upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
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519 lines
13 KiB
519 lines
13 KiB
/*
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* (C) Copyright 2008
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* Stefan Roese, DENX Software Engineering, sr@denx.de.
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <asm/ppc440.h>
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#include <libfdt.h>
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#include <fdt_support.h>
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#include <i2c.h>
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#include <asm/processor.h>
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#include <asm/io.h>
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#include <asm/mmu.h>
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#include <asm/4xx_pcie.h>
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#include <asm/ppc4xx-gpio.h>
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#include <asm/errno.h>
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#include <usb.h>
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extern flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */
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DECLARE_GLOBAL_DATA_PTR;
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struct board_bcsr {
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u8 board_id;
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u8 cpld_rev;
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u8 led_user;
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u8 board_status;
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u8 reset_ctrl;
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u8 flash_ctrl;
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u8 eth_ctrl;
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u8 usb_ctrl;
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u8 irq_ctrl;
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};
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#define BOARD_CANYONLANDS_PCIE 1
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#define BOARD_CANYONLANDS_SATA 2
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#define BOARD_GLACIER 3
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#define BOARD_ARCHES 4
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/*
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* Override the default functions in arch/powerpc/cpu/ppc4xx/44x_spd_ddr2.c with
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* board specific values.
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*/
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#if defined(CONFIG_ARCHES)
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u32 ddr_wrdtr(u32 default_val) {
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return (SDRAM_WRDTR_LLWP_1_CYC | SDRAM_WRDTR_WTR_0_DEG | 0x823);
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}
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#else
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u32 ddr_wrdtr(u32 default_val) {
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return (SDRAM_WRDTR_LLWP_1_CYC | SDRAM_WRDTR_WTR_180_DEG_ADV | 0x823);
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}
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u32 ddr_clktr(u32 default_val) {
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return (SDRAM_CLKTR_CLKP_90_DEG_ADV);
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}
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#endif
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#if defined(CONFIG_ARCHES)
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/*
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* FPGA read/write helper macros
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*/
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static inline int board_fpga_read(int offset)
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{
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int data;
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data = in_8((void *)(CONFIG_SYS_FPGA_BASE + offset));
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return data;
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}
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static inline void board_fpga_write(int offset, int data)
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{
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out_8((void *)(CONFIG_SYS_FPGA_BASE + offset), data);
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}
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/*
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* CPLD read/write helper macros
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*/
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static inline int board_cpld_read(int offset)
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{
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int data;
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out_8((void *)(CONFIG_SYS_CPLD_ADDR), offset);
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data = in_8((void *)(CONFIG_SYS_CPLD_DATA));
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return data;
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}
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static inline void board_cpld_write(int offset, int data)
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{
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out_8((void *)(CONFIG_SYS_CPLD_ADDR), offset);
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out_8((void *)(CONFIG_SYS_CPLD_DATA), data);
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}
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#else
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static int pvr_460ex(void)
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{
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u32 pvr = get_pvr();
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if ((pvr == PVR_460EX_RA) || (pvr == PVR_460EX_SE_RA) ||
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(pvr == PVR_460EX_RB))
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return 1;
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return 0;
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}
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#endif /* defined(CONFIG_ARCHES) */
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int board_early_init_f(void)
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{
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#if !defined(CONFIG_ARCHES)
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u32 sdr0_cust0;
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struct board_bcsr *bcsr_data =
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(struct board_bcsr *)CONFIG_SYS_BCSR_BASE;
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#endif
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/*
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* Setup the interrupt controller polarities, triggers, etc.
