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/*
* (C) Copyright 2008
* Stefan Roese, DENX Software Engineering, sr@denx.de.
*
* 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 <ppc440.h>
#include <libfdt.h>
#include <fdt_support.h>
#include <i2c.h>
#include <asm/processor.h>
#include <asm/io.h>
#include <asm/mmu.h>
#include <asm/4xx_pcie.h>
#include <asm/gpio.h>
#include <asm/errno.h>
extern flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */
DECLARE_GLOBAL_DATA_PTR;
#define CONFIG_SYS_BCSR3_PCIE 0x10
#define BOARD_CANYONLANDS_PCIE 1
#define BOARD_CANYONLANDS_SATA 2
#define BOARD_GLACIER 3
#define BOARD_ARCHES 4
/*
* Override the default functions in cpu/ppc4xx/44x_spd_ddr2.c with
* board specific values.
*/
#if defined(CONFIG_ARCHES)
u32 ddr_wrdtr(u32 default_val) {
return (SDRAM_WRDTR_LLWP_1_CYC | SDRAM_WRDTR_WTR_0_DEG | 0x823);
}
#else
u32 ddr_wrdtr(u32 default_val) {
return (SDRAM_WRDTR_LLWP_1_CYC | SDRAM_WRDTR_WTR_180_DEG_ADV | 0x823);
}
u32 ddr_clktr(u32 default_val) {
return (SDRAM_CLKTR_CLKP_90_DEG_ADV);
}
#endif
#if defined(CONFIG_ARCHES)
/*
* FPGA read/write helper macros
*/
static inline int board_fpga_read(int offset)
{
int data;
data = in_8((void *)(CONFIG_SYS_FPGA_BASE + offset));
return data;
}
static inline void board_fpga_write(int offset, int data)
{
out_8((void *)(CONFIG_SYS_FPGA_BASE + offset), data);
}
/*
* CPLD read/write helper macros
*/
static inline int board_cpld_read(int offset)
{
int data;
out_8((void *)(CONFIG_SYS_CPLD_ADDR), offset);
data = in_8((void *)(CONFIG_SYS_CPLD_DATA));
return data;
}
static inline void board_cpld_write(int offset, int data)
{
out_8((void *)(CONFIG_SYS_CPLD_ADDR), offset);
out_8((void *)(CONFIG_SYS_CPLD_DATA), data);
}
#else
static int pvr_460ex(void)
{
u32 pvr = get_pvr();
if ((pvr == PVR_460EX_RA) || (pvr == PVR_460EX_SE_RA) ||
(pvr == PVR_460EX_RB))
return 1;
return 0;
}
#endif /* defined(CONFIG_ARCHES) */
int board_early_init_f(void)
{
#if !defined(CONFIG_ARCHES)
u32 sdr0_cust0;
#endif
/*
* Setup the interrupt controller polarities, triggers, etc.
*/
mtdcr(UIC0SR, 0xffffffff); /* clear all */
mtdcr(UIC0ER, 0x00000000); /* disable all */
mtdcr(UIC0CR, 0x00000005); /* ATI & UIC1 crit are critical */
mtdcr(UIC0PR, 0xffffffff); /* per ref-board manual */
mtdcr(UIC0TR, 0x00000000); /* per ref-board manual */
mtdcr(UIC0VR, 0x00000000); /* int31 highest, base=0x000 */
mtdcr(UIC0SR, 0xffffffff); /* clear all */
mtdcr(UIC1SR, 0xffffffff); /* clear all */
mtdcr(UIC1ER, 0x00000000); /* disable all */
mtdcr(UIC1CR, 0x00000000); /* all non-critical */
mtdcr(UIC1PR, 0xffffffff); /* per ref-board manual */
mtdcr(UIC1TR, 0x00000000); /* per ref-board manual */
mtdcr(UIC1VR, 0x00000000); /* int31 highest, base=0x000 */
mtdcr(UIC1SR, 0xffffffff); /* clear all */
mtdcr(UIC2SR, 0xffffffff); /* clear all */
mtdcr(UIC2ER, 0x00000000); /* disable all */
mtdcr(UIC2CR, 0x00000000); /* all non-critical */
mtdcr(UIC2PR, 0xffffffff); /* per ref-board manual */
mtdcr(UIC2TR, 0x00000000); /* per ref-board manual */
mtdcr(UIC2VR, 0x00000000); /* int31 highest, base=0x000 */
mtdcr(UIC2SR, 0xffffffff); /* clear all */
mtdcr(UIC3SR, 0xffffffff); /* clear all */
mtdcr(UIC3ER, 0x00000000); /* disable all */
mtdcr(UIC3CR, 0x00000000); /* all non-critical */
mtdcr(UIC3PR, 0xffffffff); /* per ref-board manual */
mtdcr(UIC3TR, 0x00000000); /* per ref-board manual */
mtdcr(UIC3VR, 0x00000000); /* int31 highest, base=0x000 */
mtdcr(UIC3SR, 0xffffffff); /* clear all */
#if !defined(CONFIG_ARCHES)
/* SDR Setting - enable NDFC */
mfsdr(SDR0_CUST0, sdr0_cust0);
sdr0_cust0 = SDR0_CUST0_MUX_NDFC_SEL |
SDR0_CUST0_NDFC_ENABLE |
SDR0_CUST0_NDFC_BW_8_BIT |
SDR0_CUST0_NDFC_ARE_MASK |
SDR0_CUST0_NDFC_BAC_ENCODE(3) |
(0x80000000 >> (28 + CONFIG_SYS_NAND_CS));
mtsdr(SDR0_CUST0, sdr0_cust0);
#endif
/*
* Configure PFC (Pin Function Control) registers
* UART0: 4 pins
*/
mtsdr(SDR0_PFC1, 0x00040000);
/* Enable PCI host functionality in SDR0_PCI0 */
mtsdr(SDR0_PCI0, 0xe0000000);
#if !defined(CONFIG_ARCHES)
/* Enable ethernet and take out of reset */
out_8((void *)CONFIG_SYS_BCSR_BASE + 6, 0);
/* Remove NOR-FLASH, NAND-FLASH & EEPROM hardware write protection */
out_8((void *)CONFIG_SYS_BCSR_BASE + 5, 0);
/* Enable USB host & USB-OTG */
out_8((void *)CONFIG_SYS_BCSR_BASE + 7, 0);
mtsdr(SDR0_SRST1, 0); /* Pull AHB out of reset default=1 */
/* Setup PLB4-AHB bridge based on the system address map */
mtdcr(AHB_TOP, 0x8000004B);
mtdcr(AHB_BOT, 0x8000004B);
if (pvr_460ex()) {
/*
* Configure USB-STP pins as alternate and not GPIO
* It seems to be neccessary to configure the STP pins as GPIO
* input at powerup (perhaps while USB reset is asserted). So
* we configure those pins to their "real" function now.
*/
gpio_config(16, GPIO_OUT, GPIO_ALT1, GPIO_OUT_1);
gpio_config(19, GPIO_OUT, GPIO_ALT1, GPIO_OUT_1);
}
#endif
return 0;
}
#if !defined(CONFIG_ARCHES)
static void canyonlands_sata_init(int board_type)
{
u32 reg;
if (board_type == BOARD_CANYONLANDS_SATA) {
/* Put SATA in reset */
SDR_WRITE(SDR0_SRST1, 0x00020001);
/* Set the phy for SATA, not PCI-E port 0 */
reg = SDR_READ(PESDR0_PHY_CTL_RST);
SDR_WRITE(PESDR0_PHY_CTL_RST, (reg & 0xeffffffc) | 0x00000001);
reg = SDR_READ(PESDR0_L0CLK);
SDR_WRITE(PESDR0_L0CLK, (reg & 0xfffffff8) | 0x00000007);
SDR_WRITE(PESDR0_L0CDRCTL, 0x00003111);
SDR_WRITE(PESDR0_L0DRV, 0x00000104);
/* Bring SATA out of reset */
SDR_WRITE(SDR0_SRST1, 0x00000000);
}
}
#endif /* !defined(CONFIG_ARCHES) */
int get_cpu_num(void)
{
int cpu = NA_OR_UNKNOWN_CPU;
#if defined(CONFIG_ARCHES)
int cpu_num;
cpu_num = board_fpga_read(0x3);
/* sanity check; assume cpu numbering starts and increments from 0 */
if ((cpu_num >= 0) && (cpu_num < CONFIG_BD_NUM_CPUS))
cpu = cpu_num;
#endif
return cpu;
}
#if !defined(CONFIG_ARCHES)
int checkboard(void)
{
char *s = getenv("serial#");
if (pvr_460ex()) {
printf("Board: Canyonlands - AMCC PPC460EX Evaluation Board");
if (in_8((void *)(CONFIG_SYS_BCSR_BASE + 3)) & CONFIG_SYS_BCSR3_PCIE)
gd->board_type = BOARD_CANYONLANDS_PCIE;
else
gd->board_type = BOARD_CANYONLANDS_SATA;
} else {
printf("Board: Glacier - AMCC PPC460GT Evaluation Board");
gd->board_type = BOARD_GLACIER;
}
switch (gd->board_type) {
case BOARD_CANYONLANDS_PCIE:
case BOARD_GLACIER:
puts(", 2*PCIe");
break;
case BOARD_CANYONLANDS_SATA:
puts(", 1*PCIe/1*SATA");
break;
}
printf(", Rev. %X", in_8((void *)(CONFIG_SYS_BCSR_BASE + 0)));
if (s != NULL) {
puts(", serial# ");
puts(s);
}
putc('\n');
canyonlands_sata_init(gd->board_type);
return (0);
}
#else /* defined(CONFIG_ARCHES) */
int checkboard(void)
{
char *s = getenv("serial#");
printf("Board: Arches - AMCC DUAL PPC460GT Reference Design\n");
printf(" Revision %02x.%02x ",
board_fpga_read(0x0), board_fpga_read(0x1));
gd->board_type = BOARD_ARCHES;
/* Only CPU0 has access to CPLD registers */
if (get_cpu_num() == 0) {
u8 cfg_sw = board_cpld_read(0x1);
printf("(FPGA=%02x, CPLD=%02x)\n",
board_fpga_read(0x2), board_cpld_read(0x0));
printf(" Configuration Switch %d%d%d%d\n",
((cfg_sw >> 3) & 0x01),
((cfg_sw >> 2) & 0x01),
((cfg_sw >> 1) & 0x01),
((cfg_sw >> 0) & 0x01));
} else
printf("(FPGA=%02x, CPLD=xx)\n", board_fpga_read(0x2));
if (s != NULL)
printf(" Serial# %s\n", s);
return 0;
}
#endif /* !defined(CONFIG_ARCHES) */
#if defined(CONFIG_NAND_U_BOOT)
/*
* NAND booting U-Boot version uses a fixed initialization, since the whole
* I2C SPD DIMM autodetection/calibration doesn't fit into the 4k of boot
* code.
*/
phys_size_t initdram(int board_type)
{
return CONFIG_SYS_MBYTES_SDRAM << 20;
}
#endif
/*
* pci_target_init
*
* The bootstrap configuration provides default settings for the pci
* inbound map (PIM). But the bootstrap config choices are limited and
* may not be sufficient for a given board.
*/
#if defined(CONFIG_PCI) && defined(CONFIG_SYS_PCI_TARGET_INIT)
void pci_target_init(struct pci_controller * hose )
{
/*
* Disable everything
*/
out_le32((void *)PCIL0_PIM0SA, 0); /* disable */
out_le32((void *)PCIL0_PIM1SA, 0); /* disable */
out_le32((void *)PCIL0_PIM2SA, 0); /* disable */
out_le32((void *)PCIL0_EROMBA, 0); /* disable expansion rom */
/*
* Map all of SDRAM to PCI address 0x0000_0000. Note that the 440
* strapping options to not support sizes such as 128/256 MB.
*/
out_le32((void *)PCIL0_PIM0LAL, CONFIG_SYS_SDRAM_BASE);
out_le32((void *)PCIL0_PIM0LAH, 0);
out_le32((void *)PCIL0_PIM0SA, ~(gd->ram_size - 1) | 1);
out_le32((void *)PCIL0_BAR0, 0);
/*
* Program the board's subsystem id/vendor id
*/
out_le16((void *)PCIL0_SBSYSVID, CONFIG_SYS_PCI_SUBSYS_VENDORID);
out_le16((void *)PCIL0_SBSYSID, CONFIG_SYS_PCI_SUBSYS_DEVICEID);
out_le16((void *)PCIL0_CMD, in16r(PCIL0_CMD) | PCI_COMMAND_MEMORY);
}
#endif /* defined(CONFIG_PCI) && defined(CONFIG_SYS_PCI_TARGET_INIT) */
#if defined(CONFIG_PCI)
/*
* is_pci_host
*
* This routine is called to determine if a pci scan should be
* performed. With various hardware environments (especially cPCI and
* PPMC) it's insufficient to depend on the state of the arbiter enable
* bit in the strap register, or generic host/adapter assumptions.
*
* Rather than hard-code a bad assumption in the general 440 code, the
* 440 pci code requires the board to decide at runtime.
*
* Return 0 for adapter mode, non-zero for host (monarch) mode.
*/
int is_pci_host(struct pci_controller *hose)
{
/* Board is always configured as host. */
return (1);
}
static struct pci_controller pcie_hose[2] = {{0},{0}};
void pcie_setup_hoses(int busno)
{
struct pci_controller *hose;
int i, bus;
int ret = 0;
char *env;
unsigned int delay;
int start;
/*
* assume we're called after the PCIX hose is initialized, which takes
* bus ID 0 and therefore start numbering PCIe's from 1.
*/
bus = busno;
/*
* Canyonlands with SATA enabled has only one PCIe slot
* (2nd one).
*/
if (gd->board_type == BOARD_CANYONLANDS_SATA)
start = 1;
else
start = 0;
for (i = start; i <= 1; i++) {
if (is_end_point(i))
ret = ppc4xx_init_pcie_endport(i);
else
ret = ppc4xx_init_pcie_rootport(i);
if (ret == -ENODEV)
continue;
if (ret) {
printf("PCIE%d: initialization as %s failed\n", i,
is_end_point(i) ? "endpoint" : "root-complex");
continue;
}
hose = &pcie_hose[i];
hose->first_busno = bus;
hose->last_busno = bus;
hose->current_busno = bus;
/* setup mem resource */
pci_set_region(hose->regions + 0,
CONFIG_SYS_PCIE_MEMBASE + i * CONFIG_SYS_PCIE_MEMSIZE,
CONFIG_SYS_PCIE_MEMBASE + i * CONFIG_SYS_PCIE_MEMSIZE,
CONFIG_SYS_PCIE_MEMSIZE,
PCI_REGION_MEM);
hose->region_count = 1;
pci_register_hose(hose);
if (is_end_point(i)) {
ppc4xx_setup_pcie_endpoint(hose, i);
/*
* Reson for no scanning is endpoint can not generate
* upstream configuration accesses.
*/
} else {
ppc4xx_setup_pcie_rootpoint(hose, i);
env = getenv ("pciscandelay");
if (env != NULL) {
delay = simple_strtoul(env, NULL, 10);
if (delay > 5)
printf("Warning, expect noticable delay before "
"PCIe scan due to 'pciscandelay' value!\n");
mdelay(delay * 1000);
}
/*
* Config access can only go down stream
*/
hose->last_busno = pci_hose_scan(hose);
bus = hose->last_busno + 1;
}
}
}
#endif /* CONFIG_PCI */
int board_early_init_r (void)
{
/*
* Canyonlands has 64MBytes of NOR FLASH (Spansion 29GL512), but the
* boot EBC mapping only supports a maximum of 16MBytes
* (4.ff00.0000 - 4.ffff.ffff).
* To solve this problem, the FLASH has to get remapped to another
* EBC address which accepts bigger regions:
*
* 0xfc00.0000 -> 4.cc00.0000
*/
/* Remap the NOR FLASH to 0xcc00.0000 ... 0xcfff.ffff */
#if defined(CONFIG_NAND_U_BOOT) || defined(CONFIG_NAND_SPL)
mtebc(PB3CR, CONFIG_SYS_FLASH_BASE_PHYS_L | 0xda000);
#else
mtebc(PB0CR, CONFIG_SYS_FLASH_BASE_PHYS_L | 0xda000);
#endif
/* Remove TLB entry of boot EBC mapping */
remove_tlb(CONFIG_SYS_BOOT_BASE_ADDR, 16 << 20);
/* Add TLB entry for 0xfc00.0000 -> 0x4.cc00.0000 */
program_tlb(CONFIG_SYS_FLASH_BASE_PHYS, CONFIG_SYS_FLASH_BASE, CONFIG_SYS_FLASH_SIZE,
TLB_WORD2_I_ENABLE);
/*
* Now accessing of the whole 64Mbytes of NOR FLASH at virtual address
* 0xfc00.0000 is possible
*/
/*
* Clear potential errors resulting from auto-calibration.
* If not done, then we could get an interrupt later on when
* exceptions are enabled.
*/
set_mcsr(get_mcsr());
return 0;
}
#if !defined(CONFIG_ARCHES)
int misc_init_r(void)
{
u32 sdr0_srst1 = 0;
u32 eth_cfg;
u8 val;
/*
* Set EMAC mode/configuration (GMII, SGMII, RGMII...).
* This is board specific, so let's do it here.
*/
mfsdr(SDR0_ETH_CFG, eth_cfg);
/* disable SGMII mode */
eth_cfg &= ~(SDR0_ETH_CFG_SGMII2_ENABLE |
SDR0_ETH_CFG_SGMII1_ENABLE |
SDR0_ETH_CFG_SGMII0_ENABLE);
/* Set the for 2 RGMII mode */
/* GMC0 EMAC4_0, GMC0 EMAC4_1, RGMII Bridge 0 */
eth_cfg &= ~SDR0_ETH_CFG_GMC0_BRIDGE_SEL;
if (pvr_460ex())
eth_cfg |= SDR0_ETH_CFG_GMC1_BRIDGE_SEL;
else
eth_cfg &= ~SDR0_ETH_CFG_GMC1_BRIDGE_SEL;
mtsdr(SDR0_ETH_CFG, eth_cfg);
/*
* The AHB Bridge core is held in reset after power-on or reset
* so enable it now
*/
mfsdr(SDR0_SRST1, sdr0_srst1);
sdr0_srst1 &= ~SDR0_SRST1_AHB;
mtsdr(SDR0_SRST1, sdr0_srst1);
/*
* RTC/M41T62:
* Disable square wave output: Batterie will be drained
* quickly, when this output is not disabled
*/
val = i2c_reg_read(CONFIG_SYS_I2C_RTC_ADDR, 0xa);
val &= ~0x40;
i2c_reg_write(CONFIG_SYS_I2C_RTC_ADDR, 0xa, val);
return 0;
}
#else /* defined(CONFIG_ARCHES) */
int misc_init_r(void)
{
u32 eth_cfg = 0;
u32 eth_pll;
u32 reg;
/*
* Set EMAC mode/configuration (GMII, SGMII, RGMII...).
* This is board specific, so let's do it here.
*/
/* enable SGMII mode */
eth_cfg |= (SDR0_ETH_CFG_SGMII0_ENABLE |
SDR0_ETH_CFG_SGMII1_ENABLE |
SDR0_ETH_CFG_SGMII2_ENABLE);
/* Set EMAC for MDIO */
eth_cfg |= SDR0_ETH_CFG_MDIO_SEL_EMAC0;
/* bypass the TAHOE0/TAHOE1 cores for U-Boot */
eth_cfg |= (SDR0_ETH_CFG_TAHOE0_BYPASS | SDR0_ETH_CFG_TAHOE1_BYPASS);
mtsdr(SDR0_ETH_CFG, eth_cfg);
/* reset all SGMII interfaces */
mfsdr(SDR0_SRST1, reg);
reg |= (SDR0_SRST1_SGMII0 | SDR0_SRST1_SGMII1 | SDR0_SRST1_SGMII2);
mtsdr(SDR0_SRST1, reg);
mtsdr(SDR0_ETH_STS, 0xFFFFFFFF);
mtsdr(SDR0_SRST1, 0x00000000);
do {
mfsdr(SDR0_ETH_PLL, eth_pll);
} while (!(eth_pll & SDR0_ETH_PLL_PLLLOCK));
return 0;
}
#endif /* !defined(CONFIG_ARCHES) */
#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
extern void __ft_board_setup(void *blob, bd_t *bd);
void ft_board_setup(void *blob, bd_t *bd)
{
__ft_board_setup(blob, bd);
if (gd->board_type == BOARD_CANYONLANDS_SATA) {
/*
* When SATA is selected we need to disable the first PCIe
* node in the device tree, so that Linux doesn't initialize
* it.
*/
fdt_find_and_setprop(blob, "/plb/pciex@d00000000", "status",
"disabled", sizeof("disabled"), 1);
}
if (gd->board_type == BOARD_CANYONLANDS_PCIE) {
/*
* When PCIe is selected we need to disable the SATA
* node in the device tree, so that Linux doesn't initialize
* it.
*/
fdt_find_and_setprop(blob, "/plb/sata@bffd1000", "status",
"disabled", sizeof("disabled"), 1);
}
}
#endif /* defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) */
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