diff options
author | Stelian Pop <stelian@popies.net> | 2008-03-26 19:52:32 (GMT) |
---|---|---|
committer | Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> | 2008-03-31 23:45:50 (GMT) |
commit | 983c1db04c1dd0f92e02f06d29f0c65a3d9a2687 (patch) | |
tree | 59c4e30276a49cf468cdea9a9ef2b6258238acb6 /cpu | |
parent | 177e8a5ac81bbc531a1d54abdb47f2860266c3aa (diff) | |
download | u-boot-983c1db04c1dd0f92e02f06d29f0c65a3d9a2687.tar.xz |
Port AT91CAP9 to the new headers
Adapt the existing AT91CAP9 code to the new headers and APIs.
Signed-off-by: Stelian Pop <stelian@popies.net>
Diffstat (limited to 'cpu')
-rw-r--r-- | cpu/arm926ejs/at91sam9/ether.c | 2 | ||||
-rw-r--r-- | cpu/arm926ejs/at91sam9/spi.c | 119 | ||||
-rw-r--r-- | cpu/arm926ejs/at91sam9/timer.c | 25 | ||||
-rw-r--r-- | cpu/arm926ejs/at91sam9/usb.c | 10 |
4 files changed, 100 insertions, 56 deletions
diff --git a/cpu/arm926ejs/at91sam9/ether.c b/cpu/arm926ejs/at91sam9/ether.c index 8de1bb7..e4f5601 100644 --- a/cpu/arm926ejs/at91sam9/ether.c +++ b/cpu/arm926ejs/at91sam9/ether.c @@ -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 diff --git a/cpu/arm926ejs/at91sam9/spi.c b/cpu/arm926ejs/at91sam9/spi.c index 0953820..c819608 100644 --- a/cpu/arm926ejs/at91sam9/spi.c +++ b/cpu/arm926ejs/at91sam9/spi.c @@ -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) { diff --git a/cpu/arm926ejs/at91sam9/timer.c b/cpu/arm926ejs/at91sam9/timer.c index 79c135f..4e79466 100644 --- a/cpu/arm926ejs/at91sam9/timer.c +++ b/cpu/arm926ejs/at91sam9/timer.c @@ -24,22 +24,24 @@ #include <common.h> #include <asm/arch/hardware.h> +#include <asm/arch/at91_pit.h> +#include <asm/arch/at91_pmc.h> +#include <asm/arch/at91_rstc.h> +#include <asm/arch/io.h> /* * We're using the AT91CAP9/SAM9 PITC in 32 bit mode, by * setting the 20 bit counter period to its maximum (0xfffff). */ #define TIMER_LOAD_VAL 0xfffff -#define READ_RESET_TIMER (AT91C_BASE_PITC->PITC_PIVR) -#define READ_TIMER (AT91C_BASE_PITC->PITC_PIIR) +#define READ_RESET_TIMER at91_sys_read(AT91_PIT_PIVR) +#define READ_TIMER at91_sys_read(AT91_PIT_PIIR) #define TIMER_FREQ (AT91C_MASTER_CLOCK << 4) #define TICKS_TO_USEC(ticks) ((ticks) / 6) ulong get_timer_masked(void); ulong resettime; -AT91PS_PITC p_pitc; - /* nothing really to do with interrupts, just starts up a counter. */ int timer_init(void) { @@ -47,13 +49,10 @@ int timer_init(void) * Enable PITC Clock * The clock is already enabled for system controller in boot */ - AT91C_BASE_PMC->PMC_PCER = 1 << AT91C_ID_SYS; + at91_sys_write(AT91_PMC_PCER, 1 << AT91_ID_SYS); /* Enable PITC */ - AT91C_BASE_PITC->PITC_PIMR = AT91C_PITC_PITEN; - - /* Load PITC_PIMR with the right timer value */ - AT91C_BASE_PITC->PITC_PIMR |= TIMER_LOAD_VAL; + at91_sys_write(AT91_PIT_MR, TIMER_LOAD_VAL | AT91_PIT_PITEN); reset_timer_masked(); @@ -67,6 +66,7 @@ int timer_init(void) static inline ulong get_timer_raw(void) { ulong now = READ_TIMER; + if (now >= resettime) return now - resettime; else @@ -129,6 +129,7 @@ unsigned long long get_ticks(void) ulong get_tbclk(void) { ulong tbclk; + tbclk = CFG_HZ; return tbclk; } @@ -139,9 +140,9 @@ ulong get_tbclk(void) void reset_cpu(ulong ignored) { /* this is the way Linux does it */ - AT91C_BASE_RSTC->RSTC_RCR = (0xA5 << 24) | - AT91C_RSTC_PROCRST | - AT91C_RSTC_PERRST; + at91_sys_write(AT91_RSTC_CR, AT91_RSTC_KEY | + AT91_RSTC_PROCRST | + AT91_RSTC_PERRST); while (1); /* Never reached */ diff --git a/cpu/arm926ejs/at91sam9/usb.c b/cpu/arm926ejs/at91sam9/usb.c index 09292a6..d678897 100644 --- a/cpu/arm926ejs/at91sam9/usb.c +++ b/cpu/arm926ejs/at91sam9/usb.c @@ -26,12 +26,14 @@ #if defined(CONFIG_USB_OHCI_NEW) && defined(CFG_USB_OHCI_CPU_INIT) #include <asm/arch/hardware.h> +#include <asm/arch/io.h> +#include <asm/arch/at91_pmc.h> int usb_cpu_init(void) { /* Enable USB host clock. */ - AT91C_BASE_PMC->PMC_SCER = AT91C_PMC_UHP; - AT91C_BASE_PMC->PMC_PCER = 1 << AT91C_ID_UHP; + at91_sys_write(AT91_PMC_PCER, 1 << AT91_ID_UHP); + at91_sys_write(AT91_PMC_SCER, AT91_PMC_UHP); return 0; } @@ -39,8 +41,8 @@ int usb_cpu_init(void) int usb_cpu_stop(void) { /* Disable USB host clock. */ - AT91C_BASE_PMC->PMC_PCDR = 1 << AT91C_ID_UHP; - AT91C_BASE_PMC->PMC_SCDR = AT91C_PMC_UHP; + at91_sys_write(AT91_PMC_PCDR, 1 << AT91_ID_UHP); + at91_sys_write(AT91_PMC_SCDR, AT91_PMC_UHP); return 0; } |