From 487e8abbaa1ecf8f25dc1af3a572768cca3b094a Mon Sep 17 00:00:00 2001 From: Shengzhou Liu Date: Wed, 25 Apr 2012 23:43:24 +0000 Subject: [PATCH] powerpc/p1010rdb: update mux config of p1010rdb board On p1010rdb some signals are muxed for tdm/can/uart/flash. If we don't set fsl_p1010mux:tdm_can to "can" or "tdm" explicitly, defaultly we keep spi chip selection to spi-flash instead of to tdm/slic and disable uart1 when not using flexcan, as well disable sdhc. Signed-off-by: Shengzhou Liu --- board/freescale/p1010rdb/p1010rdb.c | 56 +++++++++++++++++++++++++++++-------- 1 file changed, 44 insertions(+), 12 deletions(-) diff --git a/board/freescale/p1010rdb/p1010rdb.c b/board/freescale/p1010rdb/p1010rdb.c index 79a6ead..02ba740 100644 --- a/board/freescale/p1010rdb/p1010rdb.c +++ b/board/freescale/p1010rdb/p1010rdb.c @@ -252,6 +252,31 @@ void fdt_del_tdm(void *blob) } } +void fdt_del_sdhc(void *blob) +{ + int nodeoff = 0; + + while ((nodeoff = fdt_node_offset_by_compatible(blob, 0, + "fsl,esdhc")) >= 0) { + fdt_del_node(blob, nodeoff); + } +} + +void fdt_disable_uart1(void *blob) +{ + int nodeoff; + + nodeoff = fdt_node_offset_by_compat_reg(blob, "fsl,ns16550", + CONFIG_SYS_NS16550_COM2); + + if (nodeoff > 0) { + fdt_status_disabled(blob, nodeoff); + } else { + printf("WARNING unable to set status for fsl,ns16550 " + "uart1: %s\n", fdt_strerror(nodeoff)); + } +} + void ft_board_setup(void *blob, bd_t *bd) { phys_addr_t base; @@ -281,19 +306,26 @@ void ft_board_setup(void *blob, bd_t *bd) fdt_del_node_and_alias(blob, "ethernet2"); } #ifndef CONFIG_SDCARD + /* disable sdhc due to sdhc bug */ + fdt_del_sdhc(blob); if (hwconfig_subarg_cmp("fsl_p1010mux", "tdm_can", "can")) { - printf("fdt CAN"); fdt_del_tdm(blob); fdt_del_spi_slic(blob); - } -#ifndef CONFIG_SPIFLASH - else if (hwconfig_subarg_cmp("fsl_p1010mux", "tdm_can", "tdm")) { - printf("fdt TDM"); + } else if (hwconfig_subarg_cmp("fsl_p1010mux", "tdm_can", "tdm")) { fdt_del_flexcan(blob); fdt_del_spi_flash(blob); + fdt_disable_uart1(blob); + } else { + /* + * If we don't set fsl_p1010mux:tdm_can to "can" or "tdm" + * explicitly, defaultly spi_cs_sel to spi-flash instead of + * to tdm/slic. + */ + fdt_del_tdm(blob); + fdt_del_flexcan(blob); + fdt_disable_uart1(blob); } #endif -#endif } #endif @@ -309,10 +341,7 @@ int misc_init_r(void) MPC85xx_PMUXCR_CAN2_TDM | MPC85xx_PMUXCR_CAN2_UART); out_8(&cpld_data->tdm_can_sel, MUX_CPLD_CAN_UART); - } -#ifndef CONFIG_SPIFLASH - if (hwconfig_subarg_cmp("fsl_p1010mux", "tdm_can", "tdm")) { - printf("TDM"); + } else if (hwconfig_subarg_cmp("fsl_p1010mux", "tdm_can", "tdm")) { clrbits_be32(&gur->pmuxcr, MPC85xx_PMUXCR_CAN2_UART | MPC85xx_PMUXCR_CAN1_UART); setbits_be32(&gur->pmuxcr, MPC85xx_PMUXCR_CAN2_TDM | @@ -321,8 +350,11 @@ int misc_init_r(void) setbits_be32(&gur->pmuxcr2, MPC85xx_PMUXCR2_UART_TDM); out_8(&cpld_data->tdm_can_sel, MUX_CPLD_TDM); out_8(&cpld_data->spi_cs0_sel, MUX_CPLD_SPICS0_SLIC); - } -#endif + } else { + /* defaultly spi_cs_sel to flash */ + out_8(&cpld_data->spi_cs0_sel, MUX_CPLD_SPICS0_FLASH); + } + return 0; } #endif -- 2.7.4