diff options
| author | York Sun <yorksun@freescale.com> | 2008-04-28 13:15:36 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-28 19:58:40 +0400 |
| commit | 6f90a8bdd17e63fb27b4f6d50e8a2919704ea254 (patch) | |
| tree | 0ddc1f609eb63b3f54673d32f7dc15ed1c20fe49 /arch/powerpc/sysdev | |
| parent | 9b53a9e28a34ed82516191dc46ae018e0e899546 (diff) | |
| download | linux-6f90a8bdd17e63fb27b4f6d50e8a2919704ea254.tar.xz | |
powerpc: Add DIU platform code for MPC8610HPCD
Add platform code to support Freescale DIU. The platform code includes
framebuffer memory allocation, pixel format, monitor port, etc.
Signed-off-by: York Sun <yorksun@freescale.com>
Signed-off-by: Timur Tabi <timur@freescale.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/powerpc/sysdev')
| -rw-r--r-- | arch/powerpc/sysdev/fsl_soc.c | 41 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/fsl_soc.h | 23 |
2 files changed, 64 insertions, 0 deletions
diff --git a/arch/powerpc/sysdev/fsl_soc.c b/arch/powerpc/sysdev/fsl_soc.c index 5c1b246aaccc..7b45670c7af3 100644 --- a/arch/powerpc/sysdev/fsl_soc.c +++ b/arch/powerpc/sysdev/fsl_soc.c @@ -892,3 +892,44 @@ void fsl_rstcr_restart(char *cmd) while (1) ; } #endif + +#if defined(CONFIG_FB_FSL_DIU) || defined(CONFIG_FB_FSL_DIU_MODULE) +struct platform_diu_data_ops diu_ops = { + .diu_size = 1280 * 1024 * 4, /* default one 1280x1024 buffer */ +}; +EXPORT_SYMBOL(diu_ops); + +int __init preallocate_diu_videomemory(void) +{ + pr_debug("diu_size=%lu\n", diu_ops.diu_size); + + diu_ops.diu_mem = __alloc_bootmem(diu_ops.diu_size, 8, 0); + if (!diu_ops.diu_mem) { + printk(KERN_ERR "fsl-diu: cannot allocate %lu bytes\n", + diu_ops.diu_size); + return -ENOMEM; + } + + pr_debug("diu_mem=%p\n", diu_ops.diu_mem); + + rh_init(&diu_ops.diu_rh_info, 4096, ARRAY_SIZE(diu_ops.diu_rh_block), + diu_ops.diu_rh_block); + return rh_attach_region(&diu_ops.diu_rh_info, + (unsigned long) diu_ops.diu_mem, + diu_ops.diu_size); +} + +static int __init early_parse_diufb(char *p) +{ + if (!p) + return 1; + + diu_ops.diu_size = _ALIGN_UP(memparse(p, &p), 8); + + pr_debug("diu_size=%lu\n", diu_ops.diu_size); + + return 0; +} +early_param("diufb", early_parse_diufb); + +#endif diff --git a/arch/powerpc/sysdev/fsl_soc.h b/arch/powerpc/sysdev/fsl_soc.h index 74c4a9657b33..52c831fa1886 100644 --- a/arch/powerpc/sysdev/fsl_soc.h +++ b/arch/powerpc/sysdev/fsl_soc.h @@ -17,5 +17,28 @@ extern int fsl_spi_init(struct spi_board_info *board_infos, void (*deactivate_cs)(u8 cs, u8 polarity)); extern void fsl_rstcr_restart(char *cmd); + +#if defined(CONFIG_FB_FSL_DIU) || defined(CONFIG_FB_FSL_DIU_MODULE) +#include <linux/bootmem.h> +#include <asm/rheap.h> +struct platform_diu_data_ops { + rh_block_t diu_rh_block[16]; + rh_info_t diu_rh_info; + unsigned long diu_size; + void *diu_mem; + + unsigned int (*get_pixel_format) (unsigned int bits_per_pixel, + int monitor_port); + void (*set_gamma_table) (int monitor_port, char *gamma_table_base); + void (*set_monitor_port) (int monitor_port); + void (*set_pixel_clock) (unsigned int pixclock); + ssize_t (*show_monitor_port) (int monitor_port, char *buf); + int (*set_sysfs_monitor_port) (int val); +}; + +extern struct platform_diu_data_ops diu_ops; +int __init preallocate_diu_videomemory(void); +#endif + #endif #endif |