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 <shengzhou....@freescale.com>
---
based on 'next' branch of git://git.denx.de/u-boot.git tree
board/freescale/p1010rdb/p1010rdb.c | 56 +++++++++++++++++++++++++++-------
1 files changed, 44 insertions(+), 12 deletions(-)
diff --git a/board/freescale/p1010rdb/p1010rdb.c
b/board/freescale/p1010rdb/p1010rdb.c
index b9e66f7..fbf975d 100644
--- a/board/freescale/p1010rdb/p1010rdb.c
+++ b/board/freescale/p1010rdb/p1010rdb.c
@@ -256,6 +256,31 @@ 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;
@@ -285,19 +310,26 @@ 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
@@ -313,10 +345,7 @@ 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 |
@@ -325,8 +354,11 @@ 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
--
1.7.0.4
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