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u-boot/board/atmel/at91cap9adk/at91cap9adk.c
Jean-Christophe PLAGNIOL-VILLARD b54384e3ba arm: timer and interrupt init rework 
actually the timer init use the interrupt_init as init callback
which make the interrupt and timer implementation difficult to follow

so now rename it as int timer_init(void) and use interrupt_init for interrupt

btw also remane the corresponding file to the functionnality implemented

as ixp arch implement two timer - one based on interrupt - so all the timer
related code is moved to timer.c

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2009-06-12 20:39:48 +02:00

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/*
* (C) Copyright 2007-2008
* Stelian Pop <stelian.pop@leadtechdesign.com>
* Lead Tech Design <www.leadtechdesign.com>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* 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.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <asm/arch/at91cap9.h>
#include <asm/arch/at91cap9_matrix.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/clk.h>
#include <asm/arch/gpio.h>
#include <asm/arch/io.h>
#include <asm/arch/hardware.h>
#include <lcd.h>
#include <atmel_lcdc.h>
#if defined(CONFIG_RESET_PHY_R) && defined(CONFIG_MACB)
#include <net.h>
#endif
#include <netdev.h>
#define MP_BLOCK_3_BASE 0xFDF00000
DECLARE_GLOBAL_DATA_PTR;
/* ------------------------------------------------------------------------- */
/*
* Miscelaneous platform dependent initialisations
*/
static void at91cap9_slowclock_hw_init(void)
{
/*
* On AT91CAP9 revC CPUs, the slow clock can be based on an
* internal impreciseRC oscillator or an external 32kHz oscillator.
* Switch to the latter.
*/
#define ARCH_ID_AT91CAP9_REVB 0x399
#define ARCH_ID_AT91CAP9_REVC 0x601
if (at91_sys_read(AT91_PMC_VER) == ARCH_ID_AT91CAP9_REVC) {
unsigned i, tmp = at91_sys_read(AT91_SCKCR);
if ((tmp & AT91CAP9_SCKCR_OSCSEL) == AT91CAP9_SCKCR_OSCSEL_RC) {
timer_init();
tmp |= AT91CAP9_SCKCR_OSC32EN;
at91_sys_write(AT91_SCKCR, tmp);
for (i = 0; i < 1200; i++)
udelay(1000);
tmp |= AT91CAP9_SCKCR_OSCSEL_32;
at91_sys_write(AT91_SCKCR, tmp);
udelay(200);
tmp &= ~AT91CAP9_SCKCR_RCEN;
at91_sys_write(AT91_SCKCR, tmp);
}
}
}
static void at91cap9_nor_hw_init(void)
{
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 */
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 */
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 */
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 |
#ifdef CONFIG_SYS_NAND_DBW_16
AT91_SMC_DBW_16 |
#else /* CONFIG_SYS_NAND_DBW_8 */
AT91_SMC_DBW_8 |
#endif
AT91_SMC_TDF_(1));
at91_sys_write(AT91_PMC_PCER, 1 << AT91CAP9_ID_PIOABCD);
/* RDY/BSY is not connected */
/* Enable NandFlash */
at91_set_gpio_output(CONFIG_SYS_NAND_ENABLE_PIN, 1);
}
#endif
#ifdef CONFIG_MACB
static void at91cap9_macb_hw_init(void)
{
/* Enable clock */
at91_sys_write(AT91_PMC_PCER, 1 << AT91CAP9_ID_EMAC);
/*
* Disable pull-up on:
* RXDV (PB22) => PHY normal mode (not Test mode)
* ERX0 (PB25) => PHY ADDR0
* ERX1 (PB26) => PHY ADDR1 => PHYADDR = 0x0
*
* PHY has internal pull-down
*/
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 */
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 (!(at91_sys_read(AT91_RSTC_SR) & AT91_RSTC_NRSTL));
/* Restore NRST value */
at91_sys_write(AT91_RSTC_MR, AT91_RSTC_KEY |
(AT91_RSTC_ERSTL & (0x0 << 8)) |
AT91_RSTC_URSTEN);
/* Re-enable pull-up */
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_macb_hw_init();
/* 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
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
