Add board specific hookup for TI HECC driver on
AM3517 EVM
Signed-off-by: Sriramakrishnan <s...@ti.com>
Acked-by: Anant Gole <anantg...@ti.com>
---
The driver requires that CAN_STB signal be driven low to enable
CAN PHY. Currently this is being managed from U-boot. Will submit a patch
for handling this as part of board init sequence.
arch/arm/mach-omap2/board-am3517evm.c | 38 +++++++++++++++++++++++++++++
arch/arm/mach-omap2/include/mach/am35xx.h | 10 +++++++
2 files changed, 48 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-omap2/board-am3517evm.c
b/arch/arm/mach-omap2/board-am3517evm.c
index af99faf..42013b5 100644
--- a/arch/arm/mach-omap2/board-am3517evm.c
+++ b/arch/arm/mach-omap2/board-am3517evm.c
@@ -20,6 +20,7 @@
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/gpio.h>
+#include <linux/can/platform/ti_hecc.h>
#include <mach/hardware.h>
#include <mach/am35xx.h>
@@ -223,6 +224,42 @@ static struct omap_board_mux board_mux[] __initdata = {
#define board_mux NULL
#endif
+
+static struct resource am3517_hecc_resources[] = {
+ {
+ .start = AM35XX_IPSS_HECC_BASE,
+ .end = AM35XX_IPSS_HECC_BASE + 0x3FFF,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .start = INT_35XX_HECC0_IRQ,
+ .end = INT_35XX_HECC0_IRQ,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct platform_device am3517_hecc_device = {
+ .name = "ti_hecc",
+ .id = -1,
+ .num_resources = ARRAY_SIZE(am3517_hecc_resources),
+ .resource = am3517_hecc_resources,
+};
+
+static struct ti_hecc_platform_data am3517_evm_hecc_pdata = {
+ .scc_hecc_offset = AM35XX_HECC_SCC_HECC_OFFSET,
+ .scc_ram_offset = AM35XX_HECC_SCC_RAM_OFFSET,
+ .hecc_ram_offset = AM35XX_HECC_RAM_OFFSET,
+ .mbx_offset = AM35XX_HECC_MBOX_OFFSET,
+ .int_line = AM35XX_HECC_INT_LINE,
+ .version = AM35XX_HECC_VERSION,
+};
+
+static void am3517_evm_hecc_init(struct ti_hecc_platform_data *pdata)
+{
+ am3517_hecc_device.dev.platform_data = pdata;
+ platform_device_register(&am3517_hecc_device);
+}
+
static void __init am3517_evm_init(void)
{
am3517_evm_i2c_init();
@@ -233,6 +270,7 @@ static void __init am3517_evm_init(void)
omap_serial_init();
usb_ehci_init(&ehci_pdata);
+ am3517_evm_hecc_init(&am3517_evm_hecc_pdata);
/* DSS */
am3517_evm_display_init();
}
diff --git a/arch/arm/mach-omap2/include/mach/am35xx.h
b/arch/arm/mach-omap2/include/mach/am35xx.h
index a705f94..6d5429b 100644
--- a/arch/arm/mach-omap2/include/mach/am35xx.h
+++ b/arch/arm/mach-omap2/include/mach/am35xx.h
@@ -23,4 +23,14 @@
#define AM35XX_IPSS_HECC_BASE 0x5C050000
#define AM35XX_IPSS_VPFE_BASE 0x5C060000
+
+/* HECC module specifc offset definitions */
+#define AM35XX_HECC_SCC_HECC_OFFSET (0x0)
+#define AM35XX_HECC_SCC_RAM_OFFSET (0x3000)
+#define AM35XX_HECC_RAM_OFFSET (0x3000)
+#define AM35XX_HECC_MBOX_OFFSET (0x2000)
+#define AM35XX_HECC_INT_LINE (0x0)
+#define AM35XX_HECC_VERSION (0x1)
+
+
#endif /* __ASM_ARCH_AM35XX_H */
--
1.6.2.4
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