[ARM] DNS323: Initialise 88F5182 correctly
The 88F5182 found in the DNS-323 rev B1 (and some other devices, such
as the CH3SNAS) require different initialisation of the SATA
controller and MPP registers.
Tested on a DNS-323 rev B1.
Signed-off-by: Matt Palmer <mpalmer@hezmatt.org>
diff --git a/arch/arm/mach-orion5x/dns323-setup.c b/arch/arm/mach-orion5x/dns323-setup.c
index 4053bd3..0722d65 100644
--- a/arch/arm/mach-orion5x/dns323-setup.c
+++ b/arch/arm/mach-orion5x/dns323-setup.c
@@ -21,6 +21,7 @@
#include <linux/gpio_keys.h>
#include <linux/input.h>
#include <linux/i2c.h>
+#include <linux/ata_platform.h>
#include <asm/mach-types.h>
#include <asm/gpio.h>
#include <asm/mach/arch.h>
@@ -64,9 +65,21 @@
.map_irq = dns323_pci_map_irq,
};
+static int __init dns323_dev_id(void)
+{
+ u32 dev, rev;
+
+ orion5x_pcie_id(&dev, &rev);
+
+ return dev;
+}
+
static int __init dns323_pci_init(void)
{
- if (machine_is_dns323())
+ /* The 5182 doesn't really use it's PCI bus, and initialising PCI
+ * gets in the way of initialising the SATA controller.
+ */
+ if (machine_is_dns323() && dns323_dev_id() != MV88F5182_DEV_ID)
pci_common_init(&dns323_pci);
return 0;
@@ -283,10 +296,17 @@
},
};
+/*****************************************************************************
+ * SATA
+ */
+static struct mv_sata_platform_data dns323_sata_data = {
+ .n_ports = 2,
+};
+
/****************************************************************************
* General Setup
*/
-static struct orion5x_mpp_mode dns323_mpp_modes[] __initdata = {
+static struct orion5x_mpp_mode dns323_mv88f5181_mpp_modes[] __initdata = {
{ 0, MPP_PCIE_RST_OUTn },
{ 1, MPP_GPIO }, /* right amber LED (sata ch0) */
{ 2, MPP_GPIO }, /* left amber LED (sata ch1) */
@@ -310,6 +330,30 @@
{ -1 },
};
+static struct orion5x_mpp_mode dns323_mv88f5182_mpp_modes[] __initdata = {
+ { 0, MPP_UNUSED },
+ { 1, MPP_GPIO }, /* right amber LED (sata ch0) */
+ { 2, MPP_GPIO }, /* left amber LED (sata ch1) */
+ { 3, MPP_UNUSED },
+ { 4, MPP_GPIO }, /* power button LED */
+ { 5, MPP_GPIO }, /* power button LED */
+ { 6, MPP_GPIO }, /* GMT G751-2f overtemp */
+ { 7, MPP_GPIO }, /* M41T80 nIRQ/OUT/SQW */
+ { 8, MPP_GPIO }, /* triggers power off */
+ { 9, MPP_GPIO }, /* power button switch */
+ { 10, MPP_GPIO }, /* reset button switch */
+ { 11, MPP_UNUSED },
+ { 12, MPP_SATA_LED },
+ { 13, MPP_SATA_LED },
+ { 14, MPP_SATA_LED },
+ { 15, MPP_SATA_LED },
+ { 16, MPP_UNUSED },
+ { 17, MPP_UNUSED },
+ { 18, MPP_UNUSED },
+ { 19, MPP_UNUSED },
+ { -1 },
+};
+
/*
* On the DNS-323 the following devices are attached via I2C:
*
@@ -340,8 +384,15 @@
/* Setup basic Orion functions. Need to be called early. */
orion5x_init();
- orion5x_mpp_conf(dns323_mpp_modes);
- writel(0, MPP_DEV_CTRL); /* DEV_D[31:16] */
+ /* Just to be tricky, the 5182 has a completely different
+ * set of MPP modes to the 5181.
+ */
+ if (dns323_dev_id() == MV88F5182_DEV_ID)
+ orion5x_mpp_conf(dns323_mv88f5182_mpp_modes);
+ else {
+ orion5x_mpp_conf(dns323_mv88f5181_mpp_modes);
+ writel(0, MPP_DEV_CTRL); /* DEV_D[31:16] */
+ }
/* setup flash mapping
* CS3 holds a 8 MB Spansion S29GL064M90TFIR4
@@ -367,6 +418,12 @@
orion5x_i2c_init();
orion5x_uart0_init();
+ /* The 5182 has it's SATA controller on-chip, and needs it's own little
+ * init routine.
+ */
+ if (dns323_dev_id() == MV88F5182_DEV_ID)
+ orion5x_sata_init(&dns323_sata_data);
+
/* register dns323 specific power-off method */
if (gpio_request(DNS323_GPIO_POWER_OFF, "POWEROFF") != 0 ||
gpio_direction_output(DNS323_GPIO_POWER_OFF, 0) != 0)