This patch implements several updates:
-Disable CONFIG_ENV_OVERWRITE
-Add new hardware style variants and set the arch numbers appropriate
(autodetect)
-Pass the serial# and hardware revision to the kernel
Signed-off-by: Daniel Gorsulowski <daniel.gorsulow...@esd.eu>
---
board/esd/meesc/meesc.c | 74 ++++++++++++++++++++++++++++++++++++++++++++--
include/configs/meesc.h | 6 +++-
2 files changed, 75 insertions(+), 5 deletions(-)
diff --git a/board/esd/meesc/meesc.c b/board/esd/meesc/meesc.c
index 636d0ed..ecf903d 100644
--- a/board/esd/meesc/meesc.c
+++ b/board/esd/meesc/meesc.c
@@ -46,6 +46,7 @@ DECLARE_GLOBAL_DATA_PTR;
*/
static int hw_rev = -1; /* hardware revision */
+static u_char hw_type; /* hardware type */
int get_hw_rev(void)
{
@@ -63,6 +64,30 @@ int get_hw_rev(void)
return hw_rev;
}
+static void meesc_set_arch_number(void)
+{
+ /* read the "Type" register of the ET1100 controller */
+ hw_type = readb(CONFIG_ET1100_BASE);
+
+ switch (hw_type) {
+ case 0x11:
+ case 0x3F:
+ /* ET1100 present,
+ arch number of MEESC-Board */
+ gd->bd->bi_arch_number = MACH_TYPE_MEESC;
+ break;
+ case 0xFF:
+ /* no ET1100 present,
+ arch number of EtherCAN/2-Board */
+ gd->bd->bi_arch_number = MACH_TYPE_ETHERCAN2;
+ break;
+ default:
+ /* assume, no ET1100 present,
+ arch number of EtherCAN/2-Board */
+ gd->bd->bi_arch_number = MACH_TYPE_ETHERCAN2;
+ break;
+ }
+}
#ifdef CONFIG_CMD_NAND
static void meesc_nand_hw_init(void)
{
@@ -157,7 +182,19 @@ int checkboard(void)
{
char str[32];
- puts("Board: esd CAN-EtherCAT Gateway");
+ switch (hw_type) {
+ case 0x11:
+ case 0x3F:
+ puts("Board: CAN-EtherCAT Gateway");
+ break;
+ case 0xFF:
+ puts("Board: EtherCAN/2 Gateway");
+ break;
+ default:
+ printf("FATAL! Read invalid hw_type: %02X\n", hw_type);
+ puts("Board: EtherCAN/2 Gateway");
+ break;
+ }
if (getenv_r("serial#", str, sizeof(str)) > 0) {
puts(", serial# ");
puts(str);
@@ -167,6 +204,29 @@ int checkboard(void)
return 0;
}
+#ifdef CONFIG_SERIAL_TAG
+void get_board_serial(struct tag_serialnr *serialnr)
+{
+ char *str;
+
+ str = strchr(getenv("serial#"), '_');
+ if (str) {
+ serialnr->high = (*(str + 1) << 8) | *(str + 2);
+ serialnr->low = simple_strtoul(str + 3, NULL, 16);
+ } else {
+ serialnr->high = 0;
+ serialnr->low = 0;
+ }
+}
+#endif
+
+#ifdef CONFIG_REVISION_TAG
+u32 get_board_rev(void)
+{
+ return hw_rev | 0x100;
+}
+#endif
+
int board_init(void)
{
/* Peripheral Clock Enable Register */
@@ -174,8 +234,15 @@ int board_init(void)
1 << AT91SAM9263_ID_PIOB |
1 << AT91SAM9263_ID_PIOCDE);
- /* arch number of MEESC-Board */
- gd->bd->bi_arch_number = MACH_TYPE_MEESC;
+ /* initialize ET1100 Controller */
+ meesc_ethercat_hw_init();
+
+ /* set arch number by hardware type */
+ meesc_set_arch_number();
+
+ /* switch on LED1D, if running on EtherCAN/2 hardware */
+ if (hw_type == 0xFF)
+ at91_set_gpio_output(AT91_PIN_PB12, 1);
/* adress of boot parameters */
gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
@@ -184,7 +251,6 @@ int board_init(void)
#ifdef CONFIG_CMD_NAND
meesc_nand_hw_init();
#endif
- meesc_ethercat_hw_init();
#ifdef CONFIG_HAS_DATAFLASH
at91_spi0_hw_init(1 << 0);
#endif
diff --git a/include/configs/meesc.h b/include/configs/meesc.h
index 8253172..b81e24a 100644
--- a/include/configs/meesc.h
+++ b/include/configs/meesc.h
@@ -36,13 +36,14 @@
#define CONFIG_MEESC 1 /* Board is esd MEESC */
#define CONFIG_ARM926EJS 1 /* This is an ARM926EJS Core */
#define CONFIG_AT91SAM9263 1 /* It's an AT91SAM9263 SoC */
-#define CONFIG_ENV_OVERWRITE 1 /* necessary on prototypes */
#define CONFIG_DISPLAY_BOARDINFO 1
#define CONFIG_DISPLAY_CPUINFO 1 /* display cpu info and speed */
#define CONFIG_PREBOOT /* enable preboot variable */
#define CONFIG_CMDLINE_TAG 1 /* enable passing of ATAGs */
#define CONFIG_SETUP_MEMORY_TAGS 1
#define CONFIG_INITRD_TAG 1
+#define CONFIG_SERIAL_TAG 1
+#define CONFIG_REVISION_TAG 1
#undef CONFIG_USE_IRQ /* don't need IRQ/FIQ stuff */
#define CONFIG_SKIP_LOWLEVEL_INIT
@@ -143,6 +144,9 @@
/* CAN */
#define CONFIG_AT91_CAN 1
+/* hw-controller addresses */
+#define CONFIG_ET1100_BASE 0x70000000
+
/* bootstrap + u-boot + env + linux in dataflash on CS0 */
#define CONFIG_ENV_IS_IN_DATAFLASH 1
#define CONFIG_SYS_MONITOR_BASE
(CONFIG_SYS_DATAFLASH_LOGIC_ADDR_CS0 + \
--
1.5.3
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