-----Original Message-----
From: uclinux-dev-boun...@uclinux.org
[mailto:uclinux-dev-boun...@uclinux.org] On Behalf Of Greg Ungerer
Sent: Thursday, May 21, 2009 12:29 AM
To: uClinux development list
Subject: Re: [uClinux-dev] Moving to new kernel distro
Hi All,
Below is a patch that gets the smc91c111 ethernet controller on the M5249 board
running. It is reasonably simple, but this code does rely on the ColdFire
interrupt changes I am working on as well to be applied first. So this is
really just for example purposes at the moment.
There is one additional change needed on this to properly acknowledge the
interrupts from the smc91c111. And I have some up-coming interrupt controller
changes that will actually clean this up properly - so I haven't included that
change here now.
Note: this patch was generated against linux-2.6.30-rc5.
Regards
Greg
--- git.linux-2.6.x.4/drivers/net/smc91x.h 2009-04-17 22:53:23.000000000
+1000
+++ linux-2.6.x/drivers/net/smc91x.h 2009-05-20 14:59:45.000000000 +1000
@@ -371,6 +371,34 @@ static inline void LPD7_SMC_outsw (unsig
#include <unit/smc91111.h>
+#elif defined(CONFIG_COLDFIRE)
+
+#define SMC_CAN_USE_8BIT 0
+#define SMC_CAN_USE_16BIT 1
+#define SMC_CAN_USE_32BIT 0
+#define SMC_NOWAIT 1
+
+static inline void mcf_insw(void *a, unsigned char *p, int l) {
+ u16 *wp = (u16 *) p;
+ while (l-- > 0)
+ *wp++ = readw(a);
+}
+
+static inline void mcf_outsw(void *a, unsigned char *p, int l) {
+ u16 *wp = (u16 *) p;
+ while (l-- > 0)
+ writew(*wp++, a);
+}
+
+#define SMC_inw(a, r) _swapw(readw((a) + (r)))
+#define SMC_outw(v, a, r) writew(_swapw(v), (a) + (r))
+#define SMC_insw(a, r, p, l) mcf_insw(a + r, p, l)
+#define SMC_outsw(a, r, p, l) mcf_outsw(a + r, p, l)
+
+#define SMC_IRQ_FLAGS (IRQF_DISABLED)
+
#else
/*
--- git.linux-2.6.x.4/arch/m68knommu/platform/5249/config.c 2009-05-19
11:45:50.000000000 +1000
+++ linux-2.6.x/arch/m68knommu/platform/5249/config.c 2009-05-21
14:11:00.000000000 +1000
@@ -42,8 +42,35 @@ static struct platform_device m5249_uart
.dev.platform_data = m5249_uart_platform,
};
+#ifdef CONFIG_M5249
+
+static struct resource m5249_smc91x_resources[] = {
+ {
+ .start = 0xe0000300,
+ .end = 0xe0000300 + 0x100,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .start = 166,
+ .end = 166,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct platform_device m5249_smc91x = {
+ .name = "smc91x",
+ .id = 0,
+ .num_resources = ARRAY_SIZE(m5249_smc91x_resources),
+ .resource = m5249_smc91x_resources,
+};
+
+#endif /* CONFIG_M5249 */
+
static struct platform_device *m5249_devices[] __initdata = {
&m5249_uart,
+#ifdef CONFIG_M5249
+ &m5249_smc91x,
+#endif
};
/*********************************************************************
******/ @@ -72,6 +99,24 @@ static void __init m5249_uarts_init(void
/*********************************************************************
******/
+#ifdef CONFIG_M5249
+
+static void __init m5249_smc91x_init(void) {
+ u32 gpio;
+
+ /* Set the GPIO line as interrupt source for smc91x device */
+ gpio = readl(MCF_MBAR2 + MCFSIM2_GPIOINTENABLE);
+ writel(gpio | 0x40, MCF_MBAR2 + MCFSIM2_GPIOINTENABLE);
+
+ gpio = readl(MCF_MBAR2 + MCFSIM2_INTLEVEL5);
+ writel(gpio | 0x04000000, MCF_MBAR2 + MCFSIM2_INTLEVEL5); }
+
+#endif /* CONFIG_M5249 */
+
+/********************************************************************
+**
+*****/
+
static void __init m5249_timers_init(void)
{
/* Timer1 is always used as system timer */ @@ -98,6 +143,9 @@ void
__init config_BSP(char *commandp, i
static int __init init_BSP(void)
{
m5249_uarts_init();
+#ifdef CONFIG_M5249
+ m5249_smc91x_init();
+#endif
platform_add_devices(m5249_devices, ARRAY_SIZE(m5249_devices));
return 0;
}
------------------------------------------------------------------------
Greg Ungerer -- Principal Engineer EMAIL: g...@snapgear.com
SnapGear Group, McAfee PHONE: +61 7 3435 2888
825 Stanley St, FAX: +61 7 3891 3630
Woolloongabba, QLD, 4102, Australia WEB: http://www.SnapGear.com
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