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*/
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mtdcr(UIC0SR, 0xffffffff); /* clear all */
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mtdcr(UIC0ER, 0x00000000); /* disable all */
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mtdcr(UIC0CR, 0x00000005); /* ATI & UIC1 crit are critical */
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mtdcr(UIC0PR, 0xffffffff); /* per ref-board manual */
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mtdcr(UIC0TR, 0x00000000); /* per ref-board manual */
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mtdcr(UIC0VR, 0x00000000); /* int31 highest, base=0x000 */
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mtdcr(UIC0SR, 0xffffffff); /* clear all */
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mtdcr(UIC1SR, 0xffffffff); /* clear all */
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mtdcr(UIC1ER, 0x00000000); /* disable all */
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mtdcr(UIC1CR, 0x00000000); /* all non-critical */
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mtdcr(UIC1PR, 0xffffffff); /* per ref-board manual */
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mtdcr(UIC1TR, 0x00000000); /* per ref-board manual */
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mtdcr(UIC1VR, 0x00000000); /* int31 highest, base=0x000 */
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mtdcr(UIC1SR, 0xffffffff); /* clear all */
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mtdcr(UIC2SR, 0xffffffff); /* clear all */
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mtdcr(UIC2ER, 0x00000000); /* disable all */
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mtdcr(UIC2CR, 0x00000000); /* all non-critical */
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mtdcr(UIC2PR, 0xffffffff); /* per ref-board manual */
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mtdcr(UIC2TR, 0x00000000); /* per ref-board manual */
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mtdcr(UIC2VR, 0x00000000); /* int31 highest, base=0x000 */
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mtdcr(UIC2SR, 0xffffffff); /* clear all */
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mtdcr(UIC3SR, 0xffffffff); /* clear all */
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mtdcr(UIC3ER, 0x00000000); /* disable all */
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mtdcr(UIC3CR, 0x00000000); /* all non-critical */
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mtdcr(UIC3PR, 0xffffffff); /* per ref-board manual */
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mtdcr(UIC3TR, 0x00000000); /* per ref-board manual */
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mtdcr(UIC3VR, 0x00000000); /* int31 highest, base=0x000 */
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mtdcr(UIC3SR, 0xffffffff); /* clear all */
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#if !defined(CONFIG_ARCHES)
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/* SDR Setting - enable NDFC */
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mfsdr(SDR0_CUST0, sdr0_cust0);
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sdr0_cust0 = SDR0_CUST0_MUX_NDFC_SEL |
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SDR0_CUST0_NDFC_ENABLE |
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SDR0_CUST0_NDFC_BW_8_BIT |
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SDR0_CUST0_NDFC_ARE_MASK |
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SDR0_CUST0_NDFC_BAC_ENCODE(3) |
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(0x80000000 >> (28 + CONFIG_SYS_NAND_CS));
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mtsdr(SDR0_CUST0, sdr0_cust0);
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#endif
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/*
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* Configure PFC (Pin Function Control) registers
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* UART0: 4 pins
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*/
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mtsdr(SDR0_PFC1, 0x00040000);
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/* Enable PCI host functionality in SDR0_PCI0 */
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mtsdr(SDR0_PCI0, 0xe0000000);
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#if !defined(CONFIG_ARCHES)
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/* Enable ethernet and take out of reset */
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out_8(&bcsr_data->eth_ctrl, 0) ;
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/* Remove NOR-FLASH, NAND-FLASH & EEPROM hardware write protection */
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out_8(&bcsr_data->flash_ctrl, 0) ;
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mtsdr(SDR0_SRST1, 0); /* Pull AHB out of reset default=1 */
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/* Setup PLB4-AHB bridge based on the system address map */
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mtdcr(AHB_TOP, 0x8000004B);
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mtdcr(AHB_BOT, 0x8000004B);
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#endif
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return 0;
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}
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#if defined(CONFIG_USB_OHCI_NEW) && defined(CONFIG_SYS_USB_OHCI_BOARD_INIT)
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int board_usb_init(int index, enum usb_init_type init)
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{
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struct board_bcsr *bcsr_data =
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(struct board_bcsr *)CONFIG_SYS_BCSR_BASE;
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u8 val;
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/* Enable USB host & USB-OTG */
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val = in_8(&bcsr_data->usb_ctrl);
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val &= ~(BCSR_USBCTRL_OTG_RST | BCSR_USBCTRL_HOST_RST);
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out_8(&bcsr_data->usb_ctrl, val);
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/*
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* Configure USB-STP pins as alternate and not GPIO
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* It seems to be neccessary to configure the STP pins as GPIO
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* input at powerup (perhaps while USB reset is asserted). So
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* we configure those pins to their "real" function now.
