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u-boot/board/freescale/p1_twr/p1_twr.c
Simon Glass e895a4b06f fdt: Allow ft_board_setup() to report failure 
This function can fail if the device tree runs out of space. Rather than
silently booting with an incomplete device tree, allow the failure to be
detected.

Unfortunately this involves changing a lot of places in the code. I have
not changed behvaiour to return an error where one is not currently
returned, to avoid unexpected breakage.

Eventually it would be nice to allow boards to register functions to be
called to update the device tree. This would avoid all the many functions
to do this. However it's not clear yet if this should be done using driver
model or with a linker list. This work is left for later.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Anatolij Gustschin <agust@denx.de>
2014-11-21 04:43:15 +01:00

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/*
* Copyright 2013 Freescale Semiconductor, Inc.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <command.h>
#include <hwconfig.h>
#include <pci.h>
#include <i2c.h>
#include <asm/processor.h>
#include <asm/mmu.h>
#include <asm/cache.h>
#include <asm/immap_85xx.h>
#include <asm/fsl_pci.h>
#include <fsl_ddr_sdram.h>
#include <asm/io.h>
#include <asm/fsl_law.h>
#include <asm/fsl_lbc.h>
#include <asm/mp.h>
#include <miiphy.h>
#include <libfdt.h>
#include <fdt_support.h>
#include <fsl_mdio.h>
#include <tsec.h>
#include <ioports.h>
#include <asm/fsl_serdes.h>
#include <netdev.h>
#define SYSCLK_64 64000000
#define SYSCLK_66 66666666
unsigned long get_board_sys_clk(ulong dummy)
{
ccsr_gur_t *gur = (void __iomem *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
par_io_t *par_io = (par_io_t *) &(gur->qe_par_io);
unsigned int cpdat_val = 0;
/* Set-up up pin muxing based on board switch settings */
cpdat_val = par_io[1].cpdat;
/* Check switch setting for SYSCLK select (PB3) */
if (cpdat_val & 0x10000000)
return SYSCLK_64;
else
return SYSCLK_66;
return 0;
}
#ifdef CONFIG_QE
#define PCA_IOPORT_I2C_ADDR 0x23
#define PCA_IOPORT_OUTPUT_CMD 0x2
#define PCA_IOPORT_CFG_CMD 0x6
const qe_iop_conf_t qe_iop_conf_tab[] = {
#ifdef CONFIG_TWR_P1025
/* GPIO */
{1, 0, 1, 0, 0},
{1, 18, 1, 0, 0},
/* GPIO for switch options */
{1, 2, 2, 0, 0}, /* PROFIBUS_MODE_SEL */
{1, 3, 2, 0, 0}, /* SYS_CLK_SELECT */
{1, 29, 2, 0, 0}, /* LOCALBUS_QE_MUXSEL */
{1, 30, 2, 0, 0}, /* ETH_TDM_SEL */
/* QE_MUX_MDC */
{1, 19, 1, 0, 1}, /* QE_MUX_MDC */
/* QE_MUX_MDIO */
{1, 20, 3, 0, 1}, /* QE_MUX_MDIO */
/* UCC_1_MII */
{0, 23, 2, 0, 2}, /* CLK12 */
{0, 24, 2, 0, 1}, /* CLK9 */
{0, 7, 1, 0, 2}, /* ENET1_TXD0_SER1_TXD0 */
{0, 9, 1, 0, 2}, /* ENET1_TXD1_SER1_TXD1 */
{0, 11, 1, 0, 2}, /* ENET1_TXD2_SER1_TXD2 */
{0, 12, 1, 0, 2}, /* ENET1_TXD3_SER1_TXD3 */
{0, 6, 2, 0, 2}, /* ENET1_RXD0_SER1_RXD0 */
{0, 10, 2, 0, 2}, /* ENET1_RXD1_SER1_RXD1 */
{0, 14, 2, 0, 2}, /* ENET1_RXD2_SER1_RXD2 */
{0, 15, 2, 0, 2}, /* ENET1_RXD3_SER1_RXD3 */
{0, 5, 1, 0, 2}, /* ENET1_TX_EN_SER1_RTS_B */
{0, 13, 1, 0, 2}, /* ENET1_TX_ER */
{0, 4, 2, 0, 2}, /* ENET1_RX_DV_SER1_CTS_B */
{0, 8, 2, 0, 2}, /* ENET1_RX_ER_SER1_CD_B */
{0, 17, 2, 0, 2}, /* ENET1_CRS */
{0, 16, 2, 0, 2}, /* ENET1_COL */
/* UCC_5_RMII */
{1, 11, 2, 0, 1}, /* CLK13 */
{1, 7, 1, 0, 2}, /* ENET5_TXD0_SER5_TXD0 */
{1, 10, 1, 0, 2}, /* ENET5_TXD1_SER5_TXD1 */
{1, 6, 2, 0, 2}, /* ENET5_RXD0_SER5_RXD0 */
{1, 9, 2, 0, 2}, /* ENET5_RXD1_SER5_RXD1 */
{1, 5, 1, 0, 2}, /* ENET5_TX_EN_SER5_RTS_B */
{1, 4, 2, 0, 2}, /* ENET5_RX_DV_SER5_CTS_B */
{1, 8, 2, 0, 2}, /* ENET5_RX_ER_SER5_CD_B */
/* TDMA - clock option is configured in OS based on board setting */
{1, 23, 2, 0, 2}, /* TDMA_TXD */
{1, 25, 2, 0, 2}, /* TDMA_RXD */
{1, 26, 1, 0, 2}, /* TDMA_SYNC */
#endif
{0, 0, 0, 0, QE_IOP_TAB_END} /* END of table */
