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authorVitaly Bordug <vitb@kernel.crashing.org>2007-07-09 11:37:35 -0700
committerKumar Gala <galak@kernel.crashing.org>2007-07-10 00:33:51 -0500
commit80128ff79d282cf71b1819dbca9b8dd47d8ed3e8 (patch)
treec09b48586370aad5bb5d424dea4401778bc1bf2a /arch/powerpc/platforms/8xx/mpc885ads_setup.c
parent90faf4fa7964a08d36160f7bc3c252866ad1275a (diff)
[POWERPC] 8xx: mpc885ads pcmcia support
Adds support for PowerQuicc on-chip PCMCIA. The driver is implemented as of_device, so only arch/powerpc stuff is capable to use it, which now implies only mpc885ads reference board. To cope with the code that should be hooked inside driver, but is really board specific (like set_voltage), global structure mpc8xx_pcmcia_ops holds necessary function pointers that are filled in the BSP code. [akpm@linux-foundation.org: whitespace diddles] Signed-off-by: Vitaly Bordug <vitb@kernel.crashing.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Olof Johansson <olof@lixom.net> Cc: Dominik Brodowski <linux@dominikbrodowski.net> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/platforms/8xx/mpc885ads_setup.c')
-rw-r--r--arch/powerpc/platforms/8xx/mpc885ads_setup.c71
1 files changed, 71 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/8xx/mpc885ads_setup.c b/arch/powerpc/platforms/8xx/mpc885ads_setup.c
index c36e475d93d..dc27dab48df 100644
--- a/arch/powerpc/platforms/8xx/mpc885ads_setup.c
+++ b/arch/powerpc/platforms/8xx/mpc885ads_setup.c
@@ -22,6 +22,7 @@
#include <linux/fs_enet_pd.h>
#include <linux/fs_uart_pd.h>
+#include <linux/fsl_devices.h>
#include <linux/mii.h>
#include <asm/delay.h>
@@ -51,6 +52,70 @@ static void init_smc1_uart_ioports(struct fs_uart_platform_info* fpi);
static void init_smc2_uart_ioports(struct fs_uart_platform_info* fpi);
static void init_scc3_ioports(struct fs_platform_info* ptr);
+#ifdef CONFIG_PCMCIA_M8XX
+static void pcmcia_hw_setup(int slot, int enable)
+{
+ unsigned *bcsr_io;
+
+ bcsr_io = ioremap(BCSR1, sizeof(unsigned long));
+ if (enable)
+ clrbits32(bcsr_io, BCSR1_PCCEN);
+ else
+ setbits32(bcsr_io, BCSR1_PCCEN);
+
+ iounmap(bcsr_io);
+}
+
+static int pcmcia_set_voltage(int slot, int vcc, int vpp)
+{
+ u32 reg = 0;
+ unsigned *bcsr_io;
+
+ bcsr_io = ioremap(BCSR1, sizeof(unsigned long));
+
+ switch(vcc) {
+ case 0:
+ break;
+ case 33:
+ reg |= BCSR1_PCCVCC0;
+ break;
+ case 50:
+ reg |= BCSR1_PCCVCC1;
+ break;
+ default:
+ return 1;
+ }
+
+ switch(vpp) {
+ case 0:
+ break;
+ case 33:
+ case 50:
+ if(vcc == vpp)
+ reg |= BCSR1_PCCVPP1;
+ else
+ return 1;
+ break;
+ case 120:
+ if ((vcc == 33) || (vcc == 50))
+ reg |= BCSR1_PCCVPP0;
+ else
+ return 1;
+ default:
+ return 1;
+ }
+
+ /* first, turn off all power */
+ clrbits32(bcsr_io, 0x00610000);
+
+ /* enable new powersettings */
+ setbits32(bcsr_io, reg);
+
+ iounmap(bcsr_io);
+ return 0;
+}
+#endif
+
void __init mpc885ads_board_setup(void)
{
cpm8xx_t *cp;
@@ -115,6 +180,12 @@ void __init mpc885ads_board_setup(void)
immr_unmap(io_port);
#endif
+
+#ifdef CONFIG_PCMCIA_M8XX
+ /*Set up board specific hook-ups*/
+ m8xx_pcmcia_ops.hw_ctrl = pcmcia_hw_setup;
+ m8xx_pcmcia_ops.voltage_set = pcmcia_set_voltage;
+#endif
}