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*/
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gpio_config(16, GPIO_OUT, GPIO_ALT1, GPIO_OUT_1);
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gpio_config(19, GPIO_OUT, GPIO_ALT1, GPIO_OUT_1);
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return 0;
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}
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int usb_board_stop(void)
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{
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struct board_bcsr *bcsr_data =
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(struct board_bcsr *)CONFIG_SYS_BCSR_BASE;
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u8 val;
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/* Disable USB host & USB-OTG */
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val = in_8(&bcsr_data->usb_ctrl);
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val |= (BCSR_USBCTRL_OTG_RST | BCSR_USBCTRL_HOST_RST);
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out_8(&bcsr_data->usb_ctrl, val);
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/* Reconfigure USB-STP pins as input */
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gpio_config(16, GPIO_IN , GPIO_SEL, GPIO_OUT_0);
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gpio_config(19, GPIO_IN , GPIO_SEL, GPIO_OUT_0);
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return 0;
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}
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int board_usb_cleanup(int index, enum usb_init_type init)
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{
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return usb_board_stop();
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}
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#endif /* CONFIG_USB_OHCI_NEW && CONFIG_SYS_USB_OHCI_BOARD_INIT */
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#if !defined(CONFIG_ARCHES)
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static void canyonlands_sata_init(int board_type)
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{
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u32 reg;
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if (board_type == BOARD_CANYONLANDS_SATA) {
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/* Put SATA in reset */
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SDR_WRITE(SDR0_SRST1, 0x00020001);
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/* Set the phy for SATA, not PCI-E port 0 */
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reg = SDR_READ(PESDR0_PHY_CTL_RST);
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SDR_WRITE(PESDR0_PHY_CTL_RST, (reg & 0xeffffffc) | 0x00000001);
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reg = SDR_READ(PESDR0_L0CLK);
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SDR_WRITE(PESDR0_L0CLK, (reg & 0xfffffff8) | 0x00000007);
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SDR_WRITE(PESDR0_L0CDRCTL, 0x00003111);
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SDR_WRITE(PESDR0_L0DRV, 0x00000104);
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/* Bring SATA out of reset */
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SDR_WRITE(SDR0_SRST1, 0x00000000);
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}
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}
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#endif /* !defined(CONFIG_ARCHES) */
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int get_cpu_num(void)
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{
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int cpu = NA_OR_UNKNOWN_CPU;
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#if defined(CONFIG_ARCHES)
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int cpu_num;
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cpu_num = board_fpga_read(0x3);
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/* sanity check; assume cpu numbering starts and increments from 0 */
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if ((cpu_num >= 0) && (cpu_num < CONFIG_BD_NUM_CPUS))
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cpu = cpu_num;
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#endif
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return cpu;
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}
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#if !defined(CONFIG_ARCHES)
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int checkboard(void)
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{
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struct board_bcsr *bcsr_data =
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(struct board_bcsr *)CONFIG_SYS_BCSR_BASE;
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char buf[64];
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int i = getenv_f("serial#", buf, sizeof(buf));
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if (pvr_460ex()) {
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printf("Board: Canyonlands - AMCC PPC460EX Evaluation Board");
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if (in_8(&bcsr_data->board_status) & BCSR_SELECT_PCIE)
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gd->board_type = BOARD_CANYONLANDS_PCIE;
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else
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gd->board_type = BOARD_CANYONLANDS_SATA;
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} else {
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printf("Board: Glacier - AMCC PPC460GT Evaluation Board");
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gd->board_type = BOARD_GLACIER;
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}
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switch (gd->board_type) {
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case BOARD_CANYONLANDS_PCIE:
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case BOARD_GLACIER:
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puts(", 2*PCIe");
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break;
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case BOARD_CANYONLANDS_SATA:
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puts(", 1*PCIe/1*SATA");
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break;
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}
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printf(", Rev. %X", in_8(&bcsr_data->cpld_rev));
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if (i > 0) {
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puts(", serial# ");
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puts(buf);
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}
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putc('\n');
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canyonlands_sata_init(gd->board_type);
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return (0);
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}
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#else /* defined(CONFIG_ARCHES) */
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int checkboard(void)
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{
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char *s = getenv("serial#");
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printf("Board: Arches - AMCC DUAL PPC460GT Reference Design\n");
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printf(" Revision %02x.%02x ",
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board_fpga_read(0x0), board_fpga_read(0x1));
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gd->board_type = BOARD_ARCHES;
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/* Only CPU0 has access to CPLD registers */
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if (get_cpu_num() == 0) {
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u8 cfg_sw = board_cpld_read(0x1);
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printf("(FPGA=%02x, CPLD=%02x)\n",
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board_fpga_read(0x2), board_cpld_read(0x0));
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printf(" Configuration Switch %d%d%d%d\n",
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((cfg_sw >> 3) & 0x01),
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((cfg_sw >> 2) & 0x01),
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((cfg_sw >> 1) & 0x01),
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((cfg_sw >> 0) & 0x01));
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} else
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printf("(FPGA=%02x, CPLD=xx)\n", board_fpga_read(0x2));
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if (s != NULL)
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printf(" Serial# %s\n", s);
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return 0;
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}
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#endif /* !defined(CONFIG_ARCHES) */
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#if defined(CONFIG_PCI)
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int board_pcie_first(void)
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{
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/*
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* Canyonlands with SATA enabled has only one PCIe slot
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* (2nd one).
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*/
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if (gd->board_type == BOARD_CANYONLANDS_SATA)
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return 1;
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return 0;
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}
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#endif /* CONFIG_PCI */
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int board_early_init_r (void)
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{
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/*
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* Canyonlands has 64MBytes of NOR FLASH (Spansion 29GL512), but the
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* boot EBC mapping only supports a maximum of 16MBytes
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* (4.ff00.0000 - 4.ffff.ffff).