};
#endif
int board_early_init_f(void)
{
ccsr_gur_t *gur = (void __iomem *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
setbits_be32(&gur->pmuxcr,
(MPC85xx_PMUXCR_SDHC_CD | MPC85xx_PMUXCR_SDHC_WP));
/* SDHC_DAT[4:7] not exposed to pins (use as SPI) */
clrbits_be32(&gur->pmuxcr, MPC85xx_PMUXCR_SD_DATA);
return 0;
}
int checkboard(void)
{
ccsr_gur_t *gur = (void __iomem *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
u8 boot_status;
printf("Board: %s\n", CONFIG_BOARDNAME);
boot_status = ((gur->porbmsr) >> MPC85xx_PORBMSR_ROMLOC_SHIFT) & 0xf;
puts("rom_loc: ");
if (boot_status == PORBMSR_ROMLOC_NOR)
puts("nor flash");
else if (boot_status == PORBMSR_ROMLOC_SDHC)
puts("sd");
else
puts("unknown");
puts("\n");
return 0;
}
#ifdef CONFIG_PCI
void pci_init_board(void)
{
fsl_pcie_init_board(0);
}
#endif
int board_early_init_r(void)
{
const unsigned int flashbase = CONFIG_SYS_FLASH_BASE;
int flash_esel = find_tlb_idx((void *)flashbase, 1);
/*
* Remap Boot flash region to caching-inhibited
* so that flash can be erased properly.
*/
/* Flush d-cache and invalidate i-cache of any FLASH data */
flush_dcache();
invalidate_icache();
if (flash_esel == -1) {
/* very unlikely unless something is messed up */
puts("Error: Could not find TLB for FLASH BASE\n");
flash_esel = 2; /* give our best effort to continue */
} else {
/* invalidate existing TLB entry for flash */
disable_tlb(flash_esel);
}
set_tlb(1, flashbase, CONFIG_SYS_FLASH_BASE_PHYS, /* tlb, epn, rpn */
MAS3_SW|MAS3_SR, MAS2_I|MAS2_G, /* perms, wimge */
0, flash_esel, BOOKE_PAGESZ_64M, 1);/* ts, esel, tsize, iprot */
return 0;
}
int board_eth_init(bd_t *bis)
{
struct fsl_pq_mdio_info mdio_info;
struct tsec_info_struct tsec_info[4];
ccsr_gur_t *gur __attribute__((unused)) =
(void __iomem *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
int num = 0;
#ifdef CONFIG_TSEC1
SET_STD_TSEC_INFO(tsec_info[num], 1);
num++;
#endif
#ifdef CONFIG_TSEC2
SET_STD_TSEC_INFO(tsec_info[num], 2);
if (is_serdes_configured(SGMII_TSEC2)) {
printf("eTSEC2 is in sgmii mode.\n");
tsec_info[num].flags |= TSEC_SGMII;
}
num++;
#endif
#ifdef CONFIG_TSEC3
SET_STD_TSEC_INFO(tsec_info[num], 3);
num++;
#endif
if (!num) {
printf("No TSECs initialized\n");
return 0;
}
mdio_info.regs = (struct tsec_mii_mng *)CONFIG_SYS_MDIO_BASE_ADDR;
mdio_info.name = DEFAULT_MII_NAME;
fsl_pq_mdio_init(bis, &mdio_info);
tsec_eth_init(bis, tsec_info, num);
#if defined(CONFIG_UEC_ETH)
/* QE0 and QE3 need to be exposed for UCC1
* and UCC5 Eth mode (in PMUXCR register).
* Currently QE/LBC muxed pins assumed to be
* LBC for U-Boot and PMUXCR updated by OS if required */
uec_standard_init(bis);
#endif
return pci_eth_init(bis);
}
#if defined(CONFIG_QE)
static void fdt_board_fixup_qe_pins(void *blob)
{
int node;
if (!hwconfig("qe")) {
/* For QE and eLBC pins multiplexing,
* When don't use QE function, remove
* qe node from dt blob.
*/
node = fdt_path_offset(blob, "/qe");
if (node >= 0)
fdt_del_node(blob, node);
} else {
/* For TWR Peripheral Modules - TWR-SER2
* board only can support Signal Port MII,
* so delete one UEC node when use MII port.
*/
if (hwconfig("mii"))
node = fdt_path_offset(blob, "/qe/ucc@2400");
else
node = fdt_path_offset(blob, "/qe/ucc@2000");
if (node >= 0)
fdt_del_node(blob, node);
}
return;
}
#endif
#ifdef CONFIG_OF_BOARD_SETUP
int ft_board_setup(void *blob, bd_t *bd)
{
phys_addr_t base;
phys_size_t size;
ft_cpu_setup(blob, bd);
base = getenv_bootm_low();
size = getenv_bootm_size();
fdt_fixup_memory(blob, (u64)base, (u64)size);
FT_FSL_PCI_SETUP;
#ifdef CONFIG_QE
do_fixup_by_compat(blob, "fsl,qe", "status", "okay",
sizeof("okay"), 0);
#endif
#if defined(CONFIG_TWR_P1025)
fdt_board_fixup_qe_pins(blob);
#endif
fdt_fixup_dr_usb(blob, bd);
return 0;
}
#endif
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