#ifdef CONFIG_USB_OHCI_NEW
static void at91cap9_uhp_hw_init(void)
{
/* Unlock USB OHCI, 3 2 0 1 sequence */
#define MP_OHCI_KEY0 0x896c11ca
#define MP_OHCI_KEY1 0x68ebca21
#define MP_OHCI_KEY2 0x4823efbc
#define MP_OHCI_KEY3 0x8651aae4
#define UNLOCK_OHCI 0x00000010
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
#ifdef CONFIG_LCD
vidinfo_t panel_info = {
vl_col: 240,
vl_row: 320,
vl_clk: 4965000,
vl_sync: ATMEL_LCDC_INVLINE_INVERTED |
ATMEL_LCDC_INVFRAME_INVERTED,
vl_bpix: 3,
vl_tft: 1,
vl_hsync_len: 5,
vl_left_margin: 1,
vl_right_margin:33,
vl_vsync_len: 1,
vl_upper_margin:1,
vl_lower_margin:0,
mmio: AT91CAP9_LCDC_BASE,
};
void lcd_enable(void)
{
at91_set_gpio_value(AT91_PIN_PC0, 0); /* power up */
}
void lcd_disable(void)
{
at91_set_gpio_value(AT91_PIN_PC0, 1); /* power down */
}
static void at91cap9_lcd_hw_init(void)
{
at91_set_A_periph(AT91_PIN_PC1, 0); /* LCDHSYNC */
at91_set_A_periph(AT91_PIN_PC2, 0); /* LCDDOTCK */
at91_set_A_periph(AT91_PIN_PC3, 0); /* LCDDEN */
at91_set_B_periph(AT91_PIN_PB9, 0); /* LCDCC */
at91_set_A_periph(AT91_PIN_PC6, 0); /* LCDD2 */
at91_set_A_periph(AT91_PIN_PC7, 0); /* LCDD3 */
at91_set_A_periph(AT91_PIN_PC8, 0); /* LCDD4 */
at91_set_A_periph(AT91_PIN_PC9, 0); /* LCDD5 */
at91_set_A_periph(AT91_PIN_PC10, 0); /* LCDD6 */
at91_set_A_periph(AT91_PIN_PC11, 0); /* LCDD7 */
at91_set_A_periph(AT91_PIN_PC14, 0); /* LCDD10 */
at91_set_A_periph(AT91_PIN_PC15, 0); /* LCDD11 */
at91_set_A_periph(AT91_PIN_PC16, 0); /* LCDD12 */
at91_set_A_periph(AT91_PIN_PC17, 0); /* LCDD13 */
at91_set_A_periph(AT91_PIN_PC18, 0); /* LCDD14 */
at91_set_A_periph(AT91_PIN_PC19, 0); /* LCDD15 */
at91_set_A_periph(AT91_PIN_PC22, 0); /* LCDD18 */
at91_set_A_periph(AT91_PIN_PC23, 0); /* LCDD19 */
at91_set_A_periph(AT91_PIN_PC24, 0); /* LCDD20 */
at91_set_A_periph(AT91_PIN_PC25, 0); /* LCDD21 */
at91_set_A_periph(AT91_PIN_PC26, 0); /* LCDD22 */
at91_set_A_periph(AT91_PIN_PC27, 0); /* LCDD23 */
at91_sys_write(AT91_PMC_PCER, 1 << AT91CAP9_ID_LCDC);
gd->fb_base = 0;
}
#ifdef CONFIG_LCD_INFO
#include <nand.h>
#include <version.h>
void lcd_show_board_info(void)
{
ulong dram_size, nand_size;
int i;
char temp[32];
lcd_printf ("%s\n", U_BOOT_VERSION);
lcd_printf ("(C) 2008 ATMEL Corp\n");
lcd_printf ("at91support@atmel.com\n");
lcd_printf ("%s CPU at %s MHz\n",
AT91_CPU_NAME,
strmhz(temp, get_cpu_clk_rate()));
dram_size = 0;
for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++)
dram_size += gd->bd->bi_dram[i].size;
nand_size = 0;
for (i = 0; i < CONFIG_SYS_MAX_NAND_DEVICE; i++)
nand_size += nand_info[i].size;
lcd_printf (" %ld MB SDRAM, %ld MB NAND\n",
dram_size >> 20,
nand_size >> 20 );
}
#endif /* CONFIG_LCD_INFO */
#endif
int board_init(void)
{
/* Enable Ctrlc */
console_init_f();
/* arch number of AT91CAP9ADK-Board */
gd->bd->bi_arch_number = MACH_TYPE_AT91CAP9ADK;
/* adress of boot parameters */
gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
at91_serial_hw_init();
at91cap9_slowclock_hw_init();
at91cap9_nor_hw_init();
#ifdef CONFIG_CMD_NAND
at91cap9_nand_hw_init();
#endif
#ifdef CONFIG_HAS_DATAFLASH
at91_spi0_hw_init(1 << 0);
#endif
#ifdef CONFIG_MACB
at91cap9_macb_hw_init();
#endif
#ifdef CONFIG_USB_OHCI_NEW
at91cap9_uhp_hw_init();
#endif
#ifdef CONFIG_LCD
at91cap9_lcd_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)
{
#ifdef CONFIG_MACB
/*
* Initialize ethernet HW addr prior to starting Linux,
* needed for nfsroot
*/
eth_init(gd->bd);
#endif
}
#endif
int board_eth_init(bd_t *bis)
{
int rc = 0;
#ifdef CONFIG_MACB
rc = macb_eth_initialize(0, (void *)AT91CAP9_BASE_EMAC, 0x00);
#endif
return rc;
}
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