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Diffstat (limited to 'arch/ppc/platforms/radstone_ppc7d.c')
-rw-r--r--arch/ppc/platforms/radstone_ppc7d.c60
1 files changed, 54 insertions, 6 deletions
diff --git a/arch/ppc/platforms/radstone_ppc7d.c b/arch/ppc/platforms/radstone_ppc7d.c
index 2a99b43737a..c30607a972d 100644
--- a/arch/ppc/platforms/radstone_ppc7d.c
+++ b/arch/ppc/platforms/radstone_ppc7d.c
@@ -68,6 +68,7 @@
#define PPC7D_RST_PIN 17 /* GPP17 */
extern u32 mv64360_irq_base;
+extern spinlock_t rtc_lock;
static struct mv64x60_handle bh;
static int ppc7d_has_alma;
@@ -75,6 +76,11 @@ static int ppc7d_has_alma;
extern void gen550_progress(char *, unsigned short);
extern void gen550_init(int, struct uart_port *);
+/* FIXME - move to h file */
+extern int ds1337_do_command(int id, int cmd, void *arg);
+#define DS1337_GET_DATE 0
+#define DS1337_SET_DATE 1
+
/* residual data */
unsigned char __res[sizeof(bd_t)];
@@ -253,6 +259,8 @@ static int ppc7d_show_cpuinfo(struct seq_file *m)
u8 val1, val2;
static int flash_sizes[4] = { 64, 32, 0, 16 };
static int flash_banks[4] = { 4, 3, 2, 1 };
+ static int sdram_bank_sizes[4] = { 128, 256, 512, 1 };
+ int sdram_num_banks = 2;
static char *pci_modes[] = { "PCI33", "PCI66",
"Unknown", "Unknown",
"PCIX33", "PCIX66",
@@ -279,13 +287,17 @@ static int ppc7d_show_cpuinfo(struct seq_file *m)
(val1 == PPC7D_CPLD_MB_TYPE_PLL_100) ? 100 :
(val1 == PPC7D_CPLD_MB_TYPE_PLL_64) ? 64 : 0);
+ val = inb(PPC7D_CPLD_MEM_CONFIG);
+ if (val & PPC7D_CPLD_SDRAM_BANK_NUM_MASK) sdram_num_banks--;
+
val = inb(PPC7D_CPLD_MEM_CONFIG_EXTEND);
- val1 = val & PPC7D_CPLD_SDRAM_BANK_SIZE_MASK;
- seq_printf(m, "SDRAM\t\t: %d%c",
- (val1 == PPC7D_CPLD_SDRAM_BANK_SIZE_128M) ? 128 :
- (val1 == PPC7D_CPLD_SDRAM_BANK_SIZE_256M) ? 256 :
- (val1 == PPC7D_CPLD_SDRAM_BANK_SIZE_512M) ? 512 : 1,
- (val1 == PPC7D_CPLD_SDRAM_BANK_SIZE_1G) ? 'G' : 'M');
+ val1 = (val & PPC7D_CPLD_SDRAM_BANK_SIZE_MASK) >> 6;
+ seq_printf(m, "SDRAM\t\t: %d banks of %d%c, total %d%c",
+ sdram_num_banks,
+ sdram_bank_sizes[val1],
+ (sdram_bank_sizes[val1] < 128) ? 'G' : 'M',
+ sdram_num_banks * sdram_bank_sizes[val1],
+ (sdram_bank_sizes[val1] < 128) ? 'G' : 'M');
if (val2 & PPC7D_CPLD_MB_TYPE_ECC_FITTED_MASK) {
seq_printf(m, " [ECC %sabled]",
(val2 & PPC7D_CPLD_MB_TYPE_ECC_ENABLE_MASK) ? "en" :
@@ -1236,6 +1248,38 @@ static void __init ppc7d_setup_arch(void)
printk(KERN_INFO "Radstone Technology PPC7D\n");
if (ppc_md.progress)
ppc_md.progress("ppc7d_setup_arch: exit", 0);
+
+}
+
+/* Real Time Clock support.
+ * PPC7D has a DS1337 accessed by I2C.
+ */
+static ulong ppc7d_get_rtc_time(void)
+{
+ struct rtc_time tm;
+ int result;
+
+ spin_lock(&rtc_lock);
+ result = ds1337_do_command(0, DS1337_GET_DATE, &tm);
+ spin_unlock(&rtc_lock);
+
+ if (result == 0)
+ result = mktime(tm.tm_year, tm.tm_mon, tm.tm_mday, tm.tm_hour, tm.tm_min, tm.tm_sec);
+
+ return result;
+}
+
+static int ppc7d_set_rtc_time(unsigned long nowtime)
+{
+ struct rtc_time tm;
+ int result;
+
+ spin_lock(&rtc_lock);
+ to_tm(nowtime, &tm);
+ result = ds1337_do_command(0, DS1337_SET_DATE, &tm);
+ spin_unlock(&rtc_lock);
+
+ return result;
}
/* This kernel command line parameter can be used to have the target
@@ -1293,6 +1337,10 @@ static void ppc7d_init2(void)
data8 |= 0x07;
outb(data8, PPC7D_CPLD_LEDS);
+ /* Hook up RTC. We couldn't do this earlier because we need the I2C subsystem */
+ ppc_md.set_rtc_time = ppc7d_set_rtc_time;
+ ppc_md.get_rtc_time = ppc7d_get_rtc_time;
+
pr_debug("%s: exit\n", __FUNCTION__);
}