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* To solve this problem, the FLASH has to get remapped to another
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* EBC address which accepts bigger regions:
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*
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* 0xfc00.0000 -> 4.cc00.0000
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*/
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/* Remap the NOR FLASH to 0xcc00.0000 ... 0xcfff.ffff */
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mtebc(PB0CR, CONFIG_SYS_FLASH_BASE_PHYS_L | 0xda000);
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/* Remove TLB entry of boot EBC mapping */
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remove_tlb(CONFIG_SYS_BOOT_BASE_ADDR, 16 << 20);
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/* Add TLB entry for 0xfc00.0000 -> 0x4.cc00.0000 */
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program_tlb(CONFIG_SYS_FLASH_BASE_PHYS, CONFIG_SYS_FLASH_BASE, CONFIG_SYS_FLASH_SIZE,
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TLB_WORD2_I_ENABLE);
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/*
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* Now accessing of the whole 64Mbytes of NOR FLASH at virtual address
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* 0xfc00.0000 is possible
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*/
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/*
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* Clear potential errors resulting from auto-calibration.
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* If not done, then we could get an interrupt later on when
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* exceptions are enabled.
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*/
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set_mcsr(get_mcsr());
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return 0;
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}
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#if !defined(CONFIG_ARCHES)
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int misc_init_r(void)
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{
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u32 sdr0_srst1 = 0;
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u32 eth_cfg;
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u8 val;
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/*
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* Set EMAC mode/configuration (GMII, SGMII, RGMII...).
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* This is board specific, so let's do it here.
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*/
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mfsdr(SDR0_ETH_CFG, eth_cfg);
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/* disable SGMII mode */
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eth_cfg &= ~(SDR0_ETH_CFG_SGMII2_ENABLE |
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SDR0_ETH_CFG_SGMII1_ENABLE |
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SDR0_ETH_CFG_SGMII0_ENABLE);
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/* Set the for 2 RGMII mode */
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/* GMC0 EMAC4_0, GMC0 EMAC4_1, RGMII Bridge 0 */
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eth_cfg &= ~SDR0_ETH_CFG_GMC0_BRIDGE_SEL;
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if (pvr_460ex())
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eth_cfg |= SDR0_ETH_CFG_GMC1_BRIDGE_SEL;
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else
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eth_cfg &= ~SDR0_ETH_CFG_GMC1_BRIDGE_SEL;
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mtsdr(SDR0_ETH_CFG, eth_cfg);
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/*
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* The AHB Bridge core is held in reset after power-on or reset
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* so enable it now
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*/
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mfsdr(SDR0_SRST1, sdr0_srst1);
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sdr0_srst1 &= ~SDR0_SRST1_AHB;
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mtsdr(SDR0_SRST1, sdr0_srst1);
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/*
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* RTC/M41T62:
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* Disable square wave output: Batterie will be drained
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* quickly, when this output is not disabled
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*/
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val = i2c_reg_read(CONFIG_SYS_I2C_RTC_ADDR, 0xa);
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val &= ~0x40;
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i2c_reg_write(CONFIG_SYS_I2C_RTC_ADDR, 0xa, val);
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return 0;
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}
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#else /* defined(CONFIG_ARCHES) */
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int misc_init_r(void)
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{
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u32 eth_cfg = 0;
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u32 eth_pll;
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u32 reg;
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/*
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* Set EMAC mode/configuration (GMII, SGMII, RGMII...).
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* This is board specific, so let's do it here.
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*/
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/* enable SGMII mode */
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eth_cfg |= (SDR0_ETH_CFG_SGMII0_ENABLE |
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SDR0_ETH_CFG_SGMII1_ENABLE |
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SDR0_ETH_CFG_SGMII2_ENABLE);
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/* Set EMAC for MDIO */
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eth_cfg |= SDR0_ETH_CFG_MDIO_SEL_EMAC0;
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/* bypass the TAHOE0/TAHOE1 cores for U-Boot */
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eth_cfg |= (SDR0_ETH_CFG_TAHOE0_BYPASS | SDR0_ETH_CFG_TAHOE1_BYPASS);
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mtsdr(SDR0_ETH_CFG, eth_cfg);
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/* reset all SGMII interfaces */
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mfsdr(SDR0_SRST1, reg);
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reg |= (SDR0_SRST1_SGMII0 | SDR0_SRST1_SGMII1 | SDR0_SRST1_SGMII2);
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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) */
|
|
|