91_SPI_PCS),
AT91_BASE_SPI + AT91_SPI_MR);
break;
}
/* SPI_Enable */
AT91C_BASE_SPI0->SPI_CR = AT91C_SPI_SPIEN;
writel(AT91_SPI_SPIEN, AT91_BASE_SPI + AT91_SPI_CR);
}
unsigned int AT91F_SpiWrite1(AT91PS_DataflashDesc pDesc);
unsigned int AT91F_SpiWrite(AT91PS_DataflashDesc pDesc)
{
unsigned int timeout;
pDesc->state = BUSY;
AT91C_BASE_SPI0->SPI_PTCR = AT91C_PDC_TXTDIS + AT91C_PDC_RXTDIS;
writel(AT91_SPI_TXTDIS + AT91_SPI_RXTDIS, AT91_BASE_SPI + AT91_SPI_PTCR);
/* Initialize the Transmit and Receive Pointer */
AT91C_BASE_SPI0->SPI_RPR = (unsigned int)pDesc->rx_cmd_pt;
AT91C_BASE_SPI0->SPI_TPR = (unsigned int)pDesc->tx_cmd_pt;
writel((unsigned int)pDesc->rx_cmd_pt, AT91_BASE_SPI + AT91_SPI_RPR);
writel((unsigned int)pDesc->tx_cmd_pt, AT91_BASE_SPI + AT91_SPI_TPR);
/* Intialize the Transmit and Receive Counters */
AT91C_BASE_SPI0->SPI_RCR = pDesc->rx_cmd_size;
AT91C_BASE_SPI0->SPI_TCR = pDesc->tx_cmd_size;
writel(pDesc->rx_cmd_size, AT91_BASE_SPI + AT91_SPI_RCR);
writel(pDesc->tx_cmd_size, AT91_BASE_SPI + AT91_SPI_TCR);
if (pDesc->tx_data_size != 0) {
/* Initialize the Next Transmit and Next Receive Pointer */
AT91C_BASE_SPI0->SPI_RNPR = (unsigned int)pDesc->rx_data_pt;
AT91C_BASE_SPI0->SPI_TNPR = (unsigned int)pDesc->tx_data_pt;
writel((unsigned int)pDesc->rx_data_pt, AT91_BASE_SPI + AT91_SPI_RNPR);
writel((unsigned int)pDesc->tx_data_pt, AT91_BASE_SPI + AT91_SPI_TNPR);
/* Intialize the Next Transmit and Next Receive Counters */
AT91C_BASE_SPI0->SPI_RNCR = pDesc->rx_data_size;
AT91C_BASE_SPI0->SPI_TNCR = pDesc->tx_data_size;
writel(pDesc->rx_data_size, AT91_BASE_SPI + AT91_SPI_RNCR);
writel(pDesc->tx_data_size, AT91_BASE_SPI + AT91_SPI_TNCR);
}
/* arm simple, non interrupt dependent timer */
reset_timer_masked();
timeout = 0;
AT91C_BASE_SPI0->SPI_PTCR = AT91C_PDC_TXTEN + AT91C_PDC_RXTEN;
while (!(AT91C_BASE_SPI0->SPI_SR & AT91C_SPI_RXBUFF) &&
writel(AT91_SPI_TXTEN + AT91_SPI_RXTEN, AT91_BASE_SPI + AT91_SPI_PTCR);
while (!(readl(AT91_BASE_SPI + AT91_SPI_SR) & AT91_SPI_RXBUFF) &&
((timeout = get_timer_masked()) < CFG_SPI_WRITE_TOUT));
AT91C_BASE_SPI0->SPI_PTCR = AT91C_PDC_TXTDIS + AT91C_PDC_RXTDIS;
writel(AT91_SPI_TXTDIS + AT91_SPI_RXTDIS, AT91_BASE_SPI + AT91_SPI_PTCR);
pDesc->state = IDLE;
if (timeout >= CFG_SPI_WRITE_TOUT